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Yesterday evening, Adolor (ticker: ADLR) announced top-line results of the Phase 3 study 14CL314 (Study 314) of Entereg in postoperative ileus (POI). The results showed a statistically significant improvement in the primary endpoint of time to recovery of gastrointestinal (GI) function following bowel resection surgery. The mean time to recovery in the Entereg group was about 20 hours sooner than placebo with a p-value less than 0.001. Entereg also showed statistically significant improvements in the secondary endpoints, including time to discharge order written (NYSE:DOW), which showed an 18 hour improvement.

Study 314 is the fifth Entereg Phase 3 trial conducted in POI. Previous studies gave confounding results with some (studies 302 and 308) missing the primary endpoint. The mixed Phase 3 results prompted the FDA to issue an approvable letter in July 2005. According to Adolor’s website:

“In the Letter, the FDA indicated that, before the application may be approved, it will be necessary to provide additional proof of efficacy to support use of Entereg following bowel resection surgery. The FDA indicated that this may be achieved by demonstrating statistically significant results in at least one additional clinical study, and indicated that this could be addressed with positive results from Adolor's ongoing Study 314. The FDA also indicated that the company must provide justification that the median reduction in time to gastrointestinal (GI) recovery seen in bowel resection patients treated with Entereg is clinically meaningful.

Source: Does Adolor’s Announcement of Positive Entereg Data Assure FDA Approval? (ADLR)