Viewing Study NCT00001968



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Last Modification Date: 2024-10-26 @ 9:02 AM
Study NCT ID: NCT00001968
Status: COMPLETED
Last Update Posted: 2008-03-04
First Post: 2000-01-18

Brief Title: Once-Daily Drug Regimen for HIV-Infected Patients
Sponsor: National Institute of Allergy and Infectious Diseases NIAID
Organization: National Institutes of Health Clinical Center CC

Study Overview

Official Title: A Pilot Study of Once-Daily Therapy With Amprenavir Ritonavir Lamivudine and Abacavir in HIV-Infected Antiretroviral-Naive Patients
Status: COMPLETED
Status Verified Date: 1999-12
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: This study will examine the safety of giving antiviral therapy for HIV infection in a once-daily dosing schedule and assess how well patients tolerate this regimen A once a day dosing schedule may be easier for some people to follow than one that requires taking medicine 2 or 3 times a day The ease of treatment is important because not following the prescribed dosing regimen may make therapy less effective or ineffective

HIV-infected patients 18 years and older who have never been treated for their infection may be eligible for this study Candidates will be screened with a history and physical examination including blood tests Participants will take the following medications once a day 1200 mg of amprenavir 8 capsules 300 mg of ritonavir 3 capsules 600 mg of abacavir 2 pills and 300 mg of lamivudine 2 pills Patients will have routine blood tests and be seen by a nurse or doctor or both at follow-up visits at weeks 2 4 8 12 and 16 then every 8 weeks until week 48 and then every 3 months for up to 3 years At week 2 a special blood test will be done over the course of a day to measure blood drug levels For this test blood samples will be drawn 8 times over a 24-hour period A heparin lock a device that allows the needle to remain in the vein will be used to avoid multiple needle sticks
Detailed Description: The development of a once-daily anti-retroviral regimen is a priority because regimen simplicity might enhance regimen adherence and because a once-daily regimen would be useful for directly observed therapy Pharmacokinetic modeling suggests that plasma levels of amprenavir in the presence of ritonavir a potent inhibitor of cytochrome p450 should be high enough to support once-daily dosing Lamivudine is currently being explored in other studies in once-daily dosing Abacavir has not been used once daily but some in vitro studies suggest that such dosing might be appropriate In this uncontrolled open-label study amprenavir 1200 mg daily ritonavir 300 mg daily lamivudine 300 mg daily and abacavir 600 mg daily will be administered to up to 25 HIV-infected anti-retroviral naive patients The objectives are to assess the tolerability and safety of this regimen the plasma concentrations of amprenavir and the anti-viral response Study evaluations include percentage of patients who have discontinued the regimen by weeks 16 and 24 for toxicity intolerance or failure the number of grade 3 and 4 adverse events by weeks 16 and 24 the antiviral response at weeks 16 24 and 48 change from baseline and percentage of patients with viral load less than 50 copies and less than 400 copies per mL and the number percent of patients with trough plasma concentrations of amprenavir above 280 ngmL

Study Oversight

Has Oversight DMC: None
Is a FDA Regulated Drug?: None
Is a FDA Regulated Device?: None
Is an Unapproved Device?: None
Is a PPSD?: None
Is a US Export?: None
Is an FDA AA801 Violation?: None
Secondary IDs
Secondary ID Type Domain Link
00-I-0053 None None None