NCT00001029

Brief Summary

To compare the efficacy, safety and tolerance, and other clinical and immunologic effects of zidovudine (AZT) plus zalcitabine (dideoxycytidine; ddC), AZT plus didanosine (ddI), and AZT alternating monthly with ddI as measured by differences in survival among HIV-infected persons who have received 6 or more months of nucleoside monotherapy and have a CD4 count greater than or equal to 50 cells/mm3. Combining two nucleoside drugs has the theoretical advantage of optimal protection against the evolution of resistant strains of HIV. However, one major problem with combination nucleoside therapy in patients with advanced disease is the increased toxicity resulting from such therapy. One approach to minimize toxicity while perhaps retaining some of the benefits of combination therapy is to alternate the two drugs.

Trial Health

85
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
654

participants targeted

Target at P75+ for phase_2 hiv-infections

Geographic Reach
3 countries

37 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Completion

Last participant's last visit for all outcomes

May 1, 1993

Completed
6.5 years until next milestone

First Submitted

Initial submission to the registry

November 2, 1999

Completed
1.8 years until next milestone

First Posted

Study publicly available on registry

August 31, 2001

Completed
Last Updated

November 4, 2021

Status Verified

October 1, 2021

First QC Date

November 2, 1999

Last Update Submit

October 28, 2021

Conditions

Keywords

ZalcitabineDidanosineDrug Therapy, CombinationAcquired Immunodeficiency SyndromeZidovudine

Interventions

Eligibility Criteria

Age13 Years+
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Concurrent Medication:
  • Required:
  • PCP prophylaxis.
  • Allowed:
  • Erythropoietin.
  • Prophylaxis for MAI or fungal infections.
  • Antibiotics.
  • Over-the-counter, alternative, or regularly prescribed drugs.
  • Steroids, if for \< 21 days.
  • Concurrent Treatment:
  • Allowed:
  • Radiation therapy for cutaneous Kaposi's sarcoma.
  • Patients must have:
  • HIV infection.
  • CD4 count \<= 50 cells/mm3.
  • +4 more criteria

You may not qualify if:

  • Co-existing Condition:
  • Patients with the following symptoms or conditions are excluded:
  • Severe peripheral neuropathy.
  • Psychological or emotional problems sufficient to prevent study compliance.
  • Concurrent Medication:
  • Excluded:
  • Systemic chemotherapy for malignancy.
  • Acute or induction therapy for opportunistic infection.
  • Patients with the following prior conditions are excluded:
  • History of acute or chronic pancreatitis.
  • Grade 3 or greater toxicity to AZT, ddI, or ddC on two or more occasions.
  • Prior Medication:
  • Excluded:
  • Non-study nucleosides or biologic response modifiers within 7 days prior to study entry.
  • Acute therapy for opportunistic process within 14 days prior to study entry.
  • +1 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (37)

USC CRS

Los Angeles, California, 90033, United States

Location

Stanford CRS

Palo Alto, California, 94115, United States

Location

Ucsd, Avrc Crs

San Diego, California, 92103, United States

Location

Ucsf Aids Crs

San Francisco, California, United States

Location

Santa Clara Valley Med. Ctr.

San Jose, California, United States

Location

San Mateo County AIDS Program

San Mateo, California, United States

Location

Harbor-UCLA Med. Ctr. CRS

Torrance, California, 90502, United States

Location

University of Colorado Hospital CRS

Aurora, Colorado, United States

Location

Univ. of Miami AIDS CRS

Miami, Florida, United States

Location

Univ. of Hawaii at Manoa, Leahi Hosp.

Honolulu, Hawaii, 96816, United States

Location

Cook County Hosp. CORE Ctr.

Chicago, Illinois, 60612, United States

Location

Rush Univ. Med. Ctr. ACTG CRS

Chicago, Illinois, 60612, United States

Location

Northwestern University CRS

Chicago, Illinois, United States

Location

Indiana Univ. School of Medicine, Infectious Disease Research Clinic

Indianapolis, Indiana, 46202, United States

Location

Methodist Hosp. of Indiana

Indianapolis, Indiana, 46202, United States

Location

Univ. of Iowa Healthcare, Div. of Infectious Diseases

Iowa City, Iowa, United States

Location

Massachusetts General Hospital ACTG CRS

Boston, Massachusetts, 02114, United States

Location

Bmc Actg Crs

Boston, Massachusetts, 02118, United States

Location

Beth Israel Deaconess - East Campus A0102 CRS

Boston, Massachusetts, United States

Location

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

Minneapolis, Minnesota, 55415, United States

Location

University of Minnesota, ACTU

Minneapolis, Minnesota, 55455, United States

Location

St. Louis ConnectCare, Infectious Diseases Clinic

St Louis, Missouri, United States

Location

Washington U CRS

St Louis, Missouri, United States

Location

Univ. of Nebraska Med. Ctr., Durham Outpatient Ctr.

Omaha, Nebraska, 68198, United States

Location

Beth Israel Med. Ctr. (Mt. Sinai)

New York, New York, 10003, United States

Location

NY Univ. HIV/AIDS CRS

New York, New York, 10016, United States

Location

Cornell University A2201

New York, New York, 10021, United States

Location

Memorial Sloan-Kettering Cancer Ctr.

New York, New York, 10021, United States

Location

Univ. of Rochester ACTG CRS

Rochester, New York, 14642, United States

Location

Unc Aids Crs

Chapel Hill, North Carolina, 27599, United States

Location

Univ. of Cincinnati CRS

Cincinnati, Ohio, 45267, United States

Location

Case CRS

Cleveland, Ohio, 44106, United States

Location

The Ohio State Univ. AIDS CRS

Columbus, Ohio, United States

Location

Hosp. of the Univ. of Pennsylvania CRS

Philadelphia, Pennsylvania, 19104, United States

Location

University of Washington AIDS CRS

Seattle, Washington, 98122, United States

Location

Puerto Rico-AIDS CRS

San Juan, 00936, Puerto Rico

Location

Mbeya Med. Research Program, Mbeya Referral Hosp. CRS

Mbeya, Tanzania

Location

Related Publications (3)

  • Fichtenbaum CJ, Powderly WG. Refractory mucosal candidiasis in patients with human immunodeficiency virus infection. Clin Infect Dis. 1998 Mar;26(3):556-65. doi: 10.1086/514571.

    PMID: 9524822BACKGROUND
  • Henry K, Tierney C, Kahn J, Balfour H, Jiang Q, Kmack A, Fischl M. A randomized, double-blind, placebo-controlled study comparing combination nucleoside and triple therapy for the treatment of advanced HIV disease (CD4 less than or equal to 50/mm(3)). Conf Retroviruses Opportunistic Infect. 1997 Jan 22-26;4th:207 (abstract no LB6)

    BACKGROUND
  • Henry K, Erice A, Tierney C, Balfour HH Jr, Fischl MA, Kmack A, Liou SH, Kenton A, Hirsch MS, Phair J, Martinez A, Kahn JO. A randomized, controlled, double-blind study comparing the survival benefit of four different reverse transcriptase inhibitor therapies (three-drug, two-drug, and alternating drug) for the treatment of advanced AIDS. AIDS Clinical Trial Group 193A Study Team. J Acquir Immune Defic Syndr Hum Retrovirol. 1998 Dec 1;19(4):339-49. doi: 10.1097/00042560-199812010-00004.

    PMID: 9833742BACKGROUND

MeSH Terms

Conditions

HIV InfectionsAcquired Immunodeficiency Syndrome

Interventions

ZidovudineZalcitabineDidanosine

Condition Hierarchy (Ancestors)

Blood-Borne InfectionsCommunicable DiseasesInfectionsSexually Transmitted Diseases, ViralSexually Transmitted DiseasesLentivirus InfectionsRetroviridae InfectionsRNA Virus InfectionsVirus DiseasesGenital DiseasesUrogenital DiseasesImmunologic Deficiency SyndromesImmune System DiseasesSlow Virus Diseases

Intervention Hierarchy (Ancestors)

ThymidinePyrimidine NucleosidesPyrimidinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsDideoxynucleosidesDeoxyribonucleosidesNucleosidesNucleic Acids, Nucleotides, and NucleosidesDeoxycytidineCytidineInosinePurine NucleosidesPurinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingRibonucleosides

Study Officials

  • WK Henry

    STUDY CHAIR
  • JO Kahn

    STUDY CHAIR
  • HH Balfour

    STUDY CHAIR

Study Design

Study Type
interventional
Phase
phase 2
Purpose
TREATMENT
Sponsor Type
NIH
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 2, 1999

First Posted

August 31, 2001

Study Completion

May 1, 1993

Last Updated

November 4, 2021

Record last verified: 2021-10

Locations