BfArM - Federal Institute for Drugs and Medical Devices

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Ratio of prospectively registered studies versus retrospectively registered studies per year from 2009 to 2023

Statistics of studies prospectively and retrospectively registered in DRKS from 2009 - 2023. The percentage increased constantly from around 40% in 2009 to around 60% in 2023.
Ratio of prospectively registered studies versus retrospectively registered studies per year from 2009 to 2023 Source: BfArM