NCT04347889

Brief Summary

Healthcare workers (HCW) at risk of Covid-19 will have baseline serology for SARS-CoV-2 to see if they are already immune to Covid-19. HCW will get baseline assessment and if meeting inclusion criteria and no exclusion criteria they will be randomized in a 2:1 ratio to hydroxychloroquine or Vitamin C on a weekly basis for three months. Subjects will complete daily diary of symptoms and temperature, and will have repeat SARS-CoV-2 serology at 6 weeks and 3 months to determine seroconversion.

Trial Health

15
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Timeline
Completed

Started Apr 2020

Status
withdrawn

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

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

April 13, 2020

Completed
2 days until next milestone

First Posted

Study publicly available on registry

April 15, 2020

Completed
5 days until next milestone

Study Start

First participant enrolled

April 20, 2020

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 30, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2020

Completed
Last Updated

November 2, 2020

Status Verified

October 1, 2020

Enrollment Period

8 months

First QC Date

April 13, 2020

Last Update Submit

October 28, 2020

Conditions

Keywords

covid-19healthcare workersprophylaxishydroxychloroquine

Outcome Measures

Primary Outcomes (1)

  • COVID-19 Seroconversion rate

    Percentage of healthcare worker who develop antibodies to SARS-CoV-2

    3 months

Secondary Outcomes (1)

  • Admission for Covid-19

    3 months

Study Arms (2)

Hydroxychloroquine

EXPERIMENTAL

Oral loading dose of 800 mg followed by once weekly oral hydroxychloroquine 400 mg for 3 months

Drug: Hydroxychloroquine

Vitamin C

ACTIVE COMPARATOR

Oral Vitamin C 1,000 mg daily for three months

Other: Vitamin C

Interventions

Oral loading dose followed by once weekly dosing

Hydroxychloroquine

Once daily vitamin C 1 gm

Vitamin C

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Healthcare worker at risk of Covid-19

You may not qualify if:

  • Known hypersensitivity or allergic reactions to 4-aminoquinoline compounds or its ingredients.
  • Current, or history of, ocular macular disease or retinal damage.
  • Current, or history of, subnormal glomerular filtration.
  • Current use of tamoxifen citrate.
  • Current, or history of, cardiomyopathy, atrial, nodal, or ventricular arrhythmias, torsades de pointes, conduction disorders (bundle branch block/atrio-ventricular heart block) or biventricular hypertrophy.
  • Subjects taking other drugs that have the potential to prolong QT interval if taken with HCQ.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

COVID-19

Interventions

HydroxychloroquineAscorbic Acid

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract Diseases

Intervention Hierarchy (Ancestors)

ChloroquineAminoquinolinesQuinolinesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingHeterocyclic CompoundsSugar AcidsAcids, AcyclicCarboxylic AcidsOrganic ChemicalsHydroxy AcidsCarbohydrates
0

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
Outcomes assessors will be masked to study assignment
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Open label, controlled, RCT
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor and Vice Chairman for Research

Study Record Dates

First Submitted

April 13, 2020

First Posted

April 15, 2020

Study Start

April 20, 2020

Primary Completion

December 30, 2020

Study Completion

December 30, 2020

Last Updated

November 2, 2020

Record last verified: 2020-10