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Capravirine (AG1549) in Combination With Viracept and Two NRTIs in HIV Infected Patients Who Failed an Initial NNRTI Containing Regimen

This study has been completed.
Sponsor:
Information provided by:
Pfizer
ClinicalTrials.gov Identifier:
NCT00051844
First received: January 16, 2003
Last updated: May 9, 2011
Last verified: May 2011
History of Changes
  Purpose

This is a 48 week study that is intended for HIV Infected persons whose first treatment regimen was with a nonnucleoside reverse transcriptase inhibitor (NNRTI) and who are now failing that regimen. They must be currently on their failing regimen to be eligible.


Condition Intervention Phase
Human Immunodeficiency Virus
 Drug: Capravirine
 Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double-Blind
Primary Purpose: Treatment
Official Title: A Double Blind- Randomized, Placebo-controlled Study of Two Doses of Capravirine (AG1549) in Combination With Viracept and Two Nucleoside Reverse Transcriptase Inhibitors in HIV Infected Patients Who Failed an Initial Nonnucleoside Reverse Transcriptase Inhibitor Containing Regimen

Resource links provided by NLM:

MedlinePlus related topics: HIV/AIDS
U.S. FDA Resources

Further study details as provided by Pfizer:

Primary Outcome Measures:
  • The primary objective was to determine whether the addition of capravirine to a regimen of VIRACEPT and 2 new nucleoside reverse transcriptase inhibitors would provide a higher virologic response rate over 48 weeks
  • when compared to a 3-drug regimen without capravirine in patients who had experienced virologic failure while on a nonnucleoside reverse transcriptase inhibitor regimen.

Secondary Outcome Measures:
  • The safety and tolerability of 2 doses of capravirine.
  • The difference between 2 doses of capravirine in terms of tolerability, efficacy, and pharmacokinetics
  • The relationship of HIV resistance (genotype and phenotype) to virologic response.
  • The immunologic response as determined by CD4 and CD8 absolute lymphocyte counts
  • The population pharmacokinetics of capravirine and VIRACEPT
  • The pharmacokinetics of potential drug-drug interactions.

Enrollment: 179
Study Start Date: August 2002
Study Completion Date: November 2004
  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Male or female at least 18 years old
  • HIV RNA level >1000 copies/mL at screening
  • CD4 >50 cells/uL at screening
  • Patient is currently taking a regimen that includes an NNRTI plus 2 NRTIs for at least 28 days and is currently failing this regimen
  • Patient has adequate hematology tests (absolute neutrophil count >1000/uL, Platelets>75,000uL, hemoglobin 9g/L)
  • Patient has adequate renal function (serum creatinine of <1.5 upper limit of normal)
  • Patient has adequate liver function (AST, ALT, and bilirubin < 2.5 upper limit of normal)

Exclusion Criteria:

  • Previous use of protease inhibitors (except if patient has short duration of PI and was switched for tolerability reasons when viral load was <50 copies) This exception does not include Viracept
  • Women who are pregnant or lactating
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00051844

  Show 52 Study Locations
Sponsors and Collaborators
Pfizer
  More Information

No publications provided

Responsible Party: Director, Clinical Trial Disclosure Group, Pfizer, Inc.
ClinicalTrials.gov Identifier: NCT00051844     History of Changes
Other Study ID Numbers: A4311002
Study First Received: January 16, 2003
Last Updated: May 9, 2011
Health Authority: United States: Food and Drug Administration

Keywords provided by Pfizer:
HIV
NNRTI Failure
HIV Infections

Additional relevant MeSH terms:
Acquired Immunodeficiency Syndrome
HIV Infections
Immunologic Deficiency Syndromes
Lentivirus Infections
Retroviridae Infections
RNA Virus Infections
Virus Diseases
Sexually Transmitted Diseases, Viral
Sexually Transmitted Diseases
Slow Virus Diseases
Immune System Diseases
Reverse Transcriptase Inhibitors
 Nelfinavir
Nucleic Acid Synthesis Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Pharmacologic Actions
Anti-Retroviral Agents
Antiviral Agents
Anti-Infective Agents
Therapeutic Uses
HIV Protease Inhibitors
Protease Inhibitors
Anti-HIV Agents

ClinicalTrials.gov processed this record on May 19, 2013