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
- NCT03678025RecruitingPhase 3
Standard treatment for metastatic prostate cancer, with or without local treatment
This Phase 3 trial studies whether using the usual medicines for metastatic prostate cancer, plus a definitive local treatment to the prostate, improves outcomes. It may help determine if treating the prostate directly can benefit people whose cancer has not worsened after initial hormone-based treatment.
Antioch, CaliforniaAges 18 years+ - NCT03582124RecruitingPhase 1/Phase 2
Panitumumab dye to help find lung cancer during surgery
This trial tests a special dye drug (panitumumab-IRDye800) that may help surgeons better see lung cancer areas while operating. If it works, it could improve how well cancer tissue is found and removed during planned lung surgery.
Palo Alto, CaliforniaAges 19 years+ - NCT02734537RecruitingPhase 2
Radiation with or without cisplatin after head and neck surgery
This trial studies whether adding cisplatin (a chemotherapy medicine) to radiation therapy helps people with stage III–IVA squamous cell cancer of the head and neck after they’ve had surgery. It’s meant to lower the risk of the cancer coming back.
Merced, CaliforniaAges 18 years+ - NCT00568490Recruiting
Finding blood markers that show low oxygen in tumors
This study looks for substances in blood that may reflect how “low-oxygen” a tumor is. If you have head and neck cancer or non-small cell lung cancer, it may help researchers understand tumor oxygen levels and improve future care.
Stanford, CaliforniaAges 18 years+ - NCT07743164RecruitingPhase 3
Raludotatug deruxtecan for PARP-inhibitor-resistant ovarian cancer
This trial tests a new drug called raludotatug deruxtecan (with or without bevacizumab) for people with ovarian cancer that has grown despite PARP inhibitor maintenance treatment. The goal is to see if this drug can shrink tumors or slow the cancer's growth.
Fountain Valley, CaliforniaAges 18 years+ - NCT07516366RecruitingPhase 2
Immunotherapy before surgery for clear cell kidney cancer
This trial tests whether giving two immunotherapy drugs before surgery can safely shrink kidney cancer tumors and help your body fight the cancer. You would receive the drugs before your scheduled surgery, and then your cancer would be removed as planned.
Irvine, CaliforniaAges 18 years+ - NCT07827001Recruiting
Monitoring brain tumors during systemic treatment
This study tests whether it's safe to skip radiation and instead rely on a new systemic treatment (like immunotherapy or targeted therapy) to control brain tumors that have spread from other parts of the body. It might help you manage your disease while avoiding the side effects of radiation.
Orange, CaliforniaAges 18 years+ - NCT07719361RecruitingPhase 1
New drug for advanced, treatment-resistant prostate cancer
This study tests an experimental drug for men whose prostate cancer has spread and stopped responding to standard hormone therapies. It may be an option if your PSA is rising despite treatment with drugs like enzalutamide or abiraterone.
Los Angeles, CaliforniaAges 18 years+ - NCT07671937Recruiting
Sharing patient feedback in cancer care team meetings
This study gathers your feedback (like symptoms and quality of life) and shares it with your cancer care team during their group meetings, so they can better tailor your care. It is for people recently diagnosed with pancreatic, breast, or gynecologic cancer and aims to make sure your voice is heard in treatment decisions.
Los Angeles, CaliforniaAges 18 years+ - NCT07581184RecruitingPhase 1
Targeted Radioactive Therapy for Advanced Prostate Cancer
This Phase 1 trial tests a new radioactive treatment called [225Ac]Ac-AKY-2519 in men with advanced prostate cancer that has spread and stopped responding to hormone therapy. The drug carries radioactivity directly to cancer cells to try to shrink tumors and slow disease progression.
Irvine, CaliforniaAges 18 years+ - NCT07545811RecruitingPhase 1
JANX014 for Advanced Prostate Cancer
This study tests a new immunotherapy drug called JANX014 in men with advanced prostate cancer that has stopped responding to hormone treatments. The trial aims to find the right dose and see if this drug can help slow or stop cancer growth.
La Jolla, CaliforniaAges 18 years+ - NCT07505797Recruiting
Ultrasound imaging study for suspicious breast lesions
This study is testing a new ultrasound device (ATUSA) to see how well it can image breast lesions that have been classified as suspicious (BI-RADS 4 or 5). If you have a recent finding that needs further evaluation, this research might help improve detection methods.
Sacramento, CaliforniaAges 18–94 - NCT07489066RecruitingPhase 2
Study of PF-08634404 for early-stage or locally advanced lung cancer
This trial tests a new drug, PF-08634404, alone or with other treatments, for people with early-stage or locally advanced non-small cell lung cancer (NSCLC) that can be surgically removed or has been treated with radiation and chemo. It aims to find if the drug helps before or after surgery or after standard treatments.
Stanford, CaliforniaAges 18 years+ - NCT07432295RecruitingPhase 2
Givastomig plus nivolumab and chemo for advanced stomach cancer
This trial tests a new drug, givastomig, combined with standard immunotherapy (nivolumab) and chemotherapy for people with advanced stomach, gastroesophageal junction, or esophageal cancer. It is for people whose tumors have certain markers (CLDN18.2 and PD-L1) and who have not had treatment for advanced disease.
Duarte, CaliforniaAges 18 years+ - NCT07318805RecruitingPhase 1
A study of PF-08032562 for advanced solid tumors
This study tests a new medicine, PF-08032562, for people with advanced breast or colorectal cancer that has not responded to prior treatments. It aims to see if the drug is safe and can help shrink or slow the cancer.
Duarte, CaliforniaAges 18 years+ - NCT07322094RecruitingPhase 1/Phase 2
Study of TORL-1-23 plus chemo before surgery for advanced ovarian cancer
This trial tests a new drug, TORL-1-23, given with chemotherapy before surgery for women with advanced ovarian cancer. It aims to see if this combination is safe and effective in shrinking tumors before they are removed.
Irvine, CaliforniaAges 18–75 - NCT07307664Recruiting
Increasing genetic testing for cancer patients
This trial aims to increase the use of genetic testing (germline testing) among cancer patients by working with healthcare providers like oncologists and nurses. If you are an oncology care team member treating adults with breast, pancreatic, or colorectal cancer, this study may be for you.
Los Angeles, CaliforniaAges Any age - NCT07281417RecruitingPhase 2
Testing adding cemiplimab to chemo before surgery for sinus cancer
This trial tests whether adding the immunotherapy drug cemiplimab to standard chemotherapy before surgery helps treat sinonasal squamous cell carcinoma. The goal is to see if this combination reduces tumors more effectively than chemotherapy alone.
Irvine, CaliforniaAges 18 years+ - NCT07277413RecruitingPhase 1
Study of IDE892 for advanced solid tumors with MTAP deletion
This study tests a new drug called IDE892, alone or in combination, for people with advanced solid tumors that have a specific genetic change (MTAP deletion). The goal is to see if the drug is safe and whether it can shrink tumors.
Duarte, CaliforniaAges 18 years+ - NCT07262619RecruitingPhase 1/Phase 2
Study of EIK1005 for advanced solid tumors
This study tests an experimental drug called EIK1005, either alone or combined with another drug (pembrolizumab), for people with advanced solid tumors, especially those with MSI-H or dMMR cancers (tumors that have trouble repairing their DNA). The goal is to see if it can shrink tumors or slow cancer growth.
Los Angeles, CaliforniaAges 18 years+ - NCT07226544RecruitingPhase 2
Ivonescimab before surgery for high-risk kidney cancer
This trial tests giving the drug ivonescimab before surgery for patients with high-risk clear cell kidney cancer. The goal is to see if it can help shrink the tumor and improve outcomes.
Duarte, CaliforniaAges 18 years+ - NCT07216105RecruitingPhase 1
New immune cell treatment for advanced solid tumors
This trial tests a new treatment using specially engineered immune cells (called FT836) for people with advanced solid tumors that have not responded to other treatments. It may be given alone or with chemotherapy and/or other antibody medicines. The study aims to see if this approach can shrink tumors or slow their growth.
La Jolla, CaliforniaAges 18 years+ - NCT07219251Recruiting
Veterans with lung cancer needed for study
This study wants to learn more about the experiences of veterans with lung cancer. If you are receiving cancer treatment or recently finished it, you may be able to join.
Palo Alto, CaliforniaAges 18 years+ - NCT04503265RecruitingPhase 1/Phase 2
AMXI-5001 study for advanced cancers that won’t respond
This Phase 1/2 trial tests AMXI-5001 in people with advanced cancers that have progressed or stopped responding to standard treatments. It’s mainly designed to find the safest dose and see early signs the treatment might work.
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.
- UC San Diego Moores Cancer Center · 4 studies
- City of Hope · 3 studies
- UC Irvine Health/Chao Family Comprehensive Cancer Center · 3 studies
- UCI Health - Chao Family Comprehensive Cancer Center and Ambulatory Care · 3 studies
- Desert Regional Medical Center · 2 studies
- Mercy Cancer Center - Sacramento · 2 studies
- Pacific Central Coast Health Center-San Luis Obispo · 2 studies
- Stanford University School of Medicine · 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 1,320 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.