Down syndrome

Down syndrome regression disorder (DSRD) causes a sudden loss of thinking, language, or daily skills in some people with Down syndrome. Researchers are testing ublituximab, an antibody that targets immune cells, in 20 adults aged 18 to 40 who have DSRD and did not respond well en…

This trial tests a play-based program called EXPO, where caregivers guide children with Down syndrome through fun activities designed to strengthen executive function, the mental skills behind planning, focus, and self-control. Researchers will compare children who receive EXPO r…

This trial compares two exercise programs—vestibular stimulation and foot intrinsic muscle exercises—to see which better improves balance and functional mobility in children with Down syndrome aged 4 to 15. Children with Down syndrome often have balance and mobility challenges du…

This early-stage trial tests a supplement called MIB-626 (a form of NMN) in 24 adults with Down syndrome. The goal is to see if it is safe and can raise NAD+ levels, which may help protect against Alzheimer's disease. Participants take the pill or a placebo for 28 days and are mo…

This study tests whether donanemab, given as an IV infusion every 4 weeks, can safely lower amyloid plaques in the brains of 60 adults aged 35–50 with Down syndrome. Participants receive either donanemab or a placebo for 12 months, followed by a 12-month extension where everyone …

This study tests whether a special pacifier, called CURAPROX, can reduce the severity of obstructive sleep apnea (OSA) in infants with Down syndrome. Fifty infants will be enrolled at one month old, with half using the pacifier and half not. At six months, sleep tests will measur…

This early-stage trial will test whether higher-than-standard doses of memantine, a drug already approved for Alzheimer's, are safe and tolerable in 25 adolescents and young adults with Down syndrome. The study also looks for early signs that the drug might improve memory and thi…

This pilot study tests a new therapy called Syntactic-Semantic Visual Configuration Intervention (SSVCI) for Urdu-speaking children aged 6 to 12 who struggle to form phrases and sentences. The therapy uses visual cues and structured activities to help children understand and prod…

This study tests whether adding mini-trampoline exercises (rebound therapy) to standard chest physical therapy can improve lung function in children with Down syndrome. Forty children aged 9 to 13 will be randomly assigned to either chest therapy alone or chest therapy plus rebou…

This study tests whether a resilience training program can help parents of young children with Down syndrome feel more accepting and less burdened. About 50 parents will be randomly assigned to either the training or usual care. Researchers will measure changes in acceptance, rej…

This study tests whether a natural compound called phenolic complex k110-42 can improve attention and thinking in children with Down syndrome. About 108 children aged 4 to 8 will take the compound and have their cognitive skills measured with standard tests. The goal is to ease s…

This study is testing a program called Mothers and Babies for Down Syndrome (MBDS) to help prevent depression in new and expectant parents of infants with Down syndrome. About 72 parents will take part in a small pilot study to see if the program helps with feelings of grief and …

This study looks at blood health in children with numerical chromosomal disorders, such as Down syndrome, Turner syndrome, Klinefelter syndrome, Edwards syndrome, and Patau syndrome. Researchers will measure blood counts and check for issues like anemia, low platelets, or abnorma…

This study looks at whether a suspension walker is a practical tool for pre-walking infants with Down syndrome to use at home. Twelve infants aged 10-13 months will try using the walker for 20 minutes a day, 5 days a week over three months. Researchers want to see if families can…

This study will look at 230 children with Down syndrome and their parents to find out how many have a rare form called translocation Down syndrome. Researchers will use blood tests to check if parents carry a balanced translocation that can be passed down. The goal is to better u…