Biotherapeutics refer to therapeutic approaches with the active substance extracted or produced from a biological source. This book is one of the first in compiling select biotherapeutics-based systems viz. mAbs, ADCs, cytokines, growth factors and nucleic acids backed by research studies. This paves the way for part 2 listing the remaining technologies with research-backed data. This research-backed book presents insights and developments for several issues that plague humanity including case studies of COVID-19.