Impact of DNA Repair Pathway Alterations on Sensitivity to Radium-223 in Bone Metastatic Castration-resistant Prostate Cancer

This study investigates how well radium-223 works in treating patients with castration-resistant prostate cancer than has spread to the bones (bone metastases). Prostate cancer is the most common cancer in men and the second leading cause of cancer death. Furthermore, many men with notably advanced disease have been found to have abnormalities in DNA repair. The purpose of this research is to study the role of a DNA repair pathway in prostate cancer, specifically in response to administration of radium-223, an FDA-approved drug known to cause DNA damage to cancerous cells. Understanding how defects in the DNA repair pathway affects radium-223 treatment of prostate, may help doctors help plan effective treatment in future patients.

NCT Number	NCT04489719
Lead Sponsor	University of Washington Collaborators: Bayer
Conditions	Castration-Resistant Prostate Carcinoma, Metastatic Malignant Neoplasm in the Bone, Metastatic Prostate Carcinoma, Stage IVB Prostate Cancer AJCC v8
Enrollment	48 participants
Start Date	2021-04-16
Primary Completion	2027-08-01 (estimated)
Study Completion	2030-08-01 (estimated)
Updated on ClinicalTrials.gov	2026-08-12