Clinical trials · California
Solid Tumor clinical trials in California
We’re tracking 333 recruiting solid tumor studies with a site in California — including Early Phase 1, Phase 1 and Phase 1/Phase 2 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT05741242Enrolling by invitationPhase 1/Phase 2
Vaccine trial using customized immune targets for solid tumors
This trial tests a personalized cancer vaccine made from synthetic long peptide “neoantigens,” aiming to be safe and help the immune system fight certain solid tumors. It may fit people with pancreatic cancer after starting first-line chemotherapy, and some other solid tumors with limited options.
San Francisco, CaliforniaAges 12 years+ - NCT05684965RecruitingPhase 1/Phase 2
Study drug for advanced solid cancers after standard treatments
This Phase 1/2 trial tests XTX301, a study treatment, in people with advanced solid tumors (cancers) that have already been treated and are not controlled by standard options. It may help if your cancer matches one of the study groups and you meet safety and test-tissue requirements.
Sacramento, CaliforniaAges 18 years+ - NCT05592626RecruitingPhase 1/Phase 2
T cell activator STAR0602 for advanced solid tumors
This study tests an experimental drug called STAR0602 that aims to boost your immune system's T cells to fight advanced solid tumors. It's for patients whose cancer has not responded to standard treatments or for whom such treatments are not suitable.
Sacramento, CaliforniaAges 18 years+ - NCT05599048RecruitingPhase 1/Phase 2
MRI scan using a special sugar to study solid tumors
This early-phase study tests whether a special MRI scan with injected labeled “pyruvate” can act as a biomarker (a measurable sign) for advanced solid tumor activity. It may help doctors see tumor metabolism over time and better track how treatment is affecting cancer.
San Francisco, CaliforniaAges 18 years+ - NCT05533697RecruitingPhase 1/Phase 2
mRNA medicine with or without immunotherapy for advanced solid cancers
This Phase 1/2 study tests an mRNA vaccine (mRNA-4359) either alone or combined with an immune checkpoint antibody (immunotherapy). It’s for people with advanced solid tumors to see if it can shrink tumors and how safe it is.
Los Angeles, CaliforniaAges 12 years+ - NCT05434234RecruitingPhase 1/Phase 2
Study drug YL201 for advanced solid tumors
This trial tests YL201 in people with advanced (late-stage) solid cancers when usual treatments don’t work or can’t be tolerated. The study looks at how the treatment is given, how safe it is, and how well it can shrink tumors.
Fair Oaks, CaliforniaAges 18 years+ - NCT05405595RecruitingPhase 1/Phase 2
Study drug with pembrolizumab for advanced solid tumors
This early-stage trial tests a new investigational drug (ADG126) combined with pembrolizumab in people with advanced or metastatic solid tumors. It aims to find a safe dose and see whether the combination can shrink tumors.
Irvine, CaliforniaAges 18 years+ - NCT05329103RecruitingPhase 1
Test drug PEEL-224 in advanced solid tumor cancers
This Phase 1 study tests PEEL-224 in people whose solid tumors are advanced and have not responded to standard treatments (or have no approved standard option). It focuses on safety and early signs of whether the drug can help shrink tumors.
Palo Alto, CaliforniaAges 18 years+ - NCT05038150RecruitingPhase 1/Phase 2
Early-stage drug study for advanced cancers that stopped responding
This Phase 1/2 trial tests SGN1 in people with advanced solid tumors whose cancer has grown despite standard treatments, or who could not tolerate them. The study aims to find a safe dose and see whether the drug can work in certain cancer types.
Orange, CaliforniaAges 18–75 - NCT04855656RecruitingPhase 1
Lunresertib for advanced solid tumors with specific gene changes
This early-phase trial tests lunresertib alone or with other study drugs in people with advanced solid tumors that have certain tumor gene changes. It aims to see whether the treatment is safe and whether it can help shrink or control cancer.
Los Angeles, CaliforniaAges 12 years+ - NCT03526835RecruitingPhase 1/Phase 2
Study of MCLA-158 for advanced solid tumors
This trial tests a new experimental drug called MCLA-158 (petosemtamab) for people with advanced solid tumors, especially head and neck cancer or colorectal cancer, that have not responded to standard treatments. The study aims to see if this drug can shrink tumors or slow their growth.
San Diego, CaliforniaAges 18 years+ - NCT06440005RecruitingPhase 1
Testing AGX101 for advanced solid tumors
This study tests a new drug called AGX101 for people with advanced solid tumors that have not responded to other treatments. The goal is to see if it is safe and if it can shrink tumors or slow their growth.
Los Angeles, CaliforniaAges 18 years+ - NCT06190886RecruitingPhase 1
First-in-human study of PTX-912 for advanced solid tumors
This trial tests a new drug called PTX-912 for people with advanced or metastatic solid tumors that have not responded to standard treatments. It is a first-in-human study, meaning this is the first time PTX-912 is being given to people, to see how safe it is and how well it works.
Duarte, CaliforniaAges 18 years+ - NCT06824363RecruitingEarly Phase 1
Intra-tumor injection study for stomach and esophagus cancer with ARID1a mutation
This trial tests a new approach where immune cells are injected directly into the tumor in people with a specific genetic change (ARID1a mutation) in their stomach or esophagus cancer. It aims to see if this treatment can help when used before any other cancer therapy.
Orange, CaliforniaAges 18 years+ - NCT06667141RecruitingPhase 1/Phase 2
Study of ACR-2316 for advanced solid tumors
This trial is testing an experimental drug called ACR-2316 for people with certain advanced solid tumors that have not responded to standard treatments. The study aims to see if the drug can shrink tumors or slow their growth.
Beverly Hills, CaliforniaAges 18 years+ - NCT06431594RecruitingPhase 1
Study of a new drug for advanced solid tumors
This trial tests a new drug called Mocertatug Rezetecan for people with advanced solid tumors that have stopped responding to standard treatments. It targets a protein called B7-H4 on cancer cells to try to slow or shrink the tumor.
Fountain Valley, CaliforniaAges 18 years+ - NCT06349408RecruitingPhase 1
Testing IBI3001 for advanced solid tumors
This trial tests a new drug called IBI3001 for people with advanced solid tumors that have not responded to other treatments. The goal is to see if it is safe and effective against different types of cancer.
Los Angeles, CaliforniaAges 18 years+ - NCT06115642Enrolling by invitationPhase 1
Study of HLX43 for advanced solid tumors
This trial tests a new drug called HLX43 for people with advanced or metastatic solid tumors that have not responded to standard treatments. It aims to find safe dosing and understand how the drug works in the body.
Stanford, CaliforniaAges 18–75 - NCT05768139RecruitingPhase 1/Phase 2
Testing a new targeted drug for advanced solid tumors with PI3Kα mutation
This trial tests tersolisib, a new targeted medicine, in adults with advanced or hard-to-remove solid cancers. It focuses on tumors that have a specific genetic change (PI3Kα mutation) to see how well the treatment works and what side effects it causes.
Los Angeles, CaliforniaAges 18 years+ - NCT05732831RecruitingPhase 1/Phase 2
Study drug for tumors with MTAP loss
This Phase 1/2 trial tests TNG462 (with or without pembrolizumab, depending on the plan) in solid tumors that have lost MTAP. The goal is to check safety and learn whether the treatment can help people with these specific tumor changes.
Palo Alto, CaliforniaAges 18 years+ - NCT02215928Recruiting
Using tumor genetic tests to guide treatment choices
This study looks at your tumor’s genetic information to help doctors recommend treatment for cancers that have spread. It may help you get the most suitable therapy based on what’s found in your tumor.
Palo Alto, CaliforniaAges 18 years+ - NCT07383506RecruitingPhase 1
Study of a targeted pill for PIK3CA-mutated advanced cancers
This trial tests a new pill (CGT6297) that targets cancer cells with a specific PIK3CA gene change. It may be an option for people with certain advanced solid tumors, including endometrial or breast cancer, after standard treatments have stopped working.
Los Angeles, CaliforniaAges 18 years+ - NCT07335497RecruitingPhase 1/Phase 2
Experimental drug CR-001 for advanced solid tumors
This trial tests an experimental drug called CR-001 in people with advanced solid tumors that have stopped responding to standard treatments. The goal is to see if CR-001 can slow or stop tumor growth.
Los Angeles, CaliforniaAges 18 years+ - NCT07205718RecruitingPhase 1/Phase 2
Study of TAK-188 for advanced solid tumors
This trial tests a new medicine, TAK-188, for people with certain advanced cancers that have not responded to standard treatments. The goal is to see if it can help shrink or slow the growth of the cancer.
Santa Monica, 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.
- Stanford University · 3 studies
- City of Hope · 2 studies
- Precision NextGen Oncology & Research Center · 2 studies
- University of California, Davis Comprehensive Cancer Center · 2 studies
- USC Norris Comprehensive Cancer Center · 2 studies
- # 1019, UCLA, Westwood Cancer Center
- #1025, University of California San Francisco
- 001
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 333 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.