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NCT02585323

SuPRA: Using Wearable Activity Trackers With a New Application to Improve Physical Activity in Knee Osteoarthritis

Completed NA Results posted Last updated 6 October 2025
What this trial tests

NA trial testing Education session, Fitbit/FitViz, PT counselling in Joint Diseases in 51 participants. Completed in 26 August 2019.

Timeline
1 April 2017
Primary endpoint
21 August 2019
26 August 2019

Quick facts

Lead sponsorUniversity of British Columbia
PhaseNA
StatusCompleted
Study typeINTERVENTIONAL
Allocationrandomized
Designcrossover
Maskingnone
Primary purposesupportive care
Enrollment51
Start date1 April 2017
Primary completion21 August 2019
Estimated completion26 August 2019
Sites2 locations across Canada

Drugs / interventions tested

Conditions studied

Sponsor

University of British Columbia

Who can join

19 and older, any sex, with Joint Diseases or Knee Osteoarthritis. Patients with the condition only — healthy volunteers not accepted.

Results — posted to ClinicalTrials.gov

Per-arm endpoint measurements with 95% confidence intervals where reported. Source: trial results section.

Daily Number of Minutes in Moderate/Vigorous Physical Activity Primary · Baseline, 13 weeks, 26 weeks, 39 weeks

Time spent in Moderate/Vigorous Physical Activity (MVPA) was measured with a SenseWear Mini sensor over a 7-day period. The mean time was calculated in bouted MVPA per day. A bout is defined as \>= 10 consecutive minutes or more at the level of \>= 3 METs (i.e., the lower bound of MVPA), with allowance for interruption of up to two minutes below the threshold.

Baseline (T0)
GroupValue95% CI
Immediate Group31.0± 37.3
Delayed Group71.3± 99.8
13 weeks (T1)
GroupValue95% CI
Immediate Group37.7± 30.5
Delayed Group49.4± 63.6
26 weeks (T2)
GroupValue95% CI
Immediate Group37.0± 32.3
Delayed Group74.6± 102.1
39 weeks (T3)
GroupValue95% CI
Immediate Group34.0± 25.2
Delayed Group54.8± 66.2
Daily Number of Sedentary Minutes Secondary · Baseline, 13 weeks, 26 weeks, 39 weeks

Time spent in sedentary behaviour was measured with a SenseWear Mini sensor over a 7-day period. The mean daily time spent in sedentary activity was calculated with an energy expenditure of \<=1.5 METs, occurring in bouts of \>= 20 minutes during waking hours.

Baseline (T0)
GroupValue95% CI
Immediate Group567.5± 183.1
Delay Group551.1± 234.9
13 weeks (T1)
GroupValue95% CI
Immediate Group531.4± 173.5
Delay Group558.3± 224.9
26 weeks (T2)
GroupValue95% CI
Immediate Group492.5± 156.6
Delay Group499.5± 248.9
39 weeks (T3)
GroupValue95% CI
Immediate Group502.8± 135.3
Delay Group483.1± 225.4
Knee Injury and Osteoarthritis Outcome Score (KOOS) - Symptom Secondary · Baseline, 13 weeks, 26 weeks, 39 weeks

The Symptom Subscale ranges from 0 - 100, with 0 indicates extreme knee symptoms and 100 indicates no knee symptoms.

Baseline (T0)
GroupValue95% CI
Immediate Group68.5± 10.7
Delayed Group65.7± 12.3
13 weeks (T1)
GroupValue95% CI
Immediate Group69.3± 12.7
Delayed Group66.9± 14.9
26 weeks (T2)
GroupValue95% CI
Immediate Group65.4± 45.8
Delayed Group72.2± 16.8
39 weeks (T3)
GroupValue95% CI
Immediate Group68.4± 16.3
Delayed Group72.5± 13.3
Knee Injury and Osteoarthritis Outcome Score (KOOS) - Pain Secondary · Baseline, 13 weeks, 26 weeks, 39 weeks

The Pain Subscale ranges from 0 - 100, with 0 indicates extreme knee pain and 100 indicates no knee pain.

Baseline (T0)
GroupValue95% CI
Immediate Group72.6± 13.5
Delay Group65.1± 13.7
13 weeks (T1)
GroupValue95% CI
Immediate Group73.1± 15.3
Delay Group65.9± 15.6
26 weeks (T2)
GroupValue95% CI
Immediate Group72.5± 18.3
Delay Group74.8± 15.4
39 weeks (T3)
GroupValue95% CI
Immediate Group72.1± 19.8
Delay Group72.8± 13.2
Knee Injury and Osteoarthritis Outcome Score (KOOS) - Sport and Recreation Secondary · Baseline, 13 weeks, 26 weeks, 39 weeks

The Sport and Recreation Subscale ranges from 0 - 100, with 0 indicates extreme difficulties with sport and recreational activities due to knee problems and 100 indicates no difficulties.

Baseline (T0)
GroupValue95% CI
Immediate Group47.9± 23.7
Delay Group46.8± 25.4
13 weeks (T1)
GroupValue95% CI
Immediate Group47.1± 22.4
Delay Group52.5± 22.7
26 weeks (T2)
GroupValue95% CI
Immediate Group50.5± 30.1
Delay Group62.5± 22.5
39 weeks (T3)
GroupValue95% CI
Immediate Group51.6± 30.4
Delay Group55.8± 26.3
Knee Injury and Osteoarthritis Outcome Score (KOOS) - Activity of Daily Living Secondary · Baseline, 13 weeks, 26 weeks, 39 weeks

The Activity of Daily Living Subscale ranges from 0 - 100, with 0 indicates extreme difficulties with activity of daily living and 100 indicates no difficulties.

Baseline (T0)
GroupValue95% CI
Immediate Group75.5± 14.7
Delay Group72.2± 15.8
13 weeks (T1)
GroupValue95% CI
Immediate Group75.0± 13.1
Delay Group70.3± 16.9
26 weeks (T2)
GroupValue95% CI
Immediate Group77.7± 18.9
Delay Group80.3± 13.1
39 weeks (T3)
GroupValue95% CI
Immediate Group74.8± 20.7
Delay Group80.0± 14.0
Knee Injury and Osteoarthritis Outcome Score (KOOS) - Quality of Life Secondary · Baseline, 13 weeks, 26 weeks, 39 weeks

The Quality of Life Subscale ranges from 0 - 100, with 0 indicates extreme problems with the knee and 100 indicates no problems.

Baseline (T0)
GroupValue95% CI
Immediate Group44.0± 16.0
Delay Group47.5± 16.0
13 weeks (T1)
GroupValue95% CI
Immediate Group48.7± 17.5
Delay Group46.9± 13.6
26 weeks (T2)
GroupValue95% CI
Immediate Group49.4± 15.7
Delay Group54.7± 14.7
39 weeks (T3)
GroupValue95% CI
Immediate Group49.3± 19.1
Delay Group54.4± 14.6
The Patient Health Questionnaire-9 (PHQ-9) Secondary · Baseline, 13 weeks, 26 weeks, 39 weeks

The PHQ-9 consists of nine questions (rated from 0 to 3) that correspond to nine diagnostic criteria for major depressive disorder. Range 0-27; lower score = less depressive symptoms),

Baseline (T0)
GroupValue95% CI
Immediate Group5.2± 4.6
Delay Group5.4± 5.3
13 weeks (T1)
GroupValue95% CI
Immediate Group4.0± 3.0
Delay Group4.7± 4.9
26 weeks (T2)
GroupValue95% CI
Immediate Group3.6± 3.3
Delay Group4.5± 5.2
39 weeks (T3)
GroupValue95% CI
Immediate Group4.2± 4.1
Delay Group4.5± 5.3
Partners in Health Scale Secondary · Baseline, Months 3, 6, and 9

The Partners in Health Scale ranges from 0 to 96, calculated from responses to 12 items on a 9-point Likert scale. A score of 0 represents poor self-management, and a score of 96 represents greater self-management capabilities.

Baseline (T0)
GroupValue95% CI
Immediate Group76.8± 11.0
Delay Group78.0± 12.0
13 weeks (T1)
GroupValue95% CI
Immediate Group76.7± 11.5
Delay Group81.6± 9.6
26 weeks (T2)
GroupValue95% CI
Immediate Group78.9± 9.0
Delay Group82.6± 9.3
29 weeks (T3)
GroupValue95% CI
Immediate Group81.0± 7.0
Delay Group82.6± 10.0
Self-Reported Habit Index (SRHI) - Sitting at Work Subscale Secondary · Baseline, 13 weeks, 26 weeks, 39 weeks

The SRHI is a 12-item scale, rated on a 7-point Likert scale, that measures characteristics of habitual behavior. In the Habit index, participants rated their strength of habit for three specific activity-related behaviors: sitting during leisure time at home, sitting during usual occupational activities, and walking outside for 10 minutes. A higher score indicates a stronger habit or behavior that is done frequently, automatically, and done without thinking about it. Range 1-7; higher score = stronger habit.

Baseline (T0)
GroupValue95% CI
Immediate Group5.0± 1.4
Delay Group4.5± 2.1
13 weeks (T1)
GroupValue95% CI
Immediate Group5.2± 1.6
Delay Group4.4± 2.0
26 weeks (T2)
GroupValue95% CI
Immediate Group4.7± 2.1
Delay Group4.3± 2.1
39 weeks (T3)
GroupValue95% CI
Immediate Group5.0± 1.9
Delay Group4.1± 2.1
Self-Reported Habit Index (SRHI) - Sitting at Leisure Subscale Secondary · Baseline, 13 weeks, 26 weeks, 39 weeks

The SRHI is a 12-item scale, rated on a 7-point Likert scale, that measures characteristics of habitual behavior. In the Habit index, participants rated their strength of habit for three specific activity-related behaviors: sitting during leisure time at home, sitting during usual occupational activities, and walking outside for 10 minutes. A higher score indicates a stronger habit or behavior that is done frequently, automatically, and done without thinking about it. Range 1-7; higher score = stronger habit.

Baseline (T0)
GroupValue95% CI
Immediate Group4.8± 1.1
Delay Group5.1± 1.4
13 weeks (T1)
GroupValue95% CI
Immediate Group5.1± 1.1
Delay Group4.7± 1.6
26 weeks (T2)
GroupValue95% CI
Immediate Group5.0± 1.1
Delay Group4.4± 1.9
39 weeks (T3)
GroupValue95% CI
Immediate Group5.5± 1.1
Delay Group4.7± 1.7
Self-Reported Habit Index (SRHI) - Walking Subscale Secondary · Baseline, 13 weeks, 26 weeks, 39 weeks

The SRHI is a 12-item scale, rated on a 7-point Likert scale, that measures characteristics of habitual behavior. In the Habit index, participants rated their strength of habit for three specific activity-related behaviors: sitting during leisure time at home, sitting during usual occupational activities, and walking outside for 10 minutes. A higher score indicates a stronger habit or behavior that is done frequently, automatically, and done without thinking about it. Range 1-7; higher score = stronger habit.

Baseline (T0)
GroupValue95% CI
Immediate Group4.3± 1.8
Delay Group4.8± 2.0
13 weeks (T1)
GroupValue95% CI
Immediate Group4.4± 1.6
Delay Group4.6± 2.0
26 weeks (T2)
GroupValue95% CI
Immediate Group4.6± 1.8
Delay Group4.8± 1.6
39 weeks (T3)
GroupValue95% CI
Immediate Group4.7± 1.8
Delay Group4.6± 1.8

Adverse events — posted to ClinicalTrials.gov

Time frame: 39 weeks. Reporting threshold: 0%. Adverse-event reports describe events observed during the trial — not all are caused by the drug.

Immediate Group
Serious: 0/26 (0%)
Deaths: 0/26
Delay Group
Serious: 0/25 (0%)
Deaths: 0/25
Other adverse events (3 terms — click to expand)

ReactionSystemImmediate GroupDelay Group
Muscle painMusculoskeletal and connective tissue disorders
Fall during physical activityMusculoskeletal and connective tissue disorders
Ligament sprainMusculoskeletal and connective tissue disorders

Data from ClinicalTrials.gov NCT02585323 adverse events section.

Sponsor's own description

Physical activity is an essential first-line treatment for patients with knee osteoarthritis (OA). However, only 13% of patients meet the activity recommendation of 150 minutes or more per week. The primary goal of this randomized controlled trial is to assess the efficacy of a Fitbit Flex (a wireless physical activity tracking device) paired with a new application, plus a brief education session and telephone counselling by a physiotherapist (PT), to improve physical activity and reduce sedentary time in patients with knee osteoarthritis.

Publications & conference data

2 peer-reviewed publications reference this trial (live from Europe PMC):

  1. A Community-Based Physical Activity Counselling Program for People With Knee Osteoarthritis: Feasibility and Preliminary Efficacy of the Track-OA Study.
    Li LC, Sayre EC, Xie H, Xie H, et al · · 2017 · cited 53× · PMID 28652228 · DOI 10.2196/mhealth.7863
  2. Effects of a 12-Week Multifaceted Wearable-Based Program for People With Knee Osteoarthritis: Randomized Controlled Trial.
    Li LC, Feehan LM, Xie H, Xie H, et al · · 2020 · cited 42× · PMID 32618578 · DOI 10.2196/19116

Verify or expand the search:

Other recruiting trials for Joint Diseases

Currently open trials in the same condition.

Other University of British Columbia trials

Trials by the same sponsor.

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