Fexofenadine (Allegra®) in Healthy Adults Who Have Been Identified as Slow Metabolizers for Desloratadine
A Randomized, Double-blind, Repeat-dose, Crossover Study to Evaluate the Pharmacokinetics, Safety, and Tolerability of Desloratadine (Clarinex®) Compared to Fexofenadine (Allegra®) in Healthy Adults Who Have Been Identified as Slow Metabolizers for Desloratadine.
1 other identifier
interventional
220
1 country
1
Brief Summary
To evaluate the single-dose and steady-state pharmacokinetics of desloratadine and fexofenadine in desloratadine slow metabolizers. To evaluate the safety and tolerability of desloratadine compared to fexofenadine following single and multiple oral doses administered to desloratadine slow metabolizers.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for phase_4
Started Feb 2003
Shorter than P25 for phase_4
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
February 1, 2003
CompletedStudy Completion
Last participant's last visit for all outcomes
January 1, 2004
CompletedFirst Submitted
Initial submission to the registry
March 10, 2008
CompletedFirst Posted
Study publicly available on registry
March 17, 2008
CompletedJanuary 11, 2011
January 1, 2011
March 10, 2008
January 10, 2011
Conditions
Outcome Measures
Primary Outcomes (1)
Endpoints will be the AUC and Cmax for desloratadine, 3-OH desloratadine, and fexofenadine.
Serial, Trough, and Terminal blood samples over 8 days.
Secondary Outcomes (1)
Endpoints will include Tmax, elimination half-life (t1/2), and accumulation index, as the data permit.
Serial, Trough, and Terminal blood samples over 8 days.
Interventions
Eligibility Criteria
You may qualify if:
- Healthy, adult, non-smoking males and females between 18 and 55 years of age, inclusive; Whites of European or North American heritage and Blacks of African or Caribbean heritage.
You may not qualify if:
- Any past or present clinically relevant abnormality, medical condition, or circumstance making the subject unsuitable for participation in the study.
- Historical, clinical, or laboratory evidence of liver disease including but not limited to transaminase activity concentrations \>2.5 times the upper limit of the reference range.
- Active peptic ulcer disease or a history of gastrointestinal surgery within the last 6 months.
- History of cholecystectomy.
- History of malignancy within the last 5 years (except basal cell carcinoma, which must be in remission for at least 6 months prior to the study.
- Pregnant or lactating females or females of childbearing potential who are unwilling to use reliable, medically accepted methods of contraception. If subjects who are not sexually active with members of the opposite sex become so during the study, these subjects must agree to use a medically accepted method of contraception.
- History of hypersensitivity or intolerability to either desloratadine or fexofenadine or other antihistamines.
- Treatment with other antihistamines in the last month before study entry.
- Use of any prescription or over-the-counter medications or dietary/herbal supplements (with the exception of oral or implanted contraceptives) within 1 week or 5 half-lives, whichever is longer, of the study.
- History of alcoholism or drug abuse within 12 months of the study.
- Ingestion of alcohol within 1 week of the first dose of study medication.
- Ingestion of grapefruit or grapefruit juice within 1 week of the study and a willingness to abstain from the consumption of grapefruit or grapefruit juice for the duration of the study.
- Participation in any other clinical trial or use of an investigational product within 30 days of entry into the study.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Sanofilead
Study Sites (1)
Sanofi-Aventis
Bridgewater, New Jersey, 08807, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY DIRECTOR
Phyllis Diener
Sanofi
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- INDUSTRY
Study Record Dates
First Submitted
March 10, 2008
First Posted
March 17, 2008
Study Start
February 1, 2003
Study Completion
January 1, 2004
Last Updated
January 11, 2011
Record last verified: 2011-01