Dockets: T-1517-13
T-333-14
T-335-14
Citation: 2014 FC 893
Docket: T-1517-13
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BETWEEN:
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VIIV HEALTHCARE ULC,
VIIV HEALTHCARE UK LIMITED AND
GLAXO GROUP LIMITED
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Applicants
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and
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TEVA CANADA LIMITED AND
THE MINISTER OF HEALTH
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Respondents
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Docket: T-333-14
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AND BETWEEN:
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VIIV HEALTHCARE ULC,
VIIV HEALTHCARE UK LIMITED AND
GLAXO GROUP LIMITED
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Applicants
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and
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APOTEX INC. AND
THE MINISTER OF HEALTH
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Respondents
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Docket: T-335-14
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AND BETWEEN:
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VIIV HEALTHCARE ULC,
VIIV HEALTHCARE UK LIMITED AND
GLAXO GROUP LIMITED
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Applicants
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and
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APOTEX INC. AND
THE MINISTER OF HEALTH
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Respondents
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JUDGMENT
AND REASONS
HUGHES J.
[1]
The issue is arcane. Can a patent claiming but
one medicinal ingredient be listed by the Minister of Health under the
provisions of the Patented Medicines (Notice of Compliance) Regulations,
SOR/93-133, as amended SOR/2006-242, where the underlying Notice of Compliance is
directed to a fixed-dose combination of two or more medicines?
[2]
This is an appeal from two decisions for three
proceedings of Prothonotary Milczynski, in which she determined that such a
patent could not be listed. I have determined that those decisions were correct
for the Reasons that follow.
[3]
Also before me was another claim of the same
patent directed to a formulation containing one named medicinal ingredient, and
another medicinal ingredient to be selected from a group of medicinal
ingredients. Counsel for the Appellant did not pursue that claim in oral
argument. I have determined, based on the written material which the Appellant
did not withdraw, that this claim also does not support a listing.
I.
THE THREE PROCEEDINGS
[4]
There are three proceedings under consideration.
The Applicants ViiV, et al, are common Applicants in all three. Under the Patented
Medicines (Notice of Compliance) Regulations, SOR/93-133, as amended
SOR/2006-242 [“NOC Regulations”], ViiV, et al, are referred to as the
“first person” (s 2, 4(1)).
[5]
The Minister of Health (the “Minister”), who is
charged with administering the provisions of the NOC Regulations,
including maintaining the Patent Register, is a common Respondent in all three
proceedings.
[6]
In the first proceeding, T-1517-13 (the “Teva
Proceedings”), Teva Canada Limited, a “second person” under the NOC
Regulations, is a Respondent (s 2, 5(1)-(2)). In the other two proceedings,
T-333-14 and T-335-14, Apotex Inc., also a “second person’, is a Respondent.
[7]
The Teva proceedings T-1517-13 were the first in
time to be filed. Teva brought a motion under subsection 6(5) of the NOC
Regulations for an Order that Canadian Patent No. 2,289,753 (the '753
patent) be struck from the Patent Register kept by the Minister under those NOC
Regulations. Prothonotary Milczynski heard that motion and, for Reasons
cited as 2014 FC 328, gave an Order on April 3, 2014 that the '753 patent was
not eligible for inclusion on the Patent Register (the “Teva Order”).
[8]
It should be noted that the Teva Order did not
terminate the Teva proceedings, since ViiV has also asserted another patent in
those proceedings. Canadian Patent No. 2,216,634 (the '634 patent) which was
not challenged by Teva on a subsection 6(5) motion.
[9]
In two later proceedings against Apotex
(T-333-14 and T-335-14) ViiV asserted only one patent; the '753 patent. Apotex
brought a subsection 6(5) motion on the same basis as Teva; namely, that the
'753 patent was ineligible for inclusion on the Patent Register. It was agreed
by ViiV and Apotex that the evidence on the Teva motion would be evidence in
the Apotex motion. Prothonotary Milczynski gave the same Order that she did on
the Teva motion; namely, that the '753 patent was ineligible for listing (the
“Apotex Order”). That Apotex Order would have terminated the two Apotex
proceedings since there was only one patent involved; therefore, her Apotex
Order also provided for a stay permitting this appeal.
[10] The parties agreed that the evidence presented on the Teva motion is
common to all three appeals. Teva’s motion and the Apotex motion in T-333-14
are closely related, as the “reference” drug of ViiV in each case is a
Fixed-Dose Dual Combination drug, called KIVEXA, which contains two medicinal
ingredients. In the second Apotex proceedings, T-335-14, the ViiV reference
drug contains three medicinal ingredients, and is called TRIZIVIR. I will
discuss these two drugs in respect of the Notice of Compliance (“NOC”) listings.
II.
NOC LISTINGS
[11] Pursuant to the regulatory scheme under the Food and Drugs Act,
RSC 1985, c F-27 and the Food and Drug Regulations, CRC 1978, c 870: in
order that a drug may legitimately be distributed for sale in Canada, the
Minister must approve it for that purpose (see Bristol-Myers Squibb
Co v Canada (Attorney General), 2005 SCC 26 at paras 13-17, [2005] 1 SCR
533 [“Bristol-Myers”] and GD Searle & Co and Pfizer
Canada Inc, 2009 FCA 35 at paras 2-4, 71 CPR (4th)
389 [“GD Searle”] for a description of this regulatory scheme). In
brief, the Minister must be satisfied that the drug is safe and effective for
the stated use. This usually involves lengthy and expensive trials. Once
approved, the Minister provides the party seeking to distribute that drug with
an NOC and a Drug Identification Number (DIN) in respect off the particular
drug.
[12] ViiV has two such drugs. One is KIVEXA, which is a Fixed-Dose
Combination (“FDC”) (sometimes referred to in the evidence as Fixed-Dosed
Combination) tablet containing as the active ingredients, 600 mg of abacavir
sulphate and 300 mg of lamivudine. To use acronyms, KIVEXA is an FDC containing
A and L.
[13] The second such drug for which ViiV has received approval is
TRIZIVIR, which is a FDC tablet containing 300 mg of abacavir sulphate, 150 mg
lamivudine, and 300 mg zidovudine. Again, to use acronyms, TRIZIVIR is an FDC
containing A, L and Z.
[14] Pursuant to the NOC Regulations, the Minister listed the '753
patent on the Patent Register in respect of each of KIVEXA and TRIZIVIR.
[15] Teva, known as a second person under the NOC Regulations -
often called a “generic” - wishes to market in Canada a generic copy of KIVEXA.
[16] Apotex, a second person or generic, wishes to market generic copies
of each of KIVEXA (proceeding T-333-14) and TRIZIVIR (proceeding T-335-14).
[17] As is required by the NOC Regulations, each of Teva and
Apotex served on ViiV Notices of Allegations, which prompted ViiV to institute
the three proceedings now before the Court.
III.
THE '753 PATENT
[18] Canadian Patent No. 2,289,753 (the '753 patent) was issued and
granted to Glaxo Group Limited, one of the ViiV Applicants, on January 23,
2007. The application for that patent has an effective filing date of May 14,
1998, which means that the term of that patent will expire twenty years from
that date; namely, May 14, 2018.
[19] The description of the '753 patent begins at page 1. I repeat the
first paragraph without the complex chemical terms:
The present invention relates to a novel
salt of [abacavir] or a solvate thereof, pharmaceutical formulations containing
such a compound and their use in medicine, specifically in the treatment of
human immunodeficiency virus (HIV) and hepatitis B viris (HPV) infection.
[20] In the second paragraph, it is acknowledged that [abacavir] has
already been described in a European Patent Specification. In the third
paragraph, it is acknowledged that [abacavir] is currently under clinical
investigation as an anti-HIV agent.
[21] At page 2 of the '753 patent, it states that the invention lies in
the discovery of advantages of the hemisulfate salt of abacavir over the
previously known hydrochloride salt.
[22] Two claims of the '753 patent are at issue here - claim 2 and claim
32 – although ViiV’s Counsel expressly refrained from addressing claim 32 in
oral argument. Claim 2 is a claim simply to abacavir hemisulfate. Claim 32
claims a pharmaceutical formulation of abacavir hemisulfate and another
medicinal ingredient selected from a defined group. There is no claim directed
to the specific combination of abacavir and lamivudine, although the
description of the '753 patent at page 4 says that lamivudine is a member of
one of the groups defined in claim 32.
[23] There is no claim in the '753 patent specifically directed to a
three-medicinal ingredient combination such as found in TRIZIVIR.
[24] ViiV, in its Written Submissions at paragraph 33, said that it
accepted the factual findings of Prothonotary Milczynski. At paragraphs 15 to
17 of her Reasons, she states that there was no dispute between the parties as
to the proper construction of the '753 patent. I set out, and agree with, what
she wrote:
15 There is no dispute between the
parties regarding the proper construction of the 753 Patent. The 753 Patent
relates to the hemisulfate salt of abacavir. Claim 1 is a claim to abacavir
hemisulfate and solvates thereof. Claim 2 depends on Claim 1, and expressly and
exclusively claims abacavir hemisulfate, one of the medicinal ingredients in
KIVEXA(R). There is no claim of the 753 Patent that specifically claims the
combination of abacavir and lamivudine, the two medicinal ingredients in
KIVEXA(R). Claim 32 of the 753 Patent, however, claims abacavir in combination
with another or other medicinal ingredient(s), as follows:
32. A pharmaceutical
formulation as claimed in any one of claims 25 to 31, additionally comprising
one or more therapeutic agents selected from the group consisting of [1]
nucleoside reverse transcriptase inhibitors, [2] non-nucleoside reverse transcriptase
inhibitors, [3] protease inhibitors, [4] immune modulators and [5] interferons.
16 The 753 Patent elaborates at page
four, that abacavir may be used alone or in combination with a number of these
therapeutic agents suitable in the treatment of HIV and HBV infections:
The compounds of the invention may be administered alone or in
combination with other therapeutic agents suitable in the treatment of HIV
infections, such as Nucleoside Reverse Transcriptase Inhibitors (NRTIs) for
example zidovudine, zalcitabine, lamivudine, didanosine, stavudine,
5-chloro-2',3'-dideoxy-3'-fluorouridine, adefovir and
(2R,5S)-5fluoro-1-[2-(hydroxymethyl)-1,3-oxathiolan-5yl]cytosine, lovaride,
non-NRTIs for example nevirapine, delavuridine, [alpha]-APA, HBY-1293 and
efavirenz HIV protease inhibitors for example saquinavir, indinavir,
nelfinavir, ritonavir and VX-478, other anti-HIV agents for example soluble
CD4, immune modulators for example interleukin II, erthyropoetin, tucaresol,
and interferons for example [alpha]-interferon. In addition the compound of the
invention may be administered in combination with other therapeutic agents
suitable in the treatment of HBV infections for example lamivudine,
(2R,5S)-5-fluoro-1-[2-(hydroxymethyl)-1,3-oxathiolan-5yl]cytosine, immune
modulators, and interferons as described above. Such combinations may be
administered together or sequentially providing that any duration between the
administration of each therapeutic agent does not diminish their additive
effect.
17 Claim 32 thus claims a fixed dose
combination of abacavir hemisulfate and one or more of the therapeutic agents
selected from the above-noted five defined classes, one of which is the class
of nucleoside reverse transcriptase inhibitors, or NRTIs. There are nine
specific NRTIs identified, one of which is lamivudine and some twenty-one
therapeutic agents in all identified across the five classes (NRTIs, non-NRTIs,
protease inhibitors, immune modulators and interferons) that may be selected in
combination with abacavir. In other words, claim 32 of the 753 Patent is not
limited to a two drug combination with a pharmaceutical formulation comprising
abacavir hemisulfate and lamivudine. Claim 32 only includes or encompasses
within its scope, a formulation that contains abacavir and another
(unspecified) NRTI. Claim 32 contemplates any one or more classes of
therapeutic agents that may be combined with abacavir, only one of which is
lamivudine.
IV.
THE PROTHONOTARY’S DETERMINATION
[25] Prothonotary Milczynski determined that the '753 patent was not
eligible for listing as against KIVEXA. She concluded, at paragraph 31 of her
Reasons:
31 The 753 Patent is not eligible to be
listed on the Patent Register against KIVEXA(R) as it does not claim the
medicinal ingredient as required by section 4(2)(a) of the PMNOC Regulations or
the formulation of abacavir sulfate and lamivudine as required by section
4(2)(b) of the Regulations, as approved through the issuance of the NOC in
respect of the drug submission for abacavir sulfate (600 mg) and lamivudine
(300 mg) KIVEXA(R) tablets.
[26] In the Apotex proceedings T-335-14, her Order was directed to ViiV’s
TRIVIZIR listing, in respect of which it can be reasonably concluded, her
reasoning respecting KIVEXA would equally apply.
[27] The Prothonotary, in her Reasons of the Teva Order, set out the
positions of the parties and reviewed, in particular, the decision of the
Federal Court of Appeal in Gilead Sciences Canada v The Minister of Health,
2012 FCA 254 [“Gilead”]. The basis for her decision is set out at
paragraphs 28 to 30 of her Reasons:
28 Similarly, in the case of KIVEXA(R),
no claim of the 753 Patent specifically claims the combination of the two
medicinal ingredients that are the subject of the NOC for KIVEXA(R), namely
abacavir sulfate and lamivudine. There is nothing in the 753 Patent that
requires lamivudine. The 753 Patent claims only abacavir in combination with
another unnamed medicinal ingredient. Section 4(2)(a) of the PMNOC Regulations,
as held in Gilead, requires all of the medicinal ingredients identified in the
submission that results in the issuance of the NOC to be claimed in the patent
for that patent to be listed on the Patent Register. In the same manner, the
specific formulation identified in the submission that led to the issuance of
the NOC must be claimed in the patent. In the case of the 753 Patent, it is not
enough that it encompasses the medicinal ingredient lamivudine (among others)
in combination with abacavir for the purposes of section 4(2)(b) of the
Regulations.
29 The requisite degree of product
specificity is the same for section 4(2)(a) of the PMNOC Regulations as it is
for each of sections 4(2)(b), (c) and (d). The medicinal ingredient,
formulation, dosage form or use of the medicinal ingredient claimed in the
patent sought to be listed must match that in the drug submission that was
approved through the issuance of the NOC. Different listing requirements in the
case of section 4(2)(a) would not be consistent with the purpose and object of
the PMNOC Regulations to require product specificity, and also contrary to the
Federal Court of Appeal's reasons for judgment in Gilead (see also: Purdue
Pharma v. The Minister of Health, 2011 FCA 132, and in the case of subsection
4(2)(b), Bayer Inc. v. The Minister of Health, 2010 FCA 161 and Eli Lilly
Canada Inc. v. A.G. of Canada and Minister of Health, 2014 FC 152). The Court
in Gilead states at para.39:
There is no sound reason to adopt
different legislative requirements for the paragraphs set out in subsection
4(2). Each paragraph uses the definitive form in referring to both the
substance of the claim and the substance in the notice of compliance: "the
medicinal ingredient", "the formulation", "the dosage"
and "the use" (in French, "l" ingrédient,
"la formulation", "la forme
posologique", l'utilisation"). The content of each
paragraph is otherwise completely consistent.
30 Applied to the 753 Patent, it is
clear that it does not contain:
(i) a claim for the medicinal
ingredient, which medicinal ingredient has been approved through the issuance
of a notice of compliance in respect of the submission;
(ii) a claim for the formulation that
contains the medicinal ingredient and the formulation has been approved through
the issuance of a notice of compliance in respect of the submission;
(iii) a claim for the dosage form and
the dosage form has been approved through the issuance of a notice of
compliance in respect of the submission; or
(iv) a claim for the use of the
medicinal ingredient, and the use has been approved through the issuance of a
notice of compliance in respect of the submission.
V.
ISSUES
[28] The overall issue before me is whether the Prothonotary erred in
finding that the '753 patent was not eligible for listing under the NOC
Regulations in respect of ViiV’s KIVEXA or TRIZIVIR products.
[29] The question dealt with by the Prothonotary is, as stated by ViiV in
setting out the issues at paragraph 30 of its Written Representations, whether
subsections 4(2)(a) and/or 4(2)(b) of the NOC Regulations allow a person
to list on the Patent Register kept under the NOC Regulations in respect
of a FDC product, a patent containing:
a)
a claim to a compound (A) that corresponds to
one of two medicinal ingredients of an FDC (A + B); in particular, claim 2 of
the '753 patent; and/or
b)
a claim to a formulation of an FDC that
specifically names one of two medicinal ingredients and incorporates the second
by reference to a class of therapeutic agents, wherein the second medicinal
ingredient is a member of the class referenced, and is specifically identified
in the description of the patent; in particular, claim 32 of the '753 patent.
This can be described as a claim to A, plus a medicinal ingredient selected
from Group B, Group C, Group D or Group E.
[30] ViiV’s Counsel’s oral representations were directed only to
subsection 4(2)(a) of the NOC Regulations and only claim 2 as set out in
(a) above.
VI.
STANDARD OF REVIEW
[31]
This is an appeal; not a judicial review. As to
matters of law, the Court must address them on the basis of correctness. As to
findings of fact, they are to be dealt with on the basis of palpable and
overriding error (Housen v Nikolaisen, 2002 SCC 33 at paras 8,
10, 22-23, [2002] 2 S.C.R. 235).
VII.
A BRIEF HISTORY OF DRUG PATENTS IN CANADA
[32] For quite some time, Canada simply did not permit patents that claimed
a food or medicine. Many other countries did the same.
[33] Matters evolved; Canada permitted patents directed to a medicine,
provided that the medicine was claimed as produced by a particular process (Parke,
Davis & Co v Fine Chemicals of Canada Ltd, [1959] S.C.R. 219 at paras 11,
15, 17 DLR (2d) 153). Thus, if a person made the same medicine by a different
process, there would be no infringement.
[34] Subsequently, Canada permitted patents to claim medicines alone,
however produced. However, any person wishing to make or sell such a medicine
in Canada could apply to the Commissioner of Patents and, almost always,
receive a “compulsory licence” under the patent upon payment of a royalty;
usually 15% for the bulk product, and 4% to 5% for a finished product (Bristol-Myers
Squibb Co v Canada (Attorney General), 2005 SCC 26 at para 8, [2005] 1 SCR
533 [“Bristol-Myers”]).
[35] Canada was put under pressure by its trading
partners to abandon the compulsory licence scheme, and did so in 1993 (Bristol-Myers,
at para 10). In its stead came the NOC Regulations, imperfectly modelled
after the United States Hatch Waxman Act, colloquially called the
“Orange Book” proceedings because of the colour of the cover of the booklet
containing the United States Act and Regulations (Pfizer Canada Inc v Canada
(Minister of Health), 2009 FC 1165 at para 40, 78 CPR (4th) 428.
[36] There is no dispute that the Canadian NOC Regulations are not
perfect. Several amendments have been made over the years. The interested
parties, the so-called “brand” and “generic” drug companies, compete vigorously
in the political sphere to secure or prevent changes being made to the
legislation. It is not for the Court to decide whether particular facets of the
legislation, or changes made, provide a perfect “balance” between the interests
of the parties.
[37] As the late Justice Layden-Stevenson wrote in Purdue Pharma v
Canada (Attorney General), 2011 FCA 132, 93 CPR (4th) 186 [“Purdue”],
in respect of listing a patent under the NOC Regulations at paragraph
45:
45 I do not disagree with Purdue that
the purpose of the Regulations is to prevent patent infringement by a person
making use of a patented invention in reliance on the early working exception.
However, there is no obligation to provide the advantages of the Regulations in
every case. The fact that the Governor in Council establishes eligibility
criteria for the listing of patents does not detract from the legitimate
purpose.
VIII.
SCHEME OF THE NOC REGULATIONS – LISTING A PATENT
[38] The NOC Regulations provide a scheme whereby a “first
person”, usually called a “brand” or “innovator” who has secured from the
Minister permission to market a drug in Canada - the mechanism being the
issuance of the Minister to that person of a NOC - may “list” on a Register
kept by the Minister under those NOC Regulations, a patent or
patents that they own or are licensed (s 4(1)). Those patents are placed on a
Patent Register (a computer database) kept by the Minister (s 3(2)).
[39] A “second person”, usually called a “generic” who wishes to market a
similar drug in Canada, and who does not wish to submit all the clinical and
other data required to obtain a NOC, may apply under an “abbreviated” process
whereby it would submit a limited amount of data and “reference” the data
already provided by the first person (s 5(1)). Considerable time, money, and
effort would be saved.
[40] However, the second person must come to grips with the patents
listed by the first person by serving on the first person a Notice of
Allegation setting out the legal and factual basis for alleging, usually, that
the patents will not be infringed and/or are invalid (s 5(1)).
[41] The first person may do nothing and, after forty-five days have
passed, the second person usually receives a Notice of Compliance from the
Minister opening the door for it to market its generic product Canada (s 7(1)(d)). However, if the first person chooses, it may institute proceedings to
prohibit the Minister from issuing an NOC to the second person (s 6(1)). Those
proceedings must be completed within two years (s 7(1)(e)). The usual issues
are whether the allegations as to non-infringement or invalidity are justified.
If they are not justified, the Minister is prohibited from issuing an NOC to
the second person until all relevant patents expire (s 7(1)(f)). Until the
matter is decided, the first person has, in effect, an injunction preventing
the second person – the generic – from entering the marketplace with its
generic copy.
[42] Thus, critical to the process is the listing of a patent. There are
certain somewhat complex timing requirements, which are not at issue here. The
subject-matter requirements are at issue here.
[43] The subject matter listing requirements pertinent to the patent at
issue here are set out in subsections 4(2)(a) and 4(2)(b) of the NOC
Regulations, as amended by SOR/2006-242, effective October 5, 2006. They
read:
4. (2) A patent
on a patent list in relation to a new drug submission is eligible to be added
to the register if the patent contains
(a) a claim for
the medicinal ingredient and the medicinal ingredient has been approved
through the issuance of a notice of compliance in respect of the submission;
(b) a claim for
the formulation that contains the medicinal ingredient and the formulation
has been approved through the issuance of a notice of compliance in respect
of the submission;
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4. (2) Est
admissible à l’adjonction au registre tout brevet, inscrit sur une liste de
brevets, qui se rattache à la présentation de drogue nouvelle, s’il contient,
selon le cas :
a) une
revendication de l’ingrédient médicinal, l’ingrédient ayant été approuvé par
la délivrance d’un avis de conformité à l’égard de la présentation;
b) une
revendication de la formulation contenant l’ingrédient médicinal, la
formulation ayant été approuvée par la délivrance d’un avis de conformité à
l’égard de la présentation;
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[44] The terms “claim for the medicinal ingredient”, as found in
subsection 4(2)(a) of the NOC Regulations; and “claim for the
formulation”, as found in subsection 4(2)(b) of the NOC Regulations,
are defined in section 2 of those NOC Regulations, as follows:
2. “claim for
the medicinal ingredient”
“claim for the
medicinal ingredient” includes a claim in the patent for the medicinal
ingredient, whether chemical or biological in nature, when prepared or
produced by the methods or processes of manufacture particularly described
and claimed in the patent, or by their obvious chemical equivalents, and also
includes a claim for different polymorphs of the medicinal ingredient, but
does not include different chemical forms of the medicinal ingredient; (revendication de l’ingrédient médicinal)
“claim for the
formulation”
“claim for the
formulation” means a claim for a substance that is a mixture of medicinal and
non-medicinal ingredients in a drug and that is administered to a patient in
a particular dosage form; (revendication de la formulation)
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2. «
revendication de l’ingrédient médicinal »
« revendication
de l’ingrédient médicinal » S’entend, d’une part, d’une revendication, dans
le brevet, de l’ingrédient médicinal — chimique ou biologique — préparé ou
produit selon les modes ou procédés de fabrication décrits en détail et
revendiqués dans le brevet ou selon leurs équivalents chimiques manifestes,
et, d’autre part, d’une revendication pour différents polymorphes de celui-ci,
à l’exclusion de ses différentes formes chimiques. (claim
for the medicinal ingredient)
« revendication
de la formulation »
« revendication
de la formulation » Revendication à l’égard d’une substance qui est un
mélange des ingrédients médicinaux et non médicinaux d’une drogue et qui est
administrée à un patient sous une forme posologique donnée. (claim for the
formulation)
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[45] The NOC Regulations prior to the 2006 amendments respecting
listing stated:
4. (2) A patent
list submitted in respect of a drug must
(a) indicate the
dosage form, strength and route of administration of the drug;
(b) set out any
Canadian patent that is owned by the person, or in respect of which the
person has an exclusive licence or has obtained the consent of the owner of
the patent for the inclusion of the patent on the patent list, that contains
a claim for the medicine itself or a claim for the use of the medicine and
that the person wishes to have included on the register;
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4. (2) La liste
de brevets au sujet de la drogue doit contenir les renseignements suivants :
a) la forme
posologique, la concentration et la voie d’administration de la drogue;
b) tout brevet
canadien dont la personne est propriétaire ou à l’égard duquel elle détient
une licence exclusive ou a obtenu le consentement du propriétaire pour
l’inclure dans la liste, qui comporte une revendication pour le médicament en
soi ou une revendication pour l’utilisation du médicament, et qu’elle
souhaite voir inscrit au registre;
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[46] Sharlow JA, in GD Searle & Co v Canada (Minister of Health),
2009 FCA 35, 71 CPR (4th) 389, explained the change to the NOC Regulations
at paragraphs 13 to 15:
13 In this case, the interpretive debate
relates to section 4 of the NOC Regulations. For the holder of a patent, the
gateway to the advantages of the NOC Regulations is to list the patent against
an approved drug on the patent register. Section 4 of the NOC Regulations
states the conditions that must be met to list a patent on the patent register.
Subsection 3(2) of the NOC Regulations gives the Minister the authority to
delist any patent that does not meet the requirements of section 4.
14 Section 4 was substantially amended
by SOR/2006-242, effective October 5, 2006. According to section 6 of
SOR/2006-242, the post-October 5, 2006 version of section 4 does not apply to
patents on a patent list submitted for listing prior to June 17, 2006. However,
the patent in issue in this case was submitted for listing after June 17, 2006.
Therefore, the post-October 5, 2006 version of section 4 governs its
eligibility for listing. In these reasons, references to section 4 of the NOC
Regulations are references to the post-October 5, 2006 version, unless the
context indicates otherwise.
15 The jurisprudence relating to the
eligibility of patents for listing pursuant to section 4 of the NOC Regulations
(as they read prior to the October 5, 2006 amendments) had adopted an
interpretation that the government considered so broad as to unduly delay
market entry of generic drugs. The October 5, 2006 amendments were intended to
restore the balance. This is fully explained in the Regulatory Impact Analysis
Statement published with the amending regulation (SOR/2006-242).
The Regulatory Impact Statement that Sharlow JA referred to said, in
part:
Patent Listing Requirements
. . .
Consistent with this understanding of the PM(NOC) Regulations is
the fact that not every patent pertaining to an approved drug qualifies for
enforcement under the scheme. Only those patents which meet the current
timing, subject matter and relevance requirements set out in section 4 of the
regulations are entitled to be added to Health Canada's patent register and
to the concurrent protection of the 24-month stay. Embodied in each of these
requirements are certain fundamental principles which must be respected if
the PM(NOC) Regulations are to operate in balance with early-working. While
the operation of some of these requirements is described in more detail
below, a brief discussion of the principles they represent is warranted.
By stipulating that the application filing date of the patent precede
the date of the corresponding drug submission, the timing requirement
promotes a temporal connection between the invention sought to be protected
and the product sought to be approved. This ensures that patents for
inventions discovered after the existence of a product do not pre-empt
generic competition on that product Similarly, the relevance requirement
limits the protection of the PM(NOC) Regulations to that which the innovator
has invested time and money to test and have approved for sale. This prevents
hypothetical innovation from impeding generic market entry and encourages
innovators to bring their latest inventions to market. Finally, in only
allowing patents to be listed which contain claims for the medicine or its
use, the subject matter requirement makes it clear that innovations without
direct therapeutic application, such as processes or intermediates, do not
merit the special enforcement protection of the PM(NOC) Regulations.
It is recognized that there may be instances where a patent which
does not qualify for the protection of the PM(NOC) Regulations is ultimately
infringed by the fact of generic market entry. However, the Government's view
is that where the patent fails to meet the listing requirements described
above, policy considerations tip the balance in favour of immediate approval
of the generic drug, and the matter is better left to the alternative
judicial recourse of an infringement action. It follows that the continued
viability of the regime greatly depends upon the fair and proper application
of these listing requirements.
It has come to the Government's attention that an increasing
number of court decisions interpreting the PM(NOC) Regulations have given
rise to the need to clarify the patent listing requirements. These decisions,
which turn on timing and relevance issues, are not the product of judicial
error but rather of deficiency in the language of the PM(NOC) Regulations
themselves. Of particular concern is the failure of the language to fully
account for the range of submission types possible under the Food and Drug
Regulations, .the various pharmaceutical patent claims available under the
Patent Act and, most importantly, the breadth of scenarios which can arise
from the linkage between the two established by the PM(NOC) Regulations.
|
Les exigences relatives à l'inscription des brevets
. . .
Il s'ensuit que ce ne sont pas tous les brevets protégeant une
drogue approuvée qui peuvent se prévaloir du mécanisme d'application prévu
par le règlement de liaison. Seuls les brevets respectant les exigences
énoncées à l'article 4 du règlement relatives au délai, à l'objet et à la
pertinence, peuvent être inscrits au registre des brevets de Santé Canada et
bénéficier de la protection correspondante de la suspension de 24 mois. Ces
exigences reposent sur certains principes fondamentaux devant être respectés
afin que le règlement de liaison fonctionne de manière équilibrée avec
l'exception relative à la fabrication anticipée. Avant de passer à
l'explication du fonctionnement de quelques-unes de ces exigences, les
principes qui les sous-tendent seront d'abord décrits.
En stipulant que la date de dépôt de la demande de brevet doit
précéder celle de la demande d'avis de conformité correspondante, l'exigence
relative au délai procure un lien temporel entre l'invention que l'on cherche
à protéger et le produit visé par la demande d'approbation. Ceci permet de
faire en sorte que les brevets protégeant des inventions dont la découverte
est postérieure à l'existence d'une drogue n'empêchent pas l'arrivée sur le
marché de versions génériques de cette même drogue. De la même façon,
l'exigence relative à la pertinence vise à faire en sorte que le règlement de
liaison protège uniquement ce pourquoi l'innovateur a investi temps et argent
afin d'effectuer les études et l'approbation nécessaires en vue de l'entrée
sur le marché. Ceci fait en sorte que l'innovation hypothétique n'entrave pas
la mise en marché du produit générique et encourage les innovateurs à
commercialiser leurs inventions les plus récentes. Enfin, en permettant
uniquement l'inscription des brevets contenant des revendications à l'égard
du médicament ou de son utilisation, l'exigence relative à l'objet signale
clairement que les innovations ne comportant aucune application thérapeutique
directe, comme les procédés ou les intermédiaires, ne méritent pas la
protection spéciale prévue au règlement de liaison.
Bien entendu, il peut y avoir des cas où un brevet n'étant pas admissible
à la protection conférée par le règlement de liaison soit finalement
contrefait suite à l'arrivée d'un produit générique sur le marché. Toutefois,
le gouvernement estime que dans le cas où le brevet ne respecterait pas les
exigences susmentionnées, les intérêts de la politique sous jacente font
pencher la balance en faveur de l'approbation immédiate du produit générique
et qu'il est préférable que la question soit tranchée au moyen d'une action
en contrefaçon ordinaire. Il s'ensuit que la viabilité du régime dépend en
grande partie de l'application juste et équitable de ces exigences.
Le gouvernement a constaté qu'un nombre accru de décisions
judiciaires portant sur l'interprétation du règlement de liaison ont donné
lieu à la nécessité d'apporter des précisions quant aux exigences relatives à
l'inscription des brevets décrites ci-dessus. Ces décisions, concernant les
exigences relatives au délai et à la pertinence, ne sont pas le résultat
d'erreurs de la part des tribunaux, mais plutôt d'une lacune dans le libellé
du règlement lui-même. Plus précisément, le libellé du règlement de liaison
ne tient pas pleinement compte de l'éventail de types de demandes d'avis de
conformité possibles en vertu du Règlement sur les aliments et drogues, des
différentes revendications relatives aux brevets pharmaceutiques pouvant être
formulées en vertu de la Loi sur les brevets et, surtout, de la foule de
scénarios pouvant découler du lien entre les deux lois résultant du règlement
de liaison.
|
IX.
THE CURRENT JURISPRUDENCE
[47] There have been a number of decisions of this Court and the Federal
Court of Appeal dealing with the propriety of the listing of certain patents
under the NOC Regulations as amended in 2006. They include:
•
Abbott Laboratories Ltd v Canada (Attorney General), 2008 FCA 244, 68 CPR (4th) 445 [“Abbott”]
dealt with a decision of the Minister to de-list a patent directed to the use
of a medicinal ingredient. The Federal Court of Appeal considered the meaning
of “claim for the dosage form”, as found in subsections 4(3)(b) and 4(2)(c) as
well as the “change in the use” requirement under subsections 4(3)(c) and
4(2)(d) of the NOC Regulations. That Court held that while the patent
included a general claim that may cover the use identified in the listing
party’s amended NOC, it did not cover the specific use found in the
amended NOC; thus, it was not properly listed. Pelletier JA, for the Court, at
paragraphs 46 to 49, addressed the need for the patent claims to match
specifically the dosage form in respect of which the amended NOC was granted:
46 That
controversy was resolved by amendments which specified the characteristics of
patents which could be listed against specific types of SNDS's. Thus, where a
manufacturer submitted an SNDS with respect to a new dosage form, the
Regulations now require any patent sought to be filed against that submission
to contain "a claim for the changed dosage form...": see paragraph
4(3)(b) of the Regulations. In the present case, the SNDS in question is with
respect to a new indication for an existing drug PREVACID. That drug was
originally approved for use in the treatment of "duodenal ulcers, gastric
ulcers, and reflux esophagitis". The SNDS relevant to these proceedings
claims as a new indication for the drug "Healing of NSAID-associated
gastric ulcer and reduction of risk of NSAID-associated gastric ulcer".
Paragraph 4(3)(c) of the Regulations requires that any patent sought to be
listed on the Patent Register against that submission must contain "a
claim for the changed use of the medicinal ingredient".
47 It stands
to reason that if a patent must contain a claim for the changed use identified
in Abbott's SNDS, that patent cannot simply claim the use which formed the
basis of the original submission. Such a patent does not specifically claim the
changed use, even though the changed use may come within the claims of the
patent. In other words, the Regulations envisage as a condition of listing a
patent in respect of a change in the use of a medicinal ingredient that the
patent specifically claims the changed use as opposed to non-specific claims
which are wide enough to include the changed use.
48 It is this
distinction between specific claims and broad non-specific claims which led to
the discussion in the jurisprudence about the nature of the patented invention:
see Wyeth Canada, at paragraph 22, affirmed [2007] F.C.J. No. 1062 at paragraph
29. That discussion has now been overtaken by the amendments to the
Regulations.
49 Even if one
were inclined to look to the nature of the invention, the difficulty is that
the language of the Regulations speaks only of "a claim for the changed
use of the medicinal ingredient". I conclude that paragraph 4(3)(c) of the
Regulations requires, as a condition of listing a patent on the Patent Register,
that the patent must specifically claim the very change in use which was
approved by the issuance of a Notice of Compliance with respect to an SNDS.
•
GD Searle & Co v Canada (Minister of Health), 2009 FCA 35, 71 CPR (4th) 389 [“Searle”]
dealt with the decision of the Minister to de-list a patent directed to the use
of a medicine. The Federal Court of Appeal addressed subsection 4(2)(d) of the NOC
Regulations, and a claim to use. Sharlow JA, for the Court, made it clear
that a general claim for use (here a claim for treatment of pain) was
insufficient to support a listing where the use was specific to treatment of
short-term pain. She wrote at paragraphs 44 to 47:
44 The problem with the analysis
presented by Pfizer and Searle is that a claim for the use of Celebrex
"for pain" is so broad as to cover most of the known uses of Celebrex
(including its use for the treatment of the pain of arthritis and
osteoarthritis in adults, which was a use of Celebrex that was approved by the
Minister when the initial NOC for Celebrex was issued). In my view, to accept
the interpretation of paragraph 4(3)(c) proposed by Pfizer and Searle would be
inconsistent with the decision of this Court Abbott 244. More importantly, it
would give paragraph 4(3)(c) a meaning so broad as to defeat the purpose for
which it was enacted.
45 Bearing in
mind the fact that the composition claims in the 201 patent include Celebrex,
and considering also the principles established in Abbott 244, I would express
the third framework question this way: Does claim 15 of the 201 patent claim
the very use that was approved by the issuance of the NOC in response to SNDS
072375 (i.e., the "short term (= 7 days) management of moderate to severe
acute pain in adults in conditions such as: musculoskeletal and/or soft-tissue
trauma including sprains, post-operative orthopedic, and pain following dental
extraction")? As I read Abbott 244, this question must be answered in the
negative because the use claimed in claim 15 ("for pain") is simply
too general.
46 That
conclusion is confirmed by considering the purpose of the NOC Regulations, as
explained above. A generic drug manufacturer who undertakes the work required
to seek approval for a generic version of Celebrex would undoubtedly make use
of the patented invention disclosed in the 201 patent and (but for the early
working exception) would probably infringe claims 1 to 10. If, prior to the
expiry of the 201 patent, the generic drug were to be approved for the same
uses as Celebrex, the manufacture and sale of the generic drug would infringe
claims 1 to 10. However, that potential infringement cannot be the target of
the NOC Regulations because the deadline relevant to those claims was missed.
47 The
manufacture and sale of a generic version of Celebrex could also infringe claim
15. Nevertheless, the only part of claim 15 that reflects the patented
invention is the part that refers to the new compositions of celecoxib. The
"use" element of claim 15 reflects the known medicinal uses of
celecoxib. To permit the NOC Regulations to be used to target the potential
infringement of claim 15 based on those known uses would extend the scope of
the NOC Regulations beyond their intended purpose.
•
Bayer Inc v Canada (Minister of Health), 2009 FC 1171, 79 CPR (4th) 1, aff’d 2010 FCA 161, 86 CPR
(4th) 81 [“Bayer”], is relied upon heavily by ViiV in the appeal before
me. It dealt with a refusal by the Minister to list a patent directed to non-degrading
composition of a known drug. The decision of the Federal Court Judge, Russell J,
is important because the Federal Court of Appeal, in brief Reasons delivered
from the bench by Sharlow JA, dismissed the appeal, stating that they agreed
with the Trial Judge’s conclusion that the Minister’s interpretation of subsection
4(2)(b) was correct “substantially for the reasons he gave.” It is
to be noted that the Court of Appeal made no mention of subsection 4(2)(a).
At issue was the interpretation of subsection 4(2)(b) of the NOC
Regulations. The drug for which the party listing the patent had
obtained its NOC contained two medicinal ingredients, whereas the listed patent
contained only one of those medicinal ingredients. Russell J held that the
listing was improper. He wrote at paragraphs 67 to 69:
67 There is no
dispute about the meaning of "medicinal agreement," and "claim
for the formulation" is defined in section 2 to mean "a claim for a
substance that is a mixture of medicinal and non-medicinal ingredients in a
drug and that is administered to a patient in a particular dosage form."
68 The '979
Patent contains claims directed to a pharmaceutical composition containing
ethinyl estradiol. But ethinyl estradiol is only one of the medicinal
ingredients approved in NDS 119387 for YAZ.
69 Hence, in
my view, and on a plain and ordinary reading of subsection 4(2)(b), the '979
Patent does not claim the formulation that has been approved. It claims,
rather, a formulation that contains one of the medical agreements that has been
approved. The formulation that has been approved, that is YAZ, contains two
medicinal ingredients. It seems to me that a mixture containing two medicinal
ingredients is different from a mixture that contains only one medicinal
agreement (sic). Medicinal agreements (sic) are combined to achieve an optimal
effect when the drug is delivered to the patient. Generally speaking, then, a
drug with one medicinal ingredient will have a different effect from a drug
where two medicinal ingredients are combined to achieve the desired effect.
•
Purdue Pharma Canada v Canada (Attorney
General), 2011 FCA 132, 93 CPR (4th) 186 [“Purdue”],
dealt with the refusal of the Minister to list a patent directed to a dosage
form of a medicine having regard to subsection 4(2)(c) of the NOC
Regulations. The Federal Court of Appeal dealt with subsection 4(2)(c) of
the NOC Regulations; a “claim for the dosage form.” The dosage form for
which the listing party received its NOC contained two medicinal ingredients,
whereas the listed patent claimed only one of those ingredients. Layden-Stevenson
JA, for the Court, found the listing to be improper because it did not
precisely and specifically match the drug for which NOC approval had been
given. She wrote at paragraphs 41 to 44:
41 The product
specificity requirement of paragraph 4(2)(c) of the Regulations requires a
matching between: (1) the claim for the dosage form; and (2) the dosage form
that has been approved through the issuance of a notice of compliance.
42 The claim
for the dosage form is defined by the construction of the patent, that is, the
question one inquiry. This equates to the definition of "claim for the
dosage form" in section 2. However, the fact that naloxone may come within
the scope of Claim 5 does not end the matter because even if it is within the
patent's scope, it nonetheless may not match the dosage form approved by the
NOC.
43 Claim 5
relates to oxycodone and, at best, does not exclude naloxone from within its
scope. That is not the same as the dosage form of the NOC, which explicitly
includes both oxycodone and naloxone. Purposive claims construction under
question one contemplates a different inquiry than the legislated test under
paragraph 4(2)(c), which asks specifically whether the claimed dosage form and
the approved dosage form are the very same. Absent precise and specific
matching, the patent is not eligible for listing on the patent register under
the Regulations. Thus, Purdue's OXYCONTIN drug met the matching requirement;
its TARGIN drug did not.
44 In my view,
the requirement for this level of specificity is consistent with the text, the
object and the purpose of the Regulations. It is also consistent with the
interpretation of the other classes of claims in section 4 of the Regulations
as determined by the jurisprudence of this Court.
•
Gilead Sciences Canada Inc v Canada (Minister of Health), 2012 FCA 254, 105 CPR (4th) 1 [“Gilead”] dealt with the refusal of the Minister to list a patent directed to a chemically
stable combination of two or more medicinal ingredients. It is the leading Federal
Court of Appeal case on the proper interpretation of section 4(2). The meaning
and applicability of this decision is a core area of dispute in this appeal.
The Federal Court of Appeal considered both subsections 4(2)(a) and 4(2)(b) of
the NOC Regulations. On appeal, the listing party focused on subsection
4(2)(a). The party seeking to list a patent had received an NOC for a drug
containing three specific medicinal ingredients, tenofovir, emtricitabine and
rilpivrine. The patent sought to be listed claimed a drug containing tenofovir
and emtricitabine, plus a third unnamed medicinal ingredient selected from a
certain class of non-nucleoside reverse transcriptase inhibitors (NNRTIs).
Rilpivirine is known as an NNRTI but was not mentioned in the patent’s claims.
Trudel JA wrote the decision of the Court. At paragraphs 27 to 32,
she explained why subsection 4(2)(a) was relevant; not subsection 4(2)(b):
27 In my view,
both the Minister and the Judge failed to give sufficient weight to the
requirement that formulations contain non-medicinal ingredients and set out a
particular dosage form, which is administered to the patient. At the hearing of
this appeal, counsel for the respondent readily conceded that on a plain
reading of section 2, the relevant claims do not meet the definition of
formulation, because they do not contain non-medicinal ingredients. Yet, the
respondent argues that the inventive step here is the "formulation of the
separate medicinal ingredients into the new combination product" (respondent's
memorandum of fact and law at paragraph 35).
28 I conclude
that these arguments have no basis in law. The first rule in interpreting
statutes is that words "must be read in their entire context and in their
grammatical and ordinary sense, harmoniously with the scheme of the PM (NOC)
Regulations, their object, and the intention of Parliament. Where regulations
are concerned, the purpose of the enabling statute must also be
considered" Apotex v. Merck & Co. Inc., 2009 FCA 187 at paragraph 83.
29 As
mentioned above, the definition of formulation in the PM (NOC) Regulations is
clear. It must contain both medicinal and non-medicinal ingredients.
30 In
addition, the PM (NOC) Regulations are subject to the Interpretation Act,
R.S.C. 1985, c. I-21 [Interpretation Act]. The term medicinal ingredient is to
be read in both the singular and the plural, and thus allows for more than one
medicinal ingredient in an eligible claim under paragraph 4(2)(a)
(Interpretation Act at section 33(2)).
31 Finally,
the overall inventive step of the '475 Patent, as found by the Judge, is the
combination of chemically stable medicinal ingredients. The '475 Patent
emphasizes the beneficial effects of combining chemically stable combinations
of medicinal ingredients.
32 Thus, I
conclude that the '475 Patent falls under paragraph 4(2)(a), as the relevant
claims consist of chemically stable combinations of medicinal ingredients.
At paragraph 39, she stated that there was no sound reason to adapt
different legislative requirements for each of the subsections of section 4(2)
of the NOC Regulations:
39 There is no
sound reason to adopt different legislative requirements for the paragraphs set
out in subsection 4(2). Each paragraph uses the definitive form in referring to
both the substance of the claim and the substance in the notice of compliance:
"the medicinal ingredient", "the formulation", "the
dosage" and "the use" (in French, "l'ingrédient," "la formulation",
"la forme posologique", "l' utilisation"). The content of each paragraph is otherwise completely
consistent.
At paragraph 43, she emphasized that the 2006 amendments to the NOC
Regulations required product specificity:
43 The 2006
revisions also clearly introduced the requirement for product specificity. A
plain reading of the version in force prior to the 2006 revisions establishes
that if the patent claims were shown to be "relevant to" the approved
drug, the submitted patents were generally accepted for listing. In contrast,
the revised version introduces a requirement for more detailed information on
the product against which the patent is to be listed, including the medicinal
ingredient, the brand name, the dosage form, the strength, the route of
administration and the use as set out in the NDS. In addition, the categories
set out in section 4 are now more detailed and precisely defined. These
changes, combined with the greater emphasis on meeting eligibility criteria and
being subject to the Minister's determination as noted above, lead to a clear
rejection of Gilead's argument for a wide scope of connection between the
patent claims and the NOC.
At paragraphs 44 and 45, she refused to adopt the Minister’s Guidance
Document for the purpose of her interpretation of subsection 4(2)(a):
44 Finally, the
Guidance Document cited by the appellant is useful to clarify the roles of the
different actors in the patented medicine system, notably innovators, generic
manufacturers, and the Minister. However, it is not a legally binding document.
More significantly, where the Guidance Document is inconsistent with, or in
conflict with, the PM (NOC) Regulations, the latter takes precedence over the
former (Guidance Document, section 1.2, appeal book, volume II, tab 6C). At the
hearing, the Minister conceded that only the PM (NOC) Regulations are a binding
statement of law.
45 I note also
that the PM (NOC) Regulations provide no support for the interpretation
suggested in the Guidance Document. As noted above, the wording of section 4 is
consistent across the four subsections and requires a high degree of
specificity between the wording of the claim and the NOC. It would be necessary
to read an interpretation into paragraph 4(2)(a) to allow the paragraph to
support claims which contain only some of the medicinal ingredients. Such an
interpretation goes against the ordinary meaning of the words, the purpose and
object of the PM (NOC) Regulations, and the government's position that product
specificity is the key consideration in interpreting section 4. As a result, I would
not attribute this interpretation to the PM (NOC) Regulations.
The Guidance Document referred to by Trudel JA was published by the
Minister in 2007 and said, inter alia:
[A] patent
claiming, as a compound, a single medicinal ingredient, will be eligible for
listing with respect to a drug which contains the said medicinal ingredient in
combination with other medicinal ingredients, notwithstanding that the
medicinal ingredient on the NOC is a combination of medicinal ingredients.
Trudel JA concluded at paragraph 49 that the patent could not be
listed:
49 I would
therefore uphold the Judge's conclusion that the patent claims fail the
requirement for product specificity because they do not make specific reference
to the medicinal ingredient rilpirivine, but only the broad class of compounds.
However, as set out above, I would do so under paragraph 4(2)(a) rather than
4(2)(b).
•
Novartis Pharmaceuticals Canada Inc v Canada
(Attorney General), 2012 FC 836, 104 CPR (4th) 107
[“Novartis”] dealt with the refusal of the Minister to list a patent
formulation of perforated microstructure comprising of a “bioactive agent” to
be used with metered dose inhalers and the like. Martineau J found the patent
ineligible for listing against tobramycin under subsection 4(2)(b). The patent
at issue claimed an inhalation device comprising a bioactive agent, and
included in the description:
24 [a] list
of possible bioactive agents, including antibiotics as well as examples of
antibiotics (streptomycin and gentamicin) that belong to the narrower subclass
of amino-glycoside antibiotics to which tobramycin also belongs. However,
nowhere in the ‘819 patent is tobramycin itself made explicit as a possible
bioactive agent.
Following Trudel JA’s reasons in Gilead, Martineau J rejected
Applicant’s attempt to distinguish its case from Bayer and Purdue at
paragraphs 58 to 60:
58 I agree
with the applicant that the facts in this case are different with the facts in
Bayer, above. Nonetheless, the ratio in Bayer (FC), above, readily applies. Essentially,
the applicant is asking the Court to do exactly what the Federal Court of
Appeal refused to do in Bayer; that is, to find that the inclusion of
antibiotics as a class, without specifying tobramycin, is sufficient to
constitute a claim for the formulation containing the medicinal ingredient.
This type of inclusion had been rejected in Bayer, and more strictly in Gilead, with regard to the interpretation of paragraph 4(2)(b) of the Regulations.
59 The
applicant argues that this case should be distinguished from Bayer and Purdue
in that in those cases there were medicinal ingredient(s) in the approved drug
that did not fall within the claims of the patent sought to be listed, while
the ‘819 patent contains formulation claims that encompass the one medicinal
ingredient of the approved product, tobramycin. However, this is only part of
the principles established in Bayer and Purdue. In light of Gilead, it is not
sufficient that the approved medicinal ingredient be, as a matter of scientific
fact, within a more or less large class of active agents that the patent
claims. In that case, Gilead had obtained approval of tablets formulated with
three antiviral agents as the drug’s medicinal ingredients: tenofovir,
emtricitabine and rilpivirine. Although rilpivirine comes within the rather
limited class of agents known as NNRTIs that the patent explicitly referenced,
no reference to the medicinal ingredient rilpivirine itself was found in the
patent. The Court found that in order to be eligible for listing, the relevant
claim for the formulation must be identical to the formulation in the NDS, so
that the non inclusion of rilpivirine alone in the patent rendered it
ineligible.
60
Therefore, in light of Gilead, even if the ‘819 patent at issue gave priority
to amino-glycoside antibiotics as being a preferred embodiment and went on to
name gentamicin and streptomycin and other examples of amino-glycoside
antibiotics, the applicant would not have a greater chance of success.
•
Eli Lilly Canada Inc v Canada (Attorney General), 2014 FC 152, 238 ACWS (3d) 446 [“Eli
Lilly”], and is currently under appeal, A-146-14. The Court dealt with a
patent claiming one medicinal ingredient. Bédard J of the Federal Court held that under subsection
4(2)(b) of the NOC Regulations a patent claiming one medicinal
ingredient could not be listed in respect of an NOC granted for two medicinal
ingredients. As with Novartis, Bédard J followed and applied Trudel JA’s holding in Gilead to
her reasoning. At paragraphs 73, 80 to 85, she wrote:
73 The
jurisprudence has been consistent that the current version of subsection 4(2)
of the Regulations, as amended in 2006, has introduced a product specificity
requirement and that there must be a perfect match between what is claimed and
what has been authorized. In the case of a claim for a formulation, all of the
medicinal ingredients included in the drug product as authorized must be
included in the patent claims. Despite counsel for the applicant’s very able
submissions, I am bound by the judgments rendered by the Federal Court of
Appeal and I cannot depart from the interpretation of subsection 4(2) of the
Regulations adopted by the Federal Court of Appeal in a series of judgments and
more recently in Gilead. Furthermore and with respect, I do not understand Gilead as having enhanced the product specificity requirement as interpreted in the
previous judgments of the Federal Court of Appeal. I see it as the application
of the recognized principles to the specific set of facts of that case...
. . .
80 As
indicated earlier, my interpretation of the '329 Patent claims is somewhat
broader than that of the Minister. I concluded, in the first tier of the
analysis, that the claims are directed not only to a formulation including
spinosad alone as the active ingredient, but also to formulations that include
other active ingredients such as, but not restricted to, milbemycin oxime. In
other words, I concluded that the '329 Patent could extend to a formulation
containing both spinosad and milbemycin oxime.
81 The
question now is whether the fact that the claims can be read as covering a
formulation that could, but that does not necessarily, comprise the specific
ingredient, milbemycin oxime, is sufficient to meet the strict matching
requirement with Trifexis' NOC which clearly comprise this specific ingredient.
82 The
situation in Gilead was somewhat similar to that in this case. In Gilead, the
Federal Court of Appeal found that the Federal Court (Mosley J.) did not err in
its reasoning under the product specificity requirement (Gilead, at para 47).
It is useful to reproduce the following excerpt from the Federal Court's
judgment in that regard:
46. There
is nothing in the '475 Patent that points specifically to rilpivirine as the
third ingredient in the class of NNRTIs. As the evidence of Dr. Miller on
behalf of the applicant states, several other NNRTI's had been studied for
their efficacy in treating HIV prior to the grant of the patent. References to
an NNRTI in the patent are not to a specific medicinal ingredient but rather to
the class of compounds, one or more of which may have been found to be suitable
to be included in a formulation with tenofovir and emtricitabine. The claims
that specify such a formulation are not specific to the drug in the Complera
NDS.
Gilead
Sciences Canada Inc v. Canada (Minister of Health), 2012 FC 2, [2012] F.C.J.
No. 495
83 The
applicant distinguishes the facts in Gilead from those in this case. He asserts
that the medicinal ingredient that was not specifically mentioned in the patent
claims in Gilead (the patent referred to the general class of non-nucleoside
transcriptase inhibitors (NNRTIs) to which the specified medicinal ingredient
mentioned in the approved drug belongs), but was specified in the NDS, was
invented and disclosed only after Gilead’s invention and as such, a person of
ordinary skill in the art could not have known of its existence at the relevant
time. This distinction is a valid one as it is clear in this case that, at the
relevant time, milbemycin oxime existed and was part of the family of
milbemycins.
84 However,
the Federal Court of Appeal endorsed the Federal Court’s reasoning pertaining
to the product specificity requirement. It is worth noting that Justice
Mosley’s finding was that it was insufficient for a patent to meet the product
specificity requirement by referring to a class of compound rather than to a
specific medicinal ingredient. He found that the claim was not specific enough
to match the medicinal ingredients in Complera. That conclusion was based on
the principle above, not on the fact that the third medicinal ingredient could
not have been claimed in the patent because it had not been discovered at the
date of the patent’s publication.
85 I feel bound by
this reasoning and, therefore, I conclude that it should equally apply to the
case at bar. Referring to the general family of milbemycins in the definition
of oral formulation is not specific enough to conclude that the claims match
the formulation contained in Trifexis. In my respectful view, this conclusion
is not altered by the possibility that the ‘329 Patent could extend to a
formulation containing milbemycin oxime.
•
Lastly, we have the decision of Prothonotary
Milczynski, under appeal here.
[48]
I draw the following principles respecting the interpretation of the
various subsections of 4(2) of the NOC Regulations having regard
particularly to the Federal Court of Appeal decisions and the Reasons of
Justice Russell in Bayer, as affirmed by the Federal Court of Appeal:
•
There is no sound reason to adopt different legislative
requirements of product specificity for the various subparagraphs of subsection
4(2) of the NOC Regulations (Gilead, paragraph 39);
•
absent precise and specific matching between what the patent
claims and the product/use/dosage forms for which the NOC has been granted to
the first person, the Minister cannot properly list the patent (Purdue,
paragraphs 43; Abbott, paragraph 49; Gilead, paragraphs 37-38);
•
a claim for a formulation means a claim that includes both
medicinal and non-medicinal ingredients. A claim directed to medicinal
ingredients, without claiming also non-medicinal ingredients, does not qualify
for listing as a formulation under subsection 4(2)(b) of the NOC Regulations
(Gilead, paragraphs 27 to 32, 49; Bayer, paragraphs 67 to 69).
•
where a patent claims only one medicinal ingredient, it cannot be
listed as against an NOC obtained for two (or more) medicinal ingredients; at
least where, to use the words of Russell J, at paragraph 69 of Bayer,
where “…a drug with one medicinal ingredient will have a different effect
from a drug where two medicinal ingredients are combined “to achieve
the desired effect [emphasis added].” This same
distinction appears in Gilead, where Trudel JA wrote at paragraphs 31
and 32:
31 Finally, the overall
inventive step of the '475 Patent, as found by the Judge, is the combination of
chemically stable medicinal ingredients. The '475 Patent emphasizes the
beneficial effects of combining chemically stable combinations of medicinal
ingredients.
32 Thus, I conclude that the
'475 Patent falls under paragraph 4(2)(a), as the relevant claims consist of
chemically stable combinations of medicinal ingredients.
[49]
Thus, in Bayer and Gilead a patent claiming only one
medicinal ingredient could not be listed where the relevant NOC was directed to
a combination of that one medicinal ingredient and other medicinal ingredients,
arguably, to produce a different effect than if the drugs were
administered separately. I will address this matter later in these Reasons.
X.
POLICY REASONS FOR INCLUDING FDC’S LIKE THE '753 PATENT
[50] ViiV
argues that the question of whether under subsection 4(2)(a) of the NOC
Regulations a patent claiming a compound that corresponds to one of the two
medicinal ingredients in an FDC would be eligible for listing on the Patent
Register is a matter of first impression, i.e., no jurisprudence expressly
dealt with this question. Therefore, according to ViiV, the Court is free to
construe subsection 4(2)(a) of the NOC Regulations in light of policy
considerations. Needless to say, ViiV argues that policy considerations favour
listing patents claiming a single medicinal ingredient where the drug in
question contains that medicinal ingredient, plus at least one more; the
so-called fixed-dose combination (FDC).
[51]
ViiV’s argument respecting policy begins with the basis for the NOC
Regulations. Section 55.2(1) of the Patent Act, provides, as an
exception to the monopoly granted by the patent, that others may work the
patented invention in limited circumstances related to the development and
submission of information required by any law of Canada. ViiV argues that the
Court should limit the meaning of this exception, so as not to discourage
innovation; which is the purpose of the Patent Act. ViiV argues, as
does the Minister, that, in the course of drug development, the innovators
usually develop one medicinal ingredient first; and later follows on with
combinations of that medicinal ingredient with others; such development should
not be hindered.
[52]
I pause here to remark upon the basis for this statement as to drug
development. It comes from the Affidavit of Karen Feltmate, who characterizes
herself as an expert in drug regulatory strategy. She says, at paragraph 69 of
her Affidavit:
Generally, fixed-dose combination drugs are developed by
combining medicinal ingredients where one or more are already marketed as
separate products, whether by the same or different companies. I have no doubt
that companies will continue to develop and commercialize individual medicinal
ingredients.
[53]
Such a statement is clearly hearsay, and is not within the scope of her
expertise. Drug development and incentivizing such development, is beyond the
scope of expertise of one dealing with drug regulatory affairs.
[54]
ViiV relies heavily on the decision of the Supreme Court of Canada in Bristol-Meyers
Squibb Co v Canada (Attorney General), 2005 SCC 26, [2005] 1 S.C.R. 533 [“Bristol-Myers”].
The reasons for the majority of that Court were given by Binnie J. That case
dealt with an interpretation of the NOC Regulations as they stood prior
to the NOC Regulations at issue in the case before me. The
Federal Court of Appeal ([2003] 4 FC 505, 24 CPR (4th) 417) had held that the
wording of the NOC Regulations at that time captured the
application of an innovator – not a generic – who had come to the market with a
similar, but not identical, product to the first innovator. In other words,
innovators, and not just generics, were caught by the wording of the NOC Regulations
as they stood.
[55]
Binnie J, for the majority, found that such an interpretation was wrong.
He explained the basis for the arguments at paragraphs 3 and 4:
3 The drug in dispute contains a cancer-fighting medicine
called paclitaxel. Paclitaxel was discovered by the National Cancer Institute
in the United States, not the respondents Bristol-Myers Squibb Company and
Bristol-Myers Squibb Canada Inc. (collectively "BMS"), but BMS has
three subsisting patents related to its formulation and administration. The
appellant, Biolyse Pharma Corporation ("Biolyse"), argues that the
Patented Medicines (Notice of Compliance) Regulations, SOR/93-133 ("NOC
Regulations"), must be taken to refer to patented medicines, and points
out that BMS can have no patent on paclitaxel itself. There is an unchallenged
finding of fact by the motions judge that approval of the Biolyse product was
not based on bioequivalence with the BMS product, but on its own clinical
studies and "what was known to scientists in the public realm about
paclitaxel" ((2002), 224 F.T.R. 236, 2002 FCT 1205, at para. 40 (emphasis
added)).
4 Nevertheless, BMS says that a literal application of
the words in s. 5(1.1) of the NOC Regulations entitles it to the statutory
injunction under s. 7 to keep a Biolyse product containing paclitaxel off the
market despite the clear indication that an application of s. 5(1.1) would put
the NOC Regulations in conflict with the terms of the regulation-making power
under which they were issued. BMS contends that under the NOC Regulations the
mere presence of the public domain medicine paclitaxel in the [page544] Biolyse
formulation is enough. (Although there are other similarities between the
Biolyse product and the BMS product, the only common component relevant to the
NOC Regulations is the medicine paclitaxel.) The Federal Court of Appeal
accepted this argument but in my opinion, with respect, it erred in doing so (
[2003] 4 F.C. 505, 2003 FCA 180). An interpretation of the NOC Regulations that
confers on BMS a monopoly merely by demonstrating the presence of a public
domain medicine like paclitaxel in its product provides no value to the public
in exchange for the monopoly BMS seeks. When the NOC Regulations are considered
in their proper context, and in particular in light of the wording of s.
55.2(4) of the Patent Act, R.S.C. 1985, c. P-4, that authorized them, the NOC
Regulations do not have the sweeping effect contended for by BMS. I would
therefore allow the appeal.
[56]
Binnie J began his analysis by emphasizing that facts are important. He
wrote at paragraph 34:
34 As always, the facts are important. BMS sought to
quash the NOC issued to Biolyse on the basis that its issuance depended on the
Minister's [page556] finding that the Biolyse product was
"bioequivalent" to the BMS product. It was therefore a
"copy-cat" drug which s. 5(1) of the NOC Regulations required the
Minister to put into the statutory freeze. The BMS position was rejected both
by the Minister and by the motions judge. It is useful to quote the language of
the motions judge:
Biolyse did not compare its drug or make
reference to another drug for the purpose of demonstrating bioequivalence.
Biolyse did not apply for a declaration of equivalence nor was one granted.
On the evidence, the Biolyse submission contains
clinical studies on sick patients; specifically those with advanced breast
cancer unresponsive to usual treatments and those with locally advanced
non-small-cell lung cancer. The safety and efficacy of the Biolyse product
assessment was based on those studies and on what was known to scientists in
the public realm about paclitaxel. This is consistent with the usual procedure
for a NDS. [Emphasis added; paras. 39-40.]
This finding was not challenged by BMS
[57]
The argument of the party caught by the NOC Regulations,
Bristol-Myers Squibb (BMS), was set out at paragraph 42 of Binnie J’s Reasons:
42 Biolyse contends that not all "submissions"
to the Minister are caught by s. 5(1.1), and on this point it is supported by
the intervener Pfizer Canada Inc., itself an innovator drug company. Pfizer
argues that s. 5(1.1) does not apply to certain types of submissions (in its
case Supplementary New Drug Submissions ("SNDS")) which are outside
the policy objective s. 5(1.1) was intended to implement. Biolyse agrees that
s. 5(1.1) should be construed by reference to the policy objective, and in
particular that it should not apply to an innovator drug NDS (as the motions
judge found its [page560] product had correctly been classified by the
Minister) but only to submissions for generic "copy-cat" drugs which
use a "Canadian reference product" and are applied for under an ANDS.
[58]
Binnie J followed with a substantial analysis, which I will not repeat
here, reading the NOC Regulations in the broader context of the Patent
Act and reciting portions of the Regulatory Impact Analysis Statement
(“RIAS”). At paragraphs 52 and 53 of his Reasons, Binnie J pointed out
that “…it is not every use of the patented invention that will trigger the
NOC Regulations…”
52 Firstly, the regulations are to be directed
to persons who are making use of the "patented invention". As pointed
out by this Court in Monsanto Canada Inc. v. Schmeiser, [2004] 1 S.C.R. 902,
2004 SCC 34, the patented invention is not necessarily co-extensive with the
patent claims. The distinction was critical in that case to the issue of
remedy. While farmer Schmeiser had used the patented product (Roundup Ready
Canola seed), he had not taken advantage of the patented invention (its
herbicide resistant property) because he had not sprayed his crop with Roundup.
The Court thus rejected Monsanto's claim to Schmeiser's profits from his canola
crop.
The difficulty with the trial
judge's award is that it does not identify any causal connection between the
profits the appellants were found to have earned through growing Roundup Ready
Canola and the invention. On the facts found, the appellants made no profits as
a result of the invention. [Emphasis in original; para. 103.]
[page565]
The use of the expression "patented
invention" in s. 55.2 is therefore an important clue to the scope of the
regulations it authorizes to be made. BMS did not invent or discover
paclitaxel.
53 Secondly, it is not every use of the
patented invention that will trigger the NOC Regulations. Section 55.2(4) is
specifically directed to preventing infringement by persons who use "the
patented invention" for the "early working" exception and the
"stockpiling" exception set out earlier in ss. 55.2(1) and 55.2(2).
That is all the Governor in Council is authorized to regulate. (The stockpiling
exception was repealed by S.C. 2001, c. 10, s. 2(1); assented to June 14,
2001.)
[59]
Binnie J concluded that the interpretation given by the Federal Court of
Appeal and argued before him by BMS, would lead to an absurd result and stifle
innovation. He wrote at paragraph 66:
66 The broad interpretation urged by BMS would lead to an
absurd result. The "medicine" in the drug to which the patent list
relates need not itself be patented, or indeed owe anything to the ingenuity of
the "first" person. It could be a "medicine" whose
usefulness was discovered by somebody else (as in the case of paclitaxel) or
something in the public domain as common as penicillin. So long as such
"medicine" shows up as a component, however minor, in the chemical
composition of the drug to which the patent list relates, the "second
person" (including an innovator who is seeking to manufacture a new and
useful drug) is barred from proceeding to market by the automatic statutory
freeze, and this "bar" will continue for so long as the patent list
[page569] holder can evergreen its product by resort to patentable improvements
to other components or additions, be they ever so minor. This would stifle
competition and innovation in the pharmaceutical industry and produce a result
at odds with what the regulator was trying to achieve.
[60]
In the case before me, ViiV argues that to exclude patents like the '753
patent from listing under the NOC Regulations would deter innovation.
ViiV argued that the rebalancing made by the 2006 amendments to the NOC Regulations
should not be interpreted so as to exclude FDC products.
[61]
I reject ViiV’s arguments. First, Justice Marshall Rothstein of the
Supreme Court of Canada in his Comment entitled “Advocacy in Intellectual
Property Litigation in the Supreme Court of Canada” (2014) 26:2 Intellectual
Property Journal at 145, wrote at page 146:
…we’re not an error-correcting court, but a jurisprudential
court.
[62]
Thus, at the highest level, the Supreme Court of Canada may, as it did
in Bristol-Myers, engage in a jurisprudential exercise, including
consideration, if needed, of policy. However, at this Lower Court level, it is
for a Court such as this one to follow the jurisprudence where it has been
established; even if established in obiter by a Higher Court. Trial
Courts should be loathe to embark on “policy” interpretations of legislation
without a clear and substantial reason to do so.
[63]
Second, I reject ViiV’s arguments because the 2006 amendments to the NOC
Regulations have endeavoured to strike a balance between the interests of
the various parties. It may be imperfect, but it did endeavour to strike a
balance. As I quoted earlier from the late Justice Layden-Stevenson in Purdue,
at paragraph 45:
I do not disagree with Purdue that the purpose of the Regulations
is to prevent patent infringement by a person making use of a patented
invention in reliance on the early working exception. However, there is no
obligation to provide the advantages of the Regulations in every case. The fact
that the Governor in Council establishes eligibility criteria for the listing
of patents does not detract from the legitimate purpose.
[64]
I have earlier quoted substantially from the RIAS respecting the 2006
amendments to the NOC Regulations. That statement made it clear that in
enacting those amendments:
[N]ot every patent pertaining to an approved drug qualifies
for enforcement under the scheme.
…
It is recognized that there may be
instances where a patent which does not qualify for the protection of the
PM(NOC) Regulations is ultimately infringed by the fact of generic market entry[emphasis added]. However, the Government's view is that where the
patent fails to meet the listing requirements described above, policy
considerations tip the balance in favour of immediate approval of the generic
drug, and the matter is better left to the alternative judicial recourse of an
infringement action.
[65] Therefore,
unlike Bristol-Myers where the Supreme Court of Canada held that the
effect of BMS’s interpretation of the NOC Regulations would
lead to an absurd result, the Federal Court of Appeal in Purdue
already found that the effects of the NOC Regulations’ product
specificity requirement, as described in the RIAS above, is not inconsistent
with the purpose of section 55.2(4) of the Patent Act to prevent patent
infringement.
[66] In
light of the foregoing, I agree with Teva that adopting ViiV’s interpretation
of the NOC Regulations would constitute an effective
rewriting of those NOC Regulations in order to create what ViiV
perceives as a fair and proper balance between the interests of brand and
generic manufacturers. As I indicated before, such an act of supplanting the government’s
attempt to maintain this balance for a balance preferred by the Court would be
a political decision, not a judicial decision and would constitute an
unjustified overstepping of this Court’s bounds outside the jurisprudential
sphere and into the political sphere of policy-making (Ontario v Criminal
Lawyers’ Association of Ontario, 2013 SCC 43 at paras 27-30, [2013] 3 S.C.R. 3).
[67]
Finally, I reject ViiV’s arguments respecting policy, because I find
that the Federal Court of Appeal has already interpreted subsection 4(2)(a) and
(b) of the NOC Regulations and, given that interpretation, the '753
patent does not qualify for listing. I address this elsewhere in the Reasons.
“I address this in the next part of my reasons.”
[68]
On this point it is worth noting that the '753 patent’s ineligibility
for listing on the Patent Register does not prevent ViiV from bringing an
infringement action (Gilead, at paragraph 42).
[69]
If a party such as ViiV is unhappy with the NOC Regulations
as they stand, the better course of action is to approach Parliament and its
law makers, rather than the Courts.
XI.
DID GILEAD DEAL WITH SUBSECTION 4(2)(a)?
[70]
ViiV argues that the Federal Court of Appeal dealt with subsection
4(2)(a) of the NOC Regulations only in obiter, and that I should
follow the decision of Russell J in Bayer in determining the meaning and
effect of that subsection. I disagree.
[71]
There is no doubt that Russell J dealt with subsection 4(2)(b) in his
Reasons in Bayer, and that the Federal Court of Appeal, in its brief
oral reasons, adopted that reasoning in respect of subsection 4(2)(b).
[72]
Russell J, in his Reasons at paragraphs 72 to 81, dealt with an argument
raised by Bayer, based largely on the Minister’s Guidelines, reproduced earlier
in my Reasons. Russell J found that a different approach to compound patents
from formulation patents was required when matching and specificity are being
considered under subsections 4(2)(a) and 4(2)(b). At paragraphs 77 to 81, he
wrote:
77 The principled distinction, it seems to me, is found
in the fundamental difference between a compound patent and a formulation
patent. A compound patent is eligible for listing on the Register under 4(2)(a)
because it contains a claim for the approved medicinal ingredient which is the
key active part of the drug formulation. This means that, in the context of
early working, a generic copy of the drug containing the compound has early-worked
the compound patent.
78 On the other hand, as the Respondents point out, a
formulation patent such as '979 does not contain a claim for the medicinal
ingredient itself. It is rather a claim for the approved mixture of medicinal
and non-medicinal ingredients that are actually administered to the patient.
79 In my view, there is nothing unprincipled or
inconsistent in the Minister's interpretation, because a formulation that is a
mixture of more than one compound is different from a composition containing
only one compound.
80 The essence of a compound patent is the medicinal
ingredient; the essence of a formulation patent is the mixture of ingredients.
This distinction requires a different approach when matching and specificity
are being considered under subsections 4(2)(a) and 4(2)(b). In my view, there
is nothing inconsistent or unprincipled about the Minister's approach to this
distinction.
81 In essence, the Applicant is saying that matching and
specificity are present under subsection 4(2)(b) whenever the patent claims
refer to at least one of the medicinal agreements in the approved drug
submission. This would mean, for instance, that if the drug submission
encompassed a mixture of, for example, five medicinal ingredients, the required
degree of matching would still be present even if the patent refers to only one
of them. In my view, this equates listing on the Register with patent
infringement under the Act. I do not believe that either the wording of
subsection 2 or the policies behind the new regulations support such a
position.
[73]
This distinction with respect to subsections 4(2)(a) and (b) by Russell
J was not endorsed by the Federal Court of Appeal in their brief reasons in Bayer.
Thus Russell J’s discussion of subsection 4(2)(a) in Bayer is not
binding on me.
[74]
In Gilead, the Federal Court of Appeal expressly considered
subsection 4(2)(a) of the NOC Regulations. Trudel JA, in her reasons for
the Court drew an analogy to the reasoning of Layden-Stevenson JA in Purdue
in dealing with subsection 4(2)(c), and applied them equally to subsection
4(2)(a), stating that there is no sound reason to adopt different requirements
for each of the subsections of 4(2). I repeat what she wrote at paragraphs 37
to 40:
37 Purdue's first argument is: "for claims for the
dosage form under [paragraph] 4(2)(c), all that is required is that the dosage
form has been approved." Purdue draws a distinction between the wording of
paragraph 4(2)(b) which refers to a claim for the formulation that contains the
medicinal ingredient and paragraph 4(2)(c) which makes no reference to a
medicinal ingredient. According to Purdue, since there is no requirement for a
medicinal ingredient in paragraph 4(2)(c), it had to establish only that the
delivery system approved under the TARGIN NOC (the controlled release tablet)
was the same as that claimed under Claim 5.
38 The judge made short shrift of this argument by
referring to the definition of "claim for a dosage form" in section
2. By virtue of the definition, paragraph 4(2)(c) necessarily requires a claim
for a dosage form for administering a medicinal ingredient in a drug. I
completely agree with the judge's reasoning.
39 Purdue's second argument is that there is a further
distinction in relation to the definition of "claim for the dosage
form" and "claim for the formulation." A claim for the dosage
form "requires that the medicinal ingredient be within the scope of the
claim, while a claim for the formulation refers only to the mixture of
medicinal and non-medicinal ingredients" (emphasis in original). In
Purdue's view, the language in the definition of a claim to the dosage form
indicates that the medicinal ingredient is not required to be a part of a claim
for the dosage form.
40 To the extent that this submission adds anything to
its first argument, it hinges on Purdue's proposed construction of Claim 5 of
the '738 Patent, specifically that it is broad enough to include naloxone
although it is not expressly named in that claim. Yet that is precisely the
problem. The claim is so broad that, as noted earlier, it could cover an
unlimited number of unnamed other medical ingredients. That is not what the
patent eligibility requirements are about.
[75]
ViiV’s Counsel calls this obiter. It is not; and, even if it were
it was so integral to Trudel JA’s analysis that determined the outcome of Gilead
that, this Court should be bound to follow it (R v Henry,
2005 SCC 76 at paras 54-57, [2005] 3 S.C.R. 609; R v Prokofiew, 2010 ONCA
423 at paras 18-20, 100 OR (3d) 401, aff’d 2012 SCC 49, [2012] 2 S.C.R. 639).
[76]
ViiV’s Counsel argues that if the Federal Court of Appeal meant to
distinguish Bayer, it would (or should) have done so in its reasons. In
my view, there is no reason to distinguish Bayer. While, in a perfect
world, the reasons of a Court would deal with every possible criticism and
future challenges – anticipated and unanticipated – there was no need to
explicitly deal with Bayer; as the latter dealt with subsection
4(2)(b) in its result. In Gilead, the Federal Court of Appeal clearly
states at paragraph 49, in its Conclusion, that it was dealing with subsection
4(2)(a).
[77]
Gilead is amply clear; a high threshold of specificity between
what is claimed in the patent and the NOC is required. A patent claiming only
one medicinal ingredient cannot be listed in respect of an NOC containing two
or more medicinal ingredients.
XII.
ARE FIXED-DOSE COMPOSITIONS UNIQUE SO AS TO BE ABLE TO BE LISTED
UNDER 4(2)(a)?
[78]
I raised this issue with Counsel at the hearing, invited an adjournment
if requested, but Counsel were content to address the matter at the hearing.
[79]
Logic would dictate that, if two separate tablets, each containing a
single medicinal ingredient, were to be placed in a single envelope suitable
for swallowing, then, while the envelope contained two medicines, each remained
discrete. Thus, it could be argued, the envelope still contained a discrete –
or single – medicinal ingredient.
[80]
Having considered the matter further, I find that this argument cannot
prevail. First, in law, Gilead is amply clear. There is a “high
threshold” of consistency; every medicine in the envelope must be claimed. I
repeat paragraph 40:
40 The wording of the PM (NOC) Regulations, as well as
their object and purpose, suggest that the product specificity requirement sets
a high threshold of consistency. Thus, in the case at bar, "the"
medicinal ingredients, i.e., tenofovir, emtricitabine, and rilpirivine, must be
set out in the patent claims and the NOC for the patent to be eligible on the
register.
[81]
Second, the evidence in the record is ambiguous as to whether we have
two separate medicines functioning independently, or whether they somehow
interact and are synergistic.
[82]
In Bayer, Russell J seemed to be under the impression that when
two medicines are combined, they have a different effect than two separate
medicines. I repeat paragraph 69 of his Reasons:
69 Hence, in my view, and on a plain and ordinary reading
of subsection 4(2)(b), the '979 Patent does not claim the formulation that has
been approved. It claims, rather, a formulation that contains one of the
medical agreements that has been approved. The formulation that has been
approved, that is YAZ, contains two medicinal ingredients. It seems to me that
a mixture containing two medicinal ingredients is different from a mixture that
contains only one medicinal agreement (sic). Medicinal agreements (sic) are
combined to achieve an optimal effect when the drug is delivered to the
patient. Generally speaking, then, a drug with one medicinal ingredient will
have a different effect from a drug where two medicinal ingredients are
combined to achieve the desired affect.
[83]
In Gilead, at paragraph 31, the Court of Appeal speaks of
“beneficial effects” of combining the medicinal ingredients:
31 Finally, the overall inventive step of the '475
Patent, as found by the Judge, is the combination of chemically stable
medicinal ingredients. The '475 Patent emphasizes the beneficial effects of
combining chemically stable combinations of medicinal ingredients.
[84]
With the consent of all Counsel before me, I looked at the patent that
the Court was dealing with in Gilead; Canadian Patent No. 2,512,475 (the
'475 patent). At page 3, that '475 patent states in the “Summary of Invention”:
The composition of tenofovir DF and emtricitabine is both
chemically stable and either synergistic and/or reduces the side effects of one
or both of tenofovir DF and emricitabine.
[85]
However, at page 19, under the title “Administrator of the Formulations”
the '475 patent states:
While it is possible for the active ingredients of the
combination to be administered alone and separately as monotherapies, it is
preferable to administer them as a pharmaceutical co-formulation.
[86]
In the case before me, the Affidavit of ViiV’s expert, Dr. Wainberg,
states that the two medicinal ingredients “retain their independent identities”
He stated at paragraph 81 of his affidavit:
81 As KIVEXA®, abacavir hemisulfate and
lamivudine are presented together in a fixed-dose combination, which provides a
common delivery vehicle for patient convenience and adherence. The fact that
KIVEXA® contains a combination of two medicinal ingredients does not
alter their separate and distinct identity. Rather, they operate as, and are
understood to be, two different medicinal ingredients delivered together in a
single pill. They retain their independent identities and characteristics after
the single pill is ingested. Assuming perfect adherence, taking one KIVEXA®
pill results in the same therapeutic effect as simultaneously taking two 300 mg
ZIAGEN® pills and one 300 mg 3TC® pill.
[87]
However, ViiV has asserted another patent against Teva; Canadian Patent
No. 2,216,634, which is not the subject of a listing challenge. (The Teva
evidence, including this patent is, by agreement, part of the record in the
Apotex appeals; however, this patent has not been asserted against Apotex).
That patent claims the combination of the same two medicines as found in the
ViiV NOC at issue against Teva. At page 6 of the '634 patent, it speaks of the
synergistic effects of combining the two medicinal ingredients:
It will be appreciated that the compounds of the combination
may be administered simu1taneously, either in the same or different
pharmaceutical formulation or sequentially. If there is sequential administration,
the delay in administering the second and third active ingredient should not be
such as to lose the benefit of a synergistic therapeutic effect of the
combination of the active ingredients. It will also be understood that 1592U89,
zidovudine and 3TC (or, alternatively to 3TC, FTC), or the physiologically
functional derivatives of any thereof, whether presented simultaneously or
sequentially, may be administered individually or in multiples or in any
combination thereof. 1592U89, zidovudine and 3TC [or, alternatively to 3TC, FTC),
are preferably administered simultaneously or sequentially in separate pharmaceutical
formulations, most preferably simultaneously.
. . .
The synergistic effects of the combination of 1592U89, zidovudine
and 3TC (or, alternatively to 3TC, FTC), or a physiologically functional
derivative of any thereof arc seen over a ratio, for example, of 1 to 20: 1 to
20:1 to 10 (by weight) preferably 1 to 10: to 10: 1 to 5 (by weight),
particularly 1 to 3: 1 to 3: 1 to 2 (by weight)
[88]
Counsel for the Minister advised the Court that the Minister’s officials
do not look into the description of a patent claiming several medicines to
determine if a synergistic effect is described. Nor should they; this would
lead to evidence and more evidence as to yes or no as to synergy. The matter
should simply be decided on the claims.
[89]
In my view, it is not productive when considering the listing
requirements of subsection 4(2) of the NOC Regulations to consider
synergy or not. The decision of the Federal Court of Appeal in Gilead is sufficiently clear. A patent claim for only one medicinal ingredient
cannot support a listing under the NOC Regulations where the underlying
NOC is for a combination (synergistic or otherwise) of two or more medicinal
ingredients.
XIII.
CLAIM 32 AND SUBSECTION 4(2)(b)
[90] ViiV in its oral submissions relied solely only claim 2 to submit
the 753 Patent’s eligibility under subsection 4(2)(a) of the NOC Regulations,
and made no submissions on the issue of claim 32 of the 753 Patent and subsection
4(2)(b) of the NOC Regulations. However, ViiV did not disclaim its
written submissions relating to the question of whether claim 32 of the 753
Patent met the product specificity requirements under subsection 4(2)(b) of the
NOC Regulations. I will therefore briefly address this issue based on the
parties’ written submissions.
[91] Trudel JA held in Gilead that the level of product
specificity required under subsection 4(2)(a) equally applies to subsection
4(2)(b) of the NOC Regulations (Paragraphs 27-39, 45). This was the
basis of Prothonotary Milcznyski’s conclusion regarding product specificity for
the purpose of subsection 4(2)(b) and its application to claim 32 of the 753
Patent, which I adopt:
[5]… Although the 753 Patent may
encompass lamivudine as a medicinal ingredient, this does not satisfy the
requirements for listing under either section 4(2)(a) or section 4(2)(b) of the
PMNOC Regulations. It is not sufficient for the purposes of listing that
a patent identify only one of the two (or more) medicinal ingredients identified
in the drug submission in respect of which the NOC was issued. As held by
the Federal Court of Appeal in Gilead Sciences Canada v. Minister of Health, 2012 FCA 254 (CanLII), 2012 FCA 254
(“Gilead”), the medicinal ingredient or formulation approved in the NOC must
“match up” and be claimed in the patent sought to be listed. A high
degree of specificity is required between the patent and the NOC.
However, as noted, the NOC for KIVEXA® is for an abacavir
sulfate/lamivudine tablet, and the 753 Patent claims only the medicinal
ingredient, abacavir sulfate.
…
[28] [i]n the case of KIVEXA®, no claim of the 753 Patent
specifically claims the combination of the two medicinal ingredients that are
the subject of the NOC for KIVEXA®, namely abacavir sulfate and
lamivudine. There is nothing in the 753 Patent that requires
lamivudine. The 753 Patent claims only abacavir in combination with
another unnamed medicinal ingredient. Section 4(2)(a) of the PMNOC
Regulations, as held in Gilead, requires all of the medicinal ingredients
identified in the submission that results in the issuance of the NOC to be
claimed in the patent for that patent to be listed on the Patent Register.
In the same manner, the specific formulation identified in the
submission that led to the issuance of the NOC must be claimed in the
patent. In the case of the 753 Patent, it is not enough that it
encompasses the medicinal ingredient lamivudine (among others) in combination
with abacavir for the purposes of section 4(2)(b) of the Regulations
[emphasis added].
[29] The requisite degree of product specificity is the same for section
4(2)(a) of the PMNOC Regulations as it is for each of sections 4(2)(b), (c) and
(d). The medicinal ingredient, formulation, dosage form or use of the
medicinal ingredient claimed in the patent sought to be listed must match that
in the drug submission that was approved through the issuance of the NOC.
[92] Regarding the last two sentences of paragraph 28 of Prothonotary
Milcznyski’s Reasons, ViiV attempted to distinguish this case from Novartis and
Eli Lilly. As cited above, the Court in Novartis and Eli Lilly,
found the 2,304,819 Patent and the 2,379,329 Patent ineligible for listing under
subsection 4(2)(b) of the NOC Regulations because they failed to claim
tobramycin and milbemycin oxime, respectively. These patents did not explicitly
include those ingredients in the description but made reference to a narrower
sub-class in Novartis, and a general family in Eli Lilly, to
which those ingredients belong.
[93] ViiV submits that those cases did not foreclose the possibility of a
patent’s eligibility under subsection 4(2)(b) of the NOC Regulations
when said patent, such as the 753 Patent, claims one medicinal ingredient,
abacavir sulphate, in combination with one or more therapeutic agents selected
from a group, and specifically names one such therapeutic agents in the
description, lamivudine. On this reasoning, ViiV submits that claim 32 of the
753 Patent is distinguishable from the facts of Novartis and Eli
Lilly and would meet the requisite degree of product specificity under subsection
4(2)(b) of the NOC Regulations.
[94] I prefer Teva and Apotex’s interpretation of the meaning of those
cases in relation to claim 32 of the 753 Patent. In each case the Court found
itself bound by Gilead to hold the patents ineligible for listing
because said patents failed to include in their claim all of the medicinal
ingredients contained in the approved New Drug Submission for which the first
person sought the patent to be listed against: “the relevant claim for
the formulation must be identical to the formulation in the NDS” [emphasis
added] (Novartis, paragraph 59; and Eli Lilly, paragraphs
73, 84-85).
[95] It is worth noting that in oral argument before Prothonotary
Milcznyski and in his written submissions for this appeal, Counsel for the
Minister took the position that subsection 4(2)(b) of the NOC Regulations requires
a patent to claim all of the medicinal ingredients in the approved drug. While
I do not agree with Counsel’s submissions on subsection 4(2)(a) of the NOC
Regulations, I agree with Counsel’s written submission that “a patent for a
formulation that does not explicitly claim a composition containing abacavir
sulfate and lamivudine would not “match” the KIVEXA formulation” (Paragraph 28);
such being the case here.
[96] Therefore, while the 753 Patent explicitly includes lamivudine and
zidovudine in its description, its failure to specifically claim those
ingredients in combination with abacavir sulphate against KIVEXA® and TRIZIVIR®
constitutes a failure to meet the product specificity requirements under subsection
4(2)(b) of the NOC Regulations. For the purpose of subsection 4(2)(b) of
the NOC Regulations, product specificity requires listing in the claim
all of the medicinal ingredients included in the formulation contained in the
approved FDC, and not just in the patent description.
XIV.
CONCLUSION AND COSTS
[97]
In conclusion, I find that Prothonotary Milczynski’s Orders that
Canadian Patent No. 2,289,753 was ineligible for listing on the Patent Register
is correct. The motions, by way of an appeal, will be dismissed.
[98]
Since my Order will, at least in the Apotex proceedings, effectively
terminate the matter, I will stay my Order in each proceeding for thirty days
to permit ViiV to file an appeal, if so advised.
[99]
As to costs, Teva and Apotex were successful. Teva asked for costs fixed
at $10,000.00. I find that sum to be reasonable and will fix costs in that
amount. Apotex’s appeals largely followed Teva. Apotex will get half the costs
allowed to Teva, split between the two Apotex appeals; that is, $2,500.00 in
each appeal.
"Roger T. Hughes"
Toronto, Ontario
September 18, 2014