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Study identifier: NCT04221542 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Study of AMG 509 in Participants With Metastatic Castration-Resistant Prostate Cancer

Condition: Prostate Cancer  ·  Sponsor: Amgen

PhasePhase 1
Planned participants479
Who can joinMale, 18 Years to no upper limit
Healthy volunteersNo

About this study

The overall aim of the trial is to evaluate the safety, tolerability, and pharmacokinetics (PK) of AMG 509 (monotherapy and in combination with abiraterone acetate and enzalutamide) and to evaluate preliminary efficacy. As of Protocol Amendment 10 (09 July 2025), only Parts 4A expansion, 6, and 7 are open to accrual.

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

Talk to the study team

Amgen Call Center  ·  866-572-6436  ·  medinfo@amgen.com

Always discuss trial participation with your own doctor first.

Locations (57)

City of Hope National Medical CenterDuarte, California, United StatesRecruiting
Providence Saint Jude Medical CenterFullerton, California, United StatesRecruiting
University of California San FranciscoSan Francisco, California, United StatesRecruiting
Rocky Mountain Cancer CentersAurora, Colorado, United StatesRecruiting
Yale New Haven HospitalNew Haven, Connecticut, United StatesRecruiting
Emory UniversityAtlanta, Georgia, United StatesRecruiting
Indiana UniversityIndianapolis, Indiana, United StatesRecruiting
MidAmerica Cancer CareMerriam, Kansas, United StatesRecruiting
Tulane Medical CenterNew Orleans, Louisiana, United StatesCompleted
Washington UniversitySt Louis, Missouri, United StatesRecruiting
Memorial Sloan Kettering Cancer CenterNew York, New York, United StatesRecruiting
Duke University Medical CenterDurham, North Carolina, United StatesRecruiting

+ 45 more locations — full list on the registry record.

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Source record: clinicaltrials.gov/study/NCT04221542