Clinical trials · California
Cancer clinical trials in California
We’re tracking 1,320 recruiting cancer studies with a site in California — including Early Phase 1, Phase 1, Phase 2, Phase 3 and Phase 4 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT06134232RecruitingPhase 2
Extra sipuleucel-T after Provenge for prostate cancer
This trial tests whether adding one extra infusion of sipuleucel-T (the same drug as Provenge) after the standard three doses can help men with advanced prostate cancer that no longer responds to hormone therapy. It is for men who have already finished their three Provenge infusions and have mild or no symptoms.
Duarte, CaliforniaAges 18 years+ - NCT06586515RecruitingPhase 1
Testing a new drug for cancers with KRAS G12D mutation
This trial tests a new pill (LY3962673) for people whose cancer has a specific DNA change called KRAS G12D. The drug aims to block the faulty protein that helps the cancer grow, and the study will look at safety and whether the tumor shrinks.
Santa Monica, CaliforniaAges 18 years+ - NCT06598306RecruitingPhase 1
Tarlatamab injection for advanced small cell lung cancer
This trial tests a new drug called tarlatamab, given as an injection under the skin (like a shot), for people with advanced small cell lung cancer that has worsened after chemotherapy. The goal is to see if this treatment can help shrink or slow down the cancer.
Los Angeles, CaliforniaAges 18 years+ - NCT06568939RecruitingPhase 2
Study of telisotuzumab vedotin for non-squamous lung cancer
This trial tests a drug called telisotuzumab vedotin (ABBV-399) given through a vein to people with a specific type of advanced lung cancer (non-squamous non-small cell lung cancer) that has a high level of a protein called c-Met. The study aims to see how the drug affects the body and helps control the cancer.
Los Angeles, CaliforniaAges 18 years+ - NCT06561386RecruitingPhase 3
Testing a new drug combo for advanced lung cancer
This trial is comparing a new combination of two immunotherapy drugs (nivolumab and relatlimab) plus chemotherapy against the standard immunotherapy (pembrolizumab) plus chemotherapy for people with advanced non-squamous non-small cell lung cancer that has a certain protein (PD-L1) on at least 1% of its cells. The goal is to see if the new combination works better.
Santa Monica, CaliforniaAges 18 years+ - NCT06549465RecruitingPhase 2
Ac-225 rosopatamab for PSMA-positive castration-resistant prostate cancer
This trial tests a radioactive drug (Ac-225 rosopatamab tetraxetan) that targets a protein called PSMA on prostate cancer cells. It is for patients whose cancer has stopped responding to hormone therapy and has spread to other parts of the body.
San Diego, CaliforniaAges 18 years+ - NCT06562543RecruitingPhase 4
Fruquintinib for advanced colorectal cancer in minority populations
This trial tests a medication called fruquintinib (an oral pill) for people with advanced colorectal cancer that has not responded to prior treatments. It is specifically looking for participants who identify as Black or African American and/or Hispanic or Latino to help understand how the drug works in these groups.
Whittier, 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+ - NCT06535607RecruitingPhase 2
Study of volrustomig for advanced solid tumors
This trial tests a new drug called volrustomig, alone or with other cancer treatments, for people with advanced or metastatic solid tumors. It aims to see if the drug can help shrink or control the cancer.
Los Angeles, CaliforniaAges 18 years+ - NCT06533644RecruitingPhase 2
SYNC-T therapy study for advanced prostate cancer
This trial tests a new treatment called SYNC-T Therapy (SV-102) for men with metastatic castration-resistant prostate cancer that has progressed after other treatments. The therapy is given directly into a tumor to help your immune system fight the cancer.
Sacramento, CaliforniaAges 18 years+ - NCT06549088Enrolling by invitation
Lung cancer tissue imaging study using light
This study tests a new imaging technique that uses light to look at lung tissue removed during surgery. It may help doctors see cancer details more clearly without damaging the tissue.
Orange, CaliforniaAges 18 years+ - NCT06524544RecruitingPhase 3
Pembrolizumab and sacituzumab govitecan for advanced bladder cancer
This trial tests a new drug combination (pembrolizumab and sacituzumab govitecan) against standard treatment for advanced bladder cancer that has spread or cannot be removed by surgery. It's for people who have already tried an immunotherapy drug like pembrolizumab and another drug called enfortumab vedotin.
Irvine, CaliforniaAges 18 years+ - NCT06526299RecruitingPhase 2
Higher dose of targeted radiation for prostate cancer with low PSMA levels
This trial tests a higher dose of a radioactive drug (177Lu-PSMA-617) for men whose prostate cancer has spread and does not produce much of a protein called PSMA on scans. The goal is to see if a stronger dose can work better than the standard dose.
Sylmar, CaliforniaAges 18 years+ - NCT06528990RecruitingPhase 2
Telehealth help for ostomy self-care
This study tests a telehealth program to help you manage your ostomy after surgery. If you have bladder or colorectal cancer and are getting an ostomy, you and a caregiver can learn skills to handle your new stoma from home using video calls.
Duarte, CaliforniaAges 18 years+ - NCT06531499RecruitingPhase 1
Study of a radioactive drug for advanced prostate cancer
This trial tests an extended treatment with a radioactive drug (177Lu-PSMA-617) to see how the body handles it, how safe it is, and how well it works. It is for men with metastatic castration-resistant prostate cancer who have not had chemotherapy yet.
Los Angeles, CaliforniaAges 18–100 - NCT06527157Recruiting
Study on reproductive cancers in women
This study is looking at women who have unusual bleeding or bleeding after menopause to find better ways to diagnose reproductive cancers like endometrial cancer. If you are 45 or older and still have your uterus, you may be able to help.
San Carlos, CaliforniaAges 45–100 - NCT06500481RecruitingPhase 3
Proton vs standard radiation for cancer spread to brain/spine lining
This trial compares a newer type of radiation (proton therapy) to standard radiation for people whose breast or lung cancer has spread to the lining of the brain and spinal cord. It aims to see if proton therapy can better control the disease while causing fewer side effects.
San Diego, CaliforniaAges 18 years+ - NCT06511037RecruitingEarly Phase 1
Dye injection to help see cancer during belly surgery
This study tests a special dye, called pafolacianine, that is injected before surgery to help surgeons see hidden cancer spots in the belly during the operation. The goal is to see if using this dye improves how completely the cancer is removed in people with gastrointestinal cancer that has spread to the belly lining.
Orange, CaliforniaAges 18 years+ - NCT06503614RecruitingPhase 2
Durvalumab plus monalizumab for non-invasive bladder cancer
This study tests two immunotherapy drugs (durvalumab and monalizumab) in people with a type of bladder cancer that hasn't spread into the deep muscle layer. The goal is to see if this combination can help control the cancer and prevent it from coming back, possibly avoiding the need for bladder removal.
San Francisco, CaliforniaAges 18 years+ - NCT06481592RecruitingPhase 2
Study of lifileucel for advanced endometrial cancer
This trial tests an experimental cell therapy called lifileucel, made from your own immune cells, for advanced endometrial cancer that has progressed after standard treatments. It aims to shrink tumors and slow the disease.
Los Angeles, CaliforniaAges 18–70 - NCT06492616RecruitingPhase 3
Elacestrant versus standard hormone therapy for early breast cancer
This trial compares a new medicine, elacestrant, to the usual hormone therapy for people with early-stage breast cancer that is hormone receptor-positive and HER2-negative, and who have a high chance of it coming back. The goal is to see if elacestrant works better at preventing the cancer from returning.
Bakersfield, CaliforniaAges 18 years+ - NCT06486454Recruiting
Liver tumor treatment with sound waves
This trial tests a new device that uses sound waves to destroy liver tumors without cutting or needles. It may be an option if you have a liver tumor that can be partly or fully targeted by this technique.
Santa Monica, CaliforniaAges 22 years+ - NCT06475989RecruitingPhase 3
Targeted therapy vs. chemotherapy for thyroid cancer
This trial compares a targeted therapy pill combination (dabrafenib and trametinib) with cabozantinib or chemotherapy for people with a specific type of advanced thyroid cancer (differentiated thyroid cancer) that has a BRAF V600E mutation. It aims to find which treatment works better after previous treatments have stopped working.
Napa, CaliforniaAges 18 years+ - NCT06463028RecruitingPhase 2
Targeted pills plus chemo for advanced endometrial cancer
This trial tests a combination of two targeted pills (sapanisertib and serabelisib) with standard chemo (paclitaxel) for endometrial cancer that has come back or spread. A substudy also looks at combining these drugs with a special diet that lowers insulin levels.
San Francisco, CaliforniaAges 18 years+
Cancer trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting cancer studies listed above.
- UC San Diego Moores Cancer Center · 4 studies
- University of California, San Francisco · 4 studies
- City of Hope · 3 studies
- University of California, Irvine · 3 studies
- Hoag Memorial Hospital Presbyterian · 2 studies
- Stanford University · 2 studies
- Sutter Health · 2 studies
- UC Irvine Health/Chao Family Comprehensive Cancer Center · 2 studies
What taking part in a 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.
Cancer trials in other states
Common questions
- Are there cancer clinical trials in California?
- Yes. We're currently tracking 1,320 recruiting 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 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 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 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.