A formulation for purified adenoviral vectors was developed that provides stability through freeze-thaw stress and long-term storage at non-frozen temperatures. To evaluate the various test conditions, a panel of stability indicating methods was assembled, which included laser light scattering, HPLC, and transgene expression assays. Preformulation studies were conducted, and the effects of buffer species, pH, cryoprotectants, and salts upon adenoviral vector stability were determined
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Sosnowski et al. (2002) studied this question.