Clinical trials · California
Cancer clinical trials in California
We’re tracking 1,313 recruiting cancer studies with a site in California — including Early Phase 1, Phase 1/Phase 2, Phase 2 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT05886036RecruitingPhase 2
Comparing rituximab vs mosunetuzumab for NLPHL
This trial compares two immunotherapy drugs, rituximab and mosunetuzumab, to see which works better for people with nodular lymphocyte-predominant Hodgkin lymphoma (NLPHL) who need treatment. It's for both newly diagnosed and previously treated patients.
Duarte, CaliforniaAges 18 years+ - NCT07217301RecruitingPhase 3
Comparing TAK-928 to docetaxel for advanced lung cancer
This study tests a new drug called TAK-928 against the standard chemo docetaxel for people with advanced squamous non-small cell lung cancer. You may be able to join if you have already tried a checkpoint inhibitor and platinum chemotherapy, and your cancer has grown.
Fair Oaks, CaliforniaAges 18 years+ - NCT07150715RecruitingPhase 2
Radioactive drug plus precise radiation for recurrent prostate cancer
This trial tests a powerful radioactive drug (either alpha or beta) combined with precise radiation to treat prostate cancer that has come back in a few spots outside the prostate. It may help men whose cancer is still hormone-sensitive and has not spread widely.
Los Angeles, CaliforniaAges 18 years+ - NCT06682390Recruiting
Race and diet study for men on hormone therapy
This study explores how race affects nutrition for men receiving hormone therapy (ADT) for prostate cancer. It may help researchers understand if different dietary approaches are needed based on race.
Los Angeles, CaliforniaAges 18 years+ - NCT07071896Recruiting
Video exercise program for breast cancer survivors
This study tests a video-based exercise program for people who recently had breast cancer surgery. It aims to help with recovery by providing guided exercises you can do at home.
San Diego, CaliforniaAges 18 years+ - NCT06410209RecruitingPhase 2
Walking Juntos: Smartphone program to help Hispanic cancer survivors be active
This study will test if a smartphone program and social media group can help Hispanic/Latino teens and young adults who had childhood cancer become more physically active. You would wear a Fitbit and use a phone app with culturally tailored tips and support.
Downey, CaliforniaAges 15–20 - NCT04871542Recruiting
Predicting risk of immune therapy side effects
This study tries to predict who is more likely to get serious side effects from immune checkpoint medicines used for solid tumors. You may help researchers by answering questionnaires before treatment and during follow-up, and by possibly storing sample specimens.
Antioch, CaliforniaAges 18 years+ - NCT07494617Recruiting
Video education for firefighters' health and safety
This trial tests whether a video-based program can help firefighters become more aware of their behaviors and risks. If you are a California firefighter, it may help you stay healthy and safe on the job.
Sacramento, CaliforniaAges 18 years+ - NCT05197881Recruiting
Daily adaptive radiation for newly diagnosed cervical cancer
This study tests a radiation plan that is adjusted day by day to better match your cervix and surrounding tissues during treatment. It’s for newly diagnosed, advanced cervical cancer patients who will receive standard pelvic radiation and chemotherapy.
La Jolla, CaliforniaAges 18 years+ - NCT06587490RecruitingPhase 3
Radiation therapy for limited metastatic cancers
This trial tests whether adding focused, high-dose radiation (SABR) to standard drug therapy can better control cancer that has spread to a few spots in the body. It is for people starting or resuming cancer medicines for newly found or growing metastases.
La Jolla, CaliforniaAges 18 years+ - NCT06581432RecruitingPhase 2
Zongertinib for advanced cancers with HER2 changes
This trial tests an experimental drug (zongertinib) for people with advanced solid tumors that have certain changes in the HER2 gene. It's for those who have already tried at least one standard treatment and need more options.
Beverly Hills, CaliforniaAges 18 years+ - NCT05772130Recruiting
Help family members get cancer genetic test results and counseling
This study tests a family-centered way to share cancer genetic testing results with close relatives, so more relatives get genetic counseling and testing. It may help your eligible family members understand their risk and get the right next steps.
Duarte, CaliforniaAges 18 years+ - NCT06985784Recruiting
Virtual reality for head and neck cancer patients and caregivers
This study tests whether using virtual reality can help reduce depression, anxiety, and pain in people with head and neck cancer and their caregivers. You and your caregiver may be able to use VR headsets together as part of your treatment.
Duarte, CaliforniaAges 18 years+ - NCT06600906Recruiting
MRI test to predict treatment response in pancreatic cancer
This study is testing a new MRI technique that may help predict how well pancreatic cancer treatments will work. You would receive a special substance (called hyperpolarized pyruvate) during a standard MRI scan.
San Francisco, CaliforniaAges 18 years+ - NCT06126276RecruitingPhase 2
Testing neratinib with or without palbociclib for HER2+ solid tumors
This trial tests two targeted drugs—neratinib alone or with palbociclib—for people with HER2-positive solid tumors (other than breast cancer) that have returned or not gone away. The goal is to see if blocking HER2 and CDK4/6 can shrink or slow the tumor.
Encinitas, CaliforniaAges 18 years+ - NCT04142437Recruiting
Tracking how larotrectinib works for NTRK fusion cancers in routine care
This study follows people with cancers that have an NTRK gene fusion to learn how safe and effective larotrectinib is during everyday treatment. It may help confirm whether this medicine works well in real-world patients and side effects stay manageable.
Los Angeles, CaliforniaAges Any age - NCT07232355Recruiting
Cervical cancer prevention with at-home self-sampling
This trial tests a new way to screen for cervical cancer using a self-collected sample at home. It aims to find high-risk HPV types early to prevent cancer.
Sunnyvale, CaliforniaAges 30–64 - NCT07217262Recruiting
Proactive Costs of Care Study
This study looks at the costs and challenges of cancer care for people with gynecologic cancers and their caregivers. By joining, you'll help researchers understand how to better support patients and families during treatment.
Los Angeles, CaliforniaAges 18 years+ - NCT07192432RecruitingPhase 1/Phase 2
Gene therapy for HER2-positive cancer
This trial tests a new gene therapy for people with HER2-positive cancer. It is for two groups: those with advanced cancer that has worsened after treatment, and those with early-stage cancer at high risk of coming back. The goal is to see if the therapy can safely help shrink tumors or prevent return.
Los Angeles, CaliforniaAges 18 years+ - NCT06594991RecruitingPhase 2
A study of three immunotherapy drugs for advanced melanoma
This trial tests a combination of three immunotherapy drugs (fianlimab, cemiplimab, and ipilimumab) for people with advanced melanoma that has stopped responding to previous PD-1/PD-L1 treatment. It aims to see if this new combination can help shrink or control the cancer.
Stanford, CaliforniaAges 18 years+ - NCT07220447RecruitingEarly Phase 1
L-Theanine for relaxation and mood in cancer survivors
This trial tests whether a natural supplement called L-theanine, found in green tea, can help cancer survivors feel more relaxed and improve their mood. You may qualify if you have finished cancer treatment, have been in surveillance for at least 6 months, and feel anxious.
Irvine, CaliforniaAges 18 years+ - NCT05939414RecruitingPhase 3
Lutetium prostate cancer treatment for limited PSMA-spread
This Phase 3 trial compares a targeted radiation medicine called lutetium (177Lu) vipivotide tetraxetan versus watchful waiting in people with prostate cancer that has spread to only a few spots. The goal is to see if the treatment can better control the cancer when scans show a small amount of PSMA-positive metastases.
Los Angeles, CaliforniaAges 18–100 - NCT05008848RecruitingPhase 3
Text message program to help rural cancer survivors quit smoking
This trial studies a text-message based program to help people who smoke quit. It targets adults in rural areas who are currently in cancer treatment and want support stopping smoking.
St. Helena, CaliforniaAges 18 years+ - NCT07306338Recruiting
Integrative oncology program interest survey at USC Norris
This trial asks patients about their interest in an integrative oncology program combining standard cancer care with complementary therapies like nutrition or acupuncture to improve well-being.
Los Angeles, 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
- Cedars-Sinai Medical Center · 3 studies
- University of California, Los Angeles (UCLA) · 3 studies
- USC / Norris Comprehensive Cancer Center · 3 studies
- Kaiser Permanente-Oakland · 2 studies
- Stanford University · 2 studies
- UCSF Benioff Children's Hospital Oakland · 2 studies
- University of California San Diego Health · 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 1,313 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.