Clinical trials · California
Cancer clinical trials in California
We’re tracking 1,311 recruiting cancer studies with a site in California — including Phase 1, Phase 1/Phase 2, Phase 2 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT07224724Recruiting
Exosome liquid biopsy for colorectal cancer spread
This study uses a blood test to detect if colorectal cancer that has spread to the liver has also spread to other parts of the body. It may help doctors better understand how the cancer is moving and guide treatment decisions.
Duarte, 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+ - NCT07224789Recruiting
Finding colorectal cancer early with a blood test for circular RNA
This study is testing whether a simple blood test can detect circular RNA, a potential early marker for colorectal cancer. If you have early-stage colorectal cancer (stage I–III) and have had a blood sample taken before any treatment, you may be able to help researchers develop a better detection method.
Duarte, CaliforniaAges 18 years+ - NCT07255729Recruiting
Blood Test for Colon Cancer Staging
This study looks at a new blood test that may help doctors better understand how far colon cancer has spread. By testing a sample of your blood (taken before surgery), researchers hope to find patterns that predict the stage of cancer and help guide treatment decisions.
Duarte, CaliforniaAges 18 years+ - NCT06730347RecruitingPhase 2
Study of lorigerlimab for advanced ovarian and other cancers
This trial tests a new drug, lorigerlimab, for people with certain types of ovarian cancer or related cancers that have come back or not responded to treatment. The goal is to see if the drug can help shrink tumors or slow the disease.
Los Angeles, CaliforniaAges 18 years+ - NCT06757634RecruitingPhase 3
A study of gedatolisib for first-line advanced breast cancer
This trial tests a new targeted therapy called gedatolisib for people with HR-positive, HER2-negative advanced breast cancer who have not yet received treatment for metastatic disease. It aims to see if adding this drug to standard hormone therapy can help control the cancer longer.
Los Angeles, CaliforniaAges 18 years+ - NCT06769126RecruitingPhase 2
Personalized treatment study for extensive stage small cell lung cancer
This study uses biomarker tests on your tumor to find a personalized treatment after initial chemotherapy. You will be assigned to one of four treatment groups based on your biomarker results.
Rancho Mirage, CaliforniaAges 18 years+ - NCT06797635RecruitingPhase 2
Study of Patritumab Deruxtecan and Pembrolizumab for High-Risk Early Breast Cancer
This trial tests a combination of targeted therapies (patritumab deruxtecan plus pembrolizumab) along with other anticancer drugs for people with a high-risk type of early-stage breast cancer that is either triple-negative or has very low hormone receptors and is HER2-negative. The goal is to see if this approach can help prevent the cancer from coming back.
Santa Monica, CaliforniaAges 18 years+ - NCT06810544RecruitingPhase 1/Phase 2
Study of TNG456 for tumors with MTAP loss
This trial tests a new drug called TNG456, alone or with another drug (abemaciclib), for people whose tumors have lost the MTAP gene. It aims to see if the combination can shrink tumors or slow their growth.
Los Angeles, CaliforniaAges 18 years+ - NCT06824974Recruiting
Time-restricted eating for liver disease or cancer
This study tests whether combining time-restricted eating with healthy eating helps people with metabolic liver disease, cirrhosis, or early-stage liver cancer. If you are overweight and currently fast less than 12 hours at night, this diet approach might improve your health.
La Jolla, CaliforniaAges 18 years+ - NCT06840886RecruitingPhase 1
Testing a new drug for advanced solid tumors
This study tests an experimental drug called PHST001 for people with advanced solid tumors that have stopped responding to standard treatments. The goal is to see if it is safe and if it can help shrink tumors.
Beverly Hills, CaliforniaAges 18 years+ - NCT06856694Recruiting
Feedback tool to help men with prostate cancer decide on treatment
This trial tests a computer tool that analyzes your conversations with doctors. It aims to help you make a more informed choice about prostate cancer treatment.
Los Angeles, CaliforniaAges 18 years+ - NCT06860594RecruitingPhase 1
Triapine plus radiation for recurrent brain tumors
This trial tests whether adding an experimental drug called triapine to a second round of radiation therapy can help treat brain tumors that have come back after initial treatment. It may be a good option for people with recurrent glioblastoma or astrocytoma who meet safety criteria.
Duarte, CaliforniaAges 18 years+ - NCT06860815RecruitingPhase 2
Cemiplimab with liver radiation for breast cancer that spread to the liver
This trial tests a combination of a drug called cemiplimab (an immunotherapy that helps your immune system fight cancer) and a type of targeted radiation (Y-90 SIR-Spheres) given directly to liver tumors. It is for people with breast cancer that has spread to the liver and who have already had at least one type of chemotherapy.
Duarte, CaliforniaAges 18 years+ - NCT06861088RecruitingPhase 3
Kinisoquin for preventing blood clots in pancreatic cancer
This trial tests whether an investigational drug called Kinisoquin™ can help prevent blood clots in people with advanced pancreatic cancer who are starting their first chemotherapy. It may be a good option if you are looking for extra protection against clots during treatment.
Ventura, CaliforniaAges 18 years+ - NCT06868485RecruitingPhase 2
Study of WSD0922-FU for advanced lung cancer with C797S mutation
This trial tests a new drug, WSD0922-FU, for people with advanced non-small cell lung cancer that has a specific genetic change called C797S. It is for those whose cancer has gotten worse after treatment with osimertinib.
Oxnard, CaliforniaAges 18 years+ - NCT06879041RecruitingPhase 1
Study of a radiation drug for advanced prostate cancer
This trial tests a new drug that delivers radiation directly to cancer cells. It is for men with metastatic castration-resistant prostate cancer that has progressed after other treatments.
Palo Alto, CaliforniaAges 18 years+ - NCT06898450RecruitingPhase 1/Phase 2
Study of new drug NDI-219216 for advanced solid tumors
This study tests a new drug called NDI-219216 for people with advanced solid tumors that have stopped responding to standard treatments. The goal is to see if it is safe and can help shrink or control the cancer.
Los Angeles, CaliforniaAges 18–99 - NCT06926920RecruitingPhase 1/Phase 2
Testing a new dose schedule of sacituzumab govitecan for advanced TNBC
This trial tests a different dose and schedule of the drug sacituzumab govitecan for people with advanced triple-negative breast cancer. It aims to see if this new approach is safer and more effective.
Los Angeles, CaliforniaAges 18 years+ - NCT06956690RecruitingPhase 1/Phase 2
Testing HMBD-501 for HER3-positive advanced solid tumors
This trial tests a new drug, HMBD-501, for people with advanced solid tumors that have a specific protein called HER3. The goal is to see if the drug is safe and if it can help shrink or control the cancer.
La Jolla, CaliforniaAges 18 years+ - NCT06961084RecruitingPhase 2
I-124 PET/CT scan for diagnosing thyroid cancer
This trial tests whether a new type of scan (I-124 PET/CT) can better detect thyroid cancer compared to standard scans. It may help doctors decide on the best treatment, such as radiation therapy or surgery.
San Francisco, CaliforniaAges 13 years+ - NCT06966453RecruitingPhase 1/Phase 2
Study of disitamab vedotin for HER2-positive advanced breast cancer
This study tests a new drug called disitamab vedotin for people with advanced breast cancer that has a certain amount of HER2 protein. Depending on your HER2 and hormone receptor status, you may be eligible for one of three groups, each with different prior treatment requirements.
Anaheim, CaliforniaAges 18 years+ - NCT06990542RecruitingPhase 2
Focused radiation therapy for intermediate and high-risk prostate cancer
This trial tests a more precise radiation therapy that targets tumors seen on MRI or special scans, aiming to treat prostate cancer while reducing side effects. It is for men who have not had prostate surgery or previous radiation to the area.
La Jolla, CaliforniaAges 18 years+ - NCT06996782RecruitingPhase 1/Phase 2
Lung cancer study testing new combination treatments
This study tests a new drug (rilvegostomig) alone or with chemotherapy or another drug (ramucirumab) for advanced non-small cell lung cancer that has spread. It aims to see if these combinations work better than standard treatments.
Santa Rosa, 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 Comprehensive Cancer Center · 7 studies
- Research Site · 3 studies
- University of California, Los Angeles (UCLA) · 3 studies
- USC / Norris Comprehensive Cancer Center · 3 studies
- Los Angeles Cancer Network · 2 studies
- University of California Davis Comprehensive Cancer Center · 2 studies
- University of California San Diego Health · 2 studies
- University of California, San Francisco · 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 1,311 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.