Flexion Therapeutics announced that David Arkowitz has been named chief financial officer. Mr. Arkowitz brings more than 25 years of finance and operations leadership experience in the life sciences and biotechnology industries.   “I am delighted to have David come on board at such an important point in the company’s evolution,” said Michael Clayman, M.D., president and chief executive officer of Flexion. “David has impeccable credentials, bringing deep business acumen, outstanding leade...