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
- NCT07062172Recruiting
Lung cancer screening for family members
This trial offers a low-dose chest CT scan to screen for lung cancer in family members of people with a specific genetic mutation driving their lung cancer. It aims to catch cancer early in those at higher risk.
Orange, CaliforniaAges 18–80 - NCT07070466RecruitingPhase 2
Ivonescimab with chemotherapy for advanced stomach or esophagus cancer
This trial tests a new drug called ivonescimab combined with chemotherapy (FOLFOX) for advanced stomach, gastroesophageal junction, or esophageal cancer that is not HER2 positive. The goal is to see if this combination can help shrink tumors or slow their growth.
Santa Monica, CaliforniaAges 18 years+ - NCT07077239Recruiting
Adaptive radiation after prostate surgery to lower side effects
This trial tests a precise, short-course radiation treatment (stereotactic body radiotherapy) after prostate removal surgery that adapts to your body each day to reduce side effects. It is for people whose prostate cancer has high-risk features or a rising PSA after surgery.
Los Angeles, CaliforniaAges 18 years+ - NCT07097142RecruitingPhase 3
Shorter radiation for bladder cancer with chemo
This trial tests if a shorter course of radiation therapy works as well as the usual longer course for people with bladder cancer who are also receiving standard chemotherapy. The goal is to see if shorter treatment can reduce side effects while still being effective.
Irvine, CaliforniaAges 18 years+ - NCT07111507RecruitingPhase 2
Tarlatamab for advanced prostate cancer
This trial tests a drug called tarlatamab for people with advanced prostate cancer that has a specific protein (DLL3) on their tumor cells. The goal is to see if tarlatamab can help shrink or slow the cancer.
San Diego, CaliforniaAges 18 years+ - NCT07128680RecruitingPhase 1
Immunotherapy with or without a gut bacteria pill for kidney cancer
This trial tests whether adding a live bacteria pill (EXL01) to standard immunotherapy drugs (nivolumab and ipilimumab) helps treat advanced or metastatic kidney cancer that has clear cells. You may join if you have not had prior immunotherapy and your cancer has not been treated before (except possibly after surgery).
Duarte, CaliforniaAges 18 years+ - NCT07145177RecruitingPhase 1
Lu177-PSMA with liver treatment for advanced prostate cancer
This trial tests a targeted radiation drug (Lu177-PSMA) combined with procedures that treat liver tumors directly (like ablation or radiation). It is for men with prostate cancer that has spread to the liver and is no longer responding to hormone therapy. The goal is to see if this combination works better together.
San Francisco, CaliforniaAges 18 years+ - NCT07203911Recruiting
Ultrasound guidance for oral cancer surgery
This trial tests whether surgeons can use ultrasound during surgery to better guide the removal of oral cancer. It may help ensure all cancer is removed while sparing healthy tissue.
Stanford, CaliforniaAges 18 years+ - NCT07288034RecruitingPhase 2
Immunotherapy biomarkers for advanced lung cancer
This study looks at blood and tissue biomarkers to predict how well immunotherapy (with or without chemotherapy) works for advanced non-small cell lung cancer. It also helps decide the best second treatment if the first one stops working.
Lancaster, CaliforniaAges 18 years+ - NCT06428409RecruitingPhase 1/Phase 2
A study of MK-2870 for several gastrointestinal cancers
This trial is testing a new drug called MK-2870, alone or with other treatments, for people with advanced colorectal, pancreatic, or bile duct cancer. It aims to see if the drug can help shrink or control the cancer.
Los Angeles, CaliforniaAges 18 years+ - NCT07265674RecruitingPhase 3
Study of nanvuranlat for advanced bile duct cancer
This study tests a new drug called nanvuranlat for people with advanced bile duct cancer that has gotten worse after platinum-based chemotherapy. It compares nanvuranlat with the doctor's choice of standard treatments to see which works better.
Duarte, CaliforniaAges 18 years+ - NCT01518400Recruiting
Sharing childhood cancer history to improve survivor care
This study builds a database of people who were diagnosed with cancer as children or teens. It looks at survivors who are done with treatment and currently have no evidence of disease, to help improve long-term follow-up care.
Los Angeles, CaliforniaAges Any age - NCT01514045Recruiting
Gastric cancer registry for patients and certain family members
This study builds a registry (a secure database) to learn about people with gastric cancer, people at higher risk because of family history, and people with a specific inherited gene change. Being in the registry may help researchers understand causes and improve future care.
Stanford, CaliforniaAges 18 years+ - NCT00949819Recruiting
Active surveillance study for localized prostate cancer
This trial studies a “watchful waiting” approach, where doctors closely monitor certain prostate cancers with regular checkups and repeat biopsies. It may help people avoid or delay treatment side effects while watching for signs the cancer needs treatment.
Los Angeles, CaliforniaAges 30–85 - NCT01766297RecruitingPhase 2
Proton radiation after lumpectomy for early breast cancer
This trial studies a type of radiation made with protons to treat only part of the breast after surgery (lumpectomy) for early-stage breast cancer. It may help control the cancer while aiming to reduce radiation to surrounding tissues.
San Diego, CaliforniaAges 50 years+ - NCT02305654RecruitingPhase 3
Trial for penile squamous cancer with swollen groin or pelvis nodes
This Phase 3 study tests treatment options for penile squamous cell cancer that has spread to nearby groin and/or pelvic lymph nodes (but not to distant organs). If you have the right stage and haven’t had certain prior treatments, this trial may offer a structured treatment plan and close monitoring.
Los Angeles, CaliforniaAges 18 years+ - NCT02970045Recruiting
USC care program for cancer patients enrolled at Norris
This trial is part of a cancer care program for people receiving outpatient or inpatient care at USC Norris. It helps enroll patients into the program’s care and research paperwork, with consent available in English or Spanish.
Los Angeles, CaliforniaAges 18 years+ - NCT06432036RecruitingPhase 1/Phase 2
Y90 Radioembolization for Early Kidney Cancer
This trial tests a treatment called Y90 radioembolization for people with early-stage kidney cancer who cannot have surgery or ablation. Tiny radioactive beads are delivered through a catheter to the tumor's blood supply to destroy it from the inside.
Los Angeles, CaliforniaAges 18 years+ - NCT07217704RecruitingPhase 3
New PET scan to find stomach or esophageal cancer spread
This trial tests a new PET scan drug (18F-FAPI) to see if it can better detect where stomach or esophageal cancer has spread. It may help doctors plan the right treatment for you.
Cerritos, CaliforniaAges 18 years+ - NCT07590934RecruitingPhase 1/Phase 2
Testing new cancer drugs for advanced prostate cancer
This study tests new anti-cancer drugs for men whose prostate cancer has spread and stopped responding to hormone therapy. The goal is to find treatments that work when standard drugs no longer help.
Duarte, CaliforniaAges 18–99 - NCT05098132RecruitingPhase 1/Phase 2
STK-012 drug for advanced lung cancer and other tumors
This trial tests STK-012 (alone and with other treatments) in people with advanced cancers, especially non-small cell lung cancer. It may help by activating the immune system to recognize and fight the tumor.
Beverly Hills, CaliforniaAges 18 years+ - NCT07223385RecruitingPhase 2
Heart health check for prostate cancer patients on ARPI therapy
This trial is for men with advanced prostate cancer who are taking ARPI therapy. It offers a special heart health consultation to help manage the increased heart risk that can come with these powerful cancer treatments.
Los Angeles, CaliforniaAges 45 years+ - NCT07673016Recruiting
Collecting urine to test a new bladder cancer detection method
This study collects urine samples to test UroAmp, a new genetic test that may help detect and monitor bladder cancer. It is for people with bladder cancer or blood in urine who want to help improve cancer detection.
San Jose, CaliforniaAges 18 years+ - NCT07499674RecruitingPhase 3
A lung cancer surgery study to test a special imaging dye
This trial tests a dye called abenacianine (VGT-309) that may help surgeons see cancer more clearly during lung surgery. It looks at whether the dye is safe and effective for identifying cancer in people having surgery to remove a lung lesion or mass.
Duarte, 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 · 5 studies
- University of California, Los Angeles (UCLA) · 4 studies
- Hoag Memorial Hospital Presbyterian · 3 studies
- University of California, Irvine Medical Center / UC Irvine Health · 3 studies
- Cedars-Sinai Medical Center · 2 studies
- City of Hope Orange County Lennar Foundation Cancer Center · 2 studies
- Stanford University · 2 studies
- UC San Diego Moores Cancer 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 1,311 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.