Clinical trials

7

Search and review clinical trials. Use filters to narrow results by trial status, phase, treatment, biological sex and sponsor.

Condition / disease
Location
Status: Recruiting

Cold Water and Decision-Making

The behavioral within-subject cross-over design study "CoVa" aims to investigate the effect of a short-term full-body cold-water immersion vs. warm-water immersion control on value-based choice, psychological well-being, and peripheral physiology.

Participants needed: 40
Trial details
Age: 18-40Biological sex: AllType: InterventionalSponsor: German Institute of Human NutritionUpdated: Apr 21, 2026Locations: 1
Eligibility criteria

18-40 years of age [+5]

Raynaud syndrome [+22]

Status: Not yet recruiting

Breathing and Decision-Making (ProlEx-Context)

The ProlEx-Context study aims to investigate how a slow-paced breathing technique with prolonged exhalation affects decision-making in the context of acute social stress.

Participants needed: 50
Trial details
Age: 18-40Biological sex: AllType: InterventionalSponsor: German Institute of Human NutritionUpdated: Apr 1, 2026
Eligibility criteria

18- to 40-year-old men and women [+11]

Brain or mind (including anxiety disorders, depression, eating disorders, person... [+20]

Status: Recruiting

Precise Eating Time to Improve Glycemic Control and Cardiometabolic Health in Prediabetes and Diabetes

The objective of this study is to investigate the impact of hypocaloric time-restricted eating (TRE) at different day times (early versus late TRE) on glucose metabolism and other cardiometabolic parameters in individuals with overweight and with normal, or impaired glucose metabolism (prediabetes and type 2 diabetes). In addition, the study aims to elucidate the molecular mechanisms underlying these effects.

Participants needed: 30
Trial details
Age: 18-75Biological sex: AllType: InterventionalSponsor: German Institute of Human NutritionUpdated: Sep 12, 2025Locations: 1
Eligibility criteria

Overweight or obesity (BMI 25-40 kg/m²) [+4]

Weight changes > 5% within past 3 months [+7]

Status: Recruiting

PROTeIn-rich Meals to Control Glucose

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.

Participants needed: 30
Trial details
Age: 18-75Biological sex: AllType: InterventionalSponsor: German Institute of Human NutritionUpdated: Aug 26, 2025Locations: 1
Eligibility criteria

Prediabetes (fasting blood sugar 100-125 mg/dl) [+2]

Other diabetes types [+18]

Status: Recruiting

Decision-making and Food Intake

The study will investigate how the expectation of food availability impacts the response to food cues, mood, interoceptive awareness, and consumption of food intake in healthy, naturally cycling women.

Participants needed: 45
Trial details
Age: 18-35Biological sex: FemaleType: InterventionalSponsor: German Institute of Human NutritionUpdated: Aug 21, 2025Locations: 1
Eligibility criteria

Nulliparous women (age: 18-35 years) with a regular menstrual cycle (25-32 days) [+4]

Current or use of hormonal contraceptives in the previous 6 months [+21]

Status: Recruiting

Exogenous Ketones and Behavior

The study will examine the effect of exogenous ketone ester on behavior and metabolism using Virtual Reality and computerizes behavioral tasks.

Participants needed: 45
Trial details
Age: 18-45Biological sex: AllType: InterventionalSponsor: German Institute of Human NutritionUpdated: Jul 29, 2024Locations: 1
Eligibility criteria

Consent to participate [+4]

Brain or mind (including eating disorders, personality disorders, alcohol, drugs... [+10]

Status: Recruiting

Time-restricted Eating and Cognition

This study aims to investigate how time-restricted eating (TRE), more specifically TRE at different times (early vs late in the day), influences brain activity, behavior, decision-making, food intake, physical activity, the gut microbiome and metabolic processes. The study intervention procedure is a replication of that described in Peters et al. (2021).

Participants needed: 35
Trial details
Age: 18-70Biological sex: FemaleType: InterventionalSponsor: German Institute of Human NutritionUpdated: Jul 18, 2024Locations: 1
Eligibility criteria

right-handed [+4]

weight change >5% of body weight during the last 3 months [+35]