Clinical trials · California
Cancer clinical trials in California
We’re tracking 1,311 recruiting cancer studies with a site in California — including Early Phase 1, 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
- NCT06710067Recruiting
Urine chemicals for diagnosing disease
This study looks at chemicals in urine to help find new ways to diagnose diseases. You give one urine sample and answer a few questions—no treatment or long-term follow-up needed.
Encinitas, CaliforniaAges 18 years+ - NCT06731894RecruitingPhase 2
Cannabis for nerve pain after chemotherapy in breast and colon cancer survivors
This trial tests whether a cannabis-based product can reduce nerve damage (neuropathy) caused by chemotherapy in people who have finished treatment for breast or colon cancer. It focuses on survivors who still have pain, numbness, or tingling in their hands or feet.
Irvine, CaliforniaAges 18 years+ - NCT06774131RecruitingPhase 3
Study of UGN-104 for low-grade upper tract urothelial cancer
This trial tests a new treatment called UGN-104 for people with low-grade upper tract urothelial cancer (a type of cancer in the tube that carries urine from the kidney to the bladder). The treatment is given directly into the kidney area to kill cancer cells without surgery.
Orange, CaliforniaAges 18 years+ - NCT06780670RecruitingPhase 2/Phase 3
Comparing a new drug to standard care for prostate cancer
This trial tests a new study drug (AAA817) against the usual treatments for men with a certain type of advanced prostate cancer that has spread and is no longer responding to a targeted radiation therapy (177Lu-PSMA). The goal is to see if the new drug can help control the disease longer.
Santa Monica, CaliforniaAges 18–100 - NCT06788912RecruitingPhase 2
Study of pembrolizumab plus other drugs before lung cancer surgery
This trial is testing a new combination of drugs (including pembrolizumab) as a treatment before surgery for people with a certain type of lung cancer. The goal is to see if it helps shrink the tumor and improve outcomes.
Santa Barbara, CaliforniaAges 18 years+ - NCT06788938RecruitingPhase 2
Tarlatamab for advanced DLL3-positive tumors
This trial tests a drug called tarlatamab for people with advanced cancers that have a specific protein called DLL3. It aims to see if this treatment can help when other treatments have stopped working.
San Francisco, CaliforniaAges 18 years+ - NCT06794645RecruitingPhase 2
Pembrolizumab and Pemetrexed for Growing Chordoma
This trial tests two drugs—pembrolizumab (Keytruda) and pemetrexed—for people with chordoma that has continued to grow. The goal is to see if the combination can slow or stop the tumor. You'll need to be in fairly good health and able to take other medicines (folic acid and vitamin B12) to protect your body from side effects.
Santa Monica, 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+ - NCT06810778RecruitingPhase 1/Phase 2
Duvelisib plus venetoclax for relapsed PTCL
This study tests two oral drugs—duvelisib and venetoclax—to see if together they can help people with a type of lymphoma called peripheral T-cell lymphoma (PTCL) that has not responded to at least two prior treatments.
Los Angeles, 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+ - NCT06833073RecruitingPhase 2
Study of an mRNA vaccine and BCG for bladder cancer
This trial tests an experimental mRNA vaccine (V940) combined with BCG therapy for people with high-risk non-muscle invasive bladder cancer that hasn't spread. It aims to see if the vaccine can help the immune system better fight the cancer.
Bakersfield, CaliforniaAges 18 years+ - NCT06850623RecruitingPhase 2
Sound wave therapy plus chemo for advanced pancreatic cancer
This trial tests a new treatment that uses sound waves to help chemotherapy reach pancreatic tumors more effectively. It is for people with locally advanced pancreatic cancer that cannot be removed with surgery.
Stanford, CaliforniaAges 18 years+ - NCT06877884Recruiting
Cancer care data collection registry
This trial gathers information from your routine cancer care to help researchers learn more about real-world treatments and outcomes. No extra tests or procedures are required.
Monterey, CaliforniaAges 18–120 - NCT06907446Recruiting
New SUREcore needle vs standard care for prostate biopsy
This trial compares a new biopsy needle called SUREcore to the standard needle used during prostate biopsies. It aims to see if the SUREcore needle works better or causes less discomfort.
Sacramento, CaliforniaAges 18 years+ - NCT06908928RecruitingPhase 1
Study of Bulumtatug Fuvedotin for advanced triple-negative breast cancer
This study tests a new drug called bulumtatug fuvedotin for people with triple-negative breast cancer that has spread or come back. It's for those who have already tried certain other treatments, including a taxane and a specific type of antibody-drug conjugate.
La Jolla, CaliforniaAges 18 years+ - NCT06934889RecruitingPhase 1
Study of ABBV-637 or ABBV-155 with ERAS-801 for recurrent glioblastoma
This trial tests two new drugs (ABBV-637 or ABBV-155) combined with ERAS-801 for people with recurrent glioblastoma (a type of brain cancer). It may help if your tumor has a specific genetic change (EGFR amplification) and you are having surgery to remove part of the tumor.
Los Angeles, CaliforniaAges 18 years+ - NCT06959641RecruitingPhase 2
XL092 for advanced thyroid cancer that no longer responds to radioactive iodine
This trial is testing a new oral medication, XL092, for people with advanced thyroid cancer that has stopped responding to radioactive iodine therapy. The goal is to see if XL092 can slow or stop the cancer from growing.
Torrance, CaliforniaAges 18 years+ - NCT06992427RecruitingPhase 3
Gabapentin to prevent opioid use for mouth pain during cancer treatment
This trial tests if taking gabapentin during chemoradiation for head and neck cancer can reduce the need for strong painkillers like opioids. It may help manage mouth pain caused by treatment.
Dublin, CaliforniaAges 18 years+ - NCT06993844RecruitingPhase 1/Phase 2
Study of ETX-636 for advanced solid tumors with PIK3CA mutation
This trial tests an experimental drug called ETX-636 in people whose cancer has a specific gene change (PIK3CA mutation) and has not responded to at least one prior treatment. The goal is to see if the drug can shrink tumors or stop them from growing.
San Francisco, CaliforniaAges 18 years+ - NCT07002034RecruitingPhase 2
RE104 for adjustment disorder related to cancer or other serious illnesses
This trial is testing a new medication (RE104) for people who have adjustment disorder with depressed mood or anxiety because of a serious medical condition like cancer, ALS, MS, Parkinson's, or lung fibrosis. It's a study to see if the drug is safe and reduces symptoms.
San Diego, CaliforniaAges 18–80 - NCT07020806RecruitingPhase 1
New imaging test for invasive lobular breast cancer that has spread
This trial tests a new imaging agent, [68Ga]Ga DOTA-5G, to see if it can better detect invasive lobular breast cancer that has spread to other parts of the body. It involves a PET/CT scan and may help doctors understand the extent of your cancer.
Sacramento, CaliforniaAges 18–89 - NCT07022470RecruitingPhase 2
Comparing 3 vs. 4 brachytherapy sessions for cervical cancer
This trial compares two different schedules of brachytherapy (a type of internal radiation) for cervical cancer. It aims to see if a shorter course of 3 treatments works just as well as the standard 4 treatments, which could mean fewer visits and less discomfort.
Palo Alto, CaliforniaAges 18 years+ - NCT07033689RecruitingEarly Phase 1
Testing Suizenji for newly diagnosed pancreatic cancer
This trial tests a new ultrasound treatment called Suizenji for people with pancreatic cancer that cannot be removed by surgery. The goal is to see if it can safely target the tumor.
San Francisco, CaliforniaAges 18 years+ - NCT07035418Recruiting
Young adults' role in cancer care decisions
This study looks at how much young people with cancer (ages 15–29) want to be involved in making decisions about their care. It's for those currently on treatment, at end of life, or who finished treatment up to a year ago.
Palo Alto, CaliforniaAges 15–29
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 Comprehensive Cancer Center · 4 studies
- Stanford University · 4 studies
- University of California, Los Angeles (UCLA) · 3 studies
- Michael G Oefelein Clinical Trials · 2 studies
- University of California, San Francisco · 2 studies
- USC / Norris Comprehensive Cancer Center · 2 studies
- AIS Cancer Center at San Joaquin Community Hospital
- Bass Medical Group
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 1,311 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.