Thank you for raising this. I think the reason this particular drug didn't make economic sense was touched on in the article but not highlighted: the drug appr

Thank you for raising this. I think the reason this particular drug didn't make economic sense was touched on in the article but not highlighted: the drug approval process is designed for drugs, not new technology. The price of a new gene therapy technology applied to a small pool of people can't justify it's cost of bring to market. There are plenty of cases where drug company's inflating their margins using phantasmal threats of "R&D" costs on a condition that effects millions, but in this case it seems like the economics were unfortunately not feasible.