The U.S. National Institutes of Health contains links to, presumably, all federally and privately supported CF clinical trials that are currently recruiting volunteers. The individual pages describe the study, list the sponsoring institution, trial protocols, prospective enrollment, dates, and inclusion/exclusion criteria. The site is part of ClinicalTrials.gov, a searchable database. To limit your search geographically, type in the search field “cystic fibrosis, Chicago”.
October 17, 2006