New treatment for patients with relapsed acute myeloid leukemia

Phase 1/1b First-in-human Study of Autologous Chimeric Engulfment Receptor T-Cell CER-1236 in Patients With Acute Myeloid Leukemia, Myelodysplastic Syndrome, and Myelofibrosis (CertainT-1)

Phase 1 Interventional CERo Therapeutics Holdings, Inc. · NCT06834282

This study is testing a new treatment called CER-1236 to see if it can help people with relapsed acute myeloid leukemia feel better and improve their chances of recovery.

Quick facts

PhasePhase 1
Study typeInterventional
Enrollment18 (estimated)
Ages18 Years to 85 Years
SexAll
SponsorCERo Therapeutics Holdings, Inc. Industry-sponsored
Drugs / interventionscyclophosphamide, fludarabine
Locations4 sites (Sacramento, California and 3 other locations)
Trial IDNCT06834282 on ClinicalTrials.gov

What this trial studies

This is a first-in-human, multi-center, open-label phase 1/1b study evaluating the safety and preliminary efficacy of CER-1236, a novel chimeric engulfment receptor T-cell therapy, in patients with relapsed or refractory acute myeloid leukemia (AML) or TP53 mutated disease. The study consists of two parts: the first part focuses on determining the safety and recommended dose of CER-1236, while the second part assesses its efficacy in a larger cohort of patients. Participants will receive CER-1236 along with other treatments such as cyclophosphamide and fludarabine.

Who should consider this trial

Good fit: Ideal candidates include patients with relapsed or refractory acute myeloid leukemia who have measurable residual disease or TP53 mutations.

Not a fit: Patients with active autoimmune diseases or those who have previously received genetically modified cell therapies may not benefit from this study.

Why it matters

Potential benefit: If successful, this treatment could provide a new therapeutic option for patients with difficult-to-treat forms of acute myeloid leukemia.

How similar studies have performed: While this approach is novel, similar therapies targeting specific receptors have shown promise in other hematological malignancies.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients need to have a confirmed diagnosis of de novo or secondary AML, or myelodysplastic syndrome (MDS)/AML with 10% to 19% blasts, per the International Consensus Classification 2022 or the WHO 2022 classification.
* Absolute lymphocyte count \>0.3 x 109/L prior to apheresis.
* Eastern cooperative oncology group (ECOG) performance status 0 to 1.

Exclusion Criteria:

* Prior therapy with a permanently integrated, genetically modified cell product.
* No measurable leukemia on the screening bone marrow evaluation prior to any bridging therapy.
* Active autoimmune disease or history of autoimmune disease requiring treatment within the prior 2 years. Patients with history of autoimmune thyroiditis or type 1 diabetes well controlled on replacement regimen are eligible.
* A known hypersensitivity or severe allergy to fludarabine, cyclophosphamide, or study drug components or diluents.
* Any other medical, psychological, or social condition that may interfere with study participation or compliance, or compromise patient safety in the opinion of the physician.
* Primary immunodeficiency disorder.

Where this trial is running

Sacramento, California and 3 other locations

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions AMLAcute Myeloid LeukemiaRefractory Acute Myeloid LeukemiaRelapsed Acute Myeloid Leukemia
Last reviewed 2026-06-13 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.