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Abstract Title:

Development of a Solid Formulation Containing a Microemulsion of a NovelExtract with Nematocidal Activity for Oral Administration.

Abstract Source:

Pharmaceutics. 2020 Sep 14 ;12(9). Epub 2020 Sep 14. PMID: 32937773

Abstract Author(s):

Ines Perez-Roman, Filip Kiekens, Damian Cordoba-Diaz, Juan Jose Garcia-Rodriguez, Manuel Cordoba-Diaz

Article Affiliation:

Ines Perez-Roman

Abstract:

BACKGROUND: Intestinal nematode infections are usually treated with benzimidazole drugs, but the emergence of resistance to these drugs has led to an increasing demand of new anthelmintic strategies. A new microemulsion formulation (ME) consisting of anextract with proven nematocidal efficacy was previously developed. The aim of our study is to implement a D-optimal mixture design methodology to increase the amount of a silica material (loaded with this ME) in a tablet formulation, considering its tensile strength and disintegration time.

METHODS: 16 experiments or combinations of the 6 tablet components (loaded silica, microcrystalline cellulose, polyvinylpyrrolidone, croscarmellose, Syloid244 FP and magnesium stearate) were assessed. Tensile strength and disintegration time models were developed, and an optimization process was carried out.

RESULTS: Tensile strength was improved by increasing the polyvinylpyrrolidone content, while croscarmellose decreased the disintegration time. The optimized powder mixture contains 49.7%/of the loaded silica material. A compression force of 12 kN was applied to the powder mixture to form tablets with a tensile strength of 2.0 MPa and a disintegration time of 3.8 min.

CONCLUSIONS: Our results show that D-optimal mixture designs provide a promising approach to formulate liquid-loaded silica materials.

Study Type : Animal Study

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