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Fig. 3 | Trials

Fig. 3

From: Changing platforms without stopping the train: experiences of data management and data management systems when adapting platform protocols by adding and closing comparisons

Fig. 3

a Increasing complexity of shared, single-database design when adding and closing comparisons in STAMPEDE. b Shared and unique database designs when adding and closing comparisons in FOCUS4. a and b key: 1Arm G (abiraterone comparison) incorporated in 2011. 2Arms H–K sequentially incorporated over time; arms B–F closed. 3Current comparisons incorporated as per Fig. 1 (split into eight copies as seen in Fig. 4a). 4Initial release in 2014 with two databases, registration period and main trial period. Comparisons N and D are within the same database design. 5FOCUS4-B added within the existing database design and database. 6FOCUS4-C added within the same database with a new database design. FOCUS4-D and -B closed to recruitment. FOCUS4-N continues recruitment

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