WASHINGTON – The nonopioid pain reliever alvimopan significantly decreased the incidence of postoperative ileus and shortened hospital stay among bowel surgery patients who took the drug as part of an existing accelerated recovery program.
Compared with patients who took placebo, those who took alvimopan left the hospital about 1 day sooner. In addition to the decrease in ileus, patients experienced a quicker return to normal bowel function, including time to first flatus and first bowel movement, Dr. Robert Moesinger said at the annual clinical congress of the American College of Surgeons.
"Alvimopan augmented the already improved outcomes we had seen with our validated recovery pathway, in both laparoscopic- and open-surgery patients," said Dr. Moesinger of Intermountain Healthcare, Salt Lake City. "Given the very diverse nature of our health care system, with multiple types of hospitals and surgeons, we feel these data are widely applicable and we are very comfortable recommending its routine use for patients having elective bowel surgery."
Dr. Robert Moesinger
Dr. Moesinger and his colleagues conducted a randomized, placebo-controlled trial of alvimopan in 248 such patients. Those taking the study drug received 12 mg before surgery; after surgery, they received 12 mg twice a day until discharge.
The primary endpoint was postoperative length of stay. Secondary endpoints included the incidence of postoperative ileus, time to first flatus and first bowel movement, tolerance of solid food, total hospital and pharmacy costs, nasogastric tube reinsertion, 30-day readmission rates, and anastomotic leak.
The patients’ mean age was 61 years. There were no significant differences in any of their baseline demographics or clinical characteristics. Because of a statistical fluke, the placebo group did contain significantly more open-surgery patients than the alvimopan group (34% vs. 20%). The rest of the patients had laparoscopic surgery. Patients had an average of nine doses of the study drug.
The mean length of stay was 4 days in the alvimopan group and 5 in the placebo group – a significant difference.
There was significantly less postoperative ileus in the alvimopan group (2% vs. 10%). Significantly fewer of those taking the study drug needed a nasogastric tube reinserted (2% vs. 9%). The rates of 30-day readmission, reoperation, and anastomotic leak were similar in both groups. The mean time to first bowel movement was about 1 day sooner in the alvimopan group.
The median hospital cost was $10,832 for the alvimopan group and $11,924 for the placebo group – a significant difference. The median total pharmacy cost was $476 vs. $501; this difference was not significant.
Because Cubist Pharmaceuticals, which makes alvimopan, provided the study drug at no cost, the overall cost analysis cannot be considered complete, Dr. Moesinger noted. However, the pharmacy cost for a similar course of the drug would be $84. Figuring that cost into the total saved for each admission ($1,686) still yielded a net financial benefit of $930 per patient, he said.
Dr. Moesinger had no financial disclosures.