Many meta-studies include Elgazzar, but most did a sensitivity study removing one at a time.
For example, Bryant used it, and then updated it in a letter - again, showing no major impact in the results.
Neil and Fenton do a Bayesian analysis with sensitivity to Elgazzar
A summary version of this article has been published as a letter in the American Journal of Therapeutics.
We show that there is strong evidence to support a causal link between ivermectin, Covid-19 severity and mortality, and: i) for severe Covid-19 there is a 90.7% probability the risk ratio favours ivermectin; ii) for mild/moderate Covid-19 there is an 84.1% probability the risk ratio favours ivermectin. Also, from the Bayesian metaanalysis for patients with severe Covid-19, the mean probability of death without ivermectin treatment is 22.9%, whilst with the application of ivermectin treatment it is 11.7%.
Edit : To address concerns expressed about the veracity of some of the studies we evaluate the sensitivity of the conclusions to any single study by removing one study at a time. In the worst case, where (Elgazzar 2020) is removed, the results remain robust, for both severe and mild to moderate Covid-19.