Oral controlled release technology for peptides: status and future prospects

Area of Science:

• Pharmaceutical Sciences
• Biotechnology
• Drug Delivery

Background:

• Significant efforts in academic and commercial labs have not yielded major breakthroughs in oral peptide and protein formulation.
• Key barriers include poor intrinsic permeability, enzymatic degradation, rapid clearance, and stability issues.
• Traditional pharmaceutical approaches successful for small molecules have not translated effectively to peptides and proteins.

Purpose of the Study:

• To review the challenges and potential strategies for developing oral peptide and protein formulations.
• To highlight the need for compound-specific approaches in oral delivery system design.
• To emphasize the therapeutic potential of emerging peptide and protein drug candidates.

Main Methods:

• Review of existing literature on peptide and protein formulation challenges.
• Analysis of pharmaceutical approaches and their limitations for oral delivery.
• Examination of successful case studies, such as cyclosporin formulations.
• Discussion of future directions in formulation and delivery system design.

Main Results:

• Major breakthroughs in oral peptide and protein formulation have been limited.
• Existing pharmaceutical approaches face significant hurdles when applied to peptides and proteins.
• Oral formulations are likely to be highly compound-specific.
• The therapeutic potential of peptides and proteins remains high, driven by biotechnology advancements.

Conclusions:

• Overcoming barriers to oral peptide and protein delivery requires innovative strategies.
• A systematic merger of formulation and delivery systems is crucial for maximizing absorption.
• Successful oral peptide and protein formulations will likely be highly tailored to individual compounds.
• Continued research is essential to unlock the therapeutic benefits of these molecules.