Eliquis® (apixaban) Demonstrated Comparable Efficacy and Significantly Lower Rates of Major Bleeding in Patients Compared to Current Standard of Care for the Treatment of Acute Venous Thromboembolism
Phase 3 AMPLIFY Results Published in New England Journal of Medicine and Presented as a Late-Breaker at the Congress of the International Society on Thrombosis and Haemostasis Show:
-- Eliquis Was Noninferior to Current Standard of Care for Treatment of Both Symptomatic Deep Vein Thrombosis and Pulmonary Embolism Conditions
-- 69 Percent Relative Risk Reduction for Major Bleeding in Patients on Eliquis Compared to Current Standard of Care
PRINCETON, N.J. and NEW YORK--(BUSINESS WIRE)--Bristol-Myers Squibb Company (NYSE: BMY) and Pfizer Inc. (NYSE: PFE) today announced the results of the six month Phase 3 AMPLIFY trial of 5,395 patients with acute venous thromboembolism (VTE), which includes symptomatic deep vein thrombosis (DVT) and/or pulmonary embolism (PE). In this trial, Eliquis as a single-agent achieved the primary efficacy endpoint of noninferiority to current standard of care (initial parenteral enoxaparin treatment overlapped with warfarin therapy) in the reduction of the composite endpoint of recurrent symptomatic VTE or VTE-related death.
Eliquis also met the primary safety endpoint of superiority for major bleeding, with a 69 percent relative risk reduction (RRR) compared to current standard of care.
Importantly, AMPLIFY demonstrated comparable results for the primary efficacy and safety endpoints between patients entering the study with a DVT or a PE.
The findings were published online in New England Journal of Medicine and announced at the 24th Congress of the International Society on Thrombosis and Haemostasis (ISTH).
Venous thromboembolism, or VTE, encompasses two serious conditions: deep vein thrombosis (DVT), a blood clot in a vein, usually in the leg, that partially or totally blocks the flow of blood; and pulmonary embolism (PE), a blood clot blocking one or more vessels in the lungs. VTE continues to be a major cause of morbidity and mortality, with approximately 900,000 patients in the U.S. and approximately 1 million patients in the EU diagnosed every year. Once a VTE has occurred, up to 10 percent of people may have a VTE reoccurrence, which could potentially be fatal.
"The study results showed that apixaban, as a single-agent, has comparable efficacy with significantly fewer major bleeding events with respect to the standard of care. These results complement the previously published results for the AMPLIFY-EXT study," said Dr. Giancarlo Agnelli, professor of internal medicine, University of Perugia, Italy; director of the Department of Internal and Cardiovascular Medicine and Stroke-Unit, University Hospital, Perugia, Italy; and lead investigator of the study. "Together these studies represent exciting data in the field of VTE treatment and indicate that apixaban may offer an important potential alternative in both acute and extended anticoagulation therapy for VTE patients."
Based on the results of AMPLIFY, as well as AMPLIFY-EXT, which were published online on December 8, 2012, in New England Journal of Medicine with simultaneous presentation during a late-breaker session at the 54th Annual Meeting of the American Society of Hematology (ASH), Bristol-Myers Squibb and Pfizer plan to initiate regulatory filings for the initial and long-term treatment of VTE, as well as for extended prevention of recurrent VTE.
AMPLIFY, (Apixaban for the initial Management of PuLmonary embolIsm and deep vein thrombosis as First-line therapY), a randomized, double-blind, multicenter trial, included 5,395 patients with confirmed symptomatic DVT or PE requiring treatment for six months, and evaluated Eliquis as a single-agent (10 mg twice daily for 7 days followed by 5 mg twice daily thereafter) compared to current standard of care (initial parenteral enoxaparin treatment overlapped by warfarin therapy). Approximately one third of patients in the trial had a PE at the time of enrollment into the study.
The primary efficacy outcome was the composite endpoint of recurrent symptomatic VTE (nonfatal DVT or nonfatal PE) or VTE-related death. For the primary efficacy outcome, Eliquis achieved noninferiority to parenteral enoxaparin plus warfarin in the reduction of recurrent symptomatic VTE or VTE-related death. The primary efficacy outcome occurred in 59 patients in the Eliquis group (2.3%) and 71 patients (2.7%) receiving current standard of care (relative risk 0.84%; 95% CI, 0.60 to 1.18; P<0.0001 for noninferiority).
Eliquis achieved the primary safety endpoint of superiority for major bleeding. Major bleeding occurred in 0.6% of patients given Eliquis and 1.8% of those given current standard of care (relative risk, 0.31; 95% CI, 0.17 to 0.55; P<0.0001 for superiority). The composite of major and clinically relevant nonmajor bleeding occurred in 4.3% and 9.7% of patients in the Eliquis and current standard of care groups, respectively (relative risk, 0.44; 95% CI, 0.36 to 0.55). Rates of other adverse events were similar in the two groups.
AMPLIFY demonstrated a comparable efficacy and safety profile between patients entering the study with a DVT and/or a PE. In patients enrolled with DVT, the primary efficacy outcome occurred in 38 patients (2.2%) in the apixaban group and 47 patients (2.7%) in the current standard of care group (relative risk, 0.83; 95% CI, 0.54 to 1.26; risk difference [apixaban minus current standard of care] -0.5%; 95% CI, -1.5 to 0.6). In patients enrolled with PE, the primary efficacy outcome occurred in 21 patients (2.3%) in the apixaban group and 23 patients (2.6%) in the current standard of care group (relative risk 0.90; 95% CI, 0.50 to 1.61; risk difference -0.3%; 95% CI, -1.7 to 1.2).
Eliquis® (apixaban) is an oral direct Factor Xa inhibitor. By inhibiting Factor Xa, a key blood clotting protein, Eliquis prevents thrombin generation and blood clot formation. Eliquis is approved to reduce the risk of stroke and systemic embolism in patients with nonvalvular atrial fibrillation in the United States, European Union (which includes 27 member states plus Iceland and Norway), Japan and a number of other countries around the world. Eliquis is approved for prevention of venous thromboembolic events (VTE) in adult patients who have undergone elective hip or knee replacement surgery in the European Union (which includes 27 member states plus Iceland and Norway) and a number of other countries around the world. Eliquis is not approved for this indication in the U.S.
IMPORTANT SAFETY INFORMATION FOR ELIQUIS
BOXED WARNING: DISCONTINUING ELIQUIS IN PATIENTS WITHOUT ADEQUATE CONTINUOUS ANTICOAGULATION INCREASES RISK OF STROKE.
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.
- 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.
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.
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 twice 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. APPRAISE-2, a placebo-controlled clinical trial of apixaban in high-risk post-acute coronary syndrome patients treated with aspirin or the combination of aspirin and clopidogrel, was terminated early due to a higher rate of bleeding with apixaban compared to placebo.
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.
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 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 athttp://twitter.com/bmsnews.
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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 be approved in the EU for the treatment of VTE or in the U.S. or other markets for the prevention and treatment of VTE. There is also 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, 2012, 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 June 30, 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), including its potential benefits and the anticipated submission of applications with regulatory authorities for the initial and long-term treatment of VTE and for the extended prevention of recurrent VTE (the "Additional Indications"), that involves substantial risks and uncertainties. Such risks and uncertainties include, among other things, (i) the uncertainties inherent in research and development; (ii) whether and when any applications will be submitted with regulatory authorities for the Additional Indications; (iii) whether and when any such applications, if submitted, may be approved by regulatory authorities as well as their decisions regarding labeling and other matters that could affect the availability or commercial potential of the Additional Indications; 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, 2012 and in its reports on Form 10-Q and Form 8-K.