This phase 1 study has demonstrated an acceptable safety profile and a significant anti-leukaemic activity of clifutinib in FLT3 mutant R/R AML, with the best response at the dose of 40 mg/day in FLT3-ITD(+)/TKD(-) AML. A confirmatory phase 3 study is currently ongoing to further evaluate the efficacy and safety of clifutinib dosed at 40 mg/day in R/R AML pts after first-line therapy with FLT3-ITD(+)/TKD(-) (NCT05586074).
Conclusion Preliminary results of this phase 1 study demonstrated that Clifutinib has an acceptable safety profile and promising antitumor activity, especially at the dose of 40 mg daily. A confirmatory phase 3 study is planned to further evaluate the efficacy and safety of Clifutinib at 40 mg daily in FLT3-mutated R/R AML.