FREMONT, Calif.--(BUSINESS WIRE)--Zosano Pharma, Inc., a privately held pharmaceutical company developing products using a novel transdermal delivery technology, today presented positive results from its phase 2 study of the ZP-PTH rapid delivery patch for the treatment of osteoporosis at the 8th International Symposium on Osteoporosis in Washington, D.C. The study was a randomized, multi-center, double-blind, multi-dose trial designed to determine safety and efficacy of the ZP-PTH rapid delivery patch for the treatment of osteoporosis. Using Zosano’s unique transdermal technology being developed as an alternative to daily injections, ZP-PTH delivers PTH 1-34, teriparatide (PTH), a compound proven to stimulate formation of new bone and reduce the risk of fractures.