Formulation and evaluation of sustained release matrix tablets of a model drug

Project Abstract

Formulation and Evaluation of Sustained Release Matrix Tablets of a Model Drug This project aims to develop and evaluate sustained-release matrix tablets of a model drug, a widely used pharmaceutical compound with a short half-life and the need for frequent administration. The formulation of sustained-release dosage forms is crucial in improving patient compliance, reducing the frequency of dosing, and maintaining consistent therapeutic drug levels in the body. Matrix systems, in particular, offer a simple and cost-effective approach to achieving controlled drug release, making them an attractive option for pharmaceutical manufacturers. The primary objective of this study is to design and optimize a sustained-release matrix tablet formulation of the model drug using various hydrophilic and hydrophobic polymers as release-controlling agents. The selection of appropriate polymers, their concentrations, and the understanding of their influence on drug release kinetics are critical factors in developing a successful sustained-release system. The project will begin with a comprehensive literature review to identify the physicochemical properties of the model drug, the characteristics of potential polymeric carriers, and the current state of the art in sustained-release matrix tablet formulations. This information will guide the selection of suitable polymers, excipients, and the formulation development process. The experimental phase of the project will involve the preparation of sustained-release matrix tablets using the direct compression technique. A factorial design approach will be employed to systematically investigate the effects of different polymer types and concentrations on the drug release profile, physical properties, and stability of the matrix tablets. Factors to be evaluated may include the ratio of hydrophilic to hydrophobic polymers, the total polymer content, and the compression force used during tableting. The prepared matrix tablets will undergo a series of in-vitro evaluations, including weight variation, thickness, hardness, friability, drug content uniformity, and in-vitro drug release studies. The drug release kinetics will be analyzed using various mathematical models, such as zero-order, first-order, Higuchi, and Korsmeyer-Peppas, to elucidate the underlying release mechanisms and identify the most suitable model for the formulation. Furthermore, the project will assess the physical and chemical stability of the optimized sustained-release matrix tablet formulation under accelerated storage conditions, in accordance with the ICH guidelines. This evaluation will ensure the long-term performance and quality of the developed product. The successful completion of this project will contribute to the development of a robust and reproducible sustained-release matrix tablet formulation of the model drug, with the potential to improve patient adherence and therapeutic outcomes. The findings may also provide valuable insights into the formulation design and optimization strategies for other drugs requiring controlled-release delivery systems. Additionally, the project will enhance the understanding of the relationships between polymer characteristics, formulation variables, and the resulting drug release profiles, which can be applied to the development of other sustained-release matrix tablet products.

Project Overview