Zosano Pharma Corporation, a clinical stage biopharmaceutical company, focuses on providing therapeutics and other bioactive molecules to patients suffering from migraine using its transdermal microneedle system. Its lead product candidate is Qtrypta (M207), a proprietary formulation of zolmitriptan used for the acute treatment of migraine. The company was founded in 2006 and is headquartered in Fremont, California. On June 1, 2022, Zosano Pharma Corporation filed a voluntary petition for reorganization under Chapter 11 in the U.S. Bankruptcy Court for the District of Delaware.