OneWorld Health was a 501(c)(3) nonprofit drug development organization founded in San Francisco in 2000 by Victoria Hale. In December 2011, OneWorld Health became a drug development program of PATH (global health organization), an international nonprofit organization that transforms global health through innovation. PATH’s Drug Development program is working to develop and ensure availability and accessibility of safe and effective new medicines for diseases disproportionately affecting people in resource-limited settings. It works with partners around the globe to identify potential new medicines for diseases affecting vulnerable populations, assess the safety and effectiveness of investigational medicines, honor international ethical standards for research, collaborate to manufacture and distribute new medicines, and ensure that medicines will be affordable and available for distribution. PATH’s current drug development efforts are focused on targeting diarrheal disease, ensuring the supply of malaria treatments, and developing a new tool to stop the spread of HIV. More information about these efforts is available at the program website.