Clinical trials
Complication clinical trials
Below are recruiting complication clinical trials, each written for real people, not researchers. We’re tracking 1,140 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT01893710Recruiting
Collecting children and adult belly fluid and tissue for kidney care research
This study collects samples from the belly (related to the peritoneal lining) to build a “biobank” for future research. It may help patients and families by improving understanding of kidney disease and kidney dialysis-related health issues.
Birmingham, AlabamaAges 1 day–90 years - NCT01055093Recruiting
Study of diabetes complications in adults soon after diagnosis
This study follows adults who have been diagnosed with diabetes recently to better understand diabetes and its complications over time. It also includes a comparison group of people who do not have diabetes to help researchers see what changes are linked to diabetes.
Düsseldorf, North Rhine-WestphaliaAges 18–69 - NCT01999140Recruiting
ICD and CRT-D device registry for patients worldwide
This trial is a real-world registry that collects information from people who receive an implantable heart defibrillator or related device. It helps doctors understand how these devices are used and how patients do over time.
Washington D.C., District of ColumbiaAges Any age - NCT01790152Recruiting
Dexrazoxane study to monitor heart damage in cancer survivors
This study tests dexrazoxane (DRZ) to see how it affects blood and heart-related “biomarkers,” or measurable signs of heart damage, after cancer treatment. It mainly targets survivors who may be at risk for cardiomyopathy (heart muscle weakness) or related heart failure.
Birmingham, AlabamaAges Any age - NCT01194648Recruiting
HIFU treatment for early prostate cancer
This trial studies a focused ultrasound treatment called HIFU for prostate cancer that appears limited to the early stages. It aims to treat cancer within the prostate while avoiding treatment spread to lymph nodes or distant organs.
London, EnglandAges Up to 90 years - NCT01528189Recruiting
High-dose insulin to reduce infections after major surgery
This trial tests whether giving high-dose insulin around the time of major abdominal surgery can lower the risk of post-surgery infections. If you’re having elective liver, pancreas, or colorectal surgery, the study looks at whether tighter sugar control helps your recovery.
Montreal, QuebecAges 18 years+ - NCT01840930Recruiting
Study of severe cerebral palsy in children
This study looks at children ages 2 to 10 who have severe, long-term cerebral palsy to better understand this condition. It may help clinicians learn what to expect and how to support children with the most significant mobility needs.
BronAges 2–10 - NCT02505464Recruiting
Pregnancies with baby birth differences
This study looks at pregnancies that are considered high-risk because the baby is affected by a difference found during pregnancy or at birth. It may help researchers understand and improve care for families dealing with these fetal (baby) anomalies.
Memphis, TennesseeAges 1 minute–50 years - NCT02426255Recruiting
Study of serious injuries and complications after trauma
This study follows people with severe injuries (including head injuries and bleeding) to better understand serious complications that can happen after trauma. Your experience may help doctors predict and prevent these complications in the future.
AngersAges 15 years+ - NCT02280733Recruiting
Chronic wound registry for real-world care documentation
This study is a real-world registry that collects information about chronic wounds and ulcers as they’re treated in everyday settings. It may help improve how care is tracked and supported, even if you don’t get a new medicine from the study.
The Woodlands, TexasAges Any age - NCT02453919Recruiting
Study of heart complications in people living with HIV
This study looks back at people with HIV to understand how often and why heart problems happen. It may help doctors better track heart risk and complications over time.
ParisAges 18 years+ - NCT07245888Recruiting
Studying pneumonia in ventilated ICU patients
This study looks at different types of lung infections in ICU patients on breathing machines. By analyzing fluid from your lungs, researchers hope to better understand pneumonia and improve treatment.
LimogesAges 18 years+ - NCT05733676Recruiting
MI Paste Plus vs resin for white spots after braces
This trial compares two tooth treatments to see which one works better for “white spot” areas that can appear after braces come off. If you have mild plaque buildup and at least one white spot on front teeth, you may be eligible to test one of these options and improve tooth surface healing.
Edmonton, AlbertaAges 12–21 - NCT07075588Recruiting
Food and coaching to lower blood pressure for Black and Hispanic adults
This study tests a program that helps people manage their blood pressure by offering healthy food choices, personal diet coaching, and text messages that match your culture. It's for Black/African American or Hispanic/Latino adults living in certain low-income areas of Maryland.
Baltimore, MarylandAges 21–70 - NCT06799052Recruiting
Cervical preparation for same-day abortion procedure
This study compares two methods of preparing the cervix (the opening to the uterus) on the same day as a dilation and evacuation (D&E) procedure for abortion at 16 to 18 weeks of pregnancy. The goal is to see which preparation approach works best and is safest.
Boston, MassachusettsAges 16 years+ - NCT07428057Recruiting
Low Calcium After Thyroid Surgery Study
This study looks at why some people develop low calcium levels after thyroid surgery. It aims to understand risk factors by reviewing medical records of patients who had their thyroid removed at Minia University Hospital.
Minya, Minya GovernorateAges 18–75 - NCT02939664Enrolling by invitation
Laparoscopic gastric bypass vs banding for weight loss
This trial compares two types of minimally invasive weight-loss surgery: gastric bypass versus a gastric band. It looks at which approach works better and is safer for people who qualify for bariatric surgery and have not succeeded with supervised weight-loss programs.
Majadahonda, MadridAges 18–65 - NCT02818192Recruiting
Kid-focused study to track kidney issues in type 2 diabetes
This study follows young people with type 2 diabetes to better understand risks for kidney problems over time. It may help researchers find earlier warning signs and improve care for adolescents living with type 2 diabetes.
Winnipeg, ManitobaAges 10–18 - NCT01957696Enrolling by invitation
Study of pancreas (and sometimes kidney) transplant outcomes
This study looks at people who receive a pancreas transplant, with or without a same-time kidney transplant, and follows them to understand their results. It may help improve how transplant teams choose patients and manage care after surgery.
OsloAges 18–65 - NCT07401641Recruiting
Pain control study for oral cancer surgery
This study tests two different pain medicines (dezocine or nalbuphine) combined with sufentanil to see which helps better control pain after oral cancer surgery with free flap reconstruction. It also looks at side effects and how well the transplanted tissue survives.
Guangzhou, GuangdongAges 18–70 - NCT07408037Recruiting
Child breathing game before surgery for anxiety and delirium
This trial tests if a fun breathing exercise before surgery can help reduce anxiety and confusion in young children. Your child may be eligible if they are 3-7 years old and having planned surgery.
Bursa, BursaAges 3–7 - NCT07411612Recruiting
Blood markers and confusion after surgery in older adults
This study looks at how inflammation and brain-related substances in the blood after surgery are linked to confusion (delirium) in older adults. It aims to find early warning signs to prevent this common complication.
ViennaAges 65 years+ - NCT07414511Recruiting
Hemophilia A research study for pregnant families
This study follows pregnant people who carry a severe hemophilia A gene and their babies after birth. It looks at how hemophilia A is passed down and how it affects families, with the goal of improving understanding and care.
Seattle, WashingtonAges Any age - NCT07416630Recruiting
Web app for tracking radiation side effects in cancer patients
This study is testing a web-based app to help track side effects from radiation therapy in people with gynecologic, urologic, or breast cancer. If you join, you would use the app on your phone or computer to report how you're feeling, which may help your care team better manage your symptoms.
LjubljanaAges 18 years+
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Common questions
- Are there clinical trials for complication?
- Yes. Clin2 currently lists 1,140 recruiting complication 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 complication 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 complication 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.