ArticleDrug delivery and translational research2025
Quality by design optimization of formulation variables and process parameters for enhanced transdermal delivery of nanosuspension.
Article in Drug delivery and translational research, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
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3 authors.
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Abstract
This investigation aims to fabricate, characterize, and optimize organogel containing andrographolide nanosuspension to enhance transdermal drug delivery into and across the skin in vitro. We identified the critical material attributes (CMAs) and critical process parameters (CPPs) that impact key characteristics of andrographolide nanosuspension using a systematic quality-by-design approach. We prepared andrographolide nanosuspension using the wet milling technique and evaluated various properties of the formulations. The CMAs were types and concentrations of polymers, types and concentrations of surfactants, drug concentration, and lipid concentration. The CPPs were volume of milling media and milling duration. Mean particle size, polydispersity index, encapsulation efficiency, and drug loading capacity as critical quality attributes were selected in the design for the evaluation and optimization of the formulations. Furthermore, we developed and evaluated organogel formulation to carry andrographolide nanosuspension 0.05% w/w. Drug release and permeation studies were conducted to assess the drug release kinetics and transdermal delivery of andrographolide. We presented the alteration in the average particle size, polydispersity index, encapsulation efficiency, drug-loading capacity, and drug release among various formulations to select the optimal parameters. The permeation study indicated that organogel delivered markedly more drug into the receptor fluid and skin tissue than DMSO gel (n = 3, p < 0.05). This enhancement in transdermal drug delivery was demonstrated by cumulative drug permeation after 24 h, steady-state flux, permeability coefficient, and predicted steady-state plasma concentration. Drug quantity in skin layers, total delivery, delivery efficiency, and topical selectivity were also reported. Conclusively, andrographolide nanosuspension-loaded organogel significantly increased transdermal drug delivery in vitro.
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