Is This Unknown Growth Stock a Buy After Its Blast Off?

Alnylam Pharmaceuticals' (NASDAQ: ALNY) stock went vertical in the past month -- up over 50% -- and there might be even more growth on the way. Sales of its top-earning medicines are booming, and breakthroughs in clinical trials have added to the enthusiasm. Alnylam has a small handful of medicines on the market, led by its drugs Onpattro and Amvuttra, which are intended to treat peripheral neuropathy caused by hereditary transthyretin amyloidosis (ATTR), which is a rare but deadly and progressively worsening heart disease.