A Study to Compare the Effectiveness of a Four Drug Anti-HIV Regimen Given Alone or in Combination With GM-CSF or IL-12 to HIV-Positive Patients

October 27, 2021 updated by: National Institute of Allergy and Infectious Diseases (NIAID)

A Randomized Controlled Trial to Compare the Efficacy of a Four Drug Antiretroviral Regimen Alone or in Combination With GM-CSF or IL-12 Administered to HIV-1 Infected Subjects as Measured by the Characteristics of Viral Decay

The purpose of this study is to examine how the level of HIV is reduced in the blood when anti-HIV therapy is initiated. This study will also evaluate whether adding GM-CSF or IL-12 to the anti-HIV drug regimen will increase the rate that HIV is reduced.

The anti-HIV drugs used in this study will include lamivudine (3TC), zidovudine (ZDV), indinavir (IDV), nevirapine (NVP), and stavudine (d4T). All have been used successfully to treat HIV. GM-CSF has been used to treat certain blood disorders; it will be used as an experimental drug in this study. IL-12 (interleukin-12) is a protein found naturally in the body that is thought to boost the immune system. Although GM-CSF and IL-12 have no direct effect against HIV, these drugs may improve the ability of the immune system to fight the virus.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Potent antiretroviral therapies that suppress HIV replication have permitted mathematical modeling of the dynamics of HIV infection and clearance by measurement of the decay of viral load in plasma. When de nova infection is blocked by antiretroviral therapy, the viral load decreases exponentially after a short initial lag time ("shoulder"). This rapid decline is followed by a slower second-phase decay. The intent of this study is to utilize four antiretroviral agents (zidovudine, lamivudine, nevirapine, indinavir) and very frequent measures of viral load to explore the drug-specific kinetics of the "shoulder". The decay of long-lived HIV-infected tissue macrophages is thought to be the major determinant of the slow second phase. Further, the study intends to use immune modulating agents with the potential to increase the turnover of infected macrophages, GM-CSF or IL-12, to accelerate the second phase of viral decay.

Patients are assigned to Group A (16 patients) or to Group B (8 patients). Patients in Group A are randomized to 1 of the following 4 initial treatment arms:

ARM A: Final dose combination (FDC) Zidovudine (ZDV)/Lamivudine (3TC). ARM B: Nevirapine (NVP). ARM C: Indinavir (IDV). ARM D: FDC ZDV/3TC plus NVP plus IDV. The initial regimen is maintained over the first 72 hours and blood for viral dynamic evaluations collected while patients are maintained as inpatients. Then, patients in Arms A, B, and C initiate FDC ZDV/3TC plus NVP plus IDV.

Patients assigned to Group B begin the following 4-drug regimen on Day 0:

ARM E: FDC ZDV/3TC plus NVP plus IDV.

On Day 7, patients in both Groups A and B are randomized to receive one of the following therapies in addition to their 4-drug regimen:

ARM F: GM-CSF daily for 2 weeks, then thrice weekly (MWF). ARM G: IL-12 twice weekly. ARM H: No immune modulation. Patients may be hospitalized to initiate immune modulation or may be treated as outpatients. Immune modulation is discontinued after Week 14. Patients maintain their 4-drug regimen through Week 48. [AS PER AMENDMENT 6/11/99: The study duration has been extended to 96 weeks.] Hepatitis A vaccine (inactivated) is administered on Weeks 16 and 40 [AS PER AMENDMENT 2/13/98: to patients whose baseline hepatitis A serology was negative].

Study Type

Interventional

Enrollment

24

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • California
      • San Diego, California, United States
        • Ucsd, Avrc Crs
    • Colorado
      • Aurora, Colorado, United States, 80262
        • University of Colorado Hospital CRS
    • Indiana
      • Indianapolis, Indiana, United States
        • Indiana Univ. School of Medicine, Infectious Disease Research Clinic

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria

You may be eligible for this study if you:

  • Are HIV-positive.
  • Have a CD4 cell count greater than or equal to 300 cells/ml within 30 days prior to study entry.
  • Have a plasma viral load (level of HIV in the blood) of greater than or equal to 20,000 copies/ml within 30 days of study entry.
  • Are at least 18 years old.
  • Agree to practice abstinence or use effective methods of birth control during the study.

Exclusion Criteria

You will not be eligible for this study if you:

  • Have taken anti-HIV medication for more than 7 days.
  • Have had known seroconversion within 6 months prior to study entry.
  • Have any infection requiring treatment within 30 days prior to study entry.
  • Have had a fever for 7 days in a row during the 30 days before study entry.
  • Have cancer that requires chemotherapy.
  • Are pregnant or breast-feeding.
  • Are taking certain medications.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Masking: None (Open Label)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

National Institute of Allergy and Infectious Diseases (NIAID)

Investigators

  • Study Chair: Rhonda G. Kost
  • Study Chair: David Ho

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Completion (Actual)

October 1, 2000

Study Registration Dates

First Submitted

November 2, 1999

First Submitted That Met QC Criteria

August 30, 2001

First Posted (Estimate)

August 31, 2001

Study Record Updates

Last Update Posted (Actual)

October 29, 2021

Last Update Submitted That Met QC Criteria

October 27, 2021

Last Verified

October 1, 2021

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • ACTG 387
  • 11346 (Registry Identifier: DAIDS ES Registry Number)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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