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All Studies   Meta Analysis    Recent:   
0 0.5 1 1.5 2+ Mortality 75% Improvement Relative Risk Metformin for COVID-19  Luo et al.  Prophylaxis Is prophylaxis with metformin beneficial for COVID-19? Retrospective 283 patients in China Lower mortality with metformin (p=0.02) c19early.org Luo et al., The American J. Tropical M.., May 2020 Favors metformin Favors control

Metformin Treatment Was Associated with Decreased Mortality in COVID-19 Patients with Diabetes in a Retrospective Analysis

Luo et al., The American Journal of Tropical Medicine and Hygiene, doi:10.4269/ajtmh.20-0375
May 2020  
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Metformin for COVID-19
3rd treatment shown to reduce risk in July 2020
 
*, now known with p < 0.00000000001 from 85 studies.
No treatment is 100% effective. Protocols combine complementary and synergistic treatments. * >10% efficacy in meta analysis with ≥3 clinical studies.
3,900+ studies for 60+ treatments. c19early.org
Retrospective 283 COVID-19+ diabetes patients in China, showing lower mortality with existing metformin treatment.
Study covers HCQ and metformin.
risk of death, 74.7% lower, RR 0.25, p = 0.02, treatment 3 of 104 (2.9%), control 22 of 179 (12.3%), NNT 11, adjusted per study, inverted to make RR<1 favor treatment, odds ratio converted to relative risk, multivariate.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Luo et al., 21 May 2020, retrospective, China, peer-reviewed, 9 authors.
This PaperMetforminAll
Metformin Treatment Was Associated with Decreased Mortality in COVID-19 Patients with Diabetes in a Retrospective Analysis
Pan Luo, Lin Qiu, Yi Liu, Xiu-Lan Liu, Jian-Ling Zheng, Hui-Ying Xue, Wen-Hua Liu, Dong Liu, Juan Li
The American Journal of Tropical Medicine and Hygiene, doi:10.4269/ajtmh.20-0375
Metformin was proposed to be a candidate for host-directed therapy for COVID-19. However, its efficacy remains to be validated. In this study, we compared the outcome of metformin users and nonusers in hospitalized COVID-19 patients with diabetes. Hospitalized diabetic patients with confirmed COVID-19 in the Tongji Hospital of Wuhan, China, from January 27, 2020 to March 24, 2020, were grouped into metformin and no-metformin groups according to the diabetic medications used. The demographics, characteristics, laboratory parameters, treatments, and clinical outcome in these patients were retrospectively assessed. A total of 283 patients (104 in the metformin and 179 in the no-metformin group) were included in this study. There were no significant differences between the two groups in gender, age, underlying diseases, clinical severity, and oxygen-support category at admission. The fasting blood glucose level of the metformin group was higher than that of the no-metformin group at admission and was under effective control in both groups after admission. Other laboratory parameters at admission and treatments after admission were not different between the two groups. The length of hospital stay did not differ between the two groups (21.0 days for metformin versus 19.5 days for no metformin, P = 0.74). However, in-hospital mortality was significantly lower in the metformin group (3/104 (2.9%) versus 22/179 (12.3%), P = 0.01). Antidiabetic treatment with metformin was associated with decreased mortality compared with diabetics not receiving metformin. This retrospective analysis suggests that metformin may offer benefits in patients with COVID-19 and that further study is indicated.
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