Perhaps the words, "It's been a long time coming", which happen to also comprise much of the chorus for an old Sam Cooke song, are appropriate when describing the latest news coming out of GI Dynamics (Lexington, Massachusetts) this week. The med-tech firm, which has been relatively quiet over the last few months, reported on Thursday that it had received FDA conditional approval for a pivotal clinical trial for the EndoBarrier Gastrointestinal Liner. The FDA's measure is an important milestone in the continued development of the product, the company said.