Clinical trials · California
Prostate Cancer (Adenocarcinoma) clinical trials in California
We’re tracking 122 recruiting prostate cancer (adenocarcinoma) 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
- NCT04945642Recruiting
Radiation combination therapy for intermediate to high-risk prostate cancer
This trial studies a combination of two radiation types—high-dose-rate brachytherapy and stereotactic body radiotherapy—to treat certain intermediate- to high-risk prostate cancers. It may help by aiming radiation closely at the prostate while also targeting the cancer from outside the body.
Los Angeles, CaliforniaAges 18 years+ - NCT04812366RecruitingPhase 2
Genetic test-guided treatment before prostate surgery
This trial tests different drugs before prostate surgery based on a person's genetic profile. It aims to find better treatments for high-risk prostate cancer that hasn't spread yet.
Sacramento, CaliforniaAges 18 years+ - NCT04734730RecruitingPhase 2
Talazoparib plus hormone therapy for metastatic prostate cancer
This trial tests whether talazoparib added to standard hormone therapy (ADT), along with abiraterone, can better control metastatic prostate cancer that hasn’t progressed despite starting hormone treatment. It may help people live longer and delay cancer worsening.
Duarte, CaliforniaAges 18 years+ - NCT04729114RecruitingPhase 1
Safety and dose test of PRL-02 shot for advanced prostate cancer
This Phase 1 study tests how safe PRL-02 depot (an injection) is and finds the best dose for men with advanced prostate cancer. It may help determine a new treatment option for cancers that have spread or are getting worse despite standard care.
Anaheim, CaliforniaAges 18 years+ - NCT04423211RecruitingPhase 3
Surgery-recovered prostate cancer treated with PET-guided radiation
This trial tests whether adding targeted radiation guided by a PET scan (along with hormone therapy) can improve outcomes for prostate cancer that has come back after surgery. The PET scan helps doctors look for spots outside the usual radiation area so treatment can be tailored.
Corona, CaliforniaAges 18 years+ - NCT04221542RecruitingPhase 1
AMG 509 for advanced, hormone-resistant prostate cancer
This trial tests AMG 509, a study drug, in men with metastatic castration-resistant prostate cancer (cancer that keeps growing despite lowering testosterone). It’s for people whose cancer has progressed after certain hormone tablets and possibly chemotherapy, aiming to shrink tumors and control the disease safely.
Fullerton, CaliforniaAges 18 years+ - NCT03933670RecruitingPhase 2
MRI scan with special sugar to monitor prostate cancer on surveillance
This study uses a special MRI scan using “hyperpolarized” labeled pyruvate (a sugar-like substance) to see how prostate cancer may be behaving in people who are on active surveillance. It may help researchers monitor cancer without immediate treatment, by spotting changes earlier.
San Francisco, CaliforniaAges 18 years+ - NCT03821246RecruitingPhase 2
Atezolizumab and other drugs before prostate surgery for high-risk cancer
This Phase 2 trial tests whether giving immunotherapy (atezolizumab) plus another drug before surgery can shrink or control high-risk localized prostate cancer. The goal is to improve outcomes by treating the cancer early, before radical prostatectomy.
San Francisco, CaliforniaAges 18 years+ - NCT03678025RecruitingPhase 3
Standard treatment for metastatic prostate cancer, with or without local treatment
This Phase 3 trial studies whether using the usual medicines for metastatic prostate cancer, plus a definitive local treatment to the prostate, improves outcomes. It may help determine if treating the prostate directly can benefit people whose cancer has not worsened after initial hormone-based treatment.
Antioch, CaliforniaAges 18 years+ - NCT03151629Recruiting
Registry for men with advanced prostate cancer
This study is a worldwide registry that collects health information from men with advanced prostate cancer. It may help researchers better understand disease patterns and outcomes, which can guide future treatments.
Los Angeles, CaliforniaAges 21 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+ - 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.
Fountain Valley, CaliforniaAges 18 years+ - NCT00949819Recruiting
Active surveillance study for localized prostate cancer
This trial studies a “watchful waiting” approach, where doctors closely monitor certain prostate cancers with regular checkups and repeat biopsies. It may help people avoid or delay treatment side effects while watching for signs the cancer needs treatment.
Los Angeles, CaliforniaAges 30–85 - NCT07181161RecruitingPhase 1/Phase 2
Testing a new drug for metastatic prostate cancer
This trial tests an investigational drug (AZD0516) alone or with other treatments in men with prostate cancer that has spread to other parts of the body and is no longer responding to hormone therapy. It aims to see if the drug can help control the cancer.
Los Angeles, CaliforniaAges 18–130 - 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 - NCT06217822RecruitingPhase 1
Testing a new radiation therapy for advanced prostate cancer
This trial tests a new radioactive drug, 225Ac-PSMA-Trillium, that targets prostate cancer cells. It is for people whose advanced prostate cancer has stopped responding to hormone therapy and may have spread.
Duarte, 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+ - NCT06172478RecruitingPhase 2
HER3-DXd for advanced solid tumors after prior treatment
This trial tests a new targeted drug called HER3-DXd for people with several types of advanced solid tumors that have stopped responding to standard treatments. The drug is an antibody-drug conjugate, designed to deliver chemotherapy directly to cancer cells that have a protein called HER3 on their surface.
Duarte, CaliforniaAges 18 years+ - NCT06136650RecruitingPhase 3
Study of a new drug for advanced prostate cancer
This study tests a new oral drug called opevesostat against another standard hormone therapy for men with advanced prostate cancer that has spread and is no longer controlled by a first hormone therapy. It's for men who have not had chemotherapy for this stage and who have not used a PARP inhibitor or chose not to.
Irvine, CaliforniaAges 18 years+ - NCT06879041RecruitingPhase 1
Study of a radioactive drug for advanced prostate cancer
This study tests a new radioactive drug, [225Ac]-AZD2284, for men with prostate cancer that has spread and no longer responds to hormone therapy. The drug is designed to target cancer cells and deliver radiation directly to them, potentially slowing the cancer's growth.
Palo Alto, CaliforniaAges 18 years+ - NCT07287150RecruitingPhase 2
Testing Inavolisib for advanced prostate cancer
This study tests a new targeted therapy called inavolisib for men with advanced, hormone-resistant prostate cancer that has spread. The drug may work by blocking a specific pathway that helps cancer grow. Participants must have already tried one second-generation hormone therapy and have a tumor sample available for testing.
Los Angeles, CaliforniaAges 18 years+ - NCT07213674RecruitingPhase 3
A study of xaluritamig plus abiraterone for prostate cancer
This trial tests a new combination of two drugs (xaluritamig plus abiraterone) for men with a type of advanced prostate cancer that is no longer responding to hormone therapy but has not yet been treated with chemotherapy. The goal is to see if this combination works better than the standard options your doctor might choose.
Duarte, CaliforniaAges 18 years+ - NCT07140900RecruitingPhase 1
Study of xaluritamig combined with hormone therapy for advanced prostate cancer
This trial tests a new drug, xaluritamig, given with standard hormone therapy for men with prostate cancer that has spread to other parts of the body (metastatic) and is still sensitive to hormone therapy. It aims to see if the combination is safe and works better than hormone therapy alone.
San Francisco, CaliforniaAges 18 years+ - NCT06952803RecruitingPhase 3
Testing a new drug for men with BRCA-related prostate cancer
This trial tests whether adding a new drug (saruparib) to standard radiation and hormone therapy can help prevent prostate cancer from spreading to other parts of the body. It is for men with high-risk prostate cancer that has a BRCA gene mutation.
La Jolla, CaliforniaAges 18 years+
Where these studies are running in California
Institutions with a site for the recruiting prostate cancer (adenocarcinoma) studies listed above.
- City of Hope · 6 studies
- University of California, San Francisco · 6 studies
- Research Site · 4 studies
- Pacific Central Coast Health Center-San Luis Obispo · 3 studies
- USC Norris Comprehensive Cancer Center · 3 studies
- Community Cancer Institute · 2 studies
- Kaiser Permanente-Vallejo · 2 studies
- Los Angeles General Medical Center · 2 studies
What taking part in a prostate cancer (adenocarcinoma) 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.
Prostate Cancer (Adenocarcinoma) trials in other states
Common questions
- Are there prostate cancer (adenocarcinoma) clinical trials in California?
- Yes. We're currently tracking 122 recruiting prostate cancer (adenocarcinoma) 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 prostate cancer (adenocarcinoma) 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 prostate cancer (adenocarcinoma) 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 prostate cancer (adenocarcinoma) 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.