Diphtheria Antitoxin Production and Procurement Practices and Challenges

Treatment of respiratory diphtheria requires prompt administration of equine diphtheria antitoxin (DAT) to neutralize circulating toxin. We conducted surveys of key procurement agencies and manufacturers currently engaged in DAT manufacturing or procurement, along with key informant interviews with developers of monoclonal antibodies. Our findings indicate that prices and availability of DAT vary and that prediction of demand is challenging for both manufacturers and procurement agencies. Substantial concerns were raised over the inability to obtain enough DAT to respond to increasing global outbreaks. Monoclonal antibody developers noted financial challenges in advancing their clinical and manufacturing progress.