Clinical trials · California
Cancer clinical trials in California
We’re tracking 1,320 recruiting cancer studies with a site in California — including Early Phase 1, Phase 1, Phase 1/Phase 2, Phase 2, Phase 2/Phase 3 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT07218146RecruitingPhase 3
Study of ZL-1310 vs Standard Care for Relapsed Small Cell Lung Cancer
This trial tests a new drug, ZL-1310, against standard treatments for people with small cell lung cancer that has returned after initial therapy. The goal is to see if ZL-1310 works better than other options.
La Jolla, CaliforniaAges 18 years+ - NCT06510374RecruitingPhase 3
Gene therapy vs. observation for intermediate risk bladder cancer
This trial tests a new gene therapy called nadofaragene firadenovec versus just watching and waiting (observation) for people with a specific type of bladder cancer that hasn't grown into the muscle. The goal is to see if the gene therapy can help keep the cancer from coming back.
Bakersfield, CaliforniaAges 18 years+ - NCT07492641RecruitingPhase 3
A new drug plus letrozole for advanced HR+ breast cancer
This trial tests a new medicine (BGB-43395) combined with letrozole against the usual CDK4/6 inhibitor plus letrozole. It is for people with advanced or metastatic HR-positive, HER2-negative breast cancer who have not yet had treatment for advanced disease.
Fountain Valley, CaliforniaAges 18 years+ - NCT06764875RecruitingPhase 3
New drug combo for HER2-positive stomach cancer
This trial tests a new immunotherapy called rilvegostomig combined with standard chemotherapy and a targeted therapy (trastuzumab deruxtecan) for people with advanced HER2-positive stomach or gastroesophageal junction cancer that has not been treated before.
Duarte, CaliforniaAges 18 years+ - NCT07525206RecruitingPhase 3
Combination treatment for advanced colorectal cancer
This trial tests a new drug combination for colorectal cancer that has not responded to other treatments. It compares the new drug with a standard treatment to see which is more effective.
Duarte, CaliforniaAges 18 years+ - NCT07431281RecruitingPhase 3
New drug combo for advanced stomach cancer with CLDN18.2
This trial tests a new drug combination for people with advanced stomach cancer that has not been treated before. It looks at two groups: one with PD-L1 (a protein that helps decide if immunotherapy works), and one without. The treatment includes an antibody-drug conjugate (Sonesitatug Vedotin) plus standard chemotherapy, with or without an immunotherapy drug.
Duarte, CaliforniaAges 18 years+ - NCT07562152RecruitingPhase 3
Atebimetinib Plus Gemcitabine/Nab-Paclitaxel for New Pancreatic Cancer
This trial tests a combination of three drugs—atebimetinib (a new targeted therapy), gemcitabine, and nab-paclitaxel (two standard chemotherapy drugs)—as a first treatment for pancreatic cancer that has spread beyond the pancreas. The goal is to see if adding atebimetinib helps patients live longer and feel better.
Duarte, CaliforniaAges 18 years+ - NCT07365995RecruitingPhase 3
New drug for advanced prostate cancer vs. standard chemo
This trial tests a new drug called BNT324 against the standard chemotherapy docetaxel for men with advanced prostate cancer that has stopped responding to hormone therapy. It aims to see if the new treatment can help control the cancer better.
Santa Barbara, CaliforniaAges 18 years+ - NCT07458347RecruitingPhase 1
Study of a new drug for advanced solid tumors with a KRAS mutation
This trial tests a new pill, KST-6051, for people with advanced solid tumors (like lung, pancreatic, or colorectal cancer) that have a specific genetic change called a KRAS mutation. The goal is to see if the drug can shrink or control the cancer, and to find the best dose.
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+ - NCT06925737RecruitingPhase 3
Study of I-DXd for metastatic prostate cancer
This study tests a new drug called Ifinatamab Deruxtecan (I-DXd) for people with metastatic prostate cancer that has stopped responding to hormone therapy. It may help by targeting and destroying cancer cells in a different way.
Clovis, CaliforniaAges 18 years+ - NCT06820463RecruitingPhase 2
Study of telisotuzumab adizutecan plus chemo for metastatic colorectal cancer
This trial tests a new drug combination for people with metastatic colorectal cancer. The study includes an experimental antibody-drug conjugate (telisotuzumab adizutecan) plus standard chemotherapy and targeted therapies, to see if it works better than current options.
Duarte, CaliforniaAges 18 years+ - NCT06422143RecruitingPhase 3
Keytruda with or without Sac-TMT for advanced squamous lung cancer
This trial tests the combination of pembrolizumab (Keytruda) with or without a new drug, sacituzumab tirumotecan (Sac-TMT), as initial treatment for advanced squamous non-small cell lung cancer. It aims to see if adding Sac-TMT after initial treatment helps keep cancer under control longer.
Burbank, CaliforniaAges 18 years+ - NCT07659782RecruitingPhase 2
Study of VS-7375 for KRAS G12D lung cancer
This trial tests a new drug, VS-7375, for people with advanced non-small cell lung cancer that has a specific genetic change called KRAS G12D. It's for those who have already tried chemo and immunotherapy, and whose cancer has continued to grow.
Los Angeles, CaliforniaAges 18 years+ - NCT07659795RecruitingPhase 2
Study of VS-7375 for KRAS G12D colorectal cancer
This trial tests a new targeted pill, VS-7375, for people with a specific type of advanced colorectal cancer called KRAS G12D. It's for those who either haven't had treatment yet or whose cancer has worsened after prior therapy.
Los Angeles, CaliforniaAges 18 years+ - NCT07214779RecruitingPhase 3
New drug vs chemo for platinum-resistant ovarian cancer
This study tests a new drug (INCB123667) given as a pill, compared to standard chemotherapy, for people whose ovarian cancer has stopped responding to platinum-based treatments and whose tumor has high levels of a protein called Cyclin E1. The goal is to see if the new drug works better than standard chemo for this specific type of cancer.
Duarte, CaliforniaAges 18 years+ - NCT06712316RecruitingPhase 2/Phase 3
New drug plus chemotherapy for advanced lung cancer
This trial tests a new investigational drug combined with chemotherapy for people with advanced non-small cell lung cancer that has not been treated before. The goal is to see if it is safe and works better than current treatments.
Concord, CaliforniaAges 18 years+ - NCT04888975Recruiting
Device study for one-arm swelling after lymph surgery
This study tests a medical device (Dayspring Technology) to reduce swelling in the arm caused by breast cancer treatment and lymph surgery. You may be eligible if you have one-sided arm swelling after lymphatic surgery and meet safety checks for the device.
Palo Alto, CaliforniaAges 18 years+ - NCT04700332RecruitingPhase 2
Test of PyL PET/CT for high-risk or returning prostate cancer
This Phase 2 study checks how well a scan called PyL PET/CT can help find prostate cancer that is high-risk or has come back by blood test. The goal is to improve how doctors detect spread and guide the next treatment steps.
Irvine, CaliforniaAges 18 years+ - NCT04020575RecruitingPhase 1
CAR T cells made from your blood for advanced breast cancer
This Phase 1 trial tests CAR T cells made from your own immune cells to target advanced breast cancer. The cells are designed to recognize a specific cancer marker (called MUC1*), with the goal of shrinking tumors or keeping them under control.
Duarte, CaliforniaAges 18 years+ - NCT05076942RecruitingPhase 2
Study of sentinel lymph nodes in vulvar cancer
This Phase 2 study looks at how vulvar squamous cell cancer (SCC) spreads to the sentinel lymph node, and how findings may guide treatment. It focuses on specific early-stage tumor features and requires that cancer is found in the sentinel lymph node.
Orange, CaliforniaAges 18 years+ - NCT05851365RecruitingEarly Phase 1
MRI scan to measure prostate acidity before surgery
This study tests a new MRI technique that measures acidity in prostate tumors. It may help doctors better understand the cancer before surgery, potentially guiding treatment decisions.
San Francisco, CaliforniaAges 18 years+ - NCT06084416RecruitingPhase 1
Pill study for advanced ovarian cancer that resists chemo
This trial tests an experimental drug called sovilnesib (taken as a pill) for people with advanced ovarian, fallopian tube, or peritoneal cancer that has stopped responding to platinum chemo. The goal is to see if this drug can shrink or slow the cancer.
Newport Beach, CaliforniaAges 18 years+ - NCT07128199RecruitingPhase 3
Zipalertinib after surgery for early-stage lung cancer with uncommon EGFR mutations
This study tests whether taking zipalertinib after lung cancer surgery can help prevent the cancer from coming back in people whose tumors have uncommon EGFR gene changes. It is a pill taken daily after recovery from surgery.
Duarte, CaliforniaAges 18 years+
Cancer trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting cancer studies listed above.
- City of Hope · 7 studies
- Cedars-Sinai Medical Center · 4 studies
- Valkyrie Clinical Trials · 3 studies
- Hoag Memorial Hospital Presbyterian · 2 studies
- Research Site · 2 studies
- UC San Diego Moores Cancer Center · 2 studies
- University of California San Diego Moores Cancer Center · 2 studies
- University of California, Irvine · 2 studies
What taking part in a 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.
Cancer trials in other states
Common questions
- Are there cancer clinical trials in California?
- Yes. We're currently tracking 1,320 recruiting 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 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 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 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.