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A Study of Amprenavir in HIV-Infected Patients

This study has been completed.
Information provided by:
NIH AIDS Clinical Trials Information Service Identifier:
First received: November 2, 1999
Last updated: June 23, 2005
Last verified: April 1999

The purpose of this study is to see if it is safe to give amprenavir (APV) to HIV-infected patients. This study also examines the effect APV has on the level of HIV in the blood.

Earlier studies have shown that APV is effective in slowing the growth of HIV in the body. Patients who have failed previous anti-HIV treatment or who are unable to take other protease inhibitors (PIs) may benefit from the availability of a new PI such as APV.

Condition Intervention
HIV Infections
Drug: Amprenavir

Study Type: Interventional
Study Design: Primary Purpose: Treatment
Official Title: Amprenavir (141W94) Open Label Protocol for Subjects With HIV-1 Infection Who Have Experienced Treatment Failure or Are Intolerant to Previous Protease Inhibitor Therapy

Resource links provided by NLM:

Further study details as provided by NIH AIDS Clinical Trials Information Service:

Detailed Description:

Earlier Phase II/III clinical trials indicate APV is effective in retarding HIV progression in the body. Despite these data, however, the drug has yet to receive regulatory approval. At the same time, there is an urgent need to grant pre-approval access to specific groups of patients eager to benefit from the anti-HIV potential inherent in APV. This study examines the relative effects APV has in patients with prior treatment failure or intolerance to previous protease inhibitor therapy.

Patients are seen in the clinic at pre-entry, baseline (Day 1), and every 4 weeks thereafter. Data on current antiretroviral treatment, HIV-1 associated conditions and adverse events are collected at every scheduled visit. Laboratory values (i.e., hematology, serum chemistry, plasma HIV-1 viral load and CD4+ cell count) are collected and assessed at pre-entry and Weeks 12, 24, 36, and 48. Optimal therapeutic effectiveness dictates the combined use of 2 or more antiretroviral agents in patients failing current antiretroviral therapy. APV, therefore, must be initiated as a component of a treatment regimen that also includes at least one other antiretroviral drug that the patient has not previously received.


Ages Eligible for Study:   4 Years and older   (Child, Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria

Patients must have:

  • Documented HIV-1 infection.
  • Evidence of failure or intolerance (have experienced a treatment-limiting toxicity) to standard protease inhibitor therapy and, in the judgment of the physician, be unable to construct a viable treatment regimen without APV.
  • Consent of parent or guardian if less than 18 years old.

Exclusion Criteria

Co-existing Condition:

Patients with the following symptoms or conditions are excluded:

  • Malabsorption syndrome or other gastrointestinal dysfunction which might interfere with drug absorption or render the patient unable to take oral medication.
  • Serious medical conditions such as diabetes, congestive heart failure, cardiomyopathy, or other cardiac dysfunction, which, in the opinion of the investigator, would compromise the safety of the patient.
  • Hepatic failure.
  • Renal failure requiring dialysis.

Patients with the following prior conditions are excluded:

History of clinically relevant pancreatitis or hepatitis within the last 6 months.

Prior Medication:


  • Previous treatment with APV.
  • Patients currently participating in, or who would qualify for or have access to, an enrolling study of APV (ACTG 398 and ACTG 400).

Risk Behavior:


Patients with current alcohol or illicit drug use which, in the investigator's opinion, may interfere with the patient's ability to comply with the requirements of the study.


Currently taking at least one nucleoside analogue or protease inhibitor, in addition to amprenavir.


  • Received prior treatment with one or more protease inhibitors.
  • Patient must be naive to at least one or more nucleoside analogue, non-nucleoside analogue, or protease inhibitor drugs.
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT00002405

United States, North Carolina
Glaxo Wellcome Inc
Research Triangle Park, North Carolina, United States, 277093398
Sponsors and Collaborators
Glaxo Wellcome
  More Information Identifier: NCT00002405     History of Changes
Other Study ID Numbers: 264G
Study First Received: November 2, 1999
Last Updated: June 23, 2005

Keywords provided by NIH AIDS Clinical Trials Information Service:
Drug Therapy, Combination
HIV Protease Inhibitors
VX 478
Anti-HIV Agents

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
Protease Inhibitors
HIV Protease Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action
Anti-HIV Agents
Anti-Retroviral Agents
Antiviral Agents
Anti-Infective Agents
Antibiotics, Antitubercular
Antitubercular Agents
Anti-Bacterial Agents processed this record on April 28, 2017