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<p>Aceclofenac (ACF), a Non-Steroidal Anti-Inflammatory Drug (NSAID), is formulated with Soluplus® (SOLP) to enhance solubility and bioavailability. This study presents a distinct approach by utilizing Hot Melt Extrusion (HME) to prepare Aceclofenac-Soluplus® solid dispersion (ACF-SOLP), in contrast to the previously investigated nanoemulsion technique. The HME technique facilitates a uniform drug distribution within the polymer matrix, increasing ACF's dissolution rate. Different weight ratios of ACF and SOLP were assessed with 1:8 (HM4), which proved to be the optimal choice. ACF is dispersed within SOLP in its amorphous state, and HM4 exhibited a significant increase in drug release as compared to pure ACF and its physical mixture. I<i>n vivo</i> pharmacokinetic data of HM4 demonstrated a drastic improvement in the C<sub>max</sub> (7.1 ± 0.14&#xa0;µg/ml) and AUC (12.1 ± 1.30&#xa0;µg-h/ml). Further, molecular dynamics simulation revealed that the polymer is widely dispersed within the supramolecular architecture of ACF-SOLP, with ACF positioned centrally, confirming the favorable interactions between the components. Leveraging the hydrophilic nature of the SOLP, the solid dispersion demonstrated enhanced dissolution of ACF, while HME synergistically reinforced the combination. This approach presents a compelling alternative to traditional methods, unlocking new possibilities for formulating poorly soluble drugs.</p> Graphical Abstract <p></p>

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Hot Melt Extruded Aceclofenac-Soluplus® Solid Dispersion: Mechanistic View of Miscibility and Drug-Carrier Interactions for Enhanced Dissolution

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月1日

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  • Likhitha U,
  • Roushan Bharti,
  • Reema Narayan,
  • Chetan H. Mehta,
  • Usha Yogendra Nayak

摘要

Aceclofenac (ACF), a Non-Steroidal Anti-Inflammatory Drug (NSAID), is formulated with Soluplus® (SOLP) to enhance solubility and bioavailability. This study presents a distinct approach by utilizing Hot Melt Extrusion (HME) to prepare Aceclofenac-Soluplus® solid dispersion (ACF-SOLP), in contrast to the previously investigated nanoemulsion technique. The HME technique facilitates a uniform drug distribution within the polymer matrix, increasing ACF's dissolution rate. Different weight ratios of ACF and SOLP were assessed with 1:8 (HM4), which proved to be the optimal choice. ACF is dispersed within SOLP in its amorphous state, and HM4 exhibited a significant increase in drug release as compared to pure ACF and its physical mixture. In vivo pharmacokinetic data of HM4 demonstrated a drastic improvement in the Cmax (7.1 ± 0.14 µg/ml) and AUC (12.1 ± 1.30 µg-h/ml). Further, molecular dynamics simulation revealed that the polymer is widely dispersed within the supramolecular architecture of ACF-SOLP, with ACF positioned centrally, confirming the favorable interactions between the components. Leveraging the hydrophilic nature of the SOLP, the solid dispersion demonstrated enhanced dissolution of ACF, while HME synergistically reinforced the combination. This approach presents a compelling alternative to traditional methods, unlocking new possibilities for formulating poorly soluble drugs.

Graphical Abstract