Sanofi's decision not to opt-in to the development and commercialization of ultra-orphan therapy lumasiran is considered a positive for the product's originator, Alnylam Pharmaceuticals Inc., but there are concerns that the French firm has now declined options on several of Alnylam's investigational RNA interference (RNAi) products that might have supported the biotech as it prepares its strategy for the potential approval and launch of lead product, patisiran, for the treatment of hereditary ATTR amyloidosis, in mid-2018.
Alnylam, which now has global rights to lumasiran, has pledged to start Phase III trials with the primary