Time-To-Eat - A pilot study on a circadian diet

Time-To-Eat - A pilot study on a circadian diet - Time-To-Eat

Status

Active, not recruiting

Phases

Phase 1

Study type

Interventional

Source

DRKS

Registry ID

DRKS00021419

Enrollment

100

Registered

2020-08-21

Start date

2020-09-01

Completion date

Unknown

Last updated

2025-04-07

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Normal to overweight/obesity: BMI = 22 kg/m2

Interventions

Group 1: Psychoeducation, creation of a personalised meal plan, electronic diary on eating behaviour over a period of 6 weeks. Voluntary follow-up after a further 4 weeks. Group 2: Sham psychoeducatio

Eligibility

Sex/Gender

All

Age

18 Years to 65 Years

Inclusion criteria

Inclusion criteria: All persons to whom the exclusion criteria listed below do not apply. Special emphasis is placed on the assessment of the test persons' ability to understand. Subjects are only included in the study if they are able to assess the nature and scope of the investigations. Written consent is required for inclusion. The study is conducted in accordance with the principles of the Helsinki Declaration with its amendments of Tokyo, 1975, Hong Kong, 1989, Somerset West, 1996, Seoul, 2008 and Fortaleza, 2013. The subjects must have a BMI = 22 kg/m2. At present, no serious mental or metabolic diseases and no current dietary habits should be present.

Exclusion criteria

Exclusion criteria: Inability to give consent, pregnancy, current diet, intellectual, neurological or physical impairment, no serious mental or metabolic diseases, substance addictions, blindness, dependence on help with eating or going to bed (e.g. like bedridden patients).

Design outcomes

Primary

Measure	Time frame
The primary objectives of the study are body weight and body mass index of the subjects (all variables are collected weekly).	—

Secondary

Measure	Time frame
The secondary objectives are subjective physical and psychological well-being (Health Status Questionnaire, SF-36), self-efficacy (Scale of General Self-Efficacy Expectations, SWE), the degree of depression (Inventory of Depressive Symptoms Self Revaluation, IDS-SR; Positive and Negative Affect Schedule, PANAS; Hamilton Depression Rating Scale, HAMD) as well as the Pittsburgh Sleep Quality Index (PSQI) and the chronotype (Munich Chronotype questionnaire, MCTQ). Furthermore, the subjective eating behaviour will be surveyed with a self-designed questionnaire.	—

Measure

Time frame

The secondary objectives are subjective physical and psychological well-being (Health Status Questionnaire, SF-36), self-efficacy (Scale of General Self-Efficacy Expectations, SWE), the degree of depression (Inventory of Depressive Symptoms Self Revaluation, IDS-SR; Positive and Negative Affect Schedule, PANAS; Hamilton Depression Rating Scale, HAMD) as well as the Pittsburgh Sleep Quality Index (PSQI) and the chronotype (Munich Chronotype questionnaire, MCTQ). Furthermore, the subjective eating behaviour will be surveyed with a self-designed questionnaire.

—

Countries

Germany

Contacts

Public ContactDominic Landgraf

AG Circadiane Biologie Klinik für Psychiatrie und Psychotherapie der Universität München

dominic.landgraf@med.uni-muenchen.de089 4400 52753

Outcome results

None listed

Source: DRKS (via WHO ICTRP) · Data processed: Feb 4, 2026