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
- NCT06910761RecruitingPhase 2
Radiation for cancer spread to brain lining
This trial tests whether a precise type of radiation to the brain and spine (craniospinal irradiation) can help control cancer that has spread to the lining of the brain and spinal cord (leptomeningeal disease) in people with breast cancer or non-small cell lung cancer. The goal is to improve symptoms and slow disease progression.
Duarte, CaliforniaAges 18 years+ - NCT06885034RecruitingPhase 1/Phase 2
Testing a New Drug for Advanced Colon, Rectal, or Pancreatic Cancer
This study tests an experimental drug, alone or combined with other treatments, for advanced colon, rectal, or pancreatic cancer that hasn't responded to standard options or cannot be removed by surgery. The goal is to see if it is safe and if it helps shrink or slow the cancer.
Los Angeles, CaliforniaAges 18 years+ - NCT06884618RecruitingPhase 1
Study of a new drug for advanced solid tumors with RAS mutations
This trial is testing an experimental drug for people whose cancer has spread and has a specific gene change called RAS. The study aims to see if the drug is safe and helps shrink tumors.
Duarte, CaliforniaAges 18 years+ - NCT06859424RecruitingPhase 2
Testing a new GVHD prevention method after donor stem cell transplant
This trial tests a new way to prevent graft-versus-host disease (a common side effect of stem cell transplant) using a drug called cyclophosphamide after transplant. It is for adults with certain blood cancers who need a transplant from a partially matched unrelated donor.
Palo Alto, CaliforniaAges 18–66 - NCT06841354RecruitingPhase 3
Sac-TMT alone or with pembrolizumab for advanced triple-negative breast cancer
This trial tests a new drug, Sac-TMT, given alone or with an immunotherapy drug (pembrolizumab) for people with advanced triple-negative breast cancer who have not yet received any treatment for advanced disease. The goal is to see if this combination can shrink tumors or slow the cancer's growth.
Duarte, CaliforniaAges 18 years+ - NCT06817889RecruitingPhase 2
Remdesivir for RSV in people with weak immune systems
This trial tests if remdesivir can safely treat RSV (a respiratory virus) in people with weakened immune systems, such as those who have had a stem cell or bone marrow transplant, CAR T-cell therapy, or are being treated for blood cancer. If you have a confirmed RSV infection in your nose or throat and are at moderate or high risk for complications, you may be able to join.
Duarte, CaliforniaAges 18 years+ - NCT06807437RecruitingPhase 3
Testing lanreotide before pancreas surgery to prevent leaks
This trial tests if a medicine called lanreotide, given before surgery, can prevent a common complication (pancreatic leak) after removing part of the pancreas. It is for people with pancreatic cancer or a growth that could become cancer who are scheduled for a specific type of pancreas surgery.
San Diego, CaliforniaAges 18 years+ - NCT06815003RecruitingPhase 2
Preventing Graft-Versus-Host Disease After Stem Cell Transplant
This trial tests a combination of three drugs (vedolizumab, cyclophosphamide, and tacrolimus) to prevent graft-versus-host disease, a common complication after a donor stem cell transplant. It is for people with certain blood cancers who are getting a reduced-intensity transplant.
Duarte, CaliforniaAges 18–80 - NCT06797635RecruitingPhase 2
Study of Patritumab Deruxtecan and Pembrolizumab for High-Risk Early Breast Cancer
This trial tests a combination of targeted therapies (patritumab deruxtecan plus pembrolizumab) along with other anticancer drugs for people with a high-risk type of early-stage breast cancer that is either triple-negative or has very low hormone receptors and is HER2-negative. The goal is to see if this approach can help prevent the cancer from coming back.
Santa Monica, CaliforniaAges 18 years+ - NCT06780176Recruiting
Breast cancer risk study for people in Florida
This study looks at breast cancer risk factors and outcomes by inviting people who are getting breast biopsies or are new breast patients at certain Florida hospitals to complete a survey. It aims to better understand what affects breast cancer risk and treatment results.
Los Angeles, CaliforniaAges 18 years+ - NCT05625529Recruiting
Study blood test to detect pancreatic cancer early
This trial studies how well a new blood-based test may help find pancreatic cancer earlier. You may join if you’re an adult who fits a specific risk group and can safely provide a blood sample.
San Diego, CaliforniaAges 18 years+ - NCT06750094RecruitingPhase 3
Study of amivantamab plus FOLFIRI in colorectal cancer
This trial tests adding amivantamab to standard FOLFIRI chemotherapy for people with certain types of colorectal cancer that have already been treated once. It aims to see if this combination works better than another common treatment (cetuximab or bevacizumab plus FOLFIRI).
Los Alamitos, CaliforniaAges 18 years+ - NCT06675136RecruitingPhase 1
Nab-paclitaxel PIPAC with paclitaxel and ramucirumab for stomach cancer spread to belly lining
This trial tests a new way to deliver chemotherapy directly into the belly for stomach cancer that has spread to the lining of the abdomen (peritoneal metastases). It also combines two standard chemotherapy drugs. The goal is to see if this approach can help people whose cancer progressed after first treatment.
Duarte, CaliforniaAges 18 years+ - NCT06662786RecruitingPhase 3
Amivantamab plus chemo vs. standard chemo for left-sided colorectal cancer
This trial compares a new combination (amivantamab plus chemotherapy) with the standard treatment (cetuximab plus chemotherapy) as the first therapy for people with left-sided colorectal cancer that has spread. The goal is to see which approach works better when the tumor has no mutations in the KRAS, NRAS, or BRAF genes.
Los Alamitos, CaliforniaAges 18 years+ - NCT06655246RecruitingPhase 1
Ziftomenib and imatinib for advanced GIST
This trial tests a new drug, ziftomenib, combined with imatinib for people with advanced or spreading gastrointestinal stromal tumors (GIST) that have a KIT mutation. It may help if your GIST has gotten worse while on imatinib.
Palo Alto, CaliforniaAges 18 years+ - NCT06651697RecruitingPhase 3
Full vs empty bladder for pelvic radiation
This trial is comparing two ways to prepare for pelvic radiation therapy: either with a full bladder or an empty bladder. The goal is to see which method works better for protecting healthy organs and reducing side effects.
San Diego, CaliforniaAges 18 years+ - NCT06603519Enrolling by invitation
Can a diet reduce inflammation after a colonoscopy?
This study tests whether a special diet can help reduce inflammation and improve gut health after a colonoscopy. It is for people who are getting a repeat colonoscopy because they've had polyps before.
San Diego, CaliforniaAges 18 years+ - NCT06587490RecruitingPhase 3
Radiation therapy for limited metastatic cancers
This trial tests whether adding focused, high-dose radiation (SABR) to standard drug therapy can better control cancer that has spread to a few spots in the body. It is for people starting or resuming cancer medicines for newly found or growing metastases.
La Jolla, CaliforniaAges 18 years+ - NCT06551142RecruitingPhase 1
Study of GSK5764227 for advanced solid tumors
This study tests a new drug called GSK5764227 for people with advanced solid tumors. It aims to see if the drug is safe and works against cancer that has stopped responding to other treatments.
Stanford, CaliforniaAges 18 years+ - NCT06518057RecruitingPhase 2
Sparing memory during brain radiation for leptomeningeal metastases
This trial tests a special type of radiation that avoids the memory center of the brain (the hippocampus) while treating cancer that has spread to the lining of the brain and spinal cord. It may help reduce side effects on thinking and memory for people with breast or lung cancer.
San Francisco, CaliforniaAges 18 years+ - NCT06500481RecruitingPhase 3
Proton vs standard radiation for cancer spread to brain/spine lining
This trial compares a newer type of radiation (proton therapy) to standard radiation for people whose breast or lung cancer has spread to the lining of the brain and spinal cord. It aims to see if proton therapy can better control the disease while causing fewer side effects.
San Diego, CaliforniaAges 18 years+ - NCT06486454Recruiting
Liver tumor treatment with sound waves
This trial tests a new device that uses sound waves to destroy liver tumors without cutting or needles. It may be an option if you have a liver tumor that can be partly or fully targeted by this technique.
Santa Monica, CaliforniaAges 22 years+ - NCT06469944RecruitingPhase 1/Phase 2
Study of drug combinations for stomach or esophagus cancer
This trial tests new combinations of drugs alongside standard chemotherapy for people with advanced stomach or esophagus cancer that has not been treated yet. It aims to see if these combinations can shrink tumors or slow down the cancer better than current options.
Los Angeles, CaliforniaAges 18 years+ - NCT06445972RecruitingPhase 1/Phase 2
Testing combination therapies for advanced stomach or esophageal cancer
This study tests new drug combinations for people with advanced stomach or esophageal cancer that worsened after first treatment. It aims to find better options for those whose tumors lack HER2.
Los Angeles, 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
- UC San Diego Moores Cancer Center · 4 studies
- University of California, Los Angeles · 3 studies
- USC Norris Comprehensive Cancer Center · 3 studies
- Cancer and Blood Specialty Clinic · 2 studies
- CBCC Global Research · 2 studies
- GSK Investigational Site · 2 studies
- Los Angeles Cancer Network · 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.