Clinical trials · California
Thyroid Cancer clinical trials in California
We’re tracking 17 recruiting thyroid 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
- NCT07124000Recruiting
T-DXd for advanced HER2-positive solid tumors
This trial is for people with advanced HER2-positive solid tumors (cancers that cannot be removed by surgery or have spread). It tests the drug T-DXd (also called Enhertu) when your doctor has already decided it's the right treatment for you and you have no other good options.
San Diego, CaliforniaAges 18–130 - NCT06961084RecruitingPhase 2
I-124 PET/CT scan for diagnosing thyroid cancer
This trial tests whether a new type of scan (I-124 PET/CT) can better detect thyroid cancer compared to standard scans. It may help doctors decide on the best treatment, such as radiation therapy or surgery.
San Francisco, CaliforniaAges 13 years+ - NCT06458036RecruitingPhase 2
Selpercatinib before radioactive iodine for RET-positive thyroid cancer
This study tests whether a targeted drug called selpercatinib, taken before radioactive iodine therapy, can help treat thyroid cancer in children and young adults who have a specific genetic change (RET fusion or mutation). The drug may make the cancer more sensitive to the radioactive iodine treatment that follows.
San Francisco, CaliforniaAges 2–25 - NCT05024929Recruiting
Test targeted drugs to help radioactive iodine reach thyroid cancer
This study looks at whether certain cancer “targeted therapy” medicines can make radioactive iodine (RAI) therapy work better for thyroid cancer that has spread to the lungs. It also involves taking special whole-body scans to measure how much radioactive iodine gets taken up by the cancer.
San Francisco, CaliforniaAges birth+ - NCT05783323RecruitingPhase 2
Larotrectinib plus radiation for thyroid cancer with NTRK fusion
This Phase 2 trial tests larotrectinib (a targeted medicine) to help radioactive iodine (RAI) work better in people with differentiated thyroid cancer that has an NTRK gene fusion. It may improve how much thyroid cancer the RAI can reach and shrink.
San Francisco, CaliforniaAges 2–99 - NCT04742608Recruiting
Liquid blood tests to diagnose thyroid nodules or cancer
This study tests whether a blood “liquid biopsy” can help diagnose thyroid cancer or hard-to-tell thyroid nodules without needing extra procedures. It may help confirm what’s going on before or around planned thyroid surgery.
Los Angeles, CaliforniaAges 18 years+ - NCT06583395Enrolling by invitation
Meditation retreat study with fitness tracker
This trial studies people attending a 7-day meditation retreat to see how meditation affects well-being. You will wear a fitness tracker and answer surveys.
Palm Desert, CaliforniaAges 21 years+ - NCT05786924RecruitingPhase 1/Phase 2
Targeted cancer drug study for RAS/RAF mutation-positive tumors
This Phase 1/2 study tests S241656 (a targeted cancer medicine) in people whose cancers have certain “RAS/RAF” gene changes. It may help shrink tumors or control cancer growth, and also finds the safest dose and best way to use the drug.
Los Angeles, CaliforniaAges 18 years+ - NCT05366881Recruiting
Blood test study to spot early cancer signal and cancer leftovers
This observational study checks whether a blood test (a “cfDNA” test) can detect early signs of cancer or small amounts of cancer left after treatment. It may help doctors use a simple blood sample to improve cancer detection and follow-up.
Duarte, CaliforniaAges 40 years+ - NCT07406087Recruiting
Navigation support for young adults after cancer
This study tests a navigation program to help cancer survivors ages 21-45 get the follow-up care they need. It may be a good fit if you were diagnosed with certain cancers as a teen or young adult.
Pasadena, CaliforniaAges 21–45 - NCT03175224RecruitingPhase 2
Test drug APL-101 for lung or other tumors with MET changes
This Phase 2 study tests APL-101 to shrink advanced cancers that have certain MET-related changes, including specific MET mutations, MET gene amplification, or MET fusions. It may help people whose tumors have run out of standard treatment options.
Los Angeles, CaliforniaAges 18 years+ - NCT06475989RecruitingPhase 3
Targeted therapy vs. chemotherapy for thyroid cancer
This trial compares a targeted therapy pill combination (dabrafenib and trametinib) with cabozantinib or chemotherapy for people with a specific type of advanced thyroid cancer (differentiated thyroid cancer) that has a BRAF V600E mutation. It aims to find which treatment works better after previous treatments have stopped working.
Napa, CaliforniaAges 18 years+ - NCT04119024RecruitingPhase 1
Gene-edited immune cells for advanced melanoma or solid tumors
This Phase 1 study tests a gene-modified immune cell treatment for advanced cancers that don’t have standard curative options. It may help by attacking cancer cells that show a specific marker called IL13Rα2 after patients receive “conditioning” chemotherapy to prepare the immune system.
Stanford, CaliforniaAges 18–75 - 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+ - NCT04216732Recruiting
Study of medullary thyroid cancer progression in a registry
This study follows people with medullary thyroid cancer to better understand how the disease changes over time, including in advanced stages. You may help improve future treatment planning and care for people with medullary thyroid cancer.
San Francisco, CaliforniaAges 18 years+ - NCT03676647Recruiting
Test DNA methylation from thyroid FNA samples to diagnose cancer
This study looks at a molecular test (DNA methylation pattern) using samples taken during fine-needle aspiration (FNA) of thyroid nodules. It aims to help identify which thyroid nodules that looked “unclear” after the first test may be cancer.
Duarte, CaliforniaAges 19 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
Thyroid Cancer trials by city in California
Where these studies are running in California
Institutions with a site for the recruiting thyroid cancer studies listed above.
- University of California, San Francisco · 5 studies
- City of Hope · 3 studies
- Providence Medical Foundation - Santa Rosa · 2 studies
- Providence Queen of the Valley Medical Center · 2 studies
- Providence Saint Joseph Medical Center/Disney Family Cancer Center · 2 studies
- Providence Santa Rosa Memorial Hospital · 2 studies
- UCLA Jonsson Comprehensive Cancer Center · 2 studies
- AIS Cancer Center at San Joaquin Community Hospital
What taking part in a thyroid 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.
Thyroid Cancer trials in other states
Common questions
- Are there thyroid cancer clinical trials in California?
- Yes. We're currently tracking 17 recruiting thyroid 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 thyroid 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 thyroid 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 thyroid 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.