Clinical trials · California
Oncology clinical trials in California
We’re tracking 136 recruiting oncology studies with a site in California — including Phase 1, Phase 2 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT06401330RecruitingPhase 3
Personalized treatment for pediatric Wilms tumor
This study tailors treatment for children with Wilms tumor based on specific tumor features and risk factors. The goal is to give the right amount of therapy to each patient to minimize side effects while maintaining high cure rates.
Palo Alto, CaliforniaAges Up to 30 years - NCT06418204Recruiting
Cannabis use among cancer patients in community clinics
This study looks at how cancer patients use cannabis (marijuana) and cannabis products to manage symptoms during chemotherapy or immunotherapy. The goal is to learn about the benefits and risks so doctors can better guide patients.
Antioch, CaliforniaAges 18 years+ - NCT06368817RecruitingPhase 2
Lower radiation dose for children with CNS germinoma
This trial will see if giving a lower dose of radiation therapy can still effectively treat children and young adults with a type of brain tumor called germinoma. The goal is to reduce side effects while keeping the cancer under control.
Palo Alto, CaliforniaAges 3–29 - NCT06377852RecruitingPhase 3
CDK4/6 inhibitor dosing study for older adults with metastatic breast cancer
This study tests two targeted therapy drugs, palbociclib and ribociclib, combined with hormone therapy for people aged 60 or older with hormone receptor-positive, HER2-negative metastatic breast cancer. The goal is to see how well this treatment works and to gather information that may help improve dosing for older adults.
Eureka, CaliforniaAges 60 years+ - NCT06343402RecruitingPhase 1
Study of BBO-8520 for advanced KRAS G12C lung cancer
This trial tests a new oral medication called BBO-8520 for advanced lung cancer with a specific gene change (KRAS G12C mutation). It aims to see if the drug is safe and effective, and may be combined with another drug (pembrolizumab) in some groups.
La Jolla, CaliforniaAges 18 years+ - NCT06326411RecruitingPhase 1
Testing NST-628 pills for advanced solid tumors with RAS/MAPK changes
This trial tests an experimental pill called NST-628 for people with advanced solid tumors that have specific genetic changes in the RAS/MAPK pathway. The goal is to see if it is safe and effective when other treatments are no longer working.
Westwood, Los Angeles, CaliforniaAges 18 years+ - NCT06247787RecruitingPhase 1
Imetelstat plus chemo for relapsed leukemia in kids
This trial tests a new drug called imetelstat combined with two chemotherapy drugs (fludarabine and cytarabine) for children and teens with acute myeloid leukemia (AML), myelodysplastic syndrome (MDS), or juvenile myelomonocytic leukemia (JMML) that has come back or not responded to treatment. The goal is to find the safest dose of imetelstat and see if it helps control the cancer.
Orange, CaliforniaAges 1–18 - 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 - NCT03452774Recruiting
AI matches your cancer tests to possible treatment trials
This trial uses an AI system to help match people with certain cancer types and specific tumor test results (like gene or protein markers) to relevant clinical trials. It may help you and your doctor find studies that fit your cancer biology faster.
Duarte, CaliforniaAges Any age - NCT06026410RecruitingPhase 1
KO-2806 for advanced solid tumors
This trial tests a new drug called KO-2806, alone or with other treatments, for people with advanced solid tumors that have specific gene changes (like HRAS or KRAS mutations). It may help if standard treatments have stopped working.
Los Angeles, CaliforniaAges 18 years+ - NCT06001788RecruitingPhase 1
Ziftomenib for relapsed or refractory acute myeloid leukemia
This trial tests a new drug combination called ziftomenib for people whose acute myeloid leukemia (AML) has come back or hasn't responded to treatment. Researchers will check how safe it is and what side effects happen.
Los Angeles, CaliforniaAges 18 years+ - NCT05976763RecruitingPhase 3
Testing continuous vs. intermittent zanubrutinib for older adults with mantle cell lymphoma
This trial tests whether taking the targeted drug zanubrutinib continuously is better than taking it on a schedule with breaks for older adults with untreated mantle cell lymphoma. The goal is to find a treatment that works while reducing side effects.
Beverly Hills, CaliforniaAges 60 years+ - NCT05946213RecruitingPhase 3
Shorter radiation treatment for high-risk prostate cancer
This trial tests whether a shorter course of radiation works as well as the usual longer course for people with high-risk prostate cancer. The goal is to keep cancer control while possibly reducing treatment time and inconvenience.
Fremont, 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+ - NCT05879926RecruitingPhase 3
Testing chemo after hormone therapy in premenopausal early breast cancer
This Phase 3 trial checks whether adding chemotherapy after standard hormone-blocking treatment works better for some premenopausal women with early-stage, ER-positive, HER2-negative breast cancer. It targets patients with limited lymph node spread and a lower-to-intermediate tumor “recurrence” risk score.
San Francisco, CaliforniaAges 18–60 - NCT05812807RecruitingPhase 3
Pembrolizumab versus monitoring after triple-negative breast cancer response
This trial checks whether giving pembrolizumab (an immunotherapy) after surgery helps people with triple-negative breast cancer reduce the chance of the cancer coming back, compared with close monitoring only. It’s for patients who had no remaining invasive cancer after neoadjuvant chemotherapy plus pembrolizumab.
San Jose, CaliforniaAges 18 years+ - NCT05711667RecruitingPhase 3
Letermovir to prevent CMV after stem cell transplant in kids
This trial tests whether the medicine letermovir can prevent a common virus (CMV) from coming back after an allogeneic stem cell transplant in children. It may help lower the risk of CMV infection during the vulnerable period right after transplant.
Oakland, CaliforniaAges 2–18 - NCT05735184RecruitingPhase 1
Ziftomenib with AML medicines for NPM1- or KMT2A-mutated leukemia
This Phase 1 trial tests how safe and tolerable ziftomenib is when combined with standard AML medicines (like venetoclax and azacitidine, and other chemo options) in people with AML. It’s for AML patients who have specific genetic changes (NPM1 mutation or KMT2A rearrangement) and helps doctors find the best, safest dose plan.
La Jolla, CaliforniaAges 18 years+ - NCT05720117RecruitingPhase 1
Study drug for advanced solid tumors with limited treatments left
This Phase 1 study tests PYX-201 in people with advanced (grown or spread) solid cancers to see if it is safe and how it works. You may qualify if your cancer has had up to a couple of prior treatments and you can safely take study medicines and undergo required testing like a tumor biopsy.
Los Angeles, CaliforniaAges 18 years+ - NCT05727176RecruitingPhase 2
Futibatinib for advanced bile duct cancer with FGFR2 changes
This trial tests futibatinib, a targeted pill, in people with advanced (unresectable) or metastatic bile duct cancer that has an FGFR2 fusion or rearrangement. It may help shrink tumors after standard chemotherapy has stopped working.
La Jolla, CaliforniaAges 18 years+ - NCT05705531Recruiting
Cardiac MRI study of heart health after Hodgkin lymphoma treatment
This study looks at how certain blood-related “growth patterns” connect to long-term heart health after treatment for classical Hodgkin lymphoma. It may help doctors better predict who could develop heart problems and how to monitor them over time.
Duarte, CaliforniaAges 7 years+ - NCT05702645Recruiting
Down syndrome long-term study after leukemia treatment
This study follows children and young adults with Down syndrome who have survived acute leukemia (ALL or AML) to learn about their longer-term health after treatment ends. It may help families and doctors understand what health problems to watch for and how to provide better follow-up care.
Oakland, CaliforniaAges 6–39 - NCT05677490RecruitingPhase 3
Chemotherapy with or without immunotherapy for advanced stomach or esophagus cancer
This trial compares two chemotherapy combinations, with or without an immunotherapy drug called nivolumab, for people with advanced stomach, esophagus, or gastroesophageal junction cancer that cannot be removed by surgery. The goal is to see which treatment works better and if adding immunotherapy helps.
Antioch, CaliforniaAges 18 years+ - NCT05673148RecruitingPhase 2
Adding targeted tumor treatment to standard therapy for limited metastatic colorectal cancer
This trial tests whether adding a precise, targeted treatment to destroy remaining cancer spots (called total ablative therapy) after initial chemotherapy can improve outcomes for people with limited metastatic colorectal cancer. It aims to see if this extra treatment is safe and effective.
Beverly Hills, CaliforniaAges 18 years+
Oncology trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting oncology studies listed above.
- Cedars-Sinai Medical Center · 7 studies
- Kaiser Permanente-Oakland · 7 studies
- City of Hope · 5 studies
- Kaiser Permanente Downtown Commons · 5 studies
- Kaiser Permanente Dublin · 5 studies
- Kaiser Permanente Fresno · 5 studies
- Kaiser Permanente Medical Center - Santa Clara · 5 studies
- Kaiser Permanente Modesto · 5 studies
What taking part in a oncology 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.
Oncology trials in other states
Common questions
- Are there oncology clinical trials in California?
- Yes. We're currently tracking 136 recruiting oncology 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 oncology 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 oncology 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 oncology 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.