PMID- 28132008 OWN - NLM STAT- MEDLINE DCOM- 20171213 LR - 20210504 IS - 2044-6055 (Electronic) IS - 2044-6055 (Linking) VI - 7 IP - 1 DP - 2017 Jan 27 TI - Compensatory changes in energy balance during dapagliflozin treatment in type 2 diabetes mellitus: a randomised double-blind, placebo-controlled, cross-over trial (ENERGIZE)-study protocol. PG - e013539 LID - 10.1136/bmjopen-2016-013539 [doi] LID - e013539 AB - INTRODUCTION: Sodium glucose cotransporter 2 (SGLT2) inhibitors are effective blood-glucose-lowering medications with beneficial effects on body weight in patients with type 2 diabetes mellitus (T2DM). However, observed weight loss is less than that predicted from quantified glycosuria, suggesting a compensatory increase in energy intake or a decrease in energy expenditure. Studies using dual-energy X-ray absorptiometry (DEXA) have suggested most body weight change is due to loss of adipose tissue, but organ-specific changes in fat content (eg, liver, skeletal muscle) have not been determined. In this randomised, double-blind, placebo-controlled crossover study, we aim to study the compensatory changes in energy intake, eating behaviour and energy expenditure accompanying use of the SGLT2 inhibitor, dapagliflozin. Additionally, we aim to quantify changes in fat distribution using MRI, in liver fat using proton magnetic resonance spectroscopy ((1)H-MRS) and in central nervous system (CNS) responses to food images using blood oxygen level dependent (BOLD) functional MRI (fMRI). METHODS AND ANALYSIS: This outpatient study will evaluate the effect of dapagliflozin (10 mg), compared with placebo, on food intake and energy expenditure at 7 days and 12 weeks. 52 patients with T2DM will be randomised to dapagliflozin or placebo for short-term and long-term trial interventions in a within participants, crossover design. The primary outcome is the difference in energy intake during a test meal between dapagliflozin and placebo. Intake data are collected automatically using a customised programme operating a universal eating monitor (UEM). Secondary outcomes include (1) measures of appetite regulation including rate of eating, satiety quotient, appetite ratings (between and within meals), changes in CNS responses to food images measured using BOLD-fMRI, (2) measures of energy expenditure and (3) changes in body composition including changes in liver fat and abdominal visceral adipose tissue (VAT) and subcutaneous adipose tissue (SAT). ETHICAL APPROVAL: This study has been approved by the North West Liverpool Central Research Ethics Committee (14/NW/0340) and is conducted in accordance with the Declaration of Helsinki and the Good Clinical Practice (GCP). TRIAL REGISTRATION NUMBER: ISRCTN14818531. EUDRACT number 2013-004264-60. CI - Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/. FAU - Rajeev, Surya Panicker AU - Rajeev SP AD - Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, UK. AD - Diabetes and Endocrinology Research Group, Clinical Sciences Centre, Aintree University Hospital NHS Foundation Trust, Liverpool, UK. FAU - Sprung, Victoria S AU - Sprung VS AD - Diabetes and Endocrinology Research Group, Clinical Sciences Centre, Aintree University Hospital NHS Foundation Trust, Liverpool, UK. AD - Department of Musculoskeletal Biology II, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, UK. FAU - Roberts, Carl AU - Roberts C AD - Department of Psychological Sciences, Institute of Psychology, Health and Society, University of Liverpool, Liverpool, UK. FAU - Harrold, Jo A AU - Harrold JA AD - Department of Psychological Sciences, Institute of Psychology, Health and Society, University of Liverpool, Liverpool, UK. FAU - Halford, Jason C G AU - Halford JC AD - Department of Psychological Sciences, Institute of Psychology, Health and Society, University of Liverpool, Liverpool, UK. FAU - Stancak, Andrej AU - Stancak A AD - Department of Psychological Sciences, Institute of Psychology, Health and Society, University of Liverpool, Liverpool, UK. FAU - Boyland, Emma J AU - Boyland EJ AD - Department of Psychological Sciences, Institute of Psychology, Health and Society, University of Liverpool, Liverpool, UK. FAU - Kemp, Graham J AU - Kemp GJ AD - Department of Musculoskeletal Biology II, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, UK. AD - Magnetic Resonance and Image Analysis Research Centre (MARIARC), University of Liverpool, Liverpool, UK. FAU - Cuthbertson, Daniel J AU - Cuthbertson DJ AD - Diabetes and Endocrinology Research Group, Clinical Sciences Centre, Aintree University Hospital NHS Foundation Trust, Liverpool, UK. AD - Department of Musculoskeletal Biology II, Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, UK. FAU - Wilding, John P H AU - Wilding JP AD - Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, UK. AD - Diabetes and Endocrinology Research Group, Clinical Sciences Centre, Aintree University Hospital NHS Foundation Trust, Liverpool, UK. LA - eng SI - ISRCTN/ISRCTN14818531 SI - EudraCT/2013-004264-60 PT - Journal Article PT - Randomized Controlled Trial DEP - 20170127 PL - England TA - BMJ Open JT - BMJ open JID - 101552874 RN - 0 (Benzhydryl Compounds) RN - 0 (Glucosides) RN - 0 (Hypoglycemic Agents) RN - 1ULL0QJ8UC (dapagliflozin) SB - IM MH - Adipose Tissue/diagnostic imaging/pathology MH - Benzhydryl Compounds/*therapeutic use MH - Body Composition MH - Body Fat Distribution MH - Brain/*diagnostic imaging/physiopathology MH - Calorimetry, Indirect MH - Cross-Over Studies MH - Cues MH - Diabetes Mellitus, Type 2/*drug therapy/metabolism MH - Double-Blind Method MH - Eating MH - *Energy Metabolism MH - Feeding Behavior MH - Food MH - Functional Neuroimaging MH - Glucosides/*therapeutic use MH - Humans MH - Hypoglycemic Agents/*therapeutic use MH - Intra-Abdominal Fat/*metabolism MH - Liver MH - Magnetic Resonance Imaging MH - Organ Size MH - Proton Magnetic Resonance Spectroscopy PMC - PMC5278268 COIS- JW has acted as a consultant, received institutional grants and given lectures on behalf of pharmaceutical companies developing or marketing medicines used for the treatment of diabetes, specifically AstraZeneca, Boehringer Ingelheim, Janssen Pharmaceuticals, Lilly, Novo Nordisk and Sanofi &Takeda. DJC has competing interests with AstraZeneca, Boehringer Ingelheim, Janssen Pharmaceuticals, Lilly & Novo Nordisk. JCGH has acted as a consultant for Orexigen and Novo Nordisk. Other authors have no competing interests. EDAT- 2017/01/31 06:00 MHDA- 2017/12/14 06:00 PMCR- 2017/01/27 CRDT- 2017/01/30 06:00 PHST- 2017/01/30 06:00 [entrez] PHST- 2017/01/31 06:00 [pubmed] PHST- 2017/12/14 06:00 [medline] PHST- 2017/01/27 00:00 [pmc-release] AID - bmjopen-2016-013539 [pii] AID - 10.1136/bmjopen-2016-013539 [doi] PST - epublish SO - BMJ Open. 2017 Jan 27;7(1):e013539. doi: 10.1136/bmjopen-2016-013539.