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Impact of n-3 Polyunsaturated Fatty Acids in a Protein-enriched Diet With Low GI in Type 2 Diabetes Patients (IMPEDE-DM2)

This study has been completed.
Enervit Spa (company)
Information provided by (Responsible Party):
Thomas M Stulnig, Medical University of Vienna Identifier:
First received: November 15, 2011
Last updated: March 14, 2016
Last verified: March 2016
Type 2 diabetes is tightly associated with overweight and obesity. Inflammatory processes are crucial triggers for insulin resistance that paves the way to type 2 diabetes. In a previous study the investigators have shown that n-3 polyunsaturated fatty acids diminish adipose tissue inflammation in morbidly obese non-diabetic subjects. in this observational study the investigators will apply n-3 polyunsaturated fatty acids as addition to a protein-enriched diet with low glycemic index to overweight and obese patients with insulin resistance, prediabetes and manifest type 2 diabetes over up to 6 months. Primary efficacy parameters are changes from baseline in HbA1c and body weight for for type 2 diabetes and all other patients, respectively.

Condition Intervention
Overweight Obese Insulin Resistance Diabetes Dietary Supplement: n-3 PUFA in protein-enriched low-GI diet

Study Type: Observational
Study Design: Observational Model: Case-Only
Time Perspective: Prospective
Official Title: IMpact of n-3 Polyunsaturated Fatty Acids With a Protein-Enriched DiEt With Low Glycemic Index on Metabolic and Inflammatory Parameters in Type 2 Diabetic and Obese Patients: an Observational Pilot Study

Resource links provided by NLM:

Further study details as provided by Thomas M Stulnig, Medical University of Vienna:

Primary Outcome Measures:
  • HbA1c change from baseline (type 2 diabetes patients) [ Time Frame: 3 months ]
  • body weight change from baseline (non-diabetic patients) [ Time Frame: 3 months ]

Secondary Outcome Measures:
  • change from baseline of inflammatory and metabolic parameters [ Time Frame: 3 months ]

Biospecimen Retention:   Samples Without DNA
serum and plasma samples for biochemical analyses

Enrollment: 30
Study Start Date: November 2011
Study Completion Date: March 2015
Primary Completion Date: November 2014 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
overweight or obese diabetic
Dietary Supplement: n-3 PUFA in protein-enriched low-GI diet
3 g per day n-3 polyunsaturated fatty acids in a protein-enriched low-GI diet


Ages Eligible for Study:   18 Years to 75 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
overweight to obese insulin resistant, prediabetic and diabetic patients

Inclusion Criteria:

  • overweight or obesity AND
  • insulin resistant OR pre-diabetes OR type 2 diabetes

Exclusion Criteria:

  • changes in anti-diabetic medication in the lat two months
  • acute illness during the last two weeks
  • HIV infection
  • hepatitis of other clinically significant hepatic disease other than non-alcoholic hepatic steatosis
  • severe or insufficiently treated cardiovascular, renal (GFR-MDRD < 60 ml/min) or pulmonary disease
  • Macroproteinuria (> 300 mg/g creatinine)
  • clinically significant or insufficiently treated thyroid disease
  • anemia
  • active malignant disease
  • inborn or acquired coagulopathy
  Contacts and Locations
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Please refer to this study by its identifier: NCT01474603

Dept. Medicine III, Medical University of Vienna
Vienna, Austria, 1090
Sponsors and Collaborators
Medical University of Vienna
Enervit Spa (company)
  More Information

Publications automatically indexed to this study by Identifier (NCT Number):
Responsible Party: Thomas M Stulnig, Associate Professor, Medical University of Vienna Identifier: NCT01474603     History of Changes
Other Study ID Numbers: IMPEDE-DM2
Study First Received: November 15, 2011
Last Updated: March 14, 2016

Keywords provided by Thomas M Stulnig, Medical University of Vienna:
observational study

Additional relevant MeSH terms:
Insulin Resistance
Body Weight
Signs and Symptoms
Glucose Metabolism Disorders
Metabolic Diseases processed this record on August 18, 2017