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. 2019 Nov 6;48(D1):D1031–D1041. doi: 10.1093/nar/gkz981

Table 1.

Accumulation of drugs and their corresponding targets in the latest version and previous versions of the TTD

2020 2018 2016 2014 2012 2020 2018 2016 2014 2012
All Targets 3419 3101 2589 2316 1981 All Drugs 37 316 29 570 27 165 20 006 17 816
Successful 461 445 397 388 364 Approved 2649 2544 2071 2003 1540
Clinical Trial 1191 1121 723 461 286 Clinical Trial 9465 8103 7291 3147 1423
Patent-Recorded 207 0 0 0 0 Patented 5,059 0 0 0 0
Literature-Reported 1560 1535 1469 1467 1331 Experimental 20 143 18 923 17 803 14 856 14 853

Patented drugs and their corresponding targets were, for the first time, collected and integrated into this version of the TTD.