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Status unknownNCT04363450HCQPrePUpdated Sep 2, 2020

Hydroxychloroquine as Prophylaxis for COVID-19 in Healthcare Workers (HCQPreP)

A Phase 3 interventional study of Hydroxychloroquine and Placebo in COVID-19, Corona Virus Infection and Wuhan Coronavirus, sponsored by Louisiana State University Health Sciences Center in New Orleans. Status unknown at 2 sites in United States. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-09-02.

Sponsored by Louisiana State University Health Sciences Center in New Orleans · Phase 3, Interventional, and Prevention

The sponsor has not verified this record recently (last verified Aug 2020), so the status shown — last known as Recruiting — may be out of date.
Phase
Phase 3
Study type
Interventional
Enrollment
1,700
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

This a double-blind, randomized, placebo-controlled clinical trial to determine if primary prophylaxis with hydroxychloroquine in healthcare workers reduces symptomatic COVID-19 infection. Healthcare workers will be randomized at a 1:1 allocation between intervention and placebo arms and followed for 12 weeks. This study will enroll up to 1,700 participates in Lafayette, Louisiana. The primary outcome will number of symptomatic COVID-19 infections. Secondary endpoints included number of days healthcare workers are absent from work and rate of severe infection.

Read the detailed description

The study is a double blind placebo controlled at two hospitals in Lafayette, Louisiana aiming to enroll 1700 participants with a 1:1 randomization. The HCQ dose in 400mg twice on day 1, then 200mg twice weekly. The primary outcome variable is development of symptomatic COVID-19 infection. The secondary objectives are number of days absent from work due to symptomatic COVID-19 infection and rate of severe disease due to COVID-19 (hypoxia in setting of >50% lung involvement on chest imaging, respiratory failure, shock or end-organ damage). The study will enroll participants for four weeks with and plan to treat with hydroxychloroquine versus placebo for a total of 12 weeks.

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Conditions studied

  • COVID-19
  • Corona Virus Infection
  • Wuhan Coronavirus
  • Prophylaxis
  • Healthcare Worker
  • Sars-CoV2
  • Hydroxychloroquine

Keywords

  • COVID-19
  • COVID-19 Prophylaxis
  • Healthcare Workers
  • SARS-COV-2
  • Hydroxychloroquine
03

In context

COVID-19

7,640 studies on the registry are indexed under COVID-19; 488 are open to participants now.

This study's planned enrollment of 1,700 is above the median of 100 across 4,099 interventional studies indexed under COVID-19.

Browse COVID-19 studies →

Lead sponsor

Louisiana State University Health Sciences Center in New Orleans is the lead sponsor of 70 studies on the registry; 12 are open to participants now.

Of its 7 completed or terminated interventional studies of FDA-regulated products, 1 (14%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  1. Age ≥ 18 years
  2. Healthcare or Hospital Worker who has direct patient contact
  3. Willing to participate in the research.
  4. Able to understand and sign the informed consent form

Exclusion criteria

Exclusion Criteria:

  1. Age \< 18 years
  2. History of ventricular arrhythmia or use of Class IA, IC and III anti-arrhythmics
  3. Known prolonged QTc interval
  4. History of retinal disease
  5. Kidney failure with GFR \<10%
  6. Chronic hepatic disease w/ Child-Pugh class B or C
  7. Hypersensitivity to chloroquine or hydroxychloroquine
  8. Currently taking chloroquine or hydroxychloroquine
  9. Unwilling to participate
  10. Unable to understand and/or sign the informed consent form.
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Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Quadruple (Participant, Care provider, Investigator, Outcomes assessor)
Enrollment
1,700 participants (estimated)

Study arms

  • Experimental
    Hydroxychloroquine

    Hydroxychloroquine loading dose will be given as 400mg for two doses 12 hours apart. This will then be followed by maintenance dosing of 200mg twice weekly for the remainder of the trial.

    Drug: Hydroxychloroquine

  • Placebo comparator
    Placebo

    An identical placebo will be administered on an identical dosing interval and frequency.

    Drug: Placebo

Interventions

  • DrugHydroxychloroquine

    Hydroxychloroquine loading 400mg (2 capsules) twice 12 hours apart followed by 200mg (1 capsule) twice weekly

    Also known as: HCQ PreP

  • DrugPlacebo

    Loading dose of two placebo capsules twice 12 hours apart followed by 1 capsule twice weekly

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What researchers measure

Primary outcomes

  1. Incidence of symptomatic COVID-19 infection in healthcare workers

    Number of participants who develop symptoms of COVID-19 in the setting of a positive COVID-19 assay

    Time frame: 12 weeks

Secondary outcomes

  1. Absenteeism from work due to COVID-19

    Number of days healthcare workers are absent from work due to symptomatic COVID-19 infection

    Time frame: 12 weeks

  2. Severity of COVID-19 infection

    Rate of severe COVID-19 infection in healthcare works (hypoxia in setting of chest imaging \>50% lung involvement, respiratory failure, end organ damage or shock)

    Time frame: 12 weeks

07

Study locations

2 of 2 sites recruiting
  • Lafayette General Medical Center
    Lafayette, Louisiana 70503, United States
    • Ann D Chauffe, DO, MPH · Contact · achauf@lsuhsc.edu · 337-261-6000
    • Rebecca B Lee, DO, MS · Sub investigator
    • Nicholas Sells, MD · Sub investigator
    • James B Falterman, MD · Sub investigator
    • Carl Sabottke, MD · Sub investigator
    • Daniel Stouts, MD · Sub investigator
    • Ann D Chauffe, DO, MPH · Principal investigator
    Recruiting
  • University Hospital and Clinics
    Lafayette, Louisiana 70506, United States
    • Ann D Chauffe, DO, MPH · Contact · achauf@lsuhsc.edu · 337-261-6000
    • Ann D Chauffe, DO, MPH · Principal investigator
    • Rebecca B Lee, DO, MS · Sub investigator
    • Nicholas Sells, MD · Sub investigator
    • James B Falterman, MD · Sub investigator
    • Carl Sabottke, MD · Sub investigator
    • Daniel Stout, MD · Sub investigator
    Recruiting
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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 2, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04363450
Lead sponsor
Louisiana State University Health Sciences Center in New Orleans
Collaborators
Lafayette General Health, University of Louisiana at Lafayette
Responsible party
Ann Chauffe (DO, MPH, Louisiana State University Health Sciences Center in New Orleans) — Principal investigator
First posted
Apr 27, 2020
Start date
Apr 27, 2020
Primary completion
Mar 31, 2021 (estimated)
Completion
Jun 1, 2021 (estimated)
Last update
Sep 2, 2020

Study contacts

Ann D. Chauffe, DO, MPH
Contact
achauf@lsuhsc.edu
337-261-6161
Rebecca B. Lee, DO, MS
Contact
rlee10@lsuhsc.edu
337-261-6000

Oversight

Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is status unknown, as verified in Aug 2020. You cannot join it, but the record below documents what was studied.

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