Of 53 FLT3-ITD positive, evaluable subjects, CR/CRh rate was 17.0% (9/53), and CRc rate was 45.3% (24/53). Among subjects administered with Clifutinib 40 mg daily, the CR/CRh rate was 18.2% (6/33) with 3 patients achieved CR, median DOR of CR/CRh was 5.7 months, the CRc rate was 48.5% (16/33), and median OS was 7.4 months....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.