Home › Myelodysplastic Syndromes › NCT06465953

Ivosidenib (IVO) Monotherapy and Azacitidine (AZA) Monotherapy in Patients With Hypomethylating Agent (HMA) Naive Myelodysplastic Syndromes (MDS) With an IDH1 Mutation

A Phase 3, Multicenter, Open Label, Randomized, Non-comparative Two-arm Study of Ivosidenib (IVO) Monotherapy and Azacitidine (AZA) Monotherapy in Adult Patients With Hypomethylating Agent (HMA) Naive Myelodysplastic Syndromes (MDS) With an Isocitrate Dehydrogenase-1 (IDH1) Mutation (PyramIDH Study)

Who can join

Ages 18 and older · All sexes

Inclusion Criteria:

* Diagnosis of HMA naive IDH1 R132 mutated MDS defined according to WHO criteria (5th edition):
* Moderate high, high and very high-risk MDS per IPSS-M score will be eligible regardless of blood counts and with blast counts 0-19%.
* Low and moderate low-risk MDS per IPSS-M score must:
* Have cytopenias related to MDS, defined as: \<100 platelets/microliter, or absolute neutrophil count (ANC) \<1000/mm3, or hemoglobin \<10g/dL AND
* Have a blast count between 5-19% AND
* Be eligible for HMA therapy (very low risk participants are to be excluded)
* Locally or centrally confirmed IDH1 R132 C/G/H/L/S mutation

Exclusion Criteria:

* Received prior anticancer/disease modifying treatment for MDS (including HMA's, cytotoxic chemotherapy, investigational agents, bcl-2 inhibitor based-regimens, hematopoietic stem cell transplant (HSCT), IDH1 inhibitors). For LR-MDS patients, prior treatment with growth factors, luspatercept, lenalidomide, and imetelstat are allowed.
* \>20% blasts by morphology or immunohistochemistry on screening bone marrow aspirate/biopsy

About the study

This study will enroll participants with myelodysplastic syndromes (MDS) with an Isocitrate dehydrogenase protein, 1 (IDH1) mutation, who have not received treatment with a hypomethylating agent previously. Participants will be randomized to receive either ivosidenib (IVO) alone or azacitidine (AZA) alone. IVO will be administered daily throughout the 28-day treatment cycle and AZA will be administered for the first 7 days of each 28-day cycle. Study visits will be conducted every week during Cycle 1 (Days 1, 8, 15, and 22), and Day 1 of each cycle thereafter. After the last dose of treatment, participants will attend an safety follow-up visit and participants will be followed to assess overall survival. Study visits may include a bone marrow aspirate, physical exam, echocardiogram (ECHO), electrocardiogram (ECG), blood and urine analysis, and questionnaires.

What is being tested

• Ivosidenib (drug)
• Azacitidine (drug)

Sponsor: Institut de Recherches Internationales Servier · Participants: 48 · Started: Dec 3, 2024

Contact the study team

• Institut de Recherches Internationales Servier (I.R.I.S.), Clinical Studies Department · Phone: +33 1 55 72 60 00

Official record on ClinicalTrials.gov — NCT06465953

Locations in the U.S.

Conditions

• Myelodysplastic Syndromes

From ClinicalTrials.gov, data retrieved Sep 29, 2026. Each study sets its own eligibility; the study team decides who can join.