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
- NCT06119685RecruitingPhase 1/Phase 2
IDP-023 alone or with other antibodies for blood cancers
This trial tests an experimental drug, IDP-023, given alone or with antibody therapies for people with advanced blood cancers like multiple myeloma or non-Hodgkin lymphoma that have not responded to previous treatments. The goal is to see if it can shrink tumors or slow the disease.
Los Angeles, CaliforniaAges 18 years+ - NCT07001748RecruitingPhase 2/Phase 3
Testing abdominal chemo plus standard chemo for stomach cancer spread
This trial tests adding the chemotherapy drug paclitaxel directly into the abdomen (intraperitoneal) along with standard IV chemotherapy for people with stomach or gastroesophageal junction cancer that has spread to the lining of the abdomen. The goal is to see if this combination helps control the cancer better than standard treatment alone.
Irvine, CaliforniaAges 18 years+ - NCT06997029RecruitingPhase 1
Study of BMS-986500 for advanced solid tumors
This trial tests a new drug called BMS-986500, alone or with other treatments, for people with advanced solid tumors that cannot be removed by surgery or have spread. It aims to see if the drug is safe and effective.
Fullerton, 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+ - NCT06998407RecruitingPhase 1/Phase 2
Study of AVZO-023 for advanced solid tumors
This trial tests a new drug, AVZO-023, alone or with other treatments, for people with advanced solid tumors that have not responded to standard therapy. The goal is to see if it can shrink tumors or slow their growth.
Los Angeles, CaliforniaAges 18 years+ - NCT06989112RecruitingPhase 3
First-line treatment for advanced or recurrent endometrial cancer
This trial tests a new combination of drugs for endometrial cancer that has spread or come back. It aims to see if these drugs can shrink tumors and help people live longer. It is for tumors that have a certain protein (HER2) and are mismatch repair proficient (meaning they have a normal DNA repair system).
Duarte, 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+ - NCT06980077RecruitingPhase 2
Ivonescimab for advanced thymic carcinoma
This trial tests a new drug called ivonescimab for thymic carcinoma that has come back or isn't responding to other treatments. It aims to see if this drug can shrink the cancer and help you feel better.
Davis, CaliforniaAges 18 years+ - NCT06952803RecruitingPhase 3
Testing a new drug for men with BRCA-related prostate cancer
This trial tests whether adding a new drug (saruparib) to standard radiation and hormone therapy can help prevent prostate cancer from spreading to other parts of the body. It is for men with high-risk prostate cancer that has a BRCA gene mutation.
La Jolla, 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+ - NCT02328677Recruiting
Colorectal cancer study for newly diagnosed patients
This study enrolls people newly diagnosed with colon or rectal cancer to learn about their care and outcomes. You might be able to join if you meet the age, language, and consent requirements.
Los Angeles, CaliforniaAges 18–89 - NCT06952504RecruitingPhase 3
Comparing two drug combos for advanced endometrial cancer
This trial tests a new drug combination (sacituzumab tirumotecan plus pembrolizumab) against pembrolizumab alone for people with a specific type of advanced or recurrent endometrial cancer that has normal mismatch repair function. It aims to see which treatment works better.
Irvine, CaliforniaAges 18 years+ - NCT06948448RecruitingPhase 2
New treatment for advanced colorectal cancer with PD-L1 biomarker
This trial tests a new drug (ONO-4578) combined with standard chemotherapy and immunotherapy for people with advanced colorectal cancer that has not been treated before and has a specific marker called PD-L1. The goal is to see if this combination works better than the usual treatment.
Los Angeles, CaliforniaAges 18 years+ - NCT06952660RecruitingPhase 4
Eye tests for people taking Tivdak for cervical cancer
This trial is for people with cervical cancer that has come back or spread and is getting worse after chemotherapy. It will check your eyes regularly while you take Tivdak to see how the drug affects them.
Duarte, CaliforniaAges 18 years+ - NCT06937177RecruitingPhase 2
Testing mifomelatide to help maintain weight during chemo
This trial tests an investigational drug called mifomelatide (TCMCB07) to see if it can help people with newly diagnosed colorectal or pancreatic cancer maintain a healthy weight while receiving certain types of chemotherapy. You would give yourself a daily injection under the skin.
Santa Monica, CaliforniaAges 18 years+ - NCT06931340RecruitingPhase 3
Adding chemo to hormone therapy for advanced prostate cancer
This trial is for men with metastatic prostate cancer that has already spread beyond the pelvis. It tests whether adding a chemotherapy drug (docetaxel) to the usual hormone therapy plus apalutamide can help control the cancer better than hormone therapy alone.
Dublin, CaliforniaAges 18 years+ - NCT06931860Enrolling by invitation
Mailed colon cancer screening test comparison
This trial compares two home colon cancer screening tests, Cologuard and FIT, mailed directly to you. It aims to see which one helps more people complete screening and find the test that works best for you.
La Jolla, CaliforniaAges 45–49 - NCT06922539RecruitingPhase 1
Experimental drug ST-001 nanoFenretinide for small cell lung cancer
This phase 1 trial tests an experimental drug called ST-001 nanoFenretinide for people with small cell lung cancer that has returned or not responded to standard chemotherapy. The drug is a newer form of fenretinide, which is related to vitamin A, and may work differently to attack cancer cells.
Los Angeles, CaliforniaAges 18 years+ - 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+ - 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 - NCT06892548RecruitingPhase 1/Phase 2
Combination therapy for advanced lung cancer
This trial tests a new combination of two investigational drugs, BNT324 and BNT327, for people with advanced lung cancer that cannot be removed by surgery. It aims to see if the combination is safe and effective for different types of lung cancer, including non-small cell and small cell lung cancer.
Santa Monica, CaliforniaAges 18 years+ - NCT06899126RecruitingPhase 3
Study of a drug combo for first-line HER2-positive lung cancer
This trial tests a new combination of drugs (trastuzumab deruxtecan, pembrolizumab, and chemotherapy) as a first treatment for people with advanced non-small cell lung cancer that has high levels of the HER2 protein. The goal is to see if this combination works better than current options.
Los Angeles, CaliforniaAges 18 years+ - NCT06880055Recruiting
Shield blood test for colorectal cancer screening
This study is testing the Shield blood test for people at average risk of colorectal cancer. It looks at how well the test works for screening, so you can learn about your risk with a simple blood draw.
Anaheim, CaliforniaAges 45–81
Cancer trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting cancer studies listed above.
- Cedars-Sinai Medical Center · 4 studies
- Research Site · 4 studies
- UC San Diego Moores Cancer Center · 3 studies
- University of California, San Francisco · 2 studies
- USC Norris Comprehensive Cancer Center · 2 studies
- Alliance Research Institute, LLC
- Amicis Research Center
- Avenzo Therapeutics Recruiting Site
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.