Clinical trial Recruiting at 1 site Phase 1 Interventional Ages 18 and up

Combining venetoclax and 6-mercaptopurine for treating relapsed or refractory acute myeloid leukemia

Official title: ABT-199 (Venetoclax) and Purine Analogues as Novel Oral Drug Combination for Treatment of Relapsed/Refractory Acute Myeloid Leukemia: the ApoAML Trial

Run by University Hospital, Antwerp · NCT05506332 · Data updated 2026-11-12

This study is testing if combining two drugs, venetoclax and 6-mercaptopurine, can help adults with relapsed or stubborn acute myeloid leukemia feel better.

More Acute Myeloid Leukemia, in Relapse trials

Quick facts

PhasePhase 1
Study typeInterventional
Ages18 Years and up
SexAll
Enrollment10 (estimated)
SponsorUniversity Hospital, Antwerp
Academic / other
Drugs / interventionschemotherapy
Locations2 sites (Edegem, Antwerp and 1 other locations)
StatusRecruiting
StartedJuly 15, 2022
Main results expectedDecember 2024
Study endsDecember 2026
Registry record updatedAugust 18, 2022
Trial IDNCT05506332 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates for this study are adults aged 18 and older with relapsed or refractory acute myeloid leukemia who have not been previously treated with venetoclax.

Probably not a fit

Patients with active central nervous system disease or those currently participating in other interventional clinical trials may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a non-commercial, open-label phase Ib study designed to evaluate the effectiveness of the combination of venetoclax and 6-mercaptopurine in patients suffering from relapsed or refractory acute myeloid leukemia (AML). The study aims to enroll adult patients who have experienced a relapse after or are refractory to previous chemotherapy treatments. Participants will receive the specified drug combination to assess its impact on their condition. The study will monitor patient responses and side effects to determine the treatment's efficacy.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with difficult-to-treat relapsed or refractory AML.

How similar studies have gone: While this approach is being explored in this specific combination, similar studies have shown promise in treating AML with targeted therapies, suggesting potential for success.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Relapsed or refractory AML
* Relapsed after or refractory to at least one cycle of intensive chemotherapy (combination of ara-c/anthracyclin) or four cycles of HMA (hypomethylating agents)
* Adult AML aged \>/= 18 years
* WHO performance status: grade 0-2 at the time of enrollment
* ABT-199 (venetoclax) and PA-naïve. Patient may be prior exposed but not refractory to venetoclax. In case of previous therapy with venetoclax inclusion is only possible after discussion with the PI.

Exclusion Criteria:

* Participation in any other interventional clinical trial during the study period
* Active presence (or known history of) central nervous system disease
* History or concomitant presence of any other malignancy, except for non-melanoma skin cancer, carcinoma in situ of the cervix, any other effectively treated malignancy that has been in remission for \>5 years or that is highly likely to be cured at the time of enrollment.
* Active HIV, hepatitis B or hepatitis C infection
* Use of any antitumoral agent within less than 5 times the half-life of the agent prior to the screening bone marrow examination. After the screening bone marrow examination, the use of cytoreductive treatment prior to the initiation of venetoclax is permitted in order to lower the WBC-count to \<25 000/µl (e.g. hydroxyurea).
* Medical conditions requiring chronic therapy of moderate or strong CYP3A4 inducers without alternative
* Patients with known hypersensitivity to the active substance or to any of the excipients
* Pregnant or breastfeeding woman
* Active uncontrolled systemic infection

Where it's running

  • University Hospital Antwerp
    Edegem, Antwerp, Belgium
    Recruiting
  • AZ Delta
    Roeselare, West Vlaanderen, Belgium
    Not yet recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.