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Study details
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Carboxylesterase 1 Genetic Variation and Methylphenidate in ADHD

Icahn School of Medicine at Mount Sinai
NCT IDNCT03781752ClinicalTrials.gov data as of Apr 2026
Phase

Phase 4

Target enrollment

500

Study length

about 7.5 years

Ages

6–17

Locations

4 sites in FL, NY, OH +1

What this study is about

This trial is testing how genetic variations in carboxylesterase 1 (CES1) affect the way methylphenidate (MPH), a medication, works in children with ADHD. The goal is to find out if certain CES1 genes are linked to how MPH affects people with ADHD.

Simplified from trial records by PatientMatch.

What you may be asked to do

  • 1.Take Methylphenidate

Participation Burden

What's physically and logistically required of participants.

Logistics & Travel
In-person visits

Requires travel to a study site

Physical Intervention
Oral

How treatment is administered

Treatment Assignment
All receive treatment

Everyone gets the investigational treatment.

Extracted study details

Pulled from the trial record to show what is being tested and what the study is measuring.

Drug classes

methylphenidate (CNS stimulant; blocks reuptake of dopamine and norepinephrine)

Drug routes

oral (Disintegrating Oral Tablet)

Endpoints

Primary: Maximum methylphenidate plasma concentration (Cmax),

Secondary: Time to maximum concentration (Tmax)

Body systems

Psychiatry / Mental Health