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 Phase 1, Phase 1/Phase 2, Phase 2, Phase 2/Phase 3 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT06682728RecruitingPhase 2
Treating high-risk bladder cancer after surgery
This trial tests a combination of two drugs (sacituzumab govitecan and nivolumab) given after surgery to prevent the return of muscle-invasive bladder cancer. It is for patients whose cancer has a high chance of coming back despite surgery.
Orange, CaliforniaAges 18 years+ - NCT07202247RecruitingPhase 2
Improving heart health in prostate cancer patients on hormone therapy
This study tests whether combining a time-restricted eating plan, a heart-healthy diet, and a weight-loss medication (GLP-1 receptor agonist) can help improve heart health and weight in men with prostate cancer who are receiving hormone therapy. It aims to reduce the risk of heart problems caused by hormone treatment.
Duarte, CaliforniaAges 30–79 - NCT04752722RecruitingPhase 1/Phase 2
EG-70 for bladder cancer patients after failed BCG therapy
This early-phase study tests EG-70 in people with high-risk non-muscle-invasive bladder cancer who did not fully respond to BCG or were not treated enough with BCG. It may help the bladder lining and immune system fight the cancer when standard options are limited.
Irvine, CaliforniaAges 18 years+ - NCT05600686RecruitingPhase 2
New treatment plan for high-risk aggressive lymphoma
This Phase 2 study tests a treatment sequence for people with high-risk diffuse large B-cell lymphoma (DLBCL) that includes loncastuximab plus rituximab, then DA-EPOCH-R. It aims to improve responses in patients whose lymphoma has specific high-risk features.
San Diego, CaliforniaAges 18 years+ - NCT07042438RecruitingPhase 2
Fecal transplant to improve CAR T therapy for lymphoma
This study tests whether a fecal transplant (transferring healthy gut bacteria) can improve outcomes for people with certain lymphomas who have taken strong antibiotics and are about to get CAR T-cell therapy (Yescarta). The goal is to see if rebuilding gut bacteria helps the treatment work better.
Duarte, CaliforniaAges 18 years+ - NCT04269902RecruitingPhase 3
Early treatment check for high-risk CLL/SLL
This Phase 3 trial studies an early treatment approach for people with high-risk CLL or SLL who have not yet needed standard therapy. It aims to see if treating earlier can improve outcomes while keeping side effects manageable.
Anaheim, CaliforniaAges 18 years+ - NCT05861050RecruitingPhase 1/Phase 2
Study of 4-drug treatment for newly diagnosed high-risk mantle cell lymphoma
This trial tests a combination of medicines to treat newly diagnosed high-risk mantle cell lymphoma (MCL). It may help shrink the lymphoma and improve outcomes, especially for people whose disease has higher-risk features.
Duarte, CaliforniaAges 18–80 - NCT04628767RecruitingPhase 2/Phase 3
Durvalumab plus chemo before surgery for upper tract cancer
This trial tests whether adding an immunotherapy drug (durvalumab) to chemotherapy before surgery can improve outcomes for people with high-grade upper tract urothelial cancer. It compares different treatment approaches based on whether a patient can receive cisplatin chemotherapy.
Auburn, CaliforniaAges 18 years+ - NCT06545955RecruitingPhase 3
Gene therapy study for high-grade bladder cancer not responding to BCG
This trial tests a gene therapy called nadofaragene firadenovec, given directly into the bladder, either alone or with chemo or immunotherapy. It's for people with high-grade bladder cancer that hasn't gone away after BCG treatment.
Los Angeles, CaliforniaAges 18 years+ - NCT06445114RecruitingPhase 2
Blood-Guided Chemoradiation for HPV-Positive Throat Cancer
This study tests whether a blood test that looks for circulating HPV DNA (ctDNA) can help doctors decide if you need chemotherapy after surgery for HPV-positive throat cancer. After you have surgery to remove the cancer, you receive radiation (possibly with chemotherapy) — the results of the blood test guide whether or not to add chemo.
Beverly Hills, CaliforniaAges 18 years+ - NCT06015880RecruitingPhase 1
Combination drug therapy for relapsed or resistant large B-cell lymphoma
This trial tests a combination of three drugs (mosunetuzumab, polatuzumab vedotin, and lenalidomide) for people with diffuse large B-cell lymphoma (a type of blood cancer) that has come back or not responded to previous treatment. The goal is to see if this combination is safe and effective.
Duarte, CaliforniaAges 18 years+
Where these studies are running in California
Institutions with a site for the recruiting high risk prostate cancer studies listed above.
- City of Hope Comprehensive Cancer Center · 6 studies
- University of California Davis Comprehensive Cancer Center · 3 studies
- University of California, Irvine Medical Center / UC Irvine Health · 3 studies
- Stanford University · 2 studies
- UC San Diego Moores Cancer Center · 2 studies
- Alta Bates Summit Medical Center
- American Institute of Research
- California Pacific Medical Center
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.