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
- NCT07098988RecruitingPhase 2
Visugromab plus standard chemo-immunotherapy for lung cancer
This trial tests an experimental drug called visugromab added to standard chemotherapy and immunotherapy for people newly diagnosed with advanced non-squamous lung cancer. It aims to see if the combination works better than standard treatment alone.
Los Angeles, CaliforniaAges 18 years+ - NCT06172296RecruitingPhase 3
Dinutuximab plus transplant for high-risk neuroblastoma
This trial tests adding a targeted drug called dinutuximab to standard chemotherapy, surgery, and a stem cell transplant for children and young adults with a new diagnosis of high-risk neuroblastoma. The goal is to see if this combination helps more patients stay in remission.
Downey, CaliforniaAges Up to 30 years - NCT03824652RecruitingPhase 2
Walnuts and omega-3 to help weight loss before prostate surgery
This Phase 2 study tests whether adding walnuts (and related nutrients like omega-3s) can help with weight loss and energy in people with prostate cancer who are planning prostate removal surgery. It aims to see if diet changes improve how you feel and manage weight before and around treatment.
Los Angeles, CaliforniaAges 18 years+ - NCT07406633RecruitingPhase 2
KQB198 plus imatinib for advanced GIST
This trial tests a new drug called KQB198 combined with imatinib for people with advanced or metastatic gastrointestinal stromal tumor (GIST) that has a specific KIT or PDGFRA mutation. The goal is to see if this combination works better than imatinib alone as a first treatment.
Los Angeles, CaliforniaAges 18 years+ - NCT06623422RecruitingPhase 3
Vaccine plus Keytruda for lung cancer after surgery
This trial tests combining a cancer vaccine (V940) with the immunotherapy drug pembrolizumab (Keytruda) for people with non-small cell lung cancer that was treated with chemo and Keytruda before surgery but wasn't completely removed. The goal is to see if adding the vaccine helps prevent the cancer from coming back.
Fullerton, CaliforniaAges 18 years+ - NCT06809140RecruitingPhase 2
Bladder-sparing treatment for muscle-invasive bladder cancer
This trial tests a combination of two drugs, enfortumab vedotin and pembrolizumab, to treat bladder cancer that has grown into the muscle of the bladder. The goal is to shrink or eliminate the cancer so that surgery to remove the bladder may not be needed.
Duarte, CaliforniaAges 18 years+ - NCT06469944RecruitingPhase 1/Phase 2
Study of drug combinations for stomach or esophagus cancer
This trial tests new combinations of drugs alongside standard chemotherapy for people with advanced stomach or esophagus cancer that has not been treated yet. It aims to see if these combinations can shrink tumors or slow down the cancer better than current options.
Los Angeles, CaliforniaAges 18 years+ - NCT06751329RecruitingPhase 1/Phase 2
Study of DM002 for advanced solid tumors
This trial tests a new drug called DM002 for people with advanced solid tumors that have not responded to standard treatments. The drug targets two proteins (MUC1 and HER3) found on some cancer cells, and may help shrink tumors or slow their growth.
San Francisco, CaliforniaAges 18 years+ - NCT05999994RecruitingPhase 2
Testing new drugs for children and young adults with cancer
This trial tests several experimental drugs for children and young adults with cancer. It aims to find safe and effective treatments by matching participants to one of several drug studies based on their cancer type and health.
Los Angeles, CaliforniaAges 1–39 - NCT04251052Recruiting
Compare two surgeries to lower ovarian cancer risk in BRCA1 carriers
This study compares two risk-reducing surgery plans for people with a BRCA1 genetic change to see which approach helps lower ovarian cancer risk. You may be asked to have the study procedure sooner or later depending on your chosen plan.
Antioch, CaliforniaAges 35–50 - NCT06966700RecruitingPhase 3
Study of Sac-TMT in Early High-Risk Breast Cancer
This study tests a new drug called Sacituzumab Tirumotecan (Sac-TMT) for people with early-stage, high-risk breast cancer that hasn't spread. The drug is given before surgery to see if it can shrink tumors and improve outcomes.
Burbank, CaliforniaAges 18 years+ - NCT06649812RecruitingPhase 2
Testing a combination targeted therapy (ViPOR) for aggressive B-cell lymphoma
This trial tests a new combination of targeted drugs called ViPOR for people with aggressive B-cell lymphoma that has come back or not responded to previous treatment. The goal is to see if this treatment can help when standard therapies haven't worked.
Los Angeles, CaliforniaAges 18 years+ - NCT06890598RecruitingPhase 3
Study of olomorasib for KRAS G12C-mutant lung cancer
This trial tests a new targeted therapy (olomorasib) combined with standard treatments for people with a specific type of non-small cell lung cancer that has a KRAS G12C mutation. Depending on the stage of your cancer, you may receive it before or after surgery, or along with chemotherapy and radiation.
Los Angeles, CaliforniaAges 18 years+ - NCT06393374RecruitingPhase 3
Study of a new drug combination for residual TNBC after initial treatment
This trial tests a new combination of two drugs (sacituzumab tirumotecan and pembrolizumab) compared to standard chemotherapy for people with triple-negative breast cancer that did not fully respond to initial treatment. It aims to see if this combination helps prevent cancer from coming back.
Fountain Valley, CaliforniaAges 18 years+ - NCT02555735Enrolling by invitation
Study of exceptional responders with solid tumors on chemotherapy
This study looks at people with solid tumor cancer (like many common carcinomas) to understand who responds exceptionally well to chemotherapy. You might be eligible if you are newly diagnosed or already receiving chemotherapy and can follow the study plan.
Los Angeles, CaliforniaAges 18 years+ - NCT05232916RecruitingPhase 3
Vaccine for HER2-positive breast cancer after standard treatment
This trial tests a vaccine (GLSI-100) that may help prevent the return of HER2-positive breast cancer. It is given to patients who still had cancer cells after initial treatment with trastuzumab, or who had stage III disease and achieved a complete response.
Duarte, CaliforniaAges 18–100 - NCT07114601RecruitingPhase 1
Study of LY4257496 for people with GRPR-positive solid tumors
This trial tests a new drug, LY4257496, in people with certain types of cancer that have a protein called GRPR on their cells. The study aims to see if the drug can help shrink tumors or slow the cancer's growth.
Duarte, CaliforniaAges 18 years+ - NCT04269902RecruitingPhase 3
Early treatment check for high-risk CLL/SLL
This Phase 3 trial studies an early treatment approach for people with high-risk CLL or SLL who have not yet needed standard therapy. It aims to see if treating earlier can improve outcomes while keeping side effects manageable.
Anaheim, CaliforniaAges 18 years+ - NCT07045103Recruiting
New imaging tool for faster lung cancer detection during bronchoscopy
This trial is testing a new imaging technology that uses artificial intelligence to help doctors quickly identify lung cancer during a standard bronchoscopy procedure. If you are scheduled for a lung biopsy to check for cancer, this study may help improve detection speed and accuracy.
San Diego, CaliforniaAges 22 years+ - NCT06736054RecruitingPhase 1
Testing a new PSMA imaging agent for prostate cancer
This trial tests a new radioactive imaging agent (61Cu-NODAGA-PSMA) to see if it can help find prostate cancer cells. It's for people with prostate cancer that shows up on a PSMA PET/CT scan.
Irvine, CaliforniaAges 18 years+ - NCT06647953RecruitingPhase 3
Testing a standard approach for pleuropulmonary blastoma, with or without topotecan
This trial compares a standard surgery and chemotherapy plan for type I pleuropulmonary blastoma (PPB) to adding the drug topotecan for types II and III PPB. The goal is to see if the extra drug helps shrink tumors and improve outcomes for children with more advanced disease.
Downey, CaliforniaAges Up to 21 years - NCT06436612RecruitingPhase 2
Study of radiation therapy for belly or pelvic sarcomas
This trial is testing a precise type of radiation therapy (called SBRT) for people with sarcoma in the belly or pelvic area. The goal is to see if this targeted radiation can help shrink or control the tumor before surgery, and it may be an option if you haven't had radiation to that area before.
Los Angeles, CaliforniaAges 12 years+ - NCT06179069RecruitingPhase 1
Study of ZL-1310 for small cell lung cancer
This trial tests a new drug called ZL-1310, alone or with other treatments, for people with small cell lung cancer that has spread (extensive-stage). It aims to see if ZL-1310 can help shrink tumors or slow the disease.
Duarte, CaliforniaAges 18 years+ - NCT06327685RecruitingPhase 1
Avapritinib and Decitabine for SM-AHN
This trial tests a combination of two drugs, avapritinib and decitabine, for people with systemic mastocytosis plus another blood cancer (SM-AHN). The goal is to see if the combination works better than either drug alone.
Palo Alto, 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
- University of California, San Francisco · 5 studies
- Cedars-Sinai Medical Center · 4 studies
- Kaiser Permanente-Oakland · 4 studies
- Children's Hospital Los Angeles · 3 studies
- City of Hope Orange County Lennar Foundation Cancer Center · 3 studies
- Providence Medical Foundation · 3 studies
- Providence Saint Joseph Medical Center/Disney Family Cancer Center · 3 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.