Acute Myeloid Leukemia Clinical Trial
Enasidenib and Azacitidine in Treating Patients With Recurrent or Refractory Acute Myeloid Leukemia and IDH2 Gene Mutation
This phase II trial studies how well enasidenib and azacitidine work in treating patients with IDH2 gene mutation and acute myeloid leukemia that has come back (recurrent) or does not respond to treatment (refractory). Enasidenib and azacitidine may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth.
I. To determine the clinical activity of enasidenib mesylate (AG221, IDHIFA) in combination with azacitidine (AZA) for patients with relapsed/refractory acute myeloid leukemia is measured by overall response rate (ORR).
I. To determine duration of response, event-free survival (EFS), and overall survival (OS).
II. To determine the safety of enasidenib in combination with azacitidine in patients with relapsed/refractory acute myeloid leukemia (AML).
I. To evaluate occurrence of minimal residual disease (MRD) negative status by IDH2 mutation analysis and flow cytometry.
II. To investigate possible relationships between baseline protein and gene expression signatures and mutation profile and clinical response to the combination.
III. To evaluate the incidence and characteristics of IDH-inhibitor related differentiation syndrome (IDH-DS) with combination therapy.
Patients receive azacitidine subcutaneously (SC) or intravenously (IV) over 30 minutes on days 1-7 and enasidenib mesylate orally (PO) once daily (QD) beginning on day 1. Cycles repeat every 4-6 weeks in the absence of disease progression or unacceptable toxicity.
After completion of study treatment, patients are followed up at 30 days and then every 3-6 months for up to 5 years.
Patients with AML or biphenotypic or bilineage leukemia (including a myeloid component) who have failed prior therapy. Patients with isolated extramedullary AML are eligible. The World Health Organization (WHO) classification will be used for AML
Elderly (> 60 years old) patients with newly diagnosed AML not eligible for intensive chemotherapy are also eligible
AML patients with prior history of myelodysplastic syndrome (MDS) or chronic myelomonocytic leukemia (CMML) regardless of prior therapy received, are eligible at the time of diagnosis of AML
Subjects must have documented IDH2 gene mutation
Eastern Cooperative Oncology Group (ECOG) performance status =< 3
Adequate renal function including creatinine < 2 unless related to the disease
Total bilirubin < 2 x upper limit of normal (ULN) unless increase is due to Gilbert's disease or leukemic involvement
Aspartate aminotransferase (AST) and/or alanine aminotransferase (ALT) < 3 x ULN unless considered due to leukemic involvement
Provision of written informed consent
Oral hydroxyurea and/or cytarabine (up to 2 g/m2) for patients with rapidly proliferative disease is allowed before the start of study therapy, as needed, for clinical benefit and after discussion with the principal investigator (PI). Concurrent therapy for central nervous system (CNS) prophylaxis or continuation of therapy for controlled CNS disease is permitted
Females must be surgically or biologically sterile or postmenopausal (amenorrheic for at least 12 months) or if of childbearing potential, must have a negative serum or urine pregnancy test within 72 hours before the start of the treatment
Women of childbearing potential must agree to use an adequate method of contraception during the study and until 3 months after the last treatment. Males must be surgically or biologically sterile or agree to use an adequate method of contraception during the study until 3 months after the last treatment
Patients with t(15;17) karyotypic abnormality or acute promyelocytic leukemia (French-American-British [FAB] class M3-AML)
Active and uncontrolled comorbidities including active uncontrolled infection, uncontrolled hypertension despite adequate medical therapy, active and uncontrolled congestive heart failure New York Heart Association (NYHA) class III/IV, clinically significant and uncontrolled arrhythmia as judged by the treating physician
Any other medical, psychological, or social condition that may interfere with study participation or compliance, or compromise patient safety in the opinion of the investigator
Pregnant or breastfeeding
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