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Trial details imported from ClinicalTrials.gov

For full trial details, please see the original record at https://clinicaltrials.gov/study/NCT04733053




Registration number
NCT04733053
Ethics application status
Date submitted
13/01/2021
Date registered
1/02/2021
Date last updated
16/05/2023

Titles & IDs
Public title
Effects of a Physiotherapist-delivered Dietary Weight Loss Program in People With Knee OA Who Have Overweight/Obesity
Scientific title
The POWER Study: Effects of a Physiotherapist-delivered Dietary Weight Loss Program in Addition to Exercise in People With Knee Osteoarthritis Who Have Overweight or Obesity - a Randomised Controlled Trial
Secondary ID [1] 0 0
U1111-1261-5151
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Knee Osteoarthritis 0 0
Condition category
Condition code

Intervention/exposure
Study type
Interventional
Description of intervention(s) / exposure
Comparator / control treatment
Control group

Outcomes

Eligibility
Key inclusion criteria
* Meet the National Institute for Health and Care Excellence [47] clinical criteria for OA: age=45 years; activity-related knee joint pain; morning knee stiffness = 30 mins
* report history of knee pain = 3 months
* report knee pain on most days of the past month
* report a minimum knee pain score of 4 on an 11-point numeric rating scale during walking over the previous week
* body mass index (BMI) >27 kg/m2
* those using hypertensive medication must be willing to have their blood pressure checked (this can be self-monitoring, at a pharmacist or at a GP) if they feel light-headed or dizzy at any point during the study
* able to give informed consent and to participate fully in the interventions and assessment procedures
Minimum age
45 Years
Maximum age
80 Years
Sex
Both males and females
Can healthy volunteers participate?
No
Key exclusion criteria
* weight >150 kgs (due to the added complexities of additional nutritional requirements for individuals above this weight)
* inability to speak English
* on waiting list for/planning knee/hip surgery or bariatric surgery in next 6 months
* arthroplasty on affected knee
* recent knee surgery on affected knee (past 6 months);
* self-reported inflammatory arthritis (e.g. rheumatoid arthritis)
* weight loss of > 2 kg over the previous 3 months
* already actively trying to lose weight by any of the following mechanisms:using meal replacements for weight loss; being a member of a slimming club (e.g. weight watchers); receiving support from another health care professional for weight loss; using any drugs prescribed to aid in weight loss; using structured meal programs for weight loss such as 'Lite n' Easy'
* unwilling to continue current dietary patterns if randomized to exercise only group
* unable to undertake ketogenic VLCD for medical reasons including self-reported: diagnosis of Type 1 diabetes;Type 2 diabetes requiring insulin or other medication apart from metformin; Warfarin use; stroke or cardiac event in previous 6 months; unstable cardiovascular conditions; fluid intake restrictions; renal (kidney) problems (unless clearance is obtained from a general practitioner (GP), including GP confirmation that estimated glomerular filtration rate >30 mL/min/1.73m2); any neurological condition affecting lower limbs; vegan dietary requirements due to complexity of delivering a nutritionally complete diet within the ketogenic diet regime

Study design
Purpose of the study
Treatment
Allocation to intervention
Randomised controlled trial
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Blinded (masking used)
Who is / are masked / blinded?


The people assessing the outcomes
The people analysing the results/data
Intervention assignment
Parallel
Other design features
Phase
Not applicable
Type of endpoint/s
Statistical methods / analysis

Recruitment
Recruitment status
Completed
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Anticipated
Actual
29/10/2021
Date of last participant enrolment
Anticipated
Actual
Date of last data collection
Anticipated
Actual
1/05/2023
Sample size
Target
Accrual to date
Final
88
Recruitment in Australia
Recruitment state(s)

Funding & Sponsors
Primary sponsor type
Other
Name
University of Melbourne
Address
Country

Ethics approval
Ethics application status

Summary
Brief summary
The aim of this randomized controlled trial is to evaluate the effects of a physiotherapist-delivered dietary weight loss program on clinical outcomes among people with knee osteoarthritis (OA) who have overweight or obesity. The primary hypothesis is that a physiotherapist-delivered dietary weight loss plus exercise program will be more effective in achieving weight loss than a physiotherapist-delivered exercise program alone. Approximately 6-9 physiotherapists in Melbourne, Australia will be recruited and trained in weight management for OA patients, as well as trained in how to deliver the specific study interventions. The same therapists will deliver the intervention in both arms of the trial. 88 participants with knee OA will be recruited from the community and randomized into one of the two arms a) diet plus exercise intervention or b) exercise intervention alone. Participants in both groups will be asked to attend 6 consultations with the physiotherapist over 6 months. Questionnaire and laboratory-based outcome measures will be completed by participants at baseline and at the end of the 6 month intervention period. A biostatistician will analyse blinded, de-identified data.
Trial website
https://clinicaltrials.gov/study/NCT04733053
Trial related presentations / publications
Public notes
This record is viewable in the ANZCTR as it had previously listed Australia and/or New Zealand as a recruitment site, however these sites have since been removed

Contacts
Principal investigator
Name 0 0
Kim Bennell, PhD
Address 0 0
University of Melbourne
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries



Summary Results

For IPD and results data, please see https://clinicaltrials.gov/study/NCT04733053