Clinical trials · California
Cancer clinical trials in California
We’re tracking 1,313 recruiting cancer studies with a site in California — including Phase 1, Phase 1/Phase 2, Phase 2, Phase 3 and Phase 4 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT06572423Recruiting
Personalized focused radiation for head and neck cancer
This trial tests a personalized, very precise radiation treatment (called PULS-Pal) for head and neck cancer that cannot be cured with standard therapies. It aims to shrink tumors and help with symptoms while limiting side effects.
Los Angeles, CaliforniaAges 18 years+ - NCT07446322RecruitingPhase 2
Study of a new drug plus standard chemo for advanced colorectal cancer
This trial tests if adding the experimental drug pelareorep to standard chemotherapy (FOLFIRI) and bevacizumab can help people with a specific type of advanced colorectal cancer that has a RAS mutation and is not caused by high microsatellite instability. You may be able to join if you've already tried one type of chemotherapy and it stopped working or you couldn't tolerate it.
Beverly Hills, CaliforniaAges 18 years+ - NCT06934239RecruitingPhase 4
AI-assisted vs. standard mammograms for breast cancer screening
This trial compares standard mammograms with mammograms aided by artificial intelligence (AI) to see if AI helps find breast cancer more accurately and reduces unnecessary callbacks. If you're 18 or older and getting a routine screening mammogram at one of the six participating health systems, you may be eligible.
Los Angeles, CaliforniaAges 18 years+ - NCT06335667Recruiting
MRI vs. TURBT for muscle-invasive bladder cancer
This study compares two ways to check if bladder cancer has grown into the muscle layer: an MRI scan (mpMRI) versus a standard surgery called TURBT (where a small tool removes a sample of the tumor). The goal is to see if the MRI can be as accurate as the surgery, so future patients might avoid an extra procedure.
Orange, CaliforniaAges 18 years+ - NCT07343024Recruiting
Finding a Personalized Drug for Advanced Cancer
This trial looks at whether drugs not usually used for your type of cancer can help you. It matches your tumor's test results to possible treatments and works with your doctor to try one.
Palo Alto, CaliforniaAges 18 years+ - NCT05176483RecruitingPhase 1
New drug combinations for advanced solid tumors
This trial tests a new drug called zanzalintinib, which may slow or shrink various types of advanced cancer. It is given together with other cancer treatments, and the study is looking at many different cancers including kidney, prostate, bladder, lung, liver, and more.
Palo Alto, CaliforniaAges 18 years+ - NCT07200830RecruitingPhase 3
Testing different schedules of a targeted radiation drug for advanced prostate cancer
This trial tests two different dosing schedules of a drug called Lutetium-177 PSMA RLT, which delivers radiation directly to prostate cancer cells. It is for men with advanced prostate cancer that has stopped responding to hormone therapy and has spread, who have not yet had chemotherapy for this stage of the disease.
Bakersfield, CaliforniaAges 18 years+ - NCT06801236RecruitingPhase 1
A new drug for advanced prostate cancer that has stopped responding to treatment
This early-phase trial tests a new study drug called ACE-232 for men with advanced prostate cancer that has stopped responding to standard hormone therapy and chemotherapy. It aims to see if the drug is safe and may help slow the cancer.
La Jolla, CaliforniaAges 18 years+ - NCT05564377RecruitingPhase 2
Find targeted cancer treatments using genetic testing
This study matches people with advanced solid tumors to targeted treatment plans based on genetic testing. It also requires tumor sample testing to help doctors choose the most promising therapy for your specific tumor changes.
Arroyo Grande, CaliforniaAges Any age - NCT04706663Recruiting
Genomics-guided treatment for people with prostate cancer
This trial uses genetic test results from your prostate cancer to guide treatment choices. It may help find therapies that better match the specific gene changes in your cancer.
La Jolla, CaliforniaAges 18–120 - NCT07185997RecruitingPhase 3
Testing firmonertinib for a type of lung cancer with rare EGFR mutations
This trial tests a new drug, firmonertinib, against other EGFR inhibitors as a first treatment for advanced lung cancer that has specific rare EGFR mutations (PACC mutations). It is for people who haven't had other treatments for their advanced cancer.
Fullerton, CaliforniaAges 18 years+ - NCT06219941RecruitingPhase 2
Studying AZD0901 for Claudin18.2-positive advanced solid tumors
This trial tests a new drug called AZD0901 for people with advanced solid tumors that have a specific protein on their surface. It aims to see if the drug can shrink or slow the growth of these tumors.
Orange, CaliforniaAges 18 years+ - NCT05227326RecruitingPhase 1
A new drug for solid cancers that did not respond to usual care
This early-stage (Phase 1) trial tests AOH1996 in adults with solid tumors that have stopped responding to standard treatments. It’s meant to find a safe dose and see if the drug can help, especially in cancers with limited options.
Duarte, CaliforniaAges 18 years+ - NCT07066657RecruitingPhase 1
Study of MRG007 for advanced solid tumors
This trial tests a new drug called MRG007 for people with advanced solid tumors that haven't responded to other treatments. The drug targets a protein called CDH17 on cancer cells; you need a tumor sample to check for it.
Los Angeles, CaliforniaAges 18 years+ - NCT06771219RecruitingPhase 1
Testing SLV-154 for advanced cancers
This trial tests a new drug called SLV-154 for people whose advanced cancer has not responded to standard treatments. The goal is to see if SLV-154 can shrink tumors or slow cancer growth.
Newport Beach, CaliforniaAges 12 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+ - NCT07227298RecruitingPhase 1/Phase 2
Study of new drug combo for advanced lung cancer
This study tests a new combination of cancer drugs (PF-08634404 with other anticancer agents) for people with advanced non-small cell lung cancer who have not yet received any treatment for their advanced disease. It aims to see if this combination can shrink tumors or slow cancer growth.
Fullerton, CaliforniaAges 18 years+ - NCT05652686RecruitingPhase 1/Phase 2
Studying PT217 for neuroendocrine cancers
This trial tests a new drug called Peluntamig (PT217) for people with certain types of neuroendocrine cancers, like small cell lung cancer. It aims to see if the drug can help when standard treatments stop working or aren't an option.
Duarte, 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+ - NCT03418961RecruitingPhase 3
Study of heart-risk management for metastatic HER2 breast cancer
This trial follows people with metastatic HER2-positive breast cancer who are at higher risk for heart damage while on HER2-targeted therapy. Some participants are randomly assigned to different monitoring/heart-protection approaches to see what best helps keep the heart safe.
Emeryville, CaliforniaAges 18 years+ - NCT03460769Recruiting
Mixed meal test to study diabetes from pancreas conditions
This study uses a special blood-sugar test (a mixed meal) to better diagnose and understand diabetes related to pancreatic cancer or chronic pancreatitis, and to compare it with other diabetes types. It may help researchers find clearer ways to tell these diabetes causes apart and understand how they work.
Los Angeles, CaliforniaAges 30–84 - NCT03606967RecruitingPhase 2
Individualized vaccine added to standard treatment for metastatic triple-negative breast cancer
This Phase 2 trial tests whether adding a personalized cancer vaccine to durvalumab (an immunotherapy), tremelimumab (another immunotherapy), and chemotherapy can improve outcomes for people with metastatic triple-negative breast cancer. It may help your immune system recognize your specific tumor features.
Orange, CaliforniaAges 18 years+ - NCT03686124RecruitingPhase 1/Phase 2
Tested immune therapy for certain HLA-A2 positive solid tumors
This trial studies an immune-based cancer treatment (IMA203/IMA203CD8) either alone or with nivolumab in people whose solid tumors have come back or will not respond to standard care. It may help by training the immune system to recognize and attack tumor cells that match the trial’s test requirements.
Stanford, CaliforniaAges 18 years+ - NCT03816345RecruitingPhase 1
Nivolumab for advanced cancer with autoimmune conditions
This Phase 1 study tests nivolumab, an immunotherapy “anti-cancer accelerator,” in people with advanced cancer who also have an autoimmune disorder. It aims to see if nivolumab can be given safely and whether it may help shrink or control cancer.
Palo Alto, 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.
- University of California Davis Comprehensive Cancer Center · 5 studies
- University of California, San Francisco · 4 studies
- City of Hope Comprehensive Cancer Center · 3 studies
- Stanford University · 3 studies
- University of California, Irvine Medical Center / UC Irvine Health · 3 studies
- University of California, Los Angeles (UCLA) · 3 studies
- USC / Norris Comprehensive Cancer Center · 3 studies
- Cedars-Sinai Medical 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 1,313 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.