This new 12-month analysis of the prospective, randomized, multicenter clinical trial known as TEMPO also showed that all 21 patients in the original control arm who had received maximum-dose proton pump inhibitor (PPI) therapy for the first six months of the trial crossed over to undergo the TIF procedure. This group achieved similar positive six-month results to the patients in the original treatment arm.

The new 12-month analysis was presented by principal investigator, George Washington University School of Medicine and Health Sciences surgeon Dr Karim S Trad, as part of an American Gastroenterological Association (AGA) research forum earlier today at Digestive Disease Week (DDW) 2014 (Abstract #724), taking place here through May 6.

Dr Trad noted that this study confirms that in well-selected GERD patients with incomplete symptom control on high-dose PPI therapy, the TIF procedure is capable of dramatically and durably eliminating GERD symptoms, healing esophagitis and improving quality of life.

"This incisionless, endoluminal approach offers a subgroup of patients who are dissatisfied with PPIs a less invasive option than current surgical approaches, with minimal or no side-effects. We are planning to follow our study patients for up to three years," Dr Trad added.

In original treatment arm (n-39), 77% of patients reported a global elimination of daily troublesome regurgitation and atypical symptoms 12 months following the TIF procedure. Esophagatis, or inflammation of the esophagus, remained healed in 100% of the patients in the original treatment arm.

At the end of the first six months of the study, only 5% (1/21) of patients in the control group who received maximum-dose PPI therapy reported global elimination of regurgitation and atypical symptoms; this proportion increased to 67% (14/21) six months after these patients crossed over and had the TIF procedure (P < 0.001). Additionally, 71% (15/21) of the cross-over patients were completely off PPIs six months following the TIF procedure.

The primary outcome of TIF versus Medical PPI Management of Refractory GERD symptoms (TEMPO) trial was elimination of daily troublesome regurgitation and atypical symptoms as evaluated by two validated instruments — Reflux Disease Questionnaire and Reflux Symptom Index; secondary outcomes included healing of esophagitis, normalization of esophageal acid exposure and PPI use in the TIF treated patients at 6 and 12 months.

This TEMPO data presented at the American Gastroenterological Association’s session GERD: Complications and Extraesophageal Presentations at the 2014 DDW® Annual Meeting in Chicago, Illinois include results from 63 patients treated at seven US centers, including three gastroenterology practices and four general surgery practices.