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BeiGene Announces U.S. FDA Acceptance of Supplemental New Drug Application for BRUKINSA (zanubrutinib) in Chronic Lymphocytic Leukemia
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BeiGene announced the FDA's acceptance of its supplemental new drug application for BRUKINSA (zanubrutinib) to treat chronic lymphocytic leukemia (CLL) and small lymphocytic lymphoma (SLL). The PDUFA target action date is October 22, 2022. The filing includes data from two pivotal Phase 3 trials—ALPINE and SEQUOIA—demonstrating BRUKINSA's superior efficacy over ibrutinib and chemoimmunotherapy. This milestone could enhance treatment options for patients with CLL, addressing unmet medical needs.
Positive
FDA acceptance of BRUKINSA's supplemental application for CLL/SLL.
Demonstrated superiority in efficacy over ibrutinib and chemoimmunotherapy.
Potential to address unmet medical needs in CLL treatment.
Negative
None.
The filing is supported by two global Phase 3 trials of BRUKINSA in chronic lymphocytic leukemia covering both treatment-naïve and relapsed or refractory patient populations
The Prescription Drug User Fee Acttarget action date is October 22, 2022
CAMBRIDGE, Mass. and BEIJING--(BUSINESS WIRE)--
BeiGene (NASDAQ: BGNE; HKEX: 06160; SSE: 688235), a global, science-driven biotechnology company focused on developing innovative and affordable medicines to improve treatment outcomes and access for patients worldwide, today announced that the U.S. Food and Drug Administration (FDA) has accepted a supplemental new drug application (sNDA) for BRUKINSA® (zanubrutinib) for the treatment of adult patients with chronic lymphocytic leukemia (CLL) or small lymphocytic lymphoma (SLL). CLL is the most common form of adult leukemia. The Prescription Drug User Fee Act (PDUFA) target action date is October 22, 2022.
“We are pleased with the FDA’s acceptance of BRUKINSA’s filing in CLL. This is an important milestone in BRUKINSA’s global registration program. With superiority in investigator-assessed ORR over ibrutinib in ALPINE for relapsed or refractory patients and in PFS over chemoimmunotherapy in the SEQUOIA study for treatment-naïve patients, BRUKINSA has demonstrated its potential to improve treatment outcomes for CLL patients,” commented Jane Huang, M.D., Chief Medical Officer of Hematology at BeiGene. “We look forward to furthering our discussions with the FDA on this filing and the potential to bring this important treatment option to the CLL community in the U.S.”
The sNDA filing in CLL/SLL includes data from two pivotal randomized Phase 3 studies and eight supportive studies in B cell malignancies. The two global Phase 3 trials of BRUKINSA in CLL/SLL are: ALPINE (NCT03734016) comparing BRUKINSA to ibrutinib in relapsed or refractory (R/R) patients and SEQUOIA (NCT03336333) comparing BRUKINSA to bendamustine and rituximab in treatment-naïve (TN) patients. Additionally, the SEQUOIA study enrolled patients with deletion 17p in a non-randomized arm evaluating BRUKINSA monotherapy in this high risk population. ALPINE and SEQUOIA enrolled patients from a total of 17 countries, including the United States, China, Australia, New Zealand and multiple countries in Europe. Results from the ALPINE trial and the SEQUOIA trial were reported at the 26thEuropean Hematology Association (EHA2021) Virtual Congress in June 2021 and at the 63rdAmerican Society for Hematology (ASH) Annual Meeting in December 2021, respectively.
“While previously approved BTK inhibitors have been transformational for some patients with CLL, there continues to be unmet need as not all patients achieve a favorable clinical response while others are unable to tolerate currently approved BTKi therapies,” said Jennifer R. Brown, MD, PhD, Director of the CLL Center of the Division of Hematologic Malignancies at Dana-Farber Cancer Institute, and a principal investigator in the two studies. “As demonstrated in both the ALPINE AND SEQUOIA studies, BRUKINSA was generally well-tolerated in CLL patients with low rates of atrial fibrillation and showed strong efficacy compared to ibrutinib and chemoimmunotherapy, respectively.”
About Chronic Lymphocytic Leukemia
Chronic lymphocytic leukemia (CLL) is the most common form of leukemia in adults. CLL accounts for about one quarter of new cases of leukemia, and in 2021 there were more than 21,000 new cases diagnosed in the U.S.1 In 2018, there were an estimated 195,129 people living with chronic lymphocytic leukemia in the United States.1 CLL begins in cells that become certain white blood cells (lymphocytes) in the bone marrow but then go into the blood. Proliferation of cancer cells (leukemia) in the marrow result in reduced ability to fight infection and spread into the blood, which affects other parts of the body including the lymph nodes, liver and spleen.2,3,4 The BTK pathway is a known route that signals malignant B cells and contributes to the onset of CLL.5 Small lymphocytic lymphoma (SLL) is a non-Hodgkin’s lymphoma affecting the B-lymphocytes of the immune system, which shares many similarities to CLL but with cancer cells found mostly in lymph nodes.6
About BRUKINSA
BRUKINSA is a small molecule inhibitor of Bruton’s tyrosine kinase (BTK) discovered by BeiGene scientists that is currently being evaluated globally in a broad clinical program as a monotherapy and in combination with other therapies to treat various B-cell malignancies. Because new BTK is continuously synthesized, BRUKINSA was specifically designed to deliver complete and sustained inhibition of the BTK protein by optimizing bioavailability, half-life, and selectivity. With differentiated pharmacokinetics compared to other approved BTK inhibitors, BRUKINSA has been demonstrated to inhibit the proliferation of malignant B cells within a number of disease relevant tissues.
BRUKINSA has previously been approved for three indications in the United States: for the treatment of mantle cell lymphoma (MCL) in adult patients who have received at least one prior therapy (Nov. 2019)*; for the treatment of adult patients with Waldenström’s macroglobulinemia (WM) (Aug. 2021); and for the treatment of adult patients with relapsed or refractory marginal zone lymphoma (MZL) who have received at least one anti-CD20-based regimen (Sept. 2021)*.
BRUKINSA is supported by a broad clinical program which includes more than 3,900 subjects in 35 trials across 28 markets. To date, BRUKINSA has received more than 20 approvals covering more than 40 countries and regions, including the United States, China, the EU and Great Britain, Canada, Australia and additional international markets. Currently, more than 40 additional regulatory submissions are in review around the world.
* This indication was approved under accelerated approval based on overall response rate. Continued approval for this indication may be contingent upon verification and description of clinical benefit in a confirmatory trial.
IMPORTANT U.S. SAFETY INFORMATION FOR BRUKINSA (ZANUBRUTINIB)
Warnings and Precautions
Hemorrhage
Fatal and serious hemorrhagic events have occurred in patients with hematological malignancies treated with BRUKINSA monotherapy. Grade 3 or higher hemorrhage including intracranial and gastrointestinal hemorrhage, hematuria and hemothorax have been reported in 3.4% of patients treated with BRUKINSA monotherapy. Hemorrhage events of any grade occurred in 35% of patients treated with BRUKINSA monotherapy.
Bleeding events have occurred in patients with and without concomitant antiplatelet or anticoagulation therapy. Co-administration of BRUKINSA with antiplatelet or anticoagulant medications may further increase the risk of hemorrhage.
Monitor for signs and symptoms of bleeding. Discontinue BRUKINSA if intracranial hemorrhage of any grade occurs. Consider the benefit-risk of withholding BRUKINSA for 3-7 days pre- and post-surgery depending upon the type of surgery and the risk of bleeding.
Infections
Fatal and serious infections (including bacterial, viral, or fungal) and opportunistic infections have occurred in patients with hematological malignancies treated with BRUKINSA monotherapy. Grade 3 or higher infections occurred in 27% of patients, most commonly pneumonia. Infections due to hepatitis B virus (HBV) reactivation have occurred.
Consider prophylaxis for herpes simplex virus, pneumocystis jiroveci pneumonia and other infections according to standard of care in patients who are at increased risk for infections. Monitor and evaluate patients for fever or other signs and symptoms of infection and treat appropriately.
Cytopenias
Grade 3 or 4 cytopenias, including neutropenia (26%), thrombocytopenia (11%) and anemia (8%) based on laboratory measurements, developed in patients treated with BRUKINSA monotherapy. Grade 4 neutropenia occurred in 13% of patients, and Grade 4 thrombocytopenia occurred in 3.6% of patients.
Monitor complete blood counts regularly during treatment and interrupt treatment, reduce the dose, or discontinue treatment as warranted. Treat using growth factor or transfusions, as needed.
Second Primary Malignancies
Second primary malignancies, including non-skin carcinoma, have occurred in 14% of patients treated with BRUKINSA monotherapy. The most frequent second primary malignancy was non-melanoma skin cancer, reported in 8% of patients. Other second primary malignancies included malignant solid tumors (4.0%), melanoma (1.7%) and hematologic malignancies (1.2%). Advise patients to use sun protection and monitor patients for the development of second primary malignancies.
Cardiac Arrhythmias
Atrial fibrillation and atrial flutter were reported in 3.2% of patients treated with BRUKINSA monotherapy. Patients with cardiac risk factors, hypertension, and acute infections may be at increased risk. Grade 3 or higher events were reported in 1.1% of patients treated with BRUKINSA monotherapy. Monitor signs and symptoms for atrial fibrillation and atrial flutter and manage as appropriate.
Embryo-Fetal Toxicity
Based on findings in animals, BRUKINSA can cause fetal harm when administered to a pregnant woman. Administration of zanubrutinib to pregnant rats during the period of organogenesis caused embryo-fetal toxicity including malformations at exposures that were 5 times higher than those reported in patients at the recommended dose of 160 mg twice daily. Advise women to avoid becoming pregnant while taking BRUKINSA and for 1 week after the last dose. Advise men to avoid fathering a child during treatment and for 1 week after the last dose.
If this drug is used during pregnancy, or if the patient becomes pregnant while taking this drug, the patient should be apprised of the potential hazard to a fetus.
Adverse reactions
The most common adverse reactions, including laboratory abnormalities, in ≥ 30% of patients who received BRUKINSA (N = 847) included decreased neutrophil count (54%), upper respiratory tract infection (47%), decreased platelet count (41%), hemorrhage (35%), decreased lymphocyte count (31%), rash (31%) and musculoskeletal pain (30%).
Drug Interactions
CYP3A Inhibitors: When BRUKINSA is co-administered with a strong CYP3A inhibitor, reduce BRUKINSA dose to 80 mg once daily. For coadministration with a moderate CYP3A inhibitor, reduce BRUKINSA dose to 80 mg twice daily.
CYP3A Inducers: Avoid coadministration with moderate or strong CYP3A inducers.
Specific Populations
Hepatic Impairment: The recommended dose of BRUKINSA for patients with severe hepatic impairment is 80 mg orally twice daily.
BeiGene is committed to advancing best- and first-in-class clinical candidates internally or with like-minded partners to develop impactful and affordable medicines for patients across the globe. We have a growing R&D and medical affairs team of approximately 2,900 colleagues dedicated to advancing more than 100 clinical trials that have involved more than 14,500 subjects. Our expansive portfolio is directed predominantly by our internal colleagues supporting clinical trials in more than 45 countries and regions. Hematology-oncology and solid tumor targeted therapies and immuno-oncology are key focus areas for the Company, with both mono- and combination therapies prioritized in our research and development. BeiGene currently has three approved medicines discovered and developed in our own labs: BTK inhibitor BRUKINSA in the United States, China, the EU and U.K., Canada, Australia and additional international markets; and the non-FC-gamma receptor binding anti-PD-1 antibody tislelizumab as well as the PARP inhibitor pamiparib in China.
BeiGene also partners with innovative companies who share our goal of developing therapies to address global health needs. We commercialize a range of oncology medicines in China licensed from Amgen, Bristol Myers Squibb, EUSA Pharma and Bio-Thera. We also plan to address greater areas of unmet need globally through our other collaborations including with Mirati Therapeutics, Seagen, and Zymeworks.
In January 2021BeiGene and Novartis announced a collaboration granting Novartis rights to co-develop, manufacture, and commercialize BeiGene’s anti-PD1 antibody tislelizumab in North America, Europe, and Japan. Building upon this productive collaboration, including a biologics license application (BLA) under FDA review, BeiGene and Novartis announced an option, collaboration and license agreement in December 2021 for BeiGene’s TIGIT inhibitor ociperlimab that is in Phase 3 development. Novartis and BeiGene also entered into a strategic commercial agreement through which BeiGene will promote five approved Novartis Oncology products across designated regions of China.
About BeiGene
BeiGene is a global, science-driven biotechnology company focused on developing innovative and affordable medicines to improve treatment outcomes and access for patients worldwide. With a broad portfolio of more than 40 clinical candidates, we are expediting development of our diverse pipeline of novel therapeutics through our own capabilities and collaborations. We are committed to radically improving access to medicines for two billion more people by 2030. BeiGene has a growing global team of over 8,000 colleagues across five continents. To learn more about BeiGene, please visit www.beigene.com and follow us on Twitter at @BeiGeneGlobal.
Forward-Looking Statements
This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 and other federal securities laws, including statements regarding future development, regulatory filings and potential commercialization of BRUKINSA in the United States and other markets, the potential for BRUKINSA to provide improved clinical benefits with advantages in safety, the potential commercial opportunity for BRUKINSA, and BeiGene’s plans, commitments, aspirations and goals under the headings “BeiGene Oncology” and “About BeiGene.” Actual results may differ materially from those indicated in the forward-looking statements as a result of various important factors, including BeiGene's ability to demonstrate the efficacy and safety of its drug candidates; the clinical results for its drug candidates, which may not support further development or marketing approval; actions of regulatory agencies, which may affect the initiation, timing and progress of clinical trials and marketing approval; BeiGene's ability to achieve commercial success for its marketed medicines and drug candidates, if approved; BeiGene's ability to obtain and maintain protection of intellectual property for its medicines and technology; BeiGene's reliance on third parties to conduct drug development, manufacturing and other services; BeiGene’s limited experience in obtaining regulatory approvals and commercializing pharmaceutical products and its ability to obtain additional funding for operations and to complete the development and commercialization of its drug candidates and achieve and maintain profitability; the impact of the COVID-19 pandemic on the BeiGene’s clinical development, regulatory, commercial, manufacturing, and other operations, as well as those risks more fully discussed in the section entitled “Risk Factors” in BeiGene’s most recent quarterly report on Form 10-Q as well as discussions of potential risks, uncertainties, and other important factors in BeiGene's subsequent filings with the U.S. Securities and Exchange Commission. All information in this press release is as of the date of this press release, and BeiGene undertakes no duty to update such information unless required by law.
3 Global Burden of Disease Cancer Collaboration. Global, Regional, and National Cancer Incidence, Mortality, Years of Life Lost, Years Lived With Disability, and Disability-Adjusted Life-Years for 29 Cancer Groups, 1990 to 2017. JAMA Oncol. 2019;5(12):1749-1768.
What is the significance of the FDA acceptance of BeiGene's BRUKINSA filing?
The FDA's acceptance signifies a critical step towards potential approval for BRUKINSA to treat chronic lymphocytic leukemia, aiming to enhance treatment options for patients.
When is the target action date set by the FDA for BRUKINSA?
The target action date set by the FDA for BRUKINSA is October 22, 2022.
What trials supported the BRUKINSA filing for chronic lymphocytic leukemia?
The filing is supported by key Phase 3 trials known as ALPINE and SEQUOIA.
How does BRUKINSA compare to existing treatments in clinical trials?
BRUKINSA has shown superiority over ibrutinib in the ALPINE trial and over chemoimmunotherapy in the SEQUOIA trial.
What are the potential benefits of BRUKINSA for chronic lymphocytic leukemia patients?
BRUKINSA offers potential improved outcomes for patients, addressing limitations of existing BTK inhibitors.
