SARS-CoV-2 Clinical Trial
Official title:
Efficacy and Safety of Hydroxychloroquine in Primary Prophylaxis of SARS-CoV-2 Infection in Healthcare Workers at Risk of Exposure: Randomised Control Trial
Healthcare personnel are at an increased risk of exposure to SARS-CoV-2 infection while handling such patients. Currently, there is no treatment available for SARS-CoV-2 and stringent preventive measures are advised to avoid or minimize risk of exposure to healthcare workers. There are in vitro studies available which show inhibition of corona virus by hydroxychloroquine, a widely-used agent against malaria and certain autoimmune conditions and of low-cost and limited toxicity. However, evidence regarding its effects in patients is limited. We plan to conduct a randomized controlled trial to evaluate the safety and potential prophylactic efficacy of hydroxychloroquine in preventing secondary SARS-CoV-2 infection among healthcare workers at high-risk of exposure while managing such patients.
An interventional randomised control trial that will include 374 participants who will be healthcare workers at variable risks of exposure to SARS-CoV-2 while managing patients both suspected and confirmed with COVID-19 infection.Each participant will undergo detailed clinical evaluation to confirm eligibility, complete blood count, retinal imaging and ECG rhythm lead at baseline. A nasopharyngeal swab for reverse-transcriptase-polymerase chain reaction (RT-PCR) will also be taken. The enrolled participants will be randomised to two treatment arms with the experimental arm receiving Tab.Hydroxychloroquine (HCQ) 400mg twice a day on day 1 followed by 400mg weekly for 11 weeks. The placebo comparator arm will receive 2 tablets twice daily on day 1 followed by 2 tablets weekly for 11 weeks. The participants will be followed up via phone call weekly to ensure drug compliance, occurrence of drug-related side effects or respiratory symptoms. The final visit 4 will mark the end of study at 12 weeks from randomisation when a repeat nasopharyngeal swab for SARS-CoV-2 RT-PCR will be taken.The primary outcome measures will be prevention of SARS-CoV-2 infection as determined by a negative RT-PCR in the experimental arm at the end of 12 weeks and HCQ safety as determined by occurrence of adverse events. ;
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