The publication and subsequent retraction1,2 in June, 2020, of the Article Hydroxychloroquine
or chloroquine with or without a macrolide for treatment of COVID-19: a multinational
registry analysis, based on an alleged dataset associated with Surgisphere, prompted
us to examine The Lancet’s peer-review processes to identify ways of further reducing
risks of research and publication misconduct. As a result of this review, with immediate
effect, we have made changes to the declarations we seek from authors, the data sharing
statements we require for published research papers, and the peer-review process for
similar papers based on large datasets or real-world data.

Source: www.thelancet.com