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. Author manuscript; available in PMC: 2017 Sep 1.
Published in final edited form as: Cancer J. 2016 Sep-Oct;22(5):315–320. doi: 10.1097/PPO.0000000000000220

Table 2.

Sample Collection and Processing Protocol and Detection Frequency of AdnaTest, DDPCR and CellSearch Assays

Assay Tube, Volume Storage/Transport, Time to Processing Detection Frequency (95% CI)
AdnaTest tumor-specific gene transcript detection EDTA 10 mL On ice, <4 hours 62% (47-75%)
DDPCR prostate-specific gene transcript detection in whole blood PAXgene 2.5 mL Up to 7 days at room temp, 60 months frozen at −80°C 69% (55–81%)
CellSearch enumeration CellSave 7.5 mL Room temp, <96 hours 45% (33–58%)

Abbreviations: CI, confidence interval; DDPCR, direct detection polymerase chain reaction; EDTA, ethylenediaminetetraacetic acid.