Hepatic Drug Biotransformation in Children With Obstructive Sleep Apnea

NCT ID: NCT00310323

Last Updated: 2009-03-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

69 participants

Study Classification

INTERVENTIONAL

Study Start Date

2003-01-31

Study Completion Date

2006-02-28

Brief Summary

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The purpose of this research study is to determine the effect of chronic nighttime low oxygen saturations on selected body systems (liver) that break down drugs in children with obstructive sleep apnea syndrome (OSAS).

Detailed Description

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The purpose of this study is to determine the effect of chronic intermittent nocturnal hypoxia on selected hepatic drug-metabolizing enzyme systems in children with OSAS. The specific aims are to evaluate the activities of cytochrome P450 (CYP)1A2, N-acetyltransferase-2 (NAT-2), xanthine oxidase (XO)and CYP2D6 in children with OSAS and to determine the effect of OSAS treatment on the activities of these enzyme systems.

Conditions

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Sleep Apnea

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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1

Children with OSAS identified via sleep study

Group Type EXPERIMENTAL

Dextromethorphan

Intervention Type DRUG

0.5 mg/kg (maximum 30 mg)

Caffeine

Intervention Type DRUG

Administered as 4 ounces of Coca-Cola

Interventions

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Dextromethorphan

0.5 mg/kg (maximum 30 mg)

Intervention Type DRUG

Caffeine

Administered as 4 ounces of Coca-Cola

Intervention Type DRUG

Eligibility Criteria

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Inclusion Criteria

* Children ages 4 to 16 years with suspected uncomplicated OSAS

Exclusion Criteria

* Children with complicated OSAS (craniofacial abnormalities, neuromuscular disorders)
* Children who are receiving medications known to induce or inhibit hepatic CYP1A2, NAT-2, XO, CYP2D6 or CYP3A4 activity
* Children who are exposed to second hand smoke for greater than 8 hours per day.
* Children with hypersensitivity to caffeine or dextromethorphan
* Children who are receiving corticosteroids or thyroid hormone
Minimum Eligible Age

4 Years

Maximum Eligible Age

16 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Louisville

OTHER

Sponsor Role collaborator

Virginia Commonwealth University

OTHER

Sponsor Role lead

Responsible Party

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Virginia Commonwealth University

Principal Investigators

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Mary Jayne Kennedy, Pharm.D.

Role: PRINCIPAL_INVESTIGATOR

Virginia Commonwealth University

Locations

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University of Louisville

Louisville, Kentucky, United States

Site Status

Virginia Commonwealth University

Richmond, Virginia, United States

Site Status

Countries

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United States

Other Identifiers

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OSAS 003-03

Identifier Type: -

Identifier Source: org_study_id

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