Intra-articular Polyacrylamide Hydrogel in the Treatment of Knee Osteoarthritis

NCT ID: NCT06523491

Last Updated: 2025-09-17

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

57 participants

Study Classification

OBSERVATIONAL

Study Start Date

2022-05-07

Study Completion Date

2024-05-18

Brief Summary

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1-year follow-up of a randomized controlled trial with open-label extension to assess the long-term efficacy and safety of Intra-articular HBISA Endoprosthesis of Synovial Fluid NOLTREX™ in Knee Osteoarthritis.

Detailed Description

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HBISA (polyacrylamide hydrogel) endoprosthesis of synovial fluid NOLTREX™ is intended for the symptomatic treatment of adult patients with osteoarthritis (OA) reducing pain and improving mobility.

The aim of this 1-year follow-up was to evaluate the long-term safety and efficacy of IA Polyacrylamide hydrogel with silver ions in patients with Kellgren-Lawrence grade 3 and 4 knee osteoarthritis who had received one or two treatment courses in the IA/PAAG-SI/OA/2019 and IA/PAAG-SI/OA/2020 studies.

Follow-up data were collected in telephone interviewing (using questionnaire) in April-July 2022, 12 months after the completion of OLE (IA/PAAG-SI/OA/2020).

Conditions

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Osteoarthritis, Knee

Study Design

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Observational Model Type

COHORT

Study Time Perspective

OTHER

Study Groups

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Group NOLTREX 2 courses

Group NOLTREX 2 courses consisted of 30 patients who had received 2 NOLTREX™ courses in the parent study (IA/PAAG-SI/OA/2019) and OLE (IA/PAAG-SI/OA/2020)

No interventions assigned to this group

Group NOLTREX 1 course

Group NOLTREX 1 course comprised 17 patients who received 1 NOLTREX™ course in the parent study (IA/PAAG-SI/OA/2019)

No interventions assigned to this group

Placebo group

Placebo group consisted of 10 patients who had received placebo in the parent study IA/PAAG-SI/OA/2019 and had not taken part in OLE. Of 72 patients approached, only 10 agreed to participate and completed the survey.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

The study included patients with KL grade 2-3 knee osteoarthritis who had completed study IA/PAAG-SI/OA/2019 and IA/PAAG-SI/OA/2020.

Exclusion Criteria

Declining participation in the survey Lost to follow-up
Minimum Eligible Age

50 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Research Centre BIOFORM

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Sergey M Noskov, Prof. PhD

Role: PRINCIPAL_INVESTIGATOR

State budgetary healthcare facility of Yaroslavl Region "Clinical hospital №3"

Locations

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Private Healthcare Facilty "Clinical hospital "RZHD-Medicina" of the city Saint-Petersburg

Saint Petersburg, , Russia

Site Status

State budgetary healthcare facility of Yaroslavl Region "Clinical hospital №3"

Yaroslavl, , Russia

Site Status

Countries

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Russia

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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IA/PAAG-SI/OA/2021

Identifier Type: -

Identifier Source: org_study_id

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