ClinicalTrials.gg
RecruitingNCT03471260Updated Sep 14, 2026

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

A Phase 1/2 interventional study of Azacitidine and Ivosidenib in Acute Myeloid Leukemia, Hematopoietic and Lymphoid System Neoplasm and Myelodysplastic Syndrome, sponsored by M.D. Anderson Cancer Center. Recruiting at 4 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-14.

Sponsored by M.D. Anderson Cancer Center · Phase 1/2, Interventional, and Treatment

From the registry’s dates

  • Started Mar 2018; still recruiting 8 years 7 months later.
Phase
Phase 1/2
Study type
Interventional
Enrollment
96
Allocation
Not applicable
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-13

Among 22 studies testing ivosidenib in Leukemia, Myeloid, Acute — 14 open to participants now, 19 under way, 4 of them phase 3. ivosidenib · Leukemia, Myeloid, Acute.

Planned enrollment
9th of 22
96 · median 72
Started
2018
the only one that year
Phase 1/2
2 of 22
2 open now
Primary completion
2027-09
later than 8 of 18 live
Registered
5th of 22
by date
Lead sponsor
3 of 22
M.D. Anderson Cancer Center

Among the 22 studies testing ivosidenib in Leukemia, Myeloid, Acute, this one is the 9th largest by planned enrollment, is the only one that started in 2018, is one of 2 in phase 1/2, reaches primary completion later than 8 of the 18 other live ones, and was the 5th registered.

Leukemia, Myeloid, Acute

3,667 studies on the registry are indexed under Leukemia, Myeloid, Acute; 816 are open to participants now.

Browse Leukemia, Myeloid, Acute studies →

Open to participants now

14 of the 22 studies testing ivosidenib in Leukemia, Myeloid, Acute are open now, in 8 countries. Recruiting first, the newest first:

8 more — sign in →

By country, each count listing its studies:

All 14 open studies →

About ivosidenib

ivosidenib: first FDA approval 2018 (TIBSOVO), first EMA approval 2023. What it is approved for, and how studies give it, is on its page →

Who these studies take

Of the 625 Leukemia, Myeloid, Acute studies recruiting now, 362 (58%) set no upper age limit and 222 (36%) stop at 75 or younger; 145 take children under 18; 29 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 22 studies testing ivosidenib in Leukemia, Myeloid, Acute, or all of them as a file.
02

Study 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.

Read the detailed 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.

03

Conditions studied

  • Acute Myeloid Leukemia
  • Hematopoietic and Lymphoid System Neoplasm
  • Myelodysplastic Syndrome
  • Myeloproliferative Neoplasm
  • Recurrent Acute Myeloid Leukemia
  • Refractory Acute Myeloid Leukemia
04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Age > 18 years.
  2. 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. 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 \< 2 x , and/or AST \< 3x ULN) unless deemed to be related to underlying leukemia.
  6. Adequate renal function including > 30 ml/min based on the Cockcroft-Gault equation.
  7. Willing and able to provide
  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

Exclusion Criteria:

  1. Patients with known allergy or to ivosidenib or venetoclax.
  2. Patients who have previously received either ivosidenib or venetoclax.
  3. Patients with any concurrent uncontrolled 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 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 () status post stem cell transplant (patients without active GVHD on chronic suppressive 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 under treatment.
  9. using Fridericia's formula (QTcF) > 450 msec. Bundle branch block and prolonged QTc interval are permitted after discussion with the PI.
  10. Known active (HBV) or (HCV) infection or known 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 (WOCBP) with positive urine pregnancy test, or women of childbearing potential who are not willing to maintain adequate 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).
Terms in these criteria, in plain language(19)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

ECOG performance status

A scale of how much an illness limits everyday activity. For people being assessed to join a study, scores run from 0 (fully active) to 4; lower is more active.

0
Fully active, no restrictions.
1
Limited in strenuous activity, but walking and able to do light work, such as housework or office work.
2
Walking and able to look after yourself, but unable to work; up and about more than half of waking hours.
3
Able to look after yourself only in part; in bed or a chair more than half of waking hours.
4
Unable to look after yourself at all; in bed or a chair all day.

Studies most often ask for 0–1 or 0–2. Your doctor gives the score; the WHO scale uses the same steps. The full scale also has 5, which records death.

Relapsed and refractory

Relapsed: the illness came back after treatment had worked. Refractory: it did not respond to treatment, or stopped responding while still on it.

Bilirubin

A yellow substance made when red blood cells are broken down, which the liver clears. A high level can mean a problem with the liver or the bile ducts.

Criteria often allow more for people with Gilbert’s syndrome, a harmless inherited condition that raises bilirubin.

ULN (upper limit of normal)

The top of the normal range for a blood test, as set by the laboratory that runs it. Each lab prints its own range next to your result.

“≤ 2.5 × ULN” means the result can be up to two and a half times that top value.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

Creatinine clearance (CrCl)

How quickly the kidneys clear creatinine, a waste product, from the blood. A study may estimate it from a blood test with age, weight and sex (often by the Cockcroft–Gault formula), or measure it using blood and urine collected over a set time. Given in mL/min; higher is better.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

CYP3A (CYP3A4) inhibitors and inducers

CYP3A is a group of enzymes, mainly CYP3A4, in the liver and gut that break down many medicines. Some medicines, supplements and foods (grapefruit, St John’s wort) slow them down or speed them up, which changes how much of a study drug stays in the body.

Studies list them so they can be avoided or switched; bring a list of everything you take, including supplements.

GVHD (graft-versus-host disease)

After a transplant from a donor, the donor’s immune cells attack the recipient’s body, often the skin, gut or liver.

Immunosuppression

A weakened immune system. It can come from an illness, such as HIV or some blood cancers, or from medicines that turn the immune system down, for example after an organ transplant or for an autoimmune disease; steroids at higher doses count.

Read whether the line is about a condition or about medicines, and which medicines and doses it means.

Cancer (malignancy)

Malignancy means cancer. Criteria about another or earlier malignancy ask whether you have had a different cancer, usually within a set number of years.

Some are commonly allowed, such as treated skin cancers other than melanoma and early cancers removed completely — check the exceptions this study lists.

QT and QTc

On an ECG, the QT interval is the time the heart’s lower chambers take to activate electrically and recover in each beat. QTc is that time adjusted for heart rate (QTcF by Fridericia’s formula, QTcB by Bazett’s). Some medicines lengthen it, and a long QTc can raise the risk of a dangerous heart rhythm.

The study may name a correction formula and a limit in milliseconds, often around 450–480.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

Childbearing potential

Able to become pregnant: from the first period until menopause, unless permanently unable to through surgery (removal of the womb, or of both ovaries or both fallopian tubes).

Criteria for people of childbearing potential usually ask for a negative pregnancy test and for contraception during the study and for a time after it.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

05

Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
96 participants (estimated)

Study arms

  • Experimental
    Treatment (venetoclax, ivosidenib, azacitidine)

    Patients receive venetoclax 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 IV over 30-60 minutes or SC on days 1-7. Cycles repeat every 28 days in the absence of disease progression or unacceptable toxicity.

    Drug: Azacitidine · Drug: Ivosidenib · Drug: Venetoclax

Interventions

  • Given IV or SC

    Also known as: 5 AZC, 5-AC, 5-Azacytidine, 5-AZC, Azacytidine, Azacytidine, 5-, Ladakamycin, Mylosar, Onureg, U-18496, Vidaza

  • Given PO

    Also known as: AG-120, Tibsovo

  • Given PO

    Also known as: ABT-0199, ABT-199, ABT199, GDC-0199, RG7601, Venclexta, Venclyxto

06

What researchers measure

Primary outcomes

  1. 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.

    Time frame: Up to 3 years

  2. Incidence of adverse events

    Will be collected using leukemia adverse event guidelines.

    Time frame: Up to 3 years

  3. Dose-limiting toxicity

    Defined as any grade 3 or 4, clinically significant non-hematologic adverse event or abnormal laboratory value.

    Time frame: Up to 56 days

Secondary outcomes

  1. Response to therapy

    Will be calculated.

    Time frame: Up to 3 years

  2. Duration of response

    Will be calculated.

    Time frame: From the date of initial response to first documented disease progression/relapse or death, assessed up to 3 years

  3. Event-free survival

    Will be calculated.

    Time frame: From treatment initiation to date of documented treatment failure, relapse, or death from any cause, assessed up to 3 years

  4. Overall survival

    Will be calculated.

    Time frame: Up to 3 years

Other outcomes

  1. 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.

    Time frame: Up to 3 years

  2. 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.

    Time frame: Up to 3 years

07

Study locations

4 of 4 sites recruiting
08

References and documents

Publications

  • DiNardo CD, Marvin-Peek J, Loghavi S, Takahashi K, Issa GC, Jen WY, Daver NG, Reville PK, Short NJ, Sasaki K, Mullin JK, Bradley CA, Borthakur G, Maiti A, Alvarado Y, Pemmaraju N, Abbas HA, Hammond DE, Haddad F, Bravo GM, Chien KS, Yilmaz M, Kornblau SM, Jabbour E, Ravandi F, Kadia T, Garcia-Manero G, Konopleva MY, Kantarjian HM. Outcomes of Frontline Triplet Regimens With a Hypomethylating Agent, Venetoclax, and Isocitrate Dehydrogenase Inhibitor for Intensive Chemotherapy-Ineligible Patients With Isocitrate Dehydrogenase-Mutated AML. J Clin Oncol. 2025 Aug 20;43(24):2692-2699. doi: 10.1200/JCO-25-00640. Epub 2025 Jun 13. PubMed 40513054 ↗
  • Greenberg PL, Stone RM, Abaza Y, Al-Kali A, Anand S, Ball B, Bennett JM, Borate U, Brunner AM, Chai-Ho W, Curtin P, DeZern AE, Gaensler K, Gahvari Z, Garcia-Manero G, Griffiths EA, Haque T, Jacoby M, Jonas BA, Keel S, Khanal R, Kishtagari A, Madanat Y, Maness LJ, McCurdy SR, McMahon C, Odenike O, Osman A, Reddy VV, Sallman DA, Sayar H, Shallis R, Singh A, Tanaka T, Thota S, Kovach E, Nguyen J, Hochstetler C. NCCN Guidelines(R) Insights: Myelodysplastic Syndromes, Version 2.2025. J Natl Compr Canc Netw. 2025 Mar;23(3):66-75. doi: 10.6004/jnccn.2025.0013. PubMed 40073835 ↗
  • Wilde L, Kasner M. Whom should we treat with novel agents? Specific indications for specific and challenging populations. Hematology Am Soc Hematol Educ Program. 2021 Dec 10;2021(1):24-29. doi: 10.1182/hematology.2021000228. PubMed 34889407 ↗
09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Mar 2018 (actual). Primary completion is estimated for Sep 2027, 114 months after the start.

Of 134 non-industry phase 1/2 interventional studies under Leukemia, Myeloid, Acute, half reached primary completion within 76 months of starting (the median), counting those still running; a quarter within 49 and three quarters within 110. This study's planned 114 months is above that.

Counting every sponsor, half of 226 studies reached it within 73 months; a quarter within 48 and three quarters within 106.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 2, 2018
First posted
Mar 20, 2018
StartActual
Mar 19, 2018
Primary completionEst.
Sep 30, 2027
CompletionEst.
Sep 30, 2027
Last update
Sep 14, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 14, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03471260
Responsible party
Sponsor
First posted
Mar 20, 2018
Start date
Mar 19, 2018
Primary completion
Sep 30, 2027 (estimated)
Completion
Sep 30, 2027 (estimated)
Last update
Sep 14, 2026

Study contacts

Courtney DiNardo, MD
Contact
cdinardo@mdanderson.org
713-794-1141
Courtney DiNardo, MD
principal investigator · M.D. Anderson Cancer Center

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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Studies of the drug tested here: Ivosidenib

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