Drug Interaction Study With Proton Pump Inhibitor

The purpose of this clinical research study is to assess the effect of omeprazole at 20 mg on the pharmacokinetics of atazanavir administered as atazanavir with ritonavir relative to atazanavir or atazanavir/ritonavir in the absence of omeprazole in healthy subjects...

Date First Received: July 25, 2006

Last Updated: June 27, 2008

Verified by: Bristol-Myers Squibb, June 2008

Clinical Trial Phase: Phase 1 | Start Date: June 2006

Overall Status: Completed

Estimated Enrollment: 56

Brief Summary

Official Title: “Randomized, Open-Label, Multiple-Dose Study to Evaluate the Effect of Omeprazole 20 mg on the Pharmacokinetics of Atazanavir Administered With Ritonavir in Healthy Subjects”

Condition Keyword(s):

The purpose of this clinical research study is to assess the effect of omeprazole at 20 mg on the pharmacokinetics of atazanavir administered as atazanavir with ritonavir relative to atazanavir or atazanavir/ritonavir in the absence of omeprazole in healthy subjects.

Study Type: Interventional

Study Design: Other, Randomized, Open Label, Active Control, Parallel Assignment, Pharmacokinetics Study

Intervention(s) in this Clinical Trial

  • Drug: Atazanavir
    • Capsules, Oral, 400 mg, once daily, 6 days.
  • Drug: Atazanavir/Ritonavir
    • Capsules/capsules, Oral, 300/100 mg, once daily, 10 days.
  • Drug: Atazanavir/Ritonavir+Omeprazole
    • Capsules/capsules + Capsules, Oral, 300/100 mg + 20 mg, once daily in PM + once daily in AM, 7 days.
  • Drug: Atazanavir/Ritonavir+Omeprazole
    • Capsules/capsules + Capsules, Oral, 400/100 mg + 20 mg, once daily in PM + once daily in AM, 7 days.
  • Drug: Atazanavir
    • Capsules, Oral, 400 mg, once daily, 6 days.
  • Drug: Atazanavir/Ritonavir
    • Capsules/capsules, Oral, 300/100 mg, once daily, 10 days.
  • Drug: Atazanavir/Ritonavir+Omeprazole
    • Capsules/capsules + Capsules, Oral, 400/100 mg + 20 mg, once daily in AM + once daily in AM, 7 days.
  • Drug: Atazanavir/Ritonavir+Omeprazole
    • Capsules/capsules + Capsules, Oral, 400/100 mg + 20 mg, once daily in AM + once daily in PM, 7 days.

Arms, Groups and Cohorts in this Clinical Trial

  • Active Comparator: A1
  • Active Comparator: A2
  • Experimental: A3 I
  • Experimental: A3 II
  • Active Comparator: B1
  • Active Comparator: B2
  • Experimental: B3 I
  • Experimental: B3 II

Outcome Measures for this Clinical Trial

Primary Measures

  • Effect of omeprazole 20 mg on PK of atazanavir (with ritonavir), coadministered or temporally separated, in healthy subjects.

Secondary Measures

  • PK of ritonavir and omeprazole. Safety and tolerability of atazanavir +/- ritonavir, +/- omeprazole.

Criteria for Participation in this Clinical Trial

Inclusion Criteria:

  • Healthy male and female subjects between the ages of 18 to 50 years old with BMI 18 to 32 kg/m2

Gender Eligibility for this Clinical Trial: Both

Minimum Age for this Clinical Trial: 18 Years

Maximum Age for this Clinical Trial: 50 Years

Are Healthy Volunteers Accepted for this Clinical Trial?: Accepts Healthy Volunteers

Clinical Trial Sponsor Information

Lead Sponsor: Bristol-Myers Squibb

Overall Clinical Trial Officials and Contacts

Bristol-Myers Squibb Study Director Bristol-Myers Squibb  

Additional Information

Information obtained from ClinicalTrials.gov on November 19, 2008

Link to the current ClinicalTrials.gov record. http://clinicaltrials.gov/show/NCT00357240

Study ID Number: AI424-288

ClinicalTrials.gov Identifier: NCT00357240

Health Authority: United States: Food and Drug Administration

BMS Clinical Trials Disclosure

For FDA Safety Alerts and Recalls refer to the following link www.fda.gov/MEDWATCH/safety.htm

Clinical Trials Authorship and Review

Clinical Trials content is provided directly by the U.S. National Institutes of Health via ClinicalTrials.gov and is not reviewed separately by ClinicalTrialsFeeds.org. Every page of specific clinical trials information contains a unique identifier which can be used to find further details directly from the National Institutes of Health.