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Completed No phase listed Observational Accepts healthy volunteers

Biomarkers of CYP2D6 and CYP3A4 Variability in Pediatrics

ClinicalTrials.gov ID: NCT01118858

Public ClinicalTrials.gov record NCT01118858. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 18, 2026, 8:28 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

Exogenous and Endogenous Biomarkers of CYP2D6 and CYP3A4 Variability in Pediatrics

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Cytochrome P450 2D6 (CYP2D6) is an important enzyme in the body for breaking down many medications that are commonly used in children of various ages. The purpose of this proposal is to investigate the relative roles of development and genetic variation in CYP2D6 activity in school-aged children and adolescents with attention deficit and hyperactivity disorder and health controls using the over-the-counter cough suppressant, dextromethorphan or "DM", a standard probe for determining CYP2D6 phenotype. Embedded in the study design are sub-studies to search for by-products of normal body metabolism that reflect differences in enzyme activity, and a pharmacokinetic study to assess the consequences of CYP2D6 genetic variation on the systemic exposure to medications used by this patient population. Ultimately, the goal of the research is to personalize the use of medications in children by selecting the appropriate dose of the correct medication for individual patients.

Study identification

NCT ID
NCT01118858
Recruitment status
Completed
Study type
Observational
Phase
Not listed
Enrollment
205 participants

Conditions and interventions

Interventions

Not listed

Eligibility (public fields only)

Age range
7 Years to 15 Years
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Apr 2010 (Type not available)
Primary completion
Oct 2015 (Actual)
Completion
Oct 2015 (Actual)
Last update posted
Jul 21, 2017

2010 – 2015

United States locations

U.S. sites
2
U.S. states
2
U.S. cities
2
Facility City State ZIP Site status
The Children's Mercy Hospital Kansas City Missouri 64108 —
The University of Washington Seattle Washington 98195 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT01118858, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jul 21, 2017 · Synced Oct 18, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT01118858 live on ClinicalTrials.gov.

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