Novartis del-desiran fails late-stage myotonic dystrophy trial
Novartis said del-desiran, an experimental RNA medicine from its Avidity $12B buyout, failed a late-stage trial in myotonic dystrophy type 1. The drug did not outperform placebo on a hand-muscle relaxation measure. The company plans to evaluate the full dataset for the next development steps, while analysts warn the setback could raise doubts about the platform and dealmaking.