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Counterfactual Estimation of Efficacy against Placebo for Novel PrEP Agents Using External Trial Data: Example of injectable cabotegravir and oral PrEP in women
![](https://www.prepwatch.org/wp-content/uploads/2023/08/Donnell-et-al.jpg)
This article from JIAS uses estimated prevention efficacy against a counterfactual placebo to provide information on the use of cabotegravir for PrEP and oral PrEP compared to no intervention.