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
- NCT06252649RecruitingPhase 3
Study of new drug combo for KRAS G12C colorectal cancer
This trial tests a new combination of drugs (sotorasib, panitumumab, and FOLFIRI) against the standard treatment for colorectal cancer that has spread. It's for people whose tumor has a specific KRAS G12C mutation and who have not had chemotherapy before for advanced disease.
Los Angeles, CaliforniaAges 18 years+ - NCT06267729RecruitingPhase 1/Phase 2
A new cell therapy for advanced prostate cancer
This trial tests a new cell therapy (AZD0754) for metastatic prostate cancer that has stopped responding to standard hormone therapy and chemotherapy. It’s looking for people whose cancer has gotten worse despite prior treatments, and who are still in fairly good health.
Duarte, CaliforniaAges 18–130 - NCT06235697RecruitingPhase 3
Hormone therapy with or without lymph node radiation for prostate cancer
This trial tests combining hormone therapy with different types of radiation (including high-dose external beam and brachytherapy) for men with prostate cancer that has a higher chance of coming back. It aims to see if adding radiation to the lymph nodes helps control the cancer better.
Redwood City, CaliforniaAges 18 years+ - NCT06236438RecruitingPhase 2/Phase 3
Livmoniplimab plus budigalimab and chemo for untreated lung cancer
This trial tests a new combination of two immune system drugs (livmoniplimab and budigalimab) plus standard chemotherapy compared to the current standard treatment (pembrolizumab plus chemo) for people with advanced non-small cell lung cancer that has not been treated yet. The goal is to see if the new combination works better at controlling the cancer.
La Jolla, CaliforniaAges 18 years+ - NCT03492671RecruitingPhase 2
Two chemotherapy drugs plus radiation before pancreatic surgery
This trial tests whether giving two already-approved chemotherapy drugs and radiation before surgery works better for localized pancreatic cancer. It’s meant for people whose cancer looks removable by surgery and who haven’t had prior pancreatic cancer treatment.
Loma Linda, CaliforniaAges 18 years+ - NCT06225427RecruitingPhase 1
Gilteritinib for advanced ALK-positive lung cancer
This trial tests a drug called gilteritinib for people with a specific genetic type of lung cancer (ALK-positive) that has spread and has been treated before. You may be eligible if you have already tried at least one targeted therapy, and your cancer is still growing.
Los Angeles, CaliforniaAges 18 years+ - NCT06225011RecruitingPhase 1
Can a common antidepressant help your immune system fight colorectal cancer before surgery?
This trial is testing whether a common antidepressant called fluoxetine (Prozac) can help your immune system fight colorectal cancer before surgery. It's for people with early-stage colorectal cancer who have not yet had treatment.
Los Angeles, CaliforniaAges 18 years+ - NCT06228053RecruitingPhase 2
Study of SX-682 plus enzalutamide for men with advanced prostate cancer
This trial tests whether adding the drug SX-682 to enzalutamide can help men whose prostate cancer has stopped responding to other hormone treatments. You may be eligible if your cancer is growing despite treatment with abiraterone, darolutamide, apalutamide, or enzalutamide.
Los Angeles, CaliforniaAges 18 years+ - NCT06218914RecruitingPhase 1
Study of a new treatment for KRAS G12D cancers
This trial tests a new type of cell therapy (called TCR-T) that targets a specific genetic change (KRAS G12D) in advanced solid tumors that have stopped responding to standard treatments. It may be an option if your cancer has this mutation and you have a specific tissue type (HLA).
Newport Beach, CaliforniaAges 18 years+ - NCT06217822RecruitingPhase 1
Testing a new radiation therapy for advanced prostate cancer
This trial tests a new radioactive drug, 225Ac-PSMA-Trillium, that targets prostate cancer cells. It is for people whose advanced prostate cancer has stopped responding to hormone therapy and may have spread.
Duarte, CaliforniaAges 18 years+ - NCT06203210RecruitingPhase 3
Study of a new drug for relapsed small cell lung cancer
This study tests a new drug, ifinatamab deruxtecan, against the doctor's choice of standard treatments for people with extensive-stage small cell lung cancer that has returned after initial platinum-based chemotherapy. The goal is to see if the new drug works better and if it might be a new option for you.
Fullerton, CaliforniaAges 18 years+ - NCT06205849RecruitingPhase 1
Testing a new drug and procedure for advanced pancreatic cancer
This trial tests a new drug called mitazalimab injected directly into the tumor, combined with a special electrical procedure that kills cancer cells. It is for people whose pancreatic cancer has not spread but cannot be removed by surgery.
La Jolla, CaliforniaAges 18 years+ - NCT06170788RecruitingPhase 3
New Two-Drug Immunotherapy Combo vs. Standard Immunotherapy for Advanced Lung Cancer
This study compares a new combination of two immunotherapy drugs (sacituzumab tirumotecan plus pembrolizumab) versus pembrolizumab alone for people with advanced non-small cell lung cancer that has a high PD-L1 level (≥50%) and has not been treated yet. The goal is to see if the combination works better than the standard single immunotherapy.
Burbank, CaliforniaAges 18 years+ - NCT06136650RecruitingPhase 3
Study of a new drug for advanced prostate cancer
This study tests a new oral drug called opevesostat against another standard hormone therapy for men with advanced prostate cancer that has spread and is no longer controlled by a first hormone therapy. It's for men who have not had chemotherapy for this stage and who have not used a PARP inhibitor or chose not to.
Irvine, CaliforniaAges 18 years+ - NCT06139627Recruiting
Geriatric assessment for older adults with lung cancer getting chemotherapy and radiation
This trial tests whether a special geriatric assessment can help manage side effects for adults aged 60 and older with non-small cell lung cancer who are starting a new treatment plan that includes chemotherapy and radiation. It aims to improve quality of life and treatment outcomes.
Duarte, CaliforniaAges 60 years+ - NCT06116682RecruitingPhase 2
Targeted treatment for MET-positive advanced lung cancer
This trial tests a targeted therapy for people with advanced non-small cell lung cancer whose tumors have extra copies of the MET gene. It's for those whose cancer has progressed after at least one prior treatment.
Auburn, CaliforniaAges 18 years+ - NCT06128551RecruitingPhase 1/Phase 2
Testing two targeted drugs for KRAS G12C advanced cancer
This study tests two oral medicines (elironrasib and daraxonrasib) given alone or together to see if they can shrink tumors or slow down cancer growth in people with advanced solid tumors that have a KRAS G12C mutation. It is for people who have already tried other treatments.
Orange, CaliforniaAges 18 years+ - NCT06128304Recruiting
Cervical cancer screening for women with HIV
This trial offers quick cervical cancer screening and treatment for women living with HIV, aiming to prevent cancer and improve health.
La Jolla, CaliforniaAges 25–64 - NCT06095505RecruitingPhase 2
Alisertib for extensive stage small cell lung cancer
This trial tests a new drug called alisertib for people with small cell lung cancer that has spread. It is for those who have already tried standard treatments (chemotherapy and immunotherapy) and need another option.
Long Beach, CaliforniaAges 18 years+ - NCT06103864RecruitingPhase 3
Study of Dato-DXd with or without durvalumab for advanced triple-negative breast cancer
This trial is testing whether a new drug combination (Dato-DXd with or without durvalumab) works better than standard chemotherapy plus pembrolizumab for people with a certain type of advanced triple-negative breast cancer that has a protein called PD-L1. The study aims to find a more effective treatment option for this specific group.
Glendale, CaliforniaAges 18 years+ - NCT06103682Recruiting
Treating growing lung spots with local therapy
This trial tests if focusing treatment on a few new or growing lung tumors can help people with lung cancer who are already on systemic therapy. You may qualify if you have stable disease overall but a small number of new spots that can be safely treated with radiation or other local procedures.
Sacramento, CaliforniaAges 18 years+ - NCT06089083Recruiting
Helping gynecologic cancer patients with frailty recover function
This study tests a program to help gynecologic cancer patients who are frail improve their physical function and quality of life during treatment. It aims to see if extra support can help you stay stronger and recover better.
San Francisco, CaliforniaAges 18 years+ - NCT06084234RecruitingPhase 4
National liver cancer screening trial
This trial is testing a new way to screen for liver cancer in people with cirrhosis or chronic hepatitis B. It aims to find cancer earlier so it can be treated more effectively.
Roseville, CaliforniaAges 18–85 - NCT02280161Recruiting
Study of inherited cancer gene samples in blood and saliva
This study collects blood and saliva to look for inherited gene changes in people who have been diagnosed with cancer. It may help researchers understand what genetic risks could be involved, which could guide future cancer care.
Los Angeles, 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
- Research Site · 3 studies
- University of California, San Francisco · 3 studies
- Kaiser Permanente-Vallejo · 2 studies
- Kaiser San Rafael-Gallinas · 2 studies
- University of California, Davis · 2 studies
- Alta Bates Summit Medical Center-Herrick Campus
- California Pacific Medical Center
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.