Audentes Therapeutics Inc. CEO Matthew Patterson early last month characterized results with lead compound AT-132 in X-linked myotubular myopathy (XLMTM) as “unprecedented in neuromuscular disease,” and the value apparently wasn’t lost on Tokyo-based Astellas Pharma Inc., which signed a deal worth about $3 billion to take over the company. Shares of Audentes (NASDAQ:BOLD) closed at $58.93, up $30.32, or 106%, on word of the buyout – which pairs the two firms’ gene therapy expertise and is slated to close in the first quarter of next year – at a cost of $60 per share in cash.