NCT06652893

Brief Summary

The prevalence of knee osteoarthritis (OA) is rising worldwide, leading to disability and a reduced quality of life, particularly in elderly patients. While there are several treatment options, there is little consensus in the scientific community over which methods are most effective. Viscosupplementation with hyaluronic acid (HA) has been found to reduce pain in patients with knee OA over a period of up to 6 months, with little to no side effects. The aim of this prospective open-label, uncontrolled, observational, single-site study was to assess the efficacy and safety of a single hybrid HA injection over a period of 6 months in subpopulations of patients with low to severe symptomatic knee OA in everyday clinical practice. Fifty patients who met the inclusion criteria participated in the study. A single intra-articular ultrasound-guided injection of hybrid HA (Sinovial®) was administered. Patients submitted Visual Analog Scale (VAS) and Western Ontario and McMaster Universities Arthritis Index (WOMAC) questionnaires at 28-, 42-, 84-, and 168-days post-treatment.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
50

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Oct 2021

Geographic Reach
1 country

1 active site

Status
completed

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 Start

First participant enrolled

October 1, 2021

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 10, 2022

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 11, 2022

Completed
1.9 years until next milestone

First Submitted

Initial submission to the registry

October 17, 2024

Completed
5 days until next milestone

First Posted

Study publicly available on registry

October 22, 2024

Completed
Last Updated

October 23, 2024

Status Verified

October 1, 2024

Enrollment Period

11 months

First QC Date

October 17, 2024

Last Update Submit

October 21, 2024

Conditions

Keywords

knee osteoarthritishialuronic acidknee function

Outcome Measures

Primary Outcomes (2)

  • Visual Analog Scale

    Visual Analog Scale for the assessment of the pain during the study. Scale 0 ( no pain ) to 10 ( extreme pain )

    6 month

  • The Western Ontario and McMaster Universities Arthritis Index

    The Western Ontario and McMaster Universities Arthritis Index ( WOMAC ) is used to assess the function of the knee in osteoarthritis. Scale 0 ( the worst result ) -100 ( the best result )

    6 months

Study Arms (1)

Fifty consecutive patients who met the inclusion criteria participated in the study

Consecutive patients with knee osteoarthritis and with a medical indication for viscosupplementation with hybrid hialuronic acid (HA) who fulfilled the inclusion criteria were recruited for the study. The inclusion criteria were: a medical indication for viscosupplementation therapy with hybrid HA; patients aged between 45 and 80 years; diagnosis of femorotibial gonarthrosis associated with femoro-patellar arthrosis or isolated, gonarthrosis symptoms for at least 6 months; patients who failed to respond to analgesics and/or regular NSAIDs, or were proved to be intolerant to the regular use of analgesics, NSAIDS, or weak opioids; grade 2 to 3 OA in the Kellgren-Lawrence grading scale ; pain when walking measured by the Visual Analog Scale of at least 40 mm on the targeted knee; and contralateral knee pain when walking with aVAS of less than 10 mm. The exclusion criteria were: inability to understand the aim of the study, inability to provide acceptable consent, pregnancy, serious ps

Drug: Sinovial

Interventions

A single intra-articular injection of hybrid HA complex, Sinovial® HL (IBSA Pharmaceuticals, Italy, patent number WO/2012/032151 ) in the knee was performed from the lateral approach to the suprapatellar recess using ultrasound. For the ultrasound-guided infiltration method, a sterile linear probe with a 20 G guide was used to visualize the joint suprapatellar recess and avoid intrasynovial infiltration. The patient was positioned supine with the knee in full extension. From the lateral approach to the suprapatellar recess, HA was then injected into the knee joint, verifying intra-articular positioning in real-time via ultrasound imaging (direct visualization of viscous fluid or air bubbles). Patients did not receive anti-inflammatory or pain-relieving drugs in the week before the first injection . Patients were evaluated at four time points: at baseline and after 28, 42, 84, and 168 days after the intervention. At each evaluation, clinical data relating to the status of the disea

Fifty consecutive patients who met the inclusion criteria participated in the study

Eligibility Criteria

Age45 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Patients with symptomatic OA of the knee KL II-III with unsucsessful conservative treatment with NSAIDS for 6 weeks. Age 45 -80 without axial deformation of the lower leg more than 10 deg.

You may qualify if:

  • \. medical indication for viscosupplementation therapy with hybrid HA 2 patients aged between 45 and 80 years 3.diagnosis of gonarthrosis 4. gonarthrosis symptoms for at least 6 months 5. patients who failed to respond to analgesics and/or regular NSAIDs, 6. grade 2 to 3 OA in the Kellgren-Lawrence grading scale 7. pain on walking measured by the Visual Analog Scale (VAS; 0-100 mm) of at least 40 mm on the targeted knee; 8. contralateral knee pain when walking with aVAS of less than 10 mm.

You may not qualify if:

  • inability to understand the aim of the study
  • inability to provide acceptable consent
  • pregnancy
  • serious psychiatric disorders
  • allergy or intolerance to hybrid HA
  • secondary gonarthrosis due to systematic and inflammatory disorders.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Sporto Clinic

Lodz, 90 - 038, Poland

Location

Related Publications (1)

  • Domzalski ME, Marchewa K. The Efficacy and Safety of Single Injections of Hybrid HA in the Treatment of Symptomatic Knee Osteoarthritis: A Case Series. Rheumatol Ther. 2025 Aug;12(4):695-708. doi: 10.1007/s40744-025-00780-8. Epub 2025 Jul 2.

MeSH Terms

Conditions

Osteoarthritis, Knee

Condition Hierarchy (Ancestors)

OsteoarthritisArthritisJoint DiseasesMusculoskeletal DiseasesRheumatic Diseases

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
6 Months
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Principal Investigator

Study Record Dates

First Submitted

October 17, 2024

First Posted

October 22, 2024

Study Start

October 1, 2021

Primary Completion

September 10, 2022

Study Completion

November 11, 2022

Last Updated

October 23, 2024

Record last verified: 2024-10

Locations