CancerDrs

Prostate Cancer clinical trials in California

103 actively recruiting prostate cancer trials at 89 sites across California.

Data from ClinicalTrials.gov · last refreshed

Payments from drug makers to the doctors running these trials

For 2 of the trials on this page, the pharmaceutical company funding the trial also disclosed payments to the physicians leading it — public data from the federal CMS Open Payments database. Paying clinical-trial investigators for site work is expected and necessary for industry-funded trials; the scale and source are simply useful context when you're deciding whether to enroll. See the full prostate cancer transparency page →

Phase 3 Recruiting Academic/Other

Testing Shorter Duration Radiation Therapy Versus the Usual Radiation Therapy in Patients With High Risk Prostate Cancer

This phase III trial compares stereotactic body radiation therapy (SBRT), (five treatments over two weeks using a higher dose per treatment) to usual radiation therapy (20 to 45 treatments over 4 to 9 weeks) for the treatment of high-risk …

Sponsor: NRG Oncology
NCT ID: NCT05946213
Sites in California:
  • Kaiser Permanente-Deer Valley Medical Center — Antioch, California
  • Tower Cancer Research Foundation — Beverly Hills, California
  • Kaiser Permanente Dublin — Dublin, California
  • Kaiser Permanente-Fremont — Fremont, California
  • Washington Hospital — Fremont, California
Phase 3 Recruiting Academic/Other

Testing the Addition of the Drug Apalutamide to the Usual Hormone Therapy and Radiation Therapy After Surgery for Prostate Cancer, INNOVATE Trial

This phase III trial studies whether adding apalutamide to the usual treatment improves outcome in patients with lymph node positive prostate cancer after surgery. Radiation therapy uses high energy x-ray to kill tumor cells and shrink tum…

Sponsor: NRG Oncology
NCT ID: NCT04134260
Sites in California:
  • Kaiser Permanente-Anaheim — Anaheim, California
  • Kaiser Permanente-Baldwin Park — Baldwin Park, California
  • Kaiser Permanente-Bellflower — Bellflower, California
  • Mercy Cancer Center - Carmichael — Carmichael, California
  • Mercy San Juan Medical Center — Carmichael, California
Phase 3 Recruiting Network

Treating Prostate Cancer That Has Come Back After Surgery With Apalutamide and Targeted Radiation Based on PET Imaging

This phase III trial tests two questions by two separate comparisons of therapies. The first question is whether enhanced therapy (apalutamide in combination with abiraterone + prednisone) added to standard of care (prostate radiation ther…

Sponsor: ECOG-ACRIN Cancer Research Group
NCT ID: NCT04423211
Sites in California:
  • Mission Hope Medical Oncology - Arroyo Grande — Arroyo Grande, California
  • Providence Saint Joseph Medical Center/Disney Family Cancer Center — Burbank, California
  • Mercy Cancer Center - Carmichael — Carmichael, California
  • Mercy San Juan Medical Center — Carmichael, California
  • City of Hope Corona — Corona, California
Phase 3 Recruiting Network

Standard Systemic Therapy With or Without Definitive Treatment in Treating Participants With Metastatic Prostate Cancer

This phase III trial studies how well standard systemic therapy with or without definitive treatment (prostate removal surgery or radiation therapy) works in treating participants with prostate cancer that has spread to other places in the…

Sponsor: SWOG Cancer Research Network
NCT ID: NCT03678025
Sites in California:
  • Kaiser Permanente-Deer Valley Medical Center — Antioch, California
  • Community Cancer Institute — Clovis, California
  • University Oncology Associates — Clovis, California
  • City of Hope Comprehensive Cancer Center — Duarte, California
  • Kaiser Permanente Dublin — Dublin, California
Phase 3 Recruiting Network

Docetaxel to Androgen Receptor Pathway Inhibitors in Patients With Metastatic Castration Sensitive Prostate Cancer and Suboptimal PSA Response

This study is being done to answer the following question: can the chance of prostate cancer growing or spreading be lowered by adding a drug to the usual combination of drugs? This study would like to find out if this approach is better o…

Sponsor: Canadian Cancer Trials Group
NCT ID: NCT06592924
Sites in California:
  • Mission Hope Medical Oncology - Arroyo Grande — Arroyo Grande, California
  • Tower Cancer Research Foundation — Beverly Hills, California
  • Providence Saint Joseph Medical Center/Disney Family Cancer Center — Burbank, California
  • Mercy Cancer Center - Carmichael — Carmichael, California
  • Mercy San Juan Medical Center — Carmichael, California
Phase 3 Recruiting Academic/Other

Testing the Addition of Docetaxel (Chemotherapy) to the Usual Treatment (Hormonal Therapy and Apalutamide) for Metastatic Prostate Cancer, ASPIRE Trial

This phase III trial compares the effect of adding docetaxel to hormonal therapy and apalutamide versus hormonal therapy and apalutamide alone in treating patients with prostate cancer that has spread from where it first started (primary s…

Sponsor: Alliance for Clinical Trials in Oncology
NCT ID: NCT06931340
Sites in California:
  • Kaiser Permanente Dublin — Dublin, California
  • Kaiser Permanente-Fremont — Fremont, California
  • Kaiser Permanente Fresno Orchard Plaza — Fresno, California
  • UC San Diego Moores Cancer Center — La Jolla, California
  • Kaiser Permanente- Modesto MOB II — Modesto, California
Phase 3 Recruiting Network

Testing Whether the Addition of Carboplatin Chemotherapy to Cabazitaxel Chemotherapy Will Improve Outcomes Compared to Cabazitaxel Alone in People With Castrate-Resistant Prostate Cancer That Has Spread Beyond the Prostate to Other Parts of the Body

This phase III trial compares the effect of adding carboplatin to the standard of care chemotherapy drug cabazitaxel versus cabazitaxel alone in treating prostate cancer that keeps growing even when the amount of testosterone in the body i…

Sponsor: SWOG Cancer Research Network
NCT ID: NCT06470243
Sites in California:
  • Tibor Rubin VA Medical Center — Long Beach, California
Phase 3 Recruiting Industry

Saruparib (AZD5305) vs Placebo in Men With Metastatic Castration-Sensitive Prostate Cancer Receiving Physician's Choice New Hormonal Agents

The intention of the study is to demonstrate superiority of Saruparib (AZD5305) + physician's choice NHA relative to placebo + physician's choice NHA by assessment of radiographic progression-free survival (rPFS) in participants with mCSPC.

Sponsor: AstraZeneca
NCT ID: NCT06120491
Sites in California:
  • Research Site — Bakersfield, California
  • Research Site — Fountain Valley, California
  • Research Site — Fullerton, California
  • Research Site — Los Angeles, California
  • Research Site — Los Angeles, California
Phase 3 Recruiting Industry

A Study of Opevesostat (MK-5684) Versus Alternative Next-generation Hormonal Agent (NHA) in Metastatic Castration-resistant Prostate Cancer (mCRPC) Post One NHA (MK-5684-004)

The purpose of this study is to assess the efficacy and safety of opevesostat plus hormone replacement therapy (HRT) compared to alternative abiraterone acetate or enzalutamide in participants with Metastatic Castration-resistant Prostate …

Sponsor: Merck Sharp & Dohme LLC
NCT ID: NCT06136650
Sites in California:
  • UCLA Hematology/Oncology - Santa Monica ( Site 0044) — Los Angeles, California
  • University of California, Irvine (UCI) Health - UC Irvine Medical Center ( Site 0040) — Orange, California
  • University of California, Irvine (UCI) Health - UC Irvine Medical Center (0120) — Orange, California
  • Stanford Cancer Center ( Site 0036) — Palo Alto, California
  • Emad Ibrahim,MD,INC. ( Site 0012) — Redlands, California
Phase 3 Recruiting Industry

A Study to Compare the Efficacy and Safety of BMS-986365 Versus the Investigator's Choice of Therapy in Participants With Metastatic Castration-resistant Prostate Cancer

The purpose of this study is to compare the efficacy and safety of BMS-986365 versus the investigator's choice of therapy in participants with Metastatic Castration-resistant Prostate Cancer.

Sponsor: Celgene
NCT ID: NCT06764485
Sites in California:
  • Local Institution - 0370 — Anaheim, California
  • Moores Cancer Center — La Jolla, California
  • Cancer and Blood Specialty Clinic — Los Alamitos, California
  • Local Institution - 0364 — Los Angeles, California
  • California Pacific Medical Center — San Francisco, California
Phase 3 Recruiting Industry

A Study of Pasritamig Versus Placebo in Late Line Metastatic Castration-resistant Prostate Cancer (mCRPC)

The purpose of this study is to evaluate the overall survival (length of time from the start of study to date of death from any cause) for pasritamig (JNJ-78278343) in combination with best supportive care (BSC) as compared to placebo with…

Sponsor: Janssen Research & Development, LLC
NCT ID: NCT07164443
Sites in California:
  • University of California at San Diego — La Jolla, California
  • Ronald Reagan UCLA Medical Center — Los Angeles, California
Phase 3 Recruiting Network

Androgen Suppression Combined With Nodal Irradiation and Dose Escalated Prostate Treatment

This study is being done to answer the following question: Is the strategy to give higher doses of radiotherapy treatment over a shorter period of time using special equipment and fewer treatments (also known as Stereotactic Body Radiation…

Sponsor: Canadian Cancer Trials Group
NCT ID: NCT06235697
Sites in California:
  • Kaiser Permanente-Deer Valley Medical Center — Antioch, California
  • Kaiser Permanente Dublin — Dublin, California
  • Kaiser Permanente-Fremont — Fremont, California
  • Kaiser Permanente Fresno Orchard Plaza — Fresno, California
  • Kaiser Permanente-Fresno — Fresno, California
Phase 3 Recruiting Industry

Study of Opevesostat (MK-5684) Versus Alternative NHA in mCRPC (MK-5684-003)

This is a phase 3, randomized, open-label study of opevesostat compared to alternative abiraterone acetate or enzalutamide in participants with metastatic castration-resistant prostate cancer (mCRPC) with respect to overall survival (OS) i…

Sponsor: Merck Sharp & Dohme LLC
NCT ID: NCT06136624
Sites in California:
  • University of California, Irvine (UCI) Health - UC Irvine Medical Center ( Site 0040) — Orange, California
  • Stanford Cancer Center ( Site 0036) — Palo Alto, California
  • Kaiser Permanente Riverside Medical Center ( Site 0099) — Riverside, California
Phase 3 Recruiting Industry

A Study to Learn How PF-06821497 (Mevrometostat) Works in Men With Metastatic Castration-resistant Prostate Cancer.

This study will explore whether a combination of the investigational drug PF-06821497 and enzalutamide will work better than taking enzalutamide alone in participants with mCRPC who are ARSi or abiraterone naïve.

Sponsor: Pfizer
NCT ID: NCT06629779
Sites in California:
  • Los Angeles Cancer Network (LACN) — Anaheim, California
  • Los Angeles Cancer Network (LACN) — Fountain Valley, California
  • Los Angeles Cancer Network (LACN) — Glendale, California
  • Los Angeles Cancer Network (LACN) — Glendale, California
  • Los Angeles Cancer Network (LACN) — Laguna Hills, California
Phase 3 Recruiting Industry

A Study of Metastases Free Survival With Saruparib vs Placebo Added to a Standard RT/ADT in Men With High-risk Prostate Cancer With a BRCA Mutation

The purpose of the study is to demonstrate superiority of Saruparib (AZD5305) relative to placebo added to a standard radiation therapy (RT) + androgen deprivation therapy (ADT) regimen by assessment of metastases-free survival in particip…

Sponsor: AstraZeneca
NCT ID: NCT06952803
Sites in California:
  • Research Site — La Jolla, California
  • Research Site — La Jolla, California
  • Research Site — Los Angeles, California
  • Research Site — San Diego, California
  • Research Site — San Luis Obispo, California
Phase 3 Recruiting Industry

A Study of Pasritamig With Docetaxel Versus Docetaxel in Participants With Metastatic Castration-Resistant Prostate Cancer

The purpose of this study is to find out whether treatment with pasritamig and docetaxel prolongs radiographic progression free survival (rPFS) (the length of time from start of treatment until disease worsens as determined by scans) when …

Sponsor: Janssen Research & Development, LLC
NCT ID: NCT07225946
Sites in California:
  • University Of California San Diego — La Jolla, California
  • USC Norris Comprehensive Cancer Center — Los Angeles, California
  • Valkyrie Clinical Trials — Los Angeles, California
  • Kaiser Permanente Southern California — Riverside, California
  • Sharp Center for Research — San Diego, California
Phase 3 Recruiting Industry

A Study of Xaluritamig Plus Abiraterone Versus Investigator's Choice in Participants With Chemotherapy-naïve Metastatic Castration-resistant Prostate Cancer

The primary objective of this study is to compare overall survival (OS) in participants receiving xaluritamig plus abiraterone against investigator's choice (docetaxel, cabazitaxel, or abiraterone).

Sponsor: Amgen
NCT ID: NCT07213674
Sites in California:
  • City of Hope National Medical Center — Duarte, California
  • City of Hope Orange County Lennar Foundation Cancer Center — Duarte, California
  • Providence Saint Jude Medical Center — Fullerton, California
Phase 2, Phase 3 Recruiting Federal

Veterans Affairs Seamless Phase II/III Randomized Trial of STAndard Systemic theRapy With or Without PET-directed Local Therapy for Oligometastatic pRosTate Cancer

This is a prospective, open-label, multi-center seamless phase II to phase III randomized clinical trial designed to compare SST with or without PET-directed local therapy in improving the castration-resistant prostate cancer-free survival…

Sponsor: VA Office of Research and Development
NCT ID: NCT04787744
Sites in California:
  • VA Long Beach Healthcare System, Long Beach, CA — Long Beach, California
  • VA Greater Los Angeles Healthcare System, West Los Angeles, CA — West Los Angeles, California
Phase 3 Recruiting Industry

Study Comparing AAA817+ARPI Versus Standard of Care in Adult Participants With PSMA-positive mCRPC

The purpose of this study is to determine whether \[225Ac\]Ac-PSMA-617 (AAA817), given for up to 6 cycles at a dose of 10 Megabecquerel (MBq) +/- 10%, plus androgen receptor pathway inhibitor (ARPI), improves the radiographic progression f…

Sponsor: Novartis Pharmaceuticals
NCT ID: NCT06855277
Sites in California:
  • Sansum Clinic — Santa Barbara, California
Phase 3 Recruiting Industry

The Study of 177Lu-TLX591 Plus SOC Versus SOC Alone in Patients With mCRPC (ProstACT Global)

The purpose of this study is to evaluate the efficacy and safety of 177Lu-TLX591 in patients with metastatic castration-resistant prostate cancer who have progressed following treatment with Androgen Receptor Pathway Inhibitor Treatment

Sponsor: Telix Pharmaceuticals (Innovations) Pty Limited
NCT ID: NCT06520345
Sites in California:
  • Chao Family Comprehensive Cancer Centre — Orange, California
Phase 3 Recruiting Academic/Other

Vascular Optimized Radiotherapy Tuned to Critical Structures for Erectile Function Using High-Precision X-Ray Treatment

With people living longer after being treated for prostate cancer, quality of life has become a concern when considering the treatment plan. Sometimes after radiation therapy, patients may experience problems that affect the urinary and bo…

Sponsor: Jonsson Comprehensive Cancer Center
NCT ID: NCT07293585
Sites in California:
  • University of California at Los Angeles — Los Angeles, California
Phase 2 Recruiting Academic/Other

Targeted Treatment for Metastatic Prostate Cancer, The PREDICT Trial

This phase II trial evaluates whether genetic testing in prostate cancer is helpful in deciding which study treatment patients are assigned. Patient cancer tissue samples are obtained from a previous surgery or biopsy procedure and tested …

Sponsor: Alliance for Clinical Trials in Oncology
NCT ID: NCT06632977
Sites in California:
  • UC San Diego Health System - Encinitas — Encinitas, California
  • UCI Health - Chao Family Comprehensive Cancer Center and Ambulatory Care — Irvine, California
  • UC San Diego Moores Cancer Center — La Jolla, California
  • UC Irvine Health/Chao Family Comprehensive Cancer Center — Orange, California
  • University of California Davis Comprehensive Cancer Center — Sacramento, California
Phase 1, Phase 2 Recruiting Industry

The Evaluation of PC14586 in Patients With Advanced Solid Tumors Harboring a TP53 Y220C Mutation (PYNNACLE)

The Phase 2 monotherapy portion of this study is currently enrolling and will evaluate the efficacy and safety of PC14586 (INN rezatapopt) in participants with locally advanced or metastatic solid tumors harboring a TP53 Y220C mutation. Th…

Sponsor: PMV Pharmaceuticals, Inc
NCT ID: NCT04585750
Sites in California:
  • University of California Irvine Chao Family Comprehensive Cancer Center — Irvine, California
  • University of San Diego Moores Cancer Center — La Jolla, California
  • UCLA Jonsson Comprehensive Cancer Center — Los Angeles, California
  • USC Norris Comprehensive Cancer Center — Los Angeles, California
Phase 2 Recruiting Industry

Metastatic Castrate-Resistant Prostate Cancer Subjects Treated With PROVENGE® + One Infusion of Sipuleucel-T

A multicenter, open-label, prospective study to investigate immune boost response changes in patients with metastatic castrate-resistant prostate cancer (mCRPC).

Sponsor: Dendreon
NCT ID: NCT06134232
Sites in California:
  • City of Hope - National Medical Center — Duarte, California
  • Urology Associates of Central California Medical Group — Fresno, California
  • Unio Health Partners - Genesis Research, LLC — San Diego, California
Phase 1, Phase 2 Recruiting Industry

A Phase 1/2a Study of DB-1311/BNT324 in Advanced/Metastatic Solid Tumors

This is a dose-escalation and dose-expansion Phase 1/2a trial to evaluate the safety and tolerability of DB-1311/BNT324 in subjects with advanced solid tumors.

Sponsor: DualityBio Inc.
NCT ID: NCT05914116
Sites in California:
  • Research Site 125 — Los Angeles, California
  • Research Site 133 — Los Angeles, California
  • Research Site 103 — Los Angeles, California
  • Research Site 128 — Santa Monica, California

Showing 25 of 103 trials with sites in California. See all prostate cancer trials →

Medical disclaimer: This page aggregates public ClinicalTrials.gov data. It is not medical advice. Always confirm eligibility and enrollment details with the trial site or your oncologist.

Source: ClinicalTrials.gov API v2 · Last checked: 2026-05-25