Clinical trials · California
High Risk Prostate Cancer clinical trials in California
We’re tracking 59 recruiting high risk prostate cancer studies with a site in California — including Early Phase 1, Phase 1, Phase 1/Phase 2, Phase 2 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT07054346RecruitingPhase 1
Comparing two radiation drugs for high-risk prostate cancer before surgery
This trial tests two radioactive drugs (Lu-177 and Ac-225 PSMA-617) given before prostate removal surgery in men with high-risk prostate cancer that hasn't spread far. The goal is to see which drug works better at targeting cancer cells.
San Francisco, CaliforniaAges 18 years+ - NCT07276438Recruiting
Image-guided radiation therapy for localized prostate cancer
This trial tests a precise radiation technique that adapts to your body's daily changes. It may offer better outcomes for men with prostate cancer that hasn't spread outside the pelvic area.
Los Angeles, CaliforniaAges 18 years+ - NCT02016248Recruiting
Radiation “boost” for higher-risk prostate cancer
This trial studies whether adding a stronger “boost” dose of targeted radiation (SBRT) can better control higher-risk prostate cancer. It may help by increasing radiation coverage to the prostate while trying to limit treatment to surrounding areas.
Long Beach, CaliforniaAges 18 years+ - NCT02526368RecruitingEarly Phase 1
Scan your prostate with special MRI using pyruvate to find high-grade cancer
This trial tests whether a specialized MRI scan using a pyruvate tracer can better detect high-grade (more aggressive) prostate cancer. It may help doctors find cancer more accurately and guide treatment decisions or targeted follow-up.
San Francisco, CaliforniaAges 18 years+ - NCT07223385RecruitingPhase 2
Heart health check for prostate cancer patients on ARPI therapy
This trial is for men with advanced prostate cancer who are taking ARPI therapy. It offers a special heart health consultation to help manage the increased heart risk that can come with these powerful cancer treatments.
Los Angeles, CaliforniaAges 45 years+ - NCT06267729RecruitingPhase 1/Phase 2
A new cell therapy for advanced prostate cancer
This trial tests a new cell therapy (AZD0754) for metastatic prostate cancer that has stopped responding to standard hormone therapy and chemotherapy. It’s looking for people whose cancer has gotten worse despite prior treatments, and who are still in fairly good health.
Duarte, CaliforniaAges 18–130 - NCT06582017RecruitingPhase 1
Study of QXL138AM for advanced solid tumors and multiple myeloma
This trial tests an investigational drug called QXL138AM for people with advanced solid tumors or multiple myeloma that has not responded to standard treatments. The goal is to see if the drug is safe and effective.
Los Angeles, CaliforniaAges 18 years+ - NCT05534646RecruitingPhase 2
Apalutamide plus a cancer antibody for spreading prostate cancer
This Phase 2 study tests apalutamide combined with a targeted antibody (carotuximab) for prostate cancer that is still growing despite hormone treatment. It may help slow tumor growth by blocking cancer signals in different ways.
Los Angeles, CaliforniaAges 18 years+ - NCT06592924RecruitingPhase 3
Adding chemo to hormone therapy for prostate cancer with slow PSA drop
This trial tests if adding docetaxel chemotherapy helps men whose PSA hasn't dropped enough after at least 6 months of standard hormone therapy (ADT) plus an ARPI pill (like abiraterone or enzalutamide) for metastatic prostate cancer that still responds to hormones.
Anaheim, CaliforniaAges 18 years+ - NCT07077239Recruiting
Adaptive radiation after prostate surgery to lower side effects
This trial tests a precise, short-course radiation treatment (stereotactic body radiotherapy) after prostate removal surgery that adapts to your body each day to reduce side effects. It is for people whose prostate cancer has high-risk features or a rising PSA after surgery.
Los Angeles, CaliforniaAges 18 years+ - NCT02960022RecruitingPhase 2
Enzalutamide continuation study for men with prostate cancer
This Phase 2 study looks at whether continuing enzalutamide, the same prostate cancer pill you’re already taking (or about to restart), can keep helping. It’s for people who previously joined an enzalutamide study and are doing well enough to stay on the same plan.
Los Angeles, CaliforniaAges 18 years+ - NCT04969315RecruitingPhase 1/Phase 2
Drug TT-10 and TT-4 for advanced solid tumors
This early-phase trial tests two investigational drugs—TT-10 and TT-4—alone and together in people with advanced solid cancers. The study is designed to find safe doses and see if the treatment can shrink tumors or slow cancer growth.
Los Angeles, CaliforniaAges 18 years+ - NCT05983432RecruitingPhase 1
Study of BL-B01D1 for advanced lung and other solid tumors
This trial tests an experimental drug called BL-B01D1 for people with several types of advanced solid tumors, especially non-small cell lung cancer and breast cancer. It's designed for those whose cancer has continued to grow after standard treatments.
Orange, CaliforniaAges 18 years+ - NCT06235697RecruitingPhase 3
Hormone therapy with or without lymph node radiation for prostate cancer
This trial tests combining hormone therapy with different types of radiation (including high-dose external beam and brachytherapy) for men with prostate cancer that has a higher chance of coming back. It aims to see if adding radiation to the lymph nodes helps control the cancer better.
South San Francisco, CaliforniaAges 18 years+ - NCT07052214RecruitingPhase 3
PSMA PET plus MRI to find prostate cancer
This trial tests if combining a PSMA PET scan with an MRI can better detect clinically significant prostate cancer than MRI alone. It may help men who have not had a prostate biopsy before and have certain risk factors.
Los Angeles, CaliforniaAges 18 years+ - NCT07364071RecruitingPhase 2
Hormone therapy and targeted radiation for high-risk prostate cancer
This trial tests whether combining standard hormone therapy and radiation with a special targeted radiation (PSMA-targeted radiotherapy) is safe and effective for men with high-risk prostate cancer that hasn't spread outside the pelvis.
La Jolla, CaliforniaAges 18 years+ - NCT04868604RecruitingPhase 1/Phase 2
Copper PSMA scan and treatment for prostate cancer in men on low testosterone
This trial tests a PSMA-targeted copper medicine used after a special PSMA PET/CT scan to find and treat prostate cancer that has spread. It’s for men whose testosterone is already very low and whose cancer is growing despite hormone-blocking medicines like enzalutamide or abiraterone.
Stanford, CaliforniaAges 18 years+ - NCT07293585RecruitingPhase 3
Precision radiation to protect erectile function in prostate cancer
This trial tests a new radiation technique to better protect erectile function during prostate cancer treatment. It uses advanced imaging to precisely target the tumor while reducing harm to nearby structures.
Los Angeles, CaliforniaAges 18 years+ - NCT06510374RecruitingPhase 3
Gene therapy vs. observation for intermediate risk bladder cancer
This trial tests a new gene therapy called nadofaragene firadenovec versus just watching and waiting (observation) for people with a specific type of bladder cancer that hasn't grown into the muscle. The goal is to see if the gene therapy can help keep the cancer from coming back.
Bakersfield, CaliforniaAges 18 years+ - NCT06919965RecruitingPhase 3
TAR-210 vs. standard bladder chemo for high-risk bladder cancer
This trial compares a new drug called TAR-210, given directly into the bladder, to standard chemotherapy for people with a specific type of high-risk bladder cancer that has not invaded muscle. It tests if TAR-210 can be more effective with fewer side effects.
Los Angeles, CaliforniaAges 18 years+ - NCT06422455Recruiting
Genetic testing for underserved cancer patients
This study offers free genetic testing to cancer patients and their healthcare providers. It aims to help people who may not have easy access to genetic testing understand their cancer risk.
Los Angeles, CaliforniaAges 18 years+ - NCT03866382RecruitingPhase 2
Immunotherapy plus a targeted drug for rare genitourinary tumors
This Phase 2 study tests whether nivolumab and ipilimumab (immunotherapy drugs) plus cabozantinib (a targeted anti-cancer drug) can shrink or control rare cancers of the urinary/reproductive system that have spread. It may help by boosting the immune system and blocking cancer growth signals at the same time.
Arroyo Grande, CaliforniaAges 18 years+ - NCT06942104RecruitingPhase 1
New imaging agent for advanced solid tumors
This trial tests a new imaging agent (18F-TRX) to see if it can better detect cancer spread in people with advanced solid tumors. It is designed for patients with specific cancers like high-grade brain tumors, advanced kidney cancer, or prostate cancer that has stopped responding to hormone therapy.
San Francisco, CaliforniaAges 18 years+ - NCT05107674RecruitingPhase 1
Early drug study for advanced cancers that have limited options
This Phase 1 study tests NX-1607 in adults with advanced cancers that are hard to treat with standard care. It focuses on safety and early signs of how well the drug may work in specific cancer types.
Los Angeles, CaliforniaAges 18 years+
Where these studies are running in California
Institutions with a site for the recruiting high risk prostate cancer studies listed above.
- University of California, San Francisco · 5 studies
- Cedars-Sinai Medical Center · 4 studies
- City of Hope Comprehensive Cancer Center · 4 studies
- University of California, Los Angeles (UCLA) · 4 studies
- USC / Norris Comprehensive Cancer Center · 4 studies
- University of California, Irvine Medical Center / UC Irvine Health · 3 studies
- Los Angeles General Medical Center · 2 studies
- Mission Hope Medical Oncology - Arroyo Grande · 2 studies
What taking part in a high risk prostate cancer study involves
A screening visit first
Before anything else, the study team checks whether you fit — usually a visit with some tests. You can stop at any point, and screening is typically free.
Care at a nearby site
Study visits happen at a clinic or hospital taking part. Many studies cover the cost of the study treatment and related visits, and some reimburse travel.
You stay in control
Taking part is voluntary and you can leave a study at any time, for any reason, without affecting your regular care.
The team decides eligibility
Our fit check is a helpful first read, not a decision. The study team makes the final call after reviewing your health history.
Common questions
- Are there high risk prostate cancer clinical trials in California?
- Yes. We're currently tracking 59 recruiting high risk prostate cancer studies with a site in California, each rewritten in plain language so you can see what it's testing and who it's for.
- How do I find out if I qualify for a high risk prostate cancer study in California?
- Each study lists its eligibility rules — age, diagnosis, prior treatments. On every trial page we explain these in plain language and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Do I have to live in California to take part?
- Not necessarily. These studies have a site in California, but eligibility is about your health, not your address — some people travel to take part, and a few studies reimburse travel. The study team can tell you what's required.
- Does it cost anything to join a high risk prostate cancer trial?
- Using Clin2 is always free. Many trials cover the study treatment and related visits; some reimburse travel. The study team explains exactly what's covered before you decide.
Not the right time?
New high risk prostate cancer studies open in California regularly. Set up a health profile and we’ll quietly watch for studies that fit you and email you when one opens.
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.