NCT02959021

Brief Summary

The purpose of this study is to examine whether a primary care weight management intervention delivered by peer coaches produces greater weight loss than a self-directed program without peer coach support.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
375

participants targeted

Target at P75+ for not_applicable obesity

Timeline
Completed

Started Jan 2017

Longer than P75 for not_applicable obesity

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

November 4, 2016

Completed
4 days until next milestone

First Posted

Study publicly available on registry

November 8, 2016

Completed
2 months until next milestone

Study Start

First participant enrolled

January 1, 2017

Completed
4.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 15, 2021

Completed
4.6 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2025

Completed
Last Updated

December 17, 2025

Status Verified

December 1, 2025

Enrollment Period

4.3 years

First QC Date

November 4, 2016

Last Update Submit

December 12, 2025

Conditions

Keywords

weight lossbehavioralprimary carelifestyle

Outcome Measures

Primary Outcomes (1)

  • body weight

    change in body weight (kg) from baseline to follow-up assessments

    6, 12, and 18 months

Secondary Outcomes (9)

  • physical activity

    6, 12, and 18 months

  • treatment adherence

    6, 12, and 18 months

  • treatment burden

    6, 12, and 18 months

  • treatment satisfaction

    6, 12, and 18 months

  • side effects

    6, 12, and 18 months

  • +4 more secondary outcomes

Study Arms (2)

Self-directed treatment

ACTIVE COMPARATOR

Participants randomly assigned to this arm will receive written and pre-recorded behavioral weight loss intervention materials (i.e., DVDs, online videos), and they will be instructed to work through the materials independently at their own pace. They will have continued physician contact as needed for routine medical care.

Behavioral: weight loss intervention - self directed

Peer coach treatment

EXPERIMENTAL

Participants randomly assigned to this arm will receive a combination of in-person, group-based behavioral weight loss sessions plus individual, telephone contacts. Groups and phone calls will be facilitated by a peer coach interventionist. Similar to the self-directed condition, participants will receive written and pre-recorded intervention materials (i.e., DVDs, online videos). They will also have continued contact with their physician for routine medical care.

Behavioral: weight loss intervention - peer coach

Interventions

Self-directed treatment
Peer coach treatment

Eligibility Criteria

Age21 Years - 75 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 21-75 years
  • Body mass index (BMI) 30-50 kg/m2
  • Receiving primary care services at one of the practices participating in this study

You may not qualify if:

  • Uncontrolled hypertension (blood pressure \>160/100 mm Hg at screening)
  • Any of the following other medical conditions: myocardial infarction or cerebrovascular accident within the last six months; unstable angina within the past six months; NYHA Class III or IV congestive heart failure; type 1 diabetes; cancer requiring treatment in past five years (exception: non-melanoma skin cancer); and chronic lung diseases that limit physical activity
  • Current use of any of the following medications: antipsychotic agents, monoamine oxidase inhibitors, systemic corticosteroids, or chemotherapeutic drugs; prescription weight loss medications (past six months)
  • Unwilling or unable to do any of the following: give informed consent; read/understand English; accept random assignment; travel to the intervention site
  • Likely to relocate out of the area in the next 2 years
  • Participation in another randomized research project
  • Weight loss \> 10 pounds in past six months
  • History of bariatric surgery

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Alabama at Birmingham

Birmingham, Alabama, 35205, United States

Location

MeSH Terms

Conditions

ObesityWeight LossBehavior

Condition Hierarchy (Ancestors)

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

Study Officials

  • Gareth Dutton, PhD

    University of Alabama at Birmingham

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate Professor of Medicine

Study Record Dates

First Submitted

November 4, 2016

First Posted

November 8, 2016

Study Start

January 1, 2017

Primary Completion

April 15, 2021

Study Completion

December 1, 2025

Last Updated

December 17, 2025

Record last verified: 2025-12

Data Sharing

IPD Sharing
Will share

With the documented permission of the IRB, the PI may develop a transportable de-identified database, codebook, and mechanism by which data can be shared with qualified investigators. Interested investigators will be asked to complete a standardized request form stating the specific aims of the analyses, the analytic plan, available resources for completing the proposed project, proposed timeline, and goals (i.e., manuscripts, presentations, and/or grant applications). The PI and research team will review these requests to determine whether the proposed analyses constitute an innovative and significant exploration of the data, whether the proposed team has sufficient resources to complete the request, and whether data will be adequately protected and managed. If any of these issues are problematic, the PI and research team will attempt to negotiate a fair resolution with the interested investigators and NIH program staff.

Locations