Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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UNKNOWN
NA
250 participants
INTERVENTIONAL
2013-07-31
2021-12-31
Brief Summary
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Detailed Description
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The main comparison will assess differences in metabolic outcome due to low-carb or low-fat dietary intervention in short- and long-term design.
Additionally, the role of PUFA will be assessed during long-term intervention to achieve better maintenance of metabolic improvements from the first study phase.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
PREVENTION
NONE
Study Groups
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intensive consulting, conventional diet
subjects receive 16 units of nutritional consulting, first 3 weeks of intervention phase are designed as a conventional hypocaloric low-fat diet referring to DGE guidelines (below 30 % fat), followed by 11 months of isocaloric-to-moderate-hypocaloric low-fat diet (below 30 kcal% fat ) - dietary intervention without supplement
dietary consulting
dietary consulting implies specific dietary advice based on pre-interventional self-report regarding food intake; consulting focuses on nutrient content, calory intake, weight loss; with regard to randomisation consulting intensity and content varies
conventional consulting, low-carb diet
subjects receive 8 units of nutritional consulting, first 3 weeks of intervention phase are designed as a very-low calory ketogenic (low-carb) diet (\< 40 g CH / day), following 11 months are restricted to not more than 40 % energy intake by carbohydrates under isocaloric-to-moderate-hypocaloric conditions - dietary intervention without supplement
dietary consulting
dietary consulting implies specific dietary advice based on pre-interventional self-report regarding food intake; consulting focuses on nutrient content, calory intake, weight loss; with regard to randomisation consulting intensity and content varies
conventional consulting, conventional diet
subjects receive 8 units of nutritional consulting, first 3 weeks of intervention phase are designed as a conventional hypocaloric low-fat diet referring to DGE guidelines (below 30 % fat), followed by 11 months of isocaloric-to-moderate-hypocaloric low-fat diet (below 30 kcal% fat) - dietary intervention without supplement
dietary consulting
dietary consulting implies specific dietary advice based on pre-interventional self-report regarding food intake; consulting focuses on nutrient content, calory intake, weight loss; with regard to randomisation consulting intensity and content varies
intensive consulting, low-carb diet
subjects receive 16 units of nutritional consulting, first 3 weeks of intervention phase are designed as a very-low calory ketogenic (low-carb) diet (\< 40 g CH / day), following 11 months are restricted to not more than 40 % energy intake by carbohydrates under isocaloric-to-moderate-hypocaloric conditions - dietary intervention without supplement
dietary consulting
dietary consulting implies specific dietary advice based on pre-interventional self-report regarding food intake; consulting focuses on nutrient content, calory intake, weight loss; with regard to randomisation consulting intensity and content varies
Interventions
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dietary consulting
dietary consulting implies specific dietary advice based on pre-interventional self-report regarding food intake; consulting focuses on nutrient content, calory intake, weight loss; with regard to randomisation consulting intensity and content varies
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
and/or
* impaired glucose tolerance (IGT) 75 g OGTT 120 minutes: 140-200 mg/dl
Exclusion Criteria
* BMI \> 45 kg/m²
* Diabetes mellitus Typ 1 or 2
* serious disease e.g symptomatic coronary heart disease
* serious symptomatic malignant disease (weight loss \> 10% within the last 6 month)
* severe liver or kidney disease ( an increase in transaminases \> 3 times than the upper limit of the standardized range, GFR \< 50 ml/min/1,73m²)
* systemic infection (CRP \> 1 mg/dl)
* severe mental illness
* drug abuse
* treatment with steroids
* potentially incompliant subjects
* any kind of metal in or on the body: cardiac pacemakers prosthetic heart valves metal prosthesis magnetic implanted metallic parts contraceptive coil metal fragments/ grenade shrapnel fixed braces acupuncture needles insulin pump intraport etc. Field strength \> 3 Tesla further tattoos, permanent make-up
* persons with limited thermosensory or heightened sensitivity to heating
* persons where cardiovascular disease cannot be ruled out by examination
* persons with heightened sensitivity to loud noise or diseases of the ear
* used closed whole body scanner: claustrophobia
18 Years
75 Years
ALL
No
Sponsors
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German Diabetes Center
OTHER
German Institute of Human Nutrition
OTHER
Responsible Party
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Prof. Dr. med. Andreas F. H. Pfeiffer
Director / Department for Clinical Nutrition
Principal Investigators
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Andreas FH Pfeiffer, Prof. Dr.
Role: PRINCIPAL_INVESTIGATOR
German Institute of Human Nutrition
Locations
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German Institut for Human Nutrition; Department for Clinical Nutrition
Bergholz-Rehbrücke, Brandenburg, Germany
German Institute for Human Nutrition, Department for Clinical Nutrition
Berlin, , Germany
Countries
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Central Contacts
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Facility Contacts
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Other Identifiers
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DiNA-P
Identifier Type: -
Identifier Source: org_study_id
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