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Study of Ivosidenib or Enasidenib with Chemotherapy for Patients with Newly Diagnosed Acute Myeloid Leukemia or Myelodysplastic Syndrome with IDH1 or IDH2 Mutation

Fast replyInvestigationalNo placebo
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What is this trial about?

A plain-language summary of the goals, design and what participants do

This clinical trial is focused on studying treatments for patients who have been newly diagnosed with either acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS). These are types of blood cancers that affect the bone marrow, where blood cells are made. The study is specifically for patients whose cancer cells have a mutation in the IDH1 or IDH2 genes. These mutations can affect how the cancer grows and responds to treatment.

The trial will test two medications, ivosidenib and enasidenib, which are taken as film-coated tablets. These medications are designed to target the specific gene mutations in the cancer cells. The study will compare the effects of these medications when used alongside standard chemotherapy treatments. Some patients will receive a placebo instead of the active medication to help researchers understand the true effects of the drugs being tested.

The purpose of the study is to see if these treatments can improve the time patients live without the cancer getting worse, known as event-free survival. Participants will go through different phases of treatment, including induction therapy, consolidation therapy, and maintenance therapy. These phases are designed to first reduce the number of cancer cells, then stabilize the condition, and finally maintain the results over time. The study aims to provide valuable information on how effective these treatments are for patients with these specific gene mutations in AML or MDS.

The research process

The trial runs in 5 steps – from screening to follow-up. Each step says what happens and what the team monitors.

  1. Step 1

    Joining the study

    Upon joining the study, eligibility is confirmed based on specific criteria, including age, medical condition, and genetic markers.

    Informed consent is required to participate in the study.

  2. Step 2

    Induction therapy

    Induction therapy involves the administration of chemotherapy combined with either ivosidenib or enasidenib.

    Ivosidenib is provided as a 250 mg film-coated tablet for oral use.

    Enasidenib is provided as a 100 mg film-coated tablet for oral use.

    The goal of this phase is to achieve remission of the disease.

  3. Step 3

    Consolidation therapy

    Following successful induction therapy, consolidation therapy is administered to maintain remission.

    This phase also involves the use of ivosidenib or enasidenib in combination with chemotherapy.

  4. Step 4

    Maintenance therapy

    Maintenance therapy is provided to prevent relapse after achieving remission.

    This phase continues the administration of ivosidenib or enasidenib.

  5. Step 5

    Monitoring and follow-up

    Throughout the study, regular monitoring is conducted to assess the effectiveness of the treatment and any side effects.

    Follow-up visits are scheduled to evaluate overall health and disease status.

Who can join the trial?

12 criteria

  • Must be at least 18 years old.
  • If female, must either be unable to have children (postmenopausal or surgically sterile) or agree to use effective birth control and not become pregnant during the study and for 6 months after the last study drug. Must also have a negative pregnancy test before starting the study, not breastfeed during the study and for 2 months and 1 week after, and not donate eggs during the study and for 6 months after.
  • If male, must use effective birth control with female partners who can have children during the study and for 4 months and 1 week after the last study drug. Must also not donate sperm during the study and for 4 months and 1 week after.
  • Must agree not to join another study while receiving treatment in this one.
  • Must have newly diagnosed **acute myeloid leukemia (AML)** or **myelodysplastic syndrome (MDS-EB2)** with a specific gene mutation (IDH1 or IDH2). If AML is due to previous blood disorders or treatments, these must have been present for at least 3 months. Previous treatment with certain drugs for MDS must have stopped at least four weeks before joining.
  • If having both FLT3 and IDH1 or IDH2 mutations, can join only if not suitable for FLT3 inhibitor treatment for medical or other reasons.
  • Must be eligible for strong chemotherapy treatment.
  • Must have a performance status of 2 or less, which means being able to carry out all self-care but unable to do any work activities.
  • Must have adequate liver function, shown by specific blood test results, unless certain conditions apply.
  • Must have adequate kidney function, shown by a creatinine clearance greater than 40 mL/min.
  • Must be able to understand and willing to sign a consent form agreeing to participate in the study.
  • Must provide written informed consent.

Who cannot join the trial?

5 criteria

  • Patients who do not have a newly diagnosed condition of either acute myeloid leukemia (a type of blood cancer) or myelodysplastic syndrome (a group of disorders caused by poorly formed or dysfunctional blood cells).
  • Patients who do not have an IDH1 or IDH2 mutation. These are specific changes in genes that can affect how cells grow.
  • Patients who are not eligible for intensive chemotherapy, which is a strong treatment using drugs to kill cancer cells.
  • Patients who are outside the specified age range for the study.
  • Patients who belong to a vulnerable population, which means they might need special protection or care.
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Investigated drugs

  • Ivosidenib

    is a medication used in this trial for patients with newly diagnosed acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS) who have a specific genetic mutation called IDH1. It is given in combination with other treatments to help improve the chances of survival without the disease getting worse.

  • Enasidenib

    is another medication used in the trial for patients with the same conditions but with a different genetic mutation called IDH2. Like ivosidenib, it is used alongside other therapies to help manage the disease and improve outcomes for patients.

What is already known about the treatment

  • Ivosidenib

    This medication is administered orally and is currently being studied in clinical trials for its effectiveness in treating acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS) with excess blasts-2, specifically in patients with an IDH1 mutation. It is classified as an isocitrate dehydrogenase-1 (IDH1) inhibitor. Ivosidenib works by blocking the abnormal enzyme activity caused by the IDH1 mutation, which can help to stop the growth of cancer cells. It is being evaluated for its potential to improve event-free survival when used in combination with standard chemotherapy treatments.

  • Enasidenib

    This medication is taken orally and is under investigation in clinical trials for its role in treating acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS) with excess blasts-2, particularly in patients with an IDH2 mutation. Enasidenib is classified as an isocitrate dehydrogenase-2 (IDH2) inhibitor. It functions by inhibiting the mutated IDH2 enzyme, which can help to reduce the growth of cancer cells. The current research aims to determine its effectiveness in enhancing event-free survival when combined with traditional chemotherapy regimens.

Investigated diseases

  • Acute myeloid leukemia

    Acute myeloid leukemia (AML) is a type of cancer that affects the blood and bone marrow, characterized by the rapid growth of abnormal white blood cells. These abnormal cells accumulate in the bone marrow, interfering with the production of normal blood cells. AML can lead to symptoms such as fatigue, frequent infections, and easy bruising or bleeding. The disease progresses quickly and requires prompt medical attention. It is more common in older adults but can occur at any age. AML is classified into different subtypes based on genetic and chromosomal abnormalities.

  • Myelodysplastic syndrome

    Myelodysplastic syndrome (MDS) is a group of disorders caused by poorly formed or dysfunctional blood cells. It occurs when the blood-forming cells in the bone marrow are damaged, leading to a shortage of one or more types of blood cells. Symptoms may include fatigue, shortness of breath, and increased risk of bleeding or infection. MDS can progress slowly or transform into acute myeloid leukemia in some cases. The condition is more prevalent in older adults and can vary in severity. MDS is often detected through routine blood tests showing abnormal blood cell counts.

Trial detailsLast updated 2 Oct 2026
Age18+ yearsPhasePhase IIITrial ID2022-502832-37-00Protocol codeHO150Estimated enrolment971 patientsSponsorHaemato Oncology Foundation For Adults Netherlands

sourced from the EU Clinical Trials Register and site verification

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On this site, “treatment” means an investigational medicine being studied in a clinical trial. Its safety and efficacy for the use being studied have not yet been confirmed, some participants may receive a placebo or a comparator medicine, and taking part does not guarantee any health benefit. The decision to take part is made by the doctor at the research site. This site is for information only and does not replace medical advice.

This service is not affiliated with the European Commission, the EMA, or the official CTIS system. Most information comes from publicly available international clinical-trial registries, supplemented by data from academic sites, national regulators and commercial sponsors. On this site, “treatment” and “therapy” mean a medicine being tested in a clinical trial. Its safety and effectiveness in the use being studied are not yet confirmed, some participants may receive a placebo or a comparator, and taking part does not guarantee a health benefit. The doctor at the research site decides who can take part. This site provides information, not medical advice. Certain content and visual elements on this website have been generated or enhanced using artificial intelligence (AI).