PROTeIn-rich Meals to Control Glucose

NCT ID: NCT06382480

Last Updated: 2025-08-26

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

RECRUITING

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-04-12

Study Completion Date

2027-02-28

Brief Summary

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The overall aim is to identify the dietary pattern for prevention and treatment of type 2 diabetes. The specific aim of this pilot project is to compare effects of two diets with different diurnal distribution of carbohydrates and protein on the glucose metabolism in subjects with prediabetes and type 2 diabetes and its effects on inflammatory status.

Detailed Description

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Overweight individual with prediabetes and non-insulin treated type 2 diabetes will be recruited for the study. The trial will have a cross-over design and compare metabolic effects of two isocaloric 4-week interventions with opposite timely distribution of macronutrient intake - a high-protein (HP) breakfast and a high-carb (HC) dinner (HP/HC intervention) vs. a HC breakfast and a HP dinner (HC/HP intervention) - divided by a 4-week wash-out phase. A HP low-carb meal (breakfast or dinner) will contain 35%E protein, 35%E carbs, and 30%E fat, and a HC meal (breakfast or dinner) will contain 10E%protein, 60%E carbs, and 30%E fat.

Conditions

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Overweight Obesity Prediabetes Type 2 Diabetes

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

The trial will have a cross-over design and compare metabolic effects of two isocaloric 4-week interventions with opposite timely distribution of macronutrient intake divided by a 4-week wash-out phase.
Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

NONE

Study Groups

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HP/HC - HC/HP

Isocaloric 4-week HP/HC intervention followed by a 4-week HC/HP intervention.

Group Type EXPERIMENTAL

Diet with specific macronutrient composition.

Intervention Type OTHER

The intervention is about an isocaloric diet that differs in terms of distribution of carbohydrates and protein throughout the day. The interventions include a HP-breakfast and a HC-dinner vs. a HC-breakfast and a HP-dinner. A HP low-carb meal (breakfast or dinner) will contain 35%E protein, 35%E carbs, and 30%E fat, and a HC meal (breakfast or dinner) will contain 10%E protein, 60%E carbs, and 30%E fat.

HC/HP - HP/HC

Isocaloric 4-week HC/HP intervention followed by a 4-week HP/HC intervention.

Group Type EXPERIMENTAL

Diet with specific macronutrient composition.

Intervention Type OTHER

The intervention is about an isocaloric diet that differs in terms of distribution of carbohydrates and protein throughout the day. The interventions include a HP-breakfast and a HC-dinner vs. a HC-breakfast and a HP-dinner. A HP low-carb meal (breakfast or dinner) will contain 35%E protein, 35%E carbs, and 30%E fat, and a HC meal (breakfast or dinner) will contain 10%E protein, 60%E carbs, and 30%E fat.

Interventions

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Diet with specific macronutrient composition.

The intervention is about an isocaloric diet that differs in terms of distribution of carbohydrates and protein throughout the day. The interventions include a HP-breakfast and a HC-dinner vs. a HC-breakfast and a HP-dinner. A HP low-carb meal (breakfast or dinner) will contain 35%E protein, 35%E carbs, and 30%E fat, and a HC meal (breakfast or dinner) will contain 10%E protein, 60%E carbs, and 30%E fat.

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Prediabetes (fasting blood sugar 100-125 mg/dl)
* Diabetes type 2 (fasting blood sugar \>126 mg/dl)
* Overweight and obesity (BMI 25-50 kg/m2)

Exclusion Criteria

* Other diabetes types
* Insulin treatment
* Shift work
* Weight changes \>5% within past 3 months
* Systemic glucocorticoid therapy
* Systemic infections
* Severe anemia
* High blood pressure (\>180/110 mmHg)
* Endocrinologic, liver and heart disorders
* Immune diseases
* Thyroid dysfunction
* Heart attack or stroke
* Cancer in the last 2 years
* Eating disorders, food intolerance/allergy, addiction disorders, digestive disorders intestinal, liver, cardiovascular diseases
* Hereditary or acquired coagulation disorders
* Non-interruptible intake of blood thinners (anticoagulants)
* Specific diets, intermittent fasting
* Pregnancy or breastfeeding
* Severe internal or psychiatric disorders or other conditions and drugs therapy that might influence the outcome of the study
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Charite University, Berlin, Germany

OTHER

Sponsor Role collaborator

Helmholtz Center Munich

UNKNOWN

Sponsor Role collaborator

Hasso Plattner Institute, Potsdam, Germany

UNKNOWN

Sponsor Role collaborator

German Institute of Human Nutrition

OTHER

Sponsor Role lead

Responsible Party

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Olga Ramich (formerly Pivovarova)

Head of Research Group Molecular Nutritional Medicine

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Olga Ramich, PD Dr.

Role: PRINCIPAL_INVESTIGATOR

German Institute of Human Nutrition

Locations

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Olga Ramich

Potsdam, Potsdam-Rehbrücke, Germany

Site Status RECRUITING

Countries

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Germany

Central Contacts

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Olga Ramich, PD Dr.

Role: CONTACT

+4933200882749

Marina D´Urso

Role: CONTACT

+4933200882690

Facility Contacts

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Olga Ramich, PD Dr.

Role: primary

+4933200882749

Marina D'Urso

Role: backup

+4933200882690

Other Identifiers

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90/2023

Identifier Type: -

Identifier Source: org_study_id

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