Study of HS-10382 Combination in Patients With Chronic Myeloid Leukemia (CML)

Prior treatment

• Previous treatment with a BCR-ABL1 TKI allosteric inhibitor .
• Clinically severe gastrointestinal dysfunction that may affect drug intake, transport or absorption.
• Severe infection within 4 weeks prior to the first scheduled dose of study drug

Other illness

• Impaired cardiac function including any one of the following:
• Myocardial infarction occurred within 6 months of the first scheduled dose of study drug.;
• Congestive heart failure occurred within 6 months of the first scheduled dose of study drug.;
• Uncontrollable angina.
• History of acute pancreatitis within 1 year of study entry or past medical history of chronic pancreatitis
• Any severe or uncontrolled systemic diseases (i.e. uncontrolled hypertension or diabetes).
• History of other malignancies.
• History of hypersensitivity to any active or inactive ingredient of HS-10382 and flumatinib.
• History of neuropathy or mental disorders, including epilepsy and dementia.

Lab values

• Resting corrected QT interval (QTc) \> 470 ms obtained from electrocardiogram (ECG), using the screening clinic's ECG machine and Fridericia's formula for QT interval correction (QTcF).
• Any factors that increase the risk of QTc prolongation or risk of arrhythmic events,
• Left ventricular ejection fraction (LVEF) ≤ 50%.

Other

• CML-CP patients who have acquired CCyR and have not lost it.
• Patients with CML-CP who have progressed to AP or blast phase(BP.)
• Patients with CML-AP who have obtained CHR or no evidence of CML in peripheral blood.
• Patients with CML-AP who have progressed to BP.
• Any clinically important abnormalities in rhythm, conduction, or morphology of the resting ECG.
• Inadequate other organ function.
• Judgment by the investigator that the patient should not participate in the study if the patient is unlikely to comply with study procedures, restrictions, and requirements

• Signed informed consent form.
• Men or women aged more than or equal to (≥) 18 years, and less than (\<) 75 years.
• CML-CP/AP patients with the Ph chromosome or BCR-ABL1 fusion genes.
• Patient with CML-CP/AP who are resistant to or intolerant to previous TKIs therapy.
• ECOG performance status of 0-1 and no worsening within 2 weeks before the first dose.
• Life expectancy ≥ 12 weeks.
• Men or women should be using adequate contraceptive measures throughout the study; Females should not be breastfeeding at the time of screening, during the study and until 6 months after completion of the study.
• Females must have evidence of non-childbearing potential.