Study to Evaluate Safety and Tolerability of CC-91633 (BMS-986397) in Participants With Relapsed or Refractory Acute Myeloid Leukemia or Relapsed or Refractory Higher-Risk Myelodysplastic Syndromes
Public ClinicalTrials.gov record NCT04951778. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
A Phase 1, Open-label, Dose-finding Study of CC-91633 (BMS-986397) in Subjects With Relapsed or Refractory Acute Myeloid Leukemia or Relapsed or Refractory Higher-Risk Myelodysplastic Syndromes
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
Study CC-91633-AML-001 is a Phase 1, open-label, dose escalation and expansion, first-in-human (FIH) clinical study of CC-91633 (BMS-986397) in participants with relapsed or refractory acute myeloid leukemia (R/R AML) or in participants with relapsed or refractory higher-risk myelodysplastic syndromes (R/R HR-MDS). The Dose Escalation part (Part A) of the study will enroll participants with R/R AML and R/R HR-MDS and will evaluate the safety and tolerability of escalating doses of CC-91633 (BMS-986397), administered orally, and determine the maximum tolerated dose (MTD) or preliminary recommended Phase 2 doses (RP2D) and schedule. Throughout the study, final decisions on dose escalation/de-escalation will be made by the safety review committee (SRC). Approximately 60 participants may be enrolled in Part A of the study. The expansion part (Part B) will confirm tolerability of the selected doses and schedules and evaluate whether efficacy is in a range that warrants further clinical development. Approximately 60 response-evaluable subjects per indication (R/R AML or R/R HR-MDS) may be enrolled. Parts A and B will consist of 3 periods: Screening, Treatment, and Follow-up.
Study identification
- NCT ID
- NCT04951778
- Recruitment status
- Terminated
- Study type
- Interventional
- Phase
- Phase 1
- Enrollment
- 56 participants
Conditions and interventions
Eligibility (public fields only)
- Age range
- 18 Years and older
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Dec 1, 2021
- Primary completion
- Jul 29, 2025
- Completion
- Jul 29, 2025
- Last update posted
- Aug 26, 2025
2021 – 2025
United States locations
- U.S. sites
- 5
- U.S. states
- 4
- U.S. cities
- 4
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| Local Institution - 107 | Boston | Massachusetts | 02114 | — |
| Local Institution - 101 | Boston | Massachusetts | 02215 | — |
| Local Institution - 105 | St Louis | Missouri | 63110 | — |
| Local Institution - 104 | Houston | Texas | 77030 | — |
| Local Institution - 109 | Seattle | Washington | 98104 | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
Non-U.S. locations
This page focuses on the U.S. directory. The official record also lists 4 non-U.S. sites.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT04951778, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Aug 26, 2025 · Synced Sep 20, 2026
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Open the official record
The complete protocol, eligibility criteria, and contact information for NCT04951778 live on ClinicalTrials.gov.