HEC73543 Versus Salvage Chemotherapy in R/R FLT3-ITD AML

Leukemia, Acute Myeloid (AML) Clinical Trial

Official title:

HEC73543 Versus Salvage Chemotherapy in Relapsed or Refractory FLT3-ITD Acute Myeloid Leukemia: a Multicenter, Open-label, Randomized Phase 3 Trial

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT05586074
• Other study ID #: HEC73543-AML-301
• Status: Recruiting
• Phase: Phase 3
• Start date: March 3, 2023
• Est. completion date: May 14, 2026

Study information

• Verified date: October 2022
• Source: Sunshine Lake Pharma Co., Ltd.
• Contact: Lejie Zheng, MSc
• Phone: 86 18511702129
• Email: zhenglejie[@]hec.cn
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

A randomized，multicenter, open-label Phase III, clinical study is conducted to evaluate the clinical benefit Clifutinib in Chinese patients with relapsed/ refractory (R/R) FLT3-mutated AML as shown with overall survival compared to salvage chemotherapy, and also to investigate the efficacy of Clifutinib as assessed by CR/CRh rate in these subjects.

Description:

Subjects who are at least 18 years and above at the time of signing informed consent may participate in this study. Subjects will be randomized in a 2:1 ratio to receive Clifutinib or salvage chemotherapy. Subjects will enter the screening period up to 28 days prior to the start of treatment. Prior to randomization, a salvage chemotherapy regimen will be pre-selected for each subjects; options will include low-dose cytarabine (LoDAC), azacitidine, decitabine, Ara-C±IDA or FLAG±IDA. The randomization will be stratified by response to first-line therapy and pre-selected salvage chemotherapy. Participants will be administered treatment over continuous 28-day cycles.

After treatment discontinuation, participants will have a end-of-treatment visit within 7 days after treatment discontinuation, followed by a 30-day follow-up for safety. After that, long term follow-up will be done every 90 days.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 324
• Est. completion date: May 14, 2026
• Est. primary completion date: February 10, 2026
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

Inclusion Criteria:

• Subject is = 18 years of age at the time of obtaining informed consent.

• Subject has a diagnosis of primary acute myeloid leukemia (AML) or AML secondary to myelodysplastic syndrome (MDS) according to WHO classification;

• Subject is refractory to or relapsed after first-line AML therapy (with or without hematopoietic stem cell transplant )

• Subject is positive for FLT3 mutation in bone marrow or whole blood as determined by the central lab

• Subject has an Eastern Cooperative Oncology Group (ECOG) performance status of 0-2

• Subject is eligible for pre-selected salvage chemotherapy at the investigator's discretion

Exclusion Criteria:

• Subject has received prior treatment with other FLT3 inhibitors

• Subject has AML that has relapsed after or is refractory to more than 1 line of therapy

• Subject has an active uncontrolled infection

• Subject is known to have human immunodeficiency virus infection

• Subject has any condition which, in the investigator's opinion, makes the subject unsuitable for study participation

Related Conditions & MeSH terms

• Leukemia
• Leukemia, Acute Myeloid (AML)
• Leukemia, Myeloid, Acute

Intervention

Drug:
• Clifutinib
tablet, oral
• LoDAC
subcutaneous (SC) or intravenous (IV) injection
• Azacitidine
SC or IV
• Decitabine
IV
• Ara-C±IDA
SC and IV
• FLAG-IDA
SC and IV

Locations

Country	Name	City	State
China	the First Affiliated Hospital,College of Medicine,Zhejiang University	Hanzhou

Sponsors (1)

Lead Sponsor	Collaborator
Sunshine Lake Pharma Co., Ltd.

Country where clinical trial is conducted

China, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	OS	Overall survival was defined as the time from the date of randomization until the date of death from any cause	From the date of randomization until the date of death from any cause, assessed up to 5 years
Primary	CR/CRh rate	The CR/CRh rate was defined as the number of subjects who achieved either CR or CRh at any of the postbaseline visits divided by the number of subjects in the analysis population	From randomization until the data cut-off date of April 2025, all subjects included in the primary analysis of CR/CRh rate were followed up at least 4 months
Secondary	EFS	EFS was defined as the time from the date of randomization until the date of documented relapse, treatment failure, new anti-leukemia therapy or death from any cause	From randomization until the data cut-off date of June 2026, median time of follow-up for OS was 15 months
Secondary	CR rate	The CR rate was defined as the number of subjects who achieved the best response of CR divided by the number of subjects in the analysis population	From randomization until the data cut-off date of June 2026, all subjects included in the analysis of CR rate were followed up at least 4 months
Secondary	CRc Rate	CRc rate was defined as the number of subjects who achieved the best response of CRc (CR, CRh or CRi divided by the number of subjects in the analysis population	From randomization until the data cut-off date of June 2026, all subjects included in the analysis of CRc rate were followed up at least 4 months
Secondary	Adverse Events	Number of Participants With Adverse Events	From ICF signature date up to 30 days after the last dose of study drug, median treatment duration for Clifutinib was 140 days versus salvage chemotherapy 140 days