Étude de phase 3 comparant le girétinib à une chimiothérapie de rattrapage chez des patients asiatiques atteints de leucémie myéloïde aiguë récidivante ou réfractaire porteuse de la mutation FLT3 — Magazine Nature

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The phase 3 COMMODORE trial evaluated gilteritinib versus salvage chemotherapy (SC) in a predominantly Asian relapsed/refractory (R/R) FLT3-mutated (FLT3mut+) acute myeloid leukemia (AML) patient population. The primary endpoint was overall survival (OS); secondary endpoints included event-free survival (EFS) and complete remission (CR) rate. As of June 30,2020 (interim analysis: 32.2 months after study initiation), 234 patients were randomized (gilteritinib, n = 116;

SC, n = 118). Median OS was significantly longer with gilteritinib versus SC (9.6 vs. 5.0 months; HR 0.566; p = 0.00211) with a median follow-up of 10.3 months. Median EFS was also significantly longer with gilteritinib (2.8 vs. 0.6 months; HR 0.551; p = 0.00004). CR rates with gilteritinib and SC were 16.4% and 10.2%, respectively;

composite CR rates were 50.0% and 20.3%, respectively. Exposure-adjusted grade ≥3 adverse event (AE) rates were lower with gilteritinib (58.38 events/patient-year ) versus SC (168.30 E/PY). Common AEs with gilteritinib were anemia (77.9%) and thrombocytopenia (45.1%). Gilteritinib plasma concentration peaked ~4 h postdose;

~3-fold accumulation occurred with multiple dosing. The COMMODORE trial demonstrated that gilteritinib significantly improved OS and EFS in predominantly Asian patients, validating the outcomes of gilteritinib from the ADMIRAL trial in R/R FLT3mut+ AML.