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NCT00000679 · ClinicalTrials.gov registry record · Phase 2

(Ro 24-2027) A Randomized, Double-Blind, Comparative Study of Dideoxycytidine (ddC) Versus Zidovudine (AZT) in Patients With AIDS or Advanced ARC

A Phase 2 study, sponsored by National Institute of Allergy and Infectious Diseases (NIAID).

Completed
Registry status
Phase 2
Development phase
600
Enrollment target

NCT00000679: Completed Phase 2 study, sponsored by National Institute of Allergy and Infectious Diseases (NIAID).

NCT00000679 is a Phase 2 study that has completed, run by National Institute of Allergy and Infectious Diseases (NIAID). The registered enrollment target is 600 participants, above the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (351% higher). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT00000679, a Phase 2 study, has completed, sponsored by National Institute of Allergy and Infectious Diseases (NIAID).

COMPLETED
Registry status
Phase 2
Development phase
600 participants
Enrollment target

Study Summary

To show that zalcitabine (dideoxycytidine; ddC) is at least as effective as zidovudine (AZT) in the treatment of AIDS or advanced AIDS related complex (ARC), and also that ddC shows a different safety profile than AZT. In clinical studies, ddC shows antiviral activity. Because of the antiviral activity, and because of the low incidence of mild, reversible neurotoxicity and absence of blood-related toxicity with low dose ddC therapy, a long-term Phase II/III study comparing ddC to AZT in patients with AIDS or advanced ARC is now warranted.

Interventions

  • DRUG Zidovudine
  • DRUG Zalcitabine

Trial Details

FieldValue
Enrollment Target 600 participants
Phase Phase 2

What the finished NCT00000679 record still lists

NCT00000679 is an interventional study that assigns participants to a tested intervention. The registered 600 participants enrollment target is mid-sized for trials with a published cap, above the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (351% higher).

The record links to 0 conditions, and to 2 interventions - of which Zidovudine is the first listed.

NCT00000679 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT00000679 about?

NCT00000679 is a clinical study titled "(Ro 24-2027) A Randomized, Double-Blind, Comparative Study of Dideoxycytidine (ddC) Versus Zidovudine (AZT) in Patients With AIDS or Advanced ARC". To show that zalcitabine (dideoxycytidine; ddC) is at least as effective as zidovudine (AZT) in the treatment of AIDS or advanced AIDS related complex (ARC), and also that ddC shows a different safety profile than AZT. In clinical studies, ddC shows antiviral activity. Because of the antiviral acti...

What is the current status of trial NCT00000679?

This trial is currently completed. It is a Phase 2 study. The enrollment target is 600 participants.

What interventions are being tested in trial NCT00000679?

The interventions under investigation include: Zidovudine (DRUG), Zalcitabine (DRUG).

Who is sponsoring clinical trial NCT00000679?

This trial is sponsored by National Institute of Allergy and Infectious Diseases (NIAID), which has 2,006 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT00000679's enrollment target sits among peer trials

600 53rd of 2000 higher than 1,945 of 2,000 other Phase 2 trials

participants (enrollment target), bucketed by value

Each bar is a band; taller bars hold more other Phase 2 trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.

Source ClinicalTrials.gov registry export · 2026-08-08

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Source: ClinicalTrials.gov NCT00000679, the US trial registry maintained by the National Library of Medicine. NCT00000679 (mid enrollment · none site footprint · completed) retrieved and formatted by PlainTrial, see methodology.