Diet and Exercise Intervention in Type 2 Diabetes (LID)
13 april 2022 uppdaterad av: Washington University School of Medicine
The purpose of this study is to determine the effect of a worksite-based intensive lifestyle therapy intervention (weight loss with exercise training) on blood sugar control in people with obesity and type 2 diabetics.
Studieöversikt
Status
Avslutad
Betingelser
Intervention / Behandling
Detaljerad beskrivning
The purpose of this study is to conduct a randomized, controlled trial in people with obesity and type 2 diabetes to determine the therapeutic effects of intensive lifestyle therapy conducted at the worksite compared to standard care on: i) the major factors involved in the pathogenesis of type 2 diabetes (insulin sensitivity, β-cell function and the metabolic response to glucose ingestion), ii) body composition; iii) physical function (cardiorespiratory fitness and muscle strength); iv) and the potential cellular mechanisms that can affect insulin action in muscle and adipose tissue (fat).
Studietyp
Interventionell
Inskrivning (Faktisk)
18
Fas
- Inte tillämpbar
Kontakter och platser
Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.
Studieorter
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Missouri
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Saint Louis, Missouri, Förenta staterna, 63110
- Washington University School of Medicine
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Deltagandekriterier
Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.
Urvalskriterier
Åldrar som är berättigade till studier
25 år till 68 år (Vuxen, Äldre vuxen)
Tar emot friska volontärer
Nej
Kön som är behöriga för studier
Allt
Beskrivning
Inclusion Criteria:
- Age 25-68 yrs old
- BMI 27.0-50.0 kg/m²
- Diagnosis of type 2 diabetes based on HbA1C>6.5% or results of an oral glucose tolerance test or current use of anti-diabetic medications
- HbA1C ≤9.5 %.
- Work at Washington University in St. Louis, Barnes Jewish Hospital, St. Louis Children's Hospital, Shriners, St. Louis College of Pharmacy, Central Institute for the Deaf, Rehabilitation Institute of St. Louis, and/or any institutions affiliated with these.
Exclusion Criteria:
- Any change in diabetes medication in previous 3 months
- Treated with >0.5 units of insulin/kg body weight per day
- Unstable weight (>2% change during the last 2 months before entering the study)
- History or evidence of serious pulmonary or cardiovascular disease, including acute coronary syndrome, heart failure requiring medications, or New York Heart Association class III heart failure (patients with marked limitation of activity and who are comfortable only at rest) or IV heart failure (patients who should be at complete rest, confined to bed or chair and who have discomfort with any physical activity).
- Evidence of serious cardiac abnormalities during exercise stress testing that increase cardiac risk of initiating an exercise program.
- Creatinine >1.5 mg/dL
- Microalbuminuria; spot urine albumin:creatinine ratio >50 (50 μg albumin/mg creatinine)
- Coagulation disorders
- Anemia (Hemoglobin <10.0 g/dL)
- Liver enzymes (ALT and AST) ≥3 times the upper limit of normal
- Uncontrolled proliferative diabetic retinopathy
- Severe peripheral neuropathy diagnosed by monofilament testing
- Severe organ dysfunction
- Pregnant or breastfeeding
- Participating in regular exercise (>1 h of structured exercise/week)
- Joint replacement within the last year
- Smokes tobacco
- Severe lactose intolerance
- Take any medication that might interfere with interpretation of the metabolic studies
- Unable or unwilling to follow the study protocol or for any reason the research team believes the volunteer is not an appropriate candidate for this study, including non-compliance with screening appointments or previous medical visits.
Studieplan
Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Behandling
- Tilldelning: Randomiserad
- Interventionsmodell: Parallellt uppdrag
- Maskning: Ingen (Open Label)
Vapen och interventioner
Deltagargrupp / Arm |
Intervention / Behandling |
|---|---|
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Övrig: Standard Care
Participants randomized to this arm will receive dietary and physical activity instructions as recommended by the American Diabetes Association (ADA) guidelines.
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After receiving dietary and physical activity instructions as recommended by the American Diabetes Association (ADA) guidelines participants will meet approximately every month for about 7 months with a study team member to record body weight, review diet and physical activity behaviors, and document medication use.
Participants will continue their routine medical management, including regular clinic visits with their personal physician and/or diabetes educator during their participation in this study.
Any changes medications will made by the participants' personal physician(s).
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Experimentell: Intensive Lifestyle intervention
Participants randomized to this arm will be participate in weekly dietary and behavioral education session in addition to four 60-min supervised exercise training sessions per week for 8 months.
All dietary and- behavioral education and exercise training sessions will be conducted at the worksite.
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Participants will be instructed to consume ~500 kcal/day less than their calculated estimated total daily energy requirements.
The supervised exercise program will include both endurance and resistance exercise training sessions.
The doses of diabetes medications will be adjusted by study physicians every 1-2 weeks, as needed to avoid hypoglycemia.
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Vad mäter studien?
Primära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Skeletal muscle insulin sensitivity
Tidsram: 7-8 months
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Skeletal muscle insulin sensitivity will be calculated as the glucose disposal rate per kg fat-free mass divided by plasma insulin during a hyperinsulinemic-euglycemic clamp procedure.
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7-8 months
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Sekundära resultatmått
Resultatmått |
Åtgärdsbeskrivning |
Tidsram |
|---|---|---|
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Liver insulin sensitivity
Tidsram: 7-8 months
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Liver insulin sensitivity will be assessed by using the hepatic insulin sensitivity index.
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7-8 months
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Adipose tissue insulin sensitivity
Tidsram: 7-8 months
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Adipose tissue insulin sensitivity will be assessed by using the adipose tissue insulin sensitivity index.
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7-8 months
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β-cell function
Tidsram: 7-8 months
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β-cell function will be assessed from a modified oral glucose tolerance test
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7-8 months
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Insulin clearance
Tidsram: 7-8 months
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Insulin clearance will be assessed from a modified oral glucose tolerance test
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7-8 months
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Diabetes remission
Tidsram: 7-8 months
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Remission of type 2 diabetes will be defined as HbA1c <6.0% without the use of diabetes medications use of diabetes medications.
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7-8 months
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Cardiorespiratory fitness
Tidsram: 7-8 months
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Peak oxygen consumption will be assessed using indirect calorimetry during a graded exercise test to volitional exhaustion.
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7-8 months
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Muscle strength
Tidsram: 7-8 months
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Muscle strength will be assessed as the total maximal weight lifted during the 1 repetition maximum tests for leg press, knee flexion, seated row, and chest press exercises.
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7-8 months
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Whole-body fat mass
Tidsram: 7-8 months
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Total body fat mass will be assessed by dual-energy X-ray absorptiometry.
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7-8 months
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Whole-body fat-free mass
Tidsram: 7-8 months
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Fat-free mass will be assessed by dual-energy X-ray absorptiometry.
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7-8 months
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Appendicular lean mass
Tidsram: 7-8 months
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Appendicular lean mass will be assessed by dual-energy X-ray absorptiometry.
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7-8 months
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Intra-abdominal adipose tissue volume
Tidsram: 7-8 months
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Intra-abdominal adipose tissue volume will be determined by using magnetic resonance imaging.
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7-8 months
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Intrahepatic triglyceride content
Tidsram: 7-8 months
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Intrahepatic triglyceride content will be determined by using magnetic resonance spectroscopy.
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7-8 months
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Plasma adipokine concentrations
Tidsram: 7-8 months
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Plasma adiponectin and PAI-1 concentrations will be measured in the Washington University Clinical Core Laboratory.
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7-8 months
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Transcriptome in muscle and adipose tissue
Tidsram: 7-8 months
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The transcriptome (all RNA that are responsible for making proteins from DNA templates) will be evaluated by using RNA sequencing techniques.
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7-8 months
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Skeletal muscle mitochondrial metabolites
Tidsram: 7-8 months
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The content of muscle mitochondrial-related metabolites will be determined by liquid chromatography mass spectrometry.
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7-8 months
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Samarbetspartners och utredare
Det är här du hittar personer och organisationer som är involverade i denna studie.
Publikationer och användbara länkar
Den som ansvarar för att lägga in information om studien tillhandahåller frivilligt dessa publikationer. Dessa kan handla om allt som har med studien att göra.
Allmänna publikationer
- Yoshino M, Yoshino J, Smith GI, Stein RI, Bittel AJ, Bittel DC, Reeds DN, Sinacore DR, Cade WT, Patterson BW, Cho K, Patti GJ, Mittendorfer B, Klein S. Worksite-based intensive lifestyle therapy has profound cardiometabolic benefits in people with obesity and type 2 diabetes. Cell Metab. 2022 Oct 4;34(10):1431-1441.e5. doi: 10.1016/j.cmet.2022.08.012. Epub 2022 Sep 8.
- Mittendorfer B, Patterson BW, Smith GI, Yoshino M, Klein S. beta Cell function and plasma insulin clearance in people with obesity and different glycemic status. J Clin Invest. 2022 Feb 1;132(3):e154068. doi: 10.1172/JCI154068.
Studieavstämningsdatum
Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.
Studera stora datum
Studiestart (Faktisk)
1 oktober 2013
Primärt slutförande (Faktisk)
1 juli 2016
Avslutad studie (Faktisk)
1 juli 2016
Studieregistreringsdatum
Först inskickad
14 oktober 2013
Först inskickad som uppfyllde QC-kriterierna
30 oktober 2013
Första postat (Uppskatta)
6 november 2013
Uppdateringar av studier
Senaste uppdatering publicerad (Faktisk)
15 april 2022
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
13 april 2022
Senast verifierad
1 april 2022
Mer information
Termer relaterade till denna studie
Nyckelord
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
- 201302095
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