Clinical trials · California
Cancer clinical trials in California
We’re tracking 1,320 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
- NCT06084338RecruitingPhase 2
Focused Radiation Therapy Without Hormone Therapy for Advanced Prostate Cancer
This trial tests whether giving focused radiation to many cancer spots (SBRT) can work without using testosterone-blocking hormone therapy. It is for men whose prostate cancer has spread and is no longer responding to low testosterone, and who have already tried one of the newer hormone drugs.
West Los Angeles, CaliforniaAges 18 years+ - NCT06090903Recruiting
MRI Study to Understand Glioblastoma Biology Before Surgery
This study uses MRI scans to learn more about the biology of glioblastoma before and after surgery. It may help doctors understand how the tumor behaves and improve future treatments.
Los Angeles, CaliforniaAges 18 years+ - 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+ - NCT04110756Recruiting
Program to help teens change health behaviors
This study tests a program designed to help teens make healthier choices. It’s for teens who are 15–17 and are currently drinking alcohol, who come to specific UCSF pediatric check-up visits.
San Francisco, CaliforniaAges 15–17 - NCT06064097RecruitingPhase 2
Nivolumab plus chemo for young people with nasopharyngeal cancer
This trial tests combining the immunotherapy drug nivolumab with standard chemotherapy to treat newly diagnosed nasopharyngeal cancer in children and young adults. The goal is to see if adding this immune-boosting medicine can help shrink tumors and prevent the cancer from coming back.
Downey, CaliforniaAges Up to 21 years - NCT04792684Recruiting
Collecting colon samples from adults with colon findings
This study collects body samples to help evaluate tests for people with suspected or newly diagnosed colorectal conditions, often around the time of colonoscopy or surgery. Depending on the arm, you may be asked to have a colonoscopy soon or to provide samples before planned surgery.
Chula Vista, CaliforniaAges 45–84 - NCT06059690RecruitingPhase 1/Phase 2
Imaging brain tumors to guide glioblastoma treatment
This trial studies a special imaging scan that combines MRI and PET to find active tumor areas in patients with glioblastoma. It aims to see if the scan can help identify the most aggressive parts of the tumor for surgery.
Los Angeles, CaliforniaAges 18 years+ - NCT06063928Recruiting
Cancer support study for Hispanic patients
This study explores how community support affects Hispanic people with colon or rectal cancer. You provide a tumor sample and answer questions to help researchers learn how to better support patients like you.
Los Angeles, CaliforniaAges 18 years+ - NCT06067295Recruiting
Long-term study of advanced prostate cancer
This study follows men with advanced prostate cancer that has spread to other parts of the body. It aims to learn more about how the disease and treatments affect patients over time, so doctors can improve care.
Los Angeles, CaliforniaAges 18 years+ - NCT06064682Recruiting
Organoid test to guide osteosarcoma treatment
This trial uses a lab-grown mini tumor (organoid) from your biopsy to test which drugs might work best for your osteosarcoma. It aims to personalize your treatment based on how your specific cancer cells respond.
Los Angeles, CaliforniaAges Any age - NCT06055296Recruiting
Supporting Hispanic families in pediatric cancer clinical trials
This study helps Hispanic families with a child newly diagnosed with cancer understand their options when a clinical trial is offered. It looks at how to better support parents during the informed consent process.
San Diego, CaliforniaAges 18 years+ - NCT06053658RecruitingPhase 2
Tivozanib and Nivolumab for advanced kidney cancer
This trial tests a combination of two drugs (tivozanib and nivolumab) for people with advanced kidney cancer that is not clear cell type. It aims to see if this drug pair can shrink or slow the cancer.
Irvine, CaliforniaAges 18 years+ - NCT06022939RecruitingPhase 3
Comparing chemo plus stem cell transplant to chemo alone for AL amyloidosis
This study tests whether adding a stem cell transplant to standard chemotherapy (Dara-VCD) works better than chemotherapy alone for people newly diagnosed with AL amyloidosis. It aims to find the best way to control the disease and improve outcomes.
Duarte, CaliforniaAges 18 years+ - NCT06022965Recruiting
Telemedicine support for older adults with cancer
This study uses telemedicine (video or phone visits) to help older adults with cancer, especially those in underserved communities, get better care. If you're 65 or older and starting a new cancer treatment, you may be able to join from home in English, Spanish, or Chinese.
Duarte, CaliforniaAges 65 years+ - NCT06004245RecruitingPhase 1
Study of new drug for advanced solid tumors with certain genetic markers
This trial is testing a new oral medication, VVD-133214, for people with advanced solid tumors that have a specific genetic feature called MSI-high or dMMR. The study will see if the drug is safe and effective when given alone or with other drugs like bevacizumab or pembrolizumab.
Los Angeles, CaliforniaAges 18 years+ - NCT06014658RecruitingPhase 1/Phase 2
Study of MBRC-101 for advanced solid tumors
This trial tests a new drug, MBRC-101, that targets a protein called EphA5 found on some cancer cells. It is for people with advanced solid tumors (like lung, breast, or pancreatic cancer) that have stopped responding to other treatments. The study aims to find a safe dose and see if the drug can shrink tumors.
San Francisco, CaliforniaAges 18 years+ - NCT06010329RecruitingPhase 2
Study of a new pill for advanced lung cancer with rare EGFR mutations
This trial tests an experimental pill called Sutetinib for people with advanced non-small cell lung cancer that has a rare EGFR gene change. It aims to see if the drug can shrink tumors and improve survival.
Glendale, CaliforniaAges 18 years+ - NCT05999994RecruitingPhase 2
Testing new drugs for children and young adults with cancer
This trial tests several experimental drugs for children and young adults with cancer. It aims to find safe and effective treatments by matching participants to one of several drug studies based on their cancer type and health.
Los Angeles, CaliforniaAges 1–39 - NCT05985161RecruitingPhase 2
Selinexor for wilms tumor and other solid tumors
This trial tests a drug called selinexor for children and young adults with certain types of solid tumors (like Wilms tumor, rhabdoid tumors, MPNST, or others with specific genetic changes) that have come back or not responded to standard treatment. Participants take selinexor pills to see if it can shrink or control their cancer.
Los Angeles, CaliforniaAges 1 year+ - NCT05996627RecruitingPhase 2
Belumosudil for early treatment of chronic graft-versus-host disease
This trial tests a pill called belumosudil to see if it can help people with chronic graft-versus-host disease (a common complication after a stem cell transplant where donor cells attack your body). It is for patients who have symptoms but are not yet on strong immune-suppressing drugs.
Duarte, CaliforniaAges 18 years+ - NCT05978141Recruiting
T-cell lymphoma registry study
This study creates a registry for people with certain T-cell or NK-cell lymphomas. It collects health information and tumor samples to learn more about these diseases and improve future treatments.
Duarte, CaliforniaAges Any age - 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+ - NCT05967689RecruitingPhase 2
Zipalertinib for lung cancer with EGFR exon 20 mutations
This Phase 2 trial tests zipalertinib (a targeted pill) in people with advanced non-small cell lung cancer (NSCLC) that has specific EGFR mutations, especially “exon 20 insertions.” It may help shrink tumors or slow cancer growth, including in some people with brain metastases.
Duarte, CaliforniaAges 18 years+ - NCT05939414RecruitingPhase 3
Study of radioactive drug for prostate cancer that has spread a little
This study tests a radioactive drug (177Lu-PSMA-617) compared to no immediate treatment in men with prostate cancer that has returned and spread to a few spots (oligometastatic). It aims to see if this treatment delays the spread of cancer and improves outcomes.
Los Angeles, CaliforniaAges 18–100
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 · 6 studies
- City of Hope at Irvine Lennar · 2 studies
- UCLA Jonsson Comprehensive Cancer Center · 2 studies
- UCSF Medical Center · 2 studies
- USC Norris Comprehensive Cancer Center · 2 studies
- Children's Hospital Los Angeles
- Children's Hospital of Los Angeles
- Children's Hospital of Los Angeles (Data Collection Only)
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.