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NCT04335552 · ClinicalTrials.gov registry record · Phase 2

Pragmatic Factorial Trial of Hydroxychloroquine, Azithromycin, or Both for Treatment of Severe SARS-CoV-2 Infection

A Phase 2 study, sponsored by Duke University.

Terminated
Registry status
Phase 2
Development phase
11
Enrollment target

NCT04335552: Clinical Trial Phase 2 study, sponsored by Duke University.

NCT04335552 is a Phase 2 study that was terminated before completion, run by Duke University. The registered enrollment target is 11 participants, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (92% lower). According to ClinicalTrials.gov, the official US trial registry.

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The verdict

NCT04335552, a Phase 2 study, was terminated before completion, sponsored by Duke University.

TERMINATED
Registry status
Phase 2
Development phase
11 participants
Enrollment target

Study Summary

This is a pragmatic, randomized, open-label, incomplete factorial with nested randomization clinical trial evaluating the efficacy and safety of two potential treatments for hospitalized patients with confirmed SARS-CoV-2 infection. Participants who are hospitalized and have a positive nucleic acid amplification test for SARS-CoV-2 will undergo an initial randomization in a 1:1 ratio to one of the following regimens: Arm 1: Standard of care alone Arm 2: Standard of care plus hydroxychloroquine Participants who meet eligibility criteria to receive azithromycin will undergo a second randomization in a 1:1 ratio to receive additional concurrent therapy. This will effectively result in four treatment groups: 1. Standard of care alone 2. Standard of care plus hydroxychloroquine 3. Standard of care plus azithromycin 4. Standard of care plus hydroxychloroquine plus azithromycin

Primary Outcome

The ordinal scale is an assessment of the clinical status at the first assessment of a given study day. The scale is as follows: 1) Death; 2) Hospitalized, on invasive mechanical ventilation or extracorporeal membrane oxygenation (ECMO); 3) Hospitalized, on non-invasive ventilation or high flow oxygen devices; 4) Hospitalized, requiring supplemental oxygen; 5) Hospitalized, not requiring supplemental oxygen - requiring ongoing medical care (COVID-19 related or otherwise); 6) Hospitalized, not re

Interventions

  • DRUG Azithromycin
  • OTHER Standard of care
  • DRUG Hydroxychloroquine

Trial Details

FieldValue
Enrollment Target 11 participants
Start Date 2020-04-17
Est. Completion 2020-06-26
Phase Phase 2
Duke University

1,725 total trials

Why NCT04335552 stopped before completion

NCT04335552 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 11 participants, a relatively small participant target, below the 133-participant average among 30,622 other Phase 2 trials with a reported enrollment target (92% lower).

The record links to 0 conditions, and to 3 interventions - of which Azithromycin is the first listed.

NCT04335552 does not publish any study locations in the registry export this page uses.

Frequently Asked Questions

What is clinical trial NCT04335552 about?

NCT04335552 is a clinical study titled "Pragmatic Factorial Trial of Hydroxychloroquine, Azithromycin, or Both for Treatment of Severe SARS-CoV-2 Infection". This is a pragmatic, randomized, open-label, incomplete factorial with nested randomization clinical trial evaluating the efficacy and safety of two potential treatments for hospitalized patients with confirmed SARS-CoV-2 infection. Participants who are hospitalized and have a positive nucleic acid ...

What is the current status of trial NCT04335552?

This trial is currently terminated. It is a Phase 2 study. The enrollment target is 11 participants. The study started on 2020-04-17. Estimated completion is 2020-06-26.

What interventions are being tested in trial NCT04335552?

The interventions under investigation include: Azithromycin (DRUG), Standard of care (OTHER), Hydroxychloroquine (DRUG).

Who is sponsoring clinical trial NCT04335552?

This trial is sponsored by Duke University, which has 1,725 total clinical trials registered on ClinicalTrials.gov.

How this trial's enrollment target compares

Where NCT04335552's enrollment target sits among peer trials

11 1967th of 2000 higher than 33 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 NCT04335552, the US trial registry maintained by the National Library of Medicine. NCT04335552 (small enrollment · none site footprint · terminated) retrieved and formatted by PlainTrial, see methodology.