Clinical trials · California
Advanced Solid Tumor clinical trials in California
We’re tracking 297 recruiting advanced 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
- NCT05948865RecruitingPhase 1
Early trial drug for advanced solid tumors
This Phase 1 study tests CPO301 in adults with advanced or metastatic solid tumors that have worsened or cannot be treated with standard options. It aims to find the safest dose and understand how the treatment affects tumors, especially in certain lung cancer groups.
Santa Monica, CaliforniaAges 18 years+ - NCT05498428RecruitingPhase 2
Amivantamab for advanced lung cancer with EGFR mutations
This Phase 2 study tests amivantamab (an antibody medicine) in people with advanced or metastatic non-small cell lung cancer that has specific EGFR gene changes. It may help shrink tumors or control cancer when standard curative treatments aren’t possible.
Stanford, CaliforniaAges 18 years+ - NCT03715933RecruitingPhase 1
Test drug INBRX-109 for advanced or metastatic solid tumors
This Phase 1 trial tests INBRX-109, a cancer-targeting drug, in people whose solid cancers are locally advanced or spread to other parts of the body. Because it’s Phase 1, the main goal is to see whether it’s safe and how well it can work for different tumor types that meet specific requirements.
Beverly Hills, CaliforniaAges 12–85 - NCT07169734RecruitingPhase 1/Phase 2
ALE.P03 for advanced CLDN1-positive solid tumors
This trial tests a new drug, ALE.P03, for people with advanced or metastatic solid tumors that have a certain protein (CLDN1). The drug is given alone (monotherapy) to see if it can shrink tumors or slow their growth.
Los Angeles, 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+ - NCT05786924RecruitingPhase 1/Phase 2
Targeted cancer drug study for RAS/RAF mutation-positive tumors
This Phase 1/2 study tests S241656 (a targeted cancer medicine) in people whose cancers have certain “RAS/RAF” gene changes. It may help shrink tumors or control cancer growth, and also finds the safest dose and best way to use the drug.
Los Angeles, CaliforniaAges 18 years+ - NCT07020221RecruitingPhase 1/Phase 2
Study of VS-7375 for cancers with a KRAS G12D mutation
This study tests an experimental drug called VS-7375 for people with advanced solid tumors that have a specific genetic change called KRAS G12D. The goal is to see if the drug can shrink tumors or slow their growth.
Los Angeles, CaliforniaAges 18 years+ - NCT06682793RecruitingPhase 1/Phase 2
Study of A2B395 therapy for solid tumors with EGFR and HLA loss
This trial tests a new cell therapy called A2B395 for cancers that have EGFR, a protein on the cell surface, and have lost a specific marker called HLA-A*02. The therapy uses specially engineered immune cells to target and kill these cancer cells. This may help patients with colorectal, lung, head and neck, breast, kidney, or other solid tumors that are no longer responding to standard treatments.
Los Angeles, CaliforniaAges 18 years+ - NCT06051695RecruitingPhase 1/Phase 2
CAR T cell therapy for mesothelin-positive solid tumors
This trial tests a new type of immune cell therapy (CAR T-cells) designed to target cancer cells that have a protein called mesothelin but have lost a marker that lets them hide from the immune system. It's for people with advanced solid tumors who have already tried standard treatments.
Los Angeles, CaliforniaAges 18 years+ - NCT05176483RecruitingPhase 1
New drug combinations for advanced solid tumors
This trial tests a new drug called zanzalintinib, which may slow or shrink various types of advanced cancer. It is given together with other cancer treatments, and the study is looking at many different cancers including kidney, prostate, bladder, lung, liver, and more.
Palo Alto, CaliforniaAges 18 years+ - NCT04981119Recruiting
Test apheresis for CAR T manufacturing in HLA-A2 solid tumors
This trial studies how a process called apheresis is used to make CAR T cells for people with certain solid tumors. It is designed for tumors that have lost a specific immune marker (HLA-A*02), which may affect how well CAR T therapies work.
Santa Monica, CaliforniaAges 18 years+ - NCT06326411RecruitingPhase 1
Testing NST-628 pills for advanced solid tumors with RAS/MAPK changes
This trial tests an experimental pill called NST-628 for people with advanced solid tumors that have specific genetic changes in the RAS/MAPK pathway. The goal is to see if it is safe and effective when other treatments are no longer working.
Westwood, Los Angeles, CaliforniaAges 18 years+ - NCT06789172RecruitingPhase 1
New drug OKN4395 with or without pembrolizumab for solid tumors
This trial tests a new oral drug called OKN4395, which targets a COX2-related immune pathway, alone or with the immunotherapy pembrolizumab, in people with advanced solid tumors. It may be an option if you have certain types of cancer that have stopped responding to other treatments.
Beverly Hills, CaliforniaAges 18 years+ - 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+ - NCT03556228RecruitingPhase 1/Phase 2
Tested medicine for tumors with TrkA changes, alone or with pembrolizumab
This early-phase study tests VMD-928, a targeted cancer medicine, for cancers that have TrkA-related tumor changes. It may be given by itself or with pembrolizumab to see if it can shrink tumors when standard treatments have not worked.
Santa Rosa, CaliforniaAges 18–80 - NCT07109726RecruitingPhase 1/Phase 2
Testing TER-2013 for advanced tumors with AKT/PI3K/PTEN changes
This trial tests a new drug called TER-2013, alone or combined with another drug (fulvestrant), for people with advanced solid tumors that have specific genetic changes in the AKT/PI3K/PTEN pathway. It aims to see if the drug is safe and effective.
Irvine, CaliforniaAges 18 years+ - NCT07374848RecruitingPhase 1
Study of ZL-6201 for sarcoma and some solid tumors
This trial tests a new drug called ZL-6201 for people with sarcoma or certain solid tumors that have spread or cannot be removed. It aims to see if the drug is safe and helps shrink tumors.
Los Angeles, CaliforniaAges 18 years+ - NCT07218003Enrolling by invitationPhase 1
Study of RNDO-564 alone or with pembrolizumab for bladder cancer
This trial tests an experimental drug, RNDO-564, either by itself or combined with another drug (pembrolizumab), for people with advanced bladder cancer or other solid tumors that have stopped responding to standard treatments. The goal is to see if it can shrink tumors or slow cancer growth.
San Francisco, CaliforniaAges 18 years+ - NCT04300556RecruitingPhase 1/Phase 2
Testing an antibody-drug for advanced certain cancers
This early-phase trial tests a treatment called MORAb-202, an antibody “delivery” drug, to see if it’s safe and can help shrink or control certain advanced cancers. It may help people whose tumors match the study’s specific cancer types and prior treatment history.
Palo Alto, CaliforniaAges 18 years+ - NCT05691491RecruitingPhase 1/Phase 2
Temozolomide plus M1774 for advanced metastatic cancers
This Phase 1/2 trial tests a combination of temozolomide and M1774 to see how safe it is and whether it can help shrink advanced cancers that have spread. It focuses on certain tumor types and specific biomarker results, and it may be an option if standard treatments have been tried or aren’t possible.
Orange, CaliforniaAges 18 years+ - NCT06725758RecruitingPhase 1/Phase 2
First-in-human study of ODM-212 for advanced solid tumors
This study tests an experimental drug called ODM-212 for people with advanced solid tumors that have not responded to standard treatments. It may be especially relevant if your tumor has changes in the Hippo pathway (certain genes like NF2 or YAP/TAZ).
Orange, CaliforniaAges 18 years+ - NCT04678648RecruitingPhase 1
Testing RSC-1255 in advanced cancers with RAS changes
This early study (Phase 1) tests a new drug, RSC-1255, in people with advanced or metastatic cancers that have RAS mutations. It’s mainly focused on whether the treatment can be given safely and at what dose, and to see if it may shrink tumors.
Los Angeles, CaliforniaAges 18 years+ - NCT06975293RecruitingPhase 1/Phase 2
STC-15 with toripalimab for advanced cancers and sarcomas
This trial tests a new drug called STC-15, either alone or with another drug (toripalimab), for people with certain advanced cancers or sarcomas that have progressed after prior treatment. The goal is to see if this combination or single drug can help shrink tumors or slow the disease.
San Francisco, 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+
Advanced Solid Tumor trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting advanced solid tumor studies listed above.
- City of Hope · 4 studies
- University of California, San Francisco · 3 studies
- USC Norris Comprehensive Cancer Center · 3 studies
- Cedars-Sinai Medical Center · 2 studies
- Sarcoma Oncology Center · 2 studies
- Stanford Cancer Institute · 2 studies
- Stanford University · 2 studies
- UC Irvine Health/Chao Family Comprehensive Cancer Center · 2 studies
What taking part in a advanced 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.
Advanced Solid Tumor trials in other states
Common questions
- Are there advanced solid tumor clinical trials in California?
- Yes. We're currently tracking 297 recruiting advanced 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 advanced 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 advanced 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 advanced 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.