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. 2022 Oct 10;8:38. doi: 10.1038/s41540-022-00250-9

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© The Author(s) 2022

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 2 — a A total of 144 FDA-approved drugs were identified with consensus between three independent search methodologies. b Breakdown of the status of the subset of 67 drugs currently registered to clinical trials (July 27, 2020). c Breakdown of the 144 consensus drugs into the subset of 94 FDA Established Pharmacologic Classes (EPC) (of 540 EPC classes). Classes with fewer than three instances were collapsed to the other category.