Allurion Technologies has launched its ENLIGHTEN clinical study of Elipse, a weight loss balloon swallowed via capsule and filled with liquid through a catheter, thereby avoiding surgery for patients who seek a low cost treatment option, or may have additional health complications excluding surgery. The safety and efficacy randomized and sham-controlled trial will include 400 patients across 12 U.S. sites. Elipse received CE mark in 2015.