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Recent Advances in Drug Delivery and Formulation


ISSN (Print): 2667-3878
ISSN (Online): 2667-3886

Research Article

Crisaborole-Enthused Glycerosomal Gel for an Augmented Skin Permeation

Author(s): Ragini Singh, Anshu singh, Dipti Srivastava*, Zeeshan Fatima* and Rammani Prasad

Volume 18, Issue 2, 2024

Published on: 24 April, 2024

Page: [120 - 130] Pages: 11

DOI: 10.2174/0126673878283299240418112318

Price: $65


Background: Crisaborole (CB), a boron-based compound, is the first topical PDE4 inhibitor to be approved by the US Food and Drug Administration (2016) for the treatment of Atopic Dermatitis. It is marketed as a 2% ointment (Eucrisa, Pfizer). However, CB is insoluble in water; therfore, CB glycersomes were formulated to enhance its permeation flux across the skin.

Objective: We developed a glycerosomal gel of CB and compared its in vitro release and permeation flux with the 2% conventional ointment.

Methods: Glycerosomes were prepared using thin film hydration method employing CB, soya phosphatidylcholine, and cholesterol. The formed film was further hydrated employing a mixture of phosphate buffer pH 7.4 /glycerin solution containing varying percentages (20,30, 40, and 50 %) of glycerol. The glycerosomes obtained were characterized by their size, polydispersity index (PDI), and Zeta potential. The entrapment efficiency of the optimized formulation (F1) was determined. The in vitro release of F1 was compared with its 2% conventional ointment. F1 was further incorporated into carbopol 934 P gel. The gel was characterized by pH, viscosity, spreadability, and drug content. The permeability flux of the glycerosomal gel was compared with its 2% conventional ointment.

Results: The optimized CB glycerosomes had a vesicle size of 137.5 ± 50.58 nm, PDI 0.342, and zeta potential -65.4 ± 6.75 mV. CB glycerosomal gel demonstrated a 2.13-fold enhancement in the permeation flux.

Conclusion: It can thereby be concluded that glycerosomes can be an effective delivery system to enhance the penetration of CB across the skin.

Keywords: Crisaborole, glycerosome, glycerol, entrapment efficiency, in vitro drug release, permeation flux.

Graphical Abstract

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