Finding and understanding clinical trials

Clinical trials can help families learn about research, but a registry entry is not an endorsement, proof of safety, or recommendation that a child should participate. Eligibility, location, language, travel, time, risks, and current recruitment must be confirmed with the study team and the child’s clinician.

Where to search

• ClinicalTrials.gov: international registry with searches by condition, age, location, recruitment status, and study identifier.
• WHO ICTRP Search Portal: international search across participating registry networks.
• EU Clinical Trials Information System: European Union and European Economic Area medicinal-product trials.

Search terms may include ARFID, avoidant/restrictive food intake disorder, pediatric feeding disorder, feeding and swallowing, ADHD children, parent training, or sleep ADHD. Try synonyms and check the age and recruitment filters. ClinicalTrials.gov and WHO ICTRP provide registry search information, not clinical recommendations.[1][2]

The EU registry and FDA participation guidance serve different jurisdictions and purposes; read the study record and discuss participation with the child’s clinician.[3][4]

Questions before contacting a study

• Is the study recruiting now, and when was the status last updated?
• What ages and diagnoses are eligible?
• Does the study require a confirmed diagnosis or accept a referral?
• What visits, travel, language, assessments, or home tasks are required?
• What are the known risks, burdens, alternatives, and compensation rules?
• Who pays for usual care and what happens if the child becomes medically unstable?
• Can participation be stopped, and who remains responsible for routine clinical care?

What a registry entry cannot tell you by itself

A registry record does not prove that an intervention works, that a listing is current, or that a study is appropriate for a particular child. For example, a small ARFID parent-training pilot illustrates why age, study size, design, and preliminary status matter.[5] Do not stop treatment, delay urgent care, or change medication to qualify for a study.

Sources

[1] ClinicalTrials.gov — U.S. National Library of Medicine registry with international studies.

[2] WHO International Clinical Trials Registry Platform — international trial-search portal.

[3] EU Clinical Trials Information System — European Union and European Economic Area trial-search portal.

[4] FDA: Learn About Clinical Trials — U.S. government information about participation and questions.

[5] Example ARFID parent-training pilot — illustrates why age, study size, design, and preliminary status matter.