Preventing Aggregation of Recombinant Interferon Beta-1B in Solution by Additives: Approach to an Albumin-Free Formulation Publisher



Mahjoubi N¹ ; Fazeli MR¹ ; Dinarvand R² ; Khoshayand MR¹ ; Fazeli A³ ; Taghavian M¹ ; Rastegar H⁴
Source: Advanced Pharmaceutical Bulletin Published:2015

Abstract

Purpose: Aggregation suppressing additives have been used to stabilize proteins during manufacturing and storage. Interferonß-1b is prone to aggregation because of being nonglycosylated. Aggregation behavior of albumin-free formulations of recombinant IFNß-1b was explored using additives such as n-dodecyl-ß-D-maltoside, Tween 20, arginine, glycine, trehalose and sucrose at different pH. Methods: Fractional factorial design was applied to select major factors affecting aggregation in solutions. Box-Behnken technique was used to optimize the best concentration of additives and protein. Results: Quadratic model was the best fitted model for particle size, OD350 and OD280/OD260. The optimal conditions of 0.2% n-Dodecyl-ß-D-maltoside, 70 mM arginine, 189 mM trehalose and protein concentration of 0.50 mg/ml at pH 4 were achieved. A potency value of 91% ± 5% was obtained for the optimized formulation. Conclusion: This study shows that the combination of n-Dodecyl-ß-D-maltoside, arginine and trehalose would demonstrate a significant stabilizing and anti-aggregating effect on the liquid formulation of interferonß-1b. It can not only reduce the manufacturing costs but will also ease patient compliance.