Table 5

Number and proportion of clinical studies registered each year with or without industry involvement, for the registered studies sponsored by China and the global registrations, up to 2018

YearGlobal (n/%)China (n/%)
IndustryNon-industryIndustryNon-industry
Pre-200936 977 (40)54 382 (60)109 (15)595 (85)
20099798 (39)15 034 (61)98 (15)531 (84)
20109943 (37)16 931 (63)158 (20)628 (80)
20119843 (35)18 379 (65)190 (16)1015 (84)
201210 298 (32)21 836 (68)277 (16)1481 (84)
20139407 (28)24 126 (72)304 (15)1773 (85)
201411 259 (30)26 628 (70)369 (14)2319 (86)
201511 080 (27)30 128 (73)478 (15)2755 (85)
201611 367 (24)36 040 (76)580 (13)4019 (87)
201711 631 (22)41 422 (78)790 (13)5426 (87)
201812 755 (21)48 865 (79)1106 (13)7556 (87)
Total144 358 (30)333 771 (70)4459 (14)28 098 (86)
  • Data note: Industry involvement was determined according to sponsor type and funding type from the official website of each registry. The ClinicalTrials.gov, Japan Primary Registries Network, EU Clinical Trials Register, Iranian Registry of Clinical Trials, AustralianNew Zealand Clinical Trials Registry, InternationalStandard Randomised Controlled Trial Number, Clinical Trials Registry—India, German Clinical Trials Register and ReBec databases used several categories for sponsor type and funding type, and all these categories had been mapped to industry or non-industry. When the sponsor type and funding type could not be directly obtained from official websites, the type was manually determined according to the primary sponsor name and source support name. 132 entries with absent ‘primary sponsor’ and ‘source support’ values were excluded from the analysis for industry involvement.