Clinical trials · California
Cancer clinical trials in California
We’re tracking 1,311 recruiting cancer studies with a site in California — including Phase 1, Phase 1/Phase 2, Phase 2, Phase 2/Phase 3, Phase 3 and Phase 4 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT06842498RecruitingPhase 2
FG-3246 for advanced prostate cancer
This trial tests a new drug called FG-3246, which targets a protein (CD46) on prostate cancer cells. It's for men with advanced prostate cancer that has spread and stopped responding to standard hormone therapy, and who have had limited prior treatments.
Los Angeles, CaliforniaAges 18 years+ - NCT06773910RecruitingPhase 2
New drug combo vs standard care for limited-stage small cell lung cancer
This trial tests a new combination of drugs (atigotatug and nivolumab) against the standard drug durvalumab for people with limited-stage small cell lung cancer who have completed chemotherapy and radiation without the cancer getting worse. The goal is to see if the new combination works better at keeping the cancer from coming back.
Santa Barbara, CaliforniaAges 18 years+ - NCT07157033RecruitingPhase 1/Phase 2
Testing XER-001 with radiation for advanced pancreatic cancer
This trial tests a new way to deliver a drug called amifostine (XER-001) alongside intense radiation therapy (SBRT) for people with locally advanced pancreatic cancer that can't be surgically removed. The goal is to see if it's safe and effective at protecting healthy tissue while targeting the tumor.
Duarte, CaliforniaAges 18 years+ - NCT07144280RecruitingPhase 3
Study of a new drug vs docetaxel for advanced lung cancer
This trial tests a new experimental drug called PF-08046054/SGN-PDL1V against a standard chemotherapy (docetaxel) for people with a type of advanced lung cancer that has PD-L1 protein on at least 1% of tumor cells and has progressed after prior treatments. The goal is to see if the new drug works better or has fewer side effects.
Berkeley, CaliforniaAges 18 years+ - NCT07221357RecruitingPhase 2/Phase 3
Pumitamig plus chemo vs standard care for new colorectal cancer
This trial tests a new drug called Pumitamig combined with chemotherapy against standard bevacizumab plus chemotherapy for people with advanced colorectal cancer that cannot be surgically removed and hasn't been treated yet. The goal is to see which combination works better and is safer.
Los Angeles, CaliforniaAges 18 years+ - NCT07227012RecruitingPhase 1/Phase 2
Study of a new drug for advanced liver cancer
This trial tests a new medicine, PF-08634404, alone or with other treatments for adults with advanced liver cancer that cannot be removed by surgery or has spread. It is for people who have not had prior systemic therapy and have good liver function.
Irvine, CaliforniaAges 18 years+ - NCT06880055Recruiting
Shield blood test for colorectal cancer screening
This study is testing the Shield blood test for people at average risk of colorectal cancer. It looks at how well the test works for screening, so you can learn about your risk with a simple blood draw.
Anaheim, CaliforniaAges 45–81 - NCT07007559RecruitingPhase 2
Evorpacept with trastuzumab and chemo for HER2-positive breast cancer
This study tests an experimental drug called evorpacept when given with trastuzumab and chemotherapy for people with HER2-positive breast cancer that has spread. The goal is to see if this combination can shrink tumors or slow down the cancer.
Duarte, CaliforniaAges 18 years+ - NCT05564390RecruitingPhase 2
MyeloMATCH screening to match you to AML or MDS treatment
This study screens people with newly suspected acute myeloid leukemia (AML) or myelodysplastic syndrome (MDS) to see which treatment approach fits best—either a specific study treatment or standard care. It may help by directing you to the right option and by sharing your blood/bone marrow samples for research.
Berkeley, CaliforniaAges 18 years+ - NCT06629779RecruitingPhase 3
Study of Mevrometostat for Advanced Prostate Cancer
This study tests a new drug called mevrometostat for men with a specific type of advanced prostate cancer that has spread and is still growing despite hormone therapy. It aims to see if the drug can help control the cancer.
Anaheim, CaliforniaAges 18 years+ - NCT06312137RecruitingPhase 3
Pembrolizumab with or without another drug for lung cancer after surgery
This trial tests adding a new drug (sacituzumab tirumotecan) to pembrolizumab for people with non-small cell lung cancer that did not completely disappear after initial treatment and surgery. The goal is to see if the combination works better than pembrolizumab alone.
Beverly Hills, 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+ - NCT06524544RecruitingPhase 3
Pembrolizumab and sacituzumab govitecan for advanced bladder cancer
This trial tests a new drug combination (pembrolizumab and sacituzumab govitecan) against standard treatment for advanced bladder cancer that has spread or cannot be removed by surgery. It's for people who have already tried an immunotherapy drug like pembrolizumab and another drug called enfortumab vedotin.
Irvine, CaliforniaAges 18 years+ - NCT06692738RecruitingPhase 3
Is a new immunotherapy better than Keytruda for squamous lung cancer?
This trial tests a new drug called Rilvegostomig against the standard drug pembrolizumab (Keytruda), both combined with chemotherapy, as a first treatment for advanced squamous non-small cell lung cancer. It aims to see which combination works better.
Anaheim, CaliforniaAges 18 years+ - NCT06801834RecruitingPhase 3
Study of sacituzumab govitecan vs. standard care for advanced small cell lung cancer
This trial tests a new drug called sacituzumab govitecan against the usual treatments for people with extensive-stage small cell lung cancer that has gotten worse after initial chemotherapy. It aims to see if the new drug helps patients live longer or have better outcomes.
Anaheim, CaliforniaAges 18 years+ - NCT06084234RecruitingPhase 4
National liver cancer screening trial
This trial is testing a new way to screen for liver cancer in people with cirrhosis or chronic hepatitis B. It aims to find cancer earlier so it can be treated more effectively.
Los Angeles, CaliforniaAges 18–85 - NCT05302583Recruiting
Aromatherapy inhaler for stress during stem cell transplant
This trial tests whether using a lavender or peppermint aromatherapy inhaler can reduce distress (stress or discomfort) for adults during stem cell transplant care. It’s for people who are getting chemotherapy before the transplant and who do not have allergies to those essential oils.
Stanford, CaliforniaAges 18 years+ - NCT07546500RecruitingPhase 3
Azenosertib versus chemotherapy for advanced ovarian cancer
This trial tests a new drug called azenosertib against standard chemotherapy for ovarian, fallopian tube, or peritoneal cancer that has come back after platinum-based treatment. The drug targets a specific protein (cyclin E1) found in some tumors and may help stop cancer cells from dividing.
Antioch, CaliforniaAges 18 years+ - NCT03424005RecruitingPhase 1/Phase 2
Testing new drug combinations for advanced breast cancer
This study tests how well and how safely different combinations of cancer drugs work for people with metastatic or inoperable locally advanced breast cancer. It may help by finding a better treatment option and collecting information to guide future care.
Duarte, CaliforniaAges 18 years+ - NCT07619599RecruitingPhase 1
PET Scan to Track Lung Cancer Treatment Response
This study uses a special PET imaging scan to help doctors see how well pembrolizumab (an immunotherapy drug) is working against advanced non-small cell lung cancer. You'll receive the scan along with your regular pembrolizumab treatment and possible radiation therapy to help measure treatment response.
Duarte, CaliforniaAges 18 years+ - NCT05304962RecruitingPhase 1
Test drug RGT-419B for advanced ER+ HER2- breast cancer
This Phase 1 study tests a new drug (RGT-419B), given alone or with hormone (endocrine) therapy, in people with advanced ER-positive, HER2-negative breast cancer that has progressed after standard treatments. It looks mainly at safety and early signs of how well the treatment may work.
La Jolla, CaliforniaAges 18 years+ - NCT05099172RecruitingPhase 1/Phase 2
Study drug for EGFR or HER2-mutated advanced lung cancer
This early-phase study tests a new investigational medicine (BAY2927088) in people with advanced non-small cell lung cancer (NSCLC) that has EGFR and/or HER2 mutations. It’s designed to see how the drug works and what side effects it causes, when standard options have not helped or aren’t suitable.
Duarte, CaliforniaAges 18 years+ - NCT06989112RecruitingPhase 3
First-line treatment for advanced or recurrent endometrial cancer
This trial tests a new combination of drugs for endometrial cancer that has spread or come back. It aims to see if these drugs can shrink tumors and help people live longer. It is for tumors that have a certain protein (HER2) and are mismatch repair proficient (meaning they have a normal DNA repair system).
Duarte, 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+
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 Comprehensive Cancer Center · 5 studies
- University of California, Irvine Medical Center / UC Irvine Health · 5 studies
- UC Irvine Health · 3 studies
- UC San Diego Moores Cancer Center · 3 studies
- University of California San Diego Health · 3 studies
- University of California, San Francisco · 3 studies
- Alta Bates Summit Medical Center · 2 studies
- Kaiser Permanente Roseville Medical Center · 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 1,311 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.