Clinical trials · California
Cancer clinical trials in California
We’re tracking 1,312 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
- NCT06875310RecruitingPhase 3
Study of adagrasib plus pembrolizumab plus chemotherapy for KRAS G12C lung cancer
This trial tests if adding the targeted drug adagrasib to standard immunotherapy and chemotherapy helps people with a specific KRAS G12C mutation in non-squamous non-small cell lung cancer that has spread. It is for people who have not had previous treatment for advanced disease.
Fullerton, CaliforniaAges 18 years+ - NCT05253651RecruitingPhase 3
Tucatinib plus trastuzumab with chemo for HER2+ metastatic colon cancer
This trial tests whether adding tucatinib and trastuzumab to standard chemotherapy works better than standard treatment alone for people with HER2-positive metastatic colon or rectal cancer. It aims to improve how long people live and how well tumors respond as first treatment for advanced disease.
Anaheim, CaliforniaAges 18 years+ - NCT04879329RecruitingPhase 2
Study for HER2-positive bladder cancer after limited treatment
This Phase 2 trial tests disitamab vedotin alone or with pembrolizumab for urothelial (bladder/urinary tract) cancer that has HER2-positive tumors. It aims to shrink tumors and improve outcomes, including for people who have had limited prior treatment or specific prior drug exposures.
Anaheim, CaliforniaAges 18 years+ - NCT04364503Enrolling by invitation
Study that analyzes de-identified patient samples and records
This trial checks how well patient samples and health records can be analyzed when names are removed (“de-identified”) and privacy rules are followed. You might be included if you agree in writing and your sample data can be used for this research and/or your doctor requests it.
Los Angeles, CaliforniaAges Any age - NCT05099003RecruitingPhase 1/Phase 2
Selinexor plus radiation for newly diagnosed brain tumors
This trial studies whether adding selinexor to standard radiation can improve outcomes for children and young teens with certain newly diagnosed high-grade brain tumors (including DIPG). It’s designed for specific tumor types and genetic markers, and people must be able to start treatment soon after diagnosis.
Loma Linda, CaliforniaAges 1–21 - NCT06520345RecruitingPhase 3
A new treatment for advanced prostate cancer that has stopped responding to hormone therapy
This trial tests a new radioactive drug (177Lu-TLX591) plus standard care against standard care alone for men with metastatic castration-resistant prostate cancer that has progressed on an androgen receptor pathway inhibitor. The goal is to see if this targeted radiation can help control the cancer.
Orange, CaliforniaAges 18 years+ - NCT05307705RecruitingPhase 1
Testing LOXO-783 for PIK3CA-mutated cancers
This trial tests an experimental drug (LOXO-783) for people with advanced breast cancer or other solid tumors that have a specific change in the PIK3CA gene. The goal is to see if the drug can shrink or slow the growth of the cancer.
Los Angeles, CaliforniaAges 18 years+ - NCT07089641RecruitingPhase 1
Testing a new pill for EGFR-mutated glioblastoma
This trial tests a new pill called ERAS-801 for people with a type of brain tumor (glioblastoma) that has a specific change in the EGFR gene. The study is for patients whose tumor has come back after treatment, or for those 70 or older who are newly diagnosed.
Los Angeles, CaliforniaAges 18 years+ - NCT07459634RecruitingPhase 2
Lurbinectedin with durvalumab for extensive-stage small cell lung cancer
This trial tests a new combination of two drugs, lurbinectedin and durvalumab, for people with extensive-stage small cell lung cancer (ES-SCLC) who have already received four cycles of standard platinum-based chemotherapy along with durvalumab. The goal is to see if this combination can help control the cancer further.
Los Angeles, CaliforniaAges 18 years+ - NCT04520139RecruitingPhase 1/Phase 2
NAC to help prevent chemo brain fog in ovarian cancer
This Phase 1/2 study tests whether taking NAC (a supplement medicine) can help prevent or reduce memory and thinking problems after platinum chemotherapy. It targets people with advanced ovarian, fallopian tube, or primary peritoneal cancer who are starting at least six cycles of platinum-based treatment.
Orange, CaliforniaAges 18 years+ - NCT03618550RecruitingPhase 2
Pembrolizumab plus chemotherapy for relapsed Hodgkin lymphoma
This study tests a combination of the immunotherapy drug pembrolizumab with a chemotherapy regimen called GVD for patients whose Hodgkin's lymphoma has not responded or has returned after initial treatment. The goal is to see if this combination works better than standard approaches.
Duarte, CaliforniaAges 18 years+ - NCT06422806RecruitingPhase 3
Immunotherapy plus chemo for aggressive sarcoma
This trial compares a combination of immunotherapy (pembrolizumab) plus chemotherapy (doxorubicin) versus chemotherapy alone for people with aggressive, poorly differentiated sarcomas that have spread or cannot be removed. The goal is to see if adding immunotherapy helps shrink tumors or slow their growth better than chemotherapy alone.
Dublin, CaliforniaAges 18 years+ - NCT05333458RecruitingPhase 2
Atezolizumab plus selinexor for advanced alveolar soft tissue sarcoma
This Phase 2 trial tests whether combining atezolizumab with selinexor can slow or shrink advanced alveolar soft part sarcoma (ASPS) in people age 12 and older. It may help by improving the immune system’s ability to fight the cancer and stopping cancer cell growth signals.
Los Angeles, CaliforniaAges 12 years+ - NCT02984761Recruiting
Surgery vs focused radiation for early lung cancer
This trial compares two ways to treat early-stage lung cancer: surgery or a precise type of radiation called stereotactic radiotherapy. It aims to find out which approach works best for people whose cancer is small and has not spread.
West Los Angeles, CaliforniaAges 18 years+ - NCT03053193Recruiting
Testing gene activity to guide breast cancer treatment
This study links breast tumor test results from MammaPrint and optional BluePrint (and full genetic data) with real-world clinical information to understand which new gene activity patterns matter. It may help future patients by improving how doctors use these tests to guide care.
Redding, CaliforniaAges 18 years+ - NCT03113643RecruitingPhase 1
SL-401 with standard drugs for hard-to-treat blood cancers
This Phase 1 study tests SL-401, given with azacitidine and sometimes venetoclax, to treat acute myeloid leukemia (AML), high-risk myelodysplastic syndrome (MDS), or blastic plasmacytoid dendritic cell neoplasm (BPDCN). It aims to find a safe dose and see whether the combination can improve blood cancer control.
Duarte, CaliforniaAges 18 years+ - NCT03118986RecruitingPhase 2
Olanzapine to prevent nausea during chemo in children
This study tests whether adding olanzapine can better control nausea (CIV) in children getting very nausea-causing chemotherapy or transplant treatment. It may help reduce severe nausea and vomiting while they’re in the hospital.
San Francisco, CaliforniaAges 2.5 years–18 years - NCT03207854Recruiting
Donate blood and immune samples for cancer, blood, or healthy volunteers study
This study collects blood and immune-related samples from people with cancer, certain immune-related blood conditions, or healthy volunteers. It helps researchers understand immune changes and may support future diagnosis or treatments.
Los Angeles, CaliforniaAges 19 years+ - NCT03448926Recruiting
DCIS test registry to guide radiation and drug decisions
This study collects information from people with breast ductal carcinoma in situ (DCIS) to see how a specific lab test (DCISionRT) may help predict who benefits from radiation and/or certain medications. Your results and clinical details are gathered during routine care, not necessarily to change treatment right away.
San Mateo, CaliforniaAges 30–85 - NCT03492151Recruiting
Scans pancreatic cysts during a biopsy procedure
This trial tests a special camera (confocal laser endomicroscopy) used during an ultrasound-guided needle biopsy to help tell what type of pancreatic cyst is present. It may help doctors decide faster whether surgery is needed.
Stanford, CaliforniaAges 18 years+ - NCT03550391RecruitingPhase 3
Surgery-like brain radiation vs avoiding the memory center
This trial compares two ways of giving radiation to the brain for people with 5 or more brain metastases: focused stereotactic radiosurgery, or a whole-brain approach that tries to spare the memory area (with memantine). It aims to see which method better protects thinking and memory while still treating the tumors.
Lancaster, CaliforniaAges 18 years+ - NCT03587844RecruitingPhase 2
Test dosing of brentuximab for skin lymphoma
This Phase 2 study tests how brentuximab vedotin should be dosed for people with mycosis fungoides or Sezary syndrome (skin T-cell lymphoma), and also for lymphomatoid papulosis. It may help improve how well the treatment works while tracking side effects.
Stanford, CaliforniaAges 18 years+ - NCT03620786Recruiting
HIFU experience study for treating parts of the prostate
This observational study looks at outcomes after people choose HIFU (high-intensity focused ultrasound) to treat only a targeted area of the prostate. It may help doctors better understand how well HIFU works and what follow-up imaging or testing shows over time.
Los Angeles, CaliforniaAges 40–85 - NCT03659448RecruitingPhase 3
Test drug that helps map colon and rectal cancer during surgery
This Phase 3 study tests SGM-101, a drug used during surgery to help doctors better outline primary, recurrent, and spread (metastatic) colorectal cancer. It may improve how completely tumors are identified and removed during an operation.
Duarte, 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
- University of California, San Francisco · 4 studies
- USC / Norris Comprehensive Cancer Center · 4 studies
- Keck Medicine of USC · 3 studies
- Los Angeles General Medical Center · 3 studies
- Stanford University · 3 studies
- UC San Diego Moores Cancer Center · 3 studies
- University of California, Irvine Medical Center / UC Irvine Health · 3 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 1,312 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.