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NCT07295951CompletedPhase 1

A Study of 14C-Bleximenib (Radiolabeled) in Participants With Acute Leukemia

An Open-Label Study to Investigate the Absorption, Metabolism, And Excretion (AME) Of 14C-Bleximenib (JNJ-75276617) in Participants With Acute Leukemia

Source: ClinicalTrials.gov · Last updated 25 Sept 2026

Brief summary (registry, in English)

The purpose of this study is to assess how the body absorbs, breaks down (metabolism), and removes (excretes) radiolabeled bleximenib (a drug molecule that has been chemically bonded with a radioactive isotope which emits radiation making it easier to track in the body) in participants with acute leukemia (highly aggressive blood cancer typically characterized by large numbers of immature white blood cells in the bone marrow).

Status (registry)
Completed
Phase (registry)
Phase 1
Study type
Interventional
Enrollment
6 (actual)
First submitted
9 Dec 2025
Start date
18 Nov 2025
Primary completion date
21 Jul 2026
Lead sponsor
Janssen Research & Development, LLC
NCT number
NCT07295951

What you commit to

  • Study type: Interventional · Phase 1
  • Participants enrolled: 6
  • From 18 Nov 2025 to the primary completion date, 21 Jul 2026
  • 1 site in 1 country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Recipient of solid organ transplant
  • Any toxicity (except for alopecia, stable peripheral neuropathy, thrombocytopenia, neutropenia, anemia) from previous anticancer therapy that has not resolved to baseline or to Grade 1 or less
  • Major surgery (e.g., requiring general anesthesia) within 2 weeks prior to first dose of study treatment or has not recovered from surgery or has major surgery planned during the time the participant is receiving study treatment

Other illness

  • Acute promyelocytic leukemia or diagnosis of Down syndrome associated leukemia, according to world health organization (WHO) 2016 criteria
  • Active central nervous system (CNS) disease

Who the study is looking for

  • Body weight greater than or equal to (\>=) 40 kilograms (kg)
  • Relapsed or refractory (R/R) acute leukemia harboring histone-lysine N-methyltransferase 2A (KMT2A), nucleophosmin 1 (NPM1), nucleoporin 98 (NUP98) or nucleoporin 214 (NUP214) gene alterations, and has exhausted, or is ineligible for available therapeutic options
  • Eastern cooperative oncology group (ECOG) performance status grade of 0 or 1
  • Regular bowel movements (that is \[i.e.\], average production of at least one stool every 2 days)
  • A woman of childbearing potential must have a negative highly sensitive serum beta-human chorionic gonadotropin at screening and within 48 hours prior to the first dose of study treatment

Age in the registry: 18 years to - · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

Sites in registry order. Pick your city on the disease page to sort them by distance.

SiteCityCountrySite status
The Christie NHS Foundation Trust - Christie Hospital
Coordinator of this site? Confirm its status
ManchesterUnited KingdomUnknown status

This page is information, not medical advice. Discuss any trial with your doctor.