Safety and Efficacy of Zidovudine for Asymptomatic HIV-Infected Individuals - Full Text View

Sponsor:	National Institute of Allergy and Infectious Diseases (NIAID)
Information provided by:	National Institute of Allergy and Infectious Diseases (NIAID)
ClinicalTrials.gov Identifier:	NCT00000736

Purpose

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.

Condition	Intervention	Phase
HIV Infections	Drug: Zidovudine	Phase III

Study Type:	Interventional
Study Design:	Treatment, Double-Blind
Official Title:	Safety and Efficacy of Zidovudine for Asymptomatic HIV-Infected Individuals

Resource links provided by NLM:

MedlinePlus related topics: AIDS

Drug Information available for: Zidovudine

U.S. FDA Resources

Further study details as provided by National Institute of Allergy and Infectious Diseases (NIAID):

Estimated Enrollment:

3200

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.

Eligibility

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

Criteria

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.

Contacts and Locations

Please refer to this study by its ClinicalTrials.gov identifier: NCT00000736

Show 43 Study Locations

Sponsors and Collaborators

National Institute of Allergy and Infectious Diseases (NIAID)

Investigators

Study Chair:

Volberding P

More Information

Additional Information:

Click here for more information about Zidovudine This link exits the ClinicalTrials.gov site

Publications:

Volberding PA, Lagakos SW, Grimes JM, Stein DS, Balfour HH Jr, Reichman RC, Bartlett JA, Hirsch MS, Phair JP, Mitsuyasu RT, et al. The duration of zidovudine benefit in persons with asymptomatic HIV infection. Prolonged evaluation of protocol 019 of the AIDS Clinical Trials Group. JAMA. 1994 Aug 10;272(6):437-42.

Choi S, Lagakos SW, Schooley RT, Volberding PA. CD4+ lymphocytes are an incomplete surrogate marker for clinical progression in persons with asymptomatic HIV infection taking zidovudine. Ann Intern Med. 1993 May 1;118(9):674-80.

Volberding PA, Lagakos SW, Grimes JM, Stein DS, Rooney J, Meng TC, Fischl MA, Collier AC, Phair JP, Hirsch MS, et al. A comparison of immediate with deferred zidovudine therapy for asymptomatic HIV-infected adults with CD4 cell counts of 500 or more per cubic millimeter. AIDS Clinical Trials Group. N Engl J Med. 1995 Aug 17;333(7):401-7.

Vella S, Giuliano M, Dally LG, Agresti MG, Tomino C, Floridia M, Chiesi A, Fragola V, Moroni M, Piazza M, et al. Long-term follow-up of zidovudine therapy in asymptomatic HIV infection: results of a multicenter cohort study. The Italian Zidovudine Evaluation Group. J Acquir Immune Defic Syndr. 1994 Jan;7(1):31-8.

Volberding PA, Lagakos SW, Koch MA, Pettinelli C, Myers MW, Booth DK, Balfour HH Jr, Reichman RC, Bartlett JA, Hirsch MS, et al. Zidovudine in asymptomatic human immunodeficiency virus infection. A controlled trial in persons with fewer than 500 CD4-positive cells per cubic millimeter. The AIDS Clinical Trials Group of the National Institute of Allergy and Infectious Diseases. N Engl J Med. 1990 Apr 5;322(14):941-9.

Volberding P. The value of the CD4+ count of 500 cells/microliters. Drugs. 1995;49 Suppl 1:4-8; discussion 38-40. Review.

Lenderking WR, Gelber RD, Cotton DJ, Cole BF, Goldhirsch A, Volberding PA, Testa MA. Evaluation of the quality of life associated with zidovudine treatment in asymptomatic human immunodeficiency virus infection. The AIDS Clinical Trials Group. N Engl J Med. 1994 Mar 17;330(11):738-43.

Wu AW, Rubin HR, Mathews WC, Ware JE Jr, Brysk LT, Hardy WD, Bozzette SA, Spector SA, Richman DD. A health status questionnaire using 30 items from the Medical Outcomes Study. Preliminary validation in persons with early HIV infection. Med Care. 1991 Aug;29(8):786-98.

Jacobson MA, Gundacker H, Hughes M, Fischl M, Volberding P. Zidovudine side effects as reported by black, Hispanic, and white/non-Hispanic patients with early HIV disease: combined analysis of two multicenter placebo-controlled trials. J Acquir Immune Defic Syndr Hum Retrovirol. 1996 Jan 1;11(1):45-52.

Study ID Numbers:	ACTG 019
Study First Received:	November 2, 1999
Last Updated:	August 22, 2008
ClinicalTrials.gov Identifier:	NCT00000736 History of Changes
Health Authority:	United States: Federal Government

Keywords provided by National Institute of Allergy and Infectious Diseases (NIAID):

Acquired Immunodeficiency Syndrome
AIDS-Related Complex
Zidovudine

Additional relevant MeSH terms:

Antimetabolites
Anti-Infective Agents
RNA Virus Infections
Sexually Transmitted Diseases, Viral
Anti-HIV Agents
Slow Virus Diseases
Molecular Mechanisms of Pharmacological Action
Immune System Diseases
Acquired Immunodeficiency Syndrome
Zidovudine
Enzyme Inhibitors
Infection

Antiviral Agents
Pharmacologic Actions
Immunologic Deficiency Syndromes
Reverse Transcriptase Inhibitors
Virus Diseases
Anti-Retroviral Agents
HIV Infections
Therapeutic Uses
Sexually Transmitted Diseases
Lentivirus Infections
Retroviridae Infections
Nucleic Acid Synthesis Inhibitors

ClinicalTrials.gov processed this record on November 27, 2009