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, Phase 2/Phase 3 and Phase 3 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT05918640RecruitingPhase 1/Phase 2
Lurbinectedin for cancers with specific EWS-related gene fusions
This early-phase study tests lurbinectedin, a chemotherapy medicine, in children and young adults whose solid tumors have a specific “FET fusion” gene change. It may help shrink tumors that have come back or did not respond to prior treatment, depending on the exact fusion type.
Los Angeles, CaliforniaAges 10 years+ - NCT05923684Recruiting
English prostate cancer visit feedback tool for shared decisions
This trial tests an English computer tool that gives feedback during prostate cancer treatment visits. It aims to help you and your clinician make more informed, shared decisions about next treatment steps.
Los Angeles, CaliforniaAges 18 years+ - NCT05922761RecruitingPhase 2
Belumosudil for lung scar prevention or treatment after transplant
This Phase 2 study tests belumosudil to treat or prevent bronchiolitis obliterans (BOS), a lung complication that can happen after a stem cell transplant. If you qualify, you would be checked closely with breathing tests and scans, and watched for safety and whether lung function improves or stays stable.
Stanford, CaliforniaAges 18 years+ - 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+ - NCT05886049RecruitingPhase 1
Testing a menin drug with standard chemo for newly diagnosed AML
This early-phase study tests a menin inhibitor drug (SNDX-5613) combined with standard induction chemotherapy (daunorubicin plus cytarabine) in newly diagnosed AML with specific gene changes (NPM1 or FLT3 status, or MLL/KMT2A or NUP98). It may help patients whose AML has these genetic features respond better to intensive treatment.
Orange, CaliforniaAges 18–75 - NCT05893888RecruitingPhase 2/Phase 3
Testing three investigational drugs for mouth and lung cancers
This trial tests whether PRV111, PRV211, and PRV131 are safe and work better than expected for certain mouth (lip/oral cavity) cancers and lung cancers. It may help by trying a new approach given directly to the tumor and then monitoring how well it shrinks and how safe it is.
Duarte, CaliforniaAges 18–100 - NCT05865535RecruitingPhase 1
Dose study of AV-380 for cancer-related weight loss
This Phase 1 trial tests a new drug (AV-380) in people with solid tumor cancer who are losing weight and muscle because of cancer. It mainly helps researchers find a safe dose and see how the body responds, and it may offer a new option for cancer-related cachexia.
Newport Beach, CaliforniaAges 18 years+ - NCT05855200RecruitingPhase 3
Dostarlimab around surgery for certain untreated colon cancers
This trial studies dostarlimab given around the time of colon cancer surgery for people with untreated, resectable (operable) stage T4N0 or stage III colon cancer that has specific tumor markers. It may help shrink or eliminate the cancer before or after surgery by boosting the immune response.
Los Angeles, CaliforniaAges 18 years+ - NCT05828069RecruitingPhase 2
Tovorafenib for young people with worsening Langerhans cell histiocytosis
This Phase 2 trial tests tovorafenib (DAY101) to treat children and young people whose Langerhans cell histiocytosis (LCH) is getting worse, came back, or did not respond to prior treatment. It may help by targeting certain gene changes found in the LCH.
Downey, CaliforniaAges 6 months–22 years - NCT05830058RecruitingPhase 2
PET-guided focused radiation for limited worsening lung, melanoma, kidney cancer
This Phase 2 study tests whether using a PET scan to guide focused radiation (SBRT) can control a small number of cancer spots that are starting to grow despite prior treatment. It may help patients avoid wider radiation by targeting only the limited progressing areas.
Duarte, CaliforniaAges 18 years+ - NCT05768139RecruitingPhase 1/Phase 2
Testing a new targeted drug for advanced solid tumors with PI3Kα mutation
This trial tests tersolisib, a new targeted medicine, in adults with advanced or hard-to-remove solid cancers. It focuses on tumors that have a specific genetic change (PI3Kα mutation) to see how well the treatment works and what side effects it causes.
Los Angeles, CaliforniaAges 18 years+ - NCT05746182Recruiting
Genetic testing program for pancreatic neuroendocrine tumors
This study offers genetic (inherited) testing for people with pancreatic neuroendocrine neoplasms. The goal is to see who may have a genetic predisposition, which can help guide medical care and family risk.
San Diego, CaliforniaAges 18 years+ - NCT05773144Recruiting
Exercise program during chemotherapy for colon cancer recovery
This trial tests an aerobic exercise plan during chemotherapy for people with stage II or III colon cancer. It compares different exercise approaches to see if exercise can be done safely and may improve how you tolerate treatment and recovery.
Oakland, CaliforniaAges 18 years+ - NCT05733598RecruitingPhase 2
RP2 plus standard treatment for advanced liver or bile cancers
This Phase 2 trial studies whether RP2, added to standard second-line treatment, can improve outcomes for people with advanced liver cancer or bile duct/gallbladder cancer. It may help by training the immune system to better attack the cancer after the cancer has already grown despite prior treatment.
Beverly Hills, CaliforniaAges 18 years+ - NCT05733689RecruitingPhase 1
Testing new pre-surgery treatment for stomach and esophagus cancer
This Phase 1 trial tests how well a tailored (response-adapted) chemotherapy plan works before surgery for stomach or gastroesophageal junction cancer. It aims to improve treatment planning while checking early safety.
Orange, CaliforniaAges 18 years+ - NCT05194397RecruitingPhase 2
Exercise plus NR supplement to boost fitness after stem-cell transplant
This trial tests whether a supervised exercise program, plus an NR supplement, can improve fitness in young people who have had an allogeneic (donor) stem-cell transplant for certain blood cancers or bone marrow conditions. It’s meant to help with energy and physical ability while monitoring safety.
Duarte, CaliforniaAges 10–30 - NCT05687110RecruitingPhase 1
Testing novobiocin for tumors with DNA repair gene changes
This Phase 1 study tests whether novobiocin is safe and finds the best dose for people whose tumors have specific DNA repair gene mutations. It may help if your cancer is hard to treat with standard options, including certain patients who already tried PARP inhibitors.
San Diego, CaliforniaAges 18 years+ - NCT05687123RecruitingPhase 1
Adding sunitinib to Lutathera for pancreatic neuroendocrine tumors
This early-phase study tests whether adding sunitinib (a targeted pill) to Lutathera (a radioactive treatment) works better for people with advanced pancreatic neuroendocrine tumors. It also checks safety, since this combination has not been widely studied yet.
Duarte, CaliforniaAges 18 years+ - NCT05675410RecruitingPhase 3
Testing two-drug treatment versus standard for Hodgkin lymphoma
This Phase 3 study compares today’s standard treatment for classic Hodgkin lymphoma with a new combination using brentuximab vedotin and nivolumab. The goal is to see which approach works better and is safe for newly diagnosed patients with early-stage disease.
Carmichael, CaliforniaAges 5–60 - NCT05702229RecruitingPhase 2
Study of combined medicines for advanced stomach cancer with Claudin18.2
This Phase 2 study tests new combination treatments for advanced stomach or stomach-esophagus junction cancer that cannot be removed by surgery. It may help people whose tumors are positive for a marker called Claudin18.2, which the study uses to choose who can receive the treatment.
Los Angeles, CaliforniaAges 18 years+ - NCT05688215RecruitingPhase 1/Phase 2
Zimberelimab and quemliclustat with chemotherapy for pancreatic cancer
This trial studies how well zimberelimab and quemliclustat work together with standard chemotherapy for people with borderline resectable or locally advanced pancreatic cancer. It may help shrink the tumor and make treatment more effective before or around the time surgery is considered for some patients.
Los Angeles, CaliforniaAges 18 years+ - NCT05694715RecruitingPhase 1
Test combo treatment for cancers with DNA repair gene mutations
This Phase 1 study tests a combination of medicines (including niraparib and irinotecan) for advanced solid tumors that have specific DNA repair gene changes, such as BRCA1/2 or related defects. It aims to see whether the treatment can shrink tumors and is safe enough to continue studying.
San Francisco, CaliforniaAges 18 years+ - NCT05705219Recruiting
3D ultrasound scan to guide treatment decisions in liver cancer
This study tests whether a special 3D ultrasound scan (using contrast) can help support decisions for people with colorectal cancer that has spread to the liver. If you have planned new cancer treatment, the scan may add information to help doctors guide care.
Palo Alto, CaliforniaAges 18 years+ - NCT05642611RecruitingPhase 3
Cooling and compression for nerve protection during chemotherapy
This study tests whether using cooling and/or compression on the arms or legs can prevent nerve damage that can happen from certain chemotherapy drugs. If you get eligible chemo soon, this may help lower the chance of painful numbness or tingling during treatment.
Martinez, 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 · 7 studies
- UC Irvine Health/Chao Family Comprehensive Cancer Center · 4 studies
- Cedars-Sinai Medical Center · 3 studies
- UCI Health - Chao Family Comprehensive Cancer Center and Ambulatory Care · 3 studies
- Beverly Hills Cancer Center · 2 studies
- Children's Hospital Los Angeles · 2 studies
- Children's Hospital of Orange County · 2 studies
- City of Hope at Irvine Lennar · 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.