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RECRUITING

NCT06611839

PHASE1/PHASE2

Venetoclax in Combination With Ivosidenib and Azacitidine for Newly Diagnosed IDH1-Mutated AML

Sponsor: Institute of Hematology & Blood Diseases Hospital, China

View on ClinicalTrials.gov

Summary

Venetoclax can bind to the BCL-2 protein, thereby initiating the apoptosis program and exerting anti-AML effects. The induction regimen combining venetoclax with hypomethylating agents (HMA) significantly improves the remission rate (over 60%) in elderly unfit AML patients and markedly prolongs survival in those achieving complete remission. Isocitrate dehydrogenase (IDH) 1 and 2 are involved in the citric acid cycle. Approximately 20% of AML patients carry IDH1 or IDH2 mutations, which lead to the reduction of α-ketoglutarate to 2-hydroxyglutarate (2-HG). 2-HG can cause histone methylation and inhibit TET2 activity, resulting in DNA hypermethylation, thereby affecting gene expression and cell differentiation. IDH mutations are more common in elderly patients and are often associated with cytogenetic abnormalities; they may also co-occur with FLT3-ITD, NPM1, or DNMT3A mutations. Ivosidenib is an IDH1 inhibitor, and previous studies have confirmed its safety and efficacy in AML treatment. According to adult AML treatment guidelines, IDH-mutated patients eligible for intensive chemotherapy may receive IDH inhibitors during induction therapy. Based on the study by Montesinos et al. on the role of ivosidenib and azacitidine in IDH-mutated AML, for patients ineligible for intensive chemotherapy, a new treatment option has been added: IDH1-mutated AML patients may receive ivosidenib (500 mg, days 1-28) combined with azacitidine (75 mg/m²/day for 7 days) in 28-day cycles, or ivosidenib monotherapy. Recent studies have shown that a triple-drug regimen comprising ivosidenib, venetoclax, and azacitidine demonstrates excellent efficacy and safety. In chemotherapy-ineligible patients, the triple regimen achieved a composite complete remission rate (CRc) of 86% and an overall response rate (ORR) of 92%. At a median follow-up of 27.4 months, the 2-year overall survival (OS) was 72%, and the 2-year event-free survival (EFS) was 72%. Therefore, this study aims to conduct a multicenter, single-arm clinical trial to preliminarily evaluate the long-term efficacy of this combination in adult AML.

Official title: A Multicenter, Single-Arm Clinical Study of the Venetoclax, Ivosidenib, and Azacitidine Triple-Drug Regimen in the Treatment of Chemotherapy-eligible Adult Patients With IDH1-Mutated Acute Myeloid Leukemia.

Key Details

Gender

All

Age Range

14 Years - Any

Study Type

INTERVENTIONAL

Enrollment

Start Date

2025-10-17

Completion Date

2028-10-01

Last Updated

2026-05-13

Healthy Volunteers

Conditions

AML IDH1 Mutation Treatment

Interventions

DRUG

Ivosidenib, Venetoclax, Azacitidine

Induction therapy：Ivosidenib 500mg d1-28 Venetoclax 100mg d1，200mg d2，400mg d3, 800mg d4-14 Azacitidine 75mg/m2/d, d1-7 . Consolidation therapy: intermediate-dose cytarabine regimen ： 3 courses If IDH1 mutant residual disease was positive before consolidation chemotherapy, Ivosidenib was added; Maintenance treatment: Azacitidine、Venetoclax 、Ivosidenib： 6 courses

Inclusion Criteria: 1. Patients who meet AML according to WHO (2022) or AML and MDS/AML defined by ICC standards with IDH1 mutations detected by PCR or second-generation sequencing. 2. Age ≥14 years old, male or female. 3. The physical status assessment (ECOG-PS) of the Eastern Oncology Collaboration group was 0-2 points. 4. Fulfill the requirements of the following laboratory tests (performed within 7 days prior to treatment) : 1. Total bilirubin ≤ 1.5 times the upper limit of normal value (same age); 2. AST and ALT≤ 2.5 times the upper limit of normal value (same age); 3. Blood creatinine \&lt; 2 times the upper limit of normal (same age); 4. Myocardial enzymes \&lt; 2 times the upper limit of normal (same age); 5. Left ventricular ejection fraction \&gt;50% by measure of echocardiogram (ECHO) Informed consent must be signed before the commencement of all specific study procedures, and is signed by the patient himself or his immediate family. Considering the patient\&#39;s condition, if the patient\&#39;s signature is not conducive to the treatment of the condition, the informed consent shall be signed by the legal guardian or the patient\&#39;s immediate family. Exclusion Criteria: Subjects who meet any of the following criteria are excluded from the study: 1. Acute promyelocytic leukemia with PML-RARA fusion gene 2. Acute myeloid leukemia with RUNX1-RUNX1T1 or CBFB-MYH11 fusion gene 3. Acute myeloid leukemia with BCR-ABL fusion gene 4. Treated patients (but can receive hydroxyurea or cytarabine to lower tumor burden). 5. Concurrent malignant tumors of other organs (those requiring treatment). 6. Active heart disease, defined as one or more of the following: 1. A history of uncontrolled or symptomatic angina; 2. Myocardial infarction less than 6 months after enrollment; 3. Have a history of arrhythmia requiring drug treatment or severe clinical symptoms; 4. Uncontrolled or symptomatic congestive heart failure (\&gt; NYHA level 2); 7. Serious infectious diseases (uncured tuberculosis, pulmonary aspergillosis). 8. Those who were not considered suitable for inclusion by the researchers.

Locations (1)

Blood Diseases Hospital

Tianjin, Tianjin Municipality, China