Safety and Efficacy of Zidovudine for Asymptomatic HIV-Infected Individuals

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

To determine if treatment with zidovudine (AZT) will delay or prevent the onset of AIDS or AIDS related complex (ARC) in individuals infected with HIV but who do not have symptoms of AIDS or ARC. Also, to compare the dose of AZT found to be useful in AIDS and severe ARC with a lower dose to see if side effects can be reduced.

Results from several studies show that a high percentage of people infected with HIV will eventually develop AIDS or ARC unless an effective treatment is found. Because AZT is known to prolong survival in patients with AIDS or severe ARC and has acceptable toxicity in advanced disease, it is reasonable to try it in less advanced cases.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Results from several studies show that a high percentage of people infected with HIV will eventually develop AIDS or ARC unless an effective treatment is found. Because AZT is known to prolong survival in patients with AIDS or severe ARC and has acceptable toxicity in advanced disease, it is reasonable to try it in less advanced cases.

Patients entered in the study are randomly assigned to one of two doses of AZT or to placebo (inactive medication). Patients take 3 capsules 5 times a day (every 4 hours from 8 am until 12 pm).

The capsules contain either AZT or placebo and are identical in appearance so that neither patient nor physician knows which treatment the patient is receiving. The higher dose corresponds to the dose found to be useful in patients with AIDS or severe ARC. Patients visit the clinic every 2 weeks for the first 16 weeks, then once a month after that for evaluation. Treatment will continue until the results from the study have been analyzed, which could be as long as 3 years. If side effects occur, the dose of study medication will be decreased or temporarily stopped. If the side effects are severe, then study medication will be stopped permanently.

AMENDED: Effective with Version 4 (900226), dosing for ALL patients on Phase 2 study drug, regardless of CD4+ substudy, will proceed as open-label AZT. Original treatment assignments employed in the > 500 cells/mm3 substudy during the period from August 16, 1989 through the release of this new version. Also, toxicity management and dose modification of AZT for patients receiving Phase 2 study drug have been changed.

Study Type

Interventional

Enrollment

3200

Phase

  • Phase 3

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
      • Los Angeles, California, United States, 90095
        • UCLA CARE Ctr
      • Los Angeles, California, United States, 90033
        • Los Angeles County - USC Med Ctr
      • Oakland, California, United States, 94609
        • Summitt Med Ctr / San Francisco Gen Hosp
      • Palo Alto, California, United States, 94304
        • Palo Alto Veterans Adm Med Ctr / Stanford Univ
      • San Diego, California, United States, 921036325
        • Univ of California / San Diego Treatment Ctr
      • San Francisco, California, United States, 941102859
        • San Francisco AIDS Clinic / San Francisco Gen Hosp
      • San Francisco, California, United States, 94115
        • Stanford at Kaiser / Kaiser Permanente Med Ctr
      • San Francisco, California, United States, 94118
        • Children's Hosp of San Francisco
      • San Francisco, California, United States, 94143
        • San Francisco AIDS Clinic
      • Stanford, California, United States, 94305
        • Stanford Univ School of Medicine
      • Torrance, California, United States, 90502
        • Harbor UCLA Med Ctr
    • District of Columbia
      • Washington, District of Columbia, United States, 20037
        • George Washington Univ Med Ctr
    • Illinois
      • Chicago, Illinois, United States, 60611
        • Northwestern Univ Med School
      • Chicago, Illinois, United States, 60612
        • Rush Presbyterian - Saint Luke's Med Ctr
    • Maryland
      • Baltimore, Maryland, United States, 21287
        • Johns Hopkins Hosp
    • Massachusetts
      • Boston, Massachusetts, United States, 02114
        • Harvard (Massachusetts Gen Hosp)
      • Boston, Massachusetts, United States, 02215
        • Beth Israel Deaconess - West Campus
      • Boston, Massachusetts, United States, 02215
        • Beth Israel Deaconess Med Ctr
    • Minnesota
      • Minneapolis, Minnesota, United States, 55455
        • Univ of Minnesota
    • Missouri
      • Saint Louis, Missouri, United States, 63112
        • St Louis Regional Hosp / St Louis Regional Med Ctr
    • New York
      • Bronx, New York, United States, 10461
        • Bronx Municipal Hosp Ctr/Jacobi Med Ctr
      • Bronx, New York, United States, 10465
        • Jack Weiler Hosp / Bronx Municipal Hosp
      • Bronx, New York, United States, 10467
        • Montefiore Med Ctr / Bronx Municipal Hosp
      • Bronx, New York, United States, 10468
        • Bronx Veterans Administration / Mount Sinai Hosp
      • Buffalo, New York, United States, 14215
        • SUNY / Erie County Med Ctr at Buffalo
      • Elmhurst, New York, United States, 11373
        • City Hosp Ctr at Elmhurst / Mount Sinai Hosp
      • New York, New York, United States, 10021
        • Cornell Univ Med Ctr
      • New York, New York, United States, 10003
        • Beth Israel Med Ctr / Peter Krueger Clinic
      • New York, New York, United States, 10016
        • Bellevue Hosp / New York Univ Med Ctr
      • New York, New York, United States, 10021
        • Mem Sloan - Kettering Cancer Ctr
      • New York, New York, United States, 10025
        • Saint Luke's - Roosevelt Hosp Ctr
      • New York, New York, United States, 10029
        • Mount Sinai Med Ctr
      • Rochester, New York, United States, 14642
        • Univ of Rochester Medical Center
      • Stony Brook, New York, United States, 117948153
        • SUNY - Stony Brook
      • Syracuse, New York, United States, 13210
        • SUNY / State Univ of New York
    • North Carolina
      • Durham, North Carolina, United States, 27710
        • Duke Univ Med Ctr
    • Ohio
      • Cincinnati, Ohio, United States, 452670405
        • Holmes Hosp / Univ of Cincinnati Med Ctr
      • Cleveland, Ohio, United States, 44106
        • Univ Hosp of Cleveland / Case Western Reserve Univ
      • Columbus, Ohio, United States, 432101228
        • Ohio State Univ Hosp Clinic
      • Columbus, Ohio, United States, 432052696
        • Columbus Children's Hosp
    • Pennsylvania
      • Pittsburgh, Pennsylvania, United States
        • Univ of Pittsburgh Med School
    • South Carolina
      • West Columbia, South Carolina, United States, 29169
        • Julio Arroyo
    • Washington
      • Seattle, Washington, United States, 98105
        • Univ of Washington

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

Patients must:

  • Be HIV seropositive and asymptomatic.
  • Have normal neurologic exam as defined by the Micro Neuro-AIDS assessment.

Concurrent Medication

  • Required: Prophylaxis for Pneumocystis carinii pneumonia (PCP). Aerosolized pentamidine is preferred but if not possible, Trimethoprim / sulfamethoxazole 1 DS tablet per day or Dapsone 50 - 100 mg per day is allowed.

Exclusion Criteria

  • Active drug or alcohol abuse sufficient to prevent adequate compliance with study therapy in the investigator's opinion.

Co-existing Condition:

Patients with the following diseases or conditions are excluded:

  • Hemophilia.
  • Oral candida infection documented by morphology or by response to antifungal therapy within 2 years of study entry.
  • Oral hairy leukoplakia at any time prior to study entry.
  • Herpes zoster infection (including single dermatome infection) within 2 years of study entry.
  • Active diarrhea as defined by 3 or more liquid stools per day.
  • Temperature > 37.8 degrees C.
  • Grade 1 impairment on two or more items (mild AIDS dementia complex) in the ACTG Micro Neuro-AIDS Assessment.
  • Prior history of malignancy other than cutaneous basal cell carcinomas or cervical carcinoma in situ.

Patients with the following are excluded from entry:

  • AIDS or AIDS-related complex defining symptoms.
  • Significant, chronic underlying medical illnesses which would impair continuous participation in this 3-year clinical trial.
  • Hemophilia.

Prior Medication: Excluded:

  • Chemoprophylaxis for Pneumocystis carinii pneumonia (PCP).
  • Other experimental medications.
  • Excluded within 60 days of study entry:
  • Antiretroviral drugs or immunomodulators (biologic response modifiers).
  • Excluded within 120 days of study entry:
  • Systemic corticosteroids.

Prior Treatment: Excluded within 3 months of study entry:

  • Blood transfusion.

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: Double

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: Volberding P

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

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)

February 1, 1995

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)

November 3, 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 019
  • 10995 (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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