Effect of an information- and self-management app for people with knee osteoarthritis

Effect of an information- and self-management app for people with knee osteoarthritis (OA-AID)

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN14016973

Enrollment

204

Registered

2025-12-03

Start date

2025-10-24

Completion date

Unknown

Last updated

2026-01-05

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Knee osteoarthritis Musculoskeletal Diseases

Interventions

A randomization list has been generated through SealedEnvelope (https://www.sealedenvelope.com/simple-randomiser/v1/lists). Participants will be randomized to either the intervention group or the cont

Eligibility

Sex/Gender

All

Age

50 Years to 100 Years

Inclusion criteria

Inclusion criteria: Men and women > 50 years referred to specialist healthcare for knee OA management

Exclusion criteria

Exclusion criteria: 1. Received joint replacement or are under consideration for revision in the referred joint 2. Have undergone joint replacement surgery in the opposite knee 3. Have uncontrolled serious comorbidities 4. Have cognitive deficits 5. Are seeking care for recent knee trauma conditions (less than 6 months after trauma) or mainly psoriatic/rheumatoid arthritis 6. Unable to understand Norwegian 7. Do not possess a smartphone

Design outcomes

Primary

Measure	Time frame
1.Osteoarthritis and treatment options measured using the Knee OsteoArthritis Knowledge Scale (KOAKS), at baseline, 8 weeks and post consultation 2.The patient's uncertainty with treatment options will be measured using the Decisional Conflict Scale (DCS), post consultation	—

Secondary

Measure	Time frame
Secondary outcome measures are assessed post consultation: 1. Concordance between preferences and treatment decision, measured with one question from the Decision Conflict Scale (DSC) 2. Decisional quality, measured with section 3 (decision process scale) in the Decision Quality Index for Knee Osteoarthritis (K-DQI) 3. Level of shared decision-making, measured with the CollaboRATE questionnaire 4. Satisfaction with treatment choice, measured on a numeric rating scale (0–10, with a higher score indicating more satisfaction) Other outcome measures: 5. Motivation for exercise, measured on a numeric rating scale from 0 to 10 with higher score indicating higher motivation, at baseline, 4 weeks (only intervention group), and 8 weeks 6. Motivation for surgery, measured on a numeric rating scale from 0 to 10 with higher score indicating higher motivation, at baseline, 4 weeks (only intervention group), and 8 weeks 7. Assessment of knee-related pain, measured with the Knee Injury and Osteoarthritis Outcome Score (pain section), at baseline, 4 weeks (only intervention group), 8 weeks, 1 and 2 years 8. Assessment of knee-related function, measured with the Knee Injury and Osteoarthritis Outcome Score (function section), at baseline, 4 weeks (only intervention group), 8 weeks, 1 and 2 years 9. Assessment of knee-related quality of life, measured with the Knee Injury and Osteoarthritis Outcome Score (quality of life section), at baseline, 4 weeks (only intervention group), 8 weeks, 1 and 2 years 10. Health-related quality of life, measured with EQ-5D-5L, and a Visual Analog Scale (VAS) from 0 to 100, with 100 indicating best health, at baseline, 1 and 2 years 11. Level of shared decision-making therapist, measured with 7 statements from the MAPPIN'SDM Therapist, post consultation 12. Preferred decision-making role, measured with the Control Preference Scale, post consultation 13. Illness perception, measured with the Brief Illness Perception Questionnaire (B-I	—

Measure

Time frame

Secondary outcome measures are assessed post consultation: 1. Concordance between preferences and treatment decision, measured with one question from the Decision Conflict Scale (DSC) 2. Decisional quality, measured with section 3 (decision process scale) in the Decision Quality Index for Knee Osteoarthritis (K-DQI) 3. Level of shared decision-making, measured with the CollaboRATE questionnaire 4. Satisfaction with treatment choice, measured on a numeric rating scale (0–10, with a higher score indicating more satisfaction) Other outcome measures: 5. Motivation for exercise, measured on a numeric rating scale from 0 to 10 with higher score indicating higher motivation, at baseline, 4 weeks (only intervention group), and 8 weeks 6. Motivation for surgery, measured on a numeric rating scale from 0 to 10 with higher score indicating higher motivation, at baseline, 4 weeks (only intervention group), and 8 weeks 7. Assessment of knee-related pain, measured with the Knee Injury and Osteoarthritis Outcome Score (pain section), at baseline, 4 weeks (only intervention group), 8 weeks, 1 and 2 years 8. Assessment of knee-related function, measured with the Knee Injury and Osteoarthritis Outcome Score (function section), at baseline, 4 weeks (only intervention group), 8 weeks, 1 and 2 years 9. Assessment of knee-related quality of life, measured with the Knee Injury and Osteoarthritis Outcome Score (quality of life section), at baseline, 4 weeks (only intervention group), 8 weeks, 1 and 2 years 10. Health-related quality of life, measured with EQ-5D-5L, and a Visual Analog Scale (VAS) from 0 to 100, with 100 indicating best health, at baseline, 1 and 2 years 11. Level of shared decision-making therapist, measured with 7 statements from the MAPPIN'SDM Therapist, post consultation 12. Preferred decision-making role, measured with the Control Preference Scale, post consultation 13. Illness perception, measured with the Brief Illness Perception Questionnaire (B-I

—

Countries

Norway

Contacts

Public ContactAnne Therese Tveter

a.t.tveter@medisin.uio.no+4791115550

Outcome results

None listed

Source: ISRCTN (via WHO ICTRP) · Data processed: Feb 4, 2026