Clinical trials · California
Cancer clinical trials in California
We’re tracking 1,311 recruiting cancer studies with a site in California — including Early Phase 1, Phase 1, Phase 1/Phase 2, Phase 2 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- 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+ - 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.
Orange, 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+ - 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 Francisco, CaliforniaAges 18 years+ - NCT06055868Recruiting
HIV, oral cancer, and health equity study
This study looks at the experiences of people living with HIV who also have oral or throat cancer. The goal is to understand health disparities and improve care.
San Francisco, CaliforniaAges 18 years+ - 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+ - 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 - 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+ - NCT06069570RecruitingPhase 1
Gamma delta T cells and low dose radiation for advanced lung or bone cancer
This trial tests a new type of immune cell called gamma delta T cells combined with low-dose radiation to treat people with advanced lung cancer or solid tumors that have spread to the bone. It is only for patients who have already tried standard treatments and either didn't get better or couldn't tolerate them.
Beverly Hills, CaliforniaAges 18 years+ - 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+ - NCT06121180RecruitingPhase 2
Cemiplimab plus ziv-aflibercept for metastatic uveal melanoma
This trial tests two drugs, cemiplimab and ziv-aflibercept, together for people whose uveal melanoma has spread. It may be an option if previous treatments have stopped working or you haven't had treatment yet.
Los Angeles, CaliforniaAges 18 years+ - NCT06123286RecruitingEarly Phase 1
Tart cherry and omega-3s for joint pain from hormone therapy
This study tests whether taking tart cherry and omega-3 supplements can help reduce joint pain and stiffness caused by aromatase inhibitors (a common breast cancer treatment). If you have bothersome joint pain while on this hormone therapy, you may be able to join.
Los Angeles, CaliforniaAges 18 years+ - NCT06196008Recruiting
Exercise coaching for older adults having lung cancer surgery and their caregivers
This study tests if a telephone-based physical activity coach helps older adults (65+) recover better after lung cancer surgery compared to self-monitored activity. Caregivers can also join to learn how to support their loved one and improve their own well-being.
Upland, CaliforniaAges 18 years+ - NCT06207032Recruiting
Cancer biobank registry study
This study collects blood samples and health information from people diagnosed with cancer to build a research database. It may help future patients by enabling better understanding and treatment of cancer.
Whittier, CaliforniaAges 18–99 - NCT06216301RecruitingPhase 3
Electric fields with immunotherapy and chemo for advanced lung cancer
This trial tests adding a device that delivers electric fields (Tumor Treating Fields) to standard immunotherapy and chemotherapy for people with advanced non-small cell lung cancer that has not been treated before. It may help slow tumor growth.
Sacramento, CaliforniaAges 18 years+ - NCT06221800Recruiting
Gut bacteria and lung cancer treatment side effects study
This study looks at how the bacteria in your gut (microbiome) might affect how well your lung cancer treatment works and what side effects you experience. The goal is to learn if certain gut bacteria can predict treatment response or side effects for people with advanced non-small cell lung cancer.
Orange, CaliforniaAges 18 years+ - NCT06228482RecruitingPhase 1
Targeted radioactive therapy for advanced lung cancer
This trial tests a new targeted radioactive drug that seeks out a specific marker on lung cancer cells. It first uses a low-dose imaging scan to see if the cancer cells have this marker, then gives a higher-dose treatment to destroy those cells.
Sacramento, CaliforniaAges 18 years+ - NCT06266299RecruitingPhase 1
Study of KK2269 for adults with solid tumors
This trial tests a new drug called KK2269 for adults with solid tumors that have spread or cannot be removed by surgery. It aims to see if the drug is safe and effective, possibly as a treatment option for certain cancers like lung or stomach cancer.
Duarte, CaliforniaAges 18 years+ - NCT06311214RecruitingPhase 2
Personalized ADC therapy for advanced solid tumors
This trial tests personalized antibody-drug conjugates (ADCs) for advanced solid tumors. It looks for specific proteins on your tumor cells to match you with a treatment that targets them directly.
Irvine, CaliforniaAges 18 years+ - NCT06311227RecruitingPhase 2
Venetoclax for relapsed hairy cell leukemia
This trial tests a targeted pill called venetoclax for people whose hairy cell leukemia has returned after other treatments. It aims to see if venetoclax can help control the disease and improve blood counts.
Duarte, CaliforniaAges 18 years+ - NCT06312176RecruitingPhase 3
Study of new drugs for HR+/HER2- advanced breast cancer
This trial tests two new drugs (sacituzumab tirumotecan and pembrolizumab) against standard treatments for a type of advanced breast cancer that is hormone receptor positive and HER2 negative. It's for people whose cancer has worsened despite hormone therapy with a CDK4/6 inhibitor.
Fullerton, CaliforniaAges 18 years+ - NCT05199259Recruiting
Blood test study for people at risk for or with liver cancer
This trial tests a new blood test to help detect liver cancer (HCC) or confirm it’s not present in people with cirrhosis who are being monitored. It may help improve how doctors screen for liver cancer and decide who needs further imaging or treatment.
Escondido, 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
- City of Hope Orange County Lennar Foundation Cancer Center · 5 studies
- University of California, San Francisco · 3 studies
- Los Angeles General Medical Center · 2 studies
- UC San Diego Moores Cancer Center · 2 studies
- UCLA / Jonsson Comprehensive Cancer Center · 2 studies
- University of California, Irvine Medical Center / UC Irvine Health · 2 studies
- USC / Norris Comprehensive Cancer Center · 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.