NCT02577549

Brief Summary

This study aims to develop and demonstrate the effectiveness of a systematic, practical, cost-effective diet-induced weight loss and exercise intervention in both urban and rural communities that can reduce pain and improve other clinical outcomes in knee OA patients. This pragmatic community-based trial will determine if the investigators previous findings translate to real-world settings and will address common concerns about barriers to effectiveness/ implementation.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
823

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jan 2016

Longer than P75 for not_applicable

Geographic Reach
1 country

3 active sites

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

October 12, 2015

Completed
4 days until next milestone

First Posted

Study publicly available on registry

October 16, 2015

Completed
3 months until next milestone

Study Start

First participant enrolled

January 1, 2016

Completed
5.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 28, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 28, 2021

Completed
1.8 years until next milestone

Results Posted

Study results publicly available

March 15, 2023

Completed
Last Updated

June 27, 2023

Status Verified

June 1, 2021

Enrollment Period

5.4 years

First QC Date

October 12, 2015

Results QC Date

December 19, 2022

Last Update Submit

June 1, 2023

Conditions

Keywords

Knee PainExerciseDietWeight Loss

Outcome Measures

Primary Outcomes (1)

  • Knee Pain

    To determine whether a pragmatic, community-based, 18-month diet-induced weight-loss and exercise intervention implemented in three North Carolina counties with diverse residential (from urban to rural) and socioeconomic composition significantly decreases knee pain \[as measured by the Western Ontario McMasters Universities Osteoarthritis Index (WOMAC) pain subscale\] in overweight and obese adults with knee Osteoarthritis (OA) compared to an attention-control group - test questions are scored on a scale of 0-4, which correspond to: None (0), Mild (1), Moderate (2), Severe (3), and Extreme (4) - Higher scores on the WOMAC indicate worse pain, stiffness, and functional limitations - The WOMAC measures five items for pain (score range 0-20). Measure Description: Range, 0 to 20 (0, no pain; 2 to 8, mild; \>8 to 14, moderate; and \>14 to 20, severe); between-group MCID = 1.6, calculated as half the SD.

    18 months

Secondary Outcomes (3)

  • Function

    18 months

  • Health Related Quality of Life (SF-36) Physical Subscale

    18 months

  • Mobility (Six Minute Walk)

    18 months

Other Outcomes (1)

  • Cost-effectiveness

    18 months

Study Arms (2)

Diet & Exercise

EXPERIMENTAL

Participants will attend an exercise class 3 days/week for 18 months. The exercise program will consist of a 15-minute aerobic phase, a 20-minute strength training phase, a second 15-minute aerobic phase, and a 10 minute cool down phase. Participant's will also attend individual and group diet sessions. Each participant's minimum weight loss goal will be 10% of baseline body weight.

Behavioral: Diet & Exercise

Attention Control

ACTIVE COMPARATOR

The attention control intervention will cover an 18-month period. There will be five total face to face group meetings over the 18 months, with one meeting each at months 1, 3, 6, 9, and 15; and during the other months (months 2-5, 7-11, 13-17) participants will receive a combination of informational packets, webinars, phone sessions, and/or emails based on continued monitoring of participant needs and delivered via their preferred mode of contact.

Behavioral: Attention Control

Interventions

Diet & ExerciseBEHAVIORAL

Participants will attend exercise and diet classes.

Diet & Exercise

Participants will attend healthy living classes and receive health newsletters and phone calls/emails/texts.

Attention Control

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • age ≥ 50
  • Knee Pain plus American College of Rheumatology (ACR) Criteria for Knee Osteoarthritis
  • BMI = 27 ≥ kg/m2

You may not qualify if:

  • Significant co-morbid disease that would threaten safety or impair ability to participate in interventions or testing (Blindness; Type 1 diabetes; Severe coronary artery disease)
  • Not sufficiently overweight or obese, BMI \< 27 kg/m2
  • Not having knee pain
  • Inability to finish 18-month study or unlikely to be compliant (Planning to leave area \> 2 month during the next 18 months; Unwilling to change eating or physical activity habits; Unwilling to discontinue pain medication use for 3 days prior to testing visit)
  • Age, age \< 50
  • Other conditions that may prohibit the effective delivery of the intervention (Unable to provide own transportation to exercise center; Unable to read or write)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (3)

Johnston County - UNC Chapel Hill

Chapel Hill, North Carolina, 27516, United States

Location

Haywood County - Haywood Regional Medical Center

Waynesville, North Carolina, 28721, United States

Location

Forsyth County - Wake Forest University/Wake Forest University Health Sciences

Winston-Salem, North Carolina, 27109, United States

Location

Related Publications (3)

  • Messier SP, Callahan LF, Beavers DP, Queen K, Mihalko SL, Miller GD, Losina E, Katz JN, Loeser RF, Quandt SA, DeVita P, Hunter DJ, Lyles MF, Newman J, Hackney B, Jordan JM. Weight-loss and exercise for communities with arthritis in North Carolina (we-can): design and rationale of a pragmatic, assessor-blinded, randomized controlled trial. BMC Musculoskelet Disord. 2017 Feb 22;18(1):91. doi: 10.1186/s12891-017-1441-4.

    PMID: 28228115BACKGROUND
  • Messier SP, Beavers DP, Queen K, Mihalko SL, Miller GD, Losina E, Katz JN, Loeser RF, DeVita P, Hunter DJ, Newman JJ, Quandt SA, Lyles MF, Jordan JM, Callahan LF. Effect of Diet and Exercise on Knee Pain in Patients With Osteoarthritis and Overweight or Obesity: A Randomized Clinical Trial. JAMA. 2022 Dec 13;328(22):2242-2251. doi: 10.1001/jama.2022.21893.

  • Messier SP, Gill ME, Mihalko SL, Beavers DP, Queen K, Miller GD, Losina E, Katz JN, Loeser RF, DeVita P, Hunter DJ, Quandt SA, Lyles MF, Hudson D, Callahan LF. Clinical, Health-Related Quality of Life, and Gait Differences Among Obesity Classes in Adults With Knee Osteoarthritis. Arthritis Care Res (Hoboken). 2024 Apr;76(4):503-510. doi: 10.1002/acr.25265. Epub 2024 Jan 16.

MeSH Terms

Conditions

OsteoarthritisMotor ActivityWeight Loss

Interventions

DietExercise

Condition Hierarchy (Ancestors)

ArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic DiseasesBehaviorBody Weight ChangesBody WeightSigns and SymptomsPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Nutritional Physiological PhenomenaDiet, Food, and NutritionPhysiological PhenomenaMotor ActivityMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Results Point of Contact

Title
Dr. Stephen Messier
Organization
Wake Forest University

Study Officials

  • Stephen P Messier, PhD

    Wake Forest University

    PRINCIPAL INVESTIGATOR
  • Leigh Callahan, PhD

    University of North Carolina, Chapel Hill

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

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
SPONSOR

Study Record Dates

First Submitted

October 12, 2015

First Posted

October 16, 2015

Study Start

January 1, 2016

Primary Completion

May 28, 2021

Study Completion

May 28, 2021

Last Updated

June 27, 2023

Results First Posted

March 15, 2023

Record last verified: 2021-06

Data Sharing

IPD Sharing
Will not share

Locations