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A Comparison of Adherence Rates to Ritonavir and Its Accompanying Protease Inhibitor

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ClinicalTrials.gov Identifier: NCT00432783
Recruitment Status : Unknown
Verified November 2009 by Montefiore Medical Center.
Recruitment status was:  Active, not recruiting
First Posted : February 8, 2007
Last Update Posted : November 5, 2009
Information provided by:
Montefiore Medical Center

Brief Summary:
Pharmacologic boosting of protease inhibitors with ritonavir has become standard practice in antiretroviral therapy. Patients are instructed to take ritonavir at the same time as its accompanying protease inhibitor. However, ritonavir is unpopular with many patients because of its large size and because of the recommended need for refrigeration. This study will test the hypothesis that adherence to ritonavir is inferior to adherence to its accompanying protease inhibitor in patients receiving such therapy.

Condition or disease
HIV Infections

Detailed Description:
The study staff will employ MEMS caps to prospectively measure adherence to ritonavir and its accompanying protease inhibitor over 24 weeks of follow-up. Paired sample t-tests will be employed to compare adherence to the two agents, and secondary analyses will be conducted to evaluate the chronologic concordance of ritonavir and accompanying protease inhibitor dosing.

Study Type : Observational
Estimated Enrollment : 45 participants
Observational Model: Cohort
Time Perspective: Prospective
Official Title: A Comparison of Adherence Rates to Ritonavir (Soft-gel Capsules) and Its Accompanying Protease Inhibitor (PI) in Patients Receiving Ritonavir Boosted PI Regimens
Study Start Date : June 2006

Resource links provided by the National Library of Medicine

MedlinePlus related topics: HIV/AIDS
Drug Information available for: Ritonavir
U.S. FDA Resources

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Subjects will be recruited from the Montefiore Medical Center Infectious Diseases Clinic who meet eligibility criteria described below.

Inclusion Criteria:

  • HIV infection, age>18 years, receiving therapy with ritonavir-boosted atazanavir or fosamprenavir, willingness to use MEMS caps, willingness to provide informed consent

Exclusion Criteria:

  • Treatment with any medication that is contraindicated in combination with ritonavir or its accompanying protease inhibitor

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00432783

United States, New York
Montefiore Medical Center
Bronx, New York, United States, 10467
Sponsors and Collaborators
Montefiore Medical Center
Principal Investigator: Jonathan Shuter, MD Montefiore Medical Center

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: Roxann Stubbs/Clinical Science Manager, Abbott Laboratories
ClinicalTrials.gov Identifier: NCT00432783     History of Changes
Other Study ID Numbers: 06-01-023E
First Posted: February 8, 2007    Key Record Dates
Last Update Posted: November 5, 2009
Last Verified: November 2009

Keywords provided by Montefiore Medical Center:
HIV, antiretroviral therapy, adherence, ritonavir

Additional relevant MeSH terms:
HIV Infections
Lentivirus Infections
Retroviridae Infections
RNA Virus Infections
Virus Diseases
Sexually Transmitted Diseases, Viral
Sexually Transmitted Diseases
Immunologic Deficiency Syndromes
Immune System Diseases
HIV Protease Inhibitors
Protease Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Anti-HIV Agents
Anti-Retroviral Agents
Antiviral Agents
Anti-Infective Agents
Cytochrome P-450 CYP3A Inhibitors
Cytochrome P-450 Enzyme Inhibitors