Clinical pharmacokinetic study for the effect of glimepiride matrix tablets developed by quality by design concept.

Objective: Implementation of a new pharmaceutical technique to improve aqueous solubility and thus dissolution, enhancement of drug permeation, and finally formulation of a controlled release tablet loaded with glimepiride (GLMP).

Significance: Improve GLMP bioavailability and pharmacokinetics in type II diabetic patients.

Methods: Different polymers were used to enhance aqueous GLMP solubility of which a saturated polymeric drug solution was prepared and physically adsorbed onto silica.