NCT03471260 Ivosidenib and Venetoclax With or Without Azacitidine in Treating Patients With IDH1 Mutated Hematologic Malignancies

Eligibility & Interventions

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What to Expect as a Participant

You will actively receive the study intervention — which may be a drug, biologic, device, or procedure.

Phase 1 is the earliest stage of human testing — safety and dosage are the primary focus. Visits are frequent and medical supervision is intensive. You will be among the first people to receive this treatment.

This trial targets 96 participants in total. It began in 2018-03-19 with a primary completion date of 2027-09-30.

Brief Summary

This phase Ib/II trial studies the side effects and best dose of venetoclax and how well it works when given together with ivosidenib with or without azacitidine, in treating patients with IDH1-mutated hematologic malignancies. Venetoclax and ivosidenib may stop the growth of cancer cells by blocking some of the enzymes needed for cell growth. Drugs used in chemotherapy, such as azacitidine, work in different ways to stop the growth of cancer cells, either by killing the cells, by stopping them from dividing, or by stopping them from spreading. Giving ivosidenib and venetoclax with azacitidine may work better in treating patients with hematologic malignancies compared to ivosidenib and venetoclax alone.

Eligibility Criteria

Inclusion Criteria: 1. Age \> 18 years. 2. ECOG performance status of \< 2. 3. IDH1-R132 mutated disease status as assessed by local laboratory. 2HG-producing IDH1 variants outside of R132 (i.e. R100) may be eligible after discussion with the PI. 4. Relapsed/refractory AML, or treatment-naïve patients with AML who are not eligible for standard induction chemotherapy. Patients with high-risk MDS, MDS/MPN or MPN (defined as \> 10% bone marrow blasts, or intermediate or high risk by IPSS, R-IPSS or D-IPSS) that have failed standard therapy may also be eligible after discussion with the PI. 5. Adequate hepatic function (direct bilirubin \< 2 x ULN, ALT and/or AST \< 3x ULN) unless deemed to be related to underlying leukemia. 6. Adequate renal function including creatinine clearance \> 30 ml/min based on the Cockcroft-Gault equation. 7. Willing and able to provide informed consent 8. In the absence of rapidly proliferative disease, the interval from prior treatment to time of initiation will be at least 7 days for cytotoxic or non-cytotoxic (immunotherapy) agents. 9. Male subjects must agree to refrain from unprotected sex and sperm donation from initial study drug administration until 90 days after the last dose of study drug. Exclusion Criteria: 1. Patients with known allergy or hypersensitivity to ivosidenib or venetoclax. 2. Patients who have previously received either ivosidenib or venetoclax. 3. Patients with any concurrent uncontrolled clinically significant medical condition including infection, laboratory abnormality, or psychiatric illness, which could place the patient at unacceptable risk of study treatment. 4. The use of other chemotherapeutic agents or anti-leukemic agents is not permitted during study with the following exceptions (1) intrathecal chemotherapy for prophylactic use or for controlled CNS leukemia. (2) use of hydroxyurea and/or one dose of cytarabine (up to 2 g/m2) for patients with rapidly proliferative disease is allowed before the start of study therapy and for the first four weeks on therapy. 5. Patients receiving concomitant strong CYP3A inducers (avasimibe, carbamazepine, phenytoin, rifampin, rifabutin, St. John's wort) within 3 days of start of study therapy. 6. Patients with active graft-versus-host-disease (GVHD) status post stem cell transplant (patients without active GVHD on chronic suppressive immunosuppression and/or phototherapy for chronic skin GVHD are permitted after discussion with the PI). 7. Patients with any severe gastrointestinal or metabolic condition which could interfere with the absorption of oral study medications. 8. Patients with a concurrent active malignancy under treatment. 9. QTc interval using Fridericia's formula (QTcF) \> 450 msec. Bundle branch block and prolonged QTc interval are permitted after discussion with the PI. 10. Known active hepatitis B (HBV) or Hepatitis C (HCV) infection or known HIV infection. 11. Subject has a white blood cell count \> 25 x 10⁹/L. (Note: Hydroxyurea is permitted to meet this criterion.) 12. Nursing women, women of childbearing potential (WOCBP) with positive urine pregnancy test, or women of childbearing potential who are not willing to maintain adequate contraception a. Appropriate highly effective method(s) of contraception include oral or injectable hormonal birth control, IUD, and double barrier methods (for example a condom in combination with a spermicide).

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