Clinical trials · California
Colorectal cancer clinical trials in California
We’re tracking 150 recruiting colorectal 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
- 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+ - NCT05176483RecruitingPhase 1
New drug combinations for advanced solid tumors
This trial tests a new drug called zanzalintinib, which may slow or shrink various types of advanced cancer. It is given together with other cancer treatments, and the study is looking at many different cancers including kidney, prostate, bladder, lung, liver, and more.
Palo Alto, CaliforniaAges 18 years+ - NCT06789172RecruitingPhase 1
New drug OKN4395 with or without pembrolizumab for solid tumors
This trial tests a new oral drug called OKN4395, which targets a COX2-related immune pathway, alone or with the immunotherapy pembrolizumab, in people with advanced solid tumors. It may be an option if you have certain types of cancer that have stopped responding to other treatments.
Santa Monica, CaliforniaAges 18 years+ - NCT05482893RecruitingPhase 1/Phase 2
Study of spevatamig for advanced gastrointestinal cancers
This trial tests a new drug called spevatamig (PT886) alone or with other treatments for advanced stomach, gastric, pancreatic, bile duct, or colorectal cancers. The goal is to see if it helps slow or stop cancer growth.
Duarte, CaliforniaAges 18 years+ - NCT06128551RecruitingPhase 1/Phase 2
Testing two targeted drugs for KRAS G12C advanced cancer
This study tests two oral medicines (elironrasib and daraxonrasib) given alone or together to see if they can shrink tumors or slow down cancer growth in people with advanced solid tumors that have a KRAS G12C mutation. It is for people who have already tried other treatments.
Orange, CaliforniaAges 18 years+ - NCT06040541RecruitingPhase 1
Study of RMC-9805 for KRAS G12D solid tumors
This trial tests an experimental pill (RMC-9805) for people with solid tumors that have a specific KRAS G12D mutation. It's for those who have already tried other treatments and need new options.
Sacramento, CaliforniaAges 18 years+ - NCT05379985RecruitingPhase 1/Phase 2
Test drug RMC-6236 for certain RAS mutations in advanced cancers
This trial tests whether RMC-6236 can treat advanced solid tumors that have specific RAS-related gene changes (especially certain KRAS G12 mutations). You may be able to join if your tumor’s DNA test shows the right mutation and your overall health is good enough for study visits.
Orange, CaliforniaAges 18 years+ - NCT07397338RecruitingPhase 1/Phase 2
RAS inhibitors with ivonescimab for solid tumors
This trial tests new drugs called RAS(ON) inhibitors combined with ivonescimab for people with solid tumors that have a RAS mutation. It aims to see if this combination can shrink tumors or slow their growth.
Los Angeles, CaliforniaAges 18 years+ - NCT06528990RecruitingPhase 2
Telehealth help for ostomy self-care
This study tests a telehealth program to help you manage your ostomy after surgery. If you have bladder or colorectal cancer and are getting an ostomy, you and a caregiver can learn skills to handle your new stoma from home using video calls.
Duarte, CaliforniaAges 18 years+ - NCT04701476RecruitingPhase 2
Pembrolizumab for advanced colorectal or lung cancer
This study tests pembrolizumab (an immune system medicine) with another treatment (TATE) in people with advanced colorectal or lung cancer that is not driven by certain gene changes. It may help shrink tumors after standard chemotherapy has stopped working.
Orange, CaliforniaAges 18 years+ - NCT07262619RecruitingPhase 1/Phase 2
Study of EIK1005 for advanced solid tumors
This study tests an experimental drug called EIK1005, either alone or combined with another drug (pembrolizumab), for people with advanced solid tumors, especially those with MSI-H or dMMR cancers (tumors that have trouble repairing their DNA). The goal is to see if it can shrink tumors or slow cancer growth.
Los Angeles, 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+ - NCT04981119Recruiting
Test apheresis for CAR T manufacturing in HLA-A2 solid tumors
This trial studies how a process called apheresis is used to make CAR T cells for people with certain solid tumors. It is designed for tumors that have lost a specific immune marker (HLA-A*02), which may affect how well CAR T therapies work.
Santa Monica, CaliforniaAges 18 years+ - NCT07595874RecruitingPhase 2
New Immunotherapy Drugs Before Surgery for Advanced Colorectal Cancer
This trial tests two immunotherapy drugs (botensilimab and balstilimab) given before surgery to treat advanced colorectal cancer that can be removed. The goal is to help the immune system fight cancer cells and improve outcomes after surgery.
Corona, CaliforniaAges 18 years+ - NCT07094204RecruitingPhase 1
Study of ASP5834 for advanced solid tumors with KRAS changes
This study tests a new drug (ASP5834) for people with advanced solid tumors that have changes in the KRAS gene. The study looks for a safe and effective dose, and may help you if your standard treatments have stopped working.
Santa Monica, CaliforniaAges 18 years+ - NCT04510129Recruiting
Cancer biospecimen collection study for immunotherapy patients
This study collects samples (like tissue biopsies and imaging information) from people with certain cancers who are starting anti–PD-1/PD-L1 immunotherapy. It helps researchers gather material to study how these treatments work.
San Francisco, 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+ - NCT06218914RecruitingPhase 1
Study of a new treatment for KRAS G12D cancers
This trial tests a new type of cell therapy (called TCR-T) that targets a specific genetic change (KRAS G12D) in advanced solid tumors that have stopped responding to standard treatments. It may be an option if your cancer has this mutation and you have a specific tissue type (HLA).
Newport Beach, CaliforniaAges 18 years+ - NCT07020117RecruitingPhase 1
Study of AKY-1189 for advanced solid tumors
This trial tests a new radioactive drug, AKY-1189, for people with solid tumors that have spread or cannot be removed. It may help if other treatments have stopped working.
Irvine, CaliforniaAges 18 years+ - NCT06444815RecruitingPhase 1
Study of VET3-TGI for advanced solid tumors
This trial tests an experimental treatment called VET3-TGI, which is injected directly into tumors. It is for people with advanced solid tumors who have already tried other treatments and are looking for new options.
Orange, CaliforniaAges 18 years+ - NCT07535112RecruitingPhase 1
Study of a new drug for advanced colorectal cancer with KRAS G12D mutation
This trial tests an experimental drug (BAY 3771249) for people with advanced or metastatic colorectal cancer that has a specific genetic change called KRAS G12D. The goal is to see if the drug is safe and if it can help shrink tumors.
Duarte, CaliforniaAges 18 years+ - NCT06445062RecruitingPhase 1/Phase 2
RAS-targeting drugs for gastrointestinal cancers
This trial tests new drugs that target a specific genetic change (RAS) in gastrointestinal cancers like pancreatic and colorectal cancer. The goal is to see if these drugs can shrink or slow down the cancer.
Los Angeles, CaliforniaAges 18 years+ - NCT05410977Recruiting
Testing blood and stool for colon cancer in Lynch syndrome
This study collects blood and stool samples to see how well they can detect colorectal cancer or advanced growths in people with Lynch syndrome (an inherited colon cancer risk) or suspected Lynch syndrome. It may help find cancer or precancer earlier, which can improve next-step decisions.
San Francisco, CaliforniaAges 18 years+ - NCT06324357RecruitingPhase 1/Phase 2
Zongertinib for HER2-positive cancers that have spread
This trial tests a new pill called zongertinib, alone or with other drugs, for people with HER2-positive cancers (like breast, stomach, or colorectal cancer) that have spread and are no longer responding to standard treatments. The goal is to find the best dose and see if it can help shrink tumors or slow the disease.
Cerritos, CaliforniaAges 18 years+
Colorectal cancer trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting colorectal cancer studies listed above.
- City of Hope · 7 studies
- USC Norris Comprehensive Cancer Center · 5 studies
- University of California, Los Angeles · 3 studies
- Hoag Memorial Hospital Presbyterian · 2 studies
- UC San Diego Moores Cancer Center · 2 studies
- University of California, Davis Comprehensive Cancer Center · 2 studies
- University of California, Irvine · 2 studies
- California Research Institute (CRI)
What taking part in a colorectal 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.
Colorectal cancer trials in other states
Common questions
- Are there colorectal cancer clinical trials in California?
- Yes. We're currently tracking 150 recruiting colorectal 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 colorectal 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 colorectal 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 colorectal 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.