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All Studies   Meta Analysis    Recent:   
0 0.5 1 1.5 2+ Mortality 45% Improvement Relative Risk Ivermectin for COVID-19  Kerr et al.  Prophylaxis Is prophylaxis with ivermectin beneficial for COVID-19? PSM retrospective 104 patients in Brazil (July - December 2020) Lower mortality with ivermectin (p=0.046) Kerr et al., Research Gate, December 2021 Favors ivermectin Favors control

COVID-19 In-Hospital Mortality Rate is Reduced by Prophylactic Use of Ivermectin: Findings From a City-Wide, Prospective Observational Study Using Propensity Score Matching (PSM)

Kerr et al., Research Gate, doi:10.13140/RG.2.2.26793.52327
Dec 2021  
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Ivermectin for COVID-19
4th treatment shown to reduce risk in August 2020
*, now known with p < 0.00000000001 from 100 studies, recognized in 22 countries.
No treatment is 100% effective. Protocols combine complementary and synergistic treatments. * >10% efficacy in meta analysis with ≥3 clinical studies.
3,800+ studies for 60+ treatments.
PSM retrospective 378 hospitalized patients in Brazil, showing lower mortality for patients that were on ivermectin prophylaxis before admission (not taking into account the lower risk of being hospitalized shown in the related larger study).
This study is excluded in meta analysis: patients in this study are a subset of those in a larger study; not taking into account the lower risk of hospitalization shown in the related larger study.
risk of death, 45.0% lower, RR 0.55, p = 0.046, treatment 12 of 52 (23.1%), control 22 of 52 (42.3%), NNT 5.2, adjusted per study, propensity score matching, multivariable.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Kerr et al., 31 Dec 2021, retrospective, propensity score matching, Brazil, preprint, 9 authors, study period July 2020 - December 2020, dosage 200μg/kg days 1, 2, 16, 17, 0.2mg/kg/day for 2 days every 15 days.
This PaperIvermectinAll
COVID-19 In-Hospital Mortality Rate is Reduced by Prophylactic Use of Ivermectin: Findings From a City-Wide, Prospective Observational Study Using Propensity Score Matching (PSM)
MD, ARDMS Lucy Kerr, PhD Fernando Baldi, PhD Raysildo Barbosa Lôbo, Washington Luiz, Olivato Assagra, Fernando Carlos Proença, DDS, DPD, MRCDC Jennifer A Hibberd, Juan J Chamie-Quintero, MD, MPA Pierre Kory, MD, MSc, PhD Flavio A Cadegiani, MD, MSc Flávio A Cadegiani
Background: Based on ivermectin safety profile and lack of alternative options and vaccines, a medical-based citywide governmental program offered ivermectin prophylaxis for COVID-19 (city of Itajaí, state of Santa Catarina, Southern Brazi). The aim of the present study was to evaluate the impact of prophylactic ivermectin use in inhospital COVID-19 mortality rate. Materials and methods: We analyzed data from hospitalized COVID-19 patients of a major COVID-19 reference hospital during a city-wide program of ivermectin prophylaxis for COVID-19 (Hospital Marieta Konder Bornhausen, Itajaí, Santa Catarina, Brazil), between July and December 2020. We compared in-hospital mortality rates between patients that used ivermectin regularly prior to COVID-19 and those that did not use ivermectin. Comparisons were performed before and after propensity score matching (PSM). Groups were balanced for sex, age, hypertension, type 2 diabetes (T2D) and cancer. Liver [alanine transferase (ALT)], kidney (creatinine), and inflammatory [highsensitivity sensitive C-reactive protein (hs-CRP)] parameters were compared between ivermectin users and non-users through inverse PSM. Results: A total of 378 hospitalized subjects were included. In propensity score matched groups, two cohorts of 52 subjects were compared. There were 12 deaths among pre-COVID ivermectin users and 22 deaths among non-users (23.1% and 42.3% in-hospital all-cause mortality rate, respectively), a 45% reduction in in-hospital mortality rate ratio of (RR, 0.55; 95%CI, 0.30 -0.98; p = 0.044). Creatinine, hs-CRP and ALT levels were significantly lower among pre-COVID ivermectin users than non-users (p = 0.03, p = 0.0013 and p = 0.019). Conclusion : Prophylactic use of ivermectin for COVID-19 reduced in-hospital all-cause mortality rate due to COVID-19, irrespective of age, sex and comorbidities, and should be become a predictor of good outcomes among hospitalized subjects, in addition to the already known protective factors, including earlier age, female sex and absence of metabolic comorbidities.
Final discussion The potential benefits of ivermectin to prevent COVID-19 infection and risk of death due to COVID-19 in a population-level analysis 26 can be extended to those subjects that did not respond to ivermectin prophylaxis apparently, since they were infected by COVID-19 and the disease progressed to the need of hospitalization. This unexpected residual benefits of ivermectin were detected through reduction of in-hospital mortality, confirmed by unadjusted and multivariate Poisson adjusted analysis, and further confirmed through the employment of PSM. In addition, regular, chronic use of ivermectin seemed to provide protection for kidney and liver functions, and reduce the dysfunctional inflammatory response. Despite the limitations, the present findings are highly relevant for public health decision-making, since ivermectin has a well-established safety profile, potential benefits for other diseases, may reduce COVID-19-related health costs, and is unexpensive, with a favorable cost-effectiveness. Conclusion Conflict of Interest The authors declare no conflict of interest regarding the drug, ivermectin, and potential commercial benefits of the expansion of its use for COVID-19, or any other related gains. Dr Lucy Kerr received funding from Vitamedic, that manufactures ivermectin, unrelated to this study. Dr. Flavio A. Cadegiani was contracted by Vitamedic for consulting services unrelated to this study, and donated the full budget for COVID-19 patient care..
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