PMID- 19067068 OWN - NLM STAT- MEDLINE DCOM- 20091216 LR - 20221207 IS - 1432-2218 (Electronic) IS - 0930-2794 (Linking) VI - 23 IP - 9 DP - 2009 Sep TI - Improvement in glycemic control by gastric electrical stimulation (TANTALUS) in overweight subjects with type 2 diabetes. PG - 1955-60 LID - 10.1007/s00464-008-0222-4 [doi] AB - BACKGROUND: The TANTALUS system (MetaCure Ltd.) is a minimally invasive implantable gastric stimulation modality that does not exhibit malabsorptive or restrictive characteristics. The device applies gastric contractility modulation (GCM) signals to the stomach antrum. The signals are delivered in synchronization to the native electrical activity of the stomach during meals. Retrospective analysis of previous studies indicated that type 2 diabetes mellitus (T2DM) subjects on oral medication with hemoglobin A1c (HbA1c) between 7.5% and 9.5% are the population with most potential benefit from the treatment. The current study includes subjects enrolled prospectively within that range of HbA1c. AIM: To prospectively investigate the potential effect of the TANTALUS system on glycemic control and weight in overweight subjects with T2DM. METHODS: In this European multicenter, open-label study, 13 T2DM obese (6 male, 7 female, BMI 37.2 +/- 1.0 kg/m(2), range 30.4-44.0 kg/m(2)) subjects treated with oral antidiabetic medications but with poor glycemic control (HbA1c > or = 7%, range 7.3-9.5%) were implanted laparoscopically with the TANTALUS system. RESULTS: Thirteen subjects that had completed 3 months of treatment showed a significant reduction in HbA1c from 8.0 +/- 0.2% to 6.9 +/- 0.1% (p < 0.05), whereas fasting blood glucose decreased from 175 +/- 6 mg/dL to 127 +/- 8 mg/dL (p < 0.05). The glycemic improvement was accompanied by reduction in weight from 104.4 +/- 4.4 kg to 99.7 +/- 4.8 kg, and in waist circumference from 122.3 +/- 3.2 cm to 117.0 +/- 3.0 cm. CONCLUSIONS: Interim results with the TANTALUS system suggest that this stimulation regime can potentially improve glucose levels and induce moderate weight loss in obese T2DM subjects on oral antidiabetic therapy with poor glycemic control. Further evaluation is required to determine whether this effect is due to induced weight loss and/or due to direct signal-dependent mechanisms. FAU - Bohdjalian, A AU - Bohdjalian A AD - Medical University of Vienna, Waehringer Guertel, 18-20, 1090, Vienna, Austria. FAU - Ludvik, B AU - Ludvik B FAU - Guerci, B AU - Guerci B FAU - Bresler, L AU - Bresler L FAU - Renard, E AU - Renard E FAU - Nocca, D AU - Nocca D FAU - Karnieli, E AU - Karnieli E FAU - Assalia, A AU - Assalia A FAU - Prager, R AU - Prager R FAU - Prager, G AU - Prager G LA - eng PT - Clinical Trial PT - Journal Article PT - Multicenter Study PT - Research Support, Non-U.S. Gov't DEP - 20081206 PL - Germany TA - Surg Endosc JT - Surgical endoscopy JID - 8806653 RN - 0 (Glycated Hemoglobin A) RN - 0 (Hypoglycemic Agents) SB - IM MH - Afferent Pathways/physiology MH - Blood Pressure MH - Combined Modality Therapy MH - Diabetes Mellitus, Type 2/blood/complications/drug therapy/*therapy MH - *Electric Stimulation Therapy MH - Electrodes, Implanted MH - Feasibility Studies MH - Female MH - Gastrointestinal Motility MH - Glycated Hemoglobin/*analysis MH - Humans MH - Hypoglycemic Agents/therapeutic use MH - Laparoscopy MH - Male MH - Obesity/complications/*therapy MH - Prospective Studies MH - Pyloric Antrum MH - Waist Circumference EDAT- 2008/12/11 09:00 MHDA- 2009/12/17 06:00 CRDT- 2008/12/11 09:00 PHST- 2008/06/11 00:00 [received] PHST- 2008/10/13 00:00 [accepted] PHST- 2008/12/11 09:00 [pubmed] PHST- 2009/12/17 06:00 [medline] PHST- 2008/12/11 09:00 [entrez] AID - 10.1007/s00464-008-0222-4 [doi] PST - ppublish SO - Surg Endosc. 2009 Sep;23(9):1955-60. doi: 10.1007/s00464-008-0222-4. Epub 2008 Dec 6.