Note: Clinical trial Phases 1-3 included. Phase 2 includes Phase 1/2, 2a & 2b trials. Non-industry sponsored trials, medical device trials & trials which were terminated or suspended are excluded from data.
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Clinical drug trials started worldwide 2018-2023, by key therapeutic area
In the period from 2018 to 2023, 28 percent of clinical drug trials started during these years were in the field of oncology, whereas a combined 13 percent of trials started were for infectious diseases (therapeutic and immunization). This statistic depicts the proportion of clinical trials started worldwide from 2018 to 2023, by key therapeutic area.
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IQVIA, & EFPIA. (December 9, 2024). Proportion of clinical trials started worldwide from 2018 to 2023, by key therapeutic area [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 28, 2026, from /statistics/1248657/clinical-drug-trials-by-key-therapeutic-area/
IQVIA, und EFPIA. "Proportion of clinical trials started worldwide from 2018 to 2023, by key therapeutic area." Chart. December 9, 2024. ÌÇÐÄÆƽâ°æ. Accessed July 28, 2026. /statistics/1248657/clinical-drug-trials-by-key-therapeutic-area/
IQVIA, EFPIA. (2024). Proportion of clinical trials started worldwide from 2018 to 2023, by key therapeutic area. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 28, 2026. /statistics/1248657/clinical-drug-trials-by-key-therapeutic-area/
IQVIA, and EFPIA. "Proportion of Clinical Trials Started Worldwide from 2018 to 2023, by Key Therapeutic Area." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 9 Dec 2024, /statistics/1248657/clinical-drug-trials-by-key-therapeutic-area/
IQVIA & EFPIA, Proportion of clinical trials started worldwide from 2018 to 2023, by key therapeutic area ÌÇÐÄÆƽâ°æ, /statistics/1248657/clinical-drug-trials-by-key-therapeutic-area/ (last visited July 28, 2026)
Proportion of clinical trials started worldwide from 2018 to 2023, by key therapeutic area [Graph], IQVIA, & EFPIA, December 9, 2024. [Online]. Available: /statistics/1248657/clinical-drug-trials-by-key-therapeutic-area/
