Regenerative medicine is rapidly moving from the lab to the clinic, but as life-saving therapies advance to the marketplace, there are questions about whether the U.S. Food and Drug Administration needs to modernize its regulatory approach to gene and cell therapies. We spoke to Michael Werner, executive director of the Alliance for Regenerative Medicine, about the state of the industry, the regulatory environment today, and whether it will ultimately be payers who are more demanding of data to convince them of the worth of a therapy.