Clinical trials · California
Solid Tumor, Adult clinical trials in California
We’re tracking 81 recruiting solid tumor, adult 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
- NCT06526819RecruitingPhase 1/Phase 2
New drug SMP-3124LP for advanced solid tumors
This trial tests a new drug called SMP-3124LP for people with advanced solid tumors that no longer respond to standard treatments. It is given in two phases: first to find the best dose (dose escalation) and then to see how well it works in specific cancer types (dose expansion).
Los Angeles, CaliforniaAges 18 years+ - NCT04219254RecruitingPhase 1/Phase 2
Testing BI-1206 with pembrolizumab for advanced solid cancers
This early-phase trial studies BI-1206 together with pembrolizumab to treat advanced solid tumors. It may be an option if your cancer has progressed after prior anti–PD-1/PD-L1 treatment (or, in some groups, if standard treatments aren’t suitable).
Los Angeles, 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+ - NCT07205718RecruitingPhase 1/Phase 2
TAK-188 for advanced solid tumors after immunotherapy
This trial tests a new medication called TAK-188 for people with certain advanced solid tumors that have not responded to standard therapies, including checkpoint inhibitors. It aims to see if TAK-188 can help shrink or control the cancer.
Santa Monica, 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+ - NCT06265727RecruitingPhase 1/Phase 2
Study of CRB-701 for solid tumors with nectin-4
This trial tests a new drug, CRB-701, for people with advanced solid tumors that have a protein called nectin-4 on their surface. It might be an option if other treatments have stopped working or are not available.
San Diego, CaliforniaAges 18 years+ - NCT04412616RecruitingPhase 1
Study drug for advanced EGFR-positive solid tumors
This early-phase trial tests a new drug (ZZ06) in adults with advanced solid cancers that have an EGFR “positive” tumor test result. It’s for people whose cancer has grown despite standard treatment or who don’t have a standard option.
Los Angeles, CaliforniaAges 18 years+ - NCT07396584RecruitingPhase 1/Phase 2
HMPL-A580 for advanced or metastatic solid tumors
This trial tests a new drug called HMPL-A580 in people with advanced or metastatic solid tumors that cannot be removed by surgery. The goal is to see if it is safe and effective.
Orange, CaliforniaAges 18 years+ - NCT07436728RecruitingPhase 1/Phase 2
Study of TAK-505 for adults with solid tumors
This trial tests TAK-505, an experimental drug, for people with advanced solid tumors including lung, colorectal, stomach, or head and neck cancers. It aims to see if the drug can help when standard treatments are no longer working or aren't suitable.
Orange, CaliforniaAges 18 years+ - NCT06885281RecruitingPhase 1/Phase 2
Study of ZL-1310 for neuroendocrine carcinoma
This trial is testing an experimental drug called ZL-1310 for people with neuroendocrine carcinoma (a rare, fast-growing cancer) that has spread or can't be removed. It aims to see if the drug is safe and works against the cancer.
San Francisco, CaliforniaAges 18 years+ - NCT06532565RecruitingPhase 1
Study of GS-2121 alone or with other drugs for advanced solid tumors
This trial tests a new drug, GS-2121, given alone or with other therapies, for adults with advanced solid tumors that have stopped responding to standard treatments. The goal is to see if it is safe and effective.
Palo Alto, CaliforniaAges 18 years+ - NCT05007782RecruitingPhase 1
Testing a new immune drug for advanced solid tumors
This Phase 1 study tests denikitug (GS-1811) alone or with zimberelimab in adults with advanced solid tumors. It’s looking mainly at safety and how the treatment works in people whose cancer has already been treated—or is not treatable with standard options.
Palo Alto, CaliforniaAges 18 years+ - NCT06554795RecruitingPhase 1/Phase 2
Testing DB-1419 for advanced solid tumors
This trial tests a new drug called DB-1419 for people with advanced solid tumors that have not responded to other treatments. It is designed to target a protein called B7-H3 on cancer cells, and may help shrink tumors or slow their growth.
Los Angeles, CaliforniaAges 18 years+ - NCT07193511RecruitingPhase 1/Phase 2
A new drug for advanced bladder and other solid tumors
This trial tests a new drug, AVZO-103, alone or with other treatments, for people with advanced bladder cancer or certain other solid tumors. It aims to find out if the drug is safe and effective.
San Francisco, CaliforniaAges 18 years+ - NCT05382559RecruitingPhase 1
Study drug for advanced cancers with KRAS G12D mutation
This Phase 1 trial tests ASP3082 in adults with advanced or metastatic solid tumors that have a KRAS G12D mutation. It may help people whose standard targeted treatments are no longer working, or who cannot receive standard approved therapies.
Duarte, CaliforniaAges 18 years+ - NCT03686124RecruitingPhase 1/Phase 2
Tested immune therapy for certain HLA-A2 positive solid tumors
This trial studies an immune-based cancer treatment (IMA203/IMA203CD8) either alone or with nivolumab in people whose solid tumors have come back or will not respond to standard care. It may help by training the immune system to recognize and attack tumor cells that match the trial’s test requirements.
Stanford, CaliforniaAges 18 years+ - NCT04094610RecruitingPhase 1/Phase 2
Repotrectinib for kids with certain cancer gene changes
This early-phase study tests repotrectinib, a targeted medicine, in children and young adults whose tumors have specific gene changes involving ROS1 or NTRK. It may help shrink advanced cancers that carry these gene alterations.
Los Angeles, CaliforniaAges Up to 25 years - NCT04282044RecruitingPhase 1
CRX100 drug trial for advanced cancers with or without pembrolizumab
This Phase 1 trial tests CRX100 (a new cancer medicine) alone and with pembrolizumab (an immune checkpoint drug) in people with advanced solid tumors. It’s mainly designed to check safety and side effects, and to see whether tumors respond, potentially helping people whose cancer has come back or stopped responding to standard treatment.
Stanford, CaliforniaAges 18 years+ - NCT04621435RecruitingPhase 1
PET imaging test for solid tumors using FAP-2286
This Phase 1 study tests a special imaging scan (using FAP-2286) to see solid tumors in people who have already been diagnosed. It may help doctors better detect where cancer is in the body and how to plan treatment.
San Francisco, CaliforniaAges 18 years+ - NCT04665206RecruitingPhase 1/Phase 2
Testing VT3989 for certain advanced cancers
This early-stage trial tests VT3989 in people with specific advanced (metastatic or unresectable) cancers. It may help shrink tumors or slow cancer growth in patients who fit the genetic or diagnosis-specific requirements.
San Francisco, CaliforniaAges 18 years+ - NCT04928677RecruitingPhase 1
Codrituzumab for children and young adults with GPC3-positive solid tumors
This Phase 1 study tests codrituzumab, an antibody medicine, in children and young adults whose solid tumor has come back or did not respond to standard treatment. It’s designed to see how the treatment works and how safe it is, especially for tumors that test positive for GPC3.
Los Angeles, CaliforniaAges 1–21 - 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+ - NCT05055609RecruitingPhase 1
Study drug TRE-515 for advanced solid tumors using PET scans
This Phase 1 trial tests how safe TRE-515 is, what dose can be used, and how the drug moves through the body, including using PET scans. It’s for adults with advanced solid cancers that have stopped responding to standard treatment.
Santa Monica, CaliforniaAges 18 years+ - NCT05086692RecruitingPhase 1/Phase 2
Beta-only IL-2 therapy for advanced solid tumors
This Phase 1/2 study tests a beta-only version of IL-2, an immune-stimulating treatment, to shrink or control advanced or metastatic solid tumors. It’s mainly designed to check safety and to see if it can help patients by improving tumor response.
San Diego, CaliforniaAges 18 years+
Solid Tumor, Adult trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting solid tumor, adult studies listed above.
- University of California, San Francisco · 5 studies
- City of Hope Comprehensive Cancer Center · 3 studies
- Stanford University · 3 studies
- University of California, Irvine Medical Center / UC Irvine Health · 3 studies
- Cedars-Sinai Medical Center · 2 studies
- Children's Hospital Los Angeles · 2 studies
- Stanford Cancer Center · 2 studies
- University of California San Diego Health · 2 studies
What taking part in a solid tumor, adult 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, Adult trials in other states
Common questions
- Are there solid tumor, adult clinical trials in California?
- Yes. We're currently tracking 81 recruiting solid tumor, adult 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, adult 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, adult 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, adult 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.