Research and clinical-trial resources

Research registries can help families learn what is being studied. A registry entry is not proof that a study is safe, effective, current, or appropriate for a particular child. Do not stop treatment, delay urgent care, or change medication to qualify for a study.

Official trial registries

• ClinicalTrials.gov — international studies searchable by condition, age, location, and recruitment status.
• WHO ICTRP Search Portal — international trial-registry search.
• EU Clinical Trials Information System — EU/EEA medicinal-product trials.
• FDA: Learn About Clinical Trials — participation information and questions to ask.

Search terms

Try synonyms such as ADHD, attention-deficit/hyperactivity disorder, ARFID, avoidant/restrictive food intake disorder, pediatric feeding disorder, feeding and swallowing, parent training, or sleep ADHD. Check age, location, eligibility, recruitment status, study design, sponsor, risks, compensation, travel, and contact details.

Questions before contacting a study team

• Is the study recruiting children in this age range and location?
• What are the known risks, burdens, alternatives, and visit requirements?
• Does participation replace any usual care, or can usual care continue?
• Who pays for travel, testing, treatment after the study, or unexpected complications?
• How will consent, child assent, privacy, and withdrawal work?

Reviewed: September 20, 2026. Registry details change; the registry and study team are the authoritative sources for current eligibility and participation information.