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, Phase 3 and Phase 4 studies, each written for real people, not researchers.
Recruiting studies in California
- NCT06270043Recruiting
Focal therapy study for early-stage prostate cancer
This study is tracking men who choose focal therapy (a targeted treatment) for their localized prostate cancer. It aims to learn how well this treatment works and how it affects quality of life.
La Jolla, CaliforniaAges 18 years+ - NCT06225804RecruitingPhase 1
Study of ABSK112 for advanced non-small cell lung cancer
This trial tests a new drug called ABSK112 for people with advanced non-small cell lung cancer, especially those whose cancer has a specific change in the EGFR gene (exon 20 insertion). The main goals are to see if it's safe and how the body handles it.
Beverly Hills, CaliforniaAges 18 years+ - NCT05797831RecruitingPhase 2/Phase 3
Maintenance treatment for TP53-wildtype endometrial cancer
This trial tests navtemadlin as a maintenance (ongoing) treatment to help prevent endometrial cancer from coming back after chemotherapy works. It is mainly for people whose cancer has certain genetic features (TP53 “wildtype”) and who had a strong response to first-line taxane–platinum chemo.
Vallejo, CaliforniaAges 18 years+ - NCT07775287RecruitingPhase 3
Petosemtamab plus chemotherapy for advanced colorectal cancer
This study tests a new drug called petosemtamab combined with chemotherapy for people with advanced colorectal cancer that has not responded to one prior treatment. The trial aims to see if adding petosemtamab helps the cancer shrink or grow more slowly compared to adding a standard targeted therapy like cetuximab or bevacizumab.
Los Angeles, CaliforniaAges 18 years+ - NCT06577883Recruiting
New chest X-ray technique for lung cancer screening
This trial tests a new type of chest X-ray called tomosynthesis to improve lung cancer screening. It looks at people who are getting screened for lung cancer, have a suspicious spot on their lung, or have just been diagnosed—as long as they haven't been treated for lung cancer before.
San Diego, CaliforniaAges 30–85 - NCT07725796RecruitingPhase 1
Study of UGN-501 for recurrent bladder cancer
This study tests an experimental medicine called UGN-501 given directly into the bladder. It is for people whose bladder cancer has come back despite previous treatments, such as BCG therapy. The goal is to find the best dose and see how safe and effective it is.
Bakersfield, CaliforniaAges 18 years+ - NCT07702032RecruitingPhase 3
Study of petosemtamab plus chemo for left-sided colorectal cancer
This trial tests a new drug (petosemtamab) plus standard chemo to see if it works better than the current standard (cetuximab plus chemo) for people with advanced left-sided colorectal cancer that has not been treated yet. It is for patients whose cancer cells have no RAS or BRAF mutations.
Los Angeles, CaliforniaAges 18 years+ - NCT07701941RecruitingPhase 1/Phase 2
Combination treatment for advanced breast cancer
This trial tests two targeted drugs together for people with advanced breast cancer that is hormone receptor positive and has low levels of a protein called HER2. The goal is to see if this combination helps shrink tumors or slow the cancer's growth.
Los Angeles, CaliforniaAges 18 years+ - NCT07690306Enrolling by invitation
AI study to improve prostate cancer diagnosis with MRI and PSMA PET scans
This study is testing whether artificial intelligence can better predict prostate cancer by combining two types of scans (MRI and PSMA PET) along with your medical history, PSA, and biopsy results. If you have already had these scans and a biopsy, your information may help researchers develop a more accurate, non-invasive diagnostic tool.
Los Angeles, CaliforniaAges 18 years+ - NCT07680790RecruitingPhase 3
New drug combination for advanced egfr lung cancer
This study tests a new drug (izalontamab brengitecan) combined with a standard targeted therapy (osimertinib) compared to standard treatments alone for advanced EGFR-mutant non-small cell lung cancer. It aims to see if the combination works better.
Beverly Hills, CaliforniaAges 18 years+ - NCT07680439RecruitingPhase 2
CAR T cell therapy study for children with DIPG brain tumor
This trial tests a new CAR T cell therapy (BCB-276) for children and young adults with a type of brain tumor called DIPG. The therapy uses your own immune cells that are specially trained to attack the cancer.
Los Angeles, CaliforniaAges 1–26 - NCT07664579Recruiting
Couples coping together against cancer support program
This trial tests a supportive care program for couples facing cancer. It helps you and your partner work together to manage the challenges of a cancer diagnosis.
Duarte, CaliforniaAges 18 years+ - NCT06579417Recruiting
Testing a faster MRI for prostate cancer detection
This trial is testing a new, faster type of MRI scan (called biparametric MRI) to see if it can detect prostate cancer as well as the standard scan. It may help you avoid a longer scan and possibly reduce the need for contrast dye.
San Diego, CaliforniaAges 18 years+ - NCT06190886RecruitingPhase 1
First-in-human study of PTX-912 for advanced solid tumors
This trial tests a new drug called PTX-912 for people with advanced or metastatic solid tumors that have not responded to standard treatments. It is a first-in-human study, meaning this is the first time PTX-912 is being given to people, to see how safe it is and how well it works.
Duarte, CaliforniaAges 18 years+ - NCT07647328RecruitingPhase 3
Camizestrant and ribociclib for advanced hormone-receptor-positive breast cancer
This trial tests a combination of two drugs (camizestrant and ribociclib) for advanced breast cancer that is hormone-receptor-positive and HER2-negative. The study aims to see if this combination helps patients whose cancer cannot be surgically removed or treated with radiation alone.
Palo Alto, CaliforniaAges 18–130 - NCT07629206Recruiting
Freezing therapy for small, early-stage breast cancer
This study tests whether freezing a small breast tumor (cryoablation) is a safe and effective treatment option for older adults with early-stage, hormone-receptor-positive breast cancer. Instead of surgery, the goal is to destroy the tumor by freezing it in place.
Glendale, CaliforniaAges 70 years+ - NCT07619599RecruitingPhase 1
PET Scan to Track Lung Cancer Treatment Response
This study uses a special PET imaging scan to help doctors see how well pembrolizumab (an immunotherapy drug) is working against advanced non-small cell lung cancer. You'll receive the scan along with your regular pembrolizumab treatment and possible radiation therapy to help measure treatment response.
Duarte, CaliforniaAges 18 years+ - NCT06706921RecruitingPhase 4
Predicting treatment success with PET scans in prostate cancer
This study looks at whether a special PET scan can help predict how well a targeted radiation therapy (LuPSMA) works in men with advanced prostate cancer that has spread. You would get several PET scans before and after treatment to see if the scan results can forecast your outcome.
Los Angeles, CaliforniaAges 18 years+ - NCT07611110RecruitingPhase 3
AZD2265 vs standard care for advanced prostate cancer
This trial tests a new cancer-fighting drug called AZD2265 against standard treatment for men with advanced prostate cancer that has spread and stopped responding to hormone therapy. You may qualify if your cancer previously responded to PSMA-targeted radiation treatments but is now growing again.
Irvine, CaliforniaAges 18 years+ - NCT07605546Recruiting
Radiation Therapy for Cancer Pain Relief
This trial tests whether a focused radiation treatment called SRS (stereotactic radiosurgery) can help relieve severe cancer pain that hasn't improved with strong pain medications. You would receive a one-time radiation procedure aimed at pain-causing areas in your brain.
Los Angeles, CaliforniaAges 18 years+ - NCT07594106RecruitingPhase 1/Phase 2
New immunotherapy for advanced prostate or kidney cancer
This trial tests new experimental drugs (REGN15505 and REGN4336) designed to target and attack cancer cells in advanced prostate cancer or kidney cancer. These drugs work by boosting your immune system to recognize and destroy cancer, and may be combined with other approved immunotherapy drugs.
Duarte, CaliforniaAges 18 years+ - NCT07587229Recruiting
Predicting chemotherapy response in gastric cancer
This research study analyzes tumor tissue samples to understand why some patients respond better to chemotherapy after gastric cancer surgery. By studying how genes are processed in cancer cells, researchers hope to predict which patients will benefit most from treatment.
Duarte, CaliforniaAges 18 years+ - NCT07587268Recruiting
Understanding Your Appendiceal Cancer Through Genetic Testing
This research study uses genetic and molecular testing on archived tumor samples to better understand appendiceal cancer and predict how it may progress. The goal is to help doctors personalize treatment plans based on the specific characteristics of your cancer.
Durate, CaliforniaAges 18 years+ - NCT07569926RecruitingPhase 4
Fluciclovine PET scan for prostate cancer recurrence detection
This study tests whether a newer type of imaging scan (called fluciclovine PET) can find where prostate cancer has come back when an earlier scan (PSMA PET) didn't show clear results. The goal is to help doctors better plan treatment for men whose cancer has returned after surgery or radiation.
San Diego, 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 · 5 studies
- Research Site · 2 studies
- University of California San Diego · 2 studies
- Valkyrie Clinical Trials - Los Angeles · 2 studies
- Cedars-Sinai Medical Center
- Children's Hospital Los Angeles
- City of Hope Medical Center
- David Geffen School of Medicine University of California, Los Angeles(UCLA)
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.