How long can the PAXgene Blood RNA tubes be kept frozen at –20°C or –70°C?

Currently we have data for storage at –20°C and –70°C for 96 months (In situ stability of RNA in blood specimens stored for 8 years (96 months) at –20°C and –70°C in PAXgene Blood RNA Tubes).  

Long term archiving studies are ongoing. See technical note: In Situ Stability of RNA in Blood Samples Stored at –20°C and –70°C in PAXgene Blood RNA Tubes.