Amarin Pharma, Inc., Amarin Pharmaceuticals Ireland Limited, Mochida Pharmaceutical… v. Hikma Pharmaceuticals USA Inc., Hikma Pharmaceuticals Plc

United States Court of Appeals
for the Federal Circuit
______________________
AMARIN PHARMA, INC., AMARIN
PHARMACEUTICALS IRELAND LIMITED,
MOCHIDA PHARMACEUTICAL CO., LTD.,
Plaintiffs-Appellants
v.
HIKMA PHARMACEUTICALS USA INC., HIKMA
PHARMACEUTICALS PLC,
Defendants-Appellees
HEALTH NET LLC,
Defendant
______________________
2023-1169
______________________
Appeal from the United States District Court for the
District of Delaware in No. 1:20-cv-01630-RGA-JLH, Judge
Richard G. Andrews.
______________________
Decided: June 25, 2024
______________________
N ATHAN K. K ELLEY , Perkins Coie LLP, Washington,
DC, argued for plaintiffs-appellants. Also represented by
N ATHANAEL D. ANDREWS .
CHARLES B. K LEIN, Winston & Strawn LLP, Washing-
ton, DC, argued for defendants-appellees. Also
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AMARIN PHARMA, INC. v. HIKMA PHARMACEUTICALS USA INC. 2
represented by CLAIRE A. F UNDAKOWSKI; A LISON M ICHELLE
K ING, Chicago, IL; EIMERIC REIG-P LESSIS , San Francisco,
CA.
SARA WEXLER K OBLITZ, Hyman, Phelps & McNamara,
Washington, DC, for amicus curiae Association for Accessi-
ble Medicines.
______________________
Before M OORE, Chief Judge, L OURIE, Circuit Judge, and
ALBRIGHT , District Judge.1
L OURIE, Circuit Judge.
Amarin Pharma, Inc., Amarin Pharmaceuticals Ire-
land Limited, and Mochida Pharmaceutical Co., Ltd. (col-
lectively, “Amarin”) appeal from a decision of the United
States District Court for the District of Delaware granting
Hikma Pharmaceuticals USA Inc.’s and Hikma Pharma-
ceuticals PLC’s (collectively, “Hikma”) motion to dismiss
Amarin’s complaint for failure to state a claim. Amarin
Pharma, Inc. v. Hikma Pharms. USA Inc., 578 F. Supp. 3d
642 (D. Del. 2022) (“Decision”).2 Because Amarin’s allega-
tions against Hikma plausibly state a claim for induced in-
fringement, we reverse.
1 Honorable Alan D Albright, District Judge, United
States District Court for the Western District of Texas, sit-
ting by designation.
2 In the same decision, the court denied Health Net
LLC’s motion to dismiss the complaint for failure to state a
claim for induced infringement. See Decision,
578 F. Supp. 3d at 643. Amarin’s claims against that de-
fendant, which appear to have settled, see J.A. 35, are
therefore not at issue in this appeal.
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AMARIN PHARMA, INC. v. HIKMA PHARMACEUTICALS USA INC. 3
BACKGROUND
I
Amarin markets and sells icosapent ethyl, an ethyl es-
ter of an omega-3 fatty acid commonly found in fish oils,
under the brand name Vascepa ®. In 2012, the U.S. Food
and Drug Administration (“FDA”) approved Vascepa for
the treatment of severe hypertriglyceridemia (“the SH in-
dication”), a condition in which a patient’s blood triglycer-
ide level is at least 500 mg/dL. As part of its labeling for
Vascepa, Amarin included an express “limitation of use,”
disclosing that “[t]he effect of VASCEPA on cardiovascular
mortality and morbidity in patients with severe hypertri-
glyceridemia has not been determined.” J.A. 650 (“the CV
Limitation of Use”). But observing that clinical testing
data demonstrated that Vascepa was capable of lowering
triglyceride levels without increasing “bad” cholesterol (i.e.,
LDL-C), Amarin continued its research into potential car-
diovascular uses of the drug.
In 2019, following the success of Amarin’s additional
research and clinical trials, the FDA approved Vascepa for
a second use: as a treatment to reduce cardiovascular risk
(i.e., myocardial infarction, stroke, coronary revasculariza-
tion, and unstable angina requiring hospitalization) in pa-
tients having blood triglyceride levels of at least 150 mg/dL
(“the CV indication”). Upon receiving that approval, Ama-
rin added the CV indication to its label and removed the
CV Limitation of Use. Compare J.A. 650 (pre-CV indica-
tion approval), and J.A. 663 (same), with J.A. 635 (post-CV
indication approval). It also timely listed U.S. Patent
9,700,537 (“the ’537 patent”) and U.S. Patent 10,568,861
(“the ’861 patent”) (collectively, “the asserted patents”),
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AMARIN PHARMA, INC. v. HIKMA PHARMACEUTICALS USA INC. 4
which each claim methods directed to the CV indication, in
the Orange Book.3
In 2016, when Vascepa was still only approved for the
SH indication, Hikma submitted an Abbreviated New Drug
Application (“ANDA”) for approval of its generic icosapent
ethyl product.4 That ANDA remained pending in 2019
when the FDA approved the use of icosapent ethyl for the
CV indication. At that juncture, Hikma was required to
either amend its proposed label to match the revised
Vascepa label including the CV indication and correspond-
ing information, see 21 U.S.C. § 355(j)(2)(A)(vii), or file a
“section viii statement” to “carve-out” that indication, see
3 The ’537 patent is assigned to Mochida Pharmaceu-
tical Co., Ltd. and exclusively licensed to Amarin Pharma,
Inc. J.A. 512. The ’861 patent is assigned to Amarin Phar-
maceuticals Ireland Limited and exclusively licensed to
Amarin Pharma, Inc. Id. at 513. In its operative com-
plaint, Amarin also asserted U.S. Patent 8,642,077 against
Hikma, but the parties’ dispute as to that patent has been
resolved. See Amarin Br. at 12 n.2.
4 As part of its ANDA, Hikma submitted a para-
graph IV certification averring that Amarin’s then-Orange
Book listed patents directed to the treatment of severe hy-
pertriglyceridemia were invalid or would not be infringed
by the manufacture, use, or sale of Hikma’s generic prod-
uct. See 21 U.S.C. § 355(j)(2)(A)(vii)(IV). Based on the
ANDA filing, Amarin sued Hikma in the United States Dis-
trict Court for the District of Nevada for patent infringe-
ment (“the Nevada litigation”). Following a bench trial,
and subsequent appeal, Amarin’s asserted severe hypertri-
glyceridemia-related patents were held invalid as obvious.
Amarin Pharma, Inc. v. Hikma Pharms. USA Inc.,
449 F. Supp. 3d 967, 1015 (D. Nev.), aff’d summarily,
819 F. App’x 932 (Fed. Cir. 2020). Those patents are there-
fore not at issue here.
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AMARIN PHARMA, INC. v. HIKMA PHARMACEUTICALS USA INC. 5
id. § 355(j)(2)(A)(viii). Hikma opted for the latter and sub-
mitted a statement seeking FDA approval only for uses not
covered by Amarin’s newly listed CV indication patents. In
other words, Hikma sought the FDA’s approval of a “skinny
label” for its generic product that would include only the
SH indication and not the CV indication. The FDA ap-
proved Hikma’s ANDA, including its proposed skinny la-
bel, on May 21, 2020.
Hikma’s approved label refers only to the SH indication
in the “Indications and Usage” section. J.A. 694 (providing
that the drug is indicated only “as an adjunct to diet to re-
duce triglyceride (TG) levels in adult patients with severe
(≥ 500 mg/dL) hypertriglyceridemia”). It further identifies
potential side effects, stating that people with cardiovascu-
lar disease or diabetes with a risk factor for cardiovascular
disease may experience “[h]eart rhythm problems (atrial fi-
brillation and atrial flutter).” Id. at 704–05. And it
acknowledges that “[m]edicines are sometimes prescribed
for purposes other than those listed in a Patient Infor-
mation leaflet.” Id. at 705. Like the current Vascepa label,
Hikma’s approved label does not include the CV Limitation
of Use that was present on the Vascepa label during the
time when icosapent ethyl was approved for only the SH
indication. Compare id. at 694 (Hikma label), and id. at
635 (current Vascepa label), with id. at 650 (Vascepa label
pre-CV indication approval). Although Hikma’s original
proposed label included the CV Limitation of Use, Hikma
later amended the label to remove that limitation around
the same time it submitted its section viii statement carv-
ing out the uses covered by the asserted patents.
Throughout 2020, Hikma issued a series of press re-
leases regarding its efforts to provide a generic icosapent
ethyl product. First, in March, it publicly announced the
favorable district court outcome in the Nevada litigation
against Amarin regarding the SH indication (“the March
2020 Press Release”). J.A. 709; see supra note 4. That
press release referred to Hikma’s product as the “generic
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AMARIN PHARMA, INC. v. HIKMA PHARMACEUTICALS USA INC. 6
version” of Vascepa, which it described as “medicine that is
indicated, in part, [to treat] severe (≥ 500 mg/dL) hypertri-
glyceridemia.” J.A. 709. It also provided sales data for
Vascepa, stating that sales of the product in the United
States “were approximately $919 million in the 12 months
ending February 2020.” Id.
Then, the day after the FDA granted Hikma’s ANDA,
Hikma issued a press release announcing the approval
(“the May 2020 Press Release”). Id. at 613. The press re-
lease stated that Hikma had received FDA approval for its
icosapent ethyl tablets, “the generic equivalent to
Vascepa®.” Id. It further included a quote from Hikma’s
President of Generics that “[t]he approval for our generic
version of Vascepa® is an important milestone towards
bringing this product to market.” Id.
A little over three months later, on September 3, 2020,
Hikma issued a press release announcing the positive out-
come in the appeal of the Nevada litigation regarding its
alleged infringement of Amarin’s SH indication patents
(“the September 2020 Press Release”). J.A. 712; see supra
note 4. Similar to the prior press releases, the September
2020 Press Release referred to Hikma’s product as
“Hikma’s generic version of Vascepa®” and “generic
Vascepa®.” J.A. 712. And, like the March 2020 Press Re-
lease, it further provided the following description of
Vascepa:
Vascepa® is a prescription medicine that is indi-
cated, in part, as an adjunct to diet to reduce tri-
glyceride levels in adult patients with severe (≥ 500
mg/dL) hypertriglyceridemia. According to IQVIA,
US sales of Vascepa® were approximately $1.1 bil-
lion in the 12 months ending July 2020.
Id. The $1.1 billion referenced in the press release (and the
$919 million referenced in the March 2020 Press Release)
accounted for sales of Vascepa for all uses, including the
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AMARIN PHARMA, INC. v. HIKMA PHARMACEUTICALS USA INC. 7
CV indication, which undisputedly made up more than
75% of the drug’s sales.
Hikma issued a final press release upon its official
launch of its generic product (“the November 2020 Press
Release”). J.A. 715. That press release stated:
Hikma’s FDA-approved Icosapent Ethyl Capsule
product is indicated for the following indication: as
an adjunct to diet to reduce triglyceride levels in
adult patients with severe (≥ 500 mg/dL) hypertri-
glyceridemia. Hikma’s product is not approved for
any other indication for the reference listed drug
VASCEPA®.
Id.
Following the approval of its ANDA, Hikma also began
marketing its product on its website. There, Hikma listed
its generic icosapent ethyl capsules in the “Therapeutic
Category: Hypertriglyceridemia” and indicated that it was
“AB” rated. J.A. 820. That rating, developed and assigned
by the FDA, reflects the FDA’s determination that a ge-
neric drug is therapeutically equivalent to a branded drug
when the generic drug is used as labeled. It does not reflect
a decision of therapeutic equivalence for off-label use. Be-
low the product summary on the website, in small letter-
ing, is a disclaimer that reads: “Hikma’s generic version is
indicated for fewer than all approved indications of the Ref-
erence Listed Drug.” Id.
II
In November 2020, less than a month after Hikma
launched its generic icosapent ethyl product, Amarin sued
under 35 U.S.C. § 271(b), alleging that Hikma had induced
infringement of at least claim 1 of the ’537 patent, and at
least claims 1 and 2 of the ’861 patent. Claim 1 of the ’537
patent recites:
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AMARIN PHARMA, INC. v. HIKMA PHARMACEUTICALS USA INC. 8
1. A method of reducing occurrence of a cardiovas-
cular event in a hypercholesterolemia patient
consisting of:
identifying a patient having triglycerides (TG)
of at least 150 mg/DL and HDL-C of less than
40 mg/dL in a blood sample taken from the pa-
tient as a risk factor of a cardiovascular event,
wherein the patient has not previously had a
cardiovascular event, and administering ethyl
icosapentate in combination with a 3-hydroxy-
3-methylglutaryl coenzyme A reductase inhibi-
tor,
wherein said 3-hydroxyl-3-methylglutaryl coen-
zyme A reductase inhibitor is administered to
the patient at least one of before, during and af-
ter administering the ethyl icosapentate; and
wherein the 3-hydroxy-3-methylglutaryl coen-
zyme A reductase inhibitor is selected from the
group consisting of pravastatin, lovastatin,
simvastatin, fluvastatin, atorvastatin, pitavas-
tatin, rosuvastatin, and salts thereof, and
wherein daily dose of the 3-hydroxy-3-methyl-
glutaryl coenzyme A reductase inhibitor are 5 to
60 mg for pravastatin, 2.5 to 60 mg for simvas-
tatin, 10 to 180 mg for fluvastatin sodium, 5 to
120 mg for atorvastatin calcium hydrate, 0.5 to
12 mg for pitavastatin calcium, 1.25 to 60 mg
for rosuvastatin calcium, 5 to 160 mg for lovas-
tatin, and 0.075 to 0.9 mg for cerivastatin so-
dium.
’537 patent, col. 15, l. 64–col. 16, l. 22.
Claims 1 and 2 of the ’861 patent recite:
1. A method of reducing risk of cardiovascular
death in a subject with established
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AMARIN PHARMA, INC. v. HIKMA PHARMACEUTICALS USA INC. 9
cardiovascular disease, the method comprising
administering to said subject about 4 g of ethyl
icosapentate per day for a period effective to re-
duce risk of cardiovascular death in the subject.
2. The method of claim 1, wherein the subject has
a fasting baseline triglyceride level of about 135
mg/dL to about 500 mg/dL and a fasting base-
line LDL-C level of about 40 mg/dL to about 100
mg/dL.
’861 patent, col. 45, ll. 49–57.5
According to Amarin, the content of Hikma’s press re-
leases, website, and product label evidence Hikma’s spe-
cific intent to actively encourage physicians to directly
infringe the asserted patents by prescribing its generic
icosapent ethyl product for the off-label CV indication, an
indication for which Hikma did not get FDA approval.
Hikma moved to dismiss under Federal Rule of Civil Pro-
cedure 12(b)(6), arguing that Amarin had failed, as a mat-
ter of law, to allege facts that Hikma had taken active steps
to specifically encourage infringement.
The district court referred the case to a magistrate
judge, who recommended denying the motion. Amarin
Pharma, Inc. v. Hikma Pharms. USA Inc., No. 20-1630,
2021 WL 3396199 (D. Del. Aug. 3, 2021) (“Report & Recom-
mendation”). The magistrate judge concluded that, based
on the totality of the allegations, which relied not only on
the content of the skinny label but also Hikma’s press
5 At oral argument, counsel for Amarin noted that
the parties had agreed that the preamble of the asserted
claims was limiting, such that infringement of the claims
requires use of icosapent ethyl to reduce cardiovascular
risk. Oral Arg. 31:13–23, available at https://oralargu-
ments.cafc.uscourts.gov/default.aspx?fl=23-1169_0402202
4.mp3.
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AMARIN PHARMA, INC. v. HIKMA PHARMACEUTICALS USA INC. 10
releases and website, Amarin had “pleaded an inducement
claim . . . that is at least plausible.” Id. at *8. Specifically,
she noted that, “notwithstanding the lack of an express in-
struction regarding the CV indication in the ‘Indications
and Usage’ section of Hikma’s label, several other portions
of Hikma’s label, taken together with Hikma’s public state-
ments, instruct physicians to use Hikma’s product in a way
that infringes the asserted patents.” Id. at *6. She there-
fore rejected Hikma’s attempt to resolve the case at the
pleadings stage where there was “a real dispute about what
[Hikma’s public statements and label] communicate to oth-
ers.” Id. at *8. Hikma timely objected to the magistrate
judge’s recommendation.
On de novo review, the district court declined to adopt
the magistrate judge’s recommendation and granted
Hikma’s motion to dismiss. Decision, 578 F. Supp. 3d at
643–44. The district court separated Amarin’s allegations
into two categories—Hikma’s label and Hikma’s public
statements—addressing each separately. See id. at
645–47.
With respect to Hikma’s label, the district court con-
cluded that the warning as to side effects for patients with
cardiovascular disease was “hardly instruction or encour-
agement” to prescribe the drug for the CV indication. Id.
at 646. It was similarly unpersuaded by Amarin’s allega-
tion that Hikma’s removal of the CV Limitation of Use
would be understood by physicians as an indication that
Hikma’s product had been shown to reduce cardiovascular
risk and to encourage its use for that purpose. Id. The
court concluded as a matter of law that “[e]ven if [Amarin
is] right that Hikma’s label’s silence regarding CV risk re-
duction communicates to the public that icosapent ethyl
can be used to reduce CV risk, ‘merely describing an in-
fringing mode is not the same as recommending, encourag-
ing, or promoting an infringing use.’” Id. (quoting, with
alterations, Takeda Pharms. U.S.A., Inc. v. W.-Ward
Pharm. Corp., 785 F.3d 625, 631 (Fed Cir. 2015)). The
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AMARIN PHARMA, INC. v. HIKMA PHARMACEUTICALS USA INC. 11
district court therefore found that Hikma’s label does not
plausibly induce infringement. Id.
Turning to Hikma’s public statements, the district
court concluded that, although the press releases may be
relevant to Hikma’s intent to induce infringement, they did
not plausibly evidence “an inducing act,” a separate ele-
ment for a claim arising under § 271(b). Id. at 647. And
with respect to the website, the court determined that
Hikma’s advertisement of its product as AB-rated in the
therapeutic category “Hypertriglyceridemia”—which the
court accepted as broad enough to include infringing
uses—did not “rise to the level of encouraging, recommend-
ing, or promoting taking Hikma’s generic for the reduction
of CV risk.” Id. (comparing GlaxoSmithKline LLC v. Teva
Pharms. USA, Inc., 7 F.4th 1320, 1336 (Fed. Cir. 2021) (per
curiam) (“GSK”), with Grunenthal GMBH v. Alkem Lab’ys
Ltd., 919 F.3d 1333, 1339 (Fed. Cir. 2019)).
Because it found that Amarin’s complaint failed to
plead inducement based on either Hikma’s label or public
statements, the district court granted Hikma’s motion to
dismiss. Id. at 648.
Amarin timely appealed. We have jurisdiction under
28 U.S.C. § 1295(a)(1).
D ISCUSSION
We review a district court’s grant of a motion to dismiss
for failure to state a claim under the law of the regional
circuit. Yu v. Apple Inc., 1 F.4th 1040, 1042 (Fed. Cir.
2021). Under Third Circuit law, we review such dismissals
de novo, accepting all well-pleaded factual allegations as
true and drawing all reasonable inferences from such alle-
gations in favor of the complainant. See Matrix Distribu-
tors, Inc. v. Nat’l Ass’n of Boards of Pharmacy, 34 F.4th
190, 195 (3d Cir. 2022). “We may affirm only if it is certain
no relief could be granted under any set of facts that could
be proven.” Warden v. McLelland, 288 F.3d 105, 110 (3d
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AMARIN PHARMA, INC. v. HIKMA PHARMACEUTICALS USA INC. 12
Cir. 2002). We apply our own law, however, with respect
to patent law issues. Midwest Indus., Inc. v. Karavan
Trailers, Inc., 175 F.3d 1356 (Fed. Cir. 1999) (en banc in
relevant part).
I
We begin by noting what this case is not.
Unlike the earlier Nevada litigation between the par-
ties, this appeal is not a Hatch-Waxman case arising under
35 U.S.C. § 271(e)(2)(A), in which the alleged act of in-
fringement was Hikma’s submission of its ANDA. That is,
this is not a traditional “ANDA case” in which the patent
owner seeks to establish that if a generic manufacturer’s
drug is put on the market, it would infringe the asserted
patent. See, e.g., Genentech, Inc. v. Sandoz Inc., 55 F.4th
1368, 1379 (Fed. Cir. 2022); Grunenthal, 919 F.3d at 1337;
Vanda Pharms. Inc. v. W.-Ward Pharms. Int’l Ltd.,
887 F.3d 1117, 1130 (Fed. Cir. 2018) (“A § 271(e)(2)(A) in-
fringement suit differs from typical infringement suits in
that the infringement inquiries are hypothetical because
the allegedly infringing product has not yet been mar-
keted.” (internal quotation marks and citation omitted)).
Unlike those cases, Hikma’s ANDA has already been ap-
proved by the FDA and Hikma has already launched its
generic product.
Furthermore, this is not a section viii case in which the
patent owner’s claims rest solely on allegations that the ge-
neric manufacturer’s proposed label is “not skinny
enough,” such that the label alone induces infringement.
See, e.g., H. Lundbeck A/S v. Lupin Ltd., 87 F.4th 1361,
1370 (Fed. Cir. 2023); HZNP Meds. LLC v. Actavis Lab’ys
UT, Inc., 940 F.3d 680, 699 (Fed. Cir. 2019); see also
Takeda, 785 F.3d at 630. Rather, the allegations of the
complaint transform this case from a pre-approval, label-
only induced infringement claim to one where the alleged
infringement is based on the generic manufacturer’s
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AMARIN PHARMA, INC. v. HIKMA PHARMACEUTICALS USA INC. 13
skinny label as well as its public statements and marketing
of its already-approved generic product.
Put otherwise, although this case has underlying fea-
tures of a traditional Hatch-Waxman case, at bottom, it is
nothing more than a run-of-the-mill induced infringement
case arising under 35 U.S.C. § 271(b). In such a case, we
review the allegations of inducement as a whole, not piece-
meal. Accordingly, we must consider whether the totality
of the allegations, taken as true, plausibly plead that
Hikma induced infringement. See GSK, 7 F.4th at 1338
(concluding that a skinny label, in combination with mar-
keting materials and press releases, provided substantial
evidence to support a jury verdict of induced infringement);
Broadcom Corp. v. Qualcomm Inc., 543 F.3d 683, 700 (Fed.
Cir. 2008) (affirming a jury instruction to consider “all of
the circumstances” relevant to the alleged induced in-
fringement and concluding that “[t]aken as a whole,” the
record provided substantial evidence to support the jury
verdict).
And critically, unlike any of our section viii-related de-
cisions, this case does not reach us on an appeal from a
post-trial motion, see, e.g., GSK, 7 F.4th at 1323, an entry
of judgment following a bench trial, see, e.g., H. Lundbeck,
87 F.4th at 1368; Grunenthal, 919 F.3d at 1338, a sum-
mary judgment motion, see, e.g., HZNP, 940 F.3d at 699, or
any other motion in which the parties (and court) have the
benefit of discovery. Nor does it reach us on a denial of a
preliminary injunction, which we would review for an
abuse of discretion. See Takeda, 785 F.3d at 629.
Instead, this case reaches us at its most nascent stage:
on a motion to dismiss under Federal Rule of Civil Proce-
dure 12(b)(6), where we are tasked with reviewing allega-
tions, not findings, for plausibility, not probability. See Bell
Atl. Corp. v. Twombly, 550 U.S. 544, 556 (2007) (“[A] well-
pleaded complaint may proceed even if it strikes a savvy
judge that actual proof of those facts is improbable, and
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AMARIN PHARMA, INC. v. HIKMA PHARMACEUTICALS USA INC. 14
that a recovery is very remote and unlikely.” (internal quo-
tation marks and citation omitted)). Accordingly, while our
prior Hatch-Waxman and section viii cases are informative
to the unique issues presented here, none is dispositive.
With those principles in mind, we proceed to the mer-
its.
II
“Whoever actively induces infringement of a patent
shall be liable as an infringer.” 35 U.S.C. § 271(b). To state
a claim for induced infringement, a patent owner must
plausibly allege facts establishing that there has been di-
rect infringement by a third party and that the alleged in-
fringer affirmatively induced that infringement with
knowledge that the induced acts constituted patent in-
fringement. See Power Integrations, Inc. v. Fairchild Sem-
iconductor Int’l, Inc., 843 F.3d 1315, 1332 (Fed. Cir. 2016);
DSU Med. Corp. v. JMS Co., 471 F.3d 1293, 1304 (Fed. Cir.
2006) (en banc in relevant part) (“[I]f an entity offers a
product with the object of promoting its use to infringe, as
shown by clear expression or other affirmative steps taken
to foster infringement, it is then liable for the resulting acts
of infringement by third parties.”). As relevant here, a ge-
neric manufacturer can be liable for inducing infringement
of a patented method even if it has attempted to “carve out”
the patented indications from its label under 21 U.S.C.
§ 355(j)(2)(A)(viii), where, as here, other evidence is as-
serted with regard to inducement. See GSK, 7 F.4th at
1338.
For purposes of this appeal, it is undisputed that Ama-
rin’s complaint sufficiently alleges (1) that healthcare pro-
viders directly infringe the asserted patents by prescribing
Hikma’s generic icosapent ethyl product for the off-label
CV indication, and (2) that Hikma had the requisite intent
and knowledge to induce that infringement. See Decision,
578 F. Supp. 3d at 647 (“Hikma’s press releases might be
relevant to intent but . . . . [i]ntent alone is not enough;
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AMARIN PHARMA, INC. v. HIKMA PHARMACEUTICALS USA INC. 15
Amarin must plead an inducing act.”); Oral Arg. at
11:36–47 (counsel for Hikma emphasizing that “[t]he Pa-
tent Act does not impose liability for inferred inducement.
The statute expressly requires actively induced infringe-
ment.”); see generally Hikma’s Mot. Dismiss, J.A. 948–67
(arguing only that Amarin fails to allege that Hikma “ac-
tively” induced infringement).
We therefore focus narrowly on the question whether
Amarin’s complaint plausibly pleads that Hikma “actively”
induced healthcare providers’ direct infringement, i.e., that
Hikma “encourage[d], recommend[ed], or promote[d] in-
fringement.” Takeda, 785 F.3d at 631. Accepting all well-
pleaded facts as true and drawing all reasonable inferences
in Amarin’s favor, we conclude that it does.
As an initial matter, it is undisputed that the “Indica-
tions & Usage” section of Hikma’s label does not provide an
implied or express instruction to prescribe the drug for the
CV indication. J.A. 694. Notwithstanding that fact, Ama-
rin alleges that other portions of the label, such as the clin-
ical studies section, which describes statin-treated patients
with the same cardiovascular event history and lipid levels
covered by the asserted patents, id. at 702, would be un-
derstood by physicians as a teaching that the product could
be prescribed to treat cardiovascular risk. Id. at 534–36.
That is particularly so because, as Amarin alleges, the pa-
tient population for the SH indication (i.e., triglyceride lev-
els ≥500 mg/dL) overlaps with that for the CV indication
(i.e., triglyceride levels ≥150 mg/dL). Id. at 803. Amarin
further argues that while the FDA’s approval of the CV in-
dication allowed Amarin to remove the CV Limitation of
Use from its label, it did not so authorize Hikma. See id.
at 528. That is, the complaint alleges that Hikma’s re-
moval of the CV Limitation of Use (despite not being ap-
proved for the CV Indication), as well as its warning of
potential side effects for patients with cardiovascular dis-
ease, communicate to physicians that Hikma’s generic
product could be used for the off-label CV indication. In
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AMARIN PHARMA, INC. v. HIKMA PHARMACEUTICALS USA INC. 16
Amarin’s view, the absence of the CV Limitation of Use is
particularly notable because other drugs approved for only
the SH indication, e.g., Lovaza ®, do contain the CV Limita-
tion of Use. Id. at 516.
Hikma counters that none of the portions of the label
relied upon by Amarin plausibly supports the element of
active inducement. In its view, Amarin’s case relies on the
absence of language discouraging infringement, which is
contrary to law. Hikma Br. at 26–28 (citing Takeda,
785 F.3d at 632 n.4). According to Hikma, it only removed
the CV Limitation of Use from its draft label to comply with
requirements that a generic label be “the same as the la-
beling approved for the listed drug.” 21 U.S.C.
§ 355(j)(2)(A)(v). Its silence as to the product’s effect on
cardiovascular risk, Hikma argues, therefore cannot plau-
sibly instruct infringement. Hikma further takes issue
with Amarin’s reliance on the clinical studies and warning
regarding side effects in patients with cardiovascular dis-
ease, arguing that Hikma’s position that such information
would encourage a physician to prescribe the drug for the
CV indication is implausible and “borderline frivolous.”
Hikma Br. at 28–30.
Taken on its own, we may agree with the district court
(and Hikma) that the label does not, as a matter of law,
“recommend[], encourag[e], or promot[e] an infringing
use.” Decision, 578 F. Supp. 3d at 646 (quoting Takeda,
785 F.3d at 631). Indeed, even the magistrate judge, who
recommended denying Hikma’s motion to dismiss, con-
cluded that, “were [Amarin’s] allegations based solely on
the label, [Amarin’s] inducement theory might lack merit
as a matter of law.” Report & Recommendation, 2021 WL
3396199, at *7. But, as the magistrate judge correctly ob-
served, Amarin’s theory of induced infringement is not
based solely on the label. Id.; Oral Arg. at 2:15–20 (counsel
for Amarin explaining that “our case is not about the label
standing alone, but to be clear, we do rely on portions of the
label”). Rather, it is based on the label in combination with
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AMARIN PHARMA, INC. v. HIKMA PHARMACEUTICALS USA INC. 17
Hikma’s public statements and marketing materials. We
therefore turn to those materials.
Hikma’s website promotes its product as AB-rated (i.e.,
therapeutically equivalent for only the labeled indications)
in the therapeutic category “Hypertriglyceridemia,” a cate-
gory that we accept, at this stage, as broad enough to en-
compass both infringing and non-infringing uses. See
J.A. 532. On the other hand, Hikma’s press releases, at
least prior to November 2020, consistently referred to
Hikma’s product as a “generic equivalent to Vascepa®,”
“generic Vascepa®,” or “Hikma’s generic version of
Vascepa®,” without any indication that its product was
AB-rated. Id. at 613, 709, 712. And the press releases fur-
ther referred to Vascepa as indicated “in part” for the SH
indication. Id. at 709, 712. Together, those statements,
according to Amarin, “made clear that Vascepa® was indi-
cated for more than one use and then identified its own
product as a generic version of Vascepa®.” Amarin Br. at
15. Further, the complaint alleges that, in its press re-
leases, Hikma touted sales figures for Vascepa that Hikma
knew were largely attributable to the off-label CV indica-
tion. J.A. 529, 531. Indeed, the complaint cites Hikma’s
own demonstrative from the Nevada litigation showing
that at least 75% of sales of Vascepa were for the patented
CV indication. Id. at 529 (citing id. at 803).
Those allegations, taken together with those relating
to Hikma’s label, at least plausibly state a claim for in-
duced infringement. As Amarin notes, and the magistrate
judge observed, many of the allegations depend on what
Hikma’s label and public statements would communicate
to physicians and the marketplace. See Amarin Br. at
39–41. As we observed in GSK, that is a question of
fact—not law—and is therefore not proper for resolution on
a motion to dismiss. See 7 F.4th at 1330 (“Critically, the
district court erred by treating this fact question—whether
the [approved] indication instructs a physician to prescribe
[the drug] for a claimed use—as though it were a legal one
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AMARIN PHARMA, INC. v. HIKMA PHARMACEUTICALS USA INC. 18
for it to decide de novo.”). Hikma disagrees, arguing that
the factual contents of Hikma’s label and public statements
are undisputed, such that we can resolve this case as a mat-
ter of law, just as we have when disposing of other, similar
inducement claims. Hikma Br. at 47 (citing HZNP,
940 F.3d at 701). We are unpersuaded.
As noted above, HZNP was a label-only case. See
940 F.3d at 702. Furthermore, and critically, that case was
resolved at summary judgment, where the parties and
court had the benefit of fact discovery and expert testi-
mony. See id. Here, without such discovery and testimony,
we must accept as true Amarin’s allegations and all rea-
sonable inferences supported by those allegations. Apply-
ing this standard of review, we find it at least plausible
that a physician could read Hikma’s press releases—tout-
ing sales figures attributable largely to an infringing use,
and calling Hikma’s product the “generic version” of a drug
that is indicated “in part” for the SH indication—as an in-
struction or encouragement to prescribe that drug for any
of the approved uses of icosapent ethyl, particularly where
the label suggests that the drug may be effective for an
overlapping patient population. Further, it is at least plau-
sible that a physician may recognize that, by marketing its
drug in the broad therapeutic category of “Hypertriglycer-
idemia” on its website, Hikma was encouraging prescribing
the drug for an off-label use. To be sure, the website clearly
labels the drug as AB-rated, indicating generic equivalence
for only labeled uses.6 But we decline to hold, at this stage,
that one notation of the AB rating on Hikma’s web-
site—and nowhere else—insulates it from a claim for in-
duced infringement, particularly where we have upheld
6 And, as noted above, the website includes an ex-
press disclaimer that Hikma’s product is FDA-approved for
fewer than all uses of Vascepa.
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AMARIN PHARMA, INC. v. HIKMA PHARMACEUTICALS USA INC. 19
jury verdicts based, in part, on marketing materials con-
taining similar language. See GSK, 7 F.4th at 1335–36.
Hikma challenges Amarin’s reliance on GSK, arguing
that in that case we expressly declined to hold that calling
a product a “generic version” or a “generic equivalent” is
enough for induced infringement. 7 F.4th at 1336 (“The
dissent criticizes our analysis, claiming that we have weak-
ened intentional encouragement because ‘simply calling a
product a “generic version” or “generic equivalent”—is now
enough.’ That is not our holding or the facts.” (internal ci-
tation omitted)). In Hikma’s view, a reversal in this case
would run afoul of that clear limitation of GSK and would
realize the concerns raised in its dissent. We disagree. Not
only does this case differ procedurally from GSK (which
was decided on a post-trial motion for judgment as a matter
of law), but it also differs factually. There, we held that
substantial evidence supported the jury’s finding that the
generic manufacturer’s label had unsuccessfully carved out
the patented use. See id. at 1338. Accordingly, because the
label itself taught an infringing use, it was reasonable for
the jury to find that the generic manufacturer’s marketing
of its product as an “AB rated generic equivalent” encour-
aged physicians to prescribe the drug for the infringing use
instructed by the label. Id. at 1335–36.
Those, however, are not the facts of this case. Hikma’s
press releases do not refer to its product as AB-rated. If
they had, Hikma’s distinction of GSK may have been more
persuasive as even Amarin seems to agree that the label
alone does not instruct infringement. Instead, Hikma’s
press releases broadly refer to the product as a “generic
version” of Vascepa and provide usage information and
sales data for the brand-name drug from which it is plau-
sible that a physician could discern an encouragement to
use the generic for purposes beyond the approved SH indi-
cation. This conclusion—that the totality of the allegations
plausibly states a claim for induced infringement—does
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AMARIN PHARMA, INC. v. HIKMA PHARMACEUTICALS USA INC. 20
not evoke the concern espoused by the dissent in GSK,
much less hold, that a mere statement that a generic man-
ufacturer’s product is the “generic version” of a brand-name
drug is enough to be liable for induced infringement. Nor
does it run afoul of our observation in GSK that “generics
could not be held liable for merely marketing and selling
under a ‘skinny’ label omitting all patented indications, or
for merely noting (without mentioning any infringing uses)
that FDA had rated a product as therapeutically equiva-
lent to a brand-name drug.” Id. at 1326. Amarin has
pleaded that Hikma did much more than call its product a
“generic version” of Vascepa. Taking those allegations as
true, Hikma has neither “merely” marketed its drug under
a skinny label that omits all patented indications nor
“merely” noted that the FDA has rated its drug as AB-
rated. Though the merits of Amarin’s allegations have not
yet been tested or proven, we cannot say at this stage that
those allegations are not at least plausible.
Finally, we reject Hikma’s inflated characterizations
that a reversal in this case would “effectively eviscerate
section viii carve-outs.” Hikma Br. at 48; Oral Arg. at
20:10–26 (counsel for Hikma asserting that “the entire in-
dustry is watching this case. It’s a test case . . . . And if
merely calling a generic product a ‘generic version’ is suffi-
cient to get past the pleading stage, section viii is dead.”).
Our holding today is limited to the allegations before us
and guided by the standard of review appropriate for this
stage of proceedings. We continue to acknowledge, as we
did in GSK, that there is a “careful balance struck by the
Hatch-Waxman Act regarding section viii carve-outs.”
7 F.4th at 1326. That balance benefits both brand manu-
facturers and generic manufacturers alike. What we can
also say is that clarity and consistency in a generic manu-
facturer’s communications regarding a drug marketed un-
der a skinny label may be essential in avoiding liability for
induced infringement. Here, because Amarin has plausi-
bly pleaded that, despite its section viii carve-out, Hikma
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AMARIN PHARMA, INC. v. HIKMA PHARMACEUTICALS USA INC. 21
has induced infringement of the asserted patents, Hikma
is not entitled, at least at this stage, to benefit from that
balance.
CONCLUSION
For the foregoing reasons, we hold that Amarin has
plausibly pleaded that Hikma has induced infringement of
the asserted patents. We therefore reverse.
REVERSED
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