Image by Lance Liotta
The European Medicines Agency’s Committee for Medicinal Products for Human Use (CHMP) has recommended expanding the marketing authorization for azacitidine for injection (Vidaza).
The CHMP is recommending that azacitidine be approved to treat adults age 65 and older with acute myeloid leukemia (AML) who are not eligible for hematopoietic stem cell transplant (HSCT) and have more than 30% blasts according to the WHO classification.
The CHMP’s recommendation will be reviewed by the European Commission (EC). The EC usually follows the CHMP’s recommendations and is expected to deliver its final decision in 2 months.
The CHMP said this new indication for azacitidine would bring significant clinical benefit in comparison with existing therapies. If the EC follows the CHMP’s recommendation, azacitidine will receive extended market protection in all its indications for an additional year throughout the European Economic Area.
Azacitidine is already approved in the European Economic Area for the treatment of HSCT-ineligible adults diagnosed with intermediate-2- and high-risk myelodysplastic syndromes; chronic myelomonocytic leukemia with 10%-29% marrow blasts without myeloproliferative disorder; or AML with 20%-30% blasts and multi-lineage dysplasia.
AML-001 trial
The CHMP’s recommendation to expand the indication of azacitidine in AML was based on data from the AML-001 trial. This randomized study included patients age 65 and older with newly diagnosed or secondary AML with greater than 30% blasts.
Patients were pre-selected to receive 1 of 3 regimens per investigator’s choice. This included intensive chemotherapy (standard 7+3 regimen), low-dose cytarabine (20 mg subcutaneously twice a day for 10 days of each 28-day cycle) or best supportive care only.
Patients were then randomized to receive either azacitidine (75 mg/m2/day subcutaneously for 7 days of each 28-day cycle, n=241) or their predetermined conventional care regimen (CCR, n=247).
Median overall survival, the study’s primary endpoint, was 10.4 months for patients receiving azacitidine and 6.5 months for patients receiving CCR (hazard ratio=0.85, P=0.1009).
One-year survival rates with azacitidine and CCR were 46.5% and 34.2%, respectively.
Grade 3/4 anemia occurred in 16% of patients who received azacitidine, 5% who received best supportive care, 23% who received low-dose cytarabine, and 14% who received intensive chemotherapy.
Grade 3/4 neutropenia occurred in 26%, 5%, 25%, and 33%, respectively. Grade 3/4 febrile neutropenia occurred in 28%, 28%, 30%, and 31%, respectively. And grade 3/4 thrombocytopenia occurred in 24%, 5%, 28%, and 21%, respectively.
