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Effects of dilution and prolonged storage with preservative in a polyethylene container on Bevacizumab (Avastin™) for topical delivery as a nasal spray in anti-hereditary hemorrhagic telangiectasia and related therapies.
Effects of dilution and prolonged storage with preservative in a polyethylene container on Bevacizumab (Avastin™) for topical delivery as a nasal spray in anti-hereditary hemorrhagic telangiectasia and related therapies.
- Source :
-
Human antibodies [Hum Antibodies] 2011; Vol. 20 (3-4), pp. 95-101. - Publication Year :
- 2011
-
Abstract
- Background: Hereditary hemorrhagic telangiectasia (HHT) is an autosomal dominant vascular dysplasia and severe, recurrent epistaxis is a common clinical phenotype associated with HHT. An intranasal treatment regime of diluted Avastin™ (Bevacizumab; recombinant humanized anti-vascular epithelial growth factor immunoglobin G1) using apulsatile nasal irrigator has proven efficacious in clinical practice. However, concerns regarding the stability of Avastin™ following dilution and prolonged storage in standard containers used for drug delivery, such as polyethylene bottles, have so far prevented a more widespread clinical use. Compatibility with the preservative benzalkonium chloride was also unknown.<br />Objective: This study aimed at determining, whether dilution, prolonged refrigerated storage and the presence of the preservative benzalkonium chloride - as required for novel Avastin™ formulations - affected the biochemical and electrochemical properties of the drug.<br />Methods: We performed a detailed biochemical and electrochemical analysis of Avastin™, including native and sodium dodecyl sulfate polyacrylamide gel electrophoresis, enzyme-linked immunosorbent assay and isoelectric focusing.<br />Results: We did not detect any evidence of degeneration or aggregation following dilution and prolonged, refrigerated storage or from the presence of benzalkonium chloride. All biochemical and electrochemical properties of Avastin™ after dilution and prolonged, refrigerated storage were undistinguishable from control.<br />Conclusions: Our data provide important insight into the stability of Avastin™ and allow the consideration of novel Avastin™ formulations, including its use in a metered-dose nasal spray for the treatment of HHT and other applications.
- Subjects :
- Activin Receptors, Type II genetics
Administration, Intranasal
Angiogenesis Inhibitors administration & dosage
Angiogenesis Inhibitors therapeutic use
Antibodies, Monoclonal, Humanized administration & dosage
Antibodies, Monoclonal, Humanized therapeutic use
Bevacizumab
Drug Stability
Electrophoresis, Polyacrylamide Gel
Enzyme-Linked Immunosorbent Assay
Epistaxis complications
Epistaxis immunology
Epistaxis metabolism
Humans
Isoelectric Focusing
Nasal Sprays
Polyethylene chemistry
Preservatives, Pharmaceutical chemistry
Telangiectasia, Hereditary Hemorrhagic complications
Telangiectasia, Hereditary Hemorrhagic immunology
Telangiectasia, Hereditary Hemorrhagic metabolism
Vascular Endothelial Growth Factor A immunology
Activin Receptors, Type II immunology
Angiogenesis Inhibitors immunology
Antibodies, Monoclonal, Humanized immunology
Benzalkonium Compounds chemistry
Epistaxis drug therapy
Telangiectasia, Hereditary Hemorrhagic drug therapy
Vascular Endothelial Growth Factor A antagonists & inhibitors
Subjects
Details
- Language :
- English
- ISSN :
- 1875-869X
- Volume :
- 20
- Issue :
- 3-4
- Database :
- MEDLINE
- Journal :
- Human antibodies
- Publication Type :
- Academic Journal
- Accession number :
- 22129679
- Full Text :
- https://doi.org/10.3233/HAB-2011-0244