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Table 2 Stored samples mandated by the protocol and received at the central laboratory for testing

From: Assessing site performance in the Altair study, a multinational clinical trial

Region Buffy coat samples Plasma samples
Protocol- mandated buffy coat samples to be collected Actual buffy coat samples collected Protocol- mandated plasma samples to be collected Actual plasma samples collected Proportion of visits where plasma samples were not collected as required (%)
Asia 203 224 4,545 3,582 0
Australia 66 118 1,485 1,314 5
Europe 130 199 2,880 2,293 7
Latin America 196 317 4,365 3,607 5
North America 20 25 450 444 1