Chromosomal disorder
MONDO:0019040Clinical conditions caused by an abnormal chromosome constitution in which there is extra or missing chromosome material (either a whole chromosome or a chromosome segment). (from Thompson et al., Genetics in Medicine, 5th ed, p429)
Also known as: chromosomal disease, chromosomal disorder, chromosomal disorders, chromosome disorder, disorder, chromosomal, disorder, chromosome, disorders, chromosomal, disorders, chromosome
236 clinical trials for this condition and its sub-types.
Follow this condition — get notified about new trialsSub-types
Broader categories
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Could a Vitamin-Like pill protect the brains of people with down syndrome?
Disease control Not yet recruitingThis 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…
Phase: PHASE1 • Sponsor: Brigham and Women's Hospital • Aim: Disease control
Last updated Jun 27, 2026 14:01 UTC
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New hope for Alzheimer's in down syndrome: drug trial launches
Disease control Not yet recruitingThis study tests a drug called mivelsiran in 58 adults with Down syndrome who have early-stage Alzheimer's. Participants receive either the drug or a placebo via injection into the spine every few months for two years. The goal is to see if the drug can reduce brain changes linke…
Phase: PHASE2 • Sponsor: Alnylam Pharmaceuticals • Aim: Disease control
Last updated Jun 27, 2026 13:05 UTC
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Could a drug clear Alzheimer's plaques in people with down syndrome?
Disease control Not yet recruitingThis 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 …
Phase: PHASE4 • Sponsor: Michael Rafii, MD, PhD • Aim: Disease control
Last updated Jun 27, 2026 12:33 UTC
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Could a pacifier help babies with down syndrome breathe better at night?
Prevention Not yet recruitingThis 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…
Phase: NA • Sponsor: Hospices Civils de Lyon • Aim: Prevention
Last updated Jun 27, 2026 14:00 UTC
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Texts and calls could save lives: new study aims to boost baby vaccinations
Prevention Not yet recruitingThis study tests whether sending text messages or voice call reminders with helpful behavior change tips can improve how many babies get their full set of vaccines on time. About 7,800 caregivers of newborns in Bangladesh will be split into three groups: one gets no reminders, on…
Phase: NA • Sponsor: Japan Institute for Health Secutiry • Aim: Prevention
Last updated Jun 27, 2026 12:07 UTC
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Could a higher dose of an Alzheimer's drug boost thinking skills in down syndrome?
Symptom relief Not yet recruitingThis 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…
Phase: PHASE1 • Sponsor: University Hospitals Cleveland Medical Center • Aim: Symptom relief
Last updated Jun 27, 2026 12:32 UTC
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Bouncing to better breathing: trampoline therapy tested for down syndrome kids
Symptom relief Not yet recruitingThis 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…
Phase: NA • Sponsor: Beni-Suef University • Aim: Symptom relief
Last updated Jun 27, 2026 09:07 UTC
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Could a common nerve drug replace carpal tunnel surgery?
Symptom relief Not yet recruitingThis study tests whether 4-aminopyridine, a drug already approved for other nerve conditions, can improve symptoms of carpal tunnel syndrome or delay the need for surgery. Researchers will give 160 adults either the drug or a placebo for 6 weeks and track symptom changes using ha…
Phase: PHASE2 • Sponsor: John Elfar • Aim: Symptom relief
Last updated Jun 27, 2026 08:14 UTC
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Parenting a child with down syndrome? new study tests resilience training to ease burden
Symptom relief Not yet recruitingThis 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…
Phase: NA • Sponsor: Ain Shams University • Aim: Symptom relief
Last updated Jun 27, 2026 08:07 UTC
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Could a natural compound sharpen minds of kids with down syndrome?
Symptom relief Not yet recruitingThis 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…
Phase: PHASE3 • Sponsor: Mansoura University • Aim: Symptom relief
Last updated Jun 27, 2026 08:03 UTC
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New hope for Prader-Willi: drug targets uncontrollable hunger
Symptom relief Not yet recruitingThis study tests an experimental drug called BMB-101 in 16 adults with Prader-Willi syndrome who struggle with severe, constant hunger. The trial is double-blind and placebo-controlled, meaning some participants get the drug and some get a dummy treatment, and neither they nor th…
Phase: PHASE2 • Sponsor: Bright Minds Biosciences Pty Ltd • Aim: Symptom relief
Last updated Jun 27, 2026 08:02 UTC
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Can a special walker help babies with down syndrome take their first steps?
Knowledge-focused Not yet recruitingThis 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…
Phase: NA • Sponsor: University of Southern California • Aim: Knowledge-focused
Last updated Jun 27, 2026 13:02 UTC
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Wearable sensors could transform CMT1A monitoring
Knowledge-focused Not yet recruitingThis study will use wearable activity trackers to measure how much people with Charcot-Marie-Tooth disease type 1A (CMT1A) move at home. Researchers want to see if sensor data matches standard clinical tests. The goal is to improve patient follow-up and support future trials of n…
Sponsor: University Hospital, Limoges • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:36 UTC
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Tiny blood sample, big clues: stem cell study aims to unlock williams syndrome brain mystery
Knowledge-focused Not yet recruitingThis study will collect blood from 3 children with Williams syndrome and 3 healthy children. Scientists will turn blood cells into stem cells and then into brain cells to study how the brain develops differently in Williams syndrome. The goal is to understand the disease better, …
Sponsor: Qilu Hospital of Shandong University • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:09 UTC
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Brain study aims to crack social skill mysteries in rare disorders
Knowledge-focused Not yet recruitingThis study looks at how the brains of children with Williams syndrome and autism differ, focusing on social and thinking skills. Researchers will compare 75 children aged 3-12 from three groups: those with Williams syndrome, those with autism, and typically developing kids. No tr…
Sponsor: Qilu Hospital of Shandong University • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:04 UTC
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Scientists investigate hidden genetic patterns in rare childhood disorders
Knowledge-focused Not yet recruitingThis study aims to better understand a condition called multilocus imprinting disorder (MLID), where multiple genes are affected by abnormal chemical marks. Researchers will test a new technique to detect these marks in 96 people, including those with known imprinting disorders a…
Phase: NA • Sponsor: Assistance Publique - Hôpitaux de Paris • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:01 UTC
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New study aims to map social challenges in rare genetic syndrome
Knowledge-focused Not yet recruitingThis study will follow 15 people aged 5 to 50 with 7q11.23 microduplication syndrome, a rare genetic condition linked to autism and social difficulties. Researchers will track developmental milestones, social skills, and behavior using interviews and questionnaires. The goal is t…
Phase: NA • Sponsor: Hospices Civils de Lyon • Aim: Knowledge-focused
Last updated Jun 27, 2026 11:00 UTC
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Discarded embryos hold clues to better IVF success
Knowledge-focused Not yet recruitingThis observational study looks at embryos from IVF that are not used for pregnancy to find molecular patterns related to embryo quality. Researchers hope to learn why some embryos are healthy and others are not, which could improve future fertility treatments. About 150 patients …
Sponsor: Igenomix • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:08 UTC
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Scientists to unravel trust in intellectual disability
Knowledge-focused Not yet recruitingThis study looks at how people with Down syndrome and Fragile X syndrome decide who to trust. Researchers will use eye-tracking and behavioral tasks to measure how participants read faces, behaviors, and detect deception. The goal is to understand the brain mechanisms behind trus…
Sponsor: Hospices Civils de Lyon • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:08 UTC
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New study aims to unravel fatigue in common nerve disease
Knowledge-focused Not yet recruitingThis pilot study looks at fatigue in people with Charcot-Marie-Tooth type 1A (CMT1A), a nerve disorder affecting arms and legs. Researchers will compare 22 patients with 22 healthy volunteers to measure how fatigue affects walking and balance. They use tests like muscle strength …
Phase: NA • Sponsor: University Hospital, Strasbourg, France • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:06 UTC
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Heart defects and hidden genes: new study to reveal genetic links
Knowledge-focused Not yet recruitingThis study will examine 138 children with congenital heart disease to find out how many also have chromosomal abnormalities. Researchers will use a standard genetic test called karyotyping to look for missing or extra chromosomes. The goal is to improve diagnosis, treatment plann…
Sponsor: Assiut University • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:52 UTC
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New study to uncover hidden genetic carriers of down syndrome in families
Knowledge-focused Not yet recruitingThis 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…
Sponsor: Assiut University • Aim: Knowledge-focused
Last updated Jun 26, 2026 18:22 UTC