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, Phase 3 and Phase 4 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT07401381RecruitingPhase 1
Injectable vs. oral letrozole in early breast cancer
This study compares a new injectable form of the drug letrozole with the standard oral pill. It aims to find out if the injection works as well as the pill for women who have already taken letrozole for their early breast cancer and have finished their initial treatment.
Beverly Hills, CaliforniaAges 18–80 - NCT06272864Recruiting
A study looking at genetics of certain advanced cancers
This study tests the genes of your cancer to learn more about advanced breast, lung, melanoma, or sarcoma tumors. It may help doctors find better ways to treat these cancers in the future.
Stockton, CaliforniaAges 18 years+ - NCT07397338RecruitingPhase 1/Phase 2
RAS inhibitors with ivonescimab for solid tumors
This trial tests new drugs called RAS(ON) inhibitors combined with ivonescimab for people with solid tumors that have a RAS mutation. It aims to see if this combination can shrink tumors or slow their growth.
Los Angeles, CaliforniaAges 18 years+ - NCT07365319RecruitingPhase 2/Phase 3
New drug combo for stage 4 lung cancer
This trial tests a new drug called EIK1001 combined with standard immunotherapy (pembrolizumab) and chemotherapy for people with stage 4 non-small cell lung cancer who have not been treated before. The goal is to see if adding EIK1001 helps shrink tumors more than the current standard treatment.
Glendale, CaliforniaAges 18 years+ - NCT07368998RecruitingPhase 2
Study of inavolisib plus fulvestrant for advanced breast cancer
This trial tests whether a new targeted pill (inavolisib) plus hormone therapy (fulvestrant) can slow or stop breast cancer growth in people whose cancer has a specific genetic change called a PIK3CA mutation. It is for patients whose disease worsened after previous hormone-and-CDK-inhibitor treatment.
Los Angeles, CaliforniaAges 18 years+ - NCT07365241RecruitingPhase 3
Study of ABBV-706 vs standard care for advanced small cell lung cancer
This trial tests a new drug called ABBV-706 against standard treatments (topotecan, lurbinectedin, or amrubicin) for people with small cell lung cancer that has come back or stopped responding to previous therapies. The goal is to see if ABBV-706 works better at controlling the cancer.
Duarte, CaliforniaAges 18 years+ - NCT07357597RecruitingPhase 4
Preventing mouth sores during breast or lung cancer treatment
This trial tests whether a steroid mouthwash can prevent mouth sores caused by the drug Datopotamab Deruxtecan (Dato-DXd). It is for people with certain types of advanced breast cancer or lung cancer who are about to start Dato-DXd for the first time.
Glendale, CaliforniaAges 18 years+ - NCT07361510RecruitingPhase 3
Pumitamig vs Keytruda for advanced lung cancer with high PD-L1
This trial compares an experimental drug called Pumitamig with the approved immunotherapy drug Pembrolizumab (Keytruda) as the first treatment for advanced lung cancer that has high PD-L1 levels. The goal is to see which drug works better and has fewer side effects.
Beverly Hills, CaliforniaAges 18 years+ - NCT07337525RecruitingPhase 1
First study of PLT012 in advanced solid tumors
This trial tests a new drug called PLT012 for people with advanced solid tumors. It is the first study in humans, so doctors will see if the drug is safe and how the body handles it.
Los Angeles, CaliforniaAges 18 years+ - NCT07318558RecruitingPhase 3
Study of Sac-TMT for advanced ovarian cancer without HRD
This trial is testing a new drug called Sac-TMT for people with advanced ovarian cancer that has not responded well to initial platinum-based chemotherapy and does not have a specific gene change called HRD. It aims to see if this drug can work better than standard treatment.
Walnut Creek, CaliforniaAges 18 years+ - NCT07323641RecruitingPhase 2
Telisotuzumab Vedotin and Osimertinib for Advanced Lung Cancer
This trial tests a combination of two drugs—telisotuzumab vedotin and osimertinib—for people with a specific type of advanced non-small cell lung cancer that has stopped responding to osimertinib alone. The goal is to see if adding the second drug can help control the cancer.
Los Angeles, CaliforniaAges 18 years+ - NCT07300241RecruitingPhase 1
Study of NEO-811 for advanced kidney cancer
This trial tests a new drug called NEO-811 for people with advanced clear cell kidney cancer that has spread and can't be removed with surgery. The goal is to see if it helps when other treatments have stopped working or aren't an option.
Duarte, CaliforniaAges 18 years+ - NCT07303725Recruiting
Spectral CT scan during cancer tumor treatment
This study tests a special CT scan used during procedures to treat tumors, like blocking blood flow or burning the tumor. It may help doctors see tumors more clearly during the treatment.
Palo Alto, CaliforniaAges 18 years+ - NCT07303816RecruitingPhase 4
Can statins prevent blood clots in cancer patients?
This trial tests whether a daily statin (rosuvastatin) can help prevent dangerous blood clots in people with advanced cancer who are starting new cancer therapy. It is for those at medium or high risk for clots, based on a simple risk score.
Irvine, CaliforniaAges 18 years+ - NCT07293247RecruitingPhase 2
Targeted radiation after lung cancer surgery
This trial tests if targeted radiation after surgery can help people with non-small cell lung cancer who still have cancer in their lymph nodes after chemotherapy. Participants will have had surgery and chemotherapy before starting radiation.
Los Angeles, CaliforniaAges 18 years+ - NCT07293585RecruitingPhase 3
Precision radiation to protect erectile function in prostate cancer
This trial tests a new radiation technique to better protect erectile function during prostate cancer treatment. It uses advanced imaging to precisely target the tumor while reducing harm to nearby structures.
Los Angeles, CaliforniaAges 18 years+ - NCT07287917RecruitingPhase 1/Phase 2
Testing a new drug combo for advanced breast cancer or melanoma
This trial tests a new combination of drugs (AMXT 1501, DFMO, and standard therapies) for people with advanced solid tumors, specifically breast cancer (ER+ HER2-) or melanoma that has progressed after other treatments. The goal is to see if this combination can help shrink tumors or slow their growth.
Los Angeles, CaliforniaAges 18 years+ - NCT07288177RecruitingPhase 2
A study of Rina-S for people with non-small cell lung cancer
This trial tests a new drug called Rina-S for people with non-small cell lung cancer that has spread or can't be removed by surgery. It aims to see if the drug can shrink tumors and how safe it is.
Fountain Valley, CaliforniaAges 18 years+ - NCT05833360Recruiting
Blood test study to match cancer patients to treatment
This study collects a small amount of your blood to analyze cancer signals and sort patients by cancer “size and stage.” The goal is to see whether this blood-based information can help guide cancer care more accurately.
Palo Alto, CaliforniaAges 18 years+ - NCT07284849RecruitingPhase 3
Testing a new drug combo for advanced colorectal cancer
This trial tests whether adding an experimental drug (INCA33890) to standard chemotherapy and bevacizumab helps people with a certain type of advanced colorectal cancer. It is for those whose cancer has spread and has not been treated yet with systemic therapy.
Fountain Valley, 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+ - NCT07278336RecruitingPhase 1
Study of a new drug for advanced ovarian cancer
This trial tests a new drug called ABBV901, given alone or with other anticancer drugs, for people with advanced ovarian, fallopian tube, or primary peritoneal cancer. The goal is to see how well it works and how it affects the body.
Duarte, CaliforniaAges 18 years+ - NCT07271355RecruitingPhase 3
Pressurized chemo spray for appendix or colorectal cancer spread in abdomen
This trial tests a new way to deliver chemotherapy directly into the abdomen as a pressurized spray, using a drug called mitomycin. It is for people with appendix or colorectal cancer that has spread to the lining of the abdomen and cannot be removed by surgery.
Duarte, CaliforniaAges 18 years+ - NCT06338475Recruiting
Support program for Latino young adults with cancer
This trial tests a support program designed to help Latino and Hispanic young adults cope with the challenges of cancer. It focuses on reducing distress and helping you move toward your goals.
Irvine, CaliforniaAges 18–39
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 Orange County Lennar Foundation Cancer Center · 3 studies
- USC Norris Comprehensive Cancer Center · 3 studies
- City of Hope · 2 studies
- Los Angeles Cancer Network · 2 studies
- BASS Cancer Center
- Beverly Hills Cancer Center
- Cancer and Blood Research Center, LLC
- City of Hope - Orange County Lennar Foundation Cancer Center /ID# 281396
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.