Clinical trials · California
Neoplasms clinical trials in California
We’re tracking 249 recruiting neoplasms 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
- NCT06022965Recruiting
Telemedicine support for older adults with cancer
This study uses telemedicine (video or phone visits) to help older adults with cancer, especially those in underserved communities, get better care. If you're 65 or older and starting a new cancer treatment, you may be able to join from home in English, Spanish, or Chinese.
Duarte, CaliforniaAges 65 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+ - NCT05803382RecruitingPhase 1
Adding a new drug to capecitabine for metastatic colorectal cancer
This Phase 1 study tests a new anti-cancer drug (ZEN003694) added to the usual chemotherapy capecitabine. It is for adults with colorectal cancer (and possibly other cancers) that has spread or cannot be removed and has continued despite prior standard treatment.
Orange, CaliforniaAges 18 years+ - NCT05786924RecruitingPhase 1/Phase 2
Targeted cancer drug study for RAS/RAF mutation-positive tumors
This Phase 1/2 study tests S241656 (a targeted cancer medicine) in people whose cancers have certain “RAS/RAF” gene changes. It may help shrink tumors or control cancer growth, and also finds the safest dose and best way to use the drug.
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+ - 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 - 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+ - NCT05663502Recruiting
Donate blood and tissue samples for HIV-related cancer research
This study collects blood and tissue samples to help researchers learn more about cancers related to HIV/AIDS. You may be able to join if you’re 18+ and have HIV and a cancer diagnosis, or (if HIV-negative) a certain cancer that is closely linked to AIDS-related cancers.
La Jolla, CaliforniaAges 18 years+ - NCT05672108RecruitingPhase 2
Chemo delivered into lung tumors using a catheter
This trial studies a treatment that delivers chemotherapy directly to lung tumors by placing a catheter into lung blood vessels. It may help people with lung cancer or lung metastases that are growing despite standard treatment, or who cannot tolerate it.
Duarte, CaliforniaAges 18 years+ - NCT05372614RecruitingPhase 1
Testing trastuzumab deruxtecan and neratinib for HER2-positive cancers
This trial tests a combination of two targeted drugs, trastuzumab deruxtecan (Enhertu) and neratinib, for people with solid tumors that have a HER2 gene change. The goal is to see if the combination is safe and works well for cancers that have not responded to at least one prior treatment.
Duarte, CaliforniaAges 18 years+ - NCT05372640RecruitingPhase 1
Drug combo trial for rare cancers with shared NUT features
This Phase 1 trial tests the safety and early signs of effectiveness of combining two anti-cancer drugs (ZEN003694 and abemaciclib) in teens and adults with metastatic or unresectable NUT carcinoma, breast cancer, and other solid tumors. It may help by finding a safer dose and whether the drug combination can shrink or control tumors that do not respond to standard treatments.
Los Angeles, CaliforniaAges 12 years+ - NCT05123365RecruitingPhase 1/Phase 2
Testing a dose of N-acetylcysteine for certain blood cancers
This Phase 1/2 study tests what dose of N-acetylcysteine (NAC) is safe and potentially helpful for people with essential thrombocythemia, polycythemia vera, or myelofibrosis. It focuses on people who still have symptoms and meet blood and health requirements so researchers can monitor side effects and symptom changes.
Orange, CaliforniaAges 18 years+ - NCT04895709RecruitingPhase 1/Phase 2
Testing a new cancer drug for advanced solid tumors
This early-phase trial tests how well a new drug (BMS-986340) works alone and combined with other treatments in people with advanced solid tumors that have progressed despite standard care. It also studies tumor samples to look for biomarkers that may predict who benefits.
Clovis, CaliforniaAges 18 years+ - NCT04901702RecruitingPhase 1/Phase 2
Onivyde plus talazoparib or temozolomide for resistant solid tumors
This trial tests whether adding Onivyde to either talazoparib or temozolomide can shrink or control hard-to-treat (refractory or recurring) cancers in children and young adults. It aims to find safer dosing first, then look at how well the treatment works—especially for Ewing sarcoma.
Palo Alto, CaliforniaAges 1–30 - NCT04858256RecruitingPhase 2
Pacritinib for relapsed or resistant T-cell blood cancers
This Phase 2 trial studies pacritinib, an oral medicine, for T-cell lymphoma/leukemia that has come back or did not respond to prior treatment. It aims to see how well pacritinib can control the cancer and improve outcomes.
Duarte, CaliforniaAges 18 years+ - NCT04641247RecruitingPhase 2
Long-term niraparib follow-up for people already benefiting
This study looks at continuing niraparib for a longer time in people who already finished an earlier niraparib trial and are still benefiting. It may help understand how safe and useful long-term treatment is for you.
Encinitas, CaliforniaAges 18 years+ - NCT04242095Recruiting
Immunotherapy side effects research study
This study collects blood, stool, and tissue samples from people who have had side effects from immunotherapy (a type of cancer treatment that helps your immune system fight cancer). It aims to learn more about these side effects, so doctors can better manage them in the future.
Arroyo Grande, CaliforniaAges Any age - NCT03816345RecruitingPhase 1
Nivolumab for advanced cancer with autoimmune disease
This trial tests whether the immunotherapy drug nivolumab can safely treat advanced cancer in people who also have an autoimmune disease like rheumatoid arthritis, lupus, or multiple sclerosis. It aims to find out if the drug may help control cancer while managing their autoimmune condition.
Palo Alto, 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+ - 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+ - NCT01750619Recruiting
Endoscopic removal of early and cancer GI growths
This trial looks at outcomes after doctors remove abnormal or cancerous growths in the digestive tract using an endoscope (a flexible camera passed through the body). It may help improve how safely and effectively these procedures are done.
San Francisco, CaliforniaAges 18 years+ - NCT00900198Recruiting
Give cancer tissue samples to help future cancer research
This study collects tissue or other cancer-related samples to help researchers better understand cancer and develop better tests or treatments. You can join if you are being evaluated for or treated for cancer, and you agree to let your samples be used for research.
Sacramento, CaliforniaAges 2 months+ - NCT06465069RecruitingPhase 1
Study of an experimental drug for advanced bladder and other cancers
This trial tests a new drug called LY4052031 for people with advanced or metastatic cancers, especially bladder cancer. The drug aims to slow or stop tumor growth. Doctors will check if it is safe and how well it works.
Duarte, CaliforniaAges 18 years+ - NCT07741968Recruiting
Online program to ease fear of cancer returning
This study tests an online program designed to help women with advanced or certain types of breast or gynecologic cancer manage their fear of the disease progressing or returning. The program aims to reduce anxiety and improve quality of life.
Arcadia, CaliforniaAges 18 years+
Neoplasms trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting neoplasms studies listed above.
- City of Hope · 8 studies
- USC Norris Comprehensive Cancer Center · 5 studies
- City of Hope at Antelope Valley · 3 studies
- UC Irvine Health/Chao Family Comprehensive Cancer Center · 3 studies
- UCI Health - Chao Family Comprehensive Cancer Center and Ambulatory Care · 3 studies
- University of California, Davis · 3 studies
- University of California, San Francisco · 3 studies
- City of Hope at Irvine Lennar · 2 studies
What taking part in a neoplasms 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.
Neoplasms trials in other states
Common questions
- Are there neoplasms clinical trials in California?
- Yes. We're currently tracking 249 recruiting neoplasms 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 neoplasms 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 neoplasms 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 neoplasms 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.