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 2, Phase 2, Phase 3 and Phase 4 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT06101290Recruiting
Local therapy for progressing spots in genitourinary cancers
This trial explores whether treating only the new or growing spots of cancer (called oligoprogression) with local therapies like radiation or ablation can help you stay on your current systemic treatment longer. It is for people with prostate, bladder, or kidney cancer that has started to progress in a few places.
Sacramento, CaliforniaAges 18 years+ - NCT02081755Enrolling by invitationPhase 4
Everolimus after liver transplant to lower liver cancer return
This trial studies whether everolimus, a transplant medicine, can safely reduce the chance that liver cancer comes back after liver transplant. It compares how well the treatment works while carefully monitoring side effects and safety.
San Francisco, CaliforniaAges 18 years+ - NCT07461948RecruitingPhase 3
Advanced imaging study for glioblastoma patients
This trial uses special MRI scans and a contrast agent to look at the immune environment of glioblastoma tumors. It may help doctors learn more about how the tumor responds to treatment.
Los Angeles, CaliforniaAges 18 years+ - NCT07470008Recruiting
Registry study for histotripsy in adults with soft tissue tumors
This study is a registry for adults getting histotripsy—a non-invasive ultrasound that breaks down soft tissue tumors—at UCSF. Joining means researchers can follow your treatment and outcomes to learn more about how well histotripsy works.
San Francisco, CaliforniaAges 18 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+ - NCT05952804RecruitingPhase 2
IVIG to help prevent infections after CAR-T treatment
This Phase 2 study tests whether IVIG (a blood product that helps fight infections) can lower infection risk after you receive CD19 CAR-T therapy. It’s meant to help protect you during the vulnerable period after CAR-T treatment.
Duarte, CaliforniaAges 18 years+ - NCT06861244RecruitingPhase 2
ETMR brain tumor trial for children
This trial is for children with a rare brain tumor (ETMR) who have not had radiation. Depending on how much tumor is left after surgery and if it has spread, the study compares giving radiation early versus high-dose chemotherapy.
San Francisco, CaliforniaAges Any age - NCT07506239Recruiting
Laser therapy for low-grade brain tumors in young people
This trial tests a laser treatment called LITT for low-grade glioma (a type of brain tumor) that has come back or is growing despite prior treatment. It aims to see if the laser is safe and effective in young people aged 2 to 25.
San Francisco, CaliforniaAges 2–25 - NCT07514143Recruiting
Bladder Cancer Detection Study Using Urine Test
This study tests a new urine-based test called EpiCheck to help detect bladder cancer. You'll provide urine samples before or during a bladder procedure you're already scheduled to have, and researchers will see how well the test works.
San Diego, CaliforniaAges 22 years+ - NCT07546331Recruiting
Body Composition and Breast Reconstruction Outcomes
This study measures body composition (muscle and fat distribution) in patients undergoing breast reconstruction after mastectomy to understand how these measurements relate to surgical outcomes and recovery. Understanding these connections may help doctors better predict and optimize results for future patients.
San Francisco, CaliforniaAges 18 years+ - NCT07591571Recruiting
Digital support program for newly diagnosed pancreatic cancer
This study tests a digital support program led by community health workers for people recently diagnosed with pancreatic adenocarcinoma (a type of pancreatic cancer). The program aims to help patients navigate their diagnosis and treatment.
Loma Linda, CaliforniaAges 1.5 years+ - NCT07344220Enrolling by invitationPhase 2
Maintenance therapy study for stable metastatic pancreatic cancer
This trial tests a new drug, DZ-002, as maintenance therapy for people with metastatic pancreatic cancer whose disease has not worsened after at least 4 months of first-line chemotherapy. The goal is to help keep the cancer under control with fewer side effects.
Newport Beach, CaliforniaAges 18 years+ - NCT06472765Enrolling by invitation
Study of the Vaginal Ecosystem in Healthy Women
This study looks at the natural balance of bacteria and other factors in the vagina of healthy women. It aims to learn more about what a healthy vaginal ecosystem looks like.
Los Angeles, CaliforniaAges 18–89 - NCT05303532Enrolling by invitationPhase 3
Continue durvalumab after finishing a prior cancer study
This study lets people who already finished (or can no longer continue) an earlier AstraZeneca cancer treatment study keep receiving durvalumab. It tests whether continuing the same kind of treatment on a regular schedule can help keep your cancer under control.
Newport Beach, CaliforniaAges 18–99 - NCT05001009Enrolling by invitation
Goals of care conversation support for certain serious illnesses
This study helps primary care clinicians and their patients have structured “goals of care” conversations (about what matters most and care preferences). It may help you get clearer, earlier planning—especially if you have a serious illness and higher risk of hospitalization or death.
Palo Alto, 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.
- University of California, San Francisco · 4 studies
- City of Hope Comprehensive Cancer Center
- Claris Health
- Hoag Memorial Hospital Presbyterian
- Loma Linda University Health
- Om Research LLC
- Pelvic Pain Rehab
- Providence Medical Foundation
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.