The development of a commercial market for gene therapies is unfolding in real time, and progress remains slow. Several developers of new gene therapies – bluebird bio, Vertex Pharmaceuticals Incorporated, Sarepta Therapeutics, Inc. and BioMarin Pharmaceutical Inc. – updated investors on launch progress in connection with first quarter sales and earnings results.
Complex administration and reimbursement of the expensive therapeutics remain barriers to broad uptake, but a growing pipeline of patients are...








