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.

Stem cell biotech firm Novoheart Holdings Inc., of Vancouver, British Columbia, is partnering with Astrazeneca plc, of Cambridge, U.K., to co-develop a human-specific in vitro, functional model of heart failure with preserved ejection fraction.

Heart failure with preserved ejection fraction (HFpEF), also known as diastolic heart failure, accounts for roughly half of all heart failure cases worldwide. The condition, which occurs when the ventricles do not relax as they fill with blood following heart muscle contractions, is especially common in elderly women, striking up to 10% of those over 80 years old. Now stem cell biotech firm Novoheart Holdings Inc., of Vancouver, British Columbia, is partnering with Astrazeneca plc, of Cambridge, U.K., to co-develop a human-specific in vitro, functional model of HFpEF. The goal is to give drug researchers critical clues of a drug candidate’s efficacy before it is tested in patients.

Baxter International Inc., of Deerfield, Ill., has entered an agreement to acquire Seprafilm adhesion barrier and related assets from Paris-based Sanofi SA. The expected price at closing is $350 million, with the transaction anticipated to wrap up in the first quarter of 2020.