Clinical trials · California
Solid Tumor Cancer clinical trials in California
We’re tracking 313 recruiting solid tumor 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
- NCT02474160Recruiting
Banking cancer tissue and blood for future research
This study collects and stores leftover or newly taken samples of tissue and blood from people with cancer. The goal is to build a research library that can help investigators study cancer and develop better tests or treatments.
Duarte, CaliforniaAges 2 months+ - NCT02250352Recruiting
Biopsy study to collect breast tumor tissue samples
This study takes small tissue samples (core biopsies) from people with known or suspected breast cancer and stores them for research. It may help scientists better understand breast tumors, especially when the cancer has spread.
Los Angeles, CaliforniaAges 18 years+ - NCT05317858RecruitingPhase 3
Open the brain’s blood barrier to treat lung cancer brain spots
This trial tests whether using focused ultrasound to temporarily open the brain’s blood barrier—plus standard immune therapy—can better treat non-small cell lung cancer (NSCLC) that has spread to the brain. It aims to help medicines reach the brain tumor spots more effectively, while still using the usual lung cancer treatment.
Newport Beach, CaliforniaAges 18–100 - NCT06281678RecruitingPhase 2
Study of IBI363 for advanced solid tumors
This trial tests a new drug called IBI363 for people with advanced solid tumors. It aims to see if the drug is safe and effective. You may be able to join if you are generally well and have not had other cancer treatments recently.
San Francisco, CaliforniaAges 18 years+ - NCT07218913RecruitingPhase 1
Testing a drug to reduce ear damage from chemo in testicular cancer
This trial tests whether adding Pedmark (sodium thiosulfate) to cisplatin chemotherapy can protect hearing in men with stage II or III testicular germ cell tumors. It aims to reduce the risk of drug-related ear damage while still treating the cancer.
Duarte, CaliforniaAges 18 years+ - 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+ - NCT06513962RecruitingPhase 3
Triptorelin to protect ovaries in young women with cancer
This study tests whether a medicine called triptorelin can protect the ovaries in young women and teens receiving strong chemotherapy for cancer. If you are newly diagnosed with a cancer (other than breast cancer) and are about to get certain chemotherapy drugs, this trial may help preserve your fertility.
Duarte, CaliforniaAges Up to 39 years - NCT03866382RecruitingPhase 2
Immunotherapy plus a targeted drug for rare genitourinary tumors
This Phase 2 study tests whether nivolumab and ipilimumab (immunotherapy drugs) plus cabozantinib (a targeted anti-cancer drug) can shrink or control rare cancers of the urinary/reproductive system that have spread. It may help by boosting the immune system and blocking cancer growth signals at the same time.
Arroyo Grande, CaliforniaAges 18 years+ - NCT05006482RecruitingPhase 3
Geriatric education and care support for older cancer survivors
This study tests whether a structured health education and “older adult care” approach—done with your oncology team—can improve support for people after cancer. It includes older cancer survivors and a chosen caregiver, using in-person or video visits for follow-up.
Fremont, CaliforniaAges 18 years+ - 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.
Duarte, CaliforniaAges 18 years+ - NCT04329494RecruitingPhase 1
Study of targeted drug delivery into the abdomen using PIPAC
This Phase 1 trial tests PIPAC, a way to deliver anti-cancer medicine directly into the abdomen using a minimally invasive procedure. It is for people with peritoneal spread from certain cancers to see whether this approach is safe and potentially helpful.
Duarte, CaliforniaAges 18 years+ - NCT05691491RecruitingPhase 1/Phase 2
Temozolomide plus M1774 for advanced metastatic cancers
This Phase 1/2 trial tests a combination of temozolomide and M1774 to see how safe it is and whether it can help shrink advanced cancers that have spread. It focuses on certain tumor types and specific biomarker results, and it may be an option if standard treatments have been tried or aren’t possible.
Irvine, CaliforniaAges 18 years+ - NCT04165798Recruiting
Pembrolizumab with or without chemotherapy for stage IV lung cancer
This trial tests whether pembrolizumab alone, or pembrolizumab plus chemotherapy, can treat stage IV non-small cell lung cancer. It may help shrink tumors and improve outcomes by boosting the immune system, with or without added chemotherapy.
Duarte, CaliforniaAges 18 years+ - NCT06500455RecruitingPhase 3
Standard vs longer radiation for brain metastases
This trial compares the usual short course of radiation therapy (one session) to a longer course (up to 5 sessions) for people with cancer that has spread to the brain. The goal is to see if the longer course works better and causes fewer side effects.
Anaheim, CaliforniaAges 18 years+ - NCT05830058RecruitingPhase 2
PET-guided focused radiation for limited worsening lung, melanoma, kidney cancer
This Phase 2 study tests whether using a PET scan to guide focused radiation (SBRT) can control a small number of cancer spots that are starting to grow despite prior treatment. It may help patients avoid wider radiation by targeting only the limited progressing areas.
Duarte, CaliforniaAges 18 years+ - NCT07321106RecruitingPhase 1
CBI-1214 for advanced colorectal cancer
This trial tests a new drug called CBI-1214, which is designed to help your immune system attack cancer cells. It is for people with advanced colorectal cancer that has not responded to other treatments.
Duarte, CaliforniaAges 18 years+ - NCT04616560RecruitingPhase 1/Phase 2
New drug for recurrent Wilms tumor, osteosarcoma, and DSRCT
This trial tests a targeted drug called trastuzumab deruxtecan for children and young adults with certain cancers that have come back or not responded to treatment. It may help if your tumor has not responded to standard therapies.
Los Angeles, CaliforniaAges 12–39 - NCT06470282RecruitingPhase 1/Phase 2
Drug combo plus radiation for muscle-invasive bladder cancer
This trial tests a combination of two drugs (enfortumab vedotin and pembrolizumab) plus radiation therapy for people with bladder cancer that has grown into the muscle layer. The goal is to see if this treatment can kill the cancer while avoiding the need for bladder removal surgery.
San Francisco, CaliforniaAges 18 years+ - NCT06995898Recruiting
Blood test study for early cancer detection
This study is testing a new blood test that may help find cancer early. You will give blood samples over a year, and researchers will check them for signs of cancer.
Pleasanton, CaliforniaAges 45–75 - NCT05642611RecruitingPhase 3
Cooling and compression for nerve protection during chemotherapy
This study tests whether using cooling and/or compression on the arms or legs can prevent nerve damage that can happen from certain chemotherapy drugs. If you get eligible chemo soon, this may help lower the chance of painful numbness or tingling during treatment.
Martinez, CaliforniaAges 18 years+ - NCT03816345RecruitingPhase 1
Nivolumab for advanced cancer with autoimmune conditions
This Phase 1 study tests nivolumab, an immunotherapy “anti-cancer accelerator,” in people with advanced cancer who also have an autoimmune disorder. It aims to see if nivolumab can be given safely and whether it may help shrink or control cancer.
Palo Alto, CaliforniaAges 18 years+ - NCT04665739RecruitingPhase 2
Lutetium Lu-177 for lung carcinoid tumors with somatostatin receptors
This trial tests lutetium Lu 177 dotatate, a targeted radiation treatment, for advanced lung neuroendocrine (carcinoid) tumors that have a specific marker called somatostatin receptors. It may help shrink tumors by delivering radiation directly to cancer cells that “light up” on a special scan.
Beverly Hills, CaliforniaAges 18 years+ - NCT06890338RecruitingPhase 2
Carboplatin and mirvetuximab for advanced ovarian cancer
This trial tests a combination of chemotherapy (carboplatin) and a targeted drug (mirvetuximab soravtansine) given through a vein. It is for people with newly diagnosed advanced ovarian, fallopian tube, or primary peritoneal cancer that has a specific protein called folate receptor alpha (FRα) on at least 75% of tumor cells.
Los Angeles, CaliforniaAges 18 years+ - NCT05334069Recruiting
Blood test study for early cancer detection in patients
This study collects blood from people with cancer and people without cancer (or with possible cancer) to test whether new blood tests can detect cancer earlier. Your blood samples help researchers evaluate how well these tests work.
Arroyo Grande, CaliforniaAges 40–75
Solid Tumor Cancer trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting solid tumor cancer studies listed above.
- City of Hope Comprehensive Cancer Center · 10 studies
- University of California, San Francisco · 5 studies
- UC San Diego Moores Cancer Center · 4 studies
- USC / Norris Comprehensive Cancer Center · 4 studies
- Contra Costa Regional Medical Center · 3 studies
- PCR Oncology · 3 studies
- UC Irvine Health · 3 studies
- UC San Diego Medical Center · 3 studies
What taking part in a solid tumor 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.
Solid Tumor Cancer trials in other states
Common questions
- Are there solid tumor cancer clinical trials in California?
- Yes. We're currently tracking 313 recruiting solid tumor 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 solid tumor 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 solid tumor 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 solid tumor 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.