Clinical trials · California
Cancer clinical trials in California
We’re tracking 1,320 recruiting 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
- NCT07566156RecruitingPhase 3
New drug combination vs. radiation for bladder cancer preservation
This trial tests whether two drugs (enfortumab vedotin and pembrolizumab) work better than radiation with chemotherapy for muscle-invasive bladder cancer. The goal is to treat your cancer while keeping your bladder instead of removing it.
Santa Barbara, CaliforniaAges 18 years+ - NCT07566052RecruitingPhase 3
Comparing a new KRAS drug to docetaxel for advanced lung cancer
This trial tests a new pill (setidegrasib) against a standard chemo drug (docetaxel) for people with a specific type of advanced lung cancer that has a KRAS G12D mutation. The goal is to see which treatment works better.
Glendale, CaliforniaAges 18 years+ - NCT07558733RecruitingPhase 1/Phase 2
New drug combinations for advanced hormone-receptor positive breast cancer
This trial tests two new drugs (sapanisertib and serabelisib) alone or together to treat advanced breast cancer that is hormone-receptor positive. These drugs target specific pathways that help cancer grow, and the trial will see if they work better than standard treatments.
Los Angeles, CaliforniaAges 18 years+ - NCT07543757Recruiting
Blood test to help decide if a prostate biopsy is needed
This study tests a new blood test (Proclarix) that may help doctors decide if a prostate biopsy is needed. It is for men with a slightly elevated PSA who are already considering a biopsy.
San Diego, CaliforniaAges 40–75 - NCT07546500RecruitingPhase 3
Azenosertib versus chemotherapy for advanced ovarian cancer
This trial tests a new drug called azenosertib against standard chemotherapy for ovarian, fallopian tube, or peritoneal cancer that has come back after platinum-based treatment. The drug targets a specific protein (cyclin E1) found in some tumors and may help stop cancer cells from dividing.
Antioch, CaliforniaAges 18 years+ - NCT07544589RecruitingPhase 1
Study of DISP-10 for advanced gastrointestinal cancers
This trial tests a new treatment called DISP-10 for people with advanced cancers of the digestive system, such as stomach, colon, or bile duct cancers. It aims to see if DISP-10 is safe and effective.
Duarte, CaliforniaAges 18 years+ - NCT07544654RecruitingPhase 3
Study comparing obrixtamig plus chemotherapy for advanced neuroendocrine cancer
This trial tests a new drug called obrixtamig combined with standard chemotherapy for advanced neuroendocrine cancer (a rare type of cancer). You'd receive one cycle of standard chemotherapy first, then be randomly assigned to either continue with the new drug plus chemotherapy or standard chemotherapy alone.
Duarte, CaliforniaAges 18 years+ - NCT07549958RecruitingPhase 1
Gemcitabine with or without Pitavastatin for Advanced Pancreatic Cancer
This study tests whether adding pitavastatin (a cholesterol-lowering drug) to gemcitabine chemotherapy can help treat pancreatic cancer that cannot be surgically removed. You would join if your cancer hasn't grown worse after 2–4 rounds of gemcitabine.
Orange, CaliforniaAges 18 years+ - NCT07539311RecruitingPhase 2
Testing Rina-S for Advanced Gastrointestinal Cancers
This study tests a new drug called Rina-S in people with advanced gastrointestinal cancers (like stomach, colon, or pancreatic cancer) that have spread or cannot be surgically removed. The drug is designed to help slow or stop cancer growth in people whose cancer has gotten worse despite recent treatment.
Los Angeles, CaliforniaAges 18 years+ - NCT07541170RecruitingPhase 3
Testing divarasib after lung cancer surgery and chemotherapy
This study tests whether a drug called divarasib can help prevent lung cancer from coming back after surgery and initial treatment. You would only qualify if your cancer has a specific genetic mutation (KRAS G12C) and you've already had surgery and chemotherapy with immunotherapy.
Clovis, CaliforniaAges 18 years+ - NCT07513376RecruitingPhase 3
Adjuvant vaccine plus immunotherapy for high-risk early lung cancer
This trial tests whether giving a personalized cancer vaccine (Intismeran) with or without an immunotherapy drug (pembrolizumab) after lung cancer surgery can help prevent the cancer from coming back in patients with early-stage, high-risk non-small cell lung cancer.
Sacramento, CaliforniaAges 18 years+ - NCT07512271Recruiting
AI Education Tool for Breast Cancer Patients
This study tests a new computer-based education module created by artificial intelligence to help breast cancer patients understand their diagnosis and treatment options. The goal is to see if this tool helps patients feel more informed and prepared for their care.
San Francisco, CaliforniaAges 18 years+ - NCT07491445RecruitingPhase 3
Daraxonrasib plus chemo for first-line metastatic pancreatic cancer
This trial tests a new targeted therapy (daraxonrasib) combined with standard chemotherapy as the first treatment for people whose pancreatic cancer has spread. The goal is to see if this combination can help shrink or control the cancer better than chemotherapy alone.
Los Angeles, CaliforniaAges 18 years+ - NCT07491497RecruitingPhase 1/Phase 2
TRI-611 for ALK-positive lung cancer
This study tests an experimental pill for people with a specific type of lung cancer. The trial will see if the drug is safe and if it helps shrink tumors.
San Francisco, CaliforniaAges 18 years+ - NCT07484022RecruitingPhase 1
A new drug added to standard treatment for advanced bladder cancer
This trial adds an investigational drug, GB-4362, to a standard combination of two medicines (enfortumab vedotin and pembrolizumab) for advanced bladder cancer. The study wants to see if adding this drug is safe and helps treat the cancer better.
Duarte, CaliforniaAges 18 years+ - NCT07488676RecruitingPhase 1/Phase 2
Study of ASP546C for stomach, pancreas, and other cancers
This trial tests a new drug called ASP546C in people with certain advanced cancers that have a specific marker (CLDN18.2). It aims to see if the drug can shrink or slow tumor growth.
Los Angeles, CaliforniaAges 18 years+ - NCT07473128RecruitingPhase 3
Trilaciclib to prevent low blood cell counts in limited-stage small cell lung cancer
This trial tests whether taking trilaciclib alongside standard chemotherapy can help prevent low blood cell counts (myelosuppression) in people with limited-stage small cell lung cancer. It may help you stay stronger during treatment.
Oakland, CaliforniaAges 18 years+ - NCT02253251Recruiting
Study genes linked to cancer risk and how they may be affected
This study looks at tiny genetic changes (called microRNA binding site mutations) to understand how they relate to cancer risk, prevention, and treatment. If you (or close family members) have had cancer, and you meet the study’s other requirements, your genetic information could help researchers learn how to better predict and manage cancer.
Los Angeles, CaliforniaAges 18 years+ - NCT07470853RecruitingPhase 1
Study of HWK-016 for advanced ovarian or endometrial cancer
This trial tests a new drug called HWK-016, which is designed to target and deliver medicine directly to cancer cells that have a specific marker (MUC16). It is for people with advanced ovarian or endometrial cancer to see if it can shrink tumors or slow their growth.
Los Angeles, CaliforniaAges 18 years+ - NCT07452224RecruitingPhase 2
Combination treatment for advanced lung cancer
This trial tests a new drug, ILKN421H, combined with pembrolizumab (a type of immunotherapy) for people with advanced non-small cell lung cancer (NSCLC) that has not responded to standard treatments or has not been treated before. It aims to see if this combination can help shrink tumors or slow their growth.
Los Angeles, CaliforniaAges 18 years+ - NCT07444541RecruitingPhase 1/Phase 2
Study of ANO31905 plus chemo for CLDN18.2-positive pancreatic cancer
This trial tests a new drug called ANO31905 added to standard chemotherapy for people with advanced pancreatic cancer that has a specific protein called CLDN18.2 on its cells. The study aims to see if the combination works better than chemo alone.
Los Angeles, CaliforniaAges 18 years+ - NCT07413939RecruitingPhase 2/Phase 3
Study of RO7771950 vs tucatinib for HER2-positive breast cancer
This trial tests a new drug, RO7771950, against another drug called tucatinib. Both are given with standard chemotherapy to see which works better for advanced breast cancer that is HER2-positive. People with brain metastases may join.
San Francisco, CaliforniaAges 18 years+ - NCT05669430RecruitingPhase 1/Phase 2
Testing an anti-cancer drug alone and with pembrolizumab
This early-phase study tests GV20-0251 (an anti-cancer treatment) by itself and combined with pembrolizumab, to see how well it works and how safe it is. It is for adults with advanced solid tumors that have grown despite standard treatments, or where standard treatments aren’t an option.
Los Angeles, CaliforniaAges 18 years+ - NCT07405801RecruitingPhase 2
Inavolisib plus ribociclib plus fulvestrant for advanced breast cancer
This trial tests a combination of three drugs (inavolisib, ribociclib, and fulvestrant) compared to a placebo plus two of the drugs (ribociclib and fulvestrant) for people with advanced hormone receptor-positive breast cancer who have not had prior treatment for advanced disease. The goal is to see if adding inavolisib improves outcomes.
Anaheim, 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.
- City of Hope · 3 studies
- University of California, San Francisco · 3 studies
- Los Angeles Cancer Network · 2 studies
- START Los Angeles · 2 studies
- University of California, Los Angeles · 2 studies
- California Research Institute
- City of Hope Orange County Lennar Foundation Cancer Center
- Community Cancer Institute (CCI)
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.