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

Acute Myeloid Leukemia Clinical Trial

Official title:

Phase Ib/II Investigator Initiated Study of the IDH1-Mutant Inhibitor Ivosidenib (AG120) With the BCL2 Inhibitor Venetoclax +/- Azacitidine in IDH1-Mutated Hematologic Malignancies

Clinical Trial Details — Status: Recruiting

Administrative data

• NCT number: NCT03471260
• Other study ID #: 2017-0490
• Secondary ID: NCI-2018-0092120
• Status: Recruiting
• Phase: Phase 1/Phase 2
• Start date: March 19, 2018
• Est. completion date: September 30, 2025

Study information

• Verified date: May 2024
• Source: M.D. Anderson Cancer Center
• Contact: Courtney DiNardo, MD
• Phone: 713-794-1141
• Email: cdinardo[@]mdanderson.org
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial 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.

Description:

PRIMARY OBJECTIVES:

I. To determine the safety and tolerability, maximum tolerated dose (MTD), and recommended phase 2 dose (RP2D) of the combination of ivosidenib with venetoclax, with or without the addition of azacitidine, in IDH1-mutated patients with advanced hematologic malignancies. (Phase Ib) II. To determine the overall response rate (ORR) including complete response (CR), CR with incomplete blood count recovery (CRi), morphologic leukemia-free state (MLFS), and partial response (PR) of the combination of ivosidenib and venetoclax, with or without the addition of azacitidine, in IDH1-mutated patients with acute myeloid leukemia (AML). (Phase II)

SECONDARY OBJECTIVES:

I. Characterize the pharmacokinetic (PK) profiles of venetoclax and ivosidenib in combination in plasma samples (in Part 1b).

II. To evaluate molecular and cellular biomarkers that may be predictive of antitumor activity and/or resistance to treatment including evaluation of 2HG, IDH1 VAF levels before, during and after treatment.

III. To determine time to event endpoints including duration of response (DOR), event free survival (EFS) and overall survival (OS).

EXPLORATORY OBJECTIVES:

I. Evaluate minimal residual disease (MRD) using multiparameter flow cytometry, cytogenetics and molecular evaluation.

II. Evaluate global gene expression profiles, deoxyribonucleic acid (DNA) methylation profiles, BH3 profiling and other potential prognostic markers to explore predictors of antitumor activity and/or resistance to treatment.

OUTLINE: This is a phase Ib, dose-escalation study of venetoclax followed by a phase II study.

Patients receive venetoclax orally (PO) daily on days 1-14. Patients also receive ivosidenib PO daily on days 15-28 of cycle 1 and days 1-28 of subsequent cycles. Patients may also receive azacitidine intravenously (IV) over 30-60 minutes or subcutaneously (SC) on days 1-7. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.

After completion of study treatment, patients are followed up at 30 days, and then monthly for 3 years.

Recruitment information / eligibility

• Status: Recruiting
• Enrollment: 96
• Est. completion date: September 30, 2025
• Est. primary completion date: September 30, 2025
• Accepts healthy volunteers: No
• Gender: All
• Age group: 18 Years and older

Eligibility

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 10?/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).

Related Conditions & MeSH terms

• Acute Myeloid Leukemia
• Hematologic Neoplasms
• Hematopoietic and Lymphoid System Neoplasm
• Leukemia
• Leukemia, Myeloid
• Leukemia, Myeloid, Acute
• Myelodysplastic Syndrome
• Myelodysplastic Syndromes
• Myeloproliferative Disorders
• Myeloproliferative Neoplasm
• Neoplasms
• Recurrent Acute Myeloid Leukemia
• Refractory Acute Myeloid Leukemia

Intervention

Drug:
• Azacitidine
Given IV or SC
• Ivosidenib
Given PO
• Venetoclax
Given PO

Locations

Country	Name	City	State
United States	Dana-Farber Cancer Institute	Boston	Massachusetts
United States	Cleveland Clinic Taussig Cancer Institute, Case Comprehensive Cancer Center	Cleveland	Ohio
United States	M D Anderson Cancer Center	Houston	Texas

Sponsors (1)

Lead Sponsor	Collaborator
M.D. Anderson Cancer Center

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Other	Plasma concentrations and pharmacokinetic parameter	Will be tabulated for each subject, visit, and dose level, and summary statistics will be computed for each sampling time and each parameter.	Up to 3 years
Other	Peripheral blood and bone marrow aspirate samples	Biomarker assays may include, but are not limited to, BH3 profiling and characterization of BCL-2 and related proteins, IDH1 mutant status, serum R-2HG analysis, and assessment of the depth of response and monitoring of disease recurrence by assessment of minimal residual disease in the bone marrow.	Up to 3 years
Primary	Overall response rate (ORR)	Defined as complete response (CR), CR with incomplete blood count recovery (CRi), morphologic leukemia-free state (MLFS), and partial response (PR) based on revised International Working Group (IWG) response criteria. Analysis will be performed for enrolled subjects.	Up to 3 years
Primary	Incidence of adverse events	Will be collected using leukemia adverse event guidelines.	Up to 3 years
Primary	Dose-limiting toxicity	Defined as any grade 3 or 4, clinically significant non-hematologic adverse event or abnormal laboratory value.	Up to 56 days
Secondary	Response to therapy	Will be calculated.	Up to 3 years
Secondary	Duration of response	Will be calculated.	From the date of initial response to first documented disease progression/relapse or death, assessed up to 3 years
Secondary	Event-free survival	Will be calculated.	From treatment initiation to date of documented treatment failure, relapse, or death from any cause, assessed up to 3 years
Secondary	Overall survival	Will be calculated.	Up to 3 years

External Links

•   M D Anderson Cancer Center