Figure 4. A graphical representation of (A) leading countries and sponsors associated with the clinical trials of the COVID-19 drug candidates and (B) phases and predicted timeline of the clinical trials of the COVID-19 drug candidates.

Many countries with at least 10 ongoing clinical trials through different sponsorships are shown by their names. Sponsors are categorized into two distinct groups: industry and others that include universities, organizations, government and government agencies. Different phases of drug trials with respect to specific timelines of potential approval are presented. Some of the drugs are in simultaneous clinical trials of two different phases, whereas the specific phases are not mentioned clearly for some others, hence kept in NA (Not applicable). The graphs have been generated using the Microsoft Excel application.