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CompletedNCT04241978Updated Dec 6, 2023

Development and Evaluation of a Web Based Decision Aid for Patients With Hip Osteoarthritis

An interventional study of Patient Decision Aid (PtDA) and Brochure with general information about osteoarthritis in Hip Osteoarthritis and Osteoarthritis, sponsored by Servicio Canario de Salud. Completed at 1 site in Spain. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2023-12-06.

Sponsored by Servicio Canario de Salud · Not applicable, Interventional, and Health services research

Phase
Not applicable
Study type
Interventional
Enrollment
130
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The main goal of this study is assess the effectiveness of a PtDA for patients with hip osteoarthritis

Read the detailed description

Background: Osteoarthritis (OA) is a health condition sensitive to patient's preferences and values regarding the benefits and risks of the different treatment options. In this sense, patient decision aids (PtDA) can play an important role in helping patients to incorporate their values, needs and preferences into the decision-making process, thus improving Person-Centred Care (PCC). Previous research has focused almost exclusively on knee OA, and therefore the aim of this study is to develop and evaluate the effectiveness of a PtDA for patients with hip OA.

Methods: The general design consists of two phases: 1) design a web-based PtDA for patients with hip OA, following the recommended procedures: systematic review of safety/effectiveness of treatments, and an iterative process of development with the help of an Advisory Committee composed of health professionals and patients; 2) To evaluate the impact of the PtDA on hip OA patients' decision-making process related with their treatment. For that aim, a multicenter randomized controlled trial will be carried out with 124 patients with hip OA in Tenerife (Spain) comparing intervention or usual care.

Discussion: PtDAs have been recommended as a useful and effective resource for improving PCC in many health conditions. The intervention is intended to empower patients by fostering their active participation during the decision-making process about their treatment, and by ensuring they make informed decisions congruent with their values and preferences. This study will contribute to the scientific knowledge about effectiveness of PtDAs in hip OA, in order to improve the quality of health care offered to these patients.

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Conditions studied

  • Hip Osteoarthritis
  • Osteoarthritis

Keywords

  • Hip osteoarthritis
  • Patient decision aids
  • Person-centred care
  • Randomized controlled trial
  • Shared decision-making
  • Web-based intervention
03

In context

Osteoarthritis, Hip

642 studies on the registry are indexed under Osteoarthritis, Hip; 122 are open to participants now.

This study's enrollment of 130 is above the median of 90 across 458 interventional studies indexed under Osteoarthritis, Hip.

Browse Osteoarthritis, Hip studies →

Lead sponsor

Servicio Canario de Salud is the lead sponsor of 13 studies on the registry; 3 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients with diagnosis of hip Osteoarthritis

Exclusion criteria

Exclusion Criteria:

  • Patients younger than 18 years
  • Previous hip arthroplasty
  • Patients with terminal illnesses
  • Non-fluent Spanish language
  • Mental or sensory alterations that impede or hinder the response to the measurement instruments or do not have the capacity to make decisions.
05

Study design

Phase
Not applicable
Primary purpose
Health services research
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
130 participants (actual)

Study arms

  • Experimental
    Intervention group

    The participants will complete the baseline assessment and will be asked to read the project information sheet. Then, patients allocated to the intervention group will review the PtDA accompanied by the researcher and will complete the questionnaires assessing the outcome measures, in the same web interface.

    Other: Patient Decision Aid (PtDA)

  • Active comparator
    Control group

    Patients in the control group will follow the same procedure, but they will be given a brochure with general information about osteoarthritis of the hip, knee, ankle and foot instead of the PtDA

    Other: Brochure with general information about osteoarthritis

Interventions

  • OtherPatient Decision Aid (PtDA)

    Patient Decision Aid (PtDA) are tools that enables to promote and facilitate patients' involvement in medical decisions concerning their health

    Also known as: Intervention

  • OtherBrochure with general information about osteoarthritis

    Participants of the control group will be given a brochure with general information about osteoarthritis of the hip, knee, ankle and foot instead of the PtDA

    Also known as: Control

06

What researchers measure

Primary outcomes

  1. Decisional conflict regarding the treatment for Hip Osteoarthritis, measured by the Decisional Conflict Scale (DCS)

    DCS is a 16-item self-reported scale widely used in PtDA research. It is composed of five subscales: uninformed, values, support, uncertainty and effectiveness. This is a 0-100 point scale, where a high score means more decisional conflict.

    Time frame: Immediately after the intervention

Secondary outcomes

  1. Knowledge of the disease and treatments

    A 7-item scale will be udes to assess patients' knowledge of the disease and treatments

    Time frame: Before and immediately after the intervention

  2. Values about characteristics of treatments

    Patients will be asked to rate in a 0-10 scale the importance they attribute to different characteristics of treatment: mode of administration, improvement in pain and function, risk of mild and serious adverse effects, time until symptoms' improvement, duration of benefits, and in the case of arthroplasty, period of rehabilitation and risk of needing surgery revision.

    Time frame: Immediately after the intervention

  3. Treatment preference

    Patients will be asked the treatment they prefer: physiotherapy, medication, intra-articular injections, arthroplasty, not sure

    Time frame: Immediately after the intervention

  4. Intention to undergo the preferred treatment

    Assessed with one item ranging 0 (not sure) to 5 (completely sure)

    Time frame: Immediately after the intervention

  5. Concordance between values and intention to undergo arthroplasty vs. conservative treatments

    Binary variable (yes/no) derived from the association between values and intention to undergo arthroplasty (see statistical analysis).

    Time frame: Immediately after the intervention

  6. Decision quality about arthroplasty

    Binary variable (yes/no) defined as a combination of adequate knowledge (≥60% of correct responses) and concordance.

    Time frame: Immediately after the intervention

  7. Satisfaction with the decision making process scale

    The Satisfaction with Decision Scale (SWD) is a validated 12-item scale measuring participants' satisfaction with healthcare decision making. The SWD uses a 5-point Likert scale where 0 is "Strongly Disagree" and 4 is "Strongly Agree." This is a 0-100 point scale, where a high score means more satisfaction with the decision making process.

    Time frame: Immediately after the intervention

07

Study locations

1 site
  • Evaluation Unit. Canary Islands Health Service
    Santa Cruz de Tenerife, Santa Cruz Tenerife 38109, Spain
08

References and documents

Publications

  • Perestelo-Perez L, Alvarez-Perez Y, Rivero-Santana A, Ramos-Garcia V, Duarte-Diaz A, Torres-Castano A, Toledo-Chavarri A, Herrera-Perez M, Pais-Brito JL, Del Castillo JC, Vazquez JR, Orrego C, Serrano-Aguilar P. The effectiveness of a web-based decision aid for patients with hip osteoarthritis: study protocol for a randomized controlled trial. Trials. 2020 Aug 24;21(1):736. doi: 10.1186/s13063-020-04661-z. PubMed 32838800 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 6, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04241978
Lead sponsor
Servicio Canario de Salud
Collaborators
Fundación Canaria Instituto de Investigación Sanitaria de Canarias, Hospital Universitario de Canarias, Hospital San Juan de Dios Tenerife, Avedis Donabedian Research Institute, Gerencia de Atención Primaria del Área de Salud de Tenerife
Responsible party
Lilisbeth Perestelo-Perez (Health Services Researcher, Servicio Canario de Salud) — Principal investigator
First posted
Jan 27, 2020
Start date
Feb 17, 2020
Primary completion
Feb 28, 2023
Completion
Apr 3, 2023
Last update
Dec 6, 2023

Study contacts

Lilisbeth Perestelo Perez, PhD
principal investigator · Servicio de Evaluación de. Servicio Canario de Salud

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Dec 2023. You cannot join it, but the record below documents what was studied.

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