Study to Evaluate Diphenhydramine in Children and Adolescents

Allergic Rhinitis Clinical Trial

Official title:

An Open-Label, Single-Dose Study Evaluating the Pharmacokinetics of Diphenhydramine in Children and Adolescents

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT00762749
• Other study ID #: DPHNCO1003
• Status: Completed
• Phase: Phase 1
• First received: September 26, 2008
• Last updated: October 4, 2011
• Start date: September 2008
• Est. completion date: November 2008

Study information

• Verified date: October 2011
• Source: Johnson & Johnson Consumer and Personal Products Worldwide
• Contact: n/a
• Is FDA regulated: No
• Health authority: United States: Food and Drug Administration
• Study type: Interventional

Clinical Trial Summary

To characterize the pharmacokinetics of diphenhydramine in two pediatric populations: children, ages 2 to < 12 years, and adolescents, ages 12 to < 18 years.

Description:

This study has an open-label, single-dose classical pharmacokinetic design with no comparator treatment or group. Twenty-four (24) children, ages 2 to < 12 years, and 12 adolescents, ages 12 to < 18 years, with symptoms due to hay fever or other upper respiratory allergies will complete the study. To ensure that younger children are represented, at least 35% (8) of the children enrolled will range from 2 to < 6 years of age.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 36
• Est. completion date: November 2008
• Est. primary completion date: November 2008
• Accepts healthy volunteers: No
• Gender: Both
• Age group: 2 Years to 17 Years

Eligibility

Inclusion Criteria:

• Male and female children and adolescents, ages 2 to < 18 years, with a minimum weight of 24 pounds will be eligible to participate. In addition, each subject will be > 5th percentile and < 95th percentile for weight based on age and gender.

• Subjects will have a body mass index (BMI) > 5th percentile and less than or equal to 90th percentile for age and gender.

• Subjects who have a history of allergic rhinitis and who are experiencing symptoms due to hay fever or other upper respiratory allergies will be included.

• Subjects who do not use concurrent medications, except for low-dose inhaled glucocorticosteroids for allergic rhinitis or mild concurrent asthma, if dose is stabilized before entry in the study (ie, dose is not changed for 1 month prior to entry or during the study), and inhaled short-acting beta-2 adrenergic agonists for concomitant asthma, as needed;

Exclusion Criteria:

• Evidence or history of clinically significant hematological, renal, endocrine, pulmonary, gastrointestinal, cardiovascular, hepatic, psychiatric, or neurologic disease.

• Findings from the medical history or physical examination with vital sign measurements that are not within the range of clinical acceptability.

• Have a known sensitivity or allergy to diphenhydramine or EMLA cream.

• Have a known sensitivity or allergy to red dye.

• Have asthma symptoms at the time of study entry or requiring medications other than allowed in Inclusion Criterion 4;

• Took any prescription (other than allowed in Inclusion Criterion 4) or nonprescription medication, within seven days or five half-lives (whichever is longer) before the study's start date.

• Took any herbal supplements or drank grapefruit juice with 28 days of the study's start date.

• Participated in, or completed, another clinical trial within seven weeks before the study's start date.

• Have a history of drug, alcohol, and tobacco use (older children and adolescents)

• Have a history of hepatitis B, a previous positive test for hepatitis B surface antigen, or a previous positive hepatitis C antibody.

• Have a history of HIV infection or previous demonstration of HIV antibodies.

• Pregnant or nursing females; females of childbearing potential who are unwilling or unable to use an acceptable method of contraception from at least three months prior to the first dose of study medication until completion of follow-up procedures.

Study Design

Allocation: Non-Randomized, Endpoint Classification: Pharmacokinetics Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Basic Science

Related Conditions & MeSH terms

• Allergic Rhinitis

Intervention

Drug:
• diphenhydramine HCl
A single liquid dose of diphenhydramine HCl (12.5 mg /5 mL) followed by water, according to an age-weight dosing schedule

Locations

Country	Name	City	State
United States	Arkansas Medical Research Testing Center	Little Rock	Arkansas

Sponsors (1)

Lead Sponsor	Collaborator
Johnson & Johnson Consumer and Personal Products Worldwide

Country where clinical trial is conducted

United States, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Pharmacokinetic parameters		predose (0), and 0.5, 1, 1.5, 2, 4, 6, 8, 10, 12, and 24 hours after the dose	No
Secondary	Safety Assessments will consist of monitoring vital signs and all non-serious Adverse Events (AEs) and Serious Adverse Events (SAEs), their frequency, severity, seriousness, and relationship to the investigational product.		throughout duration of the study + 2 days (+ 30 days for spontaneously reported SAEs)	No