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The Effectiveness of Three Drug Combinations in HIV-Infected Patients Who Have Taken Zidovudine for More Than 12 Weeks

Phase 2
Completed
Conditions
HIV Infections
Registration Number
NCT00001063
Lead Sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
Brief Summary

To compare the effect of stavudine (d4T) alone or with zidovudine (AZT) versus didanosine (ddI) alone or with AZT on CD4 counts, HIV RNA levels, and viral load in HIV-infected patients \[AS PER AMENDMENT 3/21/97: To compare the effects of d4T alone versus ddI alone versus AZT plus ddI\]. To compare the safety of d4T/AZT. AS PER AMENDMENT 3/21/97: To evaluate the pharmacokinetic interactions of AZT and d4T both at an extracellular and intracellular level.

Although AZT and ddI can delay the advancement of HIV disease, the benefit of either of these drugs has proven to be only temporary. d4T, a new nucleoside analog with a favorable toxicity profile and demonstrated activity against HIV, offers an additional therapeutic option. It is reasonably assumed that the benefit of an antiretroviral agent in terms of delaying clinical disease progression is directly related to its ability to achieve and sustain viral suppression; thus, this study measures effects on viral load and CD4 count.

Detailed Description

Although AZT and ddI can delay the advancement of HIV disease, the benefit of either of these drugs has proven to be only temporary. d4T, a new nucleoside analog with a favorable toxicity profile and demonstrated activity against HIV, offers an additional therapeutic option. It is reasonably assumed that the benefit of an antiretroviral agent in terms of delaying clinical disease progression is directly related to its ability to achieve and sustain viral suppression; thus, this study measures effects on viral load and CD4 count.

Patients are randomized in a blinded fashion to receive AZT or placebo in combination with open-label d4T or ddI for up to 48 weeks. AS PER AMENDMENT 3/21/97: The study is now composed of three arms: open-label d4T versus open-label ddI plus blinded AZT placebo versus blinded AZT plus open-label ddI. Patients originally assigned to the d4T + AZT arm, which was closed 10/96, will be given the option of discontinuing AZT and remaining on d4T monotherapy or discontinuing all study drugs. In addition, all study participants will be asked to participate in a pharmacology substudy.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
200
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
Not specified
Primary Outcome Measures
NameTimeMethod
Secondary Outcome Measures
NameTimeMethod

Trial Locations

Locations (33)

Massachusetts General Hospital ACTG CRS

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Boston, Massachusetts, United States

Bmc Actg Crs

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Boston, Massachusetts, United States

Beth Israel Deaconess Med. Ctr., ACTG CRS

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Boston, Massachusetts, United States

University of Washington AIDS CRS

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Seattle, Washington, United States

Indiana Univ. School of Medicine, Infectious Disease Research Clinic

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Indianapolis, Indiana, United States

Ucsd, Avrc Crs

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San Diego, California, United States

Univ. of Cincinnati CRS

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Cincinnati, Ohio, United States

UCLA CARE Center CRS

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Los Angeles, California, United States

Stanford CRS

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Palo Alto, California, United States

Harbor-UCLA Med. Ctr. CRS

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Torrance, California, United States

Children's National Med. Ctr., ACTU

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Washington, District of Columbia, United States

Univ. of Florida Jacksonville NICHD CRS

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Jacksonville, Florida, United States

Univ. of Miami AIDS CRS

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Miami, Florida, United States

Northwestern University CRS

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Chicago, Illinois, United States

Cook County Hosp. CORE Ctr.

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Chicago, Illinois, United States

Rush Univ. Med. Ctr. ACTG CRS

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Chicago, Illinois, United States

Indiana Univ. School of Medicine, Wishard Memorial

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Indianapolis, Indiana, United States

Methodist Hosp. of Indiana

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Indianapolis, Indiana, United States

St. Louis ConnectCare, Infectious Diseases Clinic

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Saint Louis, Missouri, United States

Washington U CRS

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Saint Louis, Missouri, United States

SUNY Downstate Med. Ctr., Children's Hosp. at Downstate NICHD CRS

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Brooklyn, New York, United States

SUNY - Buffalo, Erie County Medical Ctr.

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Buffalo, New York, United States

Puerto Rico-AIDS CRS

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San Juan, Puerto Rico

San Juan City Hosp. PR NICHD CRS

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San Juan, Puerto Rico

Univ. of Rochester ACTG CRS

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Rochester, New York, United States

Weiss Memorial Hosp.

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Chicago, Illinois, United States

The Ohio State Univ. AIDS CRS

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Columbus, Ohio, United States

Hennepin County Med. Ctr., Div. of Infectious Diseases

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Minneapolis, Minnesota, United States

Tulane Hemophilia Treatment Ctr.

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New Orleans, Louisiana, United States

Ucsf Aids Crs

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San Francisco, California, United States

University of Colorado Hospital CRS

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Aurora, Colorado, United States

Univ. of Hawaii at Manoa, Leahi Hosp.

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Honolulu, Hawaii, United States

University of Minnesota, ACTU

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Minneapolis, Minnesota, United States

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