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Hip OsteoarthritisHIPPERNCT02969512

Feasibility of the Hip Instructional Prehabilitation Program for Enhanced Recovery (HIPPER)

A study testing HIPPER and OASIS Online Educational Webinars in people with Hip Osteoarthritis, run by University of British Columbia at 1 site in Canada.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Osteoarthritis (OA), leading to hip replacement, is a leading contributor to global mobility impairment. Given the boom in the older demographic it is not surprising that there is an 11% increased demand for replacement every 5 years in Canada. Read more about this study

Who is it for?
Ages 50 years and older
Conditions the study is for
Hip Osteoarthritis
What is being tested?
HIPPER and OASIS Online Educational Webinars
Could I receive a placebo?
No, everyone receives an active treatment
How many people
51 participants
Where
1 siteCanada
Study dates
10 Jan 2021to 25 Apr 2023
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 50 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Community-dwelling participants with advanced hip OA will be included if they:
  • are living in the greater Vancouver region;
  • are aged 50 years or older;
  • are scheduled to have a single THR in 12 weeks or later;
  • have access to the internet

Who cannot join

  • cannot communicate and complete questionnaires in English;
  • anticipate a health condition or procedure that contraindicates their THR surgery;
  • are actively receiving physical therapy for their hip symptoms;
  • have had a previous THR.

Trial locations and contacts

1 site in 1 country.

Canada1 site

  • GF Strong Rehabilitation Centre

    Vancouver, British Columbia, V5Z 2G9

Other trials in Canada

About this study

Official title: Feasibility of the Hip Instructional Prehabilitation Program for Enhanced Recovery (HIPPER) Intervention Protocol: An eHealth Approach for Pre-surgical Hip Replacement Education

Osteoarthritis (OA), leading to hip replacement, is a leading contributor to global mobility impairment. Given the boom in the older demographic it is not surprising that there is an 11% increased demand for replacement every 5 years in Canada. Health promotion interventions, such as prehabilitation, defined as pre-surgical education, are vital to optimizing surgical outcomes, reducing hospitalization costs, accelerating rehabilitation, and reducing patient discomfort and pre-operative anxiety. HIPPER is a 2-year randomized controlled trial (RCT) that will assess feasibility indicators and clinical outcomes of online prehab education modules compared to online educational webinars. The feasibility indicators (process, resource, management, and treatment issues) and clinical outcomes (physical function, anxiety, depression, pain, daily activities, self-efficacy, and health related quality of life) will be assessed among Vancouver-dwelling older adults aged > 50 years, with advanced hip osteoarthritis. The findings will lead to the refinement of the design protocol in order to evaluate a contemporary, standardized, and geographically accessible prehab education program in a large multi-site RCT.

Read the detailed description

This feasibility study will use a single-site, parallel group evaluator blind RCT. Subjects (N=40) will be randomly assigned to the experimental (HIPPER n=20) or control (n=20) groups.The experimental group will receive the interactive online HIPPER intervention consisting of 12 modules (~20 mins/module). The control group is usual practice consisting of a 2 hr online large group educational webinar. Feasibility indicators (i.e. recruitment and retention; subject burden; safety; intervention administration/adherence; perceived benefit) will be evaluated as binary outcomes against pre-set parameters reflecting viability for a multi-site large-scale RCT. The primary clinical outcome of interest when assessing effect size for the eventual RCT is the Hospital Anxiety and Depression Scale-Anxiety. Secondary clinical outcomes include measures of pain, function, daily activities, self-efficacy, equipment checklist, system usability scale, environmental setup, physical activity, and health related quality of life.

Upon successful screening/enrollment and baseline data collection (T1) the Study Coordinator will contact the statistician by telephone or email and obtain group assignment within 48 hours. Subjects will be randomized using a 1:1 allocation ratio between groups. A central computerized randomization process will be designed by the statistician, with an undisclosed block size. To address bias, subjects will be instructed not to discuss their program and Testers will reinforce this point at each session. T1 data will be collected at our clinic while the follow up data collected 7-10 days prior to surgery (T2), and 30 days post-surgery (T3).

The findings from the study will be summarized and mailed to each participant upon study completion. HIPPER and control group assessments will be held at GF Strong Rehabilitation Centre and at subject's homes.

The outcome will lead to the refinement of the design protocol in order to robustly evaluate a contemporary, standardized, and geographically accessible prehabilitation education program. Ultimately, HIPPER may be found to have significant individual and social (health system level) benefits.

Being tested
HIPPER, OASIS Online Educational Webinars
Keywords
Patient education, Advanced hip osteoarthritis, Online education, Computer-assisted instruction, e-learning, Older adult
Medical subject headings
Osteoarthritis, Hip

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • HIPPEROther

    Also called Behavioral: Online prehab education

    Participants can complete the online educational modules at home or another location with internet access. The total time to complete all of the modules is about 2 hours and 30 minutes.

  • OASIS Online Educational WebinarsOther

    Also called Behavioral: large group education sessions

    2-hour online educational large group sessions

Study groups in NCT02969512
Study groupRoleWhat they receive
HIPPERExperimentalThe HIPPER group will receive 12 interactive online modules (~20 minutes each). HIPPER participants will receive email or phone contact (participant preference) to provide them with website portal access consisting of the web address, and simple instructions to access the website using personalized encrypted login information to the site.
Receives: Other: HIPPER
OASIS Online Educational WebinarsActive comparatorTo provide a comparable level of education, participants in the Online Education group will receive 2 hours of OASIS online educational webinars as per current practice.
Receives: Other: OASIS Online Educational Webinars

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Hospital Anxiety and Depression Scale - Anxiety Subscale (HADS-A)

    The Hospital Anxiety and Depression Scale (HADS-A) measures anxiety symptoms. The anxiety subscale (HADS-A) has 7 items, each rated 0-3 and summed to a total of 0-21. Higher scores indicate worse outcomes (greater anxiety).

    Measured: T1 (Baseline); T2 (7-10 days before surgery); T3 (Post-Intervention, 30 days after surgery)

Secondary outcomes (9)

  1. Hospital Anxiety and Depression Scale - Depression Subscale (HADS-D)

    The Hospital Anxiety and Depression Scale (HADS-D) measures depression symptoms. The depression subscale (HADS-D) has 7 items, each rated 0-3 and summed to a total of 0-21. Higher scores indicate higher levels of depression.

    Measured: T1 (Baseline); T2 (7-10 days before surgery); T3 (Post-Intervention, 30 days after surgery)

  2. Oxford Hip Score (OHS)

    The Oxford Hip Score (OHS) measures pain and function in patients with hip osteoarthritis. It has 12 items, each rated 0-4, summed to a total of 0-48. Higher scores indicate lower levels of disability.

    Measured: T1 (Baseline); T2 (7-10 days before surgery); T3 (Post-Intervention, 30 days after surgery)

  3. Change in Self-Efficacy for Rehabilitation Outcome Scale (SER)

    The Self-Efficacy for Rehabilitation Outcome Scale (SER) measures confidence in performing rehabilitation activities. It has 12 items, each rated 0-10, summed to a total of 0-120. Higher scores indicate greater self-efficacy.

    Measured: T1 (Baseline); T2 (7-10 days before surgery); T3 (Post-Intervention, 30 days after surgery)

  4. System Usability Scale (SUS)

    The System Usability Scale (SUS) measures perceived usability of a system. It has 10 items rated on a 5-point scale; item scores are converted, summed, and multiplied by 2.5 to give a total of 0-100. Higher scores indicate better perceived usability.

    Measured: T2 (7-10 days before surgery); T3 (Post-Intervention, 30 days after surgery); Completed only by participants in the HIPPER group.

  5. Hip Disability and Osteoarthritis Outcome Score - Activities of Daily Living Subscale (HOOS-ADL)

    The Hip Disability and Osteoarthritis Outcome Score (HOOS) Activities of Daily Living (ADL) subscale measures difficulty with daily activities in patients with hip osteoarthritis. It has 17 items, each rated on a five-point Likert scale (0 = none to 4 = extreme difficulty), summed to a total ranging from 0 to 68. Higher scores indicate greater difficulty with daily activities.

    Measured: T1 (Baseline); T2 (7-10 days before surgery); T3 (Post-Intervention, 30 days after surgery)

  6. Physical Activity Scale for the Elderly (PASE)

    The Physical Activity Scale for the Elderly (PASE) measures self-reported physical activity over the past 7 days in older adults. Scores are a weighted sum of time spent across activity types, ranging from 0 to 400 or more. Higher scores indicate greater physical activity.

    Measured: T1 (Baseline); T2 (7-10 days before surgery); T3 (Post-Intervention, 30 days after surgery)

  7. EuroQol 5-Dimension 5-Level (EQ-5D-5L) Index Score

    The EuroQol 5-Dimension 5-Level (EQ-5D-5L) measures health-related quality of life across five dimensions: mobility, self-care, usual activities, pain/discomfort, and anxiety/depression. Responses were converted to a single utility index ranging from -0.285 to 1 (extreme problems on all dimensions) to 1 (full health). Higher scores indicate better health-related quality of life.

    Measured: T1 (Baseline); T2 (7-10 days before surgery); T3 (Post-Intervention, 30 days after surgery)

  8. Equipment Checklist

    The Equipment Checklist included recommended equipment and mobility aids for total hip replacement. This checklist was developed in accordance with current guidelines and clinical recommendations. Participants indicated which items they had obtained. The reported value is the number of items obtained per participant. Higher scores indicate more recommended equipment obtained.

    Measured: T1 (Baseline); T2 (7-10 days before surgery); T3 (Post-Intervention, 30 days after surgery)

  9. 30-second Chair-Stand Test

    The 30-Second Chair-Stand Test measures lower-body strength and endurance. Participants stand fully from a seated position and sit back down as many times as possible within 30 seconds. The score is the number of completed sit-to-stand repetitions. Higher scores indicate better lower-body strength and function.

    Measured: T1 (Baseline); T2 (7-10 days before surgery).

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted21 Nov 2016 (estimated)
  2. Study start10 Jan 2021
  3. Primary completion25 Apr 2023
  4. Study completion25 Apr 2023

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Health services research
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
51 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02969512
Sponsor's protocol ID
H16-02553
Acronym
HIPPER
Status last verified
Jun 2026
First submitted
9 Nov 2016
Last updated
17 Aug 2026
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Publications

  • Simpson, E., Mohammadi, S., Miller, W. C., Yu, N., Watson, W., Spillane, A., & Westby, M. D. (2022). Reliability of conducting the 30-second chair stand test virtually among individuals with osteoarthritis. Archives of Rheumatology & Arthritis Research, 2(4), Article ARAR.MS.ID.000542.

  • Dhariwal A, Mohammadi S, Simpson E, Westby MD, Watson W, Miller WC. Patient-centered perspectives: A qualitative evaluation of the Hip Instructional Prehabilitation Program for Enhanced Recovery (HIPPER). PLoS One. 2025 Apr 24;20(4):e0322114. doi: 10.1371/journal.pone.0322114. eCollection 2025.

    PubMed 40273090

  • Miller WC, Mohammadi S, Watson W, Crocker M, Westby M. The Hip Instructional Prehabilitation Program for Enhanced Recovery (HIPPER) as an eHealth Approach to Presurgical Hip Replacement Education: Protocol for a Randomized Controlled Trial. JMIR Res Protoc. 2021 Jul 6;10(7):e29322. doi: 10.2196/29322.

    PubMed 34255722

  • Mohammadi S, Westby MD, Schneeberg A, Watson W, Dhariwal A, Simpson E, Miller WC. The hip instructional prehabilitation program for enhanced recovery (HIPPER) as an eHealth approach to presurgical hip replacement Education: Feasibility randomized controlled trial. Int J Orthop Trauma Nurs. 2025 Aug;58:101210. doi: 10.1016/j.ijotn.2025.101210. Epub 2025 Jun 18.

    PubMed 40580786

Questions about this trial

What is this clinical trial studying?

A study testing HIPPER and OASIS Online Educational Webinars in people with Hip Osteoarthritis, run by University of British Columbia at 1 site in Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 17 Aug 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Canada. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 17 Aug 2026). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Hospital Anxiety and Depression Scale - Anxiety Subscale (HADS-A) (time frame: T1 (Baseline); T2 (7-10 days before surgery); T3 (Post-Intervention, 30 days after surgery)). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02969512, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 17 Aug 2026.

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