Esta página foi traduzida automaticamente e a precisão da tradução não é garantida. Por favor, consulte o versão em inglês para um texto fonte.

Efficacy of Three Weekly Injections of a Bacterial-- Sourced Hyaluronate on Pain and Function in Patients With Knee Osteoarthritis (OA)

19 de agosto de 2010 atualizado por: Kaohsiung Veterans General Hospital.

Efficacy of 3 Weekly Injections of a Bacterial-- Sourced Hyaluronate on Pain and Physical Function in Patients With Knee Osteoarthritis-a Randomized Controlled Clinical Trial

Three weekly injections of hyaluronate (Hya-Joint) are safe and well tolerated, provide rapid pain relief as early as 1 and 2 weeks after the first injection, and improve function in patients with knee osteoarthritis. The treatment effects can last for 6 months.

Visão geral do estudo

Status

Concluído

Condições

Intervenção / Tratamento

Descrição detalhada

Background: Viscosupplementation with intra-articular hyaluronate injections is a safe and effective treatment of knee osteoarthritis. There are several forms of hyaluronate with different origin, method of production, molecular weight, dosing instructions and possibly clinical outcomes. Most current hyaluronate products are avian in origin, and only few are bioengineered via bacterial fermentation. The purpose of this study was to evaluate the efficacy and safety of 3 weekly injections of a bacterial-sourced hyaluronate (Hya-Joint) in patients with knee osteoarthritis.

Methods: As a prospective randomized observer-blind study done in a university-affiliated tertiary care medical center, patients with knee osteoarthritis for at least 6 months were enrolled. Eligible patients were randomized to receive three weekly intraarticular injections of either bacterial-sourced hyaluronate (Hya-Joint) or avian-derived hyaluronate (Hyalgan) into the target knee. The primary outcome was the visual analog scale (VAS) change from baseline for knee pain at 6-month follow-up. Secondary outcome measures included Lequesne index, timed up and go test (TUG), patients' global satisfaction and analgesics consumption.

Results: A total of 95 participants were randomly assigned and 89 participants completed the study. Both groups had significant improvements in pain as early as 1 and 2 weeks after the first injection, and the pain-reduction effects could last for 6 months, with no between-group differences. The Lequesne index scores and results of TUG tests improved significantly from baseline in both group at all follow-up visits (p<0.001 for each test compared with baseline), with no significant between-group differences at 1-month and 6-month follow-up. However, significantly greater improvements favoring the Hya-Joint group were noted at 3-month follow-up (p<0.05). No between-group differences were seen regarding the use of analgesics. Both groups reported high satisfaction at 6-month follow-up. No serious adverse events occurred.

Conclusions: Three weekly injections of hyaluronate (Hya-Joint) are safe and well tolerated, provide rapid pain relief as early as 1 and 2 weeks after the first injection, and improve function in patients with knee osteoarthritis. The treatment effects can last for 6 months.

Tipo de estudo

Intervencional

Inscrição (Real)

89

Estágio

  • Fase 2

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Locais de estudo

  • Taiwan
      • Kaohsiung, Taiwan, 813
        • Department of Physical Medicine and Rehabilitation, Veterans General Hospital,

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

40 anos a 80 anos (Adulto, Adulto mais velho)

Aceita Voluntários Saudáveis

Não

Gêneros Elegíveis para o Estudo

Tudo

Descrição

Inclusion Criteria:

  • (1) age 40 years or older, presence of a primary knee OA with knee pain for at least 6 months despite conservative treatment (rest, physical therapy, orthoses or pain medications etc.); (2) had average pain on knee movement of at least 3 cm on a 10-cm VAS; (3) had a current Lequesne index score (described below) >7 (possible range, 0-24); (4) were willing to discontinue all nonsteroidal anti-inflammatory drugs (NSAIDs) or other analgesic medication (except for rescue medication) for the duration of the study; and (5) were willing to not receive physical therapy or trial of shoe modifications or orthoses during the study period.

Exclusion Criteria:Exclusion criteria included previous orthopedic surgery on the spine or lower limbs, knee instability or marked deformity on examination, clinically apparent tense effusion of the knee, intra-articular steroid or HA injection in any joint within the past 6 months, and concomitant inflammatory arthropathy or other rheumatologic, neurological, cardiovascular or psychiatric disorders that would interfere with the clinical assessment during the study period.

-

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Finalidade Principal: Tratamento
  • Alocação: Randomizado
  • Modelo Intervencional: Atribuição Paralela
  • Mascaramento: Solteiro

Armas e Intervenções

Grupo de Participantes / Braço
Intervenção / Tratamento
Experimental: Hya-Joint
The Hya-Joint group received 3 weekly intraarticular injections of 2 ml sodium hyaluronate (Hya-Joint, derived from Streptococcus zooepidemicus and produced by a highly purified biologic fermentation process, molecular weight 650-1200 kDa),into the target knee.
Procedimento: Hya-Joint
The Hya-Joint group received 3 weekly intraarticular injections of 2 ml sodium hyaluronate (Hya-Joint, derived from Streptococcus zooepidemicus and produced by a highly purified biologic fermentation process, molecular weight 650-1200 kDa),into the target knee.
Comparador Ativo: Hyalgan
the control group received 3 weekly intraarticular injections of 2 ml sodium hyaluronate (, extracted from chicken combs, molecular weight 500-730kDa) into the knee joints.
Procedimento: Hyalgan
The control group received 3 weekly intraarticular injections of 2 ml sodium hyaluronate (Hyalgan, extracted from chicken combs, molecular weight 500-730kDa) into the knee joints.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
visual analog scale
Prazo: 6 months after the third injection
The patient rated the intensity of pain with regard to average pain on knee movement over the previous week using a 10-cm horizontal VAS (10-cm line; 0= no pain to 10= worst imaginable pain)
6 months after the third injection

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Lequesne index
Prazo: 6 months after the third injection
Lequesne index was used to assess severity of knee symptoms during the last week23. It is validated and includes the measurement of pain (5 items), walking distance (2 items), and activities of daily living (4 items). Maximal score is 24 and higher scores represent worse function
6 months after the third injection
Timed " Up-and-Go" test
Prazo: 6 months after the third injection.
Timed " Up-and-Go" test (TUG) is a simple test of basic physical functional mobility for frail elderly persons with high interrater reliability and content reliability24. A patient is asked to rise from an armchair, walk 3 meters at a safe and comfortable pace, turn around, walk back to the chair, and sit down again. The whole procedure is demonstrated first before the actual test. The score is the time in seconds it takes to complete these tasks
6 months after the third injection.
the level of global satisfaction
Prazo: 6 months after the third injection.
Patients were asked to rate the level of global satisfaction compared to their preinjection condition at each follow-up visit. The rating was based on a 7-point categorical scale weighted from completely satisfied, satisfied, somewhat satisfied, no change, somewhat dissatisfied, dissatisfied to completely dissatisfied.
6 months after the third injection.

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

Kaohsiung Veterans General Hospital.

Investigadores

  • Investigador principal: Shu-Fen Sun, MD, Veterans General Hospital, Kaohsiung;National Yang-Ming University School of Medicine, Taiwan
  • Investigador principal: Chien-Wei Hsu, MD, Department of Internal Medicine, Kaohsiung Veterans General Hospital
  • Investigador principal: Hsien-Pin Sun, MD, Cheng Ching Hospital, Taiwan
  • Investigador principal: Hung-Ju Li, MS, Institute of Statistics, National University of Kaohsiung, Taiwan
  • Investigador principal: Jue-Long Wang, MD, Kaohsiung Veterans General Hospital, Taiwan

Publicações e links úteis

A pessoa responsável por inserir informações sobre o estudo fornece voluntariamente essas publicações. Estes podem ser sobre qualquer coisa relacionada ao estudo.

Publicações Gerais

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo

1 de fevereiro de 2009

Conclusão Primária (Real)

1 de dezembro de 2009

Conclusão do estudo (Real)

1 de dezembro de 2009

Datas de inscrição no estudo

Enviado pela primeira vez

13 de agosto de 2010

Enviado pela primeira vez que atendeu aos critérios de CQ

19 de agosto de 2010

Primeira postagem (Estimativa)

20 de agosto de 2010

Atualizações de registro de estudo

Última Atualização Postada (Estimativa)

20 de agosto de 2010

Última atualização enviada que atendeu aos critérios de controle de qualidade

19 de agosto de 2010

Última verificação

1 de dezembro de 2008

Mais Informações

Termos relacionados a este estudo

Palavras-chave

Termos MeSH relevantes adicionais

Outros números de identificação do estudo

  • VGHKS97-CT9-12

Essas informações foram obtidas diretamente do site clinicaltrials.gov sem nenhuma alteração. Se você tiver alguma solicitação para alterar, remover ou atualizar os detalhes do seu estudo, entre em contato com register@clinicaltrials.gov. Assim que uma alteração for implementada em clinicaltrials.gov, ela também será atualizada automaticamente em nosso site .

Ensaios clínicos em Hya-Joint

Pesquisar ensaios semelhantes

Patrocinadores e Colaboradores

Condições médicas

Intervenções de drogas

CROs by country

CROs in Azerbaijan

Condições

Doenças Raras

Intervenções de drogas

Suplementos Alimentares

Patrocinador / Colaboradores

Localizações

Se inscrever