Results from a Phase 2 clinical trial assessing Regeneron Pharmaceuticals (REGN +0.7%) and Sanofi's (SNY +0.7%) DUPIXENT (dupilumab) in adult patients with moderate-to-severe eosinophilic esophagitis (EE) showed a treatment benefit. The data were presented at the World Congress of Gastroenterology in Orlando, FL.
The primary endpoint was a scale of swallowing difficulty called SDI score. At week 10, patients receiving dupilumab reported a significant improvement in the ability to swallow as measured by a three-point reduction (45% improvement) in SDI score, much better than placebo's 19% improvement (1.3-point reduction in SDI score) (p=0.0304).
Dupilumab has Orphan Drug status for EE. It was approved in May for eczema.
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