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Lean ME, Leslie WS, Barnes AC, Brosnahan N, Thom G, McCombie L, Kelly T, Irvine K, Peters C, Zhyzhneuskaya S, Hollingsworth KG, Adamson AJ, Sniehotta FF, Mathers JC, McIlvenna Y, Welsh P, McConnachie A, McIntosh A, Sattar N, Taylor R. 5-year follow-up of the randomised Diabetes Remission Clinical Trial (DiRECT) of continued support for weight loss maintenance in the UK: an extension study. Lancet Diabetes Endocrinol 2024; 12:233-246. [PMID: 38423026 DOI: 10.1016/s2213-8587(23)00385-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 12/11/2023] [Accepted: 12/20/2023] [Indexed: 03/02/2024]
Abstract
BACKGROUND In DiRECT, a randomised controlled effectiveness trial, weight management intervention after 2 years resulted in mean weight loss of 7·6 kg, with 36% of participants in remission of type 2 diabetes. Of 36 in the intervention group who maintained over 10 kg weight loss at 2 years, 29 (81%) were in remission. Continued low-intensity dietary support was then offered up to 5 years from baseline to intervention participants, aiming to maintain weight loss and gain clinical benefits. This extension study was designed to provide observed outcomes at 5 years. METHODS The DiRECT trial took place in primary care practices in the UK. Participants were individuals aged 20-65 years who had less than 6 years' duration of type 2 diabetes, a BMI greater than 27 kg/m2, and were not on insulin. The intervention consisted of withdrawal of antidiabetic and antihypertensive drugs, total diet replacement (825-853 kcal per day formula diet for 12-20 weeks), stepped food reintroduction (2-8 weeks), and then structured support for weight-loss maintenance. After sharing the 2-year results with all participants, UK National Health Service data were collected annually until year 5 from remaining intervention participants who received low-intensity dietary support, intervention withdrawals, and the original randomly allocated groups. The primary outcome was remission of type 2 diabetes; having established in the DiRECT trial that sustained weight loss was the dominant driver of remission, this was assumed for the Extension study. The trial is registered with the ISRCTN registry, number 03267836. FINDINGS Between July 25, 2014, and Aug 5, 2016, 149 participants were randomly assigned to the intervention group and 149 were assigned to the control group in the original DiRECT study. After 2 years, all intervention participants still in the trial (101 [68%] of 149) were approached to receive low-intensity support for a further 3 years. 95 (94%) of 101 were able to continue and consented and were allocated to the DiRECT extension group. 54 participants were allocated to the non-extension group, where intervention was withdrawn. At 5 years, DiRECT extension participants (n=85) lost an average of 6·1 kg, with 11 (13%) of 85 in remission. Compared with the non-extension group, DiRECT extension participants had more visits with HbA1c <48 mmol/mol (<6·5%; 36% vs 17%, p=0·0004), without glucose-lowering medication (62% vs 30%, p<0·0001), and in remission (34% vs 12%, p<0·0001). Original control participants (n=149) had mean weight loss 4·6 kg (n=82), and 5 (5%) of 93 were in remission. Compared with control participants, original intervention participants had more visits with weight more than 5% below baseline (61% vs 29%, p<0·0001), HbA1c below 48 mmol/mol (29% vs 15%, p=0·0002), without antidiabetic medication (51% vs 16%, p<0·0001), and in remission (27% vs 4%, p<0·0001). Of those in remission at year 2, 26% remained in remission at 5 years. Serious adverse events in the original intervention group (4·8 events per 100 patient-years) were under half those in the control group (10·2 per 100 patient-years, p=0·0080). INTERPRETATION The extended DiRECT intervention was associated with greater aggregated and absolute weight loss, and suggested improved health status over 5 years. FUNDING Diabetes UK.
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Affiliation(s)
- Michael Ej Lean
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK.
| | - Wilma S Leslie
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Alison C Barnes
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK; Human Nutrition Research and Exercise Centre, Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Naomi Brosnahan
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK; Counterweight, London, UK
| | - George Thom
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Louise McCombie
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Tara Kelly
- Newcastle Magnetic Resonance Centre, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Keaton Irvine
- Newcastle Magnetic Resonance Centre, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Carl Peters
- Newcastle Magnetic Resonance Centre, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Sviatlana Zhyzhneuskaya
- Newcastle Magnetic Resonance Centre, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Kieren G Hollingsworth
- Newcastle Magnetic Resonance Centre, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Ashley J Adamson
- Human Nutrition Research and Exercise Centre, Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Falko F Sniehotta
- Centre for Preventive Medicine and Digital Health (CPD), Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - John C Mathers
- Human Nutrition Research and Exercise Centre, Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Yvonne McIlvenna
- General Practice and Primary Care, School of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Paul Welsh
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK
| | - Alex McConnachie
- Robertson Centre for Biostatistics, School of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Alasdair McIntosh
- Robertson Centre for Biostatistics, School of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Naveed Sattar
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, UK
| | - Roy Taylor
- Newcastle Magnetic Resonance Centre, Translational and Clinical Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
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Haag L, Richardson J, Cunningham Y, Fraser H, Brosnahan N, Ibbotson T, Ormerod J, White C, McIntosh E, O'Donnell K, Sattar N, McConnachie A, Lean MEJ, Blane DN, Combet E. The remote diet intervention to reduce Long COVID symptoms trial (ReDIRECT): protocol for a randomised controlled trial to determine the effectiveness and cost-effectiveness of a remotely delivered supported weight management programme for people with Long COVID and excess weight, with personalised improvement goals. NIHR Open Res 2023; 2:57. [PMID: 37881302 PMCID: PMC10593354 DOI: 10.3310/nihropenres.13315.2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Accepted: 07/28/2023] [Indexed: 10/27/2023]
Abstract
Objectves The Remote Diet Intervention to Reduce Long COVID Symptoms Trial (ReDIRECT) evaluates whether the digitally delivered, evidence-based, cost-effective Counterweight-Plus weight management programme improves symptoms of Long COVID in people with overweight/obesity. Methods Baseline randomised, non-blinded design with 240 participants allocated in a 1:1 ratio either to continue usual care or to add the remotely delivered Counterweight-Plus weight management programme, which includes a Counterweight dietitian supported delivery of 12 weeks total diet replacement, food reintroduction, and long-term weight loss maintenance. Randomisation is achieved by accessing a web-based randomisation system incorporated into the study web portal developed by a registered Clinical Trials Unit. We are using an innovative approach to outcome personalisation, with each participant selecting their most dominant Long COVID symptom as their primary outcome assessed at six months. Participants in the control arm enter the weight management programme after six months. We are recruiting participants from social media and existing networks (e.g., Long COVID Scotland groups), through newspaper advertisements and from primary care. Main inclusion criteria: people with Long COVID symptoms persisting > three months, aged 18 years or above, body mass index (BMI) above 27kg/m 2 (>25kg/m 2 for South Asians). The trial includes a process evaluation (involving qualitative interviews with participants and analysis of data on dose, fidelity and reach of the intervention) and economic evaluation (within-trial and long-term cost-utility analyses). Anticipated results The recruitment for this study started in December 2021 and ended in July 2022. Project results are not yet available and will be shared via peer-reviewed publication once the six-months outcomes have been analysed. Trial registration Current Controlled Trials ISRCTN12595520.
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Affiliation(s)
- Laura Haag
- Human Nutrition, School of Medicine, Dentistry & Nursing, University of Glasgow, Glasgow, G31 2ER, UK
| | - Janice Richardson
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, G12 8TA, UK
| | - Yvonne Cunningham
- General Practice & Primary Care, School of Health and Wellbeing, University of Glasgow, Glasgow, G12 9LX, UK
| | - Heather Fraser
- Health Economics and Health Technology Assessment, School of Health and Wellbeing, University of Glasgow, Glasgow, G12 8RZ, UK
| | | | - Tracy Ibbotson
- General Practice & Primary Care, School of Health and Wellbeing, University of Glasgow, Glasgow, G12 9LX, UK
| | | | | | - Emma McIntosh
- Health Economics and Health Technology Assessment, School of Health and Wellbeing, University of Glasgow, Glasgow, G12 8RZ, UK
| | - Kate O'Donnell
- General Practice & Primary Care, School of Health and Wellbeing, University of Glasgow, Glasgow, G12 9LX, UK
| | - Naveed Sattar
- School of Cardiovascular and Metabolic Health, University of Glasgow, Glasgow, G12 8TA, UK
| | - Alex McConnachie
- Robertson Centre for Biostatistics, University of Glasgow, Glasgow, G12 8QQ, UK
| | - Michael E. J. Lean
- Human Nutrition, School of Medicine, Dentistry & Nursing, University of Glasgow, Glasgow, G31 2ER, UK
| | - David N. Blane
- General Practice & Primary Care, School of Health and Wellbeing, University of Glasgow, Glasgow, G12 9LX, UK
| | - Emilie Combet
- Human Nutrition, School of Medicine, Dentistry & Nursing, University of Glasgow, Glasgow, G31 2ER, UK
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Sharma V, Ricketts HC, McCombie L, Brosnahan N, Crawford L, Slaughter L, Goodfellow A, Steffensen F, Buchan DS, Chaudhuri R, Lean MEJ, Cowan DC. A Total Diet Replacement Weight Management Program for Difficult-to-Treat Asthma Associated With Obesity: A Randomized Controlled Feasibility Trial. Chest 2023; 163:1026-1037. [PMID: 36649753 PMCID: PMC10808069 DOI: 10.1016/j.chest.2023.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Revised: 01/06/2023] [Accepted: 01/10/2023] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND Obesity is often associated with uncontrolled, difficult-to-treat asthma and increased morbidity and mortality. Previous studies suggest that weight loss may improve asthma outcomes, but with heterogenous asthma populations studied and unclear consensus on the optimal method of weight management. The Counterweight-Plus Programme (CWP) for weight management is an evidence-based, dietitian-led total diet replacement (TDR) program. RESEARCH QUESTION Can use of the CWP compared with usual care (UC) improve asthma control and quality of life in patients with difficult-to-treat asthma and obesity? STUDY DESIGN AND METHODS We conducted a 1:1 (CWP to UC) randomized, controlled single-center trial in adults with difficult-to-treat asthma and BMI of ≥ 30 kg/m2. The CWP was a 12-week TDR phase (800 kcal/d low-energy formula) followed by stepwise food reintroduction and weight loss maintenance for up to 1 year. The primary outcome was the change in Asthma Control Questionnaire 6 (ACQ6) score over 16 weeks. The secondary outcome was change in Asthma Quality of Life Questionnaire (AQLQ) score. RESULTS Thirty-five participants were randomized (36 screened) and 33 attended the 16-week follow-up (n = 17 in the CWP group, n = 16 in the UC group). Overall, mean ACQ6 score at baseline was 2.8 (95% CI, 2.4-3.1). Weight loss was greater in the CWP than UC group (mean difference, -12.1 kg; 95% CI, -16.9 to -7.4; P < .001). ACQ6 score improved more in the CWP than UC group (mean difference, -0.69; 95% CI, -1.37 to -0.01; P = .048). A larger proportion of participants achieved the minimal clinically important difference in ACQ6 score with CWP than with UC (53% vs 19%; P = .041; Number needed to treat, 3 [95% CI, 1.5-26.9]). AQLQ score improvement was greater in the CWP than UC group (mean difference, 0.76; 95% CI, 0.18-1.34; P = .013). INTERPRETATION Using a structured weight management program results in clinically important improvements in asthma control and quality of life over 16 weeks compared with UC in adults with difficult-to-treat asthma and obesity. This generalizable program is easy to deliver for this challenging phenotype. Longer-term outcomes continue to be studied. TRIAL REGISTRY ClinicalTrials.gov; No.: NCT03858608; URL: www. CLINICALTRIALS gov.
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Affiliation(s)
- Varun Sharma
- Institute of Infection, Immunity and InflammationSchool of Medicine, Dentistry and Nursing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, Scotland; Clinical Research Facility, Glasgow Royal Infirmary, School of Health and Life Sciences, University of the West of Scotland, Glasgow, Scotland.
| | - Helen Clare Ricketts
- Institute of Infection, Immunity and InflammationSchool of Medicine, Dentistry and Nursing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, Scotland; Clinical Research Facility, Glasgow Royal Infirmary, School of Health and Life Sciences, University of the West of Scotland, Glasgow, Scotland
| | - Louise McCombie
- Human Nutrition Unit, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, Scotland
| | - Naomi Brosnahan
- Human Nutrition Unit, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, Scotland; Counterweight, Ltd., London, England
| | - Luisa Crawford
- Human Nutrition Unit, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, Scotland
| | - Lesley Slaughter
- Human Nutrition Unit, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, Scotland
| | - Anna Goodfellow
- Clinical Research Facility, Glasgow Royal Infirmary, School of Health and Life Sciences, University of the West of Scotland, Glasgow, Scotland
| | - Femke Steffensen
- Clinical Research Facility, Glasgow Royal Infirmary, School of Health and Life Sciences, University of the West of Scotland, Glasgow, Scotland
| | - Duncan S Buchan
- Division of Sport and Exercise, School of Health and Life Sciences, University of the West of Scotland, Glasgow, Scotland
| | - Rekha Chaudhuri
- Institute of Infection, Immunity and InflammationSchool of Medicine, Dentistry and Nursing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, Scotland
| | - Michael E J Lean
- Human Nutrition Unit, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, Scotland; Clinical Research Facility, Glasgow Royal Infirmary, School of Health and Life Sciences, University of the West of Scotland, Glasgow, Scotland
| | - Douglas C Cowan
- Institute of Infection, Immunity and InflammationSchool of Medicine, Dentistry and Nursing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, Scotland; Clinical Research Facility, Glasgow Royal Infirmary, School of Health and Life Sciences, University of the West of Scotland, Glasgow, Scotland
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Cassidy S, Trenell M, Stefanetti RJ, Charman SJ, Barnes AC, Brosnahan N, McCombie L, Thom G, Peters C, Zhyzhneuskaya S, Leslie WS, Catt C, Catt M, McConnachie A, Sattar N, Sniehotta FF, Lean MEJ, Taylor R. Physical activity, inactivity and sleep during the Diabetes Remission Clinical Trial (DiRECT). Diabet Med 2023; 40:e15010. [PMID: 36398460 PMCID: PMC10099825 DOI: 10.1111/dme.15010] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 11/07/2022] [Accepted: 11/14/2022] [Indexed: 11/19/2022]
Abstract
AIMS As sustained weight loss is vital for achieving remission of type 2 diabetes, we explored whether randomisation to weight loss plus maintenance in the DiRECT trial was associated with physical activity, inactivity or sleep. METHODS Participants were randomised to either a dietary weight management programme or best-practice care. The weight management group were encouraged to increase daily physical activity to their sustainable maximum. Objective measurement was achieved using a wrist-worn GENEActiv accelerometer for 7 days at baseline, 12 and 24 months in both groups. RESULTS Despite average weight loss of 10 kg at 12 months in the intervention (n = 66) group, there were no differences in total physical activity or inactivity compared with the control (n = 104) at any time point. However, in our exploratory analysis, those who lost more than 10% of their baseline body weight performed on average 11 mins/day more light activity than the <10% group at 24 months (p = 0.033) and had significantly lower bouts of Inactivity30min (interaction, p = 0.005) across 12 and 24 months. At 24 months, the ≥10% group had higher daily acceleration (38.5 ± 12.1 vs. 33.2 ± 11.1 mg, p = 0.020), and higher accelerations in the most active 5-hour period (59.4 ± 21.8 vs. 50.6 ± 18.3 mg, p = 0.023). Wakefulness after sleep onset decreased in the intervention group compared with the control group and also in the ≥10% weight loss group at 12 and 24 months. CONCLUSIONS Randomisation to a successful intensive weight loss intervention, including regular physical activity encouragement, was not associated with increased physical activity although sleep parameters improved. Physical activity was greater, and night-time waking reduced in those who maintained >10% weight loss at 12 and 24 months. TRIAL REGISTRATION ISRCTN03267836.
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Affiliation(s)
- Sophie Cassidy
- Central Clinical School, Faculty of Medicine and Health, University of Sydney, Sydney, Australia
| | - Michael Trenell
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Renae J Stefanetti
- Wellcome Centre for Mitochondrial Research, Clinical and Translational Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Sarah J Charman
- Clinical and Translational Research Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Alison C Barnes
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Naomi Brosnahan
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Louise McCombie
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - George Thom
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Carl Peters
- Magnetic Resonance Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Sviatlana Zhyzhneuskaya
- Magnetic Resonance Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Wilma S Leslie
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Christopher Catt
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Michael Catt
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Alex McConnachie
- Robertson Centre for Biostatistics, Institute of Health and Wellbeing, University of Glasgow, Glasgow, Scotland
| | - Naveed Sattar
- Institute of Cardiovascular and Medical Science, University of Glasgow, Glasgow, UK
| | - Falko F Sniehotta
- Population Health Sciences Institute, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
- Faculty of Behavioural, Management and Social Sciences, University of Twente, Enschede, New Brunswick, The Netherlands
| | - Michael E J Lean
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Roy Taylor
- Magnetic Resonance Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
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Sattar N, Welsh P, Leslie WS, Thom G, McCombie L, Brosnahan N, Richardson J, Gill JM, Crawford L, Lean ME. Dietary weight-management for type 2 diabetes remissions in South Asians: the South Asian diabetes remission randomised trial for proof-of-concept and feasibility (STANDby). Lancet Reg Health Southeast Asia 2023; 9:100111. [PMID: 36777452 PMCID: PMC9904218 DOI: 10.1016/j.lansea.2022.100111] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 10/31/2022] [Accepted: 11/02/2022] [Indexed: 11/25/2022]
Abstract
Background We aimed to assess whether a structured weight management programme incorporating a total diet replacement (TDR) (3-5 months ∼850 kcal/day formula diet) weight loss phase is acceptable to people of South Asian ethnicity and can achieve type 2 diabetes (T2D) remissions similarly to other populations. Methods Adults of South Asian ethnicity, aged 18-65 years, with T2D for ≤4 years, and BMI 25-45 kg/m2 were recruited from primary care and social media, and randomised to commence TDR either immediately (iTDR), or delayed (dTDR) for 3-5 months as a usual care control arm during this period. Intervention effects were tested in randomised comparisons powered to detect significant weight loss, and in an expanded observational analysis to determine remission effect size, including both iTDR and dTDR groups. Acceptability in those recruited was explored by questionnaire and weight change. Trial registration Current Controlled Trials, ISRCTN10720065. Date of Registration 27/09/2017. Findings Twenty-five eligible individuals were recruited. Mean baseline (SD) age was 45.8 (11.1) years, weight 88.2 (13.7) kg, BMI 32.1 (3.8) kg/m2, HbA1c 60.4 (11.3) mmol/mol, liver fat by MRI 15.6 (9.4)%. In the RCT, mean(SD) weight change after TDR was -7.7 (7.2)% in the intervention group (n = 13), and -1.2 (1.4)% in the usual-care control group (n = 12) (p = 0.005), with T2D remission achieved by 5/13, compared to 0/12 respectively (p = 0.039). In the observational study, 23/25 started TDR and 19/23 participants completed the TDR phase. Median time spent in TDR was 105 days (IQR 77-134 days). T2D remission was achieved in 10/23 (43%), and weight changes were concordant with the RCT. Overall, 8/23 (35%) lost over 10% bodyweight. Absolute liver fat proportion near halved from 15.3% at the start of TDR to 8.6% (p < 0.001). Interpretation In UK-based South Asians, TDR-led weight loss and T2D remission rates are comparable to those observed in white cohorts, and the intervention was acceptable in most of those recruited. There is potential to further improve outcomes, but one-third lost >10% body weight, and the mechanism underpinning T2D remission appears similar, driven by weight change with loss of excess ectopic body-fat. Funding We gratefully acknowledge funding for the MRI scans from the, Miss MJM Smith Trust (registered charity: SC040586). No other external funds were provided for this trial. NS is supported by the British Heart Foundation Research Excellence Award (RE/18/6/34217).
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Affiliation(s)
- Naveed Sattar
- School of Cardiovascular and Metabolic Health, BHF Glasgow Cardiovascular Research Centre, University of Glasgow, 126 University Place, Glasgow, G12 8TA, UK
- Corresponding author.
| | - Paul Welsh
- School of Cardiovascular and Metabolic Health, BHF Glasgow Cardiovascular Research Centre, University of Glasgow, 126 University Place, Glasgow, G12 8TA, UK
| | - Wilma S. Leslie
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, G31 2ER, UK
| | - George Thom
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, G31 2ER, UK
| | - Louise McCombie
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, G31 2ER, UK
| | - Naomi Brosnahan
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, G31 2ER, UK
- Counterweight Ltd, London, UK
| | - Janice Richardson
- School of Cardiovascular and Metabolic Health, BHF Glasgow Cardiovascular Research Centre, University of Glasgow, 126 University Place, Glasgow, G12 8TA, UK
| | - Jason M.R. Gill
- School of Cardiovascular and Metabolic Health, BHF Glasgow Cardiovascular Research Centre, University of Glasgow, 126 University Place, Glasgow, G12 8TA, UK
| | - Luisa Crawford
- NHS Forth Valley, Stirling Community Hospital, Livilands Gate, Stirling, FK8 2AU, UK
| | - Michael E.J. Lean
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, G31 2ER, UK
- Corresponding author. Human Nutrition, School of Medicine, Dentistry and Nursing, R2.19, Level 2, New Lister Building, Glasgow Royal Infirmary, Glasgow, G31 2ER, UK.
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Brown A, Brosnahan N, Khazaei D, Wingrove J, Flint SW, Batterham RL. UK dietitians' attitudes and experiences of formula very low- and low-energy diets in clinical practice. Clin Obes 2022; 12:e12509. [PMID: 35068081 PMCID: PMC9286801 DOI: 10.1111/cob.12509] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 12/07/2021] [Accepted: 01/06/2022] [Indexed: 01/13/2023]
Abstract
Despite evidence that formula very low-energy diets (VLED) and low-energy diets (LED) are both effective and safe as treatments for obesity and type 2 diabetes, these diets remain underutilized in the United Kingdom. The aim of this study was to explore UK dietitians' attitudes and experiences of using formula VLED and LED. A cross-sectional survey was disseminated between September 2019 and April 2020 through websites, social media platforms and dietetic networks using snowball sampling. In total, 241 dietitians responded to the online survey with 152 participants included in the final analysis (female [94.1%], mean age 40.8 years [SD 9.5]; median 12 years [interquartile range 8, 22] within dietetic practice). One hundred and nine (71.7%) participants reported currently using VLED/LED in clinical practice and 43 (28.3%) did not. Those with lower motivation and confidence in implementing VLED/LED in clinical practice were less likely to use them. Cost and adherence were the two highest reported barriers to use. Dietitians perceived VLED/LED were effective, but concerns remained about long-term effectiveness, particularly for some patient groups. Dietitians also reported that further education, funding and service infrastructure, including access to clinic space and administrative support, were required to help embed VLED/LED into routine clinical practice. With clinical services now regularly offering VLED/LED programmes in the United Kingdom, dietitians are ideally placed to provide long-term support. However, understanding, reporting and addressing the potential barriers (funding/infrastructure and education) appear to be key requirements in increasing the delivery of VLED/LED programmes nationally.
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Affiliation(s)
- Adrian Brown
- Centre for Obesity ResearchUniversity College LondonLondonUK
- Bariatric Centre for Weight Management and Metabolic SurgeryUniversity College London Hospital NHS TrustLondonUK
- National Institute of Health ResearchUCLH Biomedical Research CentreLondonUK
| | - Naomi Brosnahan
- School of Medicine, Dentistry & NursingUniversity of GlasgowScotlandUK
- Counterweight LtdLondonUK
| | - Dorsa Khazaei
- Centre for Obesity ResearchUniversity College LondonLondonUK
| | - Jed Wingrove
- Centre for Obesity ResearchUniversity College LondonLondonUK
- Bariatric Centre for Weight Management and Metabolic SurgeryUniversity College London Hospital NHS TrustLondonUK
- National Institute of Health ResearchUCLH Biomedical Research CentreLondonUK
| | - Stuart W. Flint
- School of PsychologyUniversity of LeedsLeedsUK
- Scaled Insights, NexusUniversity of LeedsLeedsUK
| | - Rachel L. Batterham
- Centre for Obesity ResearchUniversity College LondonLondonUK
- Bariatric Centre for Weight Management and Metabolic SurgeryUniversity College London Hospital NHS TrustLondonUK
- National Institute of Health ResearchUCLH Biomedical Research CentreLondonUK
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Rehackova L, Taylor R, Lean M, Barnes A, McCombie L, Thom G, Brosnahan N, Leslie WS, Sniehotta FF. Delivering the Diabetes Remission Clinical Trial (DiRECT) in primary care: Experiences of healthcare professionals. Diabet Med 2022; 39:e14752. [PMID: 34837259 DOI: 10.1111/dme.14752] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Accepted: 11/25/2021] [Indexed: 01/02/2023]
Abstract
OBJECTIVE The Diabetes Remission Clinical Trial (DiRECT) used a formula total diet replacement programme followed by structured weight loss maintenance to induce and sustain weight loss and remission of type 2 diabetes (T2D) in 36% of participants after 2 years. Nurses and dietitians delivering DiRECT in 22 primary care practices in Tyneside and Scotland provided behavioural support to participants. Participant experiences with DiRECT highlighted the key role of support by healthcare professionals (HCPs). We evaluated HCPs' experiences with DiRECT. RESEARCH DESIGN AND METHODS Healthcare professionals delivering DiRECT were interviewed at 12 months, while general practices (GPs) were sent an implementation questionnaire. The interviews were analysed thematically. The questionnaires were analysed using frequencies and a narrative synthesis. RESULTS Healthcare professionals representing 11 of 22 intervention practices were interviewed and 10 of 22 GPs completed questionnaires. HCPs' initial concerns over perceived potential negative intervention effects, particularly withdrawing anti-diabetes and anti-hypertensive medications, were barriers to engagement. Trust of HCPs towards the research team and perceived credibility of the study facilitated engagement and adoption. Ongoing support by research dietitians was key to the management of participants. Involvement in DiRECT inspired more focus on behaviour modification in the treatment of other people living with T2D in routine practice. CONCLUSIONS Diabetes Remission Clinical Trial was considered highly appropriate for the management of T2D in primary care when supported by trained dietitians. Addressing limitations, including varying training needs of HCPs may improve intervention scale-up and tailoring to clinical contexts.
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Affiliation(s)
- Lucia Rehackova
- Policy Research Unit Behavioural Science, Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
- Policy Innovation Research Unit, London School of Hygiene and Tropical Medicine, London, UK
| | - Roy Taylor
- Magnetic Resonance Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Mike Lean
- Human Nutrition, School of Medicine Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - Alison Barnes
- Human Nutrition Research Centre, Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Louise McCombie
- Human Nutrition, School of Medicine Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - George Thom
- Human Nutrition, School of Medicine Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - Naomi Brosnahan
- Human Nutrition, School of Medicine Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - Wilma S Leslie
- Human Nutrition, School of Medicine Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - Falko F Sniehotta
- Policy Research Unit Behavioural Science, Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne, UK
- Faculty of Behavioural, Management and Social Sciences (BMS), Twente University, Enschede, The Netherlands
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Rehackova L, Rodrigues AM, Thom G, Brosnahan N, Barnes AC, McCombie L, Leslie WS, Zhyzhneuskaya S, Peters C, Adamson AJ, Lean MEJ, Taylor R, Sniehotta FF. Participant experiences in the Diabetes REmission Clinical Trial (DiRECT). Diabet Med 2022; 39:e14689. [PMID: 34519099 DOI: 10.1111/dme.14689] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 08/11/2021] [Accepted: 08/31/2021] [Indexed: 12/19/2022]
Abstract
INTRODUCTION The Diabetes REmission Clinical Trial (DiRECT) has shown that sustained remission of type 2 diabetes in primary care is achievable through weight loss using total diet replacement (TDR) with continued behavioural support. Understanding participants' experiences can help optimise the intervention, support implementation into healthcare, and understand the process of behaviour change. METHODS Thirty-four DiRECT participants were recruited into this embedded qualitative evaluation study. In-person and telephone interviews were conducted before the TDR; at week 6-8 of the TDR; 2 weeks into food reintroduction (FR); and at 1 year, to learn about participant experiences with the programme. Transcribed narratives were analysed thematically, and we used interpretation to develop overarching themes. RESULTS Initiation of the TDR and transition to FR were challenging and required increased behavioural support. In general, adhering to TDR proved easier than the participants had anticipated. Some participants chose the optional extension of TDR. Rapid weight loss and changes in diabetes markers provided ongoing motivation. Further weight loss, behavioural support and occasional use of TDR facilitated weight loss maintenance (WLM). A process of behaviour adaptation to change following regime disruption was identified in three stages: (1) expectations of the new, (2) overcoming difficulties with adherence, and (3) acceptance of continuous effort and establishment of routines. CONCLUSIONS The DiRECT intervention was acceptable and regularity, continuity, and tailoring of behavioural support was instrumental in its implementation in primary care. The adaptation process accounts for some of the individual variability of experiences with the intervention and highlights the need for programme flexibility.
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Affiliation(s)
- Lucia Rehackova
- Policy Research Unit Behavioural Science, Newcastle University, Newcastle upon Tyne, UK
- Policy Innovation Research Unit, London School of Hygiene and Tropical Medicine, London, UK
| | - Angela Margarete Rodrigues
- Policy Research Unit Behavioural Science, Newcastle University, Newcastle upon Tyne, UK
- Department of Psychology, Northumbria University at Newcastle, Newcastle upon Tyne, UK
| | - George Thom
- School of Medicine Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - Naomi Brosnahan
- School of Medicine Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - Alison C Barnes
- Human Nutrition Research Centre, Newcastle University, Newcastle upon Tyne, UK
| | - Louise McCombie
- School of Medicine Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - Wilma S Leslie
- School of Medicine Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - Sviatlana Zhyzhneuskaya
- Magnetic Resonance Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Carl Peters
- Magnetic Resonance Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Ashley J Adamson
- Human Nutrition Research Centre, Newcastle University, Newcastle upon Tyne, UK
| | - Michael E J Lean
- School of Medicine Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - Roy Taylor
- Magnetic Resonance Centre, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Falko F Sniehotta
- Policy Research Unit Behavioural Science, Newcastle University, Newcastle upon Tyne, UK
- Faculty of Behavioural, Management and Social Sciences (BMS), Twente University, Enschede, The Netherlands
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Thom G, Messow CM, Leslie WS, Barnes AC, Brosnahan N, McCombie L, Al-Mrabeh A, Zhyzhneuskaya S, Welsh P, Sattar N, Taylor R, Lean MEJ. Predictors of type 2 diabetes remission in the Diabetes Remission Clinical Trial (DiRECT). Diabet Med 2021; 38:e14395. [PMID: 32870520 DOI: 10.1111/dme.14395] [Citation(s) in RCA: 39] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 07/30/2020] [Accepted: 08/25/2020] [Indexed: 01/09/2023]
Abstract
AIM To identify predictors of type 2 diabetes remission in the intervention arm of DiRECT (Diabetes Remission Clinical Trial). METHODS Participants were aged 20-65 years, with type 2 diabetes duration of <6 years and BMI 27-45 kg/m2 , and were not receiving insulin. Weight loss was initiated by total diet replacement (825-853 kcal/day, 3-5 months, shakes/soups), and weight loss maintenance support was provided for 2 years. Remissions (HbA1c <48 mmol/mol [<6.5%], without antidiabetes medications) in the intervention group (n = 149, mean age 53 years, BMI 35 kg/m2 ) were achieved by 68/149 participants (46%) at 12 months and by 53/149 participants (36%) at 24 months. Potential predictors were examined by logistic regression analyses, with adjustments for weight loss and effects independent of weight loss. RESULTS Baseline predictors of remission at 12 and 24 months included being prescribed fewer antidiabetes medications, having lower triglyceride and gamma-glutamyl transferase levels, and reporting better quality of life with less anxiety/depression. Lower baseline HbA1c was a predictor at 12 months, and older age and male sex were predictors at 24 months. Being prescribed antidepressants predicted non-remission. Some, but not all effects were explained by weight loss. Weight loss was the strongest predictor of remission at 12 months (adjusted odds ratio per kg weight loss 1.24, 95% CI 1.14, 1.34; P < 0.0001) and 24 months (adjusted odds ratio 1.23, 95% CI 1.13, 1.35; P <0.0001). Weight loss in kilograms and percentage weight loss were equally good predictors. Early weight loss and higher programme attendance predicted more remissions. Baseline BMI, fasting insulin, fasting C-peptide and diabetes duration did not predict remission. CONCLUSIONS Other than weight loss, most predictors were modest, and not sufficient to identify subgroups for which remission was not a worthwhile target.
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Affiliation(s)
- G Thom
- Human Nutrition, School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - C-M Messow
- Robertson Centre for Biostatistics, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - W S Leslie
- Human Nutrition, School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - A C Barnes
- Human Nutrition Research Centre, Institute of Health and Society, Newcastle University, Newcastle-upon-Tyne, UK
| | - N Brosnahan
- Human Nutrition, School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - L McCombie
- Human Nutrition, School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - A Al-Mrabeh
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Newcastle University, Newcastle-upon-Tyne, UK
| | - S Zhyzhneuskaya
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Newcastle University, Newcastle-upon-Tyne, UK
| | - P Welsh
- Institute of Cardiovascular and Medical Science, University of Glasgow, Glasgow, UK
| | - N Sattar
- Institute of Cardiovascular and Medical Science, University of Glasgow, Glasgow, UK
| | - R Taylor
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Newcastle University, Newcastle-upon-Tyne, UK
| | - M E J Lean
- Human Nutrition, School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
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Thom G, McIntosh A, Messow CM, Leslie WS, Barnes AC, Brosnahan N, McCombie L, Malkova D, Al-Mrabeh A, Zhyzhneuskaya S, Welsh P, Sattar N, Taylor R, Lean MEJ. Weight loss-induced increase in fasting ghrelin concentration is a predictor of weight regain: Evidence from the Diabetes Remission Clinical Trial (DiRECT). Diabetes Obes Metab 2021; 23:711-719. [PMID: 33289256 DOI: 10.1111/dom.14274] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/22/2020] [Accepted: 11/26/2020] [Indexed: 01/08/2023]
Abstract
AIM To investigate whether appetite-related hormones were predictors of weight regain in the Diabetes Remission Clinical Trial (DiRECT). MATERIALS AND METHODS DiRECT is a cluster-randomized clinical trial, designed to assess the effect of weight loss on type 2 diabetes remission. For this post hoc analysis, data were available for 253 (147 interventions, 106 controls) individuals with type 2 diabetes (age 53.6 ± 7.5 years, body mass index 34.7 ± 4.4 kg/m2 , 59% men). Intervention participants received a 24-month weight management programme, and controls remained on usual diabetes care. Fasting plasma concentrations of leptin, ghrelin, glucagon-like peptide-1 and peptide YY were measured at baseline, 12 months and 24 months in all participants, and at 5 months in a subset of participants in the intervention (n = 56) and control groups (n = 22). Potential predictors were examined using multivariable linear regression models. RESULTS The intervention group lost 14.3 ± 6.0% body weight at 5 months but regained weight over time, with weight losses of 10.0 ± 7.5% at 12 months and 7.6 ± 6.3% at 24 months. Weight loss in controls was 1.1 ± 3.7% and 2.1 ± 5.0% at 12 and 24 months, respectively. Body weight increased by 2.3% (95% confidence interval [CI] 0.4, 4.1; P = 0.019) between 12 and 24 months for every 1-ng/mL increase in ghrelin between baseline and 12 months, and weight regain between 12 and 24 months was increased by 1.1% (95% CI 0.2, 2.0; P = 0.023) body weight for every 1-ng/mL increase in ghrelin at 12 months. CONCLUSION The rise in ghrelin (but not any other measured hormone) during diet-induced weight loss was a predictor of weight regain during follow-up, and concentrations remained elevated over time, suggesting a small but significant compensatory drive to regain weight. Attenuating the effects of ghrelin may improve weight-loss maintenance.
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Affiliation(s)
- George Thom
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow Royal Infirmary, Glasgow, UK
| | - Alasdair McIntosh
- Robertson Centre for Biostatistics, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Claudia-Martina Messow
- Robertson Centre for Biostatistics, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Wilma S Leslie
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow Royal Infirmary, Glasgow, UK
| | - Alison C Barnes
- Human Nutrition Research Centre, Institute of Health and Society, Newcastle University, Newcastle upon Tyne, UK
| | - Naomi Brosnahan
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow Royal Infirmary, Glasgow, UK
| | - Louise McCombie
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow Royal Infirmary, Glasgow, UK
| | - Dalia Malkova
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow Royal Infirmary, Glasgow, UK
| | - Ahmad Al-Mrabeh
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Sviatlana Zhyzhneuskaya
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Paul Welsh
- Institute of Cardiovascular and Medical Science, University of Glasgow, Glasgow, UK
| | - Naveed Sattar
- Institute of Cardiovascular and Medical Science, University of Glasgow, Glasgow, UK
| | - Roy Taylor
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Michael E J Lean
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow Royal Infirmary, Glasgow, UK
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Brosnahan N, Leslie W, McCombie L, Barnes A, Thom G, McConnachie A, Messow CM, Sattar N, Taylor R, Lean MEJ. Brief formula low-energy-diet for relapse management during weight loss maintenance in the Diabetes Remission Clinical Trial (DiRECT). J Hum Nutr Diet 2021; 34:472-479. [PMID: 33406285 DOI: 10.1111/jhn.12839] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 10/08/2020] [Accepted: 10/20/2020] [Indexed: 11/27/2022]
Abstract
BACKGROUND Weight loss maintenance (WLM) is critical for sustaining type 2 diabetes (T2D) remission, but poorly evidenced. We evaluated brief return to formula low-energy-diet (LED) as relapse treatments (RTs) during the WLM phase of the Diabetes Remission Clinical Trial (DiRECT). METHODS This post-hoc evaluation included all participants commencing the WLM phase of DiRECT. The protocol offered RT when regain of >2 kg occurred. RESULTS In total, 123/149 (83%) DiRECT intervention participants commenced the WLM phase after 26 (17%) had withdrawn prior to the WLM phase. Most participants [99/123 (80%)] regained >2 kg during the WLM phase, among whom 60/99 (61%) were recorded as using RT and 39/99 (39%) not using any RT. At baseline, RT users had a higher mean (SD) body mass index [35.8 (4.9) kg m-2 vs. 33.8 (3.9) kg m-2 , p = 0.0231] and had greater social deprivation (P = 0.0003) than non-users, although otherwise the groups were similar. Weight loss ≥ 2k g was achieved in 30/93 (32%) of RT attempts. At 2 years, those regaining >2 kg and using RT (n = 60) had mean (SD) weight losses of 7.4 (6.1) kg, with 25 (42%) remissions and 7 (12%) programme withdrawals. Those regaining >2 kg but not using RT (n = 39) had weight losses of 8.8 (6.0) kg, with 21 (54%) remissions and 4 (10%) programme withdrawals (all not significant). Twelve participants were never recorded as having regained >2 kg or using RTs and, at 2 years, their weight losses were 12.9 (9.2) kg, with 4 (33%) remissions and 8 (67%) programme withdrawals. CONCLUSIONS Most people with T2D experience weight regain >2 kg during the 2 years after substantial weight loss with a LED. Only one-third of RTs corrected their 2-kg regain, resulting in similar weight losses, remissions and programme withdrawals at 2 years compared to those not using RTs; however, both groups had weight losses below those not recorded as regaining >2 kg during WLM.
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Affiliation(s)
- Naomi Brosnahan
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK
| | - Wilma Leslie
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK
| | - Louise McCombie
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK
| | - Alison Barnes
- Human Nutrition Research Centre, Institute of Health & Society, Newcastle University, Newcastle upon Tyne, UK
| | - George Thom
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK
| | - Alex McConnachie
- Robertson Centre for Biostatistics, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Claudia Martina Messow
- Robertson Centre for Biostatistics, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Naveed Sattar
- Institute of Cardiovascular and Medical Science, University of Glasgow, Glasgow, UK
| | - Roy Taylor
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Michael E J Lean
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary & Life Sciences, University of Glasgow, Glasgow, UK
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Thom G, Lean MEJ, Brosnahan N, Algindan YY, Malkova D, Dombrowski SU. 'I have been all in, I have been all out and I have been everything in-between': A 2-year longitudinal qualitative study of weight loss maintenance. J Hum Nutr Diet 2020; 34:199-214. [PMID: 33089558 DOI: 10.1111/jhn.12826] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 08/19/2020] [Accepted: 09/23/2020] [Indexed: 12/14/2022]
Abstract
BACKGROUND Qualitative studies investigating weight management experiences are usually cross-sectional or of short duration, which limits understanding of the long-term challenges. METHODS Eleven women [mean (SD) age 44.9 (9.8) years; body mass index 40.3 (4.0) kg m-2 ] participated in this longitudinal qualitative study, which included up to 20 weeks of total diet replacement (825-853 kcal day-1 ) and ongoing support for weight loss maintenance (WLM), to 2 years. Semi-structured interviews were conducted at baseline and programme end, as well as at key intervals during the intervention. Questions examined five theoretical themes: motivation, self-regulation, habits, psychological resources and social/environmental influences. Data were coded and analysed in nvivo (https://qsrinternational.com/nvivo) using the framework method. RESULTS In total, 64 interviews were completed (median, n = 6 per participant). Mean (SD) weight loss was 15.7 (9.6) kg (14.6% body weight) at 6 months and 9.6 (9.9) kg (8.8% body weight) at 2 years. The prespecified theoretical model offered a useful framework to capture the variability of experiences. Negative aspects of obesity were strong motivations for weight loss and maintenance. Perceiving new routines as sustainable and developing a 'maintenance mindset' was characteristic of 'Maintainers', whereas meeting emotional needs at the expense of WLM goals during periods of stress and negative mood states was reported more often by 'Regainers'. Optimistic beliefs about maintaining weight losses appeared to interfere with barrier identification and coping planning for most participants. CONCLUSIONS People tended to be very optimistic about WLM without acknowledging barriers and this may undermine longer-term outcomes. The potential for regain remained over time, mainly as a result of emotion-triggered eating to alleviate stress and negative feelings. More active self-regulation during these circumstances may improve WLM, and these situations represent important targets for intervention.
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Affiliation(s)
- G Thom
- Human Nutrition, School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - M E J Lean
- Human Nutrition, School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - N Brosnahan
- Human Nutrition, School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - Y Y Algindan
- Department of Clinical Nutrition, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | - D Malkova
- Human Nutrition, School of Medicine, Dentistry and Nursing, University of Glasgow, Glasgow, UK
| | - S U Dombrowski
- Faculty of Kinesiology, University of New Brunswick, Fredericton, New Brunswick, Canada
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13
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Thom G, Dombrowski SU, Brosnahan N, Algindan YY, Lopez-Gonzalez MR, Roditi G, Lean MEJ, Malkova D. Response to comments on “The role of appetite-related hormones, adaptive thermogenesis, perceived hunger and stress in long-term weight-loss maintenance: a mixed methods study”. Eur J Clin Nutr 2020; 74:1115-1116. [DOI: 10.1038/s41430-020-0651-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2020] [Revised: 04/21/2020] [Accepted: 04/23/2020] [Indexed: 11/09/2022]
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Thom G, Dombrowski SU, Brosnahan N, Algindan YY, Rosario Lopez-Gonzalez M, Roditi G, Lean MEJ, Malkova D. The role of appetite-related hormones, adaptive thermogenesis, perceived hunger and stress in long-term weight-loss maintenance: a mixed-methods study. Eur J Clin Nutr 2020; 74:622-632. [PMID: 32020057 DOI: 10.1038/s41430-020-0568-9] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 01/17/2020] [Accepted: 01/20/2020] [Indexed: 12/22/2022]
Abstract
BACKGROUND/OBJECTIVES Weight-loss maintenance is challenging, and few succeed in the long term. This study aimed to explain how appetite-related hormones, adaptive thermogenesis, perceived hunger and stress influence weight-loss maintenance. SUBJECTS/METHODS Fifteen adult women (age, 46.3 ± 9.5 years; BMI, 39.4 ± 4.3 kg/m2) participated in a 24-month intervention, which included 3-5 months total diet replacement (825-853 kcal/d). Body weight and composition (Magnetic Resonance Imaging), resting metabolic rate (indirect calorimetry), and fasting plasma concentration of leptin, ghrelin, glucagon-like peptide-1 (GLP-1), peptide YY (PYY), and growth differentiation factor 15 (GDF-15) were measured at baseline and after weight loss, around 6 months. Perceptions relating to weight-loss maintenance were explored using qualitative interviews. RESULTS Mean (SD) changes in body weight (-13.8 ± 6.3 kg) and total adipose tissue (-11.5 ± 4.9 kg) were significant (P < 0.001). Weight loss was associated with a significant reduction in resting metabolic rate (-291 ± 226 kcal/day, P < 0.001) and adaptive thermogenesis (-150 ± 162 kcal/day, P = 0.003), reduction in leptin (P < 0.001) and GLP-1 (P = 0.015), an increase in ghrelin (P < 0.001), and no changes in PYY and GDF-15. Weight regain between 6 and 24 months (6.1 ± 6.3 kg, P < 0.05) was negatively correlated with GLP-1 at baseline (r = −0.7, P = 0.003) and after weight loss (r = -0.7, P = 0.005). Participants did not report increased hunger after weight loss, and stress-related/emotional eating was perceived as the main reason for regain. CONCLUSIONS Weight regain is more likely with lower fasting GLP-1 at baseline and following weight loss, but psychological aspects of eating behaviour appear as important in attenuating weight-loss maintenance.
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Affiliation(s)
- George Thom
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow Royal Infirmary, Glasgow, UK
| | | | - Naomi Brosnahan
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow Royal Infirmary, Glasgow, UK
| | - Yasmin Y Algindan
- Department of Clinical Nutrition, College of Applied Medical Sciences, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
| | | | - Giles Roditi
- Department of Radiology, Glasgow Royal Infirmary, Glasgow, UK
| | - Michael E J Lean
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow Royal Infirmary, Glasgow, UK
| | - Dalia Malkova
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow Royal Infirmary, Glasgow, UK.
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Lean MEJ, Leslie WS, Barnes AC, Brosnahan N, Thom G, McCombie L, Peters C, Zhyzhneuskaya S, Al-Mrabeh A, Hollingsworth KG, Rodrigues AM, Rehackova L, Adamson AJ, Sniehotta FF, Mathers JC, Ross HM, McIlvenna Y, Welsh P, Kean S, Ford I, McConnachie A, Messow CM, Sattar N, Taylor R. Durability of a primary care-led weight-management intervention for remission of type 2 diabetes: 2-year results of the DiRECT open-label, cluster-randomised trial. Lancet Diabetes Endocrinol 2019; 7:344-355. [PMID: 30852132 DOI: 10.1016/s2213-8587(19)30068-3] [Citation(s) in RCA: 453] [Impact Index Per Article: 90.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 02/13/2019] [Accepted: 02/13/2019] [Indexed: 12/12/2022]
Abstract
BACKGROUND The DiRECT trial assessed remission of type 2 diabetes during a primary care-led weight-management programme. At 1 year, 68 (46%) of 149 intervention participants were in remission and 36 (24%) had achieved at least 15 kg weight loss. The aim of this 2-year analysis is to assess the durability of the intervention effect. METHODS DiRECT is an open-label, cluster-randomised, controlled trial done at primary care practices in the UK. Practices were randomly assigned (1:1) via a computer-generated list to provide an integrated structured weight-management programme (intervention) or best-practice care in accordance with guidelines (control), with stratification for study site (Tyneside or Scotland) and practice list size (>5700 or ≤5700 people). Allocation was concealed from the study statisticians; participants, carers, and study research assistants were aware of allocation. We recruited individuals aged 20-65 years, with less than 6 years' duration of type 2 diabetes, BMI 27-45 kg/m2, and not receiving insulin between July 25, 2014, and Aug 5, 2016. The intervention consisted of withdrawal of antidiabetes and antihypertensive drugs, total diet replacement (825-853 kcal per day formula diet for 12-20 weeks), stepped food reintroduction (2-8 weeks), and then structured support for weight-loss maintenance. The coprimary outcomes, analysed hierarchically in the intention-to-treat population at 24 months, were weight loss of at least 15 kg, and remission of diabetes, defined as HbA1c less than 6·5% (48 mmol/mol) after withdrawal of antidiabetes drugs at baseline (remission was determined independently at 12 and 24 months). The trial is registered with the ISRCTN registry, number 03267836, and follow-up is ongoing. FINDINGS The intention-to-treat population consisted of 149 participants per group. At 24 months, 17 (11%) intervention participants and three (2%) control participants had weight loss of at least 15 kg (adjusted odds ratio [aOR] 7·49, 95% CI 2·05 to 27·32; p=0·0023) and 53 (36%) intervention participants and five (3%) control participants had remission of diabetes (aOR 25·82, 8·25 to 80·84; p<0·0001). The adjusted mean difference between the control and intervention groups in change in bodyweight was -5·4 kg (95% CI -6·9 to -4·0; p<0·0001) and in HbA1c was -4·8 mmol/mol (-8·3 to -1·4 [-0·44% (-0·76 to -0·13)]; p=0·0063), despite only 51 (40%) of 129 patients in the intervention group using anti-diabetes medication compared with 120 (84%) of 143 in the control group. In a post-hoc analysis of the whole study population, of those participants who maintained at least 10 kg weight loss (45 of 272 with data), 29 (64%) achieved remission; 36 (24%) of 149 participants in the intervention group maintained at least 10 kg weight loss. Serious adverse events were similar to those reported at 12 months, but were fewer in the intervention group than in the control group in the second year of the study (nine vs 22). INTERPRETATION The DiRECT programme sustained remissions at 24 months for more than a third of people with type 2 diabetes. Sustained remission was linked to the extent of sustained weight loss. FUNDING Diabetes UK.
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Affiliation(s)
- Michael E J Lean
- Human Nutrition, School of Medicine, Dentistry and Nursing, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Wilma S Leslie
- Human Nutrition, School of Medicine, Dentistry and Nursing, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Alison C Barnes
- Human Nutrition Research Centre, Newcastle University, Newcastle upon Tyne, UK
| | - Naomi Brosnahan
- Human Nutrition, School of Medicine, Dentistry and Nursing, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - George Thom
- Human Nutrition, School of Medicine, Dentistry and Nursing, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Louise McCombie
- Human Nutrition, School of Medicine, Dentistry and Nursing, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Carl Peters
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Sviatlana Zhyzhneuskaya
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Ahmad Al-Mrabeh
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Kieren G Hollingsworth
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Angela M Rodrigues
- Institute of Health & Society, Newcastle University, Newcastle upon Tyne, UK
| | - Lucia Rehackova
- Institute of Health & Society, Newcastle University, Newcastle upon Tyne, UK
| | - Ashley J Adamson
- Human Nutrition Research Centre, Newcastle University, Newcastle upon Tyne, UK
| | - Falko F Sniehotta
- Institute of Health & Society, Newcastle University, Newcastle upon Tyne, UK
| | - John C Mathers
- Human Nutrition Research Centre, Newcastle University, Newcastle upon Tyne, UK
| | | | - Yvonne McIlvenna
- College of Medical, Veterinary & Life Sciences, and General Practice and Primary Care, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Paul Welsh
- Institute of Cardiovascular and Medical Science, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Sharon Kean
- Robertson Centre for Biostatistics, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Ian Ford
- Robertson Centre for Biostatistics, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Alex McConnachie
- Robertson Centre for Biostatistics, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Claudia-Martina Messow
- Robertson Centre for Biostatistics, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Naveed Sattar
- Institute of Cardiovascular and Medical Science, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Roy Taylor
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK.
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McCombie L, Brosnahan N, Ross H, Bell‐Higgs A, Govan L, Lean MEJ. Filling the intervention gap: service evaluation of an intensive nonsurgical weight management programme for severe and complex obesity. J Hum Nutr Diet 2018; 32:329-337. [DOI: 10.1111/jhn.12611] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- L. McCombie
- College of Medical, Veterinary and Life Sciences University of Glasgow Glasgow UK
| | - N. Brosnahan
- College of Medical, Veterinary and Life Sciences University of Glasgow Glasgow UK
| | | | | | - L. Govan
- Phastar Statistical Consultancy Chiswick, London UK
| | - M. E. J. Lean
- College of Medical, Veterinary and Life Sciences University of Glasgow Glasgow UK
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Taylor R, Leslie WS, Barnes AC, Brosnahan N, Thom G, McCombie L, Sattar N, Welsh P, Peters C, Zhyzhneuskaya S, Hollingsworth KG, Al-Mrabeh A, Rodrigues AM, Rehackova L, Adamson AJ, Sniehotta FF, Mathers JC, Ross HM, McIlvenna Y, Kean S, Ford I, McConnachie A, Lean MEJ. Clinical and metabolic features of the randomised controlled Diabetes Remission Clinical Trial (DiRECT) cohort. Diabetologia 2018; 61:589-598. [PMID: 29188339 PMCID: PMC6448967 DOI: 10.1007/s00125-017-4503-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 10/25/2017] [Indexed: 12/26/2022]
Abstract
AIMS/HYPOTHESIS Substantial weight loss in type 2 diabetes can achieve a return to non-diabetic biochemical status, without the need for medication. The Diabetes Remission Clinical Trial (DiRECT), a cluster-randomised controlled trial, is testing a structured intervention designed to achieve and sustain this over 2 years in a primary care setting to determine practicability for routine clinical practice. This paper reports the characteristics of the baseline cohort. METHODS People with type 2 diabetes for <6 years with a BMI of 27-45 kg/m2 were recruited in 49 UK primary care practices, randomised to either best-practice diabetes care alone or with an additional evidence-based weight management programme (Counterweight-Plus). The co-primary outcomes, at 12 months, are weight loss ≥15 kg and diabetes remission (HbA1c <48 mmol/mol [6.5%]) without glucose-lowering therapy for at least 2 months. Outcome assessors are blinded to group assignment. RESULTS Of 1510 people invited, 423 (28%) accepted; of whom, 306 (72%) were eligible at screening and gave informed consent. Seven participants were later found to have been randomised in error and one withdrew consent, leaving 298 (176 men, 122 women) who will form the intention to treat (ITT) population for analysis. Mean (SD) age was 54.4 (7.6) years, duration of diabetes 3.0 (1.7) years, BMI 34.6 (4.4) kg/m2 for all participants (34.2 (4.2) kg/m2 in men and 35.3 (4.6) kg/m2 in women) and baseline HbA1c (on treatment) 59.3 (12.7) mmol/mol (7.6% [1.2%]). The recruitment rate in the intervention and control groups, and comparisons between the subgroups recruited in Scotland and England, showed few differences. CONCLUSIONS/INTERPRETATION DiRECT has recruited a cohort of people with type 2 diabetes with characteristics similar to those seen in routine practice, indicating potential widespread applicability. Over 25% of the eligible population wished to participate in the study, including a high proportion of men, in line with the prevalence distribution of type 2 diabetes. TRIAL REGISTRATION www.controlled-trials.com/ISRCTN03267836 ; date of registration 20 December 2013.
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Affiliation(s)
- Roy Taylor
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | - Wilma S Leslie
- Human Nutrition, School of Medicine, Dentistry and Nursing - GRI Campus, College of Medical, Veterinary and Life Sciences, University of Glasgow, 2nd Floor, New Lister Building, Glasgow Royal Infirmary, 10-16 Alexandra Parade, Glasgow, G31 2ER, UK
| | - Alison C Barnes
- Human Nutrition Research Centre, Institute of Health and Society, Newcastle University, Newcastle upon Tyne, UK
| | - Naomi Brosnahan
- Human Nutrition, School of Medicine, Dentistry and Nursing - GRI Campus, College of Medical, Veterinary and Life Sciences, University of Glasgow, 2nd Floor, New Lister Building, Glasgow Royal Infirmary, 10-16 Alexandra Parade, Glasgow, G31 2ER, UK
- Counterweight Ltd, Corby, Northants, UK
| | - George Thom
- Human Nutrition, School of Medicine, Dentistry and Nursing - GRI Campus, College of Medical, Veterinary and Life Sciences, University of Glasgow, 2nd Floor, New Lister Building, Glasgow Royal Infirmary, 10-16 Alexandra Parade, Glasgow, G31 2ER, UK
| | - Louise McCombie
- Human Nutrition, School of Medicine, Dentistry and Nursing - GRI Campus, College of Medical, Veterinary and Life Sciences, University of Glasgow, 2nd Floor, New Lister Building, Glasgow Royal Infirmary, 10-16 Alexandra Parade, Glasgow, G31 2ER, UK
| | - Naveed Sattar
- Institute of Cardiovascular and Medical Science, University of Glasgow, Glasgow, UK
| | - Paul Welsh
- Institute of Cardiovascular and Medical Science, University of Glasgow, Glasgow, UK
| | - Carl Peters
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | - Sviatlana Zhyzhneuskaya
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | - Kieren G Hollingsworth
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | - Ahmad Al-Mrabeh
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | - Angela M Rodrigues
- Institute of Health and Society, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Lucia Rehackova
- Institute of Health and Society, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - Ashley J Adamson
- Human Nutrition Research Centre, Institute of Health and Society, Newcastle University, Newcastle upon Tyne, UK
| | - Falko F Sniehotta
- Institute of Health and Society, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK
| | - John C Mathers
- Human Nutrition Research Centre, Institute of Cellular Medicine, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | | | - Yvonne McIlvenna
- General Practice and Primary Care, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Sharon Kean
- Robertson Centre for Biostatistics, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Ian Ford
- Robertson Centre for Biostatistics, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Alex McConnachie
- Robertson Centre for Biostatistics, Institute of Health and Wellbeing, University of Glasgow, Glasgow, UK
| | - Michael E J Lean
- Human Nutrition, School of Medicine, Dentistry and Nursing - GRI Campus, College of Medical, Veterinary and Life Sciences, University of Glasgow, 2nd Floor, New Lister Building, Glasgow Royal Infirmary, 10-16 Alexandra Parade, Glasgow, G31 2ER, UK.
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Lean ME, Leslie WS, Barnes AC, Brosnahan N, Thom G, McCombie L, Peters C, Zhyzhneuskaya S, Al-Mrabeh A, Hollingsworth KG, Rodrigues AM, Rehackova L, Adamson AJ, Sniehotta FF, Mathers JC, Ross HM, McIlvenna Y, Stefanetti R, Trenell M, Welsh P, Kean S, Ford I, McConnachie A, Sattar N, Taylor R. Primary care-led weight management for remission of type 2 diabetes (DiRECT): an open-label, cluster-randomised trial. Lancet 2018; 391:541-551. [PMID: 29221645 DOI: 10.1016/s0140-6736(17)33102-1] [Citation(s) in RCA: 1007] [Impact Index Per Article: 167.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2017] [Revised: 11/15/2017] [Accepted: 11/18/2017] [Indexed: 12/21/2022]
Abstract
BACKGROUND Type 2 diabetes is a chronic disorder that requires lifelong treatment. We aimed to assess whether intensive weight management within routine primary care would achieve remission of type 2 diabetes. METHODS We did this open-label, cluster-randomised trial (DiRECT) at 49 primary care practices in Scotland and the Tyneside region of England. Practices were randomly assigned (1:1), via a computer-generated list, to provide either a weight management programme (intervention) or best-practice care by guidelines (control), with stratification for study site (Tyneside or Scotland) and practice list size (>5700 or ≤5700). Participants, carers, and research assistants who collected outcome data were aware of group allocation; however, allocation was concealed from the study statistician. We recruited individuals aged 20-65 years who had been diagnosed with type 2 diabetes within the past 6 years, had a body-mass index of 27-45 kg/m2, and were not receiving insulin. The intervention comprised withdrawal of antidiabetic and antihypertensive drugs, total diet replacement (825-853 kcal/day formula diet for 3-5 months), stepped food reintroduction (2-8 weeks), and structured support for long-term weight loss maintenance. Co-primary outcomes were weight loss of 15 kg or more, and remission of diabetes, defined as glycated haemoglobin (HbA1c) of less than 6·5% (<48 mmol/mol) after at least 2 months off all antidiabetic medications, from baseline to 12 months. These outcomes were analysed hierarchically. This trial is registered with the ISRCTN registry, number 03267836. FINDINGS Between July 25, 2014, and Aug 5, 2017, we recruited 306 individuals from 49 intervention (n=23) and control (n=26) general practices; 149 participants per group comprised the intention-to-treat population. At 12 months, we recorded weight loss of 15 kg or more in 36 (24%) participants in the intervention group and no participants in the control group (p<0·0001). Diabetes remission was achieved in 68 (46%) participants in the intervention group and six (4%) participants in the control group (odds ratio 19·7, 95% CI 7·8-49·8; p<0·0001). Remission varied with weight loss in the whole study population, with achievement in none of 76 participants who gained weight, six (7%) of 89 participants who maintained 0-5 kg weight loss, 19 (34%) of 56 participants with 5-10 kg loss, 16 (57%) of 28 participants with 10-15 kg loss, and 31 (86%) of 36 participants who lost 15 kg or more. Mean bodyweight fell by 10·0 kg (SD 8·0) in the intervention group and 1·0 kg (3·7) in the control group (adjusted difference -8·8 kg, 95% CI -10·3 to -7·3; p<0·0001). Quality of life, as measured by the EuroQol 5 Dimensions visual analogue scale, improved by 7·2 points (SD 21·3) in the intervention group, and decreased by 2·9 points (15·5) in the control group (adjusted difference 6·4 points, 95% CI 2·5-10·3; p=0·0012). Nine serious adverse events were reported by seven (4%) of 157 participants in the intervention group and two were reported by two (1%) participants in the control group. Two serious adverse events (biliary colic and abdominal pain), occurring in the same participant, were deemed potentially related to the intervention. No serious adverse events led to withdrawal from the study. INTERPRETATION Our findings show that, at 12 months, almost half of participants achieved remission to a non-diabetic state and off antidiabetic drugs. Remission of type 2 diabetes is a practical target for primary care. FUNDING Diabetes UK.
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Affiliation(s)
- Michael Ej Lean
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Wilma S Leslie
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Alison C Barnes
- Human Nutrition Research Centre, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | - Naomi Brosnahan
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - George Thom
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Louise McCombie
- Human Nutrition, School of Medicine, Dentistry and Nursing, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, UK
| | - Carl Peters
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | - Sviatlana Zhyzhneuskaya
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | - Ahmad Al-Mrabeh
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | - Kieren G Hollingsworth
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | - Angela M Rodrigues
- Institute of Health and Society, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | - Lucia Rehackova
- Institute of Health and Society, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | - Ashley J Adamson
- Human Nutrition Research Centre, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | - Falko F Sniehotta
- Institute of Health and Society, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | - John C Mathers
- Human Nutrition Research Centre, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | | | - Yvonne McIlvenna
- General Practice and Primary Care, University of Glasgow, Glasgow, UK
| | - Renae Stefanetti
- Wellcome Centre for Mitochondrial Research, Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
| | - Michael Trenell
- Move Lab, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK
| | - Paul Welsh
- Institute of Health and Wellbeing, and Institute of Cardiovascular and Medical Science, University of Glasgow, Glasgow, UK
| | - Sharon Kean
- Robertson Centre for Biostatistics, University of Glasgow, Glasgow, UK
| | - Ian Ford
- Robertson Centre for Biostatistics, University of Glasgow, Glasgow, UK
| | - Alex McConnachie
- Robertson Centre for Biostatistics, University of Glasgow, Glasgow, UK
| | - Naveed Sattar
- Institute of Health and Wellbeing, and Institute of Cardiovascular and Medical Science, University of Glasgow, Glasgow, UK
| | - Roy Taylor
- Newcastle Magnetic Resonance Centre, Institute of Cellular Medicine, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne, UK.
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Leslie WS, Ford I, Sattar N, Hollingsworth KG, Adamson A, Sniehotta FF, McCombie L, Brosnahan N, Ross H, Mathers JC, Peters C, Thom G, Barnes A, Kean S, McIlvenna Y, Rodrigues A, Rehackova L, Zhyzhneuskaya S, Taylor R, Lean MEJ. The Diabetes Remission Clinical Trial (DiRECT): protocol for a cluster randomised trial. BMC Fam Pract 2016; 17:20. [PMID: 26879684 PMCID: PMC4754868 DOI: 10.1186/s12875-016-0406-2] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2015] [Accepted: 01/21/2016] [Indexed: 12/14/2022]
Abstract
Background Despite improving evidence-based practice following clinical guidelines to optimise drug therapy, Type 2 diabetes (T2DM) still exerts a devastating toll from vascular complications and premature death. Biochemical remission of T2DM has been demonstrated with weight loss around 15kg following bariatric surgery and in several small studies of non-surgical energy-restriction treatments. The non-surgical Counterweight-Plus programme, running in Primary Care where obesity and T2DM are routinely managed, produces >15 kg weight loss in 33 % of all enrolled patients. The Diabetes UK-funded Counterpoint study suggested that this should be sufficient to reverse T2DM by removing ectopic fat in liver and pancreas, restoring first-phase insulin secretion. The Diabetes Remission Clinical Trial (DiRECT) was designed to determine whether a structured, intensive, weight management programme, delivered in a routine Primary Care setting, is a viable treatment for achieving durable normoglycaemia. Other aims are to understand the mechanistic basis of remission and to identify psychological predictors of response. Methods/Design Cluster-randomised design with GP practice as the unit of randomisation: 280 participants from around 30 practices in Scotland and England will be allocated either to continue usual guideline-based care or to add the Counterweight-Plus weight management programme, which includes primary care nurse or dietitian delivery of 12-20weeks low calorie diet replacement, food reintroduction, and long-term weight loss maintenance. Main inclusion criteria: men and women aged 20-65years, all ethnicities, T2DM 0-6years duration, BMI 27-45 kg/m2. Tyneside participants will undergo Magnetic Resonance (MR) studies of pancreatic and hepatic fat, and metabolic studies to determine mechanisms underlying T2DM remission. Co-primary endpoints: weight reduction ≥ 15 kg and HbA1c <48 mmol/mol at one year. Further follow-up at 2 years. Discussion This study will establish whether a structured weight management programme, delivered in Primary Care by practice nurses or dietitians, is a viable treatment to achieve T2DM remission. Results, available from 2018 onwards, will inform future service strategy. Trial registration Current Controlled Trials ISRCTN03267836. Date of Registration 20/12/2013 Electronic supplementary material The online version of this article (doi:10.1186/s12875-016-0406-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Wilma S Leslie
- University of Glasgow, University Avenue, Glasgow, G12 8QQ, UK.
| | - Ian Ford
- University of Glasgow, University Avenue, Glasgow, G12 8QQ, UK.
| | - Naveed Sattar
- University of Glasgow, University Avenue, Glasgow, G12 8QQ, UK.
| | | | - Ashley Adamson
- Newcastle University, Newcastle upon Tyne, Tyne and Wear, NE1 7RU, UK.
| | - Falko F Sniehotta
- Newcastle University, Newcastle upon Tyne, Tyne and Wear, NE1 7RU, UK.
| | | | - Naomi Brosnahan
- University of Glasgow, University Avenue, Glasgow, G12 8QQ, UK.
| | | | - John C Mathers
- Newcastle University, Newcastle upon Tyne, Tyne and Wear, NE1 7RU, UK.
| | - Carl Peters
- Newcastle University, Newcastle upon Tyne, Tyne and Wear, NE1 7RU, UK.
| | - George Thom
- University of Glasgow, University Avenue, Glasgow, G12 8QQ, UK.
| | - Alison Barnes
- Newcastle University, Newcastle upon Tyne, Tyne and Wear, NE1 7RU, UK.
| | - Sharon Kean
- University of Glasgow, University Avenue, Glasgow, G12 8QQ, UK.
| | | | - Angela Rodrigues
- Newcastle University, Newcastle upon Tyne, Tyne and Wear, NE1 7RU, UK.
| | - Lucia Rehackova
- Newcastle University, Newcastle upon Tyne, Tyne and Wear, NE1 7RU, UK.
| | | | - Roy Taylor
- Newcastle University, Newcastle upon Tyne, Tyne and Wear, NE1 7RU, UK.
| | - Mike E J Lean
- University of Glasgow, University Avenue, Glasgow, G12 8QQ, UK.
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Morrison D, McLoone P, Brosnahan N, McCombie L, Smith A, Gordon J. A community pharmacy weight management programme: an evaluation of effectiveness. BMC Public Health 2013; 13:282. [PMID: 23537247 PMCID: PMC3616997 DOI: 10.1186/1471-2458-13-282] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Accepted: 03/15/2013] [Indexed: 11/10/2022] Open
Abstract
Background Community pharmacies may offer an accessible way of delivering weight-management programmes but there have been few trials that use clinically significant weight loss outcomes, objective measures of weight and follow-up to 12 months. We aimed to evaluate weight change among patients who used the Counterweight weight management programme delivered by community pharmacies. Methods The Counterweight Programme was introduced into community pharmacies in Fife, Scotland in 2009 for patients with a BMI ≥ 30 kg/m2 or a BMI ≥ 2830 kg/m2 with a co-morbidity in localities in which Counterweight was not available at GP practices. The aim was to achieve an energy deficit of 500-600 kcal per day. Counterweight specialist dietitians delivered training, support and patient information materials to community pharmacies. Patient weight was measured by pharmacy staff at each weight management session. Weight data recorded at each weight management session were used to estimate weight change and attendance at 3, 6 and 12 months. Results Between March 2009 and July 2012, 458 patients were enrolled by the community pharmacies. Three-quarters of patients were women, mean age was 54 (SD 7.4) years and mean BMI 36.1 (SD 5.9) kg/m2. Of 314 patients enrolled for at least 12 months, 32 (10.2% on an intention to treat basis) had achieved the target weight loss of ≥5%; this was 41.6% of those who attended at 12 months representing a mean weight loss of 4.1 kg. Using Last Observation Carried Forward, 15.9% achieved the target weight loss within 12 months of enrolling. There was no significant effect of sex, baseline BMI or age on weight loss. Conclusions The Counterweight pharmacy programme has a similar effectiveness to other primary care based weight management programmes and should be considered as part of a range of services available to a community to manage overweight and obesity.
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Affiliation(s)
- David Morrison
- West of Scotland Cancer Surveillance Unit, Public Health Research Group, Institute of Health and Wellbeing, University of Glasgow, Glasgow G12 8RZ, Scotland, UK
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