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Which outcome occurs when a pharmaceutical protein drug undergoes molecular aggregation during storage?

A)Reduced bioavailability and immunogenicity
B)Increased therapeutic enzymatic activity
C)Enhanced rate of drug clearance
D)Improved protein folding equilibrium

💡 Explanation

Protein aggregation reduces effectiveness because increased size reduces solubility and promotes immune responses; the therapeutic effect declines through decreased drug absorption via steric hindrance, generating immunogenic oligomers rather than improving efficacy, therefore resulting in reduced bioavailability.

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