U.S. Food and Drug Administration Approves?Onureg (azacitidine ), a New?Oral Therapy, as Continued Treatment for Adults in First Remission with?Acute Myeloid Leukemia
In the QUAZAR??AML-001 study, Onureg significantly improved overall survival by nearly 10 months compared to placebo (24.7 months [95% CI: 18.7?to?30.5] vs. 14.8 months [95% CI: 11.7 to 17.6]) in patients with acute myeloid leukemia in first remission
September 01, 2020 12:50 PM Eastern Daylight Time
PRINCETON, N.J.--(BUSINESS WIRE)--Bristol Myers Squibb?(NYSE: BMY) today announced that the U.S. Food and Drug Administration (FDA) has approved?Onureg??(azacitidine 300 mg tablets, CC-486) for the continued treatment of adult patients with acute myeloid leukemia (AML) who achieved first complete remission (CR) or CR with incomplete blood count recovery (CRi) following intensive induction chemotherapy and who are not able to complete intensive curative therapy.1?AML is one of the most common acute leukemias in adults.
The approval is based on results from the pivotal Phase 3 QUAZAR??AML-001 study in which treatment with?Onureg?resulted in a statistically significant and clinically meaningful improvement in overall survival (OS), the study?s primary endpoint, of nearly 10 months compared to placebo. Median OS from time of randomization was greater than two years (24.7 months; 95% Confidence Interval [CI]: 18.7 to 30.5) among patients who received?Onureg?compared to 14.8 months (95% CI: 11.7 to 17.6) among patients receiving placebo (Hazard Ratio [HR]: 0.69, 95% CI: 0.55 to 0.86; p=0.0009).?Onureg?was continued until disease progression or unacceptable toxicity.?Onureg?has warnings and precautions for risks of substitution with other azacitidine products, myelosuppression, increased early mortality in patients with myelodysplastic syndromes (MDS) and embryo-fetal toxicity. Due to substantial differences in the pharmacokinetic parameters,?Onureg?should not be substituted for intravenous or subcutaneous azacitidine as it may result in a fatal adverse reaction. New or worsening Grade 3 or 4 neutropenia and thrombocytopenia occurred in 49% and 22% of patients who received?Onureg,?respectively. Febrile neutropenia occurred in 12% of patients. Complete blood counts should be monitored, dosing should be modified as recommended and standard supportive care should be provided if myelosuppression occurs. Enrollment was discontinued early in the study AZA-MDS-003 due to a higher incidence of early fatal and/or serious adverse reactions in the?Onureg?arm compared with the placebo arm. Treatment of MDS with?Onureg?is not recommended outside of controlled trials.?Onureg?can cause fetal harm when administered to a pregnant woman. ?Continued treatment with?Onureg?demonstrated an overall survival benefit in adults with AML who had achieved first complete remission in the QUAZAR??AML-001 study and, notably, it has the potential to do this in a convenient manner, given its once daily oral formulation,?1?said Andrew Wei, MBBS, Ph.D., QUAZAR??AML-001 lead investigator, Alfred Hospital and Monash University, Melbourne, Australia. ?This approval should help establish continued treatment with?Onureg?as a standard component of AML therapy for adults who achieved first complete remission following chemotherapy and who cannot proceed to intensive curative therapy, like hematopoietic stem cell transplant.? ?The FDA approval of?Onureg?is the culmination of over a decade of research and 13 pre-clinical and clinical trials. We are grateful to the patients, families and caregivers who participated in and supported these trials, and who ultimately made today?s advancement possible,? said?Giovanni Caforio, M.D.,?chairman and chief executive officer, Bristol Myers Squibb. ?This milestone is representative of our commitment to helping patients with hard-to-treat cancers live longer, and the approval of?Onureg?as an oral therapy option for patients is more relevant now than ever as the world continues to navigate the COVID-19 pandemic.? The New Drug Application was granted Priority Review Designation by the FDA, and a Marketing Authorization Application (MAA) for this indication was validated by the European Medicines Agency in May 2020. QUAZAR??AML-001 Pivotal Trial Results The FDA approval of?Onureg?is based on data from QUAZAR??AML-001, a Phase 3, international, randomized, double-blind study.1?Eligible patients were ages 55 years or older, had AML, were within four months of achieving first CR or CRi following intensive induction chemotherapy with or without consolidation treatment (per investigator preference prior to study entry), and were not candidates for hematopoietic stem cell transplant (HSCT) at the time of screening. The study enrolled 472 patients, randomized 1:1 to receive either?Onureg?300 mg (n=238) or placebo (n=234) orally, once daily, for 14 days of a 28-day cycle, plus best supportive care. Results showed continued treatment with?Onureg?significantly improved OS in patients with AML in remission compared to placebo, establishing?Onureg?as a new continued therapy option for patients who are not able to complete intensive curative therapy, including HSCT. Median OS, the primary endpoint, from time of randomization was greater than two years (24.7 months; 95% CI: 18.7 to 30.5) in the?Onureg?arm compared to 14.8 months for placebo (HR: 0.69, 95% CI: 0.55 to 0.86; p=0.0009). A subgroup analysis showed consistency in the OS benefit for patients in either CR or CRi. The median duration of treatment was 12 cycles (1 to 82) for?Onureg1?and 6 cycles with placebo (1 to 76).2 Serious adverse reactions occurred in 15% of patients who received?Onureg. Serious adverse reactions in =2% of patients who received?Onureg?included pneumonia (8%) and febrile neutropenia (7%). One fatal adverse reaction (sepsis) occurred in a patient who received?Onureg. The most common adverse reactions with?Onureg?versus placebo were nausea (65%, 24%), vomiting (60%, 10%), diarrhea (50%, 21%), fatigue/asthenia (44%, 25%), constipation (39%, 24%), pneumonia (27%, 17%), abdominal pain (22%, 13%) arthralgia (14%, 10%), decreased appetite (13%, 6%), febrile neutropenia (12%, 8%), dizziness (11%, 9%) and pain in extremity (11%, 5%). Of patients who received?Onureg, permanent discontinuation due to an adverse reaction occurred in 8% of patients. Results from the QUAZAR??AML-001 trial were first presented at the American Society of Hematology (ASH) Annual Meeting in December 2019. About AML There will be nearly 20,000 new cases of acute myeloid leukemia (AML) in the United States this year, accounting for 1.1% of all cancer cases, with an estimated 11,180 deaths resulting from the disease. There were an estimated 64,500 people living with AML in the United States in 2017.3?AML is one of the most common acute leukemias in adults. AML is characterized by the rapid growth of abnormal cells in the bone marrow and as such interferes with normal blood cell production and function. Because of the impaired production of red blood cells, platelets and white blood cells, it can present with signs of anemia, bleeding and infections.4?AML is a heterogeneous disease associated with diverse genetic mutations, and can rapidly progress and lead to death if not promptly treated.5?AML response to treatment may be of short duration, meaning following patients' initial response to chemotherapy, there is still a very high risk of relapse, thus representing a significant unmet need for continued therapy options that prolong overall survival.6 About?Onureg? Onureg, the first and only FDA-approved continued AML therapy for patients in remission, is an oral hypomethylating agent that incorporates into DNA and RNA. The main mechanism of action is thought to be hypomethylation of DNA, as well as direct cytotoxicity to abnormal hematopoietic cells in the bone marrow. Hypomethylation may restore normal function to genes that are critical for cell differentiation and proliferation.7,8 INDICATION$BMY announces #FDA approval of a new therapy for people with acute myeloid #leukemia
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- ONUREG is indicated for continued treatment of adult patients with acute myeloid leukemia who achieved first complete remission (CR) or complete remission with incomplete blood count recovery (CRi) following intensive induction chemotherapy and are not able to complete intensive curative therapy.
- ONUREG is contraindicated in patients with known severe hypersensitivity to azacitidine or its components.
- Risks of Substitution with Other Azacitidine Products:?Due to substantial differences in the pharmacokinetic parameters, the recommended dose and schedule for ONUREG are different from those for the intravenous or subcutaneous azacitidine products. Treatment of patients using intravenous or subcutaneous azacitidine at the recommended dosage of ONUREG may result in a fatal adverse reaction. Treatment with ONUREG at the doses recommended for intravenous or subcutaneous azacitidine may not be effective. Do not substitute ONUREG for intravenous or subcutaneous azacitidine.
- Myelosuppression:?New or worsening Grade 3 or 4 neutropenia and thrombocytopenia occurred in 49% and 22% of patients who received ONUREG. Febrile neutropenia occurred in 12%. A dose reduction was required for 7% and 2% of patients due to neutropenia and thrombocytopenia. Less than 1% of patients discontinued ONUREG due to either neutropenia or thrombocytopenia. Monitor complete blood counts and modify the dosage as recommended. Provide standard supportive care, including hematopoietic growth factors, if myelosuppression occurs.
- Increased Early Mortality in Patients with Myelodysplastic Syndromes (MDS):?In AZA-MDS-003, 216 patients with red blood cell transfusion-dependent anemia and thrombocytopenia due to MDS were randomized to ONUREG or placebo. 107 received a median of 5 cycles of ONUREG 300 mg daily for 21 days of a 28-day cycle. Enrollment was discontinued early due to a higher incidence of early fatal and/or serious adverse reactions in the ONUREG arm compared with placebo. The most frequent fatal adverse reaction was sepsis. Safety and effectiveness of ONUREG for MDS have not been established. Treatment of MDS with ONUREG is not recommended outside of controlled trials.
- Embryo-Fetal Toxicity:?ONUREG can cause fetal harm when administered to a pregnant woman. Azacitidine caused fetal death and anomalies in pregnant rats via a single intraperitoneal dose less than the recommended human daily dose of oral azacitidine on a mg/m2 basis. Advise pregnant women of the potential risk to a fetus. Advise females of reproductive potential to use effective contraception during treatment with ONUREG and for at least 6 months after the last dose. Advise males with female partners of reproductive potential to use effective contraception during treatment with ONUREG and for at least 3 months after the last dose.
- Serious adverse reactions occurred in 15% of patients who received ONUREG. Serious adverse reactions in =2% included pneumonia (8%) and febrile neutropenia (7%). One fatal adverse reaction (sepsis) occurred in a patient who received ONUREG.
- Most common (=10%) adverse reactions with ONUREG vs placebo were nausea (65%, 24%), vomiting (60%, 10%), diarrhea (50%, 21%), fatigue/asthenia (44%, 25%), constipation (39%, 24%), pneumonia (27%, 17%), abdominal pain (22%, 13%), arthralgia (14%, 10%), decreased appetite (13%, 6%), febrile neutropenia (12%, 8%), dizziness (11%, 9%), pain in extremity (11%, 5%).
- There are no data regarding the presence of azacitidine in human milk or the effects on the breastfed child or milk production. Because of the potential for serious adverse reactions in the breastfed child, advise women not to breastfeed during treatment with ONUREG and for 1 week after the last dose
- Onureg Prescribing Information. Onureg U.S. Product Information. Last updated: August 2020. Princeton, NJ: Bristol-Myers Squibb Company
- Data on File. Princeton, NJ: Bristol-Myers Squibb Company. 2020.
- SEER. Cancer Stat Facts: Leukemia ? Acute Myeloid Leukemia (AML).?https://seer.cancer.gov/statfacts/html/amyl.html. Accessed on: July 23, 2020.
- American Cancer Society. What is AML?.?https://www.cancer.org/cancer/acute-myeloid-leukemia/about/what-is-aml.html. Accessed on: July 23, 2020.
- Int J Hematol Oncol Stem Cell Res. Acute Myeloid Leukemia?Genetic Alterations and Their Clinical Prognosis.?https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5767295/.
- Leukaemia Care. Relapse in Acute Myeloid Leukaemia (AML).?https://media.leukaemiacare.org.uk/wp-content/uploads/Relapse-in-Acute-Myeloid-Leukaemia-AML-Web-Version.pdf. Accessed on July 23, 2020.
- Laille et al.?PLoS One. 2015;10(8):e0135520
- Garcia-Manero et al.?J Clin Oncol.?2011;29(18):2521?7