Barcelona Postexposure Prophylaxis Study Against SARS-CoV-2 - BCN-PEP-CoV2
Contribution To Literature:
The BCN-PEP-CoV2 trial failed to show that hydroxychloroquine was superior to placebo at preventing SARS-CoV-2 infection after recent high-risk exposure.
Description:
The goal of the trial was to evaluate hydroxychloroquine compared with placebo among patients with recent high-risk exposure to a patient with polymerase-chain-reaction (PCR)–confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection (COVID-19).
Study Design
- Randomized
- Parallel
- Open-label
- Cluster randomization
Patients with recent high-risk exposure to a SARS-CoV-2–infected patient were randomized to hydroxychloroquine 800 mg on day 1, followed by 400 mg once daily for 6 days (n = 1,225) versus placebo (n = 1,300).
- Total number of enrollees: 4,399
- Duration of follow-up: 14 days
- Mean patient age: 49 years
- Percentage female: 73%
Inclusion criteria:
- Asymptomatic patients ≥18 years of age with recent high-risk exposure to a patient with SARS-CoV-2 infection
- No SARS-CoV-2 symptoms during the 2 weeks before enrollment
- Increased risk of infection (i.e., health care worker, a household contact, a nursing home worker or resident)
Principal Findings:
The primary outcome, PCR-confirmed symptomatic SARS-CoV-2 infection at 14 days, occurred in 5.7% of the hydroxychloroquine group compared with 6.2% of the placebo group (p = nonsignificant). The results were the same among those who were SARS-CoV-2 negative and SARS-CoV-2 positive at baseline.
Secondary outcomes:
- SARS-CoV-2 infection, defined as either PCR-confirmed SARS-CoV-2 or any symptoms compatible with SARS-CoV-2 infection at 14 days: 18.7% of the hydroxychloroquine group compared with 17.8% of the placebo group (p = nonsignificant)
- Any adverse event: 56.1% of the hydroxychloroquine group compared with 5.9% of the placebo group (p < 0.001)
- Treatment-related serious adverse events: 0% of the hydroxychloroquine group compared with 0% of the placebo group (p = nonsignificant)
Interpretation:
Among patients with recent high-risk exposure to SARS-CoV-2, hydroxychloroquine was not beneficial. Hydroxychloroquine was not associated with a reduction in the incidence of SARS-CoV-2 infection at 14 days. Adverse events were more frequent in the hydroxychloroquine group; however, there were no treatment-related adverse events in either group. Multiple studies have failed to show that hydroxychloroquine is beneficial in preventing or treating SARS-CoV-2 infection.
References:
Mitjà O, Corbacho-Monné M, Ubals M, et al. A Cluster-Randomized Trial of Hydroxychloroquine for Prevention of Covid-19. N Engl J Med 2020;Nov 24:[Epub ahead of print].
Clinical Topics: COVID-19 Hub, Prevention, Novel Agents, Statins
Keywords: Coronavirus Infections, COVID-19, Health Personnel, Hydroxychloroquine, Nursing Homes, Polymerase Chain Reaction, Post-Exposure Prophylaxis, Primary Prevention, Risk Assessment, severe acute respiratory syndrome coronavirus 2, Treatment Outcome
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