Targacept Announces Negative Top-Line Results from Exploratory Study of TC-6499 in Diabetic Gastroparesis

Targacept, Inc.

today announced top-line results from a Phase 1/2 exploratory study of TC-6499 as a treatment for diabetic gastroparesis, a chronic disorder that slows or stops the passage of food from the stomach to the small intestine. In the trial, TC-6499 did not meet the primary endpoint of the study, change in gastric emptying half-time (BT_t1/2), as measured by a carbon (13C) labeled gastric emptying breath test, relative to placebo. "The results we saw do not support the prior signal we had seen suggesting that TC-6499 might increase gastric motility in this patient population," said Dr. Stephen A. Hill, Targacept's President and Chief Executive Officer. "While TC-6499 did demonstrate a positive safety and tolerability profile in this study, these results do not warrant further development of TC-6499 in this therapeutic area."