Table 1

The combined potency loss rate estimates of VZV (Oka/Merck) in both, hydrolyzed porcine gelatin (SOL-U-PRO), as well as recombinant human gelatin (FG-5001) stabilized, experimental refrigerator-stable varicella vaccine formulations stored at -15°C and 2–8°C for 24 months, and at 15°C for 12 months, respectively. The potency loss rates are in log10 PFU per month.


Potency Loss Rate Estimates (95%CI)


Storage Temperature
SOL-U-PRO
FG-5001
Combined

-15°C
0.000 (-0.004,0.005)
0.000 (0.005, 0.005)
0.000 (-0.003, 0.004)
2–8°C
0.005 (0.000, 0.010)
0.005 (0.000, 0.010)
0.005 (0.001, 0.009)
15°C
0.033 (0.017, 0.049)
0.033 (0.017, 0.048)
0.033 (0.022, 0.044)

Liska et al. Journal of Immune Based Therapies and Vaccines 2007 5:4   doi:10.1186/1476-8518-5-4