NCT04202133

Brief Summary

This study will assess whether weight loss induced through diet and physical activity can change neural responses to high- and low-calorie food images. In addition, it will evaluate whether weight loss can improve neural function when performing the N-back task, a measure of working memory. Findings will address notable gaps in the literature by testing whether a scalable weight loss intervention can help protect and improve neurocognitive functioning and brain health in individuals with obesity. This study will also provide important information about the effects of weight loss on neuroplasticity in brain regions crucial for memory and cognitive functioning, which will help to inform future interventions aimed at promoting brain health.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
61

participants targeted

Target at P25-P50 for phase_4

Timeline
Completed

Started Nov 2019

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

Study Start

First participant enrolled

November 20, 2019

Completed
13 days until next milestone

First Submitted

Initial submission to the registry

December 3, 2019

Completed
14 days until next milestone

First Posted

Study publicly available on registry

December 17, 2019

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 2, 2021

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 20, 2021

Completed
3.6 years until next milestone

Results Posted

Study results publicly available

February 10, 2025

Completed
Last Updated

February 10, 2025

Status Verified

January 1, 2025

Enrollment Period

1.4 years

First QC Date

December 3, 2019

Results QC Date

January 17, 2024

Last Update Submit

January 16, 2025

Conditions

Keywords

obesityweight lossneuroimagingfMRIbehavioral obesity treatment

Outcome Measures

Primary Outcomes (8)

  • Blood Oxygen Level-dependent (BOLD) Response to High-calorie Foods Cues Minus Neutral Objects in Left Anterior Cingulate Cortex

    Changes in BOLD fMRI response to high-calorie food images

    Change from baseline to 16 weeks

  • Reward-based Eating

    Changes in scores on the Reward-Based Eating Drive Scale; range of 0-52; higher scores indicate higher reward-related eating

    Change from baseline to 16 weeks

  • Food Cravings- Trait (Lack of Control Over Eating)

    Changes in scores on the Food Cravings Questionnaire- Trait (lack of control over eating), range=6-36, higher scores indicate greater cravings

    Change from baseline to 16 weeks

  • Food Preference

    Changes in scores on the Leeds Food Preference Questionnaire

    Change from baseline to 16 weeks

  • Eating Behaviors

    Changes in scores on the Eating Behaviors Questionnaire (liking for high-calorie foods); visual analog scores ranging from 0-100 with higher scores indicating a worse outcome

    Change from baseline to 16 weeks

  • Hippocampal Volume

    Change in hippocampal volume

    Change from baseline to 16 weeks

  • BOLD fMRI Response to the N-back Task

    Changes in BOLD fMRI response to the N-back task

    Change from baseline to 16 weeks

  • Eating Behaviors (Low-calorie Foods)

    Changes in scores on the Eating Behaviors Questionnaire (liking for low-calorie foods); visual analog scores ranging from 0-100 with higher scores indicating a better outcome

    Change from baseline to 16 weeks

Secondary Outcomes (4)

  • N-back Behavioral Performance

    Change from baseline to 16 weeks

  • Percent Weight

    Change from baseline to 16 weeks

  • Eating Behavior

    Change from baseline to 16 weeks

  • Power of Food

    Change from baseline to 16 weeks

Study Arms (2)

WW (formerly Weight Watchers)

EXPERIMENTAL

16-weeks of the group-based WW program

Behavioral: WW (formerly Weight Watchers)

Waitlist Control

OTHER

16-weeks on waitlist then participants will be provided with 16-weeks of the group-based WW program

Behavioral: Waitlist

Interventions

The WW intervention will consist of weekly group workshops for 16 weeks with WW Coaches and Guides.

WW (formerly Weight Watchers)
WaitlistBEHAVIORAL

The waitlist group will have a 16-week waitlist period. After the waitlist period, they will be offered the WW intervention

Waitlist Control

Eligibility Criteria

Age18 Years - 60 Years
Sexfemale(Gender-based eligibility)
Gender Eligibility DetailsFemale
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Ages 18-60 years
  • Female
  • BMI\>30 kg/m2
  • Eligible female patients will be:
  • Non-pregnant
  • Non-lactating
  • Surgically sterile or postmenopausal, or they will agree to continue to use an accepted method of birth control during the study. Acceptable methods of birth control are: hormonal contraceptives; double barrier method (condom with spermicide or diaphragm with spermicide); intrauterine device; surgical sterility; abstinence; and/or postmenopausal status (defined as at least 2 years without menses).
  • Participants must:
  • Understand and be willing to comply with all study-related procedures and agree to participate in the study by giving written informed consent

You may not qualify if:

  • Weight\>158.8 kg (350 lbs, due to scanner weight restrictions)
  • Serious medical risk such as type 1 or 2 diabetes, cancer, or recent cardiac event (e.g., heart attack, angioplasty)
  • Untreated thyroid disease or any changes (type or dose) in thyroid medication in the last 6 months
  • Current psychiatric disorder that significantly interferes with daily living
  • Active suicidal ideation
  • Current substance use disorder (current or in remission \< 1 year)
  • Presence or history of orthopedic circumstances, metallic inserts, pacemaker, claustrophobia, or other conditions that may interfere with magnetic resonance imaging
  • Participation in a structured weight loss program in the prior 6 months
  • WW member within the past 12 months
  • Use of medications known to induce significant weight loss/gain, including chronic use of oral steroids in the past 3 months
  • Psychiatric hospitalization within the past 6 months
  • Loss of \>10 lbs of body weight within the past 3 months
  • History or plans for bariatric surgery
  • Visual, auditory, or other impairment affecting task performance
  • Epilepsy
  • +7 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Pennsylvania

Philadelphia, Pennsylvania, 19104, United States

Location

Related Publications (2)

  • Chao AM, Wadden TA, Cao W, Zhou Y, Maldonado D, Cardel MI, Foster GD, Loughead J. Randomized Controlled Trial of Effects of Behavioral Weight Loss Treatment on Food Cue Reactivity. Nurs Res. 2024 Mar-Apr 01;73(2):91-100. doi: 10.1097/NNR.0000000000000702. Epub 2023 Oct 31.

  • Chao AM, Zhou Y, Erus G, Davatzikos C, Cardel MI, Foster GD, Wadden TA. A randomized controlled trial examining the effects of behavioral weight loss treatment on hippocampal volume and neurocognition. Physiol Behav. 2023 Aug 1;267:114228. doi: 10.1016/j.physbeh.2023.114228. Epub 2023 May 6.

MeSH Terms

Conditions

OverweightObesityWeight Loss

Interventions

Waiting Lists

Condition Hierarchy (Ancestors)

OvernutritionNutrition DisordersNutritional and Metabolic DiseasesBody WeightSigns and SymptomsPathological Conditions, Signs and SymptomsBody Weight Changes

Intervention Hierarchy (Ancestors)

Appointments and SchedulesOrganization and AdministrationHealth Services Administration

Results Point of Contact

Title
Dr. Ariana Chao
Organization
University of Pennsylvanai

Study Officials

  • Ariana M. Chao, PhD, CRNP

    University of Pennsylvania

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

December 3, 2019

First Posted

December 17, 2019

Study Start

November 20, 2019

Primary Completion

April 2, 2021

Study Completion

July 20, 2021

Last Updated

February 10, 2025

Results First Posted

February 10, 2025

Record last verified: 2025-01

Locations