Carboxylesterase 1 Genetic Variation and Methylphenidate in ADHD
2 other identifiers
interventional
500
1 country
4
Brief Summary
The study team will determine the association between d,l-methylphenidate (MPH) therapeutic outcomes in ADHD patients and genetic variants of CES1 and reveal key associations between CES1 genotypes and the PK and PD of MPH.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_4
Started Mar 2018
Longer than P75 for phase_4
4 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
March 4, 2018
CompletedFirst Submitted
Initial submission to the registry
December 18, 2018
CompletedFirst Posted
Study publicly available on registry
December 20, 2018
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
August 1, 2025
CompletedAugust 9, 2024
August 1, 2024
7.4 years
December 18, 2018
August 6, 2024
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Maximum methylphenidate plasma concentration (Cmax),
The maximum plasma concentration achieved after dosing.
up to 8 Hours
Secondary Outcomes (3)
Time to maximum concentration (Tmax)
up 8 hours
Area under the plasma concentration curve (AUClast)
up to 8 hours
Area under the plasma concentration curve (AUCinf)
up to 8 hours
Study Arms (1)
Methylphenidate
EXPERIMENTALYouth with ADHD
Interventions
Eligibility Criteria
You may qualify if:
- \- Youth ages 6-17 years with ADHD as a primary diagnosis
You may not qualify if:
- Participants that do not have ADHD as a primary diagnosis
- Participants that do not want, require, or are not healthy enough for a single dose trial of MPH for ADHD per the clinical judgment of the treating and study clinicians
- Participants that are smokers or, are pregnant
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (4)
University of Florida
Gainesville, Florida, 32610, United States
Icahn School of Medicine at Mount Sinai
New York, New York, 10029, United States
Cincinnati Children's Hospital Medical Center
Cincinnati, Ohio, 45229, United States
Seattle Children's Hospital
Seattle, Washington, 98105, United States
Related Publications (1)
Zhang Q, Melchert PW, Awad A, McCurdy CR, Krone B, Newcorn J, Froehlich TE, Stein MA, Raeuscher J, Zhu HJ, Markowitz JS. Increased Plasma Concentrations of 6-oxo-Methylphenidate in CES1 G134E Carriers Following a Single Oral Dose of Methylphenidate. Med Chem Res. 2025 Nov;34(11):2318-2327. doi: 10.1007/s00044-025-03477-3. Epub 2025 Oct 2.
PMID: 41567292DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Jeffrey Newcorn, MD
Icahn School of Medicine at Mount Sinai
- PRINCIPAL INVESTIGATOR
Mark Stein, PhD
University of Washington
- PRINCIPAL INVESTIGATOR
Tanya Froehlich, MD
Children's Hospital Medical Center, Cincinnati
Central Study Contacts
John Markowitz, PharmD
CONTACT
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- NA
- Masking
- NONE
- Purpose
- BASIC SCIENCE
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
December 18, 2018
First Posted
December 20, 2018
Study Start
March 4, 2018
Primary Completion
August 1, 2025
Study Completion
August 1, 2025
Last Updated
August 9, 2024
Record last verified: 2024-08
Data Sharing
- IPD Sharing
- Will not share