Abemaciclib With or Without Atezolizumab for mCRPC
Part of paid clinical trials in Boston, Massachusetts.
- Sponsor
- Dana-Farber Cancer Institute
- Study ID
- NCT04751929
- Phase
- PHASE2
- Status
- Active Not Recruiting
Conditions
Eligibility Criteria
- Sex
- MALE
- Age
- 18 Years - N/A
- Healthy Volunteers
- Not accepted
Interventions
- Abemaciclib — DRUGTaken orally 2x daily
- Atezolizumab — DRUGIntravenously Day 1 of 21 day cycle
Study Details
This trial is testing whether a molecularly targeted chemotherapy drug called abemaciclib and an immunotherapy drug called atezolizumab, alone or in combination, are effective in shrinking or preventing the growth of metastatic prostate cancer. The trial is also testing the safety of the combination of abemaciclib with atezolizumab.
Key Dates
- Start date
- Aug 20, 2021
- Status verified
- Feb 2026
- Primary completion
- Jun 17, 2024
- Completion
- Apr 30, 2026
Study Design
- Enrollment
- 19 participants (actual)
- Allocation
- RANDOMIZED
- Intervention model
- PARALLEL
- Primary purpose
- TREATMENT
Arms
- Experimental: Biomarker-Unselected Abemaciclib Monotherapy (Randomized)Participants in the Biomarker-Unselected Cohort, defined as those whose tumors are not known to have mutations in the CDK12 gene will be randomized to either receive Abemaciclib as monotherapy or in combination with Atezolizumab * Monotherapy : Participants will receive Abemaciclib orally 2x daily
- Experimental: Biomarker-Unselected Abemaciclib + Atezolizumab (Randomized)Participants in the Biomarker-Unselected Cohort, defined as those whose tumors are not known to have mutations in the CDK12 gene will be randomized to either receive Abemaciclib as monotherapy or in combination with Atezolizumab * Combination Therapy: Participants will receive Abemaciclib orally 2x daily and Atezolizumab intravenously Day 1 of each 21-Day cycle
- Experimental: CDK12 Mutation Atezolizumab Monotherapy (Non-Randomized)Participants in the CDK12 Mutation Cohort defined as those whose tumors are known to have mutations in the CDK12 gene are not randomized but are assigned to receive either Atezolizumab monotherapy or in combination with Abemaciclib based on how many participants in this cohort previously received study treatment. Atezolizumab monotherapy will be given to participants 1-5, these participants will receive Atezolizumab intravenously Day 1 of each 21-Day cycle
- Experimental: CDK12 Mutation Abemaciclib + Atezolizumab (Non-Randomized)Participants in the CDK12 Mutation Cohort defined as those whose tumors are known to have mutations in the CDK12 gene are not randomized but are assigned to receive either Atezolizumab monotherapy or in combination with Abemaciclib based on how many participants in this cohort previously received study treatment. Combination Therapy will be given to participants 6-21, these participants will receive Abemaciclib orally 2x daily and Atezolizumab intravenously Day 1 of each 21-Day cycle
Primary Outcome Measure
6-month Progression Free Survival (PFS) Rate [ Time Frame: 6 months ]
Locations (1)
| Facility | City | State | ZIP | Site coordinators |
|---|---|---|---|---|
| Dana Farber Cancer Institute | Boston | Massachusetts | 02215 | - |
Related coverage on Hipa.ai
- Atezolizumab + Abemaciclib in mCRPC: Mixed PFS and ORR ResultsAtezolizumab · Oct 2, 2025 · ClinicalTrials.gov
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