NCT07003932

Brief Summary

The goal of this clinical trial is to evaluate the effect, cost-effectiveness, safety and satisfaction with replacing standardized, pre-scheduled face-to-face visits with remote monitoring and video consultations or face-to-face consultations only when needed after total knee replacement surgery due to knee osteoarthritis. The primary outcome is the probability of being a OMERACT-OARSI responder at 6 months post-surgery. This is a composite index where participants are classified as a responder or non-responder based on improvement in pain, function and/or disease activity. Health-related quality of life and healthcare costs will be used to determine cost-effectiveness. Patient-reported adverse events and statisfaction will be used to determine safety and satisfaction. Patients will be recruited from Diakonhjemmet Hospital. Patients undergoing total knee replacement surgery will be randomly allocated to a control group who are summoned for a face-to-face consultation at Diakonhjemmet Hospital at 2 and 12 months, or a remote monitoring group who will not be scheduled for hospital visits but will answer patient-reported outcomes throught a web-application at 1, 2, 3, 6 and 12 months post-surgery and only be scheduled for hospital visits when needed. An additional study with follow-up after 5 and 10 years will be conducted.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
140

participants targeted

Target at P50-P75 for not_applicable

Timeline
118mo left

Started Jun 2025

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress9%
Jun 2025Dec 2035

First Submitted

Initial submission to the registry

May 27, 2025

Completed
8 days until next milestone

First Posted

Study publicly available on registry

June 4, 2025

Completed
Same day until next milestone

Study Start

First participant enrolled

June 4, 2025

Completed
1.9 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 15, 2027

Expected
8.6 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2035

Last Updated

August 13, 2025

Status Verified

August 1, 2025

Enrollment Period

1.9 years

First QC Date

May 27, 2025

Last Update Submit

August 8, 2025

Conditions

Keywords

knee arthroplastyremote follow-upnon-inferiority

Outcome Measures

Primary Outcomes (1)

  • OMERACT-OARSI responder criteria

    The OMERACT-OARSI responder criteria is a composite index where participants are classifies as responders or non-responders (binary outcome) based on the following criteria: High improvement on pain or function * ≥50% improvement + absolute change of ≥2 points in pain, OR * ≥50% improvement + absolute change of ≥2 point on KOOS) OR Improvement in at least two of the three following * ≥20% improvement + absolute change of ≥1 point in pain * ≥20% improvement + absolute change of ≥1 point in function * ≥20% improvement + absolute change of ≥1 point in disease activity

    Baseline, 6 months

Secondary Outcomes (11)

  • OMERACT-OARSI responder criteria

    Baseline, 12 months

  • Healthcare costs

    Baseline, 6 and 12 months

  • Health-related quality of life (EQ5D-5L)

    Baseline, 6 months, 12 months

  • Safety measures

    1 month, 2 months, 3 months, 6 months, 12 months

  • Change in Knee Injury and Osteoarthritis Outcome Score (KOOS)

    Baseline, 6 months, 12 months

  • +6 more secondary outcomes

Other Outcomes (21)

  • Fatigue

    Baseline, 2 months, 6 months, 12 months

  • Change in problems related to daily activity

    Baseline, 2 months, 6 months, 12 months

  • Pain self-efficacy Questionnaire (PSEQ-2)

    Baseline, 2 months, 6 months, 12 months

  • +18 more other outcomes

Study Arms (2)

Control group

ACTIVE COMPARATOR

Patients randomly allocated to standard follow-up will be summoned for a hospital visit with a physiotherapist at 8 weeks and 12 months post-surgery. The physiotherapist will conduct an assessment in line with regular clinical practice. If the patient is experiencing lack of improvement or adverse events, an orthopedic surgeon may be consulted. The patients will also answer patient-reported outcomes at 8 weeks and 6- and 12 months post-surgery, however, these answers will not be monitored.

Other: Usual Care

Remote monitoring

EXPERIMENTAL

Patients randomly allocated to the remote monitoring group will answer patient-reported outcome at 1, 2, 3, 6 and 12 months. They will be provided with a brief introduction from the study personnel on how to answer questions remotely through the Youwell platform. Patients will get an SMS notification on their mobile phone with a link to the questionnaire. They will have to log in with BankID to access the questionnaire. A physiotherapist will monitor the answers and will contact the patient if an unexpected deterioration or adverse events are detected.

Other: Remote monitoring

Interventions

The remote monitoring group will be more closely followed than the control group in order to detect any deterioration over time. This group will not be scheduled for a face-to-face consultation unless it is deemed necessary by a physiotherapist or if the patient contacts the hospital themselves.

Remote monitoring

The control group will follow usual care with face-to-face consultation with a physiotherapist at 2 and 12 months. They will also anwer questionnaires at 2, 6 and 12 months, but these will not be monitored.

Control group

Eligibility Criteria

Age50 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Men and women, 50 years of age or older
  • Reffered to total knee replacement surgery due to knee osteoarthritis

You may not qualify if:

  • Revision of previous total knee replacement surgery
  • Serious comorbidities (such as severe malignancies, severe diabetes mellitus, severe infections, uncontrollable hypertension, severe cardiovascular disease, severe respiratory disease)
  • Congitive dysfunction
  • Total knee replacement surgery due to trauma or inflammatory joint disease (such as psoriatic arthritis or rheumatoid arthritis)
  • Unable to understand Norwegian
  • Low digital competency/ cannot answer questionnaires digitally (lack BankID, do not possess a smartphone)
  • Deemed inappropriate for remote monitoring by orthopedic surgeon

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Diakonhjemmet Hospital

Oslo, Please Select, 0370, Norway

RECRUITING

MeSH Terms

Interventions

Remote Patient Monitoring

Intervention Hierarchy (Ancestors)

TelemedicineDelivery of Health CarePatient Care ManagementHealth Services Administration

Central Study Contacts

Anne Therese Tveter, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Masking Details
The statistician conducting the primary analysis will be blinded to group allocation
Purpose
HEALTH SERVICES RESEARCH
Intervention Model
PARALLEL
Model Details: Randomized, open-labeled, parallel group, non-inferiority, single-site clinical trial
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

May 27, 2025

First Posted

June 4, 2025

Study Start

June 4, 2025

Primary Completion (Estimated)

May 15, 2027

Study Completion (Estimated)

December 31, 2035

Last Updated

August 13, 2025

Record last verified: 2025-08

Data Sharing

IPD Sharing
Will not share

Due to GDPR regulations, IPD cannot be shared

Locations