It’s back to the drawing broad for Vertex Pharmaceuticals Inc. and its efforts to develop treatments for the rare disease alpha-1-antritrypsin deficiency (AATD), after its VX-864 produced disappointing results in a phase II trial.
The positive interim 24-week liver biopsy results from Arrowhead Pharmaceuticals Inc.’s open-label phase II of its RNAi-based liver-targeted therapeutic, ARO-AAT, came as a surprise to the developers.
