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All Studies   Meta Analysis       

Efficacy and safety of oral ivermectin in the treatment of mild to moderate Covid-19 patients: a multi-centre double-blind randomized controlled clinical trial

Wijewickrema et al., BMC Infectious Diseases, doi:10.1186/s12879-024-09563-y, SLCTR/2021/020
Jul 2024  
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Mortality -196% Improvement Relative Risk Viral load 51% primary Ivermectin  Wijewickrema et al.  EARLY TREATMENT  DB RCT Is early treatment with ivermectin beneficial for COVID-19? Double-blind RCT 249 patients in Sri Lanka (July 2021 - March 2022) Improved viral clearance with ivermectin (p=0.028) c19ivm.org Wijewickrema et al., BMC Infectious Di.., Jul 2024 Favorsivermectin Favorscontrol 0 0.5 1 1.5 2+
Ivermectin for COVID-19
4th treatment shown to reduce risk in August 2020, now with p < 0.00000000001 from 105 studies, recognized in 23 countries.
No treatment is 100% effective. Protocols combine treatments.
5,100+ studies for 110 treatments. c19ivm.org
RCT 249 hospitalized patients with mild to moderate COVID-19 in Sri Lanka, showing statistically significant lower viral load.
There was no significant difference in clinical outcomes. Only one patient had a serious outcome. Mid-recovery 11/15 symptoms showed lower scores with treatment on day 5 and on day 10. On day 10, 19% of treatment patients were asymptomatic vs. 13% of placebo patients. WHO score analysis is limited by the large percentage of missing data.
Authors report that ivermectin blood levels taken before or with meals were not significantly different, however authors note that most patients consumed low fat meals. Guzzo et al. show that absorption of ivermectin was significantly higher when administered following a high-fat meal.
This is the 52nd COVID-19 RCT for ivermectin, which collectively show efficacy with p=0.00000021.
This is the 105th COVID-19 controlled study for ivermectin, which collectively show efficacy with p<0.0000000001 (1 in 774 quintillion).
risk of death, 196.1% higher, RR 2.96, p = 1.00, treatment 1 of 127 (0.8%), control 0 of 122 (0.0%), continuity correction due to zero event (with reciprocal of the contrasting arm).
viral load, 51.2% lower, relative load 0.49, p = 0.03, treatment 80, control 81, relative viral load (copies/mL), day 10, primary outcome.
Effect extraction follows pre-specified rules prioritizing more serious outcomes. Submit updates
Wijewickrema et al., 22 Jul 2024, Double Blind Randomized Controlled Trial, Sri Lanka, peer-reviewed, 11 authors, study period 29 July, 2021 - 17 March, 2022, dosage 24mg days 1-5, trial SLCTR/2021/020. Contact: h.banneheke@bangor.ac.uk.
This PaperIvermectinAll
Efficacy and safety of oral ivermectin in the treatment of mild to moderate Covid-19 patients: a multi-centre double-blind randomized controlled clinical trial
Ananda Wijewickrema, Hasini Banneheke, Arunasalam Pathmeswaran, Fathima Wardha Refai, Malika Kauranaratne, Neelika Malavige, Chandima Jeewandara, Mahendra Ekanayake, Dilhar Samaraweera, Dhanusha Thambavita, Priyadarshani Galappatthy
BMC Infectious Diseases, doi:10.1186/s12879-024-09563-y
Background Evidence on ivermectin as a treatment for Covid-19 is controversial. A Cochrane review concluded that the efficacy and safety of ivermectin is uncertain (evidence up to April 2022) and WHO recommended its use only in the setting of clinical trials. This study aimed to assess the efficacy and safety of oral ivermectin in hospitalized patients with mild to moderate Covid-19. Trial design and methods A double-blind, randomized placebo-controlled clinical trial was conducted among RT-PCR-confirmed, adults, hospitalised within the first four days of symptoms. Patients received oral ivermectin 24 mg or placebo daily for five days. RT-PCR was repeated on days five and ten. Clinical progression was monitored using the World Health Organization Clinical Progression Scale. Serum ivermectin levels were measured on days three, five, and seven. The primary outcome was the difference in the viral load between day zero and ten in the two groups. Results Out of 1699 patients screened, 249 underwent randomization and 127 received ivermectin, and 122 placebo. D10 median viral load for E gene (IQR) was 2,000 copies/mL (100 -20,500) with ivermectin (n = 80) and 4,100 copies/ mL (1,000-65,600) with placebo (n = 81, p = 0.028), per protocol analysis. The difference in Log viral load between day zero and ten between ivermectin and placebo was 3.72 and 2.97 respectively (p = 0.022). There was no significant difference in the WHO clinical progression scale or the adverse effects. Ivermectin blood levels taken before or with meals were not significantly different. Only 7 and 17 patients achieved blood levels above 160ng/ML and 100ng/ML respectively and they did not achieve a significantly lower viral load. Conclusion Although ivermectin resulted in statistically significant lower viral load in patients with mild to moderate Covid-19, it had no significant effect on clinical symptoms.
and 81 (placebo) patients. Table 2 presents the difference in Log 10 viral load (copies/mL) on day 10; the post hoc power is 60%, which is lower than the planned conventional 80%, as we did not achieve the calculated sample size. However, this is unlikely to have affected the findings of this trial as we have observed a significant reduction in the viral load in the ivermectin arm. A proportion of patients did not have day 28 followup clinical information as they were not contactable over the phone after discharge. Since all patients were Availability of data and materials The datasets used and/or analysed during the current study are available from the corresponding author on reasonable request. Declarations Ethics approval and consent to participate Ethics approval was obtained from the Ethics Review Committee of the Faculty of Medicine, University of Colombo (EC-21-EM02). All methods were carried out in accordance with relevant guidelines and regulations stated in the Declaration of Helsinki Consent for publication Not applicable. Competing interests The authors declare no competing interests. Publisher's Note Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
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Who, WHO advises that ivermectin only be used to treat COVID-19 within clinical trials
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