Clinical trials · California
Solid Tumor clinical trials in California
We’re tracking 328 recruiting solid tumor studies with a site in California — including Early Phase 1, Phase 1, Phase 1/Phase 2, Phase 2 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT03486873RecruitingPhase 3
Study extension for people on pembrolizumab, testing long-term safety
This trial follows people with advanced tumors who are already on pembrolizumab (or similar treatment) to check long-term safety and effectiveness. It may help your care team by monitoring benefits and side effects over a longer period.
Bakersfield, CaliforniaAges 18 years+ - NCT07628634RecruitingEarly Phase 1
Testing a Low-Methionine Diet in Solid Tumor Patients
This early-stage study explores whether eating a diet low in methionine (a natural amino acid found in protein) might help people with advanced solid tumors. Researchers will track how this dietary change affects blood levels and may improve treatment outcomes alongside standard cancer care.
Orange, CaliforniaAges 18 years+ - NCT06605404Recruiting
Pan-tumor study of a blood test after cancer surgery
This study is testing a new blood test that looks for leftover cancer cells after surgery. It is for people with different types of solid tumors who are planning to have surgery to cure their cancer. The goal is to see if the test can help guide future treatment decisions.
San Diego, CaliforniaAges 18 years+ - NCT06943521RecruitingPhase 1/Phase 2
Study of MT-4561 for advanced solid tumors
This trial tests a new drug called MT-4561 in people with advanced solid tumors that have not responded to prior treatments. It aims to see if the drug can help shrink tumors or slow their growth.
Los Angeles, CaliforniaAges 18 years+ - NCT07246863RecruitingPhase 2
Testing visugromab and nivolumab with or without docetaxel for advanced lung cancer
This trial tests a new combination of drugs (visugromab, nivolumab, and possibly docetaxel) for people with advanced non-squamous non-small cell lung cancer that worsened after one prior treatment with an immunotherapy. The goal is to see if the combination helps control the cancer better.
Los Angeles, CaliforniaAges 18 years+ - NCT05985655RecruitingPhase 1/Phase 2
Study of GTAEXS617 for advanced solid tumors
This trial tests a new drug called GTAEXS617 for adults with certain advanced solid tumors that have not responded to standard treatments. It aims to see if the drug is safe and effective.
Los Angeles, CaliforniaAges 18 years+ - 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+ - 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+ - NCT06227377RecruitingPhase 1
A new drug for cancers with KRAS G12D mutation
This trial tests a new drug called QTX3034 in people whose cancer has a specific genetic change called KRAS G12D. The drug aims to block the mutated protein that helps cancer grow, and may work even if other treatments have stopped working.
Los Angeles, CaliforniaAges 18 years+ - NCT07522073RecruitingPhase 3
Chemotherapy with or without KRAS inhibitor for pancreatic cancer
This study tests whether adding a new drug called INCB161734 to standard chemotherapy helps people with advanced pancreatic cancer that has a specific genetic change (KRAS G12D mutation). You would be randomly assigned to receive either chemotherapy alone or chemotherapy plus the new drug.
Duarte, CaliforniaAges 18 years+ - NCT06436157Recruiting
Genetic testing support through a nurse-led program
This study tests whether a special program led by oncology nurses can help more people with solid tumor cancers get genetic testing. If you are starting a new treatment and have not had genetic testing before, this program may help you learn about your cancer risks and treatment options.
Chico, CaliforniaAges 18 years+ - NCT04142437Recruiting
Tracking how larotrectinib works for NTRK fusion cancers in routine care
This study follows people with cancers that have an NTRK gene fusion to learn how safe and effective larotrectinib is during everyday treatment. It may help confirm whether this medicine works well in real-world patients and side effects stay manageable.
Los Angeles, CaliforniaAges Any age - NCT07192432RecruitingPhase 1/Phase 2
Gene therapy for HER2-positive cancer
This trial tests a new gene therapy for people with HER2-positive cancer. It is for two groups: those with advanced cancer that has worsened after treatment, and those with early-stage cancer at high risk of coming back. The goal is to see if the therapy can safely help shrink tumors or prevent return.
Los Angeles, CaliforniaAges 18 years+ - NCT06827613RecruitingPhase 1/Phase 2
Study of invikafusp alfa plus sacituzumab govitecan for advanced solid tumors
This trial tests a new drug combination for people with advanced breast cancer (triple-negative or hormone receptor-positive). The goal is to see if the combination helps shrink tumors or slow their growth.
Los Angeles, CaliforniaAges 18 years+ - NCT05410145RecruitingPhase 1/Phase 2
Study drug for advanced KRAS G12C solid tumors
This trial tests D3S-001 (alone or with other treatments) in people with advanced solid cancers that have a KRAS G12C mutation. It’s mainly aimed at early safety and learning whether the treatment can shrink or control tumors.
Palo Alto, CaliforniaAges 18 years+ - NCT07277413RecruitingPhase 1
Study of IDE892 for advanced solid tumors with MTAP deletion
This study tests a new drug called IDE892, alone or in combination, for people with advanced solid tumors that have a specific genetic change (MTAP deletion). The goal is to see if the drug is safe and whether it can shrink tumors.
Santa Rosa, 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.
Duarte, CaliforniaAges 18 years+ - NCT04657068RecruitingPhase 1/Phase 2
Study of ART0380 for advanced solid tumors
This study tests a new drug called ART0380 for people with advanced solid tumors that have not responded to standard treatments. It may be especially helpful for those with certain DNA repair gene changes (like ATM or BRCA). The drug will be given alone or with chemotherapy (gemcitabine or irinotecan) depending on the part of the trial.
Los Angeles, CaliforniaAges 18 years+ - NCT05503797RecruitingPhase 2
Study of FORE8394 for cancers with BRAF changes
This trial tests a new drug, FORE8394, for people whose cancers have a change in the BRAF gene. It may be an option if you have a solid tumor or brain tumor that has not responded to other treatments.
Beverly Hills, CaliforniaAges 8 years+ - NCT06395103RecruitingPhase 1/Phase 2
Zilovertamab vedotin for blood cancers and solid tumors
This trial tests a new drug called zilovertamab vedotin for children and young adults with certain blood cancers or solid tumors. The drug is designed to target and kill cancer cells, and the study will see if it is safe and effective.
Los Angeles, CaliforniaAges 6 months–25 years - NCT06771219RecruitingPhase 1
Testing SLV-154 for advanced cancers
This trial tests a new drug called SLV-154 for people whose advanced cancer has not responded to standard treatments. The goal is to see if SLV-154 can shrink tumors or slow cancer growth.
Newport Beach, CaliforniaAges 12 years+ - NCT07719361RecruitingPhase 1
New drug for advanced, treatment-resistant prostate cancer
This study tests an experimental drug for men whose prostate cancer has spread and stopped responding to standard hormone therapies. It may be an option if your PSA is rising despite treatment with drugs like enzalutamide or abiraterone.
Los Angeles, CaliforniaAges 18 years+ - NCT05797168RecruitingPhase 1/Phase 2
Early study drug for advanced solid tumors, alone or with another drug
This Phase 1/2 study tests a new AstraZeneca cancer drug (AZD5335) to see how safely it can be given and how well it works in people with advanced solid tumors. You may get it alone or with another treatment, and you’ll need to provide tumor information (sometimes including a biopsy) for study planning.
Duarte, CaliforniaAges 18–130 - NCT06131840RecruitingPhase 1
Study of SGN-CEACAM5C for advanced solid tumors
This trial tests a new drug called SGN-CEACAM5C in people with advanced solid tumors that have not responded to other treatments. The drug targets a protein on cancer cells to try to stop them from growing.
Duarte, CaliforniaAges 18 years+
Solid Tumor trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting solid tumor studies listed above.
- USC / Norris Comprehensive Cancer Center · 6 studies
- Providence Medical Foundation · 3 studies
- University of California, Irvine Medical Center / UC Irvine Health · 3 studies
- University of California, Los Angeles (UCLA) · 3 studies
- City of Hope Comprehensive Cancer Center · 2 studies
- Hoag Memorial Hospital Presbyterian · 2 studies
- University of California, Davis Medical Center · 2 studies
- Avenzo Therapeutics
What taking part in a solid tumor 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.
Solid Tumor trials in other states
Common questions
- Are there solid tumor clinical trials in California?
- Yes. We're currently tracking 328 recruiting solid tumor 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 solid tumor 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 solid tumor 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 solid tumor 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.