VALENCIA, Calif.--(BUSINESS WIRE)--MannKind Corporation (Nasdaq:MNKD) announced today that it has begun clinical development of a next-generation inhalation system to optimize the delivery of drug powders based on the proprietary Technosphere® technology platform. The inhalation system is as small as a whistle and designed to be easy-to-use, discreet and patient-friendly when used with therapies such as the investigational ultra rapid acting insulin AFRESA® (insulin human [rDNA origin]) Inhalation Powder. The delivery system technology can also be used with other therapeutic proteins.