According to a 2025 survey, ** percent of large organizations prioritize internal factors, thereby increasing the complexity of clinical trials. Comparatively, small and mid-sized organizations identify regulatory bodies as a key factor increasing complexity in clinical trials.Â
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Thermo Fisher (PPD). (February 17, 2026). Factors increasing complexity in clinical trials as of August 2025 [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 23, 2026, from /statistics/1662086/key-drivers-of-clinical-trial-complexity/
Thermo Fisher (PPD). "Factors increasing complexity in clinical trials as of August 2025." Chart. February 17, 2026. ÌÇÐÄÆƽâ°æ. Accessed July 23, 2026. /statistics/1662086/key-drivers-of-clinical-trial-complexity/
Thermo Fisher (PPD). (2026). Factors increasing complexity in clinical trials as of August 2025. ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 23, 2026. /statistics/1662086/key-drivers-of-clinical-trial-complexity/
Thermo Fisher (PPD). "Factors Increasing Complexity in Clinical Trials as of August 2025." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 17 Feb 2026, /statistics/1662086/key-drivers-of-clinical-trial-complexity/
Thermo Fisher (PPD), Factors increasing complexity in clinical trials as of August 2025 ÌÇÐÄÆƽâ°æ, /statistics/1662086/key-drivers-of-clinical-trial-complexity/ (last visited July 23, 2026)
Factors increasing complexity in clinical trials as of August 2025 [Graph], Thermo Fisher (PPD), February 17, 2026. [Online]. Available: /statistics/1662086/key-drivers-of-clinical-trial-complexity/
