U.S. FDA Approves ELIQUIS® (apixaban) to Reduce the Risk of Stroke and Systemic Embolism in Patients with Nonvalvular Atrial Fibrillation
ELIQUIS Demonstrated Superior Risk Reductions Versus Warfarin in
Three Key Outcomes—Stroke and Systemic Embolism, Major Bleeding and
All-Cause Mortality—for Patients with Nonvalvular Atrial Fibrillation
Bristol-Myers Squibb Company (NYSE: BMY) and Pfizer Inc. (NYSE: PFE)
announced that the U.S. Food and Drug Administration (FDA) approved
ELIQUIS® (apixaban) to reduce the risk of stroke and systemic
embolism in patients with nonvalvular atrial fibrillation. Atrial
fibrillation, the most common type of irregular heartbeat, affects
approximately 5.8 million people in the U.S., and results in a five
times greater risk of stroke. In the U.S., 15 percent of strokes are
attributable to atrial fibrillation.
“The approval of ELIQUIS offers patients with nonvalvular atrial
fibrillation a novel treatment option for reducing the risk of stroke,”
said Lamberto Andreotti, chief executive officer, Bristol-Myers Squibb.
“ELIQUIS is the result of leading scientific innovation and the shared
vision of our alliance to introduce a new oral anticoagulant for
patients with nonvalvular atrial fibrillation in the U.S.”
Ian Read, chairman and chief executive officer, Pfizer Inc. said, “The
profile of ELIQUIS, combined with the strong legacy and complementary
capabilities that Pfizer and Bristol-Myers Squibb have in the
cardiovascular space, positions us well to deliver this important new
treatment option to patients and health care professionals.”
The ELIQUIS clinical trial program is the largest completed clinical
development program designed to evaluate risk reduction of stroke or
systemic embolism in nonvalvular atrial fibrillation patients; it
included two landmark Phase 3 studies -- ARISTOTLE and AVERROES -- in
patients with nonvalvular atrial fibrillation and at least one
additional risk factor for stroke. ARISTOTLE evaluated ELIQUIS versus
warfarin in 18,201 patients with nonvalvular atrial fibrillation who
were suitable for warfarin therapy, and AVERROES evaluated ELIQUIS
versus aspirin in 5,598 patients with nonvalvular atrial fibrillation
who were considered unsuitable for treatment with warfarin.
The Full Prescribing Information for ELIQUIS includes a Boxed Warning
for patients who discontinue treatment. Patients on ELIQUIS who
discontinue treatment are at an increased risk of thrombotic events. An
increased rate of stroke was observed following discontinuation of
ELIQUIS in clinical trials in patients with nonvalvular atrial
fibrillation. If anticoagulation with ELIQUIS must be discontinued for a
reason other than pathological bleeding, coverage with another
anticoagulant should be strongly considered.
ELIQUIS increases the risk of bleeding and can cause serious,
potentially fatal bleeding. Please see additional Important Safety
Information included in this release.
“With a population that is living longer, the prevalence of nonvalvular
atrial fibrillation is increasing, but many patients are still not being
managed effectively with warfarin,” said Christopher Granger, M.D.,
Professor of Medicine, Duke Clinical Research Institute, Duke University
Medical Center, Durham, N.C., ARISTOTLE lead investigator. “ELIQUIS
represents a significant advance over warfarin for health care
professionals to reduce the risk of stroke in patients with nonvalvular
atrial fibrillation.”
ELIQUIS is an oral Factor Xa inhibitor anticoagulant. By inhibiting
Factor Xa, a key blood clotting protein, ELIQUIS decreases thrombin
generation and blood clot formation.ELIQUIS does not require
routine monitoring using International Normalized Ratio (INR) or other
tests of coagulation and there are no known dietary restrictions.
ELIQUIS can be taken with or without food.
ELIQUIS is expected to be widely available in the U.S. by the end of
January 2013.
Efficacy and Safety Profile of ELIQUIS in Patients with Nonvalvular
Atrial Fibrillation
The ARISTOTLE (Apixaban for Reduction in Stroke and Other Thromboembolic
Events in Atrial Fibrillation) study was designed to compare the effects
of ELIQUIS and warfarin on the risk of stroke and systemic embolism. In
ARISTOTLE, 18,201 patients were randomized (9,120 patients to ELIQUIS
and 9,081 to warfarin) and were followed for a median of 1.7 years.
ARISTOTLE was a double-blind, multi-national trial in patients with
nonvalvular atrial fibrillation, and one or more of the following
additional risk factors for stroke: prior stroke or transient ischemic
attack, prior systemic embolism, age ≥75 years, arterial hypertension
requiring treatment, diabetes mellitus, heart failure ≥New York Heart
Association Class 2, or left ventricular ejection fraction ≤40%.
Patients received treatment with ELIQUIS 5 mg orally twice daily (or 2.5
mg twice daily in patients with at least 2 of the following
characteristics: age ≥80 years, body weight ≤60 kg, or serum creatinine
≥1.5 mg/dL) or warfarin (target INR range 2.0-3.0).
ELIQUIS is the only oral anticoagulant to demonstrate superior risk
reductions versus warfarin in three key outcomes—stroke and systemic
embolism, major bleeding, and all-cause mortality—for patients with
nonvalvular atrial fibrillation.
In ARISTOTLE, ELIQUIS was superior to warfarin in the primary efficacy
endpoint of stroke or systemic embolism, with a 21% relative risk
reduction beyond warfarin (1.27%/year versus 1.60%/year, HR=0.79,
p=0.01). Superiority to warfarin was primarily attributable to a
reduction in hemorrhagic stroke and ischemic stroke that converted to
hemorrhagic stroke. Purely ischemic strokes occurred with similar rates
on both drugs.
ELIQUIS was superior to warfarin for the primary safety endpoint of
major bleeding, with a 31% relative risk reduction (2.13%/year versus
3.09%/year, HR=0.69, p<0.0001). Major bleeding was defined as clinically
overt bleeding that was accompanied by one or more of the following: a
decrease in hemoglobin of 2 g/dL or more; a transfusion of 2 or more
units of packed red blood cells; bleeding that occurred in at least one
of the following critical sites: intracranial, intraspinal, intraocular,
pericardial, intra-articular, intramuscular with compartment syndrome,
retroperitoneal; or bleeding that was fatal.
The incidence of major gastrointestinal (GI) bleeds was lower with
ELIQUIS compared to warfarin (0.83%/year versus 0.93%/year, HR=0.89
[CI=0.70, 1.14]). GI bleed includes upper GI, lower GI, and rectal
bleeding. ELIQUIS demonstrated a significant reduction in intracranial
hemorrhage versus warfarin with a 59% relative risk reduction
(0.33%/year versus 0.82%/year, HR=0.41 [CI=0.30, 0.57]). Intracranial
hemorrhage included intracerebral (hemorrhagic stroke), subarachnoid,
and subdural bleeds. The incidence of major intraocular bleeding was
numerically higher with ELIQUIS compared to warfarin (0.21%/year versus
0.14%/year, HR=1.42 [CI=0.83, 2.45]). Intraocular bleed is within the
corpus of the eye (a conjunctival bleed is not an intraocular bleed).
ELIQUIS demonstrated a significant reduction in fatal bleeds versus
warfarin with a 73% relative risk reduction (0.06%/year versus
0.24%/year, HR=0.27 [CI=0.13, 0.53]). Fatal bleed is an adjudicated
death because of bleeding during the treatment period and includes both
fatal extracranial bleeds and fatal hemorrhagic stroke. Eliquis
demonstrated a significant reduction in clinically relevant non major
bleeding (CRNM) versus warfarin (2.08%/year for ELIQUIS compared to
3.00%/year for warfarin [HR= 0.70, P<0.0001]). CRNM was defined as
clinically overt bleeding that did not satisfy the criteria for major
bleeding and that led to hospital admission, physician-guided medical or
surgical treatment, or a change in antithrombotic therapy.
In AVERROES, ELIQUIS was associated with an increase in major bleeding
compared to aspirin that was not statistically significant (1.41%/year
versus 0.92%/year, HR 1.54, (95% CI, 0.96 to 2.45); P = 0.07).
ELIQUIS was superior to warfarin in the key secondary endpoint of
all-cause mortality, with an 11% relative risk reduction (3.5%/year
versus 3.9%/year, HR=0.89, p= 0.046),primarily because of a
reduction in cardiovascular death, particularly stroke deaths.
Non-vascular death rates were similar in the treatment arms.
The most common and most serious adverse reactions observed in the
ARISTOTLE and AVERROES clinical trials with ELIQUIS were related to
bleeding. The most common reason for treatment discontinuation was for
bleeding-related adverse reactions; in ARISTOTLE, this occurred in 1.7%
and 2.5% of patients treated with ELIQUIS and warfarin, respectively.
Patients taking ELIQUIS should be carefully observed and counseled on
the symptoms and signs of bleeding.
The FDA has determined that a Risk Evaluation and Mitigation Strategy
(REMS) is necessary to ensure that the benefits of ELIQUIS outweigh the
potential risks in patients with nonvalvular atrial fibrillation. The
ELIQUIS REMS consists of a communication plan to inform healthcare
professionals about the increased risk of thrombotic events, including
stroke when discontinuing ELIQUIS without an adequate alternative
anticoagulant and the importance of following the recommendations in the
U.S. Prescribing Information on how to convert patients with nonvalvular
atrial fibrillation from ELIQUIS to warfarin or other anticoagulants.
ELIQUIS Dosage and Administration
The recommended dose of ELIQUIS for most patients is 5 mg taken orally
twice daily. In patients with any two of the following characteristics
(age ≥80 years, body weight ≤60 kg, or serum creatinine ≥1.5mg/dL), the
recommended dose of ELIQUIS is 2.5 mg twice daily. The dose of ELIQUIS
should be decreased to 2.5 mg twice daily when coadministered with drugs
that are strong dual inhibitors of CYP3A4 and P-gp, (e.g., ketoconazole,
itraconazole, ritonavir, or clarithromycin). In patients already taking
2.5 mg twice daily, avoid coadministration of ELIQUIS with strong dual
inhibitors of CYP3A4 and P-gp. ELIQUIS should be discontinued at least
48 hours prior to elective surgery or invasive procedures with a
moderate or high risk of unacceptable or clinically significant
bleeding. ELIQUIS should be discontinued at least 24 hours prior to
elective surgery or invasive procedures with a low risk of bleeding or
where the bleeding would be non-critical in location and easily
controlled. For more detailed information on the dosing of ELIQUIS,
please refer to Section 2 of the Full Prescribing Information.
IMPORTANT SAFETY INFORMATION for ELIQUIS®
(apixaban) 2.5 mg and 5 mg tablets
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WARNING: DISCONTINUING ELIQUIS IN PATIENTS WITHOUT ADEQUATE
CONTINUOUS ANTICOAGULATION INCREASES RISK OF STROKE.
|
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Discontinuing ELIQUIS places patients at an increased risk of
thrombotic events. An increased rate of stroke was observed
following discontinuation of ELIQUIS in clinical trials in
patients with nonvalvular atrial fibrillation. If anticoagulation
with ELIQUIS must be discontinued for a reason other than
pathological bleeding, coverage with another anticoagulant should
be strongly considered.
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CONTRAINDICATIONS
-
Active pathological bleeding
-
Severe hypersensitivity reaction to ELIQUIS (apixaban) (i.e.,
anaphylactic reactions)
WARNINGS AND PRECAUTIONS
-
Increased Risk of Stroke with Discontinuation of ELIQUIS: Discontinuing
ELIQUIS in the absence of adequate alternative anticoagulation
increases the risk of thrombotic events. An increased rate of stroke
was observed during the transition from ELIQUIS to warfarin in
clinical trials in patients with nonvalvular atrial fibrillation. If
ELIQUIS must be discontinued for a reason other than pathological
bleeding, consider coverage with another anticoagulant.
-
Bleeding Risk: ELIQUIS increases the risk of bleeding and can
cause serious, potentially fatal bleeding. Concomitant use of drugs
affecting hemostasis increases the risk of bleeding including aspirin
and other anti-platelet agents, other anticoagulants, heparin,
thrombolytic agents, SSRIs, SNRIs, and NSAIDs. Patients should be made
aware of signs or symptoms of blood loss and instructed to immediately
report to an emergency room. Discontinue ELIQUIS in patients with
active pathological hemorrhage.
-
There is no established way to reverse the anticoagulant effect of
apixaban, which can be expected to persist for about 24 hours after
the last dose (i.e., about two half-lives). A specific antidote for
ELIQUIS is not available. Because of high plasma protein binding,
apixaban is not expected to be dialyzable. Protamine sulfate and
vitamin K would not be expected to affect the anticoagulant activity
of apixaban. There is no experience with antifibrinolytic agents
(tranexamic acid, aminocaproic acid) in individuals receiving
apixaban. There is neither scientific rationale for reversal nor
experience with systemic hemostatics (desmopressin and aprotinin) in
individuals receiving apixaban. Use of procoagulant reversal agents
such as prothrombin complex concentrate, activated prothrombin complex
concentrate, or recombinant factor VIIa may be considered but has not
been evaluated in clinical studies. Activated charcoal reduces
absorption of apixaban thereby lowering apixaban plasma concentrations.
-
Prosthetic Heart Valves: The safety and efficacy of ELIQUIS has
not been studied in patients with prosthetic heart valves and is not
recommended in these patients.
ADVERSE REACTIONS
The most common and most serious adverse reactions reported with ELIQUIS
(apixaban) were related to bleeding.
DISCONTINUATIONS FOR SURGERY AND OTHER INTERVENTIONS
ELIQUIS should be discontinued at least 48 hours prior to elective
surgery or invasive procedures with a moderate or high risk of
unacceptable or clinically significant bleeding. ELIQUIS should be
discontinued at least 24 hours prior to elective surgery or invasive
procedures with a low risk of bleeding or where the bleeding would be
noncritical in location and easily controlled.
DRUG INTERACTIONS
-
Strong Dual Inhibitors of CYP3A4 and P-gp: Inhibitors of CYP3A4
and P-gp increase exposure to apixaban and increase the risk of
bleeding. Decrease the dose of ELIQUIS to 2.5 mg twice daily when
coadministered with drugs that are strong dual inhibitors of CYP3A4
and P-gp, (e.g., ketoconazole, itraconazole, ritonavir, or
clarithromycin). In patients already taking ELIQUIS at a dose of 2.5
mg daily, avoid coadministration with strong dual inhibitors of CYP3A4
and P-gp.
-
Strong Dual Inducers of CYP3A4 and P-gp: Inducers of CYP3A4 and
P-gp decrease exposure to apixaban and increase the risk of stroke.
Avoid concomitant use of ELIQUIS with strong dual inducers of CYP3A4
and P-gp (e.g., rifampin, carbamazepine, phenytoin, St. John’s wort)
because such drugs will decrease exposure to apixaban.
-
Anticoagulants and Antiplatelet Agents: Coadministration of
antiplatelet agents, fibrinolytics, heparin, aspirin, and chronic
NSAID use increases the risk of bleeding.
PREGNANCY CATEGORY B
There are no adequate and well-controlled studies of ELIQUIS in pregnant
women. Treatment is likely to increase the risk of hemorrhage during
pregnancy and delivery. ELIQUIS should be used during pregnancy only if
the potential benefit outweighs the potential risk to the mother and
fetus.
INDICATION
ELIQUIS is indicated to reduce the risk of stroke and systemic embolism
in patients with nonvalvular atrial fibrillation.
Please see full
Prescribing Information including BOXED WARNING and
Medication Guide available at www.bms.com.
About the Bristol-Myers Squibb/Pfizer Collaboration
In 2007, Pfizer and Bristol-Myers Squibb entered into a worldwide
collaboration to develop and commercialize ELIQUIS, an investigational
oral anticoagulant discovered by Bristol-Myers Squibb. This global
alliance combines Bristol-Myers Squibb's long-standing strengths in
cardiovascular drug development and commercialization with Pfizer’s
global scale and expertise in this field.
About Bristol-Myers Squibb
Bristol-Myers Squibb is a global biopharmaceutical company whose mission
is to discover, develop and deliver innovative medicines that help
patients prevail over serious diseases. For more information, please
visit http://www.bms.com
or follow us on Twitter at http://twitter.com/bmsnews.
Pfizer Inc.: Working together for a healthier world™
At Pfizer, we apply science and our global resources to improve health
and well-being at every stage of life. We strive to set the standard for
quality, safety and value in the discovery, development and
manufacturing of medicines for people and animals. Our diversified
global health care portfolio includes human and animal biologic and
small molecule medicines and vaccines; as well as many of the world’s
best-known consumer products. Every day, Pfizer colleagues work across
developed and emerging markets to advance wellness, prevention,
treatments and cures that challenge the most feared diseases of our
time. Consistent with our responsibility as the world’s leading
biopharmaceutical company, we also collaborate with health care
providers, governments and local communities to support and expand
access to reliable, affordable health care around the world. For more
than 150 years, Pfizer has worked to make a difference for all who rely
on us.
Bristol-Myers Squibb Forward-Looking Statement
This press release contains "forward-looking statements" as that term
is defined in the Private Securities Litigation Reform Act of 1995
regarding product development. Such forward-looking statements are based
on current expectations and involve inherent risks and uncertainties,
including factors that could delay, divert or change any of them, and
could cause actual outcomes and results to differ materially from
current expectations. No forward-looking statement can be guaranteed.
Among other risks, there can be no guarantee that ELIQUIS will become a
commercially successful product. Forward-looking statements in this
press release should be evaluated together with the many uncertainties
that affect Bristol-Myers Squibb's business, particularly those
identified in the cautionary factors discussion in Bristol-Myers
Squibb's Annual Report on Form 10-K for the year ended December 31,
2011, in our Quarterly Reports on Form 10-Q and our Current Reports on
Form 8-K. Bristol-Myers Squibb undertakes no obligation to publicly
update any forward-looking statement, whether as a result of new
information, future events or otherwise.
PFIZER DISCLOSURE NOTICE:
The information contained in this release is as of January 2, 2013.
Pfizer assumes no obligation to update forward-looking statements
contained in this release as the result of new information or future
events or developments.
This release contains forward-looking information about ELIQUIS
(apixaban) that involves substantial risks and uncertainties. Such risks
and uncertainties include, among other things, (i) the uncertainties
regarding the commercial success of ELIQUIS in the U.S. for the
reduction of the risk of stroke and systemic embolism in patients with
nonvalvular atrial fibrillation; (ii) the ability to meet the
anticipated timing for the availability of Eliquis in the U.S.; (iii)
decisions by regulatory authorities in jurisdictions in which
applications are pending or may be filed for ELIQUIS for the prevention
of stroke and systemic embolism in patients with nonvalvular atrial
fibrillation regarding whether and when to approve such applications, as
well as their decisions regarding labeling and other matters that could
affect the availability or commercial potential of that indication in
such jurisdictions; and (iv) competitive developments.
A further description of risks and uncertainties can be found in
Pfizer’s Annual Report on Form 10-K for the fiscal year ended December
31, 2011 and in its reports on Form 10-Q and Form 8-K.
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