Docket: T-1440-14
Citation:
2016 FC 581
Ottawa, Ontario, July 5, 2016
PRESENT: The
Honourable Mr. Justice Brown
BETWEEN:
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BAYER INC. and
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BAYER
INTELLECTUAL PROPERTY GmbH
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Applicants
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and
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FRESENIUS KABI
CANADA LTD. and
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THE MINISTER OF
HEALTH
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Respondents
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PUBLIC JUDGMENT AND REASONS
(Confidential Judgment and Reasons
Released May 27, 2016)
I.
Nature of the Matter and Summary of Disposition
[1]
This is an application by Bayer Inc. [Bayer] for
an order pursuant to paragraph 6(5)(b) of the Patented Medicine (Notice of Compliance)
Regulations [PM (NOC) Regulations] prohibiting the Minister of
Health from issuing a notice of compliance [NOC] to Fresenius Kabi Canada Ltd. [Fresenius]
for its proposed new drug for injection moxifloxacin hydrochloride [Fresenius-moxifloxacin].
Prohibition is sought on the basis of infringement of Bayer’s Canadian Patent
No. 2,192,418 [the 418 Patent]. Bayer alleges that the Notice of Allegation [NOA]
delivered by Fresenius dated May 5, 2014, is defective because it does not
contain the “detailed statement” required by
subparagraph 5(3)(b)(ii) of the PM (NOC) Regulations, and in any event, that
the allegations in the NOA are not justified.
[2]
Bayer’s original application sought prohibition
until the expiry of three Bayer patents, namely, Canadian Patent Nos. 1,340,114
[the 114 Patent], the 418 Patent, and 2,378,424 [the 424 Patent]. However, portions
of Bayer’s application concerning the 424 Patent were struck: Bayer Inc v
Pharmaceutical Partners of Canada Inc, 2015 FC 388, which decision was
upheld on appeal to this Court: Bayer Inc v Pharmaceutical Partners of
Canada Inc, 2015 FC 797, and by the Federal Court of Appeal: Bayer Inc v
Fresenius Kabi Canada Ltd, 2016 FCA 13.
[3]
The 114 Patent expired on November 3, 2015.
Infringement of the 114 Patent was not in issue.
[4]
Therefore, the remaining issue is Fresenius’
allegation that its new drug does not infringe the 418 Patent. Fresenius seeks
regulatory approval for its proposed new drug by comparison with Bayer’s AVELOX
I.V.TM, an antibacterial for use by adults to treat certain
bacterial infections including those relative to community acquired pneumonia.
Currently, Bayer’s AVELOX I.V. TM is the only moxifloxacin
hydrochloride injection product approved for sale in Canada. The 418 Patent is
listed on the Patent Register in respect of Bayer’s AVELOX I.V. TM.
[5]
Bayer alleges that infringement by Fresenius
occurs during the manufacturing process of Fresenius-moxifloxacin, i.e., at an
intermediate step or stage in the manufacturing process.
[6]
The 418 Patent is presumed to be valid absent
any proof to the contrary, of which there is none. Fresenius does not challenge
the validity of the 418 Patent.
[7]
For the reasons that follow, an order will issue
prohibiting the Minister of Health from issuing a NOC to Fresenius for its
proposed moxifloxacin hydrochloride product for injection until the expiry of
the 418 Patent. The determinative issue is the sufficiency of the NOA; I have
found the NOA defective, because it does not contain the “detailed statement of legal and factual basis” for
the alleged non-infringement which is required by law, namely subparagraph
5(3)(b)(ii) of the PM (NOC) Regulations. Had I not found the NOA
defective, I would have dismissed this application because Bayer failed to
establish on a balance of probabilities that the allegations of
non-infringement are not justified.
II.
Facts
The Patent
[8]
The relevant 418 Patent claims the monohydrate
form of moxifloxacin hydrochloride, or
1-cyclopropyl-7-[(S,S)-2,8-diaza-bicyclo[4,3,0]non-8-yl]-6-fluoro-8-methoxy-1,4-dihydro-4-oxo-3-quinolinecarboxylic
acid hydrochloride [CDCH], in the following terms:
CLAIMS:
1. A monohydrate of CDCH, of the formula […]
which has a characteristic peak at 168.1 ppm in the 13C-NMR spectrum and
a band at 2[θ]=26.7 in the X-ray diffractogram.
2. A monohydrate of CDCH according to claim
1 in the prismatic crystal form.
3. A process for the preparation of the CDCH
monohydrate according to claim 1 or 2, wherein anhydrous CDCH is treated with
an amount of water, which is at least sufficient for thorough mixing and
hydration, until the stoichiometric content of water of crystallization has
been absorbed and conversion of the crystals is complete, after which the
crystals of the monohydrate thus obtained are separated off and the adsorbed
water present is removed.
4. A process according to claim 3, wherein a
suspension of the anhydrous CDCH .in an aqueous medium is stirred until
hydration and conversion of the crystals is complete.
5. A process according to claim 3, wherein
in preparing the monohydrate in the form of prisms, anhydrous CDCH or CDCH
monohydrate in the form of needles is dissolved in a medium composed of water
and a solvent which medium has a water content which is stoichiometrically
sufficient but limited to 10% and the solvent is then removed.
6. A process according to claim 5, wherein
the solvent component of the medium is ethanol.
7. A process according to claim 3, wherein
anhydrous CDCH is exposed to humidity until the crystals have been converted
quantitatively.
8. A medicament comprising a monohydrate of
CDCH according to claim 1 or 2 together with a pharmaceutically acceptable
diluent or carrier.
9. A medicament according to claim 8 for use
in the treatment of bacterial infections.
10. An antibacterial composition comprising
a monohydrate of CDCH according to claim 1 or 2 together with a suitable
diluent or carrier.
11. An antibacterial composition according
to claim 10 for the preservation of materials.
12. Use of a monohydrate of CDCH according
to claim 1 or 2 for the treatment of bacterial infections.
13. Use of a monohydrate of CDCH according
to claim 1 or 2 for the preservation of materials.
14. Use of a monohydrate of CDCH according
to claim 1 or 2 in the preparation of a medicament for the treatment of bacterial
infections.
[9]
The NOA dated May 5, 2014, regarding the 418
Patent alleges that Claims 3-7, 11 and 13 are not relevant and need not be
addressed under the PM (NOC) Regulations. With respect to the remaining
claims, the NOA alleges, that no claims for the medicinal ingredient,
formulation, dosage form and use of the medicinal ingredient in those claims
would be infringed by Fresenius making, constructing, using or selling
Fresenius-moxifloxacin.
The Notice of Allegation
[10]
Note that the NOA was originally delivered by Pharmaceutical
Partners of Canada [PPC]. Fresenius has since stepped into the shoes of PPC.
[11]
The relevant portions of the NOA are:
II. Non-infringement of claims 1, 2, 8,
9, 10, 12 and 14. No use of monohydrate
PPC alleges, pursuant to section 5(1)(b)(iv)
of the NOC Regulations that no claim for the medicinal ingredient, formulation,
dosage form or use of the medicinal ingredient in claims 1, 2, 8, 9, 10, 12 and
14 of the 418 Patent will be infringed by PPC making, constructing, using or
selling PPC-moxifloxacin.
An essential element of all claims of the
418 Patent is CDCH monohydrate. The only independent claim, Claim 1 requires a
monohydrate of CDCH which has a characteristic peak at 168.1 ppm in the 13C-NMR
spectrum and a band at 2θ=26.7 in the X-ray diffractogram.
As PPC-moxifloxacin is a solution, it will
not contain CDCH (moxifloxacin hydrochloride) in any crystalline form. Once the
moxifloxacin is dissolved in solution, no crystal structure exists and the
product will not have [essential patent claim C-NMR and XRPD spectra]. PPC-moxifloxacin
will not contain moxifloxacin in crystalline form let alone in the claimed
monohydrate form and therefore will not infringe any of the claims of the 418
Patent.
Further, characteristics of a crystalline
form and differences in crystalline form have no bearing on the final product
in solution. The solid form of the API used to produce PPC-moxifloxacin is
therefore trivial and merely incidental to PPC-moxifloxacin.
In addition, PPC-moxifloxacin does not use
the claimed monohydrate form of CDCH. Rather, it uses a different form of
moxifloxacin. Specific details of the PPC formulation, API and product will
be provided under a confidentiality agreement. PPC-moxifloxacin will not
contain moxifloxacin monohydrate […]. Moxifloxacin monohydrate will not be
used in the manufacture of PPC-moxifloxacin or in the manufacture of the
moxifloxacin API used in the manufacture of PPC-moxifloxacin.
Finally, to the extent that Bayer may assert
that the claims of the 418 Patent extend beyond the claimed monohydrate form of
moxifloxacin to include other forms of moxifloxacin, PPC relies on the
principle in Gillette Safety Razor Company v. Anglo American Trading Company
(1913), 30 R.P.C. 465, such that should the claims include prior art uses, they
are invalid for reading on the prior art. Specifically, the product PPC intends
to sell will contain an old and known form of moxifloxacin. Thus, if PPC
infringes the 418 Patent, then the 418 Patent is invalid.
Further, PPC does not use the prismatic
crystal form of claim 2; nor does it use the processes of claims 3-7; nor does
it seek approval for compositions and uses for the preservation of materials of
claims 11 and 13.
Accordingly, no claim for the medicinal
ingredient, formulation, dosage form or use of the medicinal ingredient in
claims 1-14 of the 418 Patent will be infringed by PPC making, constructing,
using or selling PPC-moxifloxacin.
[emphasis added]
[12]
[…………………………………..Redacted……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………….].
[13]
The NOA alleges Fresenius would not infringe the
418 Patent on the moxifloxacin hydrochloride monohydrate through making,
constructing, using or selling Fresenius-moxifloxacin. Fresenius alleges its
product is in solution form, which cannot contain the crystalline form required
by Claim 1 of the 418 Patent. Moreover, Fresenius alleges it would not use the
monohydrate moxifloxacin specified by the 418 Patent in its manufacturing of
Fresenius-moxifloxacin or in the manufacture of the active pharmaceutical
ingredient used in the manufacture of Fresenius-moxifloxacin.
Non Disclosure of Offshore Manufacture and Importation of
Fresenius-moxifloxacin
[14]
Fresenius did not disclose in its NOA the fact that
its proposed new drug is to be manufactured, processed and packaged offshore
and imported into Canada. Instead, Fresenius disclosed its offshore manufacture
and importation of Fresenius-moxifloxacin to Bayer only after Bayer commenced
these proceedings, and then only after the parties entered into a
confidentiality agreement.
[15]
However, Fresenius in its NOA stated that the
solid form of the active pharmaceutical ingredient used to produce Fresenius-moxifloxacin
was “trivial and merely incidental” to Fresenius-moxifloxacin.
Fresenius says the words “trivial and merely
incidental” are words from which Bayer should have known that the drug in
question would be manufactured offshore and imported into Canada. Fresenius
says this because these words are found in decisions of this Court under the PM
(NOC) Regulations and under the Patent Act, RSC 1985, c P-4, in
which proposed new drugs were manufactured offshore for importation into
Canada. These decisions interpret the Saccharin Doctrine to which
Fresenius did not refer in its NOA, and which will be discussed in detail later
in these Reasons.
III.
Issues
[16]
There are essentially two issues in this
application:
1.
Whether Fresenius’ NOA dated May 5, 2014, is
defective in that it does not contain the necessary “detailed
statement” required by subparagraph 5(3)(b)(ii) of the PM (NOC)
Regulations; and
2.
In the alternative, whether Bayer has shown on a
balance of probabilities that Fresenius’ allegations of non-infringement are not
justified.
Issue 1: Whether Fresenius’ Notice of Allegation dated May
5, 2014, is defective
[17]
In my respectful view, Fresenius’ NOA is
defective because it fails to satisfy the requirement of subparagraph
5(3)(b)(ii) of the PM (NOC) Regulations: the NOA does not contain
“a detailed statement of the legal and factual basis”
on which it was sought. The NOA fails to satisfy the legal tests established by
this Court and by the Federal Court of Appeal construing what is meant by “detailed statement”.
[18]
Specifically, while Fresenius alleges in its NOA
that it will not infringe the 418 Patent, it does not say whether non-infringement
will take place in Canada, or offshore where it will be made for importation
into Canada. The essence of Fresenius’ allegation of non-infringement is as
follows:
Moxifloxacin monohydrate will not be used in
the manufacture of PPC-moxifloxacin [Fresenius-moxifloxacin] or in the
manufacture of the moxifloxacin API [active pharmaceutical ingredient] used in
the manufacture of PPC-moxifloxacin.
[19]
Bayer, on the other hand and as noted, argues that
Fresenius uses Bayer’s patented moxifloxacin hydrochloride monohydrate as part
of or as an intermediate in the manufacturing process of Fresenius-moxifloxacin.
[20]
Fresenius’ argument is that the drug to be sold
in Canada does not itself infringe the 418 Patent, a point conceded by Bayer in
that the imported drug for which the NOC is sought does not contain Bayer’s patented
product.
[21]
In the alternative however, Fresenius argues there
is no infringement because the drug is manufactured outside Canada and imported
into Canada. In addition, Fresenius argues that even if the patented substance is
used or appears during the manufacturing process outside Canada, such use is a “trivial and merely incidental” use of the product
which is insufficient for the Court to find infringement by importation.
[22]
However, as noted above, Fresenius did not disclose
in its NOA the facts of manufacture offshore and importation. It disclosed
these facts only after Bayer initiated these proceedings and only then after a
confidentiality agreement was obtained. This is a point of contention to which
I will return. Fresenius’ NOA is dated May 5, 2014. Bayer’s Notice of
Application is dated June 18, 2014 (amended July 31, 2014). A confidentiality order
was issued July 21, 2014. Fresenius’ disclosure of the facts of manufacture
abroad and importation took place when it sent Bayer material from its Abbreviated
New Drug Submission [ANDS] on July 16, 2014 pursuant to the agreed upon confidentiality
order.
[23]
Fresenius’ disclosure of the offshore
manufacture and importation of its proposed drug into Canada (albeit not made in
its NOA) raises the so-called Saccharin Doctrine (after Saccharin
Corp v Anglo-Continental Chemical Works, Ltd (1900), 17 RPC 307 (HCJ) [Saccharin]),
by which importers of products manufactured outside of Canada infringe Canadian
patents if there is a “strong link” between the
use of the patented product abroad and the product imported into Canada: Pfizer
Canada Inc v Canada (Health), 2007 FC 898 [Pfizer-Atorvastatin] at
para 91. Infringement by importation arises even where the product ultimately imported
into Canada does not infringe the Canadian patent. Indeed, the Saccharin
Doctrine comes into play where there is no infringement by the imported product
itself, in this case a drug, but where nonetheless the offshore manufacturing infringes
the Canadian patent by using or producing the patented product offshore, after
which the drug is then imported into Canada.
[24]
The Supreme Court of Canada confirmed the
application of the Saccharin Doctrine in Canadian patent law: Monsanto
Canada Inc v Schmeiser, 2004 SCC 34 [Monsanto]. The Court said the
rule is an “expansive” one, and at para 43 stated
that “[i]nfringement through use is thus possible even
where the patented invention is part of, or composes, a broader unpatented
structure or process”. The dissent confirmed at para 155: “[i]t is well established that the use or sale of unpatented
subject matter may still infringe a patent where the unpatented subject matter
is made employing a patented process: Saccharin Corp v. Anglo-Continental
Chemical Works, Ld. (1900), 17 R.P.C. 307 (H.C.J.); F. Hoffmann-Laroche,
supra, at p. 415; Wellcome Foundation Ltd. v. Apotex Inc. (1991),
39 C.P.R. (3d) 289 (F.C.T.D.); American Cyanamid Co. v. Charles E. Frosst &
Co. (1965), 29 Fox Pat. C. 153 (Ex. Ct.)” [emphasis in original].
The Saccharin Doctrine has been recognized to apply to infringement by
importation: for example, Pfizer-Atorvastatin at paras 80-88.
[25]
It is also well established that use of a
patented substance at an intermediate step or stage in the production of a
proposed new drug constitutes infringement for the purposes of “making, constructing, using or selling” in
subparagraph 5(1)(b)(iv) of the PM (NOC) Regulations. See, for example,
the Federal Court of Appeal’s decision in Abbott Laboratories v Canada
(Minister of Health), 2006 FCA 187 at para 16:
The phrase “making, constructing, using or
selling” in subparagraph 5(1)(b)(iv) describes a range of activities that is
broader than merely including a patented substance in the proposed new drug. In
my view, that phrase is broad enough to include the use of the patented
substance at an intermediate stage in the production of the proposed new drug.
I reach that conclusion based on the ordinary and grammatical meaning of the
phrase. I see nothing in the purpose or object of the NOC Regulations
that compels a narrower interpretation.
And to the same effect: Abbott
Laboratories v Canada (Minister of Health), 2007 FCA 73 at para 4.
[26]
There is no dispute that offshore manufacture
and importation of Fresenius’ drug gives rise to different legal and factual
tests relating to non-infringement by importation as per the Saccharin
Doctrine, as opposed to the tests for non-infringement in Canada. Fresenius’
NOA did not set out any detail of the legal basis on which an allegation of non-infringement
by importation could be based. However, a major argument advanced by Fresenius
both in its written and oral pleadings was that the imported drug did not
infringe by importation.
[27]
In fact, given the new drug does not infringe
the 418 Patent, a point Bayer conceded, infringement by importation became the major
issue in this proceeding.
[28]
This situation gives rise to the first issue on this
Application: whether Fresenius should have alleged non-infringement by
importation in its NOA with respect to its proposed importation into Canada of
a new drug manufactured and processed offshore. That is, was Fresenius required
to state the factual and legal details of the basis for its alleged
non-infringement by importation in the required “detailed
statement of the legal and factual basis” as interpreted in the case law?
This requires an examination of the PM (NOC) Regulations and the authorities
on point.
(1)
The PM (NOC) Regulations require a “detailed statement” of all factual and legal issues
in a NOA
[29]
The starting point are the PM (NOC)
Regulations themselves of which in this context subsection 5(3) is most
relevant:
5 (1) If a second person files a submission for a notice of
compliance in respect of a drug and the submission directly or indirectly
compares the drug with, or makes reference to, another drug marketed in
Canada under a notice of compliance issued to a first person and in respect
of which a patent list has been submitted, the second person shall, in the
submission, with respect to each patent on the register in respect of the
other drug,
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5 (1) Dans le cas où la seconde personne dépose une
présentation pour un avis de conformité à l’égard d’une drogue, laquelle
présentation, directement ou indirectement, compare celle-ci à une autre
drogue commercialisée sur le marché canadien aux termes d’un avis de
conformité délivré à la première personne et à l’égard de laquelle une liste
de brevets a été présentée — ou y fait renvoi —, cette seconde personne
doit, à l’égard de chaque brevet ajouté au registre pour cette autre
drogue, inclure dans sa présentation :
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(a) state that the second person accepts that the notice of
compliance will not issue until the patent expires; or
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a) soit une déclaration portant qu’elle accepte que l’avis de
conformité ne sera pas délivré avant l’expiration du brevet;
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(b) allege that
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b) soit une allégation portant que, selon le cas :
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(i) the statement made by the first person under paragraph 4(4)(d)
is false,
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(i) la déclaration présentée par la première personne aux termes
de l’alinéa 4(4)d) est fausse,
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(ii) the patent has expired,
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(ii) le brevet est expiré,
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(iii) the patent is not valid, or
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(iii) le brevet n’est pas valide,
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(iv) no claim for the medicinal ingredient, no claim for the
formulation, no claim for the dosage form and no claim for the use of the
medicinal ingredient would be infringed by the second person making,
constructing, using or selling the drug for which the submission is filed.
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(iv) elle ne contreferait aucune revendication de l’ingrédient
médicinal, revendication de la formulation, revendication de la forme
posologique ni revendication de l’utilisation de l’ingrédient médicinal en
fabriquant, construisant, utilisant ou vendant la drogue pour laquelle la
présentation est déposée.
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…
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…
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(3) A second person who makes an allegation under paragraph
(1)(b) or (2)(b) shall
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(3) La seconde personne qui inclut l’allégation visée à
l’alinéa (1)b) ou (2)b) doit prendre les mesures suivantes :
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(a) serve on the first person a notice of allegation
relating to the submission or supplement filed under subsection (1) or (2) on
or after its date of filing;
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a) signifier à la première personne un avis de l’allégation
à l’égard de la présentation ou du supplément déposé en vertu des paragraphes
(1) ou (2), à la date de son dépôt ou à toute date postérieure;
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(b) include in the notice of allegation
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b) insérer dans l’avis de l’allégation :
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…
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…
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(ii) a detailed statement of the legal and factual basis for
the allegation;
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(ii) un énoncé détaillé du fondement juridique et factuel de
l’allégation;
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…
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…
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[emphasis added]
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[soulignement
ajouté]
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[30]
Subparagraph 5(1)(b)(iv) requires that a second
person requesting a NOC in respect of a drug listed on the Patent Register “5(1)(b) … shall … allege that … (iv) no claim for the
medicinal ingredient, no claim for the formulation, no claim for the dosage
form and no claim for the use of the medicinal ingredient would be infringed by
the second person making, constructing, using or selling the drug for which the
submission is filed.”
[31]
Further, and also material to the present
discussion, where a NOA is filed, subparagraph 5(3)(b)(ii) requires that “(3) [a] second person who makes an allegation under
paragraph (1)(b) … shall … (b) include in the notice of allegation… (ii) a
detailed statement of the legal and factual basis for the allegation.”
[32]
Stripped to their essentials, the PM (NOC) Regulations
require Fresenius to set out “a detailed statement of
the legal and factual basis for the allegation” of non-infringement. There
is no dispute that Fresenius was obliged to set out such “detailed statement”. However, the parties dispute the
application of this law to the present case. I turn to the authorities.
(2)
Jurisprudence requires a “detailed statement”: i.e., factual and legal issues must
be set out in a NOA
A – The Jurisprudence
[33]
The requirement to set out “a detailed statement” of allegations of
non-infringement has been considered on several occasions by this Court and the
Federal Court of Appeal, as set out below.
[34]
Bayer Inc v Cobalt Pharmaceuticals Company, 2013 FC 1061 [Cobalt], per Hughes J. stands for the
proposition that a second person must raise “all the
facts and legal arguments upon which it relies in support of its allegations.”
Importantly, the decision says that the second person cannot craft new
arguments, or raise new allegations or new facts or new prior art documents not
set out in its NOA. This Court observed that this may seem draconian, but that
it is equally draconian for the first person who decided to institute
proceedings to face shifting allegations and facts:
GOING BEYOND
THE NOTICE OF ALLEGATION
[34] It has
been firmly established by the Court of Appeal that the second person, a
generic such as Cobalt, has an obligation in its Notice of Allegation to
raise all the facts and legal arguments upon which it relies in support of
its allegations. It cannot craft new arguments, or raise new allegations or new
facts or new prior art documents not set out in the Notice of Allegation. (AB
Hassle v Canada (Minister of National Health and Welfare) (2000), 7 CPR (4th) 272, at paras
21-24; Proctor & Gamble Pharmaceuticals Canada, Inc v Canada (Minister
of Health), 2002 FCA 290, at paras 21-26.
[35] While this may seem draconian
since, undoubtedly, new matters may be raised as experts are consulted and
evidence emerges, it is equally draconian for the first person who
decides to institute proceedings to face shifting allegations and facts.
The process is in need of change, but no interested person seems to be pressing
for that change.
[36] As matters stand now, the Court must
reject arguments based on facts or documents not set out in the Notice
of Allegation nor can the Court address new allegations.
[emphasis added]
[35]
AB Hassle v Canada (Minister of National
Health and Welfare) (2000), 7 CPR (4th) 272 (FCA),
per Stone JA [AB Hassle], is perhaps one of the most frequently cited
cases of the Federal Court of Appeal regarding the required “detailed statement”. It stands for the proposition
that the NOA is a pivotal step in the process, and puts the patentee on notice
of the grounds on which the second person considers that the making,
constructing, using or selling of the drug will not infringe. The theory of the
regime is to enable the patentee to confidently decide whether to resist the
issuance of a NOC. The NOA casts a long shadow over proceedings such as those
before the Court now. Indeed it is upon the content of the NOA that patentees
must decide whether or not to commence a section 6 proceeding and to assess its
chances of success or failure. Therefore, the Federal Court of Appeal concluded
that a second person must do what, in fact, paragraph 5(3)(a) requires, i.e.,
set forth in its NOA a “detailed statement” of “the legal and factual basis” for its allegation. The
Court emphasized that the second person must do so in a sufficiently complete
manner as to enable the patentee to assess its course of action in response to
the allegation. The Court of Appeal said that the regulatory intent appears to
be that the entire factual basis be set forth in the NOA, adding that the
second person could not cure deficiencies nor add to the facts set forth in its
“detailed statement”:
[19] The detailed statement is not a
pleading per se but represents a pivotal step in the process leading up
to the issuance of an NOC. By taking that step the second person puts the
patentee on notice of the grounds on which he or she considers that the making,
constructing, using or selling of the drug will not infringe the second
person’s patent rights during the unexpired term of the patent. In theory, this
procedure ought to enable the patentee to confidently decide within the
45-day time limit whether to resist the issuance of an NOC.
[20] While it is true that the detailed
statement is not filed in a section 6 proceeding, it nevertheless casts
a long shadow over that proceeding. Indeed, it is upon the content of that
statement that the patentee must decide whether or not to commence a section 6 proceeding
and to assess its chances of success or failure.
[21] In my view, all of these considerations
suggest that a second person must do what, in fact, paragraph 5(3)(a)
requires, i.e. set forth in the detailed statement “the legal and factual
basis” for the paragraph 5(1)(b) allegation and to do so in a sufficiently
complete manner as to enable the patentee to assess its course of action in
response to the allegation. See Pharmacia Inc. v. Canada (Minister of
National Health and Welfare) (1994), 58 C.P.R. (3d) 209 (F.C.A.) at 216,
per Strayer J.A.
[23] The respondent suggests that the list
of prior art in the detailed statement was not intended to be exhaustive, hence
the presence of the word “including”, so that the way was left open to add to
that list in the section 6 proceeding. I am of the view, however, that
paragraph 5(3)(a) does not contemplate such possibility. The intent appears to
be that the entire factual basis be set forth in the statement rather
than be revealed piecemeal when some need happens to arise in a section 6
proceeding. This Court has cautioned persons in the position of the
respondent that they assume a risk that a particular allegation may not be in
compliance with the Regulations and that the deficiency cannot be cured by the Court
in a section 6 proceeding.
[24] … This Court decided in Hoffmann-LaRoche
Ltd. v. Canada (Minister of National Health and Welfare) (1996), 70 C.P.R.
(3d) 1, that a second person could not in a section 6 proceeding add to the
facts that were set forth in its detailed statement.
[emphasis added]
[36]
Proctor & Gamble Pharmaceuticals Canada,
Inc v Canada (Minister of Health), 2002 FCA
290 per Rothstein JA [Proctor & Gamble], is a further decision of
the Federal Court of Appeal emphasizing that the second person’s NOA must provide
all the facts it intends to rely upon in subsequent prohibition proceedings,
and cannot rely on facts that exceed those laid out in its “detailed statement”:
[22] However, the notices of allegation and
the detailed statement of legal and factual basis for the allegation must
provide all the facts the generic producer intends to rely upon in
subsequent prohibition proceedings. It cannot rely on facts that exceed those
laid out in its detailed statement. See Merck Frosst Canada Inc. v. Canada
(Minister of Health) (2002)12 C.P.R. (4th) 447 at paragraph 19 per Stone
J.A.
[emphasis added]
[37]
Astrazeneca AB v Apotex Inc 2005 FCA 183, per Evans JA [Astrazeneca], confirms that a
NOA is insufficient if it leaves the patent holder having to guess at the real
grounds for the allegation that the patent would not be infringed:
[12] Third, a detailed statement of the
bases of an allegation must be sufficiently complete to enable a patentee to
make an informed decision as to whether to respond to the allegation by
instituting proceedings for an order of prohibition: AB Hassle v. Canada
(Minister of National Health and Welfare) (2000), 7 C.P.R. (4th) 272 (F.C.A
) at para. 21. In SmithKline Beecham Inc. v. Apotex Inc. (2001), 10
C.P.R. (4th) 338 (F.C.A.) at para. 27, Noël J.A. held that the detailed
statement in that case was not insufficient “in the sense that it left
SmithKline having to guess at the real grounds for the respondents' allegation
that the patent would not be infringed.”
[38]
Novopharm Ltd v Pfizer Canada Inc, 2005 FCA 270, per Malone JA [Pfizer], is a further
enunciation of the purpose of a NOA which is that a NOA must be sufficient to
make the patentee fully aware of the grounds on which the generic claimed the
patent would not be infringed if a NOC issued. In addition, there are limits to
what must be disclosed. A second person is not required to anticipate all
possible grounds of infringement including speculative theories:
[4] In its more recent jurisprudence, this
Court has repeatedly stated that the test of the adequacy of a NOA is whether
the detailed statement was sufficient to make the patentee (Pfizer) fully
aware of the grounds on which the generic (Novopharm) claimed that the relevant
patent would not be infringed if a NOC was issued by the Minister (see AB
Hassle v. Canada (Minister of National Health and Welfare) (2000), 7 C.P.R.
(4th) 272 (F.C.A.) at paragraph 17, per Stone J.A. (AB Hassle 1);
SmithKline Beecham Inc. v. Apotex Inc. (2001), 10 C.P.R. (4th) 338 (F.C.A.)
at paragraph 26, per Noël J.A.; and also Pfizer Canada Inc. v. Apotex
Inc. (2004), 38 C.P.R. (4th) 400 (F.C.A.) at paragraph 24, per Evans
J.A.).
…
[16] … The legal test of adequacy does not
require [the generic] to anticipate all possible grounds of infringement,
including [the first person’s] speculative theory that the dihydrate could be
used in the process of manufacturing [the second person’s] bulk monohydrate. As
noted by Evans J.A. in AstraZeneca v Apotex Inc. 2005 FCA 183 … :
A second person [the generic] should
not be required to anticipate every theory of possible infringement, however
speculative, in the detailed statement supporting its allegations.
[emphasis added]
[39]
Bayer Inc v Cobalt Pharmaceuticals Company, 2015 FCA 116, on appeal from Hughes J.’s decision in Cobalt
is the Federal Court of Appeal’s most recent statement on what must be included
in the detailed statement required in a NOA. The Federal Court of Appeal held
that it is not open for a second person in
prohibition proceedings under the PM (NOC) Regulations to stray from its
NOA.
[61] It is not open to Cobalt in prohibition proceedings under the NOC Regulations or
appeals therefrom to stray from its notice of allegation: Procter
& Gamble Pharmaceuticals Canada, Inc. v. Canada (Minister of Health),
2002 FCA 290, [2003] 1 F.C. 402 at paragraph 22. Therefore, Cobalt’s submission
must be rejected.
[emphasis added]
B – Summary of the cases
[40]
From the foregoing, I conclude that Fresenius’
NOA must allege all the facts and legal arguments upon which it intends to rely
in support of its allegations. In a word, Fresenius must do what paragraph
5(3)(a) requires it to do, namely to set out in its NOA a “detailed statement” of “the
legal and factual basis” for its allegations. However, a second person is
not required to anticipate every theory of possible infringement, however
speculative, in its detailed statement. Those who file inadequate NOAs must
assume their own risks when it comes to attacks on the adequacy of such
allegations once prohibition proceedings are commenced.
[41]
The test of the adequacy of a NOA is whether the
detailed statement is sufficient to make the patentee fully aware of the
grounds on which the generic claimed that the relevant patent would not be
infringed if a NOC is issued. The first person must be informed in a
sufficiently complete manner to enable it to confidently decide and assess its
course of action and chances of success or failure.
[42]
Conversely, the second party may not craft new
arguments, or raise new allegations or facts not set out in the NOA. A second
person may not cure deficiencies in the NOA. It may not stray from its NOA.
[43]
The Courts have cautioned that second persons
assume a risk that a particular allegation may not comply with the PM (NOC) Regulations
and that such a deficiency cannot be cured by the Court in a section 6
proceeding. While this may seem draconian, it is equally draconian for the
first person who decides to institute proceedings to face shifting allegations,
legal arguments, and facts.
(3)
Application of PM (NOC) Regulations and Case
Law to the Fresenius NOA
[44]
With these principles in mind, I turn to the NOA
in this case, the material parts of which state:
… PPC-moxifloxacin will not contain
moxifloxacin in crystalline form let alone in the claimed monohydrate form and
therefore will not infringe any of the claims of the 418 Patent.
Further, characteristics of a crystalline
form and differences in crystalline form have no bearing on the final product
in solution. The solid form of the API used to produce PPC-moxifloxacin is therefore
trivial and merely incidental to PPC-moxifloxacin.
In addition, PPC-moxifloxacin does not use
the claimed monohydrate form of CDCH. Rather, it uses a different form of
moxifloxacin. Specific details of the PPC formulation, API and product will be
provided under a confidentiality agreement. PPC-moxifloxacin will not contain
moxifloxacin monohydrate […]. Moxifloxacin monohydrate will not be used in the
manufacture of PPC-moxifloxacin or in the manufacture of the moxifloxacin API
used in the manufacture of PPC-moxifloxacin.
[45]
As noted already, Fresenius’ NOA does not detail
the fact that the drug for which it seeks a NOC is manufactured and processed
outside Canada. It does not set out the fact that the drug is imported into
Canada from abroad. Fresenius does not set out in detail that it relies on the
legal principles surrounding non-infringement by importation as developed in
the Saccharin Doctrine.
[46]
Given the law cited above, on the facts of this
case, Fresenius’ NOA is defective on its face because it does not do what the PM
(NOC) Regulations require it to do – it does not provide the necessary
detailed statement either of the facts or of the law relied upon by Fresenius
in relation to its alleged non-infringement by importation.
[47]
Fresenius takes a different position and advances
several reasons to support its argument that its NOA is not defective.
(4)
Did Fresenius make adequate disclosure by use of
“code words” for non-infringement by importation?
[48]
Fresenius says it made adequate disclosure by
stating in the NOA that the “[s]olid form of the API
used to produce PPC-moxifloxacin is therefore trivial and merely incidental to
PPC-moxifloxacin.” Fresenius argues it was not required to make more fulsome
disclosure in referring to non-infringement by importation than its use of
these indirect allusions to what may or may not have been the infringement or
non-infringement by importation rules. While Fresenius nowhere states its new drug
is manufactured offshore, nor that the new drug is to be imported into Canada, and
does not detail any factual or legal arguments concerning non-infringement by
importation, it says Bayer, indeed anybody in the field, should have known from
these words that the drug was manufactured abroad and imported into Canada. It
says the use of what appear to be code words (“trivial
and merely incidental”) gave sufficient notice of non-infringement by
importation to Bayer.
[49]
The words “trivial”
and “merely incidental” do appear in patent cases
relating to non-infringement by importation. The concepts of trivial and non-essential
use appear in the decision of Justice Gauthier, as she then was, in Eli
Lilly and Company v Apotex Inc, 2009 FC 991 at paras 327 and 355, where
the Court reviews the law of infringement by importation and the Saccharin
Doctrine. This decision was subsequently approved by the Federal Court
of Appeal in Eli Lilly and Company v Apotex Inc, 2010 FCA 240 at para
19. These words also appear in the decision of Justice Snider in Pfizer-Atorvastatin
at paras 77 (“merely incidental”) and 90 (“incidental, non-essential, or could readily be substituted”),
as will be discussed later, as they do in the original Saccharin
decision itself.
[50]
However, in my respectful view, the use of code
words in Fresenius’ NOA does not satisfy the statutory duty imposed on
Fresenius by the PM (NOC) Regulations to set out a “detailed statement of the legal and factual basis” for its allegations. In my respectful view,
these words provide no “detail” at all. They may
constitute hints or clues as to the basis(es) which Fresenius might or might
not be using to support an allegation of non-infringement. But in my view, giving
clues is not enough to satisfy the mandatory and direct regulatory requirement
to provide a “detailed statement”.
[51]
Neither do these code words satisfy the jurisprudence.
The authorities make it clear that all the facts and legal arguments must be
set out in the “detailed statement”: Cobalt
at para 34, AB Hassle at para 23, Proctor & Gamble at para
22, Pfizer at para 4. In my view, the material facts and legal arguments
relating to non-infringement by importation should have been present in, but contrary
to the PM (NOC) Regulations are absent from, this NOA. This Court insisting
on more than vague clues or code words does not ask Fresenius to detail speculative
theories of possible infringement. Fresenius is simply asked to detail the very
non-infringement by importation which it says it intended to set out by using these
code words in the first place.
[52]
In my respectful view, Fresenius was obliged to set
out in its “detailed statement” that the new drug
is manufactured outside and imported into Canada. Fresenius should also have
set out the legal basis of non-infringement by importation. The obligation to
set out a detailed statement is conjunctive – both facts and law must be
detailed. Failure to detail the factual basis put Fresenius offside the
regulations; so did its failure to provide details of its legal basis.
[53]
Nor do I agree that these code words satisfy the
purposes of the NOA in terms of it being sufficient to make Bayer fully aware
of the grounds on which the generic claims Bayer’s patent would not be
infringed if a NOC is issued: AB Hassle at para 19; Pfizer at para
4. Although it was Fresenius’ submission, there is no evidence to support the proposition
that Bayer, let alone anybody in the field, should have known from these words
that Fresenius’ new drug was manufactured and processed outside and imported
into Canada. I am not persuaded that Bayer could confidently decide if
Fresenius’ new drug would infringe (AB Hassle at para 19), let alone know
that it would be imported or manufactured outside Canada. Nor am I satisfied in
this case that Bayer knew or should have known that Fresenius was putting the Saccharin
Doctrine into play: AB Hassle at para 19.
[54]
For these reasons, in my respectful view, this
NOA was not sufficiently detailed.
(5)
Should Bayer have brought a motion to determine
if Bayer could argue the NOA was insufficiently detailed if the new drug was
imported?
[55]
Fresenius argued that Bayer should have brought
a motion to determine whether the NOA was sufficiently detailed, or what was
meant by the code words. I disagree for several reasons. First, it was
Fresenius’ legal duty to provide a “detailed statement”,
which it did not do. Secondly, first persons have a short timeframe (45 days)
within which to decide to challenge the issuance of a NOC which makes the
bringing of such a motion, (presumably if that is possible prior to filing a
prohibition application) difficult if not impossible. Most importantly, however
and in my respectful view, requiring Bayer to guess at the factual and legal
bases for non-infringement, launch a prohibition proceeding, and then move to
find out what the NOA meant, turns the regulatory requirement on its head. Such
a process relieves the second person of its direct regulatory duty and instead imposes
a new obligation on first persons. In my view, the whole purpose of the PM (NOC)
Regulations’ requiring a “detailed statement”
is to avoid just such guesswork, ambiguity and complexity. The obvious solution
was for Fresenius to do that which the PM (NOC) Regulations required it
to do in the first place, and which Fresenius failed to do, namely, to provide
a “detailed statement”. As said by the Federal
Court of Appeal in AB Hassle v Canada (Minister of National Health and
Welfare) (2000), 7 CPR 272 (4th) at para 21:
[21] … a second person must do what, in
fact, paragraph 5(3)(a) requires, i.e. set forth in the detailed statement “the
legal and factual basis” for the paragraph 5(1)(b) allegation and to do so in a
sufficiently complete manner as to enable the patentee to assess its course of
action in response to the allegation.
(6)
Is post-NOA disclosure allowed under Justice
Snider’s decision in Pfizer-Atorvastatin?
[56]
Fresenius relied heavily on Pfizer-Atorvastatin,
a decision of Justice Snider, for the proposition that it did not need to
disclose either the facts of importation and manufacture abroad, or the legal
basis of its non-infringement by importation argument in its NOA. Fresenius
says it was enough to disclose importation to Bayer, not in the NOA, but only
after Bayer filed its Notice of Application and signed a confidentiality
agreement. I disagree for several reasons.
[57]
In my respectful view, a proper analysis of this
argument starts with Justice Snider’s reasons in Pfizer-Atorvastatin, where
the Court stated:
[32] Both parties referred to the following
criteria set out in Pfizer Canada Inc. v. Apotex Inc., (2004), 31 C.P.R.
(4th) 214 (F.C.T.D.), 2003 FC 1428 at para. 32, aff’d (2004), 38 C.P.R. (4th)
400 (F.C.A.):
In assessing the adequacy of the NOA,
the following guidance can be taken from a number of decisions of the Federal
Court of Appeal, including Bayer AG v. Canada (Minister of National Health
and Welfare) (1993), 51 C.P.R. (3d) 329 (F.C.A.); Glaxo Group Ltd. v.
Canada (Minister of National Health and Welfare) (2000), 6 C.P.R. (4th) 73
at 81 (F.C.T.D.), aff'd (2001) 11 C.P.R. (4th) 417 (F.C.A.);
−
A bald assertion of non-infringement is
insufficient.
−
It is permissible for the second person to
withhold certain information regarding its formulation until subsequent to a
confidentiality order being in place.
−
The NOA will be adequate if further disclosure
elaborates on the basis for which the allegation of non-infringement was made
such that there is sufficient evidence upon which to evaluate the allegation.
[58]
Fresenius relies on the second and third bullets
set out above. I will deal with each.
(7)
The Second Bullet in Pfizer-Atorvastatin
[59]
The second bullet says certain aspects of a
non-infringement argument regarding a drug’s formulation may be left out of a NOA
provided they are subsequently revealed after the first person starts a
prohibition proceeding and signs a confidentiality agreement:
- It is permissible for the second person to
withhold certain information regarding its formulation until subsequent to a
confidentiality order being in place.
[60]
At first blush, to be frank, this allowance may appear
to offend the regulatory and jurisprudential requirement for a “detailed statement”, because the starting principle
is that a second person is under a duty to set out a detailed statement of its facts
and legal issues on which it bases its non-infringement arguments; thereafter that
detailed statement may not be expanded on.
[61]
On the other hand, one may see that there may be
legitimate business confidentiality issues concerning the formulation of a
proposed new drug that may militate in favour of allowing a second person to
withhold some drug formulation matter that is truly confidential. But confidentiality
claims made in a NOA, with concomitant promises to disclose additional
information if a prohibition proceeding is commenced, should not be permitted
to withhold too much without offending the wish of the legislator who, it is
noted, made no such exception. Without a limit on what a second person may
conceal from the first, a NOA could become a sort of Trojan horse. That of
course would be unfair to the first person who counts on the second person to
make the full and adequate disclosure discussed above. Also, care should be
given to the construction of confidentiality claims in a NOA because they have
the obvious potential to undo much of what the legislator intended in enacting
the PM (NOC) Regulations in the first place.
[62]
It is my respectful view Justice Snider balanced
the competing interests in the need to keep confidential formulation matters confidential,
on the one hand, with the second person’s undoubted duty to provide detailed disclosure
in the “detailed statement” per the PM (NOC)
Regulations. That is why, in my respectful view, Justice Snider limited the
second bullet to the new drug’s formulation, i.e., to “certain
information regarding its formulation”. Restricting claims of confidentiality
to matters of “formulation” is understandable where
it relates to truly confidential drug formulation matters. However, I am unable
to see how protecting a confidential “formulation”
of a new drug allows a party to then claim confidentiality over the fact a drug
is manufactured offshore and imported into Canada. If it were so,
non-infringement by importation, as an issue in prohibition proceedings, would never
be disclosed in a NOA. In my view, that would neither accord with the
regulatory duty to provide a “detailed statement”,
nor the case law discussed above. I should add that Justice Snider’s
analysis and restricted view of what may be withheld was affirmed by the
Federal Court of Appeal through its approval of the reasons of Justice
Gauthier, as she then was, referred to earlier: Eli Lilly and Company v
Apotex Inc, 2009 FC 991 at paras 327 and 355, upheld in Eli Lilly
and Company v Apotex Inc, 2010 FCA 240 at para 19. I also note that Justice
Snider’s decision in Pfizer Canada Inc v Apotex Inc, 2003 FC 1428 at
para 32 which Her Ladyship quotes and relies upon in Pfizer-Atorvastatin,
was subsequently conceded to be correct by counsel and as such affirmed by the
Federal Court of Appeal in 2004 FCA 398 at para 25.
[63]
I turn now to the actual claim for
confidentiality made in Fresenius’ NOA. It states:
Specific details of the PPC formulation,
API and product will be provided under a confidentiality agreement.
[emphasis added]
[64]
In my respectful view, this claim is impermissibly
broader than that allowed by Justice Snider in the second bullet in Pfizer-Atorvastatin,
which carefully balanced and restricted such claims to matters of “formulation” in the following terms:
It is permissible for the second person to
withhold certain information regarding its formulation until subsequent
to a confidentiality order being in place.
[emphasis added]
[65]
In my respectful view, Fresenius’ claim to
confidentiality in this NOA is impermissible because it reaches further than what
Justice Snider allowed and approved as noted above. Fresenius cannot rely on
the second bullet in Pfizer-Atorvastatin to justify its failure to
disclose manufacture offshore, importation and non-infringement by importation.
(8)
The Third Bullet in Pfizer-Atorvastatin
[66]
I am also unable to accept Fresenius’ argument that
the third bullet in Justice Snider’s decision in Pfizer-Atorvastatin relieves
Fresenius of its regulatory duty to set out the manufacture offshore,
importation and non-infringement by importation in its “detailed
statement”. First, it is very clear that adding facts and legal issues
not contained in the NOA after the fact is the exception and not the rule.
Second, while further disclosure may be allowed after a NOA is filed, Justice
Snider’s third bullet said that could only be done where after the fact
disclosure is ‘elaborative’, i.e., where it “elaborates
on the basis for which the allegation of non-infringement was made”:
The NOA will be adequate if further
disclosure elaborates on the basis for which the allegation of
non-infringement was made such that there is sufficient evidence upon which to
evaluate the allegation.
[emphasis added]
The key word is “elaborates”.
[67]
Once again, Justice Snider took a measured, balanced
approach to the issue of post-NOA disclosure. It is not just anything that may
be disclosed post-NOA; only ‘elaborative’ facts and legal arguments may be
disclosed post-NOA.
[68]
The difficulty Fresenius faces with its NOA in
this case is that its NOA neither refers to manufacture offshore nor to
importation, nor to non-infringement by importation. There is nothing in that
regard on which Fresenius could “elaborate” in
post-NOA filings. It is one thing to elaborate on an allegation of
non-infringement detailed in the NOA; it is another to add a new basis of
non-infringement for the first time after a prohibition proceeding is commenced.
Therefore I conclude that Fresenius is not assisted by the third bullet.
(9)
Pleadings Issues
[69]
The discussion of non-infringement by
importation in this case raises pleadings issues in another sense. Fresenius
says Bayer may not complain about non-infringement by importation because Bayer
was aware of but did not raise infringement by importation in either its
original or amended Notice of Application, in its evidence, or in its
Memorandum of Argument. I am unable to accept these submissions. Having made
inadequate disclosure of the point in the first place, Fresenius cannot be
heard to complain that Bayer failed to respond. It was Fresenius that filed a NOA
without the required full and complete “detailed
statement”. In any event, I note that Bayer did refer to infringement by
importation albeit fleetingly in its Memorandum, where at para 88 it stated
that “a claim to a product is infringed even when it is
manufactured offshore”. Indeed, Bayer gave as authority for that
proposition both Monsanto and Pfizer-Atorvastatin.
[70]
This case evolved over time. Fresenius’ NOA at
best gave clues to non-infringement by importation but failed to comply with
the Regulations. Bayer’s reference to importation was limited to a clause in a
sentence in para 88 of its Memorandum. Fresenius expanded on importation in its
Respondent’s Memorandum by alleging in some detail why in its view Bayer could
not establish infringement by importation. Both parties filed Outlines of
Argument prior to the hearing in which both sides dealt in detail with non-infringement
by importation and the Saccharin Doctrine. Also at the hearing, both
counsel dealt in detail with non-infringement by importation and the Saccharin
Doctrine.
[71]
Fresenius did not come out and give a detailed
statement regarding importation and non-infringement by importation; instead it
alluded to the doctrine by use of legally insufficient code words. Bayer did
not address non-infringement by importation in its Memorandum, except by claiming
(correctly) that “a claim to a product is infringed
even when it is manufactured abroad.” Bayer says that Fresenius should
not be allowed to argue non-infringement by importation because it was not
raised in the NOA (which it was not). Fresenius says Bayer should not be
allowed to address infringement by importation because it was not adequately
raised in Bayer’s Memorandum. In my view, all of this could and should have
been avoided; Fresenius should have done what the Regulations required it to
do, and detail in its NOA its allegation of non-infringement by importation.
(10)
Must Bayer Prove Prejudice or Surprise by
Affidavit?
[72]
Fresenius further alleges that to establish Fresenius’
NOA is defective, Bayer must provide affidavit evidence establishing it was surprised
or prejudiced. However, on review, the cases cited by Fresenius in support of
this argument (Astrazeneca AB v Apotex Inc, 2005 FCA 183; Aventis
Pharma Inc v Apotex Inc, 2006 FCA 64; Pfizer Canada Inc v The Minister
of Health, 2007 FC 642) lay down no such general rule. Nor am I able to see
how an adequate NOA may be rendered inadequate through a first person’s
affidavit of surprise and prejudice. It seems to me that a NOA is either
adequate or it is defective. In my view, adequacy of a NOA is not established
by the first person’s subjective opinion one way or the other; it is determined
objectively by the Court by the application of legal principles to the facts.
(11)
Who Should Raise Non-infringement by Importation:
The First Person or the Second?
[73]
Fresenius further argues that simply alleging in
its NOA that neither the product nor the API used infringe the patent is
sufficient. Fresenius says it had no obligation to raise non-infringement by
importation. As can be seen from the foregoing analysis, I disagree. At the
time it drafted its NOA, Fresenius was the only party that knew its proposed
new drug was manufactured abroad. Fresenius alone knew its offshore produced
drug would be imported. In this case, and in my respectful view, the
non-infringement by importation issue would have been obvious to Fresenius. It
was hardly a speculative issue. Only Fresenius had reason to know that it would
or likely would have to rely on non-infringement by importation in prohibition
proceedings. In my view, non-infringement by importation were very real possibilities,
neither speculative nor in any way remote in this case.
[74]
Fresenius says it had no obligation to detail
either the factual or legal basis of non-infringement by importation. This
however is also inconsistent with its argument that in fact it did just that,
albeit by use of code words. Fresenius’ obligation to detail non-infringement
by importation was particularly strong in this case where it actually set out
to do just that. In my view, Fresenius knew it had to detail the basis for non-infringement
by importation, failed to meet its statutory obligation, and now faces the
consequential issuance of prohibition.
(12)
Confidentiality of Manufacture and Processing Abroad
[75]
Fresenius finally argues that the fact its new drug
is manufactured abroad for importation into Canada is confidential, and
therefore could not be disclosed in the NOA. I agree the case law supports non-disclosure
of the “formulation” of a new drug that
otherwise must be in the required “detailed statement”;
this was established by Justice Snider in Pfizer-Atorvastatin. However,
I cannot accept the specific claim to confidentiality in this case for two
reasons. First, there is no evidence on which to base such a finding of
confidentiality; such a finding would be speculative on my part. Secondly, when
Fresenius says Bayer would or should have known Fresenius was alleging
non-infringement by importation, it is of course saying that all of Bayer’s
similarly-situated competitors also would or should have known its proposed new
drug was manufactured abroad for importation into Canada. Indeed, Fresenius
alleged that anybody in the field would know from its NOA that its new drug was
manufactured offshore and imported. I also note the fact that the entire NOA
including the code words “trivial and merely incidental”
is in the public domain, i.e., the public version of the Application Record in
this Court file. This assertion that offshore manufacture and importation
cannot be sustained on these facts.
[76]
The conclusion that the NOA is defective
disposes of this application; the Minister of Health may not issue a NOC where
an applicant for a new drug by comparison has failed to comply with its duty to
file the detailed statement required under subparagraph 5(3)(b)(ii) of the PM
(NOC) Regulations. Therefore, Bayer is entitled to the prohibition order it
seeks.
[77]
That said, the parties devoted a great deal of
time and attention to the issue of whether or not Bayer established that the
NOA was not justified in terms of non-infringement or non-infringement by importation.
Therefore, I will also address this issue.
Issue 2: Whether Bayer has shown on a balance of
probabilities that Fresenius’ Notice of Allegation is not justified
(1)
The Evidence
Experts’ Testimony and Evidence
[78]
The parties agree there is no issue as to expert
qualification in these proceedings. However, the parties argue and I agree that
the Court must make credibility determinations concerning the evidence and opinions
provided by the experts. I will discuss each expert in turn.
Dr. Adam Matzger – Bayers’
Expert
[79]
Dr. Matzger is a Professor of Chemistry and of
Macromolecular Science and Engineering at the University of Michigan. He
obtained a Ph.D. in structural and organic chemistry in 1997 and has over 120
publications in peer reviewed journals to his credit. Dr. Matzger edits the
academic journal “Crystal Growth and Design”,
and he has co-founded a company to provide analytical services, including
solid-state chemical characterization of materials.
[80]
Dr. Matzger submits he conducted a number of
experiments and in doing so replicated what Bayer claims was a “key” stage of the Fresenius process, […………..Redacted…………
………..………………………………………………………………]. He said his experiment showed the Fresenius
process yields Bayer’s patented moxifloxacin hydrochloride monohydrate [the
Monohydrate] as an intermediate during this step of the manufacture of the
moxifloxacin hydrochloride [Fresenius-moxifloxacin] Fresenius is seeking
approval to market.
[81]
Dr. Matzger construed the patent as requiring an
x-ray powder diffraction [XRPD] with a band at 2θ = 26.7°, and by Carbon-13
nuclear magnetic resonance [C-NMR] with a characteristic peak at 168.1 ppm. “2θ” is pronounced “two
theta” and refers to the angle of incidence of the diffracted x-rays. XRPD
analysis is especially powerful to examine and characterize the structure of
crystalline materials. Crystalline materials may appear in various structures,
or “polymorphs”, for which the XRPD testing is
diagnostic.
[82]
Dr. Matzger’s evidence was that the 418 Patent
disclosed a new monohydrate form of the Monohydrate which had a previously
known anhydrous form. The Patent teaches that storage of the anhydrous form
could be problematic due to the instability of the crystal structure. The
Patent teaches that physical instability of anhydrous moxifloxacin
hydrochloride results from changes in its crystal structure when stored at
ambient humidity or when placed in aqueous suspensions.
[83]
The 418 Patent teaches that the Monohydrate has
increased stability and is better for the preparation of stable pharmaceutical
products. The Monohydrate can be characterized by XRPD with a band at 2θ =
26.7°, and by C-NMR with a characteristic peak at 168.1 ppm.
[84]
While Claim 1 of the Patent requires a
monohydrate which has a “characteristic peak” at
168.1 ppm in the C-NMR spectrum, and a “band” at
2θ = 26.7° in the XRDP analysis, the parties confirmed there is no
difference between a “peak” and a “band” and that in fact the terms “peak” and “band”, are
used interchangeably. This was indeed the case: peak and band are used
interchangeably in the evidence and in argument.
[85]
Dr. Matzger is the only expert in this
proceeding who actually conducted experiments and tests of the chemicals
obtained, which tests were based on his reconstruction of the ANDS and components
of the Drug Master File [DMF] provided to him through Fresenius and by the offshore
third party API manufacturer. Fresenius’ witness, Dr. Brittain, conceded Dr.
Matzger’s tests were faithful except for the fact they were done on a reduced
scale compared to the actual manufacturing process.
[86]
Dr. Matzger obtained his results by performing
two experiments replicating scaled-down stages of the Fresenius process where
there was a hypothesized formation of the Monohydrate, with ratios of 1/8000
and 1/4000. As hypothesized, Dr. Matzger said he had identified the presence of
the Monohydrate through XRPD testing in his first experiment. No other testing,
including C-NMR testing, was conducted on the samples from the first
experiment. In the second experiment, Dr. Matzger doubled the scale of his
experiment, thereby creating and collecting a greater volume of the sample,
which he also found to be the Monohydrate. On this sample he performed both
XRPD and C-NMR testing.
[87]
While in two of the experiments he ran, Dr.
Matzger did not find the Monohydrate, Dr. Matzger explains the Monohydrate was
formed in two other experiments at this [..Redacted..] step. According
to Dr. Matzger, the Monohydrate transforms into another compound, […. ………..….Redacted…………………………………..],
as the reaction progresses. The use of the Monohydrate is transient as an
intermediary. Dr. Matzger does not state that the Monohydrate would not be
produced at other stages, though this stage is the only one for which he
performed experiments. Dr. Matzger also explained the intensity of the bands is
not relevant for identifying the compound, so long as said bands are present in
the band pattern. Dr. Matzger indicated that in order to properly identify a
compound from the XRPD spectrum, all of the bands should match. Dr. Matzger
posits all the bands from the XRPD matched. He explained the discrepancies and
lack of clarity and resolution within the peaks were due to [……. Redacted…
………………………………………………………………………………………]. There is only Dr. Matzger’s own
testimony as an expert in support of the [..Redacted..].
[88]
From the second experiment, Dr. Matzger was able
to test the product on the C-NMR spectrum. In this test, there was a “signal” at 168.1 ppm, which to Dr. Matzger confirmed
the presence of the Monohydrate. This result was not as resolved [….....Redacted….…].
Dr. Matzger explained this lack of resolution was due to […..….….Redacted……..……].
A signal, at a greater than 3:1 signal to noise ratio, was nonetheless observed
at 168.1 ppm. The United States Pharmacopeia [USP] specifies a peak may be
found at a ratio of 2 or 3 to 1 signal to noise ratio. Dr. Matzger deposed:
84. I note that Claim 1 of the 418 Patent
specifies an XRPD diffractogram with a peak at 2θ = 26.7 ppm and a 13C-NMR
spectrum with a peak at 168.1 ppm. As I explained above, my experiments
demonstrated a peak at 2θ = [..Redacted..] which is within
an acceptable range of 0.1 degrees. This element of the claim is therefore
satisfied.
85. My experiments also demonstrated that
PPC produces moxifloxacin hydrochloride monohydrate that yields a 13C-NMR
spectrum that has a signal at 168.1 ppm. In my opinion, this spectrum is
consistent with the presence of moxifloxacin hydrochloride monohydrate.
86. It is important to note that the sample
I analysed under 13C-NMR[……………………………Redacted………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………..].
[emphasis added]
[89]
Even in his reply affidavit, Dr. Matzger refers
to the intensity at 168.1 ppm and falls short of concluding that there is a
peak or band at 168.1 ppm in the C-NMR spectrum:
25. The graph reproduced at paragraph 143 of
the Brittain Affidavit clearly shows that there is signal at 168.1 ppm
with a greater than 3:1 signal to noise ratio. Dr. Brittain has improperly
considered the noise to be a lack of signal and did not account for the fact
that [……………………….Redacted…………………… …………………………].
(…)
41. In response to paragraphs 62 and 63 of
the Zaworotko Affidavit, it is no surprise that the peak at 168.1 ppm is not
very resolved since [……………………………. Redacted…………..
……………….…………………………………………………….. …………]. However, had there been an absence of intensity
at 168.1 ppm, I would have been less confident that the monohydrate was in fact
present.
[emphasis added]
Dr. Brittain – Fresenius’ Expert
[90]
Dr. Brittain has over 40 years of experience
with the chemistry, design, and development of solid and aqueous drug
formulations. The author of over 200 publications on the characterization of
solid-state pharmaceutical substances, Dr. Brittain is highly skilled in the
art of performing and interpreting the results of XRPD analyses, having
performed 5 to10 such analyses per week for over ten years, totalling 2,500 to
5,000 XRPD analyses. Dr. Brittain also had extensive experience as a member of
the USP, with a focus on physical test methods for pharmaceutical substances,
including XRPD. Dr. Brittain taught various chemistry topics as a tenured
university professor. Dr. Brittain also worked in private industry in drug
development.
[91]
[…………………………………………..Redacted……………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………….]. He further lists forms of moxifloxacin hydrochloride in crystal
form which have been listed in several patents abroad. These forms are not
present in the Cambridge Structural Database [CSD]. Dr. Brittain asserts part
of Dr. Matzger’s error in identifying the substance he analyzed was Dr.
Matzger’s faulty underlying assumption that only three forms of moxifloxacin
hydrochloride exist (anhydrous, monohydrate and methanolate/hydrate). If the
universe of possibilities had been properly expanded, as the presence of other
various patented forms suggests, Dr. Matzger may have determined that the
moxifloxacin compound in his experiment was not the Monohydrate, but rather one
of the many other existing forms of moxifloxacin disclosed in other patents.
[92]
Based on the data collected by Dr. Matzger, Dr.
Brittain concluded the Fresenius-moxifloxacin and the process used for its
manufacture do not fall within the scope of the 418 Patent.
[93]
Dr. Brittain states that in an XRPD pattern,
usually a match to a crystal form and substance will be found with the ten most
intense peaks on the XRPD spectrum. In this connection, Dr. Brittain indicated
his approach followed that of the USP, which states: “It
is generally sufficient to scan past the ten strongest reflections identified
in the Powder Diffraction File.” In the data from Dr. Matzger, Dr.
Brittain attempts to match the ten most intense peaks from the spectrum in the
418 Patent to peaks in Dr. Matzger’s data set, but he finds at most only [Redacted]
of the ten peaks would be present in Dr. Matzger’s submitted data sets. This,
Dr. Brittain says, indicates that the compound is not the Monohydrate posited
by Dr. Matzger.
[94]
Dr. Brittain also explains how he attempted to
match the peaks in the context of significant noise in the samples. For
example, in the C-NMR, the scale in Dr. Matzger’s presentation was expanded to
such an extent that small features looked like peaks. This does not achieve a 2
or 3 to 1 signal to noise ratio necessary to find the presence of a peak. Dr.
Brittain explains the signal identified at 168.1 ppm by Dr. Matzger is merely
part of a sloping baseline and cannot be deemed a peak, let alone a
characteristic peak.
[95]
Dr. Brittain also explains that […………………Redacted………………………………..
……………………………………………………………….………….]. He did not adhere to Dr. Matzger’s
explanation of [………Redacted…………….].
Dr. Zaworotko – Fresenius’ Expert
[96]
Dr. Zaworotko is the Bernal Chair of Crystal
Science and Science Foundation of Ireland Research Professor in the Department
of Chemical and Environmental Sciences at the University of Limerick, Ireland.
Dr. Zaworotko has expertise in the fields of crystallization, x-ray
crystallography, crystal engineering, crystal packing, polymorphism and
hydrates. He has published over 320 peer-reviewed journal articles.
[97]
Dr. Zaworotko puts forward a hypothesis of
isostructural channel solvates, which would provide an alternative explanation
to Dr. Matzger’s results with an unresolved peak at 168.1 ppm. In this hypothesis,
Dr. Zaworotko explains that Dr. Matzger likely did not obtain [….. ………………………Redacted……………………………………………………………………………..],
as advanced by Dr. Matzger. Instead, Dr. Zaworotko said Dr. Matzger probably
had a continuum of channel solvates, with a varying content of [……….Redacted……]
within the crystal lattice of the moxifloxacin hydrochloride. Dr. Zaworotko did
not conduct any testing of his own; notwithstanding he advances this continuum
of channel solvates could explain the unresolved peaks found in Dr. Matzger’s
data.
[98]
Dr. Zaworotko had few areas of agreement with
Dr. Matzger.
Other Affidavit Evidence
Mira Cameron
[99]
Ms. Cameron affirms the NOA was sent to Bayer on
May 5, 2014. Bayer first filed a Notice of Application with this Court on June
18, 2014. On July 16 and 17, Fresenius (then PPC) provided Bayer with documents
from its ANDS for the PPC product. On July 31, 2014, Bayer filed an amended
Notice of Application. Fresenius made further productions on August 19, 2014.
[100] Ms. Cameron set out the timeline for the proceedings before this
Court in the remainder of her affidavit.
Josephine Holmes
[101]
Ms. Holmes is Senior Manager, Regulatory Affairs
at Fresenius. Ms. Holmes provided evidence relating to the moxifloxacin product
for which Fresenius is seeking regulatory approval in Canada.
Bruce Jordan
[102] Mr. Jordan is Senior Manager, Commercial Supply Chain at Fresenius
Kabi US, LLC, a US company that is an affiliate of Fresenius. Mr.
Jordan provided evidence relating to the development, manufacturing, and
importation of Fresenius-moxifloxacin.
Sabrina Del Rosso
[103] Ms. Del Rosso is a legal assistant to Gilbert’s LLP, lawyers for the
Respondent. Ms. Del Rosso affirms some of the ANDS submissions were voluntarily
produced to Bayer’s lawyers on July 16, 2014. The entire ANDS was produced on
August 19, 2014, in CD form. Fresenius took steps starting on September 20,
2014, to obtain information contained in the Drug Master File from the API
manufacturer abroad. Documents obtained from the API manufacturer were sent to
Bayer on November 6, 2014 and on November 11, 2014. Although more efforts were
made to obtain further information from the third party, the API manufacturer,
no further productions were obtained.
IV.
Submissions of the Parties
Applicants
[104] Bayer asserts Fresenius’ allegation of non-infringement is an
inadequate, even bald, assertion that it will not use the Monohydrate in its
manufacture of the Fresenius product or of the API in its product. Although
Fresenius refused to produce samples from its process, Dr. Matzger was able to
reproduce a key stage of the Fresenius process. The evidence shows the
non-infringement allegations are demonstrably false.
[105] Bayer asserts Claims 1, 2, 8 to10, 12 and 14 of the 418 Patent.
These go to the independent claim (Claim 1), the preferred prismatic crystal
form (Claim 2), the medicament comprising the Monohydrate along with a
pharmaceutically acceptable diluent or carrier (Claim 8) for use in the
treatment of bacterial infections (Claim 9), or an antibacterial composition
comprising the Monohydrate of Claim 1 or Claim 2 with a suitable diluent or
carrier (Claim 10), used to treat bacterial infections (Claim 12). Claim 14
recites a use of the Monohydrate of Claim 1 or Claim 2 in the preparation of a
medicament for treatment of bacterial infections.
[106] As discussed under Issue 1 above, Bayer alleged that the NOA was defective
on the grounds Fresenius failed to adequately disclose, in its NOA, its
allegations that the manufacturing process took place abroad, that Fresenius’
new drug was imported into Canada, and that bringing the Fresenius product into
Canada constituted non-infringing importation. Bayer also alleged the NOA did
not provide sufficient information to determine whether PPC’s allegation of
non-infringement of the claims of the 418 Patent is justified. Finally, Bayer
argued the PPC letter did not provide any basis for raising the claimed Gillette
Defence (named after Gillette Safety Razor Company v. Anglo American Trading
Company (1913), 30 R.P.C. 465) in the context of non-infringement.
[107] Bayer argues the evidence of Fresenius’ experts should be discounted
because they only criticized Dr. Matzger’s experiments instead of conducting
their own testing. Bayer further argues that Fresenius’ failure to produce
samples of intermediates obtained during the manufacturing process impeded
Bayer’s ability to adduce proper evidence and conduct proper testing to more
fully and conclusively demonstrate to the Court that Fresenius’ allegation of
non-infringement was not justified. Bayer suggests an adverse inference should
be drawn against Fresenius on this point.
[108] Although Fresenius did not provide samples of intermediates obtained
during the manufacturing process or of the active pharmaceutical ingredient,
Dr. Matzger performed two experiments replicating scaled-down stages of the
Fresenius process where there was a hypothesized formation of Bayer’s patented Monohydrate.
As proposed, Dr. Matzger testified he identified the presence of the Monohydrate
through XRPD testing in his first experiment. He found that the Monohydrate was
formed but chemically transformed into another compound, [.. ……………………Redacted…………………………….],
as the reaction progressed. Dr. Matzger also explained the intensity of the
peaks on the XRPD pattern is not relevant to identifying the compound, so long
as said peaks are present in the peak pattern. Dr. Matzger’s first experiment
yielded results containing some irregularities. Dr. Matzger felt confident
these were due to the [……………………….Redacted……………………………………].
[109] In the second experiment, Dr. Matzger doubled the scale of his first
experiment, thereby creating and collecting a greater volume of the product.
From this second experiment, he was able to test the product on the XRPD and on
the C-NMR spectra. In the C-NMR test, there was a signal at 168.1 ppm, which
confirmed the presence of the Monohydrate. This result was not as resolved [………Redacted…………].
Dr. Matzger explained this observation was due to [… …………………..Redacted…………………..].
A signal, at a greater than 3:1 signal to noise ratio, was nonetheless observed
at 168.1 ppm. The USP specifies a peak may be found at a ratio of 2 or 3 to 1
signal to noise ratio.
[110] Bayer submits the Fresenius experts did not conduct their own
experiments but simply criticized Dr. Matzger’s methodology and test results.
Bayer characterizes this approach as “mud-slinging”,
arguing this should not be encouraged where there are allegations by Fresenius’
experts that Dr. Matzger smoothed the data or otherwise did not analyze it
properly. Moreover, Bayer argues there are no other monohydrate forms of the
moxifloxacin, contrary to Fresenius’ experts’ opinions. An appropriate source
to establish which crystal forms exist for this chemical is the CSD, as opposed
to the literature which is plagued by inaccurate reporting on alleged but unproven
“novel” compounds by patentees in their patent
filings.
[111] Bayer alleges that Fresenius’ experts, in context, wrongfully
criticized Dr. Matzger’s procedures. For example, Dr. Matzger was unreasonably
criticized by Dr. Zaworotko for failing to indicate in his notes whether he had
ground the sample before testing. Dr. Matzger explained he would have kept a
record if he had ground his sample before testing; this step being critical in
a potential phase change of the sample. Dr. Zaworotko would not yield in his
criticism.
[112] Bayer argues that infringement occurs where a patented substance is
produced at an intermediate stage of manufacture, even if the intermediate is
not in the final drug product: Abbott Laboratories v Canada (Minister of
Health), 2006 FCA 187 at paras 15-17; Abbott Laboratories v Canada
(Minister of Health), 2007 FCA 73 at para 4. Here, Fresenius infringed the
418 Patent by producing the Monohydrate in its manufacturing process, as
demonstrated with certainty by the expert evidence tendered by Dr. Matzger.
[113] Bayer cites the Supreme Court of Canada to argue that the main
purpose of patent protection is to prevent others from depriving the inventor,
even in part and even indirectly, of the monopoly that the law provides: only
the patentee is entitled to the full enjoyment of the monopoly conferred. The
Supreme Court also confirmed that a claim to a product is infringed even when
it is manufactured offshore: Monsanto Canada Inc v Schmeiser, 2004 SCC
34 at para 43; Pfizer-Atorvastatin at paras 87-90.
[114] Bayer notes that Fresenius’ experts went to great lengths to point
out that the presence of the peaks identified in Claim 1 do not, in and of
themselves, demonstrate that the product is the Monohydrate. Bayer asks the
Court rather to consider all of the experimental data to determine the nature
of the product.
Respondent - Fresenius
[115] Fresenius first discusses the evidence led by its witnesses, who
consist not only of their expert witnesses but also witnesses who spoke to
Fresenius’ product and API, the third-party manufacturer of Fresenius’ API, and
Fresenius’ efforts to obtain and use non-infringing API. Fresenius advances the
following main arguments to support the justification of the allegation of
non-infringement. First, Fresenius argues Bayer cannot establish infringement
by importation, nor was it properly argued by Bayer. Second, Fresenius submits
the Monohydrate is not used in the process to create the Fresenius product.
Finally and partly as a result of the previous arguments, Fresenius argues its
allegation of non-infringement is justified and Bayer has not met its burden to
establish that Fresenius’ allegation of non-infringement presented in its
notice of allegation is not justified.
[116] Fresenius construes the claim as did Justice Phelan in Alcon
Canada Inc v Cobalt Pharmaceuticals Company, 2014 FC 462 [Vigamox].
In that case, Bayer had attempted to construe the claim as disjunctive. In that
case, Dr. Matzger served as an expert witness for Bayer and did not adduce
evidence on one of the tests mentioned in Claim 1. Justice
Phelan construed the 418 Patent claim at issue in the present case, and found
that based on Dr. Matzger’s evidence, Bayer had not met its burden of adducing
all the evidence relevant to the essential elements of the 418 Patent. Fresenius submits, and Bayer now agrees, this Court should follow
the construction in that case. In Vigamox, this Court stated:
[193] In the prior art, the form of CDCH was
anhydrous. The 418 Patent identifies problems associated with the prior art. In
particular, the anhydrous form is hygroscopic and absorbs water under adverse
storage conditions and during pharmaceutical processing, resulting in impaired
dosing accuracy and preparation quality. The invention of the CDCH monohydrate
with improved stability overcame this problem.
…
[196] Claim 1 reads:
A monohydrate of CDCH, of the formula
[Formula (I)]…which has a characteristic peak at 168.1 ppm in the 13 C-NMR
spectrum and a band at 2Θ=26.7 in the X-ray diffractogram.
[197] Claim 1 of the 418 Patent has three
essential elements:
a. the compound
is moxifloxacin monohydrate;
b. the compound
displays a characteristic band in the powder X-ray diffractogram at
2Θ=26.7; and
c. the compound
displays a characteristic peak in the 13C-NMR spectrum at 168.1 ppm.
[198] Cobalt submits that elements (b) and
(c) are conjunctive; both must be established. In contrast, the Applicants
submit that elements (b) and (c) are redundancies and it is only necessary to
determine that a substance is the CDCH monohydrate and displays either the
characteristic band or peak.
[199] Cobalt’s position is made out on the
language of the patent. The use of the conjunctive “and” in Claim 1 linking the
peak and band requirements makes it clear that the substance claimed in the 418
Patent must display both the characteristic peak and the characteristic band.
…
[201] Any issue as to whether increased
stability is also an essential element is a secondary issue. Given the Court’s
ultimate conclusion, it is not necessary to find on this point.
[117] From this claim construction, Fresenius retains the following three
essential, conjunctive elements of the claim:
i
The compound is the 418 Patent moxifloxacin
hydrochloride monohydrate;
ii
A characteristic band at 2θ = 26.7° in the
XRPD pattern; and
iii
A characteristic peak in the 13C-NMR
spectrum at 168.1 ppm.
[118] Fresenius argues Bayer has not established these three essential
elements of the 418 Patent claim. Bayer bears the burden of establishing that
Fresenius’ NOA claim of non-infringement of the Fresenius-moxifloxacin was not
justified. Fresenius qualifies the Monohydrate as necessarily a crystal form,
which could not exist in solution as the Fresenius-moxifloxacin. Further, a
characteristic peak would be one of the most intense peaks on a given spectrum,
which were not observed either on the XRPD or on the C-NMR spectra provided in
Dr. Matzger’s evidence.
[119] Fresenius asserts that the presence of the Monohydrate has not been
established. According to Dr. Brittain, to establish the presence of this
compound, the XRPD would act as a “fingerprint”,
where at least the ten most intense peaks of the XRPD spectrum from the 418
Patent’s Figure 5 would match the data obtained from Dr. Matzger. When analyzing
this data, Dr. Brittain at best only finds [..Redacted..] corresponding
peaks in the first but not the second experiment. However, at least [..Redacted..]
of those peaks are shifted [Redacted] the spectrum, whereas the
remaining peaks are not shifted at all. Dr. Brittain finds the data not to show
characteristic peaks, but rather at best perhaps showing “signals” in the areas identified by Dr. Matzger, and
mere sloping baselines otherwise.
[120] Dr. Brittain also explains that Dr. Matzger’s explanation pertaining
to […..Redacted… ………………………………………………………………………….] is not accurate. […….
………………………Redacted…………………………………………………………………………………………………………………………………………].
[121] Fresenius also explains that Dr. Zaworotko’s evidence provides an
alternative, valid explanation for the lack of clarity in the C-NMR peak that
should have been achieved at 168.1 ppm had the monohydrate appeared in the
crystal formed in Dr. Matzger’s experiments.
[122] In this context, Fresenius says Bayer failed to meet its burden of
establishing any of the three essential claims for the 418 Patent on a balance
of probabilities. Bayer did not establish that the compound was the
Monohydrate; Bayer did not establish the presence of a characteristic band at
2θ = 26.7° on the XRPD spectrum; and Bayer did not establish the presence
of a characteristic peak on the C-NMR spectrum at 168.1 ppm.
[123] Furthermore, should the Court disagree and find that Bayer has
established that the Monohydrate appears as an intermediate in the
manufacturing process, Fresenius argues that Bayer would still have to
establish that the Court has jurisdiction over the infringement by virtue of
the Saccharin Doctrine, or infringement by importation.
[124] In order to find infringement by importation where the potential act
of infringement occurs abroad and in the formation of a patented substance
through an intermediary, the Court must have sufficient evidence before it to
examine the factors as laid out by Justice Snider in Pfizer-Atorvastatin
at para 90. These factors were later adopted in a Federal Court decision by Justice
Gauthier in Eli Lilly and Company v Apotex Inc, 2009 FC 991 at para 326,
which was upheld at the Federal Court of Appeal in Eli Lilly and Company v
Apotex Inc, 2010 FCA 240. These factors must be examined in order to
determine whether there is “a strong link established
between the use of the patented process or product and the product sold into
Canada”: Pfizer-Atorvastatin
at para 91. Pfizer-Atorvastatin at para 90 enumerates the following
factors:
- The importance of the product or process to the final
product sold into Canada. Where the use is incidental, non-essential or
could readily be substituted (such as the Italian scissors example), a Court
might be less inclined to find infringement.
- Whether the final product actually contains all or part of
the patented product. Where the patented product can actually be identified
in the product sold into Canada, there may be a strong case for a finding of
infringement.
- The stage at which the patented product or process is used.
For example, use of a process as a preliminary step of a lengthy production
process may lead to a conclusion that the patentee has suffered little
deprivation.
- The number of instances of use made of the patented product
or process. Where the same patented product is used repetitively through
the production of the non-patented end product, there may be clearer evidence
that the advantage of the patentee has been impaired.
- The strength of the evidence demonstrating that, if carried
out or used in Canada, the product or process would constitute infringement.
On this point, my opinion would be that, where there is ambiguity in the
evidence, the benefit of the doubt should go to the party using the product or
process. This is, perhaps, simply another way of expressing the established
principle that the patentee bears the burden of proving infringement.
[emphasis added]
[125] Bayer did not adduce evidence on any of the factors of the Saccharin
test, except for the already adduced evidence on the Monohydrate. Even if the
Court found that the expert evidence did establish the use of the Monohydrate
in the offshore manufacturing process, this evidence does not establish the
remaining factors of the test as set out above. There is not enough evidence
for the balance of the test to establish infringement by importation.
[126] Fresenius stated that importation could be one reason for the Court
to find that there was no infringement. Fresenius argued its NOA would be
sufficient and valid where the only allegation is that Fresenius did not
infringe. Details on the process in this case were deemed confidential and were
released on July 16, 2014 after a Confidentiality Agreement was entered by the
parties. As discussed and rejected above, Fresenius said that its NOA did not
have to contain confidential information, which according to Fresenius,
included the fact the product was manufactured offshore and imported.
V.
Analysis
Person Skilled in the Art
[127] The parties substantially agree on the qualifications of the person skilled
in the art. Bayer’s Factum describes the skilled person as having education and
experience in producing and identifying different physical forms of
pharmaceutical compounds, polymorphs and solvates, including hydrates and
anhydrates. Such a person has at a minimum, a Ph.D. degree in chemistry or
pharmaceutics and several years of relevant experience in an academic or
industrial setting. The skilled person also has experience in the theory and
practice of interpreting the data from XRPD and solid state C-NMR
spectroscopy. Fresenius agrees with this description, but adds that the
skilled person would also be expected to have experience in interpreting data
obtained by other techniques used for testing, such as thermogravimetric
analysis [TGA], differential scanning calorimetry [DSC], and infrared [IR] spectroscopy,
in order to properly determine the first essential element of Claim 1 in the
patent construction, which asks to find that the Monohydrate be present.
[128] In my view, the skilled person would have a graduate degree in
chemistry or a related field such as chemical engineering or pharmaceutics, experience
with polymorphs; a minimum of one to two years practical experience in the
production of pharmaceutical compounds; ability to understand data from X-ray
powder diffraction and C-NMR spectroscopy; and familiarity with
crystallography.
[129]
Of note, the experts called by both parties
benefit from significant experience in the requisite fields, as well as the
supplementary testing fields identified in the 418 Patent and in Fresenius’
pleadings.
Claim Construction
[130] The parties agree, as do I, that the prior construction of the
patent by Justice Phelan should be adopted by this Court (see Vigamox).
[131] In Vigamox, the second person’s product was in solution form
and did not contain any crystals. The parties agreed that the product to be
imported itself did not infringe the 418 Patent. The issue was whether the process
of making Vigamox used the Monohydrate. Dr. Matzger, a witness in the present
case, also acted as an expert witness for Bayer in Vigamox.
[132] Following submissions by experts and counsel, Justice Phelan
concluded the 418 Patent contains one independent claim and thirteen dependent
claims. Justice Phelan established Claim 1 as the critical claim, and I agree.
Claim 1 reads:
1. A monohydrate of CDH, of the formula
which has a characteristic peak at 168.1 ppm in the 13C-NMR spectrum and a band
at 2[θ] =26.7 in the X-ray diffractogram.
[133] Constructing the claim is a matter of law, and as such, the Court is
not bound by expert evidence or party submissions. Comity is usually present
for such cases where a patent considered in a previously-determined case is at
issue: Apotex Inc v Pfizer Canada Inc, 2013 FC 493; and Pfizer Canada
Inc v Canada (Minister of Health), 2007 FC 446.
[134] In light of these similarities, and absent additional modifying
evidence, I construe the patent claim as did Justice Phelan, with the
conjunctive tests expressed in Claim 1:
i
The compound is a monohydrate of moxifloxacin
hydrochloride;
ii
The compound displays a characteristic band in
the powder X-ray diffractogram at 2θ = 26.7; and
iii
The compound displays a characteristic peak in
the C-NMR spectrum at 168.1 ppm.
Infringement
(1)
Burden of Proof
[135] Once a NOA is submitted to a first person, the allegations contained
therein are presumed to be true. The burden shifts to the first person, in this
case Bayer, to demonstrate that the allegations of non-infringement are not
justified: Pfizer; Vigamox at para 226). Within this burden of
proof, Bayer must therefore show Fresenius’ product infringes each of the three
essential elements of the claim as construed above, and must do so on a balance
of probabilities. Also, “where the allegation is that a
form of crystal will be present at some point in the manufacturing process, it
must be proven that this actually occurs rather than merely raising it as a
possibility”: Vigamox at para 225.
(2)
Was there a Duty by Fresenius to Supply Samples
of Intermediaries in the Fresenius Product and API Manufacturing Process?
[136] Bayer argues that this Court should consider in its weighing of the
evidence that Fresenius did not request or obtain samples of intermediaries
created in the manufacturing process of the Fresenius-moxifloxacin product or
API. This holds for providing these samples to Bayer’s and to Fresenius’ experts.
[137] Fresenius argues it did not owe any duty to produce such samples,
under either the PM (NOC) Regulations or the Production Order granted by
Prothonotary Milczynski.
[138] I am persuaded that Fresenius had no duty to produce samples of
intermediaries. Notably, nowhere in the evidence do I find that Bayer sought
further productions from Fresenius after the consent Production Order was
obtained. I also note that Bayer conceded it had no right to such samples. In
these circumstances, I cannot draw adverse inferences against Fresenius or its
experts.
(3)
Expert Preference
[139]
In light of the experience of Dr. Brittain in
analyzing and interpreting the data for over 2,500 XRPD analyses, and his
extensive experience in helping draft the relevant portions of the USP, I am of
the view that his evidence is to be preferred.
[140] I find Dr. Matzger’s evidence helpful, though I understand he does
not have the same experience and breadth of knowledge on XRPD testing as Dr.
Brittain. For this reason, I give his evidence more weight for the presenting
of test results, but less weight in the analysis and explanation of the
identity of the compound found through his experiments, and in particular, in
relation to XRPD testing.
[141] In light of Dr. Zaworotko’s general failure to set out areas of
agreement with Dr. Matzger in his evidence for the Court, I find he did not fully
comply with the rules of this Court for expert evidence. The Rules state, at subsection
3(b) of the Code of Conduct for Expert Witnesses schedule of the Federal Courts
Rules, that an expert must provide: “(f) in the case of
a report that is provided in response to another expert’s report, an indication
of the points of agreement and of disagreement with the other expert’s
opinions” (emphasis added). For this reason, in general I give his
evidence less weight.
(4)
Number of Forms of Moxifloxacin
[142]
The Cambridge Structural Database [CSD] presents
two forms of moxifloxacin hydrochloride: the methanolate/hydrate and the
monohydrate forms. In addition, the 418 Patent discloses the prior art
anhydrous form.
[143] The experts agree the CSD is a reliable source to prove different
forms. In my respectful view, mere allegations based on other uncontested
patents are not enough to prove the existence of other forms of moxifloxacin
hydrochloride. Therefore, I am unable to accept the evidence of Dr. Brittain to
the effect that there are as many as seven different forms of moxifloxacin.
[144] In my view, for the purposes of the inquiry before this Court, there
are three forms of moxifloxacin hydrochloride: the anhydrous form, the Monohydrate
form and the methanolate/hydrate form.
(5)
Claim Elements
Monohydrate form of
moxifloxacin hydrochloride (or the Monohydrate)
[145] In order to identify the Monohydrate, the experts agree several tests
could be conducted. The XRPD and C-NMR, in conjunction, and taking the entirety
of the spectrum including characteristic peaks, could be sufficiently
diagnostic of the chemical compound and particular crystal structure to
identify the Monohydrate. Similarly, when distinguishing between the anhydrous
and the hydrate forms, thermogravimetric analysis and other analytics could be
useful to the Court.
[146] In this case, the only experimental sample data evidence was
provided by Bayer, which has the burden to establish the use of the Monohydrate
on a balance of probabilities, through its expert, Dr. Matzger. Dr. Matzger
conducted two experiments. In the first experiment, he conducted only XRPD
analyses. In the second experiment, he conducted both XRPD and C-NMR testing.
Dr. Brittain stated, and it is not disputed, that Dr. Matzger’s experiments
faithfully reproduced the API manufacturing process subject to issues with
scaling down at 1/8000 and 1/4000. Any purported scaling down issue was not
developed further and I have not considered it material.
[147] Dr. Brittain and Dr. Matzger agree with the USP, which asserts in its
2006 29th edition (Physical Tests / 941 X-Ray Diffraction at
page 2789): “[i]t is generally sufficient to scan past
the ten strongest reflections identified”. Similarly here, at least the
ten most intense peaks of the XRPD spectrum from the experimental sample should
match with the spectrum provided in the 418 Patent. Though there is minor
disagreement as to the requirements for relative intensities of these peaks,
there is agreement that the location of the peaks is more important than these
relative intensities.
[148] The experts disagree as to the identification of the peaks due to
the shift in some peaks but not in others. In this respect, I favour Dr. Brittain’s
evidence over Dr. Matzger’s, due to his considerably more significant
experience in XRPD analyses and his work in drafting the main guidance
publication on this topic: the USP. According to Dr. Brittain, the best case
for Dr. Matzger’s hypothesis fails. First, only [Redacted] of the peaks
are shifted by [Redacted], whereas the remainder did not shift; this
shift of all the peaks would be expected and necessary for a positive
identification of the Monohydrate. Second, Dr. Brittain explains some of the
peaks identified by Dr. Matzger are barely above the sloping baseline for
genuine peaks in their vicinity. This does not appear to meet the 2 or 3 to 1
signal to noise ratio indicated by the USP.
[149] I note on this issue that Dr. Matzger and Dr. Brittain disagree as
to the method of measuring the noise in order to calculate the signal to noise
ratio. In this connection, I prefer Dr. Brittain’s sloping baseline evidence, given
he has conducted thousands of these types of XRPD analyses and identification
of materials over the years.
[150]
Given the above explanations and absent further
experimentations provided by any expert, I am unable to find on a balance of
probabilities that the Monohydrate is present in the API’s manufacturing
process.
XRPD band at 2θ = 26.7°
[151] Dr. Matzger found there was a peak or band (these terms are
interchangeable) at 2θ = [Redacted], which was within the ±
0.1-0.2° error referenced by the USP.
[152] Dr. Brittain, in sur-reply and in his cross-examination,
intimated this error was usually a shift observed in the entire pattern. That
is, a shift of ±0.1-0.2° would be present in the same direction and in the same
amount for each of the relevant bands. This error is usually only related to
the machine which reads the samples. When only some of the bands are shifted by
said amount, this is not the sort of error as permitted to properly identify
the Monohydrate. This evidence was not contradicted.
[153] Significantly, in this case [Redacted] of the alleged bands
were shifted by [Redacted] while [Redacted] others were not
shifted at all. Equally of note, not all of Dr. Matzger’s experiments produced
a readily identifiable, characteristic band at 2θ = 26.7° ± 0.1-0.2°.
Moreover, the band seen by Dr. Matzger was by no means as intense as the
characteristic peak portrayed in the 418 Patent for the Monohydrate. The
experts agree the characteristic band at 2θ = 26.7° in the 418 Patent is
among the two most intense peaks, whereas the alleged peak in Dr. Matzger’s
evidence at its best sees a peak that has a relative intensity of less than [Redacted]
of the most intense peak. Dr. Brittain in his sur-reply further explains
that the feature identified by Dr. Matzger is merely above the noise level from
the sloping baseline which establishes a [Redacted] signal to noise
ratio. Therefore, it does not meet the signal to noise ratio required to find a
peak.
[154] I find Bayer has not established the presence of a characteristic
band at 2θ = 26.7° in the XRPD spectrum on a balance of probabilities.
Although on the evidence it could be open to me to find the characteristic band
as posited by Dr. Matzger in at least one of the samples, this is not
sufficient for the Court to conclude the presence of the Monohydrate or that a
characteristic band at 2θ = 26.7° in the XRPD spectrum is established on a
balance of probabilities.
Characteristic peak at
168.1 ppm in the C-NMR spectrum
[155]
On this point, I note none of the experts consider
the “signal” or feature identified by Dr.
Matzger to be a “characteristic peak” as
required by the 418 Patent Claim 1 as construed here and in Vigamox.
Significantly, Dr. Matzger himself calls the feature a “signal”,
instead of calling it a “peak”. In a prior
proceeding, Court File T-972-12, Dr. Matzger described a characteristic peak in
these terms:
Even if there was some uncertainty as to the
meaning of a peak at 168.1 ppm in the C-NMR spectrum, the skilled person would
examine Figure 5 of the 418 Patent and would see a prominent feature on the
spectrum for the CDCH monohydrate at 168.1 ppm – this peak is one of the
most intense peaks on the spectrum and would be easily identified.
[emphasis added]
[156] In his affidavit, Dr. Matzger was aware of the requirements of Claim
1, yet the language he uses falls well short of the language requiring a “characteristic peak” at 168.1 ppm. I note the
differences between his conclusions regarding his XRPD analysis (para 84 below)
and that concerning the C-NMR analysis (paras 85 and 86):
84. I note that Claim 1 of the 418 Patent
specifies an XRPD diffractogram with a peak at 2θ = 26.7 ppm and a 13C-NMR
spectrum with a peak at 168.1 ppm. As I explained above, my experiments
demonstrated a peak at 2θ = [Redacted] which is within an
acceptable range of 0.1 degrees. This element of the claim is therefore
satisfied.
85. My experiments also demonstrated that
PPC produces moxifloxacin hydrochloride monohydrate that yields a 13C-NMR
spectrum that has a signal at 168.1 ppm. In my opinion, this spectrum is
consistent with the presence of moxifloxacin hydrochloride monohydrate.
86. It is important to note that the sample
I analysed under 13C-NMR[………………Redacted………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………………].
[emphasis added]
[157] Bayer in effect asks this Court to speculate on the presence of the
characteristic peak at 168.1 ppm [………..….Redacted……..…..]. This is not a
permissible approach for the Court, given the specific language in Claim 1 as
constructed, i.e., all elements are essential. In this connection, I note that
Bayer’s expert evidence provided by Dr. Matzger failed on a similar argument in
Vigamox at paras 216-217, where Justice Phelan held:
216 As regards the third element, no 13C-NMR
data is available regarding the Cobalt Process. The Applicants invite the Court
to infer that it would indicate a peak at 168.1 ppm on the basis that the other
essential elements have been met, that no other moxifloxacin hydrates are known
and that Cobalt has failed to produce any 13C-NMR data to rebut the
inference. Cobalt, naturally, argues against this inference.
217 The
presence of a peak at 168.1 ppm of the 13C-NMR spectrum is an
essential element of the patent which has not been established on the
evidence. I decline to make the inference sought by the Applicants; there is
nothing, other than the 418 Patent itself, which supports the argument that if
moxifloxacin monohydrate has a peak at 2[Theta]=26.7 of the XRPD spectrum, it
will necessarily have a characteristic peak at 168.1 ppm of the 13C-NMR.
There is no evidence that 13C-NMR values can be obtained as a function of XRPD
values. There is no prior or subsequent art attesting to the fact that where
the XRPD peak is present in the monohydrate, the 13C-NMR peak will
necessarily follow. In the absence of such corroborating evidence, I
decline to infer that the 13C-NMR peak is present.
[emphasis
added]
[158] Claim 1 establishes essential and conjunctive elements to be met.
Dr. Matzger suggests the explanation for the lack of resolution in the data is […....Redacted…....].
However, there is no evidence in support of this hypothesis. In addition Dr.
Brittain contradicts this hypothesis.
[159] I find the third essential element of Claim 1 was not established by
Bayer on a balance of probabilities as appearing or being used in the manufacture
of Fresenius’ new drug.
Conclusion on Claim 1 essential elements
[160] Based on the evidence on the essential elements of the claim, I am
compelled to find that Bayer has not discharged its burden to establish on a
balance of probabilities that the Monohydrate appears in the manufacturing of
the Fresenius-moxifloxacin.
[161] The burden is on Bayer to establish all three elements of Claim 1 as
construed. If even one of the elements is not established, I am obliged to conclude
there is no infringement of the 418 Patent. Bayer has not established, on the
balance of probabilities, the presence of the Monohydrate, the characteristic
band on the XRPD spectrum at 2θ = 26.7°, or the characteristic peak on the
C-NMR spectrum at 168.1 ppm. Therefore, I conclude Bayer did not meet its
burden to show the allegation of non-infringement of the 418 Patent was not
justified.
[162] With these conclusions in mind, I now turn to an examination of the Saccharin
Doctrine and its application in this case.
Saccharin Doctrine
[163] The exclusive rights conferred by a Canadian patent are limited
territorially to Canada. Ordinarily, acts occurring outside of Canada cannot
constitute infringement of a Canadian patent: Robert H. Barrigar, Canadian
Patent Act Annotated (2d ed), PA-462 “Place of
Infringement” at s. 54:100; Dole Refrigerating Products Ltd v
Canadian Ice Machine Co (1957), 17 Fox Pat. C. 125 (Can. Ex. Ct.) at para 8.
[164] Generally, infringement occurs where a patented substance is
produced at an intermediate stage, even if the intermediate is not in the final
drug product: Abbott Laboratories v Canada (Minister of Health), 2006
FCA 187 at paras 15-17; Abbott Laboratories v Canada (Minister of Health),
2007 FCA 73 at para 4; Pfizer-Atorvastatin at para 37. However, a different
test is set out when the infringing act occurs abroad. In this case, the
alleged patented intermediate is produced offshore.
[165] Bayer correctly argues that “a claim to a
product is infringed even when it is manufactured offshore”, and in
doing so, relies on Saccharin, Monsanto and Pfizer-Atorvastatin.
However, in Pfizer-Atorvastatin this Court stated that “it is obvious that a Court must proceed cautiously when
either off-shore products or processes are concerned”: Pfizer-Atorvastatin
at para 88.
[166] In determining whether offshore use of a patented product produced
at an intermediate stage of manufacturing the final product to be imported into
Canada, and its subsequent importation constitutes infringement, this Court in Pfizer-Atorvastatin
said it must have regard to such factors as at para 90:
· The importance
of the product or process to the final product sold into Canada (…);
· Whether the final product actually contains all or part of the
patented product (…);
· The stage at which the patented product or process is used (…);
· The number of instances of use made of the patented product or
process (…); and
· The strength of the evidence demonstrating that, if carried out
or used in Canada, the product or process would constitute infringement (…).
[167] In order to find infringement under the Saccharin Doctrine,
Justice Snider also determined that: “[i]n sum, there
must be a strong link established between the [offshore] use of the patented
process or product and the product sold into Canada”: Pfizer-Atorvastatin
at para 91.
[168] Fresenius denies that the Monohydrate is used by its offshore
manufacturer at any stage of the manufacturing process. In light of the
evidence, I found in the prior section that in this case, Bayer failed to
establish otherwise on a balance of probabilities. However, even if this Court accepted
Bayer’s evidence in its entirety and drew the requisite inferences to find the
Monohydrate was present in the manufacturing process, consideration of the Saccharin
factors demonstrates that the alleged infringing use would be insufficient to
establish infringement by importation.
[169] I now turn to reviewing each Saccharin factor in connection
to my findings as to the presence of the Monohydrate.
(1)
The Importance of the Product or Process to the Final
Product Sold in Canada
[170] The Court must examine whether or not the use is incidental,
non-essential or could readily be substituted. I note it is conceded by Bayer
that the end product does not contain the Monohydrate and nor does the API.
Also I note the beginning products are not the Monohydrate but [……………Redacted…………………….].
[171] Dr. Brittain’s evidence is that “[t]o the
extent any moxifloxacin hydrochloride monohydrate might ever be present during
[the foreign] manufacturing process (as suggested by Dr. Matzger), it could
only be transiently present and would ultimately be irrelevant to the final
product.” This expert evidence on the lack of importance of the patented
product to the final product sold into Canada is not contradicted. In addition,
in my view on the facts I have found, any use of the Monohydrate in the
offshore manufacturing of the new drug would be trivial and merely incidental
to the Fresenius-moxifloxacin product sold into Canada.
[172] Counsel for Bayer repeatedly stated that Dr. Matzger reproduced a “key stage” of the multi-step API manufacturing
process. I note the stage reproduced is […………………… ………………………………………Redacted……………………………………………………………………………].
In oral arguments, Bayer argued this step was a “key
stage” in the manufacturing process, such that this part of the Saccharin
Doctrine was met. However, Bayer’s witness, Dr. Matzger, did not give
that evidence; it was counsel’s submission to the Court. While whether the step
at which the patented Monohydrate was produced was a “key
stage” or not is ultimately for the Court to make, and as such, may
certainly be advocated by counsel. I am troubled that despite many
opportunities to do so, the expert assisting the Court did not give that
evidence. Indeed, no expert evidence on this characterization of the step was
adduced. In my view, each step of a chemical reaction may be an irreplaceable “key stage”, but the Court would need expert evidence
to allow it to make this finding. In the circumstances, the Monohydrate’s
production, if it took place at all, which I found it did not, may not be said
to have occurred at a “key stage” as
contemplated by the Saccharin factors.
[173] Therefore, I cannot conclude that the Monohydrate is of particular importance
to the end product to be sold in Canada.
(2)
Whether the Final Product Actually Contains all
or Part of the Patented Product
[174]
The experts and the parties all agree that the
Fresenius-moxifloxacin product will not contain the Monohydrate.
(3)
The Stage at Which the Patented Product or Process
is Used
[175] Justice Snider indicates that this factor should serve to analyze
the patentee’s alleged deprivation if there is use of a process as a
preliminary step of a lengthy production process. The parties disagree as to
the nature of the stage at which the Monohydrate would be produced. If I look
at the entire manufacture on the evidence, the Monohydrate would be used, if at
all, at step [Redacted]. This step occurs within the first half of the manufacture
of the API. Dr. Matzger only identified possible infringement at a single step
of the [Redacted] API manufacture. Following API manufacture, the API is
packaged, sold and shipped to another country, where it is formulated by
Fresenius into a solution product involving multiple additional steps. Taken
together, these facts indicate the step is more of a preliminary stage in a lengthy
process than one of the final steps.
(4)
The Number of Instances of Use Made of the Patented
Product or Process
[176] As just noted, the evidence is that the Monohydrate would be used or
produced once in a multistage process. Bayer argued Dr. Matzger’s experiments
did not preclude the use of the Monohydrate at other steps in the manufacturing
process. Bayer asked the Court to make a positive inference as to the possible
existence of such other infringing steps. I am unable to extend such an
inference because I am unable to go against well-established jurisprudence on drawing
inferences for possible infringement without evidence: Vigamox at para
217; Takeda Canada Inc v Canada (Health), 2015 FC 751 at para 62.
[177] I find that absent any evidence to the contrary, there is only one
possible instance of use of the Monohydrate in the manufacturing process.
(5)
The Strength of the Evidence Demonstrating that,
if Carried Out or Used in Canada, the Product or Process Would Constitute Infringement
[178] The final Saccharin factor is the strength of the evidence
tending to show infringement. Justice Snider explains: “[o]n
this point, my opinion would be that, where there is ambiguity in the evidence,
the benefit of the doubt should go to the party using the product or process.
This is, perhaps, simply another way of expressing the established principle
that the patentee bears the burden of proving infringement”: Pfizer-Atorvastatin
at para 90.
[179] Bayer’s evidence did not establish that the Monohydrate would be produced
or used in the manufacturing process. Of significant importance, on the
strength of Dr. Matzger’s evidence, there is no characteristic peak at 168.1
ppm on the C-NMR spectrum as required by Claim 1; there is at best merely a “signal”.
[180] Even if this C-NMR peak was found, the remaining evidence on the
XRPD spectrum remains tenuous. The XRPD findings by Dr. Matzger are contested
by Dr. Brittain on multiple grounds. For example, Dr. Brittain asserts Dr.
Matzger’s evidence does not meet the ten-peak analysis USP guidance on compound
analysis. Of note, the [Redacted] band does not appear at all in Dr.
Matzger’s sample, though it is of high relative intensity according to the
teachings of the 418 Patent. I also note the alleged characteristic band at
2θ = 26.7° is shifted [Redacted] where many of the other most
intense bands are not shifted at all.
[181] These facts, among others discussed in prior sections, amount to the
type of doubt which creates an ambiguity in the evidence. Because the burden is
on Bayer, in the presence of tenuous evidence on essential claim elements, I am
obliged to resolve the ambiguity in favour of Fresenius.
[182] Looking at all the factors, I find that, at best, Bayer could
establish (although I found it did not) that the Monohydrate is transiently
manufactured at what may be an important stage in the chemical process […………………Redacted………………………………….
………………………………………………….]. However, Bayer is unable to establish any of the
following: the final product contains any Monohydrate; there is more than one
instance at which the Monohydrate is produced; and the manufacturing process,
if carried out in Canada, would constitute infringement.
[183]
Therefore, in balancing the factors in the test
set out above, I find Bayer’s evidence insufficient to establish infringement
by importation on a balance of probabilities. Therefore, I am unable to find
infringement by importation under the Saccharin Doctrine.
VI.
Conclusion
[184]
The NOA is defective for failing to set out the “detailed statement” required by the PM (NOC)
Regulations. Therefore, the requested order of prohibition must issue. Had
that not been the case, this Application would be dismissed on the ground that
Bayer failed to establish on a balance of probabilities that Fresenius’ NOA was
not justified.
VII.
Costs
[185] Costs should follow the normal rules, and therefore follow the
event. Therefore, Bayer will have its costs payable by Fresenius. The parties
may seek further direction regarding costs by written submissions filed within
15 days of the date of this Judgment if necessary.
VIII.
Confidential Reasons
[186] These reasons contain information subject to a Confidentiality
Order. The Parties shall have 30 days to advise what, if any, portions they
wish redacted, failing which these Reasons will become the public Reasons and
be placed on the public file. Note: the foregoing sentence was included in
the Confidential Reasons and judgment; these present reasons contain redactions
requested by the Respondent and thus redacted are now public.