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Some proportions of populations, such as immunocompromised patients and organ transplant recipients might have inadequate immune responses to the vaccine for coronavirus disease 2019 (COVID‐19). For these groups of populations, administering monoclonal antibodies might offer some additional protection. This review sought to analyze the effectiveness and safety of tixagevimab‐cilgavimab (Evusheld) as pre‐exposure prophylaxis against COVID‐19. We used specific keywords to comprehensively search for potential studies on PubMed, Scopus, Europe PMC, and ClinicalTrials.gov sources until 3 September 2022. We collected all published articles that analyzed tixagevimab‐cilgavimab on the course of COVID‐19. Review Manager 5.4 was utilized for statistical analysis. Six studies were included. Our pooled analysis revealed that tixagevimab‐cilgavimab prophylaxis may decrease the rate of SARS‐CoV‐2 infection (OR: 0.24; 95% CI: 0.15–0.40, p < 0.00001, I2 = 75%), lower COVID‐19 hospitalization rate (OR: 0.13; 95% CI: 0.07–0.24, p < 0.00001, I2 = 0%), decrease the severity risk (OR: 0.13; 95% CI: 0.07–0.24, p < 0.00001, I2 = 0%), and lower COVID‐19 deaths (OR: 0.17; 95% CI: 0.03–0.99, p = 0.05, I2 = 72%). In the included studies, no major adverse events were reported. This study proposes that tixagevimab‐cilgavimab was effective and safe for preventing COVID‐19. Tixagevimab‐cilgavimab may be offered to those who cannot be vaccinated or have inadequate immune response from the COVID‐19 vaccine to give additional protection. [ABSTRACT FROM AUTHOR]

Summary: Vitamin D has many protective properties and potential role against acute lung injury. Low serum vitamin D is associated with high risk of pneumonia and development of acute respiratory distress syndrome. This study sought to analyse the efficacy of vitamin D in improving the outcomes of coronavirus disease 2019 (Covid‐19) patients. Using specific keywords, we comprehensively searched the potential articles on PubMed, Europe PMC and ClinicalTrials.gov database until 8th May 2021. All published studies on Covid‐19 and vitamin D were retrieved. Statistical analysis was conducted using Review Manager 5.4 software. A total of 11 studies with 22,265 Covid‐19 patients were included in the meta‐analysis. Our data suggested that vitamin D supplementation was associated with reduction in intensive care unit admission rate (OR 0.27; 95% CI: 0.09–0.76, p = 0.010, I2 = 70%, random‐effect modelling); reduction of the need for mechanical ventilation (OR 0.34; 95% CI: 0.16–0.72, p = 0.005, I2 = 61%, random‐effect modelling) and reduction of mortality from Covid‐19 (OR 0.37; 95% CI: 0.21–0.66, p < 0.001, I2 = 50%, random‐effect modelling). Further analysis showed that the associations were influenced by age (p = 0.020). Our study suggests that vitamin D supplementation may offer beneficial effects on Covid‐19 outcomes. However, more randomized clinical trials are required to confirm this conclusion. [ABSTRACT FROM AUTHOR]

Summary: Ivermectin is an FDA‐approved drug for a parasitic disease that has broad antiviral activity. This study aims to analyse the efficacy of ivermectin in improving the Covid‐19 outcomes. We systematically searched the PubMed, Europe PMC and ClinicalTrials.gov database using specific keywords related to our aims until 10th May 2021. All published randomized clinical trial studies on Covid‐19 and ivermectin were retrieved. The quality of the study was assessed using Jadad scale assessment tool for clinical trial studies. Statistical analysis was done using Review Manager 5.4 software. A total of 19 studies with 2768 Covid‐19 patients were included in this meta‐analysis. This meta‐analysis showed that ivermectin was associated with reduction in severity of Covid‐19 (RR 0.43 [95% CI 0.23–0.81], p = 0.008), reduction of mortality (RR 0.31 [95% CI 0.15–0.62], p = 0.001), higher negative RT‐PCR test results rate (RR 1.23 [95% CI 1.01–1.51], p = 0.04), shorter time to negative RT‐PCR test results (mean difference [MD] −3.29 [95% CI −5.69, −0.89], p = 0.007), higher symptoms alleviations rate (RR 1.23 [95% CI 1.03−1.46], p = 0.02), shorter time to symptoms alleviations (MD −0.68 [95% CI −1.07, −0.29], p = 0.0007) and shorter time to hospital discharge (MD −2.66 [95% CI −4.49, −0.82], p = 0.004). Our study suggests that ivermectin may offer beneficial effects towards Covid‐19 outcomes. More randomized clinical trial studies are still needed to confirm the results of our study. [ABSTRACT FROM AUTHOR]

Currently, there is no widely acceptable and proven effective treatment for coronavirus disease 2019 (COVID‐19). Colchicine has been shown to offer a benefit in reducing the inflammation in several inflammatory diseases. This study aims to analyze the efficacy of colchicine administration and outcomes of COVID‐19. We systematically searched the PubMed and Europe PMC database using specific keywords related to our aims until January 29, 2021. All articles published on COVID‐19 and colchicine treatment were retrieved. The quality of the study was assessed using the Newcastle–Ottawa Scale (NOS) tool for observational studies and Revised Cochrane risk‐of‐bias tool for randomized trials (RoB 2) for clinical trial studies. Statistical analysis was done using Review Manager 5.4 software. A total of eight studies with 5778 COVID‐19 patients were included in this meta‐analysis. This meta‐analysis showed that the administration of colchicine was associated with improvement of outcomes of COVID‐19 [OR 0.43 (95% CI 0.34–0.55), p < 0.00001, I2 = 0%, fixed‐effect modelling] and its subgroup which comprised of reduction from severe COVID‐19 [OR 0.44 (95% CI 0.31–0.63), p < 0.00001, I2 = 0%, fixed‐effect modelling] and reduction of mortality rate from COVID‐19 [OR 0.43 (95% CI 0.32–0.58), p < 0.00001, I2 = 0%, fixed‐effect modelling]. Our study suggests the routine use of colchicine for treatment modalities of COVID‐19 patients. More randomized clinical trial studies are still needed to confirm the results from this study. [ABSTRACT FROM AUTHOR]

Coronavirus disease 2019 (COVID‐19) has caused a significant impact on all aspects of life, with the number of death cases still increasing. Therefore, identification of potential treatment for reducing the severity of the disease is important. Currently, the data regarding the effectiveness of tocilizumab as treatment agents for COVID‐19 infection is still conflicting. This study aims to give clear evidence regarding the potential benefit of tocilizumab in reducing the biomarkers of COVID‐19 infection. We systematically searched the PubMed Central database using specific keywords related to our aims until July 24th, 2020. All articles published on COVID‐19 and tocilizumab were retrieved. A total of 9 studies with a total of 577 patients were included in our analysis. Our meta‐analysis showed that tocilizumab treatment is associated with reduction of C‐reactive protein (mean difference [MD]: −106.69 mg/L [95% confidence interval [CI]: −146.90, −66.49 mg/L], p <.00001; I2 = 98%, random‐effect modeling), d‐dimer (MD: −3.06 mg/L [95% CI: −5.81, −0.31 mg/L], p =.03; I2 = 98%, random‐effect modeling), Ferritin (MD: −532.80 ng/ml [95% CI: −810.93, −254.67 ng/ml], p =.0002; I2 = 25%, random‐effect modeling), procalcitonin (MD: −0.67 ng/ml [95% CI: −1.13, −0.22 ng/ml], p =.004; I2 = 92%, random‐effect modeling], and increment in the levels of lymphocyte count (MD: 0.36 × 103/μl [95% CI: 0.18, 0.54 × 103/μl], p <.0001; I2 = 88%, random‐effect modeling). Administration of tocilizumab is effective in reducing the biomarkers of the COVID‐19 infection. Highlights: There are no widely accepted drugs for the management of COVID‐19 patients.The benefit of tocilizumab administration in reducing the biomarkers of COVID‐19, but not on the mortality outcome.Physicians may hence consider adding tocilizumab as a treatment for patients with COVID‐19, especially in patients with severe disease. [ABSTRACT FROM AUTHOR]