Oral Insulin: Myth or Reality.

Area of Science:

• Biomedical Engineering
• Pharmaceutical Sciences
• Endocrinology

Background:

• Diabetes Mellitus (DM) is a global health crisis characterized by hyperglycemia, with Type-1 Diabetes Mellitus (T1DM) often managed by Multiple Daily Insulin (MDI) injections.
• Current insulin therapy, primarily subcutaneous injections, faces challenges in patient compliance and quality of life.
• Oral insulin delivery presents an attractive alternative but is hindered by poor epithelial permeability and enzymatic degradation in the gastrointestinal tract.

Purpose of the Study:

• To review recent advancements in oral insulin delivery formulations for T1DM.
• To analyze the effectiveness, applications, and limitations of various oral insulin technologies.
• To highlight key lessons and implications from studies on oral insulin formulations.

Main Methods:

• Review of existing literature on novel oral insulin delivery systems.
• Analysis of technologies including liposomes, microspheres, nanoparticles, mouth dissolving strips, and sprays.
• Evaluation of studies focusing on oral and pulmonary routes for insulin administration.

Main Results:

• Exploration of diverse strategies to enhance oral insulin bioavailability.
• Identification of promising next-generation therapies for T1DM.
• Assessment of the progress and challenges in achieving targeted insulin delivery via oral routes.

Conclusions:

• Oral insulin delivery formulations are advancing, offering potential improvements over traditional MDI.
• Further research and development are crucial to overcome existing limitations and optimize effectiveness.
• Successful oral insulin therapies could significantly enhance the quality of life for individuals with Insulin Dependent Diabetes Mellitus (IDDM).