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Study identifier: NCT05113537 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Abemaciclib Before 177Lu-PSMA-617 for the Treatment of Metastatic Castrate Resistant Prostate Cancer

Condition: Castration-Resistant Prostate Carcinoma · Metastatic Prostate Adenocarcinoma · Stage IV Prostate Cancer AJCC v8  ·  Sponsor: Vadim S Koshkin

PhasePhase 1/Phase 2
Planned participants30
Who can joinAll sexes, 18 Years to no upper limit
Healthy volunteersNo

About this study

This phase I/II trial tests the safety, side effects, and best dose of abemaciclib and whether it works before 177Lu-PSMA-617 in treating patients with castration resistant prostate cancer that has spread to other places in the body (metastatic). Abemaciclib is in a class of medications called kinase inhibitors. It is highly selective inhibitors of cyclin-dependent kinase 4 and 6, which are proteins involved in cell differentiation and growth. It works by blocking the action of an abnormal protein that signals cancer cells to multiply. Radioligand therapy uses a small molecule (in this case 177Lu-PSMA-617), which carries a radioactive component to destroys tumor cells. When 177Lu-PSMA-617 is injected into the body, it attaches to the prostate-specific membrane antigen (PSMA) receptor found on tumor cells. After 177Lu-PSMA-617 attaches to the PSMA receptor, its radiation component destroys the tumor cell. Giving abemaciclib before 177Lu-PSMA-617 may help 177Lu-PSMA-617 kill more tumor cells.

This description comes directly from the study's public registry record.

Talk to the study team

UCSF Genitourinary Medical Oncology Recruitment  ·  877-827-3222  ·  GUTrials@ucsf.edu

Always discuss trial participation with your own doctor first.

Locations (1)

University of California, San FranciscoSan Francisco, California, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT05113537