Clinical trials · California
Solid Tumor Cancer clinical trials in California
We’re tracking 316 recruiting solid tumor cancer studies with a site in California — including Phase 1, Phase 1/Phase 2 and Phase 2 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT06480552RecruitingPhase 1
Testing a new drug for advanced solid tumors
This trial tests an experimental drug (TEV‑56278) alone or with another drug (pembrolizumab) for people with advanced solid tumors that have not responded to standard treatments. The goal is to find a safe dose and see if it helps shrink tumors.
Los Angeles, CaliforniaAges 18 years+ - NCT06352359RecruitingPhase 1
Study of ONC 841 for advanced solid tumors
This phase 1 study tests an experimental drug called ONC 841 for people with advanced solid tumors that have not responded to other treatments. The trial aims to find a safe dose and see if the drug can shrink tumors.
Sacramento, CaliforniaAges 18 years+ - NCT06253130RecruitingPhase 1/Phase 2
Study of IMP1734 for Advanced Solid Tumors with HRR Mutations
This trial tests a new drug called IMP1734 for people with advanced breast, ovarian, or prostate cancer that has a specific genetic change called an HRR mutation. The drug targets a protein called PARP1 to try to stop cancer cells from repairing themselves.
San Diego, CaliforniaAges 18–89 - NCT06251310RecruitingPhase 1
Testing SW-682 in Advanced Solid Tumors
This trial tests a new drug (SW-682) for people with advanced solid tumors that have stopped responding to standard treatments. It focuses on cancers with specific gene changes (NF2 or Hippo pathway) and aims to see if the drug can shrink tumors or slow their growth.
Los Angeles, CaliforniaAges 18 years+ - NCT06241456RecruitingPhase 1
Experimental CAR-T cells targeting HER2 for advanced solid tumors
This trial tests an experimental 'off-the-shelf' CAR-T cell therapy (called FT825/ONO-8250) that targets a protein called HER2 found on some solid tumors. It may be given alone or with other antibodies to help fight advanced cancer that has not responded to standard treatments.
La Jolla, CaliforniaAges 18 years+ - NCT06233942RecruitingPhase 1
Testing a new drug for advanced solid tumors
This early-phase trial tests a new drug called BG-C9074, either alone or with other cancer treatments, for people with certain advanced solid tumors that have not responded to standard therapy. The goal is to see if it is safe and effective.
Los Angeles, CaliforniaAges 18 years+ - NCT06047379RecruitingPhase 1/Phase 2
Testing NEO212 for brain tumors and metastases
This trial tests a new drug called NEO212 for people with certain brain tumors (like astrocytoma or glioblastoma) or cancer that has spread to the brain from other parts of the body. The goal is to see if it is safe and if it can help shrink or control the tumors.
Glendale, CaliforniaAges 18 years+ - NCT06010342RecruitingPhase 2
TL118 for solid tumors with NTRK fusion
This trial tests an experimental pill called TL118 for people whose solid tumors have a specific NTRK gene fusion. It aims to see if the drug can shrink tumors or slow their growth when other treatments have stopped working or aren't an option.
Glendale, CaliforniaAges 18 years+ - NCT05914116RecruitingPhase 1/Phase 2
Early study of DB-1311 with BNT324 for advanced solid tumors
This Phase 1/2a study tests a combination treatment (DB-1311 with BNT324) in people with advanced or metastatic solid cancers that have grown despite standard treatments. It aims to find a safe dose and look for signs the treatment can shrink tumors or slow growth.
Los Angeles, 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+ - NCT05785741RecruitingPhase 1/Phase 2
DB-1310 for advanced solid tumors after standard treatment fails
This early-phase study tests DB-1310 in people with advanced or metastatic solid cancers that have come back or worsened after standard treatments. It aims to find the safest dose and whether it can help shrink tumors or slow cancer growth.
Santa Monica, CaliforniaAges 18 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+ - 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+ - NCT05377996RecruitingPhase 1/Phase 2
Study drug for advanced solid tumors with tumor tissue testing
This early-stage study tests emiltatug leda-dotin (Emi-Le) in people with advanced or recurring solid cancers. It aims to see how the drug works and how safely it can be given, using tumor tissue testing to help understand who may benefit.
Orange, 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+ - 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+ - 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+ - NCT07488676RecruitingPhase 1/Phase 2
Study of ASP546C for stomach, pancreas, and other cancers
This trial tests a new drug called ASP546C in people with certain advanced cancers that have a specific marker (CLDN18.2). It aims to see if the drug can shrink or slow tumor growth.
Los Angeles, CaliforniaAges 18 years+ - NCT06069570RecruitingPhase 1
Gamma delta T cells and low dose radiation for advanced lung or bone cancer
This trial tests a new type of immune cell called gamma delta T cells combined with low-dose radiation to treat people with advanced lung cancer or solid tumors that have spread to the bone. It is only for patients who have already tried standard treatments and either didn't get better or couldn't tolerate them.
Beverly Hills, 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 - NCT07318805RecruitingPhase 1
A study of PF-08032562 for advanced solid tumors
This study tests a new medicine, PF-08032562, for people with advanced breast or colorectal cancer that has not responded to prior treatments. It aims to see if the drug is safe and can help shrink or slow the cancer.
Duarte, CaliforniaAges 18 years+
Solid Tumor Cancer trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting solid tumor cancer studies listed above.
- University of California, Davis Comprehensive Cancer Center · 3 studies
- UCSF Helen Diller Family Comprehensive Cancer Center · 2 studies
- University of California, Los Angeles · 2 studies
- University of California, San Francisco · 2 studies
- University of Southern California · 2 studies
- # 1019, UCLA, Westwood Cancer Center
- #1025, University of California San Francisco
- 001
What taking part in a solid tumor 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.
Solid Tumor Cancer trials in other states
Common questions
- Are there solid tumor cancer clinical trials in California?
- Yes. We're currently tracking 316 recruiting solid tumor 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 solid tumor 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 solid tumor 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 solid tumor 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.