Enanta RSV drug fails a Phase 2 test, but studies continue in higher-risk patients

An antiviral that Enanta Pharmaceuticals is developing for respiratory syncytial virus infection failed to beat a placebo in its first Phase 2 test. But the biotech notes that these study participants weren’t very sick and may have recovered on their own, so it’s now pinning its hopes on ongoing studies in higher-risk groups, such as transplant patients.