CancerDrs

Prostate Cancer clinical trials in California

99 actively recruiting prostate cancer trials at 91 sites across California.

Data from ClinicalTrials.gov · last refreshed

Payments from drug makers to the doctors running these trials

For 1 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 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:
  • Kaiser Permanente-Anaheim — Anaheim, California
  • Mission Hope Medical Oncology - Arroyo Grande — Arroyo Grande, California
  • Kaiser Permanente-Baldwin Park — Baldwin Park, California
  • Kaiser Permanente-Bellflower — Bellflower, California
  • Tower Cancer Research Foundation — Beverly Hills, 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 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 Industry

This Study Will Explore Whether a Combination of the Investigational Drug Mevrometostat (PF-06821497) and Enzalutamide Will Work Better Than Taking Enzalutamide Alone in Participants With mCSPC Who Are ARPI naïve.

This study will explore whether a combination of the investigational drug mevrometostat (PF-06821497) and enzalutamide will work better than taking enzalutamide alone in participants with mCSPC who are ARPI naïve and have not yet received …

Sponsor: Pfizer
NCT ID: NCT07028853
Sites in California:
  • UCLA Hematology/Oncology - Alhambra — Alhambra, California
  • UCLA Hematology/Oncology - Atascadero — Atascadero, California
  • Cedars-Sinai Cancer Beverly Hills (drug treatment and dispensing location) — Beverly Hills, California
  • Cedars-Sinai Cancer Beverly Hills — Beverly Hills, California
  • UCLA Hematology/Oncology - Beverly Hills — Beverly Hills, 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 daily corticosteroids compared to alternative abiraterone acetate or enzalutamide in participants with Metastatic Castration-resistant Prostate Cancer (mCRP…

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

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

Copper Cu 64 PSMA I&T PET Imaging in Men With Newly Diagnosed Prostate Cancer

This is a prospective, open-label Phase 3 study to evaluate copper Cu 64 PSMA I\&T injection for PET/CT imaging in patients with newly diagnosed unfavorable intermediate high-risk, high-risk or very high-risk prostate cancer.

Sponsor: Curium US LLC
NCT ID: NCT06235151
Sites in California:
  • Providence Medical Foundation — Fullerton, California
  • Tower Urology — Los Angeles, California
  • VA Greater Los Angeles Healthcare System — Los Angeles, California
  • Hoag Memorial Hospital Presbyterian — Newport Beach, California
  • University of California, Irvine — Orange, 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

An Open-label Study Comparing Lutetium (177Lu) Vipivotide Tetraxetan Versus Observation in PSMA Positive OMPC.

The purpose of this study is to evaluate the efficacy and safety of lutetium (177Lu) vipivotide tetraxetan (AAA617) in participants with oligometastatic prostate cancer (OMPC) progressing after definitive therapy to their primary tumor. Th…

Sponsor: Novartis Pharmaceuticals
NCT ID: NCT05939414
Sites in California:
  • VA Greater LA Healthcare System — Los Angeles, California
  • VA Palo Alto Health Care System — Palo Alto, California
  • Stanford University — Palo Alto, California
  • UCSF — San Francisco, California
Phase 2, Phase 3 Recruiting Industry

Open-label Study Comparing AAA817 Versus Standard of Care in the Treatment of Previously Treated PSMA-positive mCRPC Adults Who Have Disease Progressed on or After [177Lu]Lu-PSMA Targeted Therapy

This is a Phase II/III study. Patient population is adult participants with PSMA-positive mCRPC who had treatments with androgen receptor pathway inhibitor (ARPI) and taxane-based chemotherapy and progressed on or after \[177Lu\]Lu-PSMA ta…

Sponsor: Novartis Pharmaceuticals
NCT ID: NCT06780670
Sites in California:
  • VA Greater LA Healthcare System — Los Angeles, California
  • VA Palo Alto Health Care System — Palo Alto, California
  • Stanford University Medical Center — Palo Alto, California
  • Sansum Clinic — Santa Barbara, California
  • Saint Johns Cancer Institute — Santa Monica, California
Phase 3 Recruiting Industry

Positron Emission Tomography Using 64Cu-SAR-bisPSMA in Participants With High-risk Prostate Cancer Prior to Radical Prostatectomy

The aim for this study is to assess the diagnostic performance of 64Cu-SAR-bisPSMA PET to detect regional nodal metastases.

Sponsor: Clarity Pharmaceuticals Ltd
NCT ID: NCT06056830
Sites in California:
  • Urology Group of Southern California — Los Angeles, California
  • Greater Los Angeles VA Medical Center — Los Angeles, California
  • UC Irvine Health — Orange, California
  • Stanford University Medical Center — Stanford, California
Phase 3 Recruiting Industry

AZD2265 Compared With Standard of Care in PSMA-positive Metastatic Castration-resistant Prostate Cancer (VECTRA-01)

The intention of the study is to demonstrate superiority of AZD2265 relative to standard of care treatments by assessment of radiographic progression-free survival (rPFS) and overall survival (OS) in participants with mCRPC.

Sponsor: AstraZeneca
NCT ID: NCT07611110
Sites in California:
  • Research Site — Duarte, California
  • Research Site — Irvine, California
  • Research Site — Newport Beach, California
  • Research Site — San Francisco, California
Phase 3 Recruiting Industry

PSMA PET Combined With MRI for the Detection of PCa

This is an open label, longitudinal Phase 3 study of prostate specific membrane antigen (PSMA) positron emission tomography (PET) combined with magnetic resonance imaging (MRI) compared to standard of care (SOC) for the detection of prosta…

Sponsor: Telix Pharmaceuticals (Innovations) Pty Limited
NCT ID: NCT07052214
Sites in California:
  • University of California Los Angeles — Los Angeles, California
  • University of California San Francisco — San Francisco, California
Phase 3 Recruiting Academic/Other

Screening for Prostate Cancer Using High Resolution Micro-ultrasound Versus Multiparametric Magnetic Resonance Imaging.

The purpose of this study is to compare whether the FDA and Health Canada approved microUS is as effective as the currently used option (MRI) for imaging the prostate gland. Participants will be randomized into two groups to compare the im…

Sponsor: University of Alberta
NCT ID: NCT06626022
Sites in California:
  • University of California, Los Angeles (UCLA) — Los Angeles, 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 NIH

Testing the Effectiveness of Two Immunotherapy Drugs (Nivolumab and Ipilimumab) With One Anti-cancer Targeted Drug (Cabozantinib) for Rare Genitourinary Tumors

This phase II trial studies how well cabozantinib works in combination with nivolumab and ipilimumab in treating patients with rare genitourinary (GU) tumors that has spread from where it first started (primary site) to other places in the…

Sponsor: National Cancer Institute (NCI)
NCT ID: NCT03866382
Sites in California:
  • Mission Hope Medical Oncology - Arroyo Grande — Arroyo Grande, California
  • PCR Oncology — Arroyo Grande, California
  • Providence Saint Joseph Medical Center/Disney Family Cancer Center — Burbank, California
  • Community Cancer Institute — Clovis, California
  • University Oncology Associates — Clovis, California
Phase 2 Recruiting Network

Carboplatin Chemotherapy Before Surgery for People With High-Risk Prostate Cancer and an Inherited BRCA1 or BRCA2 Gene Mutation

This phase II trial tests how well carboplatin before surgery works in treating patients with high-risk prostate cancer and an inherited BRCA1 or BRCA2 gene mutation. Carboplatin is in a class of medications known as platinum-containing co…

Sponsor: SWOG Cancer Research Network
NCT ID: NCT05806515
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 Comprehensive Cancer Center — Duarte, 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:
  • Enloe Medical Center — Chico, 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
Phase 2 Recruiting Industry

A Study for Subjects With Prostate Cancer Who Previously Participated in an Enzalutamide Clinical Study

The purpose of this study is to collect long term safety data in subjects who are continuing to derive clinical benefit from treatment with Enzalutamide from the subjects participation in an enzalutamide clinical study sponsored by Astella…

Sponsor: Astellas Pharma Global Development, Inc.
NCT ID: NCT02960022
Sites in California:
  • Site US10040 — Los Angeles, California
  • Site US10009 — Los Angeles, California
  • Site US10067 — Orange, California
  • Site US10008 — San Bernardino, California
  • Site US10042 — San Diego, California
Phase 1, Phase 2 Recruiting Industry

FOG-001 in Locally Advanced or Metastatic Solid Tumors

The goal of this clinical trial is to determine if FOG-001 is safe and effective in participants with locally advanced or metastatic solid tumors or in participants with familial adenomatous polyposis (FAP).

Sponsor: Parabilis Medicines, Inc.
NCT ID: NCT05919264
Sites in California:
  • University of California, Los Angeles (UCLA) — Los Angeles, California
  • Stanford Cancer Institute, Stanford University — Palo Alto, California
  • University of California San Francisco, Helen Diller Family Comprehensive Cancer Center — San Francisco, California
  • Sarcoma Oncology Center — Santa Monica, 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 2 Recruiting Industry

Study of PF-07248144 in Advanced or Metastatic Solid Tumors

This is an open-label, multi center study to evaluate safety, tolerability, pharmacokinetics (PK), and pharmacodynamics (PD) of PF-07248144 and early signs of clinical efficacy of PF-07248144 as a single agent and in combination with other…

Sponsor: Pfizer
NCT ID: NCT04606446
Sites in California:
  • Cedars Sinai Medical Center — Los Angeles, California
  • Cedars-Sinai Cancer at Cedars-Sinai Medical Center — Los Angeles, California
  • UCSF Medical Center at Mission Bay — San Francisco, California
Phase 2 Recruiting Federal

Carboplatin or Olaparib for BRcA Deficient Prostate Cancer

This is an unblinded, randomized clinical study comparing the efficacy of DNA damaging chemotherapy using carboplatin, to standard of care therapy for patients who have metastatic castrate resistant prostate cancer. This trial will use ola…

Sponsor: VA Office of Research and Development
NCT ID: NCT04038502
Sites in California:
  • VA Greater Los Angeles Healthcare System, West Los Angeles, CA — West Los Angeles, California
Phase 1, Phase 2 Recruiting Industry

A Phase 1b/2a Study of Pocenbrodib as Monotherapy and in Combination With Darolutamide in Participants With mCRPC

This is a dose-finding study to assess the safety and preliminary antitumor activity of Pocenbrodib alone or with darolutamide in patients with metastatic castration-resistant prostate cancer (mCRPC)

Sponsor: Pathos AI, Inc.
NCT ID: NCT06785636
Sites in California:
  • MemorialCare Orange Coast Medical Center — Fountain Valley, California
  • Cancer and Blood Research Center — Los Alamitos, California

Showing 25 of 99 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: 2026-08-10