Open Actively Recruiting
Trial of DFP-10917 vs Non-Intensive or Intensive Reinduction for AML Patients in 2nd/3rd/4th Salvage
Phase III, multicenter, randomized study with two arms (1:1 ratio) enrolling patients with AML relapsed/refractory after 2, 3, or 4 prior induction regimens:Experimental arm: DFP-10917 14-day continuous intravenous (IV) infusion at a dose of 6 mg/m²/day followed by a 14-day resting period per 28-day cycles. Control arm: Non-Intensive Reinduction (LoDAC, Azacitidine, Decitabine, Venetoclax Combination Regimens) or Intensive Reinduction (High and Intermediate Dose Cytarabine Regimens), depending on the patient's prior induction treatment.
- Histologically or pathologically confirmed diagnosis of AML based on WHO classification that has relapsed after, or is refractory to, two, three, or four prior induction regimens that may have included intensive chemotherapy (e.g., "7+3" cytarabine and daunorubicin), epigenetic therapy (i.e., azacitidine or decitabine), or targeted therapy (e.g., FLT-3, IDH-1/2, BCL-2, monoclonal antibody). (Relapse is defined as reemergence of ≥5% leukemia blasts in bone marrow or ≥1% blasts in peripheral blood ≥90 days after first CR or CR without complete platelet recovery (CRp). Refractory AML is defined as persistent disease ≥28 days after initiation of intensive induction therapy (up to two induction cycles) or relapse <90 days after first CR or CRp. Refractory disease for patients undergoing hypomethylating agent induction is defined as lack of remission following at least 2 cycles of epigenetic therapy without reduction in bone marrow blast status.) Patients with a history of IPSS-R high or very high risk MDS that transformed to AML during treatment with hypomethylating drugs and then relapse following or are refractory to a subsequent AML induction regimen may be enrolled as Second Salvage AML patients. Additionally, patients with a history of MPN in accelerated phase (MPN-AP) or high-risk primary myelofibrosis (PMF) that transformed to AML during treatment with hypomethylating drugs and then relapse following or are refractory to a subsequent AML induction regimen may be enrolled as Second Salvage AML patients.
- Aged ≥ 18 years.
- ECOG Performance Status of 0, 1 or 2.
- Adequate clinical laboratory values (i.e., plasma creatinine <2.5 x upper limit of normal (ULN) for the institution, bilirubin <2.5 x ULN, alanine transaminase (ALT) and aspartate transaminase (AST) ≤2.5 x ULN).
- Absence of active central nervous system (CNS) involvement by leukemia. Patients with previously diagnosed CNS leukemia are eligible if the CNS leukemia is under control and intrathecal treatment may continue throughout the study.
- Absence of uncontrolled intercurrent illnesses, including uncontrolled infections, cardiac conditions, or other organ dysfunctions.
- Signed informed consent prior to the start of any study specific procedures.
- Women of child-bearing potential must have a negative serum or urine pregnancy test.
- Male and female patients must agree to use acceptable contraceptive methods for the duration of the study and for at least one month after the last drug administration.
- The interval from prior treatment to time of study drug administration is < 2 weeks for cytotoxic agents or < 5 half-lives for noncytotoxic agents. Exceptions: Use of hydroxyurea is allowed before the start of study and is to be discontinued prior to the initiation of study treatment. At the investigator's discretion, for patients with significant leukocytosis that develops during the early treatment cycles, hydroxyurea may be administered. The hydroxyurea should be discontinued as soon as clinically appropriate.
- Any >grade 1 persistent clinically significant toxicities from prior chemotherapy.
- Inadequate Cardiac (left ventricular ejection fraction ≤40%) function.
- White blood cell (WBC) count >15,000/μL (Note: Patients considered for possible venetoclax-containing regimen must have WBC ≤10k/μL prior to initiating venetoclax treatment).
- For patients with prior hematopoietic stem cell transplant (HSCT):
- Less than 3 months since HSCT
- Acute Graft versus Host Disease (GvHD) >Grade 1
- Chronic GvHD >Grade 1
- Any concomitant condition that in the opinion of the investigator could compromise the objectives of this study and the patient's compliance.
- A pregnant or lactating woman.
- Current malignancies of another type. Exceptions: Patients may participate if they have previously treated and currently controlled prostate cancer, or adequately treated in situ cervical cancer or basal cell skin cancer, or other malignancies with no evidence of disease for 2 years or more.
- Patient has acute promyelocytic leukemia (APL).
- Patients with known HIV, active HBV or active HCV infection (note: testing for these infections is not required). For patients with evidence of chronic hepatitis B virus (HBV) infection, the HBV viral load must be undetectable on suppressive therapy, if indicated. Patients with a history of hepatitis C virus (HCV) infection must have been treated and cured. For patients with HCV infection who are currently on treatment, they are eligible if they have an undetectable HCV viral load.
- Documented or known clinically significant bleeding disorder.
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