Journal
JOURNAL OF PHARMACEUTICAL SCIENCES
Volume 106, Issue 5, Pages 1266-1274Publisher
WILEY
DOI: 10.1016/j.xphs.2017.01.002
Keywords
monoclonal antibody; cyclodextrins; complexation; hydrogels; physical stability
Funding
- Terumo Corporation (Kanagawa, Japan)
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Antibodies often have poor physicochemical stability during storage and transport, which is a serious drawback for the development of antibody-based drugs. In this study, we prepared polypseudorotaxane (PPRX) hydrogels consisting of cyclodextrins (CyDs) and polyethylene glycol, and evaluated them as stabilizers for commercially available antibody-based drugs. alpha-CyD and gamma-CyD formed PPRX hydrogels with polyethylene glycol (molecular weight 20,000 Da) in the presence of antibody-based drugs such as omalizumab, palivizumab, panitumumab, and ranibizumab. Importantly, both alpha- and gamma-CyD PPRX hydrogel formulations provided high stabilizing effects (ca. 100%) to the all antibody-based drugs used in this study. Furthermore, approximately 100% of the binding activity of omalizumab to the immunoglobulin E receptor was retained after the release from the hydrogels. Plasma levels of omalizumab after subcutaneous injection of the gamma-CyD PPRX hydrogel to rats were equivalent to those of omalizumab alone. According to the results of blood chemistry tests, the weights of organs and histological observations alpha- and gamma-CyD PPRX hydrogels induced no serious adverse effects. These results suggest that CyD PPRX hydrogels are useful as safe and promising stabilizing formulations for antibody-based drugs. (C) 2017 Published by Elsevier Inc. on behalf of the American Pharmacists Association.
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