Formulation Development of Mucoadhesive Microparticle-Laden Gels for Oral Mucositis: An In Vitro and In Vivo Study

Sakurai, Hiroomi; Ikeuchi-Takahashi, Yuri; Kobayashi, Ayaka; Yoshimura, Nobuyoshi; Ishihara, Chizuko; Aomori, Tohru; Onishi, Hiraku

doi:10.3390/pharmaceutics12070603

Cited by 3 publications

(2 citation statements)

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“…The mucoadhesive properties of tSD/CsA and ASD/CsA were evaluated using the mucin disk method reported previously [ 16 ]. CsA amounts of SD/CsA and tSD/CsA were higher than that of amorphous CsA, as evidenced by 2- and 3-fold residual amounts of CsA, respectively ( Figure 3 ).…”

Section: Resultsmentioning

confidence: 99%

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Cyclosporine A-Loaded Ternary Solid Dispersion Prepared with Fine Droplet Drying Process for Improvement of Storage Stability and Oral Bioavailability

et al. 2023

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This study aimed to develop a cyclosporine A (CsA)-loaded ternary solid dispersion (tSD/CsA) to improve the storage stability of a solid dispersion (SD) system and the oral absorbability of CsA. Hydroxypropyl cellulose (HPC) and hydroxypropyl methylcellulose acetate succinate (HPMCAS) were selected as carrier materials of tSD, and tSD/CsA was prepared with a fine droplet drying process, a powderization technology that employs an inkjet head. The physicochemical properties of tSD/CsA were evaluated in terms of morphology, storage stability, dissolution behavior, and mucoadhesive property. After the oral administration of CsA samples (10 mg-CsA/kg) to rats, the plasma concentration of CsA was monitored to estimate oral absorbability. tSD/CsA comprised uniform shriveled particles with a diameter of 3.4 mm and span factor of 0.4, which is a parameter to estimate the particle size distribution. Although HPC-based binary SD showed marked aggregation of the particles after storage under 40 °C/75% relative humidity, there were no significant aggregations of tSD/CsA, due to the relatively low hygroscopic property of HPMCAS. The pH-dependent release of CsA with improved dissolution was observed in tSD/CsA. In the in vitro mucoadhesive evaluation using a mucin disk, tSD/CsA exhibited a better mucoadhesive property than HPC-based SD, possibly leading to prolonged retention of tSD particles in the gastrointestinal tract after oral administration. Orally-dosed tSD/CsA in rats resulted in significantly improved oral absorption of CsA, as evidenced by a 27-fold higher bioavailability than amorphous CsA. tSD/CsA may be a promising dosage option to improve the storage stability of a SD system and the biopharmaceutical properties of CsA.

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Section: Resultsmentioning

confidence: 99%

“…The mucin disk method was used to evaluate the mucoadhesive properties of prepared formulations according to the reported method with slight modifications [ 16 ]. Briefly, 400 μL of 10% mucin solution was spread on a 25 mm diameter filter paper, and the paper was dried at ambient temperature.…”

Section: Methodsmentioning

confidence: 99%