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Molnupiravir: A new candidate for COVID-19 treatment.

ABSTRACT: The novel coronavirus disease 2019 (COVID-19) emerged in late December 2019 in china and has rapidly spread to many countries around the world. The effective pharmacotherapy can reduce the mortality of COVID-19. Antiviral medications are the candidate therapies for the management of COVID-19. Molnupiravir is an antiviral drug with anti-RNA polymerase activity and currently is under investigation for the treatment of patients with COVID-19. This review focuses on summarizing published literature for the mechanism of action, safety, efficacy, and clinical trials of molnupiravir in the treatment of COVID-19 patients.

SUBMITTER: Pourkarim F

PROVIDER: S-EPMC8929331 | biostudies-literature | 2022 Feb

REPOSITORIES: biostudies-literature

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Molnupiravir: A new candidate for COVID-19 treatment.

Pourkarim Fariba F Pourtaghi-Anvarian Samira S Rezaee Haleh H

Pharmacology research & perspectives 20220201 1

The novel coronavirus disease 2019 (COVID-19) emerged in late December 2019 in china and has rapidly spread to many countries around the world. The effective pharmacotherapy can reduce the mortality of COVID-19. Antiviral medications are the candidate therapies for the management of COVID-19. Molnupiravir is an antiviral drug with anti-RNA polymerase activity and currently is under investigation for the treatment of patients with COVID-19. This review focuses on summarizing published literature ...[more]

PMID: 34968008

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Project description:BackgroundNew treatments are needed to reduce the risk of progression of coronavirus disease 2019 (Covid-19). Molnupiravir is an oral, small-molecule antiviral prodrug that is active against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2).MethodsWe conducted a phase 3, double-blind, randomized, placebo-controlled trial to evaluate the efficacy and safety of treatment with molnupiravir started within 5 days after the onset of signs or symptoms in nonhospitalized, unvaccinated adults with mild-to-moderate, laboratory-confirmed Covid-19 and at least one risk factor for severe Covid-19 illness. Participants in the trial were randomly assigned to receive 800 mg of molnupiravir or placebo twice daily for 5 days. The primary efficacy end point was the incidence hospitalization or death at day 29; the incidence of adverse events was the primary safety end point. A planned interim analysis was performed when 50% of 1550 participants (target enrollment) had been followed through day 29.ResultsA total of 1433 participants underwent randomization; 716 were assigned to receive molnupiravir and 717 to receive placebo. With the exception of an imbalance in sex, baseline characteristics were similar in the two groups. The superiority of molnupiravir was demonstrated at the interim analysis; the risk of hospitalization for any cause or death through day 29 was lower with molnupiravir (28 of 385 participants [7.3%]) than with placebo (53 of 377 [14.1%]) (difference, -6.8 percentage points; 95% confidence interval [CI], -11.3 to -2.4; P = 0.001). In the analysis of all participants who had undergone randomization, the percentage of participants who were hospitalized or died through day 29 was lower in the molnupiravir group than in the placebo group (6.8% [48 of 709] vs. 9.7% [68 of 699]; difference, -3.0 percentage points; 95% CI, -5.9 to -0.1). Results of subgroup analyses were largely consistent with these overall results; in some subgroups, such as patients with evidence of previous SARS-CoV-2 infection, those with low baseline viral load, and those with diabetes, the point estimate for the difference favored placebo. One death was reported in the molnupiravir group and 9 were reported in the placebo group through day 29. Adverse events were reported in 216 of 710 participants (30.4%) in the molnupiravir group and 231 of 701 (33.0%) in the placebo group.ConclusionsEarly treatment with molnupiravir reduced the risk of hospitalization or death in at-risk, unvaccinated adults with Covid-19. (Funded by Merck Sharp and Dohme; MOVe-OUT ClinicalTrials.gov number, NCT04575597.).

Project description:BackgroundThroughout the time of the global pandemic of SARS-CoV-2 virus, there has been a compelling necessity for the development of effective antiviral agents and prophylactic vaccines to limit the virus spread, disease burden, hospitalization, and mortality. Until mid of 2021, the NIH treatment guideline declared no single oral therapy was proven to treat mild to moderate cases. A new hope arose when a repurposed direct acting oral anti-viral agent "Molnupiravir" was shown to be effective in decreasing mortality and need for hospitalization in mild to moderate cases with relatively good safety profile; exhibiting a significant reduction in virus titers only after two days from administration. Molnupiravir recently granted the FDA emergency use authorization to treat mild to moderate COVID-19 patients with at least one risk factor for progression.MethodsWe performed a computer-based literature search of (PubMed, Science direct, MedRxiv, BioRxiv, ClinicalTrials.gov, ISRCTN, Cochrane COVID study register, EU registry, and CTRI registry) till February 15th, 2022. The following keywords were used in our search ("Molnupiravir", "NHC", "EIDD-2807", "MK-4482" or "EIDD-1931").ResultsWe identified from the initial search a total of 279 articles; 246 articles (BioRxiv and MedRxiv N = 186, PubMed N = 33, Science direct N = 27) and 33 Clinical trials from the following registries (ISCTRN (N = 1), Clinical Trials.gov (N = 6), CTRI (N = 12), Cochrane (N = 14)). Through screening phases, 21 records were removed as duplicates and 198 irrelevant records were also excluded. The included studies in this systematic review were (N = 60) included 39 published papers and 21 clinical trials. After Manual addition (N = 4), the qualitative assessment included (N = 64).ConclusionBased on the cumulative evidence from preclinical and clinical studies, Molnupiravir is proven to be a well tolerated, direct acting oral anti-viral agent to halt the disease progression in mild to moderate COVID-19 cases; in terms of mortality and hospitalization rates.

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Molnupiravir: A new candidate for COVID-19 treatment.

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Molnupiravir: A new candidate for COVID-19 treatment.

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