**AMG 509** is being tested for safety and how well it works in adults with a type of prostate cancer that has spread and does not respond to usual hormone treatments. This study looks at the best dose for patients.
**Eligibility:** To join, patients must have a specific kind of prostate cancer and have tried certain treatments before. They need to have good organ function and no serious health issues. People with certain types of cancer or untreated brain cancer cannot join.
- Study involves multiple visits for treatment and check-ups.
- Participants may need to provide a sample of their tumor.
- Potential risks include common side effects of cancer treatment.
If you're interested, make sure to discuss with your doctor to see if this study is right for you.
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