Preparation of Microsponge Drug Delivery System (MSDDS) Followed by a Scale-Up Approach

AAPS PharmSciTech. 2024 Jul 12;25(6):162. doi: 10.1208/s12249-024-02874-y.

Abstract

In 1987, Won invented the solid-phase porous microsphere (MS), which stores bioactive compounds in many interconnected voids. Spherical particles (5-300 μm), MS, may form clusters of smaller spheres, resulting in many benefits. The current investigation focussed on gel-encased formulation, which can be suitable for dermal usage. First, quasi-emulsion (w/o/w) solvent evaporation was used to prepare 5-fluorouracil (5 FU) MS particles. The final product was characterized (SEM shows porous structure, FTIR and DSC showed drug compatibility with excipients, and gel formulation is shear-thinning) and further scaled up using the 8-fold method. Furthermore, CCD (Central Composite Design) was implemented to obtain the optimized results. After optimizing the conditions, including the polymer (600 mg, ethyl cellulose (EC), eudragit RS 100 (ERS)), stirring speed (1197 rpm), and surfactant concentration (2% w/v), we achieved the following results: optimal yield (63%), mean particle size (152 µm), drug entrapment efficiency (76%), and cumulative drug release (74.24% within 8 h). These findings are promising for industrial applications and align with the objectives outlined in UN Sustainable Development Goals 3, 9, and 17, as well as the goals of the G20 initiative.

Keywords: 5-fluorouracil; Face-centred central composite design matrix; Microsponge-incorporated gel and scale-up.

MeSH terms

  • Acrylic Resins / chemistry
  • Cellulose / analogs & derivatives
  • Cellulose / chemistry
  • Chemistry, Pharmaceutical / methods
  • Drug Carriers / chemistry
  • Drug Delivery Systems* / methods
  • Drug Liberation*
  • Emulsions / chemistry
  • Excipients / chemistry
  • Fluorouracil* / administration & dosage
  • Fluorouracil* / chemistry
  • Gels / chemistry
  • Microspheres*
  • Particle Size*
  • Polymers / chemistry
  • Porosity
  • Solvents / chemistry
  • Surface-Active Agents / chemistry

Substances

  • Fluorouracil
  • Emulsions
  • Cellulose
  • Polymers
  • Excipients
  • ethyl cellulose
  • Solvents
  • Surface-Active Agents
  • Eudragit RS
  • Acrylic Resins
  • Drug Carriers
  • Gels