POLY-unsaturated Fatty Acids in the Preservation of Dietary Effects on Hepatosteatosis and Energy Metabolism in Type 2 Diabetes

NCT ID: NCT03047668

Last Updated: 2020-07-22

Study Results

Results pending

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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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

200 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-05-31

Study Completion Date

2020-12-31

Brief Summary

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Basic treatment of type 2 diabetes should focus on diet, physical activity and lifestyle. Nevertheless, in early and late stage of T2DM, lifestyle intervention is mostly substituted by pharmacological intervention, although lifestyle modification and dietary treatment would be favourable.

The researchers therefore investigate dietary strategies such as low-carb and very-low calory diets regarding their potential to improve metabolism and body weight in (mostly) long-term T2DM patients. This core comparison is dealt with in the DiNA-D study (published elsewhere).

POLYPHEM targets specific dietary approach to preserve the achieved metabolic improvements from DiNA-D phase 1. Nutritional factors will be PUFAs and BCAAs.

Detailed Description

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Basic treatment of type 2 diabetes should focus on diet, physical activity and lifestyle. Nevertheless, in early and late stage of T2DM, lifestyle intervention is mostly substituted by pharmacological intervention, although lifestyle modification and dietary treatment would be favourable.

The researchers therefore investigate dietary strategies such as low-carb and very-low calory diets regarding their potential to improve metabolism and body weight in (mostly) long-term T2DM patients. This core comparison is dealt with in the DiNA-D study (published elsewhere).

POLYPHEM targets specific dietary approach to preserve the achieved metabolic improvements from DiNA-D phase 1. Nutritional factors for the maintenance period within DiNA-D (11 months) will be PUFAs and BCAAs, provided by walnuts and custom-made muffins containing walnuts, sunflower oil and isomaltulose.

Conditions

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Type 2 Diabetes NAFLD Obesity Dyslipidemia Hypertension Metabolic Syndrome

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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low-carb with PUFA

49 weeks of hypo- to isocaloric low-carb diet (\< 40 EI% carbs), amplified with walnuts and walnut-sunflower muffins

Group Type ACTIVE_COMPARATOR

diet with/without supplementation

Intervention Type DIETARY_SUPPLEMENT

diet with/without supplementation with PUFAs

low-carb without PUFA

49 weeks of hypo- to isocaloric low-carb diet (\< 40 EI% carbs), without walnuts / walnut-sunflower muffins

Group Type ACTIVE_COMPARATOR

diet with/without supplementation

Intervention Type DIETARY_SUPPLEMENT

diet with/without supplementation with PUFAs

low-fat with PUFA

49 weeks of hypo- to isocaloric low-fat diet (\< 30 EI% fat), amplified with walnuts and walnut-sunflower muffins

Group Type ACTIVE_COMPARATOR

diet with/without supplementation

Intervention Type DIETARY_SUPPLEMENT

diet with/without supplementation with PUFAs

low-fat without PUFA

49 weeks of hypo- to isocaloric low-fat diet (\< 30 EI% fat), without walnuts / walnut-sunflower muffins

Group Type ACTIVE_COMPARATOR

diet with/without supplementation

Intervention Type DIETARY_SUPPLEMENT

diet with/without supplementation with PUFAs

Interventions

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diet with/without supplementation

diet with/without supplementation with PUFAs

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* male and female subjects
* 18-79 years old
* type 2 diabetes

Exclusion Criteria

* renal insufficiency
* anaemia
* immunosuppression
* previous symptomatic cancer diagnosis
* acute cardiovascular disease (stroke, coronary syndrome)
* pregnancy and lactation
* severe psychiatric disorders
* corticoid or other immunosuppressive therapy
Minimum Eligible Age

18 Years

Maximum Eligible Age

79 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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German Center for Diabetes Research

OTHER

Sponsor Role collaborator

California Walnut Commission

OTHER

Sponsor Role collaborator

Institute for Cereal Processing GmbH/Institut für Getreideverarbeitung (IGV)

UNKNOWN

Sponsor Role collaborator

German Institute of Human Nutrition

OTHER

Sponsor Role lead

Responsible Party

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Prof. Dr. med. Andreas F. H. Pfeiffer

PI

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Andreas FH Pfeiffer, Prof. Dr. med.

Role: PRINCIPAL_INVESTIGATOR

DIfE

Locations

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DIfE (German Institute for Human Nutrition)

Berlin, , Germany

Site Status RECRUITING

Countries

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Germany

Central Contacts

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Stefan Kabisch, Dr. med.

Role: CONTACT

030 450 514 429

June Inderthal

Role: CONTACT

033200 88 2771

Facility Contacts

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Stefan Kabisch, Dr. med.

Role: primary

030 450 514 429

Other Identifiers

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POLYPHEM

Identifier Type: -

Identifier Source: org_study_id

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