Book excerpt: Since 1972, which marks the invention of recombinant engineering, more than 500 therapeutic proteins have been approved for clinical use. Today, biological drugs constitute almost 70% of all new drugs and have a biological origin. The first edition of this book dealt with biosimilars, and this edition (i.e., the second edition) focuses on new drugs, yet limits to therapeutic proteins. Newer technologies for drug development represent the updated topics in the book and include repur-posing, AI- driven identification of newer designs, novel expression systems, manufacturing using these systems, rapidly changing regulatory pathways, and legal hurdles. This edition discusses how to identify, develop, manufacture, and take multibillion dollar products to market within the shortest possible time. Features: Complete and thorough coverage of the regulatory and technological challenges of developing generic therapeutic proteins Comprehensive, discovery to market, newer technologies, regulatory planning and IP hurdles are included that are not found elsewhere Expanded volume that must be in the hands of every company interested in biological drugs, including the mRNA-based biopharmaceutical companies fast appearing on the market Discusses how to identify, develop, manufacture, and take multibillion dollar products to market in the shortest possible time Renowned author and entrepreneur in the field of drug discovery and production