FREMONT, Calif.--(BUSINESS WIRE)--Zosano Pharma, Inc., a privately held pharmaceutical company developing a novel transdermal delivery technology, today announced that an abstract detailing results of its Phase 2 study of Zosano PTH Patch, a proprietary transdermal patch formulation of parathyroid hormone (PTH) for the treatment of established osteoporosis, has been accepted as a late-breaking poster presentation at the 2008 American College of Rheumatology Annual Scientific Meeting. In the study to be presented, treatment with the Zosano PTH patch was significantly better than placebo in increasing BMD (bone mineral density) values measured for the lumbar spine, which was the primary endpoint. Overall, treatment with the Zosano PTH patch was very well tolerated.