Bristol Myers Squibb (NYSE: BMY) 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. 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.
https://en.wikipedia.org/wiki/Azacitidine
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