CRISPR Therapeutics and Vertex Pharmaceuticals announced positive interim data from the first patients in the companies’ Phase I/II clinical trials of the CRISPR/Cas9 gene-editing therapy CTX001.

A European Medicines Agency panel recommended a conditional marketing approval for a gene therapy from Bluebird Bio Inc. as a genetic blood disorder treatment, setting the stage for the U.S. biotech to win the company’s first regulatory nod.