Comparison of Two Application Regimens for Viscosupplementation

Osteoarthritis Clinical Trial

Official title:

Best Effect of Viscosupplementation With Hyaluronic Acid and Triamcinolone in Patients With Knee Osteoarthritis. Prospective Randomized Study Between Two Different Applications Regimens

Clinical Trial Details — Status: Completed

Administrative data

• NCT number: NCT01824485
• Other study ID #: CAPPesq 0199/11
• Status: Completed
• Phase: Phase 4
• First received: April 1, 2013
• Last updated: January 5, 2015
• Start date: March 2013
• Est. completion date: April 2014

Study information

• Verified date: September 2013
• Source: University of Sao Paulo General Hospital
• Contact: n/a
• Is FDA regulated: No
• Health authority: Brazil: Ethics Committee
• Study type: Interventional

Clinical Trial Summary

Viscosupplementation by intra-articular injection of hyaluronate products has recently gained popularity as a treatment modality of gonarthritis.There is not, however, a consensus on the best method.Our objective is to evaluate what is the best dosage of viscosupplementation with hyaluronic acid (OSTEONIL®) associated with 1 ml (20 mg) of triamcinolone hexacetonide. One hundred and four patients with knee osteoarthritis (KOA) were divides into 2 groups of 52 patients each to receive either a single application of 3 ampoules of OSTEONIL® + 1ml of Hexacetonide of triamcinolone or three applications of 1 ampoule of OSTEONIL®, one per week for three weeks + 1ml of Hexacetonide of triamcinolone only in the first injection. Primary endpoint was clinical results expressed by Visual Analogic Scale of pain (VAS), Western Ontario and Mcmaster Universities (WOMAC) and Lequesne questionaires at one, three, six and 12 months after the procedure

Description:

Viscosupplementation by intra-articular injection of hyaluronate products has recently gained popularity as a treatment modality of gonarthritis. Hyaluronic Acid is responsible for the elasticity and viscosity of the synovial fluid, protecting the joint. Biopsy studies show that besides the gain in pain and function, viscosupplementation may lead to structural changes of the cartilage. Currently there are several studies on the effect of intra-articular injection of hyaluronic acid in gonarthritis. There is not, however, a consensus on the best method. Regarding the substance to be injected, corticosteroids alone exhibit rapid results, but poor durability. Viscosupplementation shows more consistent results. However, especially when using derivatives with higher molecular weight hyaluronan, there is a significant number of patients that present an acute synovial reaction to viscosupplementation specially in the first cycle of three injections. The association triamcinolone injection with hyaluronic acid decreases the complaints in the first month of treatment. Our objective is to evaluate what is the best dosage of viscosupplementation with hyaluronic acid (OSTEONIL®) associated with 1 ml (20 mg) of triamcinolone hexacetonide by comparing two groups of patients with knee OA, the first with a single application of 3 ampoules and second with three applications, one per week for three weeks. One hundred and four knee osteoarthritis (KOA) patients, which are currently in usual care for KOA at the Osteometabolic Group - Department of Orthopedics and Traumatology - University of São Paulo General Hospital - will be assessed. After signing the informed consent, participants will respond WOMAC™, Lequesne™, VAS, SF-36 (quality of life) and subjective IKDC (International Knee Documentation Committee). The questionnaires and functional assessment will be performed before the procedure infiltration with 1month, 3 months, 6 months and 1 year of intervention.Twenty Patients will be submitted to evaluation using force platform and balance NeuroCom ®, with the following tests: weight support during the squat (weight bearing squat (WBS), one-leg support (unilateral stance (U.S.), from sitting to foot (sit to stand - STS). Previously, at 1 month, 3 month, 6 month and 12 months after the intervention.

Frontal weight-bearing, profile and axial radiographs will be performed to radiologically assess participants' knees.Patients will be randomly divided into two groups of 54 patients, (groups 1 and 2). Patients in group 1 (G1) will be submitted to viscosupplementation with 1 application of 3 vials of hyaluronic acid 20mg/2ml (OSTEONIL®) and 1 ml (20 mg) triamcinolone, whereas group 2 patients will be submitted to viscosupplementation with three applications of one ampoule of hyaluronic acid 20 mg/2ml (one per week for three weeks), with the first application of OSTEONIL® with 1 ml (20 mg) triamcinolone.

Recruitment information / eligibility

• Status: Completed
• Enrollment: 104
• Est. completion date: April 2014
• Est. primary completion date: March 2014
• Accepts healthy volunteers: No
• Gender: Both
• Age group: 40 Years and older

Eligibility

Inclusion Criteria:

• Met the American College of Rheumatology criteria for hip osteoarthritis

• No knee intraarticular injections in the last 6 months

Exclusion Criteria:

• Severe reaction to the procedure

Study Design

Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Treatment

Related Conditions & MeSH terms

• Osteoarthritis

Intervention

Drug:
• viscosupplementation 1+1+1
intra-articular injection with 1 ampoule per week for 3 weeks
• viscosupplementation 3 at once
single intra-articular injection with 3 ampoules

Locations

Country	Name	City	State
Brazil	Instituto de Ortopedia e Traumatologia HC-FMUSP	São Paulo	SP

Sponsors (1)

Lead Sponsor	Collaborator
University of Sao Paulo General Hospital

Country where clinical trial is conducted

Brazil, 

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	WOMAC	Pain and function assessment with WOMAC questionaire	6 months	No
Primary	VAS	Pain assessment with Visual Analogic Scale (VAS)	6 months	No
Primary	LEQUESNE	Pain and function assessment with Lequesne questionaire	6 months	No