Clinical trials
High Risk clinical trials
Below are recruiting high risk clinical trials, each written for real people, not researchers. We’re tracking 933 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06631391RecruitingPhase 1
NK cell therapy for high-risk neuroblastoma in children
This trial tests a new natural killer (NK) cell therapy from donated umbilical cord blood for children with high-risk neuroblastoma that has come back or not responded to treatment. The goal is to see if this immune cell therapy is safe and can help fight the cancer.
Guangzhou, GuangdongAges 1 day–18 years - NCT06644937RecruitingPhase 2/Phase 3
TACE with Icaritin after surgery for high-risk liver cancer
This trial tests combining a targeted medicine (Icaritin) with a procedure that delivers chemotherapy directly to the liver (TACE) after surgery. It is for people with liver cancer who have a high chance of the cancer coming back, to see if this treatment helps prevent recurrence.
Guangzhou, GuangdongAges 18–75 - NCT06649552Recruiting
French validation of a psychosis risk questionnaire for teens
This study is testing a new French version of a questionnaire (SPI-CY) that helps doctors better understand early signs of psychosis in teenagers. If you are 12 to 17 and already being checked for these signs, you may be able to help improve the tool.
LilleAges 12–17 - NCT06651580Recruiting
Gene study for kids with pancreas problems
This study collects samples like blood or tissue from children with pancreatitis to look for gene changes that might raise their risk. It helps doctors learn more about why some children get pancreas inflammation.
Los Angeles, CaliforniaAges Up to 17 years - NCT06654713Recruiting
Closed-loop insulin system impact on pregnancy study
This study looks at how automated insulin delivery systems (closed-loop pumps) work during pregnancy for women with type 1 diabetes. It aims to understand how these systems can help manage blood sugar levels safely for both you and your baby.
San Francisco, CaliforniaAges 18 years+ - NCT06658782Recruiting
MRI vs ultrasound for liver cancer detection in high-risk people
This trial compares two types of scans to see which detects liver cancer better in people at high risk. You would receive either an MRI with contrast or an ultrasound every 6 months to monitor for liver cancer.
Oxford, OxonAges 18 years+ - NCT06660186Recruiting
Sternal plating for high-risk heart surgery patients
This study looks at whether using special metal plates to close the breastbone after heart surgery can help people at higher risk for slow healing. It may be an option if you have multiple risk factors like diabetes, heavy smoking related lung disease, or obesity.
Cleveland, OhioAges 18–89 - NCT06664021RecruitingPhase 2
Tislelizumab and S-1 for recurrent high-risk bile duct cancer
This trial tests a combination of two drugs (tislelizumab and S-1) for people whose bile duct cancer has come back after surgery and had high-risk features. The goal is to see if this treatment can help control the cancer.
Fuyang, AnhuiAges 18–75 - NCT06667700RecruitingPhase 3
A study of the antiviral molnupiravir for high-risk people with COVID-19
This study tests an antiviral pill called molnupiravir to see if it can prevent severe COVID-19 in people who are at high risk and cannot take Paxlovid. If you have mild to moderate COVID-19 symptoms and certain health risks, you may be able to join.
Cullman, AlabamaAges 18 years+ - NCT06672081Recruiting
Early catheter treatment for high-risk pulmonary embolism
This study tests whether using a catheter (a thin tube) to remove blood clots from the lungs early can help people with a severe, life-threatening pulmonary embolism. It is for patients who are in shock or have had a cardiac arrest due to a large clot.
Bad KrozingenAges 18 years+ - NCT06672302Recruiting
Blood test to find high breast cancer risk
This study uses a blood test to help identify women who are at high risk for breast cancer. It is for Korean women aged 40 or older who have a suspicious breast finding and need a biopsy.
SeoulAges 40 years+ - NCT06682728RecruitingPhase 2
Treating high-risk bladder cancer after surgery
This trial tests a combination of two drugs (sacituzumab govitecan and nivolumab) given after surgery to prevent the return of muscle-invasive bladder cancer. It is for patients whose cancer has a high chance of coming back despite surgery.
Orange, CaliforniaAges 18 years+ - NCT06686108RecruitingPhase 2
Medication combo to prevent lymphoma relapse after transplant
This trial tests a combination of two drugs (a demethylating agent and venetoclax) to help prevent high-risk T-cell lymphoma or leukemia from coming back after a stem cell transplant. It is for patients who have certain risk factors for relapse.
ShanghaiAges 14–55 - NCT06687772RecruitingPhase 2
Preventing brain relapse in high-risk lymphoma with stem cell transplant
This trial tests if high doses of chemotherapy (thiotepa and carmustine) followed by a stem cell transplant from your own cells can prevent lymphoma from coming back in the brain or spinal cord. It's for people with aggressive lymphoma that has a higher risk of spreading to the central nervous system.
St Louis, MissouriAges 18–75 - NCT06696794RecruitingPhase 3
Testing mitomycin before surgery for high-risk bladder cancer
This trial tests whether giving mitomycin directly into the bladder before surgery can help people with high-risk non-muscle-invasive bladder cancer. The goal is to see if this approach is safe and effective at preventing cancer from coming back.
Wuhan, HubeiAges 18–75 - NCT06700044Recruiting
Probiotics for high-risk pregnancy
This study tests whether taking a probiotic supplement during pregnancy can help prevent complications in women at risk for preeclampsia. You would take a daily probiotic or placebo pill from about 20 weeks until delivery.
LundAges 18 years+ - NCT06706596Recruiting
TB screening for high-risk groups in Barcelona
This trial offers free tuberculosis (TB) testing for people who are at high risk for the disease. It aims to find TB early so it can be treated quickly.
BadalonaAges Any age - NCT06306014RecruitingPhase 1/Phase 2
Study of a new therapy to prevent C. diff recurrence
This study tests a new live bacteria product (EXL01) given with vancomycin to prevent C. diff from coming back. It is for people who have already had C. diff two or more times and are at high risk of another infection.
AnnecyAges 18 years+ - NCT05941520RecruitingPhase 2
Acolbifene vs low-dose tamoxifen to prevent breast cancer
This Phase 2 trial compares acolbifene and low-dose tamoxifen to see which better lowers breast cancer risk in premenopausal women at high risk. You would be followed with health visits, blood tests, and a breast tissue sampling procedure.
Duarte, CaliforniaAges 35 years+ - NCT04297592Enrolling by invitationPhase 4
Antibiotics to prevent infection after hip or knee replacement
This trial studies whether giving antibiotics before and/or after surgery can lower the chance of a serious joint infection after elective hip or knee replacement. It’s aimed at people at higher risk for infection.
Iowa City, IowaAges 18–99 - NCT07346014Recruiting
Sleep therapy for college students at risk of suicide
This study tests if improving sleep can help college students who are already getting mental health treatment for suicidal thoughts. You will try light therapy or sleep schedule changes to see if it reduces suicide risk.
Pittsburgh, PennsylvaniaAges 18–25 - NCT06713083Recruiting
Physical activity for high-risk pregnant women on bed rest
This study tests whether a physical activity program can help pregnant women who are hospitalized on bed rest due to high-risk pregnancy. It aims to improve their well-being and possibly their pregnancy outcomes.
BarcelonaAges 18 years+ - NCT06726642Recruiting
Blood test study for people with inherited cancer risk
This study looks for DNA fragments in blood of people with certain inherited cancer syndromes. It may help find cancer earlier or guide better monitoring. You would give blood samples every 4 months (if in the experimental group).
Vancouver, British ColumbiaAges Up to 90 years - NCT06735690RecruitingEarly Phase 1
Immune cells plus vaccine after stem cell transplant for leukemia
This trial is for people with high-risk acute lymphoblastic leukemia who are getting a stem cell transplant from a family donor. After transplant, you'd receive a treatment that combines specially designed immune cells (CAR T cells) that target your leukemia, plus a vaccine that helps those cells work better.
Duarte, CaliforniaAges 18 years+
Hear when a new High Risk trial opens
We’ll email you when one opens — at most once a week, no account needed, unsubscribe anytime.
Common questions
- Are there clinical trials for high risk?
- Yes. Clin2 currently lists 933 recruiting high risk studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a high risk trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a high risk trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
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.