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 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT07587268Recruiting
Understanding Your Appendiceal Cancer Through Genetic Testing
This research study uses genetic and molecular testing on archived tumor samples to better understand appendiceal cancer and predict how it may progress. The goal is to help doctors personalize treatment plans based on the specific characteristics of your cancer.
Durate, CaliforniaAges 18 years+ - NCT07664579Recruiting
Couples coping together against cancer support program
This trial tests a supportive care program for couples facing cancer. It helps you and your partner work together to manage the challenges of a cancer diagnosis.
Duarte, CaliforniaAges 18 years+ - NCT07226180Enrolling by invitation
Building models from your tumor to guide treatment
This trial takes a small sample of your tumor to grow a model in the lab. This model helps doctors test which treatments might work best for you.
Newport Beach, CaliforniaAges 18 years+ - NCT07116668Enrolling by invitation
Colovac device study for colon surgery patients
This trial tests a device called Colovac that protects the connection made during colon surgery for cancer. It may help patients who need a temporary colostomy bag heal better.
Los Angeles, CaliforniaAges 22 years+ - NCT06931860Enrolling by invitation
Mailed colon cancer screening test comparison
This trial compares two home colon cancer screening tests, Cologuard and FIT, mailed directly to you. It aims to see which one helps more people complete screening and find the test that works best for you.
La Jolla, CaliforniaAges 45–49 - NCT06763770Enrolling by invitation
Digital support for young adult cancer survivors
This trial tests a digital program that combines self-management tools and peer mentoring to help young adults who had childhood cancer transition to long-term follow-up care.
Los Angeles, CaliforniaAges 18–25 - NCT06549088Enrolling by invitation
Lung cancer tissue imaging study using light
This study tests a new imaging technique that uses light to look at lung tissue removed during surgery. It may help doctors see cancer details more clearly without damaging the tissue.
Orange, CaliforniaAges 18 years+ - NCT05913999Enrolling by invitation
PET and heart scans during early chemotherapy
This trial studies how a specialized heart imaging test (PET/MPI) changes during the start of chemotherapy for cancer patients. It may help researchers understand whether this monitoring approach detects heart strain early and keeps patients safer during treatment.
Los Angeles, CaliforniaAges 18 years+ - NCT05741242Enrolling by invitationPhase 1/Phase 2
Vaccine trial using customized immune targets for solid tumors
This trial tests a personalized cancer vaccine made from synthetic long peptide “neoantigens,” aiming to be safe and help the immune system fight certain solid tumors. It may fit people with pancreatic cancer after starting first-line chemotherapy, and some other solid tumors with limited options.
Beverly Hills, CaliforniaAges 12 years+ - NCT05645536Enrolling by invitationPhase 3
Safety follow-up for hormone-positive, HER2-negative breast cancer
This trial studies the safety of continuing endocrine therapy with ovarian suppression (for women) after you finish the earlier OVELIA study. It may help doctors confirm that the treatment remains safe for longer-term use.
Greenbrae, CaliforniaAges 18–51 - NCT05160480Enrolling by invitation
Total-body PET scan using FDA-approved tracers for prostate or NET cancer
This pilot study tests a total-body PET scan with approved tracer medicines to help detect cancer spread in people with suspected metastatic prostate cancer or certain neuroendocrine tumors (NETs). You may be able to join if recent scans already suggest metastasis and you can safely complete the scan timing and positioning.
Sacramento, CaliforniaAges 18 years+ - NCT05614739RecruitingPhase 1
Study of vepugratinib for cancers with FGFR3 gene changes
This study tests a new pill, vepugratinib, for people whose cancer has a specific change in a gene called FGFR3. The drug targets this gene change to try to slow or shrink the cancer, and may be an option if standard treatments have not worked.
Duarte, CaliforniaAges 18 years+ - NCT04410302Recruiting
Personalized tumor research for bladder, lung, stomach, and liver cancers
This study uses a small sample of your tumor to grow it in the lab, which may help researchers understand your cancer better and find treatments that work for you.
Orange, CaliforniaAges 21–100 - NCT06997497RecruitingPhase 3
Study of Calderasib with other drugs for colorectal cancer
This trial tests a new drug called Calderasib combined with targeted therapy or chemotherapy for people with advanced colorectal cancer that has a specific genetic change (KRAS G12C mutation). It may be an option for those who have not had prior treatment for advanced disease.
Los Angeles, CaliforniaAges 18 years+ - NCT07195695RecruitingPhase 3
Zongertinib after surgery for HER2-mutated lung cancer
This trial tests a new pill, zongertinib, against standard of care for people with early-stage (II–IIIB) non-small cell lung cancer that has a specific HER2 mutation in the tyrosine kinase domain. The goal is to see if zongertinib can prevent the cancer from coming back after complete surgical removal.
Fresno, CaliforniaAges 18 years+ - NCT06841354RecruitingPhase 3
Sac-TMT alone or with pembrolizumab for advanced triple-negative breast cancer
This trial tests a new drug, Sac-TMT, given alone or with an immunotherapy drug (pembrolizumab) for people with advanced triple-negative breast cancer who have not yet received any treatment for advanced disease. The goal is to see if this combination can shrink tumors or slow the cancer's growth.
Duarte, CaliforniaAges 18 years+ - NCT07332507RecruitingPhase 1
Testing teclistamab for recurrent plasmablastic lymphoma
This trial tests a new drug called teclistamab for people with plasmablastic lymphoma that has come back or not responded to standard treatments. The goal is to see if teclistamab can shrink tumors and control the disease.
Duarte, CaliforniaAges 18 years+ - NCT07218380RecruitingPhase 3
Study of Vepugratinib for advanced bladder or urinary tract cancer
This trial tests an experimental drug called Vepugratinib for people with advanced urinary tract cancer that has a specific change in the FGFR3 gene. It may be an option if you haven't had other treatments for advanced cancer and are looking for a new approach.
Irvine, CaliforniaAges 18 years+ - NCT07169851RecruitingPhase 2
Study of a new drug for chemo nausea and vomiting
This trial tests a medication called LY3537021 to see if it can prevent nausea and vomiting caused by certain types of chemotherapy (AC or cisplatin) in people who have not had chemo before. It focuses on patients who are otherwise in fairly good health.
Greenbrae, CaliforniaAges 18 years+ - NCT07326566RecruitingPhase 2
Silevertinib and chemo for a type of glioblastoma
This trial tests a new drug, silevertinib, combined with temozolomide (a chemotherapy) for people with a newly diagnosed glioblastoma that has certain genetic markers. It aims to see if this combination works better than standard treatment for tumors with these specific features.
Los Angeles, CaliforniaAges 18 years+ - NCT07213804RecruitingPhase 3
Study of sofetabart mipitecan for ovarian cancer
This trial tests a new drug called sofetabart mipitecan for people with ovarian cancer that has come back after treatment. It is for those whose cancer is either resistant to platinum chemo (Part A) or sensitive to it (Parts B and C). The study will see if the drug can help shrink or slow the cancer.
Burbank, CaliforniaAges 18 years+ - NCT05621291Recruiting
Sequencing test to guide care after CD19 CAR T in kids
This study checks a DNA-based lab test (next-generation sequencing, or NGS) to monitor B-cell recovery after CD19 CAR T treatment in children and young adults. The goal is to see whether the test can help guide management while looking for remission and safe recovery.
Los Angeles, CaliforniaAges 1–25 - NCT07287098RecruitingPhase 2
Imlunestrant for premenopausal women with ER+/HER2- early breast cancer
This trial tests a new hormone-blocking pill (imlunestrant) in premenopausal women with early-stage ER+/HER2- breast cancer. Depending on whether you've had prior hormone therapy, the study will see if this treatment works better than standard options.
Duarte, CaliforniaAges 18 years+ - NCT06337318RecruitingPhase 3
Comparing two drugs for low-tumor burden follicular lymphoma
This trial compares a standard drug called rituximab to a newer medicine called mosunetuzumab for people with a slow-growing type of lymphoma that is not causing many symptoms. The goal is to see if mosunetuzumab works better and has fewer side effects.
Beverly Hills, 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 · 7 studies
- University of California, Irvine Medical Center / UC Irvine Health · 7 studies
- City of Hope Orange County Lennar Foundation Cancer Center · 5 studies
- Cedars-Sinai Medical Center · 3 studies
- UC Irvine Health · 3 studies
- Kaiser Permanente-Vallejo · 2 studies
- Marin Cancer Care · 2 studies
- UCLA Hematology/Oncology - Santa Monica · 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.