Journal
DRUG DESIGN DEVELOPMENT AND THERAPY
Volume 12, Issue -, Pages 795-813Publisher
DOVE MEDICAL PRESS LTD
DOI: 10.2147/DDDT.S158018
Keywords
transethosomes; ethosomal nanocarriers; colchicine; factorial design; skin permeation; rheology
Categories
Funding
- Universiti Sains Malaysia [1001/PFarmasi/811285]
- Universiti Sains Malaysia, Penang, Malaysia
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Introduction: Colchicine is used for the treatment of gout, pseudo-gout, familial Mediterranean fever, and many other illnesses. Its oral administration is associated with poor bioavailability and severe gastrointestinal side effects. The drug is also known to have a low therapeutic index. Thus to overcome these drawbacks, the transdermal delivery of colchicine was investigated using transethosomal gels as potential carriers. Methods: Colchicine-loaded transethosomes (TEs) were prepared by the cold method and statistically optimized using three sets of 2(4) factorial design experiments. The optimized formulations were incorporated into Carbopol 940 (R) gel base. The prepared colchicine-loaded transethosomal gels were further characterized for vesicular size, dispersity, zeta potential, drug content, pH, viscosity, yield, rheological behavior, and ex vivo skin permeation through Sprague Dawley rats' back skin. Results: The results showed that the colchicine-loaded TEs had aspherical irregular shape, nano-metric size range, and high entrapment efficiency. All the formulated gels exhibited non-Newtonian plastic flow without thixotropy. Colchicine-loaded transethosomal gels were able to significantly enhance the skin permeation parameters of the drug in comparison to the non-ethosomal gel. Conclusion: These findings suggested that the transethosomal gels are promising carriers for the transdermal delivery of colchicine, providing an alternative route for drug administration.
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