Efficacy of povidone-iodine nasal rinse and mouth wash in COVID-19 management: a prospective, randomized pilot clinical trial (povidone-iodine in COVID-19 management).

"Declarations Ethics approval and consent to participateThe study was approved by the King Saud University Institutional Review Board and the Saudi Food and Drug Authority Clinical Trial Unit. All patients who met the inclusion criteria signed a written informed consent form that mentioned possible risks and benefits associated with the intervention. Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding None."

"All patients who met the inclusion criteria signed a written informed consent form that mentioned possible risks and benefits associated with the intervention. All procedures conducted in this study were in accordance with the ethical standards of the institutional and national research committees and with the 1964 Declaration of Helsinki. Approval was obtained from the King Saud University College of Medicine Institutional Review Board (number: E-20-5656) and the Saudi Food and Drug Authority (SFDA) Clinical Trials Unit (number: 21,060,203) before starting the study. The study was registered on clinicaltrials.gov with registration number NCT04449965 on 29/06/2020."