Overview

This trial is active, not recruiting.

Conditions primary osteoarthritis, rheumatoid arthritis, post-traumatic arthritis, avascular necrosis
Treatments tc-a ps total knee replacement system, tc-plus solution ps total knee replacement system
Sponsor Smith & Nephew Medical (Shanghai) Ltd
Start date September 2014
End date November 2016
Trial size 162 participants
Trial identifier NCT02139345, 13-4060-04

Summary

This is a prospective, randomized, multicenter clinical study to compare the safety and efficacy of TC-A PS total knee system with TC-PLUS Solution PS total knee system in Chinese subjects.

United States No locations recruiting
Other Countries No locations recruiting

Study Design

Allocation randomized
Endpoint classification safety/efficacy study
Intervention model parallel assignment
Masking open label
Primary purpose treatment
Arm
(Experimental)
Subject will be implanted with the TC-A PS Total Knee Replacement System
tc-a ps total knee replacement system TC-A PS
Subject will be implanted with the TC-A PS Total Knee Replacement System
(Active Comparator)
Subject will be implanted with the TC-PLUS Solution PS Total Knee Replacement System.
tc-plus solution ps total knee replacement system TC-PLUS Solution PS
Subject will be implanted with the TC-PLUS Solution PS Total Knee Replacement System

Primary Outcomes

Measure
The Original Knee Society Clinical Score (KSCS)
time frame: 1 year post-operative

Secondary Outcomes

Measure
The Original Knee Society Functional Score (KSFS)
time frame: 1 year post-operative
Revision for any reason
time frame: Up to 1 year post-operative
Linear radiolucencies and radiographic abnormalities
time frame: Up to 1 year post-operative
Western Ontario and McMaster Universities Arthritis Index (WOMAC)
time frame: 1 year post-operative
SF-12 Health Survey
time frame: 1 year post-operative
Number of subjects with adverse events
time frame: Up to 1 year post-operative

Eligibility Criteria

Male or female participants from 50 years up to 75 years old.

Inclusion Criteria: - Male or female subjects, aged between 50 and 75 years inclusive of Chinese ethnicity. - Subject presents with primary osteoarthritis, rheumatoid arthritis, post-traumatic arthritis or avascular necrosis of knee joint requiring primary total knee replacement with the PS knee system. - Subject who is able to give voluntary, written informed consent to participate in the study and from whom consent has been obtained by signing and dating an EC-approved consent form. - Subject who is able to understand this clinical study, co-operates with the investigational procedures and is willing to return to the hospital for all the required post-operative follow-ups for up to 12 months. - Life expectancy of subject is over 2 years. Exclusion Criteria: - Bilateral knee disease with the anticipated need for bilateral knee implant during study participation (i.e., within the next 12 months). - Subject has known or suspected metal sensitivity. - Subject is known to have insufficient femoral or tibial bone stock resulting from conditions such as cancer, distal femoral/proximal tibial osteotomy, significant osteoporosis or metabolic bone disorders, which cannot provide adequate support and/or fixation to the prosthesis. - Subject is severely obese (BMI>35). - Subject has hip arthritis and/or replacement. - Subject had an active infection or sepsis (treated or untreated) - Subject has conditions that may compromise implant stability or postoperative recovery (i.e., Paget's or Charcot's disease, vascular insufficiency, muscular atrophy, uncontrolled diabetes, moderate to severe renal insufficiency or neuromuscular disease). - Subject has an emotional or neurological condition that would affect their ability or willingness to participate in the study (e.g. mental illness, mental retardation). - Subject is immunosuppressed, has an autoimmune disorder, or an immunosuppressive disorder. For examples, subject is on immunosuppressive therapy (corticosteroid hormones in large amounts, cytotoxic drugs, antilymphocytic serum or irradiation in large doses) or has acquired immunodeficiency syndrome (AIDS). - Subject is a woman who is pregnant or lactating,or intends to become pregnant during the course of the study. - Subject is known to be at risk for lost to follow-up, or failure to return for scheduled visits. - Subject was enrolled in another investigational drug, biologic, or device study in the last 12 months. - Known alcohol and/or drug abuse

Additional Information

Official title A Prospective, Randomized, Multicenter Clinical Study to Compare the Safety and Efficacy of TC-A PS Total Knee System With TC-PLUS Solution PS Total Knee System in Chinese Subjects
Principal investigator Jianhao Lin, Professor
Description Osteoarthritis (OA), also known as degenerative joint disease or hyperostosis, is the most common cause of knee arthritis. Pain, dyskinesia and disability induced by osteoarthritis impact severely on the subject's health and quality of life. Knee osteoarthritis is very common in the elderly population. As life expectancy has increased, the incidence of osteoarthritis rose significantly during the 20th century. For people over 60 years of age, approximately 50% show signs of osteoarthritis on x-rays, among which 35% -50% show clinical signs. For people over the age of 75, 80% had osteoarthritis symptoms. There has been an increase in imported knee prostheses during the past decade, so that surgeons now have more choices of implants. However, the high cost of imported prostheses has become a barrier to the development of TKA in China and caused many OA subjects requiring immediate TKA to have to delay or miss their surgery. The development and promotion of high-quality domestic joint implants and surgical instruments is the key to the development of TKA technique in China. The primary objective of this study is to demonstrate non-inferiority of subjects implanted with the TC-A PS total knee system compared to a randomized concurrent control group of subjects implanted with the TC-PLUS Solution PS total knee system in terms of Knee Society Clinical Score (KSCS) at 1 year.
Trial information was received from ClinicalTrials.gov and was last updated in August 2016.
Information provided to ClinicalTrials.gov by Smith & Nephew Medical (Shanghai) Ltd.