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New developments in the conduct and management of multi‐center trials: an international review of clinical trial units

Summary— There is an urgent need for the performance of more, better designed, and better managed randomized clinical trials. After visits to 43 leading organizations and units involved in clinical trials in Europe and North America during 1993, the way of conducting randomized clinical trials was analyzed. By using a structured questionnaire, information on recent improvements in the way randomized clinical trials are performed was identified. These developments encompass human aspects (better information, collaboration, and communication) as well as non‐human aspects (press button phone randomization and data management systems). By employing such developments, randomized clinical trials can run much more efficiently. This facilitates faster and better answers to the questions addressed by randomized clinical trials, thereby also making them more ethical.