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Comparative Assessment of Efficacy and Safety Potential of Multifarious Lipid Based Tacrolimus Loaded Nanoformulations

Comparative Assessment of Efficacy and Safety Potential of Multifarious Lipid Based Tacrolimus Loaded Nanoformulations

Sanyog Jain, Ramu Addan, Varun Kushwah, Harshad Harde, Rahul R Mahajan

Int J Pharm. 2019 May 1;562:96-104.

PMID: 30902706

Abstract:

The present work reports the development, optimization and characterization of novel lipid based nanoformulations viz., Liquid crystalline nanoparticles (LCNP), solid lipid nanoparticles (SLN) and nanostructured lipid carriers (NLC) and liposomes loaded with Tacrolimus (Tac) for topical delivery. Different nanoformulations were developed after screening lipids and suitable surfactants depending upon emulsification ability. The various nanoformulations were then optimized (to achieve higher entrapment efficacy, lower particle size, PDI and zeta potential), characterized and loaded into gel. The gels loaded with nanoformulations were also characterized depending upon rheology and viscosity. The gels were analyzed for in vitro drug release, HaCaT cell lines studies and skin permeation studies. The in vivo efficacy studies were carried out using mouse tail model and skin irritation studies using Draize patch test and measurement of TEWL. The developed nanoformulations showed optimum particle size (<200 nm), polydispersity index (PDI < 0.3), zeta potential (≥-10 mV) and higher entrapment efficiency (>85%). The nanoformulations showed higher penetration of Tac into skin. Tac-LCNP, Tac-SLN, Tac-NLC and Tac-liposomes loaded gels showed 14, 11.5, 12.5 and 3.7 folds increment in dermal bioavailability respectively, in comparison to free Tac loaded gel and 2.5, 2 and ∼2 folds augmentation in dermal bioavailability respectively as compared to Tacroz™ Forte. In case of Tac-liposomes, the dermal bioavailability was lower as compared with the marketed formulation, Tacroz™ Forte. Despite, the increased bioavailability into the skin, the developed nanoformulations showed no significant skin irritation. The above mentioned nanoformulations were able to achieve greater penetration of Tac into the skin as compared to marketed ointment of Tac, Tacroz™ Forte.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP540103-A	Cetyl palmitate		540-10-3	Price

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