NCT03447600

Brief Summary

The aim of this study is to test the hypothesis that dietary weight loss (WL) through alternate day fasting (ADF) will enhance appetite control, health markers and wellbeing following WL compared to standard daily calorie restriction (CR).

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
54

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Mar 2018

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

February 9, 2018

Completed
18 days until next milestone

First Posted

Study publicly available on registry

February 27, 2018

Completed
2 days until next milestone

Study Start

First participant enrolled

March 1, 2018

Completed
10 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 12, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 12, 2018

Completed
Last Updated

November 6, 2020

Status Verified

November 1, 2020

Enrollment Period

10 months

First QC Date

February 9, 2018

Last Update Submit

November 4, 2020

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in energy intake from ad libitum lunch

    Measured changes in ad-libitum energy intake following consumption of formulated test meal in comparison to control

    week 0, week 3 and at study completion, an average of 12 weeks

Secondary Outcomes (11)

  • Change in Visual Analogue Scale (VAS) ratings of appetite

    week 0, week 3 and at study completion, an average of 12 weeks

  • Change in Control of Eating Questionnaire (CoEQ) scale scores

    week 0, week 3 and at study completion, an average of 12 weeks

  • Change in explicit liking of food from Leeds Food Preference Questionnaire

    week 0, week 3 and at study completion, an average of 12 weeks

  • Change in explicit wanting of food from Leeds Food Preference Questionnaire scores

    week 0, week 3 and at study completion, an average of 12 weeks

  • Change in relative preference of food from Leeds Food Preference Questionnaire scores

    week 0, week 3 and at study completion, an average of 12 weeks

  • +6 more secondary outcomes

Study Arms (2)

Alternate day fasting

EXPERIMENTAL

Participants randomised to Alternate Day Fasting weight loss intervention. One day fasting of 25% total energy requirements alternated with one day ad libitum intake until study completion at \>/=5% weight loss which is an average of 12 weeks.

Behavioral: Alternate Day Fasting

Continuous caloric restriction

ACTIVE COMPARATOR

Participants randomised to continuous caloric restriction weight loss intervention. Every day intake of 75% total energy requirements until study completion at \>/=5% weight loss which is an average of 12 weeks.

Behavioral: Continuous dietary restriction

Interventions

25% daily energy requirements every other day until study completion at \>/=5% weight loss which is an average of 12 weeks.

Alternate day fasting

25% daily energy requirements every other day until study completion at \>/=5% weight loss which is an average of 12 weeks.

Continuous caloric restriction

Eligibility Criteria

Age18 Years - 55 Years
Sexfemale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Female participants aged between 18 and 55 years at the time of signing informed consent
  • BMI of 25.0 - 34.9 kg/m2

You may not qualify if:

  • Significant health problems which in the opinion of the investigator, might jeopardise participant's safety or compliance with the protocol
  • Currently enrolled in a weight loss programme or following a specific diet plan.
  • History of eating disorders including binge eating.
  • Taking any medication or supplements known to affect appetite or weight within the past month and/or during the study
  • Pregnant, planning to become pregnant or breastfeeding
  • History of anaphylaxis to food
  • Known food allergies or food intolerance
  • Smokers and those who have recently ceased smoking (\< 6 months)
  • BMI \< 24.9 kg/m2 or \> 35 kg/m2
  • Volunteers having lost significant amount of weight in the previous 6 months (± 4kg)
  • Volunteers who exercise \> 3 days per week or have significantly changed their physical activity patterns in the past 6 months or who intend to change them during the study
  • Participants receiving systemic or local treatment likely to interfere with evaluation of the study parameters
  • Participants who work in appetite or feeding related areas.
  • Participants who do shift work

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Leeds

Leeds, West Yorkshire, LS2 9JT, United Kingdom

Location

Related Publications (1)

  • Beaulieu K, Casanova N, Oustric P, Turicchi J, Gibbons C, Hopkins M, Varady K, Blundell J, Finlayson G. Matched Weight Loss Through Intermittent or Continuous Energy Restriction Does Not Lead To Compensatory Increases in Appetite and Eating Behavior in a Randomized Controlled Trial in Women with Overweight and Obesity. J Nutr. 2020 Mar 1;150(3):623-633. doi: 10.1093/jn/nxz296.

MeSH Terms

Conditions

OverweightObesity

Condition Hierarchy (Ancestors)

OvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Kristine Beaulieu, PhD

    University of Leeds

    PRINCIPAL INVESTIGATOR
  • Graham Finlayson, PhD

    University of Leeds

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
BASIC SCIENCE
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Chair in Psychobiology

Study Record Dates

First Submitted

February 9, 2018

First Posted

February 27, 2018

Study Start

March 1, 2018

Primary Completion

December 12, 2018

Study Completion

December 12, 2018

Last Updated

November 6, 2020

Record last verified: 2020-11

Data Sharing

IPD Sharing
Will not share

Locations