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Prevention of SARS-CoV-2 in Hospital Workers s Exposed to the Virus

Randomized Multicenter Study Evaluating the Efficacy of Azithromycin and Hydroxychloroquine in the Prevention of SARS-CoV-2 Infection in the Hospital Population Exposed to Virus

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04344379
Acronym
PREP-COVID
Enrollment
122
Registered
2020-04-14
Start date
2020-04-17
Completion date
2020-06-18
Last updated
2025-11-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

SARS-CoV-2 Infection

Keywords

COVID-19, SARS-CoV-2, hydroxychloroquine, azithromycin, caregivers

Brief summary

The Investigators propose to set up a preventive trial of infection in hospital workers at risk of coronavirus infection by comparing the rate of SARS-Cov-2 infection in a population of negative SARS-Cov-2 hospital workers receiving preventively azithromycin, hydroxychloroquine or a Placebo

Detailed description

Randomized clinical trial with 3 arms : hydroxychloroquine group, 300 subjects/azithromycin group, 300 subjects/ placebo of hydroxychloroquine group, 300 subjects. Hospital workers workers will be invited to participate in the study in each hospital and they will be included after giving their consent, assessment of their eligibility criteria, endonasal PCR and serolology at baseline. They will be randomized in one of the 3 arms, receive their treatment and will be followed by physical visit (at Day 2, Day 5, Day 15, Day 28) and by phone (at Day) 40 days with clinical data collection (tolerance and clinical signs of infection). At the end of treatment, another serology will be collected.

Interventions

DRUGhydroxychloroquine

200 mg BID per day

DRUGazithromycin

250 mg per day

200 mg BID per day

Sponsors

URC-CIC Paris Descartes Necker Cochin
CollaboratorOTHER
Assistance Publique - Hôpitaux de Paris
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

Hospital workers working at AP-HP hospitals over the age of 18 * Hospital workers who have signed consent * No signs of COVID-19 infection * Women who are likely to procreate should have a negative pregnancy test on inclusion day. In addition, they should use at least one effective contraceptive method before starting treatment, during treatment and up to 8 months after the last drug tested during the trial. Sexually active men should also have effective contraception during treatment and for at least 8 months after the last drug tested during the trial. * Affiliated or beneficiary of Social Security

Exclusion criteria

* History of SARS-CoV-2 infection confirmed by PCR or serology is available at inclusion * A history of clinical episode suspecting a PCR-confirmed or unconfirmed COVID-19 infection. * Pregnancy and breastfeeding * Allergy or contraindications to one of the 2 drugs in the study * Known retinopathy * Long congenital QT syndrome (or known in the family) * QTc or 450 ms in men, or 460 ms in women, if Fc 55/mn (except in case of intense sport practice), if ESV on baseline ECG, if QRS - or 120 ms, if AC/FA, if the PR or BAV lengthening * History of severe ischemic heart disease or unbalanced heart failure. * Clinically significant bradycardia known * Known kidney or liver failure * Known G6PD deficit * Subject who received antiviral treatment in the 14 days prior to inclusion * Subject who had treatment with azithromycin or hydroxychloroquine, in the 14 days prior to inclusion * Hypokaliemia (\<= 3.5 mmol/L), Increase in creatinine (\>=120 micromol/Ll, Increase in transaminases at baseline (\>=2N)

Design outcomes

Primary

MeasureTime frameDescription
To assess the impact of hydroxychloroquine and azithromycin on the prevention of SARS-CoV-2 contamination in hospital workers exposed to 40 days of treatment.3 monthsThe number of hospital workers with a positive serology or a positive PCR within 40 days of follow-up.

Secondary

MeasureTime frameDescription
Reducing seroconversion for SARS-CoV-2 without any clinical sign3 monthsnumber of seroconversion by serology between Day 0 and Day 40.
Evaluation of drug tolerance in the study40 daysnumber of cardiological severe adverse events assessed (ECG abnormalities : widening QT, ventricular arythmia, and cardiac arrests), other serious adverse events including hospitalizations, and deaths
Reducing clinical episodes due to suspected SARS-2 CoV infection confirmed by PCR40 daysClinical signs suggesting SARS-2 CoV infection confirmed by positive endonasal PCR
Observance of treatment measured by plasmatic concentrations of hydroxychloroquine or azythromycine40 daysPlasmatic concentrations of treatments
Incidence of cardiologic events40 daysnumber of cardiac events, especialy ECG abnormalities (widening QT) due to treatments
Evaluation on work stopping of hospital workers40 daysNumber of work stoppages over the period

Countries

France

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026