Prader-Willi syndrome
MONDO:0008300Prader-Willi syndrome is a rare genetic disorder characterized by hypothalamic-pituitary abnormalities with severe hypotonia during the neonatal period and first two years of life and the onset of hyperphagia with a risk of morbid obesity during infancy and adulthood, learning difficulties and behavioral problems or severe psychiatric problems.
Also known as: Prader-Labhart-Willi syndrome, Prader-Willi syndrome, Prader-Willi-Labhart syndrome, Willi-Prader syndrome, PWS, Prader-Willi syndrome chromosome region, Prader-Willi-like syndrome associated with chromosome 6, obesity, muscular hypotonia, intellectual disability, short stature, hypogonadotropic hypogonadism, and small hands and feet
64 clinical trials for this condition and its sub-types.
Follow this condition — get notified about new trialsSub-types
Broader categories
-
New drug trial hopes to tame rare Syndrome's relentless hunger
Disease control Recruiting nowThis early-stage trial tests an experimental drug called CSTI-500 in 12 people aged 13 to 50 with Prader-Willi syndrome, a genetic condition that causes constant hunger and behavioral issues. The study aims to see if the drug is safe and can reduce excessive eating behaviors. Par…
Phase: PHASE2 • Sponsor: ConSynance Therapeutics • Aim: Disease control
Last updated Jun 27, 2026 12:33 UTC
-
Gut bacteria boost may curb obesity in rare genetic disorder
Disease control Recruiting nowThis study tests whether probiotics and prebiotics can safely help control appetite and weight gain in 60 children with Prader-Willi syndrome, a rare genetic condition that causes severe obesity. Researchers will measure changes in body mass index, body fat, and gut bacteria over…
Phase: NA • Sponsor: Children's Hospital of Fudan University • Aim: Disease control
Last updated Jun 27, 2026 12:01 UTC
-
New exercise program aims to get adults with intellectual disability moving more
Disease control Recruiting nowThis study tests a 16-week inclusive exercise program called PACE for adults with intellectual disability. Participants will attend fitness classes, meet with coaches, and use a web dashboard to set goals. The trial includes 376 people and will measure daily steps and moderate-to…
Phase: NA • Sponsor: University of North Carolina, Chapel Hill • Aim: Disease control
Last updated Jun 27, 2026 09:08 UTC
-
New weekly shot aims to curb obesity in rare genetic disorders
Disease control Recruiting nowThis study tests a weekly injection called RM-718 in healthy people with obesity and in patients with obesity caused by problems in the MC4R pathway, including hypothalamic obesity and Prader-Willi syndrome. The main goal is to check the drug's safety and how the body processes i…
Phase: PHASE1, PHASE2 • Sponsor: Rhythm Pharmaceuticals, Inc. • Aim: Disease control
Last updated Jun 27, 2026 08:06 UTC
-
Could a diabetes drug help teens with rare obesity syndromes shed pounds?
Disease control Recruiting nowThis study tests tirzepatide, a weight loss medication, in 36 young adults aged 18-26 with obesity from Prader-Willi syndrome, hypothalamic obesity, or general causes. Participants take the drug for 48 weeks to see how much weight they lose and how their health changes. The goal …
Phase: PHASE4 • Sponsor: Grace Kim • Aim: Disease control
Last updated Jun 26, 2026 17:35 UTC
-
New group therapy aims to tame meltdowns in Prader-Willi teens
Symptom relief Recruiting nowThis study tests a group program to help teens (ages 13-17.5) with Prader-Willi Syndrome and their families learn practical ways to handle irritability, meltdowns, and anxiety. Ten participants will attend weekly 90-minute sessions. The goal is to see if the program improves emot…
Phase: NA • Sponsor: Children's Mercy Hospital Kansas City • Aim: Symptom relief
Last updated Jun 27, 2026 12:39 UTC
-
Can a light box beat daytime sleepiness in Prader-Willi?
Symptom relief Recruiting nowThis study tests whether bright light therapy can help reduce excessive daytime sleepiness in people with Prader-Willi syndrome. About 50 participants will receive either bright light or a dim placebo light. The goal is to see if the therapy improves alertness, mood, and behavior…
Phase: NA • Sponsor: Maimonides Medical Center • Aim: Symptom relief
Last updated Jun 27, 2026 12:34 UTC
-
New drug aims to tackle sleepiness in rare genetic disorder
Symptom relief Recruiting nowThis Phase 3 trial tests whether pitolisant can reduce excessive daytime sleepiness in people aged 6 and older with Prader-Willi syndrome. About 134 participants will receive either pitolisant or a placebo, and researchers will also look at effects on behavior and appetite. The s…
Phase: PHASE3 • Sponsor: Harmony Biosciences Management, Inc. • Aim: Symptom relief
Last updated Jun 27, 2026 11:03 UTC
-
New therapy team aims to help picky eaters with developmental disorders
Symptom relief Recruiting nowThis study tests whether a team of a psychologist, speech therapist, and motor therapist can help children aged 2-7 with neurodevelopmental disorders eat more foods and have fewer mealtime struggles. 24 children will be split into two groups: one gets the team therapy, the other …
Phase: NA • Sponsor: IRCCS San Raffaele Roma • Aim: Symptom relief
Last updated Jun 27, 2026 09:08 UTC
-
Kids take the lead: new study lets children with disabilities choose their own therapy goals
Symptom relief Recruiting nowThis study tests a new approach called ENGAGE, where children with disabilities (like autism or cerebral palsy) help set their own therapy goals. About 96 kids aged 5-12 and their therapists will be split into two groups: one using ENGAGE and the other using usual therapy. Resear…
Phase: NA • Sponsor: University of Alberta • Aim: Symptom relief
Last updated Jun 27, 2026 08:08 UTC
-
Magnetic brain zap could curb uncontrollable hunger in rare disorder
Symptom relief Recruiting nowThis study tests whether a noninvasive technique called transcranial magnetic stimulation (TMS) can change brain activity related to hunger and fullness in people with Prader-Willi syndrome. Researchers will stimulate a part of the brain called the cerebellum and measure changes …
Phase: NA • Sponsor: Brigham and Women's Hospital • Aim: Symptom relief
Last updated Jun 27, 2026 08:01 UTC
-
Can coaching parents boost social skills in kids with disabilities?
Symptom relief Recruiting nowThis study tests whether a speech therapy that involves parents can improve early social and communication skills in children aged 6 months to 5 years with neurodevelopmental disabilities. One group gets the parent-focused therapy, while the other gets standard speech therapy. Re…
Phase: NA • Sponsor: IRCCS Eugenio Medea • Aim: Symptom relief
Last updated Jun 27, 2026 07:59 UTC
-
Heart-Brain link: new study tracks hidden disabilities in babies born with heart defects
Knowledge-focused Recruiting nowThis study follows 450 babies born with serious heart defects to find early signs of developmental delays by 6 months of age. Researchers want to understand why over half of these children face learning, thinking, or behavior challenges later in life. The goal is to identify risk…
Sponsor: Nantes University Hospital • Aim: Knowledge-focused
Last updated Jul 03, 2026 00:00 UTC
-
NIH launches major study to unravel hormone mysteries
Knowledge-focused Recruiting nowThis study at the National Institutes of Health is looking at 1,000 adults with known or suspected hormone gland (endocrine) disorders. The goal is to better understand these conditions and help train doctors. Participants may receive tests, treatments, or surgery as part of thei…
Sponsor: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) • Aim: Knowledge-focused
Last updated Jul 02, 2026 00:00 UTC
-
Massive study aims to unlock genetic secrets of childhood hormone disorders
Knowledge-focused Recruiting nowThis study enrolls up to 15,000 children with known or suspected endocrine or metabolic disorders, along with their family members. Researchers will collect medical records, blood, saliva, and other samples to identify genetic changes linked to these conditions. The goal is to be…
Sponsor: Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) • Aim: Knowledge-focused
Last updated Jun 27, 2026 14:02 UTC
-
Massive study seeks families to unlock secrets of childhood brain disorders
Knowledge-focused Recruiting nowThis study aims to learn more about childhood-onset behavioral, psychiatric, and developmental disorders by observing people of all ages who have these conditions, along with their family members. Researchers will collect medical histories, perform psychiatric assessments, and ma…
Sponsor: National Institute of Mental Health (NIMH) • Aim: Knowledge-focused
Last updated Jun 27, 2026 14:02 UTC
-
Brain scans reveal sensory differences in neurodevelopmental disorders
Knowledge-focused Recruiting nowThis study looks at how the brain responds to sensory inputs like sight and sound in 200 children and adults, some with neurodevelopmental disorders (NDD) and some without. Participants will have EEG recordings during sensory tasks, complete behavioral tests, and practice percept…
Sponsor: University Hospital, Tours • Aim: Knowledge-focused
Last updated Jun 27, 2026 14:00 UTC
-
Scientists track Kids' sleep to unlock brain growth secrets
Knowledge-focused Recruiting nowThis study aims to learn how sleep changes as children's brains grow, by collecting sleep and development data from healthy children and those with conditions like autism or ADHD. About 244 children ages 6 months to 8 years will have overnight sleep studies, developmental tests, …
Sponsor: National Institute of Mental Health (NIMH) • Aim: Knowledge-focused
Last updated Jun 27, 2026 13:03 UTC
-
Scientists launch major study to unravel hormone disorders
Knowledge-focused Recruiting nowThis study enrolls adults with known or suspected endocrine (hormone gland) disorders, such as diabetes or thyroid disease, to help researchers learn more about these conditions. Participants will undergo medical exams, blood and imaging tests, and possibly genetic testing. The m…
Sponsor: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK) • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:31 UTC
-
Massive study seeks hidden biological clues in Kids' brain disorders
Knowledge-focused Recruiting nowThis study looks at medical records of 1000 children with conditions like autism, epilepsy, and Down syndrome to find common biological patterns. Researchers want to understand what causes these disorders and how children respond to treatments. The goal is to improve diagnosis an…
Sponsor: Richard Frye • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:08 UTC
-
Can a simple questionnaire predict who will follow their treatment?
Knowledge-focused Recruiting nowThis study is testing a tool called B-COMPASS that uses a 22-question survey to predict whether people will follow their prescribed treatments. Researchers will enroll 3100 adults with cardiovascular, endocrine, immune, nerve, cancer, or rare diseases across Europe. The goal is t…
Phase: NA • Sponsor: Technical University of Madrid • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:01 UTC
-
Scientists map DNA 'Signatures' in rare fetal diseases
Knowledge-focused Recruiting nowThis study looks at DNA methylation patterns (chemical tags on DNA) in fetuses with rare genetic diseases. Researchers will analyze DNA from amniotic fluid and tissue samples to create reference signatures. The goal is to improve diagnosis of these conditions before birth. The st…
Sponsor: Assistance Publique - Hôpitaux de Paris • Aim: Knowledge-focused
Last updated Jun 27, 2026 12:01 UTC
-
New study aims to cut missed doctor visits for kids with developmental disorders
Knowledge-focused Recruiting nowThis study looks at ways to help families show up for their scheduled appointments at clinics for autism and other neurodevelopmental disorders. Researchers will test different types of reminder messages and see if having a patient navigator call high-risk families makes a differ…
Phase: PHASE3 • Sponsor: Hugo W. Moser Research Institute at Kennedy Krieger, Inc. • Aim: Knowledge-focused
Last updated Jun 27, 2026 11:02 UTC
-
2000-Patient study aims to uncover hidden metabolic risks in rare genetic disorders
Knowledge-focused Recruiting nowThis observational study will follow 2000 children and adults with imprinting disorders—rare genetic conditions like Silver-Russell and Prader-Willi syndromes. Researchers aim to describe the natural history of these diseases and identify common metabolic profiles, risks for obes…
Sponsor: Institut National de la Santé Et de la Recherche Médicale, France • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:05 UTC
-
New registry aims to unlock secrets of rare diseases
Knowledge-focused Recruiting nowThis study is creating a large database to collect information on people with rare diseases like amyloidosis, sarcoidosis, and Gaucher disease. Researchers will track patients' health over time, including their symptoms, treatments, and outcomes. The goal is to improve diagnosis …
Sponsor: Hospital Italiano de Buenos Aires • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:11 UTC
-
Scientists launch study to unlock mysteries of rare neurodevelopmental conditions
Knowledge-focused Recruiting nowThis study observes 100 people with rare genetic neurodevelopmental disorders like Baker Gordon Syndrome and Syt-1 disorder. Researchers will track symptoms, collect genetic and imaging data, and create cell models to better understand these conditions. The goal is to improve dia…
Sponsor: University of Missouri-Columbia • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:10 UTC
-
Massive study tracks 1,000 people with rare genetic brain conditions to map symptoms
Knowledge-focused Recruiting nowThis study follows 1,000 people who have certain genetic changes (hnRNP and others) that may cause developmental delays, autism, seizures, or muscle problems. Researchers collect medical records, school reports, and questionnaires to see how these gene variants affect behavior, t…
Sponsor: Columbia University • Aim: Knowledge-focused
Last updated Jun 27, 2026 07:55 UTC
-
Letting kids set their own therapy goals: a game changer?
Knowledge-focused Recruiting nowThis study tests whether a child-focused goal-setting method called ENGAGE helps children with neurodevelopmental disabilities do better in therapy. About 96 kids aged 5-12 and their therapists will be split into two groups: one using ENGAGE and one using usual care. Researchers …
Phase: NA • Sponsor: University of Alberta • Aim: Knowledge-focused
Last updated Jun 26, 2026 18:10 UTC
-
Gene tests for sick newborns: a lifesaver in the NICU?
Knowledge-focused Recruiting nowThis study is testing whether using rapid genetic sequencing can help doctors diagnose and treat birth defects in newborns in intensive care. Researchers will enroll 2,000 babies and compare death rates, disability rates, and genetic findings. The goal is to see if personalized t…
Sponsor: Children's Hospital of Fudan University • Aim: Knowledge-focused
Last updated Jun 26, 2026 13:36 UTC