PFO Closure: Challenges and Opportunities
Executive Summary
Over the past several years, device manufacturers have introduced a number of PFO closure devices in Europe, but conducting randomized trials to gain US market approval has proven to be a much more difficult endeavor. Companies have experienced numerous delays and setbacks in both their stroke and migraine programs. The good news: setbacks for some could also boost randomized migraine studies still ongoing by other competitors in this field.