Clinical trials · California
Solid Tumor clinical trials in California
We’re tracking 333 recruiting solid tumor 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
- NCT07216105RecruitingPhase 1
New immune cell treatment for advanced solid tumors
This trial tests a new treatment using specially engineered immune cells (called FT836) for people with advanced solid tumors that have not responded to other treatments. It may be given alone or with chemotherapy and/or other antibody medicines. The study aims to see if this approach can shrink tumors or slow their growth.
La Jolla, CaliforniaAges 18 years+ - 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+ - 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+ - NCT07145255RecruitingPhase 1/Phase 2
Study of MBRC-201 for advanced solid tumors
This trial tests a new drug, MBRC-201, for people with advanced solid tumors that have not responded to standard treatments. The goal is to find the best dose and see if it helps shrink tumors or slow their growth.
San Francisco, 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+ - NCT07085091RecruitingPhase 1
Study of ALX2004 for advanced solid tumors
This trial tests a new drug, ALX2004, for people with certain advanced cancers (head and neck, lung, esophagus, or colorectal) that have stopped responding to standard treatments. The goal is to see if the drug is safe and effective.
La Jolla, CaliforniaAges 18 years+ - NCT05970497RecruitingPhase 1/Phase 2
KB707 trial for advanced solid tumors after other treatments
This early-stage trial tests KB707 in people with locally advanced or metastatic solid tumors that have not responded well to standard treatments. If you qualify, you may receive KB707 to see how well it can shrink tumors or control the disease.
Rancho Santa Margarita, CaliforniaAges 18 years+ - NCT07020117RecruitingPhase 1
Study of AKY-1189 for advanced solid tumors
This trial tests a new radioactive drug, AKY-1189, for people with solid tumors that have spread or cannot be removed. It may help if other treatments have stopped working.
Irvine, 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+ - 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+ - NCT06956690RecruitingPhase 1/Phase 2
Testing HMBD-501 for HER3-positive advanced solid tumors
This trial tests a new drug, HMBD-501, for people with advanced solid tumors that have a specific protein called HER3. The goal is to see if the drug is safe and if it can help shrink or control the cancer.
La Jolla, CaliforniaAges 18 years+ - NCT06941272RecruitingPhase 1/Phase 2
Study of patritumab deruxtecan for children with hard-to-treat solid tumors
This trial tests a new drug, patritumab deruxtecan, in children and adolescents whose rhabdomyosarcoma or hepatoblastoma has returned or not responded to at least one prior treatment. The goal is to see if the drug can shrink tumors or stop them from growing.
Los Angeles, CaliforniaAges 1 month–17 years - NCT06917079RecruitingPhase 1
BBO-11818 for KRAS-mutated cancers
This trial tests a new oral drug (BBO-11818) for people with solid tumors that have a specific KRAS mutation. It's for those whose cancer has spread or cannot be removed by surgery and who have not had other cancers recently.
Sacramento, CaliforniaAges 18 years+ - NCT05768269Recruiting
Follow-up study for people previously treated with cellular therapy
This trial follows up with people who already received a Century Therapeutics cellular therapy treatment. It mainly checks how you’re doing over time and whether the treatment has lasting effects.
Los Angeles, CaliforniaAges 18 years+ - NCT06884618RecruitingPhase 1
Study of a new drug for advanced solid tumors with RAS mutations
This trial is testing an experimental drug for people whose cancer has spread and has a specific gene change called RAS. The study aims to see if the drug is safe and helps shrink tumors.
Duarte, CaliforniaAges 18 years+ - NCT06887348Recruiting
Long-term safety study for prior RP1, RP2, or RP3 patients
This study checks the long-term safety of patients who have already received RP1, RP2, or RP3 treatment in a previous study. It helps doctors understand any side effects that may appear over time.
La Jolla, 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+ - NCT06796907RecruitingPhase 1/Phase 2
Mocertatug rezetecan with other drugs for advanced solid tumors
This trial tests a new drug, mocertatug rezetecan, combined with other anti-cancer therapies for people with advanced solid tumors like endometrial or ovarian cancer. It aims to see if the combination is safe and effective.
La Jolla, CaliforniaAges 18 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+ - NCT06747585RecruitingPhase 1/Phase 2
ALE.P02 for advanced squamous cell cancers with CLDN1
This trial tests a new drug called ALE.P02 for people with advanced squamous cell cancers (like lung, head and neck, esophagus, or skin cancer) that have a certain protein called CLDN1. The drug is given alone and aims to shrink or stop the cancer.
Fullerton, CaliforniaAges 18 years+ - NCT06736379RecruitingPhase 1
Injected immune therapy for head and neck cancer
This trial tests an experimental treatment that is injected directly into the tumor to stimulate your immune system to fight the cancer. It is for people with head and neck cancer who have not been helped by prior treatments or who are scheduled for surgery.
Stanford, CaliforniaAges 18 years+ - NCT06730347RecruitingPhase 2
Study of lorigerlimab for advanced ovarian and other cancers
This trial tests a new drug, lorigerlimab, for people with certain types of ovarian cancer or related cancers that have come back or not responded to treatment. The goal is to see if the drug can help shrink tumors or slow the disease.
Los Angeles, CaliforniaAges 18 years+ - NCT06710756RecruitingPhase 1/Phase 2
Lead-212 therapy for solid tumors
This trial tests a new radioactive drug, Lead-212 PSV359, for people with advanced solid tumors that have not responded to standard treatments. The drug is designed to find and attack cancer cells.
Los Angeles, CaliforniaAges 18–90 - NCT05394103RecruitingPhase 1/Phase 2
Testing a targeted pill for hard-to-treat solid tumors
This trial tests a new medicine (Q901) that targets a specific cell-control pathway to treat advanced cancers that have stopped responding to standard care. It’s mainly for people with certain solid tumor cancers, aiming to see whether the drug can shrink tumors or control disease.
Los Angeles, 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 · 4 studies
- University of California, Los Angeles (UCLA) · 3 studies
- City of Hope · 2 studies
- Hoag Memorial Hospital Presbyterian · 2 studies
- UC San Diego Moores Cancer Center · 2 studies
- University of Southern California · 2 studies
- ALX Center 11
- ALX Center 9
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.