Once upon a time, Intarcia Therapeutics Inc. was a biotech unicorn valued at $3.5 billion. Its allure was its implantable Medici drug delivery system that consisted of a mini pump about the size of a matchstick. But a unicorn’s life is never completely charmed. Intarcia faced obstacles along the way – two complete response letters from the U.S. FDA and the denials of three formal dispute resolution requests. Now it looks like this story won’t have a happy ending.