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CompletedNCT00000914Updated Oct 29, 2021

A Study of the Effectiveness of Different Anti-HIV Treatments in HIV-Positive Individuals Who Have Been on a Protease Inhibitor-Containing Drug Regimen for at Least 16 Weeks

An interventional study of Indinavir sulfate and Ritonavir in HIV Infections, sponsored by National Institute of Allergy and Infectious Diseases (NIAID). Completed at 15 sites in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2021-10-29.

Sponsored by National Institute of Allergy and Infectious Diseases (NIAID) · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
800
Ages
18 Years and older
Sex
All
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Study summary

The purpose of this study is to compare different treatments for HIV infection to see which works best to lower HIV levels and to raise the number of CD4 cells (cells of the immune system that fight infection), in HIV-positive individuals who have been on a protease inhibitor-containing drug regimen for at least 16 weeks.

Researchers have found that combination anti-HIV therapy (multiple drugs given together) can help prevent AIDS-related illnesses and help people with AIDS live longer. In this study, the anti-HIV drug efavirenz (EFV) will be tested with 1 or 2 other protease inhibitors (PIs) to see which combination works best to treat HIV infection. EFV has been shown to limit the amount of HIV virus produced by infected cells.

Read the detailed description

Current recommendations for the initial treatment of HIV infection have centered on the reduction of plasma HIV levels. It has been shown that a combination of 2 nucleoside reverse transcriptase inhibitors (NRTIs) and a PI is the most effective barriers to disease progression. This study attempts to demonstrate these data.

Two options are available for patients whose initial PI-containing regimen has failed to suppress viral replication.

Option 1 consists of immediate versus deferred use of a nonnucleoside reverse transcriptase inhibitor (NNRTI). Patients who choose Option 1 are randomized to 1 of 2 groups:

  1. Ritonavir (RTV) plus soft gelatin capsule saquinavir (SQV-SGC) plus efavirenz (EFV).
  2. RTV plus SQV-SGC.

Option 2 consists of treatment with a single PI versus double PI. Patients who choose Option 2 are randomized to 1 of 2 groups:

  1. Nelfinavir (NFV) plus EFV.
  2. RTV plus SQV-SGC plus EFV.

Patients failing NFV in Option 2 are randomized to one of two groups:

  1. Indinavir (IDV) plus EFV.
  2. RTV plus SQV-SGC plus EFV. Patients remain on study treatment regimens for 8 weeks. Follow-up visits, including history and physical evaluations, take place at specified intervals during the next 12 months.
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Conditions studied

  • HIV Infections

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Keywords

  • Drug Therapy, Combination
  • HIV Protease Inhibitors
  • Ritonavir
  • Indinavir
  • Saquinavir
  • Reverse Transcriptase Inhibitors
  • Viral Load
  • Nelfinavir
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In context

HIV Infections

4,259 studies on the registry are indexed under HIV Infections; 241 are open to participants now.

This study's enrollment of 800 is above the median of 83 across 3,252 interventional studies indexed under HIV Infections.

Browse HIV Infections studies →

Lead sponsor

National Institute of Allergy and Infectious Diseases (NIAID) is the lead sponsor of 2,401 studies on the registry; 179 are open to participants now.

Of its 396 completed or terminated interventional studies of FDA-regulated products, 294 (74%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

You may be eligible for this study if you:

  • Are HIV-positive.
  • Have an HIV RNA count of at least 400 copies/ml.
  • Are at least 13 years old (need consent if under 18).
  • Have been on antiretroviral treatment (including at least 2 NRTIs) for at least 16 weeks prior to study entry.
  • Agree to practice abstinence or to use effective methods of birth control, including a barrier method, during the study.

Exclusion criteria

Exclusion Criteria

You will not be eligible for this study if you:

  • Are pregnant or breast-feeding.
  • Have active opportunistic (HIV-associated) infections.
  • Have taken nelfinavir (NFV) for more than 2 weeks after failing indinavir/ritonavir (IDV/RTV) treatment or have taken IDV/RTV for more than 2 weeks after failing NFV treatment.
  • Have used any protease inhibitor other than NFV or IDV/RTV for more than 2 weeks.
  • Have used any non-nucleoside reverse transcriptase inhibitor (NNRTI) for more than 1 week.
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Study design

Phase
Not applicable
Primary purpose
Treatment
Masking
None (open label)
Enrollment
800 participants

Interventions

  • DrugIndinavir sulfate
  • DrugRitonavir
  • DrugNelfinavir mesylate
  • DrugEfavirenz
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Study locations

15 sites
  • Community Consortium / UCSF
    San Francisco, California 94110, United States
  • Denver CPCRA / Denver Public Hlth
    Denver, Colorado 802044507, United States
  • Washington Reg AIDS Prog / Dept of Infect Dis
    Washington, District of Columbia 20422, United States
  • AIDS Research Consortium of Atlanta
    Atlanta, Georgia 303081962, United States
  • AIDS Research Alliance - Chicago
    Chicago, Illinois 60657, United States
  • Louisiana Comm AIDS Rsch Prog / Tulane Univ Med
    New Orleans, Louisiana 70112, United States
  • Wayne State Univ - WSU/DMC / Univ Hlth Ctr
    Detroit, Michigan 48201, United States
  • Henry Ford Hosp
    Detroit, Michigan 48202, United States
  • Southern New Jersey AIDS Cln Trials / Dept of Med
    Camden, New Jersey 08103, United States
  • North Jersey Community Research Initiative
    Newark, New Jersey 071032842, United States
  • Partners in Research / New Mexico
    Albuquerque, New Mexico 87131, United States
  • Harlem AIDS Treatment Grp / Harlem Hosp Ctr
    New York, New York 10037, United States
  • The Research and Education Group
    Portland, Oregon 97210, United States
  • Philadelphia FIGHT
    Philadelphia, Pennsylvania 19107, United States
  • Richmond AIDS Consortium / Div of Infect Diseases
    Richmond, Virginia 232980049, United States
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References and documents

Publications

  • Mannheimer S, Friedland G, Matts J, Child C, Chesney M. Antiretroviral adherence correlates with quality of life. 8th Conf Retro and Opportun Infect. 2001 Feb 4-8 (abstract no 485)
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 29, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT00000914
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
Responsible party
Sponsor
First posted
Aug 31, 2001
Completion
Jun 2000
Last update
Oct 29, 2021

Study contacts

Jay R. Kostman
study chair
Lawrence R. Crane
study chair
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2021. You cannot join it, but the record below documents what was studied.

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