NCT06643845

Brief Summary

Knee is the most common site of osteoarthritis. Treatment of knee osteoarthritis starts with a full course of medical therapy, followed by surgery to replace the knee with a prosthesis if this strategy fails, or in advanced cases. However, the new recommendations of the French rheumatology society, which evaluate the various treatments and position them in the treatment plan, are not well known, and the definition of a complete treatment remains unclear. The vast majority of patients are therefore referred to a surgeon after having tried a small part of the therapeutic arsenal (generally analgesics and corticosteroid or hyaluronic acid infiltrations). The goal of this study is to to select patients most likely to gain from surgery and to develop strategies that avoid the need for major surgery.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
1,000

participants targeted

Target at P75+ for not_applicable

Timeline
58mo left

Started Oct 2025

Longer than P75 for not_applicable

Geographic Reach
1 country

21 active sites

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 Progress12%
Oct 2025Apr 2031

First Submitted

Initial submission to the registry

August 19, 2024

Completed
2 months until next milestone

First Posted

Study publicly available on registry

October 16, 2024

Completed
1 year until next milestone

Study Start

First participant enrolled

October 17, 2025

Completed
5.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2031

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2031

Last Updated

May 22, 2026

Status Verified

May 1, 2026

Enrollment Period

5.5 years

First QC Date

August 19, 2024

Last Update Submit

May 19, 2026

Conditions

Keywords

SurgeryArthroplastyTotal knee replacement

Outcome Measures

Primary Outcomes (1)

  • Multimodal medical care osteoarthritis is non inferior (with a threshold of 15% for pain and function) to total knee arthroplasty in symptomatic radiographic knee osteoarthritis.

    The outcome relates to two scales which constitute the composite principal endpoint; * Visual Analogic Score pain, VAS (scale 0-100) * Western Ontario and McMaster Universities function, WOMAC (scale 0-100) Success is defined by a VAS AND WOMAC scale ≤40/100 at 2 years Failure is defined by a VAS pain OR WOMAC scale \> 40/100 at 2 years.

    2 years

Secondary Outcomes (6)

  • Study the proportion of delayed surgery in the medical group

    2 years

  • Study the proportion of patients with severe events induced by surgery

    2 years

  • Analyze the impact of physical activity on change of body mass by arm in the randomized population.

    2 years

  • To compare analgesic use by arm.

    2 years

  • To compare the 0-2 years cost using the National Health Data System between the 2 groups.

    0-2 years

  • +1 more secondary outcomes

Study Arms (2)

Multimodal medical care arm

EXPERIMENTAL

In the medical care arm, rheumatologists will list previous treatment, ongoing treatment and then order validated treatment (corticosteroid or hyaluronic acid joint injection if necessary, physical activity and weight loss in the event of obesity, other non-drug treatments (insole, orthosis) as well as other drug treatments (pain killers or non steroidal anti-inflammatory drugs) including validated tools (personalized program, filmed sessions and digital exercise media for regular practice at home, motivational e-mails). At least one modification will be discussed in each domain (physical activity, weight loss, insole, orthosis, assistive device when walking, joint injection, pills -pain killer acetaminophen and opioids- nonsteroidal anti inflammatory drugs -with classical rules - and others)

Other: Medical and non-medical treatments

Surgery arm

ACTIVE COMPARATOR

In the surgery arm, patients will have to plan, as initially suggested, their surgery (total knee arthroplasty)

Procedure: arthroplasty

Interventions

arthroplastyPROCEDURE

In the surgery arm, patients will have their surgery (arthroplasty), as originally planned.

Surgery arm

In the medical care arm, patients will follow multimodal medical strategies to prevent surgery in a population of patients with knee osteoarthritis having a first indication of knee prosthesis

Multimodal medical care arm

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 18-90 years old
  • Femoro-tibial osteoarthritis Kellgren stage stage≥ 2 without laxity in extension;
  • A proposal of total knee replacement by a surgeon;
  • No corticosteroid joint injection within 3 months;
  • Wish to discuss medical care;
  • Able to consent and having signed a consent form.

You may not qualify if:

  • Contraindication or no indication to surgery or medical care (severe infection for example)
  • Inflammatory arthritis
  • Lack of social insurance
  • Symptomatic (VAS pain \>40) contralateral knee or hip osteoarthritis (with or without replacement)
  • Pregnant or breastfeeding woman
  • Patient under court protection, guardianship, curatorship
  • Patient deprived of liberty

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (21)

CHU Amiens

Amiens, France

NOT YET RECRUITING

CHU Brest

Brest, France

RECRUITING

CHU Caen

Caen, France

NOT YET RECRUITING

CHD Vendée

La Roche-sur-Yon, France

NOT YET RECRUITING

CHU Le Mans

Le Mans, France

NOT YET RECRUITING

CHU Limoges

Limoges, France

NOT YET RECRUITING

GHICL- Hôpital Saint Philibert

Lomme, France

NOT YET RECRUITING

HCL

Lyon, France

NOT YET RECRUITING

CHU Montpellier

Montpellier, France

NOT YET RECRUITING

CH Morlaix

Morlaix, France

NOT YET RECRUITING

CHU Nantes

Nantes, France

NOT YET RECRUITING

CHU Nice

Nice, France

NOT YET RECRUITING

AP-HP Cochin

Paris, France

NOT YET RECRUITING

AP-HP La pitié

Paris, France

NOT YET RECRUITING

AP-HP Lariboisière

Paris, France

NOT YET RECRUITING

AP-HP Saint-Antoine

Paris, France

NOT YET RECRUITING

CHIC Quimper

Quimper, France

RECRUITING

CHU Reims

Reims, France

NOT YET RECRUITING

CHU Saint Etienne

Saint-Etienne, France

NOT YET RECRUITING

CHU Strasbourg

Strasbourg, France

NOT YET RECRUITING

CHU Tours

Tours, France

NOT YET RECRUITING

MeSH Terms

Conditions

Osteoarthritis, Knee

Interventions

Arthroplasty

Condition Hierarchy (Ancestors)

OsteoarthritisArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Intervention Hierarchy (Ancestors)

Orthopedic ProceduresSurgical Procedures, OperativePlastic Surgery Procedures

Study Officials

  • Alain Saraux, Pr

    CHU Brest

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 19, 2024

First Posted

October 16, 2024

Study Start

October 17, 2025

Primary Completion (Estimated)

April 1, 2031

Study Completion (Estimated)

April 1, 2031

Last Updated

May 22, 2026

Record last verified: 2026-05

Data Sharing

IPD Sharing
Will share

All collected data that underlie results in a publication

Shared Documents
STUDY PROTOCOL
Time Frame
Data will be available beginning five years and ending fifteen years following the final study report completion
Access Criteria
Data access request will be reviewed by the internal committee of Brest UH. Requestors will be required to sign and complete a data access agreement.

Locations