152 - Challenges and Strategies in Peptide Drug Synthesis and Manufacturing (S11E2)

This episode delves into the often unseen complexities of manufacturing peptide therapeutics at a large scale. The initial focus is on the challenges involved in synthesizing these molecules, specifically the difficulties in ensuring every link is correct and maintaining high purity across large batches. The discussion explores solid-phase peptide synthesis (SPPS), the most common method, and the scale-up hurdles associated with it, including the quality of the solid support and the sheer volume of chemicals required. It also touches on alternative methods like liquid phase synthesis and the potential of microwave assistance.The conversation then shifts to the broader manufacturing process, emphasizing the critical need for airtight quality control and cGMP compliance. The importance of meticulous documentation, proper facility design, and well-trained personnel are highlighted, along with the concept of process validation. The regulatory validation process, including submitting data for approval from agencies like the FDA, is also explored, discussing what companies have to submit and what they need to include. Finally, the need for extensive stability studies and, for generics, bioequivalence studies, is emphasized.