Experimental leukemia drug trial halted early
NCT ID NCT05168202
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This early-stage study tested a new drug called CC-95251, alone or with other cancer drugs, in people with acute myeloid leukemia (AML) or myelodysplastic syndromes (MDS) that had come back or not responded to treatment. The main goals were to check safety and find the right dose. The study was terminated early, so results are limited.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 1
The first testing in people. Mainly checks safety and dose, usually in a small group.
- Participants
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56 people
The number who actually took part.
- Started
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Jan 2022
- Finished
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Jul 2024
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: • Eastern Cooperative Oncology Group Performance Status of 0 to 2 For Parts A \& B: * Relapsed or refractory (R/R) acute myeloid leukemia (AML) as defined by the 2016 WHO Classification * R/R myelodysplastic syndromes (MDS) as defined by the 2016 WHO Classification with intermediate, high or very high risk by Revised International Prognostic Scoring System (IPSS-R) For Part C: • Treatment-naïve (TN) (ie, previously untreated) MDS as defined by the 2016 WHO Classification with intermediate, high or very high risk by IPSS-R For Part D: • TN AML as defined by the 2016 WHO Classification, including secondary AML and therapy-related AML in participants who are ineligible (IE) for intensive chemotherapy (IC) and allogeneic hematopoietic stem cell transplant (HSCT) Exclusion Criteria: * Acute promyelocytic leukemia * Immediately life-threatening, severe complications of leukemia such as disseminated/uncontrolled infection, uncontrolled bleeding, and/or uncontrolled disseminated intravascular coagulation * Participants who have received prior treatment with a CD47 or SIRPα targeting agent * Participant is on chronic systemic immunosuppressive therapy or corticosteroids * Prior systemic cancer-directed treatments or investigational modalities ≤ 5 half-lives or 4 weeks prior to starting study treatment, whichever is shorter (relapsed or refractory participants only). * Any condition including, active or uncontrolled infection, or the presence of laboratory abnormalities, which places the participant at unacceptable risk if he/she were to participate in the study * Pregnant or nursing participants. Other protocol-defined inclusion/exclusion criteria apply
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
Locations
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Local Institution - 0001
Houston, Texas, 77030, United States
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Local Institution - 0005
Heidelberg, Victoria, 3084, Australia
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Local Institution - 0006
Clayton, Victoria, 3168, Australia
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Local Institution - 0010
Toronto, Ontario, M5G 2M9, Canada
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Local Institution - 0011
Vancouver, British Columbia, V5Z 1M9, Canada
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Local Institution - 0013
Oslo, N-0027, Norway
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Local Institution - 0014
Stockholm, 141 86, Sweden
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Local Institution - 0015
Lund, 22185, Sweden
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Local Institution - 0017
Rozzano, 20089, Italy
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Local Institution - 0018
Meldola, Emilia-Romagna, 47014, Italy
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Local Institution - 0019
Edmonton, Alberta, T6G 2B7, Canada
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Local Institution - 0020
Pessac, 33600, France
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Local Institution - 0021
Gothenburg, 413 45, Sweden
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Local Institution - 0023
Toulouse, 31059, France
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Local Institution - 0025
Bergen, 5021, Norway
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Local Institution - 0026
Milan, 20162, Italy
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Local Institution - 0027
Wollongong, New South Wales, 2500, Australia
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Local Institution - 0028
Santander, 39008, Spain
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Local Institution - 0029
Nantes, 44000, France
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Local Institution - 0030
Los Angeles, California, 90095, United States
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Local Institution - 0031
Palo Alto, California, 94304, United States
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Local Institution - 0032
Badalona, Barcelona [Barcelona], 08916, Spain
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Local Institution - 0035
Salamanca, 37007, Spain
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Local Institution - 0036
Madrid, 28007, Spain
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Local Institution - 0037
Melbourne, Victoria, 3065, Australia
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Local Institution - 0038
Montreal, Quebec, H3T 1E2, Canada
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Local Institution - 0039
Barcelona, 08041, Spain
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Local Institution - 0040
Marseille, 13009, France
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Local Institution - 0041
Villejuif, 94805, France
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Local Institution - 0044
Edinburgh, Midlothian, EH4 2XU, United Kingdom
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Local Institution - 0047
Miami, Florida, 33136, United States
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Local Institution - 0050
Oxford, Oxfordshire, OX3 7LE, United Kingdom
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