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- Ensaio Clínico NCT01325818
The Effects of Pravastatin and Rosuvastatin on Coronary Plaques in Patients With Stable Angina Pectoris
The Effects of Pravastatin and Rosuvastatin on the Tissue Characteristics and Morphology of Coronary Plaques in Patients With Stable Angina Pectoris
Visão geral do estudo
Status
Condições
Intervenção / Tratamento
Descrição detalhada
Previous mega trials have demonstrated that lipid-lowering therapy with HMG-CoA reductase inhibitors in individuals with high risk of cardiovascular disease reduces the incidence of coronary heart disease. NCEP ATP-III has suggested the advantage of more intensive lipid lowering therapy with a goal of reducing LDL-C below 70 mg/dL for such patients categorized as very high risk. In Japan, Japan Atherosclerosis Society (JAS) Guidelines for Diagnosis and Treatment of Atherosclerotic Cardiovascular Diseases 2002 have recommended that an LDL-C goal for patients with coronary heart disease (CHD) should be below 100 mg/dL. However, there is no satisfactory evidence whether the investigators need to lower LDL-C level less than the 70mg/dL or not in Japanese population.
Recently, research on diagnosis of coronary plaque has shown significant advances. The REVERSAL study in patients with a history of CHD, by diagnosis with intravascular ultrasound (IVUS), suggested that intensive lipid lowering therapy with atorvastatin (80 mg/day) was associated with no growth of plaque (-0.4% compared to baseline), whereas therapy with pravastatin (40 mg/day) showed a slight increase (2.7%) in plaque volume over 18 months in Western population.
MEGA study has shown that lipid lowering therapy with pravastatin (10-20 mg/day) was associated with a 33% reduction in coronary heart disease incidence as the primary prevention in Japanese patients. However, the effect of lipid lowering therapy in secondary prevention of cardiovascular events is unknown.
Relative plaque regression rate between intensive and moderate lipid lowering therapy would clarify the ideal level of target LDL-C in Japanese population. Furthermore, the different effect on coronary plaque between pravastatin and rosuvastatin which have different LDL-C lowering effect and different affinity to arterial tissue would determine the superior lipid lowering regimen to affect coronary plaque volume.
Therefore, the aim of the present study is to evaluate whether there would be lipid lowering therapy differences in terms of the composition of coronary artery plaques in patients with stable angina pectoris (SAP) using integrated backscatter intravascular ultrasound (IB-IVUS) and optical coherence tomography (OCT).
Tipo de estudo
Inscrição (Antecipado)
Estágio
- Fase 4
Contactos e Locais
Locais de estudo
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Yokohama, Japão
- Recrutamento
- Yokohama City University Medical Center
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Contato:
- Kenichiro Saka
- Número de telefone: 81-45-261-5656
- E-mail: Ken_saka@yokohama-cu.ac.jp
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Investigador principal:
- Kenichiro Saka
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Critérios de participação
Critérios de elegibilidade
Idades elegíveis para estudo
Aceita Voluntários Saudáveis
Gêneros Elegíveis para o Estudo
Descrição
Inclusion Criteria:
- Patients who have been diagnosed as stable angina pectoris, and successful percutaneous coronary intervention (PCI) were performed with intravascular ultrasound (IVUS) and optical coherence tomography (OCT) guidance.
- Patients having coronary plaques (≧ 500 µm in thickness or % plaque of 20% or more at ≧ 5 mm distal or proximal to the previously treated area in the same branch of coronary artery.
Patients with dyslipidemia as defined by any of the following criteria:
- TC ≧ 220 mg/dL
- LDL-C ≧ 140 mg/dL
- Cholesterol-lowering treatment is allowed according to the investigator's judgment when LDL-C ≧ 100 mg/dL or TC ≧ 180mg/dL.
- Patients who are under cholesterol-lowering treatment and LDL-C ≦ 120 mg/dL
- Patients 20 years or older at the time of their consent.
- Patients with written consent by their own volition after being provided sufficient explanation for their participation in this clinical trial.
Exclusion Criteria:
- Patients with bypass graft or in-stent restenosis at the site of PCI.
- Patients who received PCI in the past on the lesion where the evaluation of coronary plaque volume is planned.
- Patients who had plaques in a non-culprit site and might receive PCI during the treatment period.
- Patients receiving lipid-lowering drugs (fibrates, probucol, nicotinic acid, cholestyramine or cholesterol absorption inhibitors).
- Patients with familial hypercholesterolemia.
- Patients with cardiogenic shock.
- Patients receiving cyclosporine.
- Patients with any allergy to pravastatin and rosuvastatin.
- Patients with hepatobiliary disorders.
- Pregnant women, women suspected of being pregnant, or lactating women.
- Patients with renal disorders (Cr≧2.0mg/dL) or undergoing dialysis.
- Patients who are ineligible in the opinion of the investigator.
Plano de estudo
Como o estudo é projetado?
Detalhes do projeto
- Finalidade Principal: Tratamento
- Alocação: Randomizado
- Modelo Intervencional: Atribuição Paralela
- Mascaramento: Nenhum (rótulo aberto)
Armas e Intervenções
Grupo de Participantes / Braço |
Intervenção / Tratamento |
|---|---|
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Comparador Ativo: 1:pravastatin, 2:rosuvastatin
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O que o estudo está medindo?
Medidas de resultados primários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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the percent change in fibrous cap thickness by optical coherence tomography
Prazo: 9-11 months
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the percent change in fibrous cap thickness by optical coherence tomography
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9-11 months
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Medidas de resultados secundários
Medida de resultado |
Descrição da medida |
Prazo |
|---|---|---|
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the percent change and the absolute change from baseline in coronary plaque volume and IB signal obtained by IB-IVUS
Prazo: 9-11 months
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the percent change and the absolute change from baseline in coronary plaque volume, the percent change in integrated backscatter signal obtained by integrated backscatter IVUS
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9-11 months
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the absolute change from baseline in number of TCFA and plaque rupture, and in neointima thickness on stent struts by OCT
Prazo: 9-11 months
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the absolute change from baseline in number of TCFA, plaque rupture, thrombus, calcification, and in neointima thickness on stent struts by optical coherence tomography
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9-11 months
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the percent change and the absolute change from baseline in total cholesterol and LDL cholesterol
Prazo: 9-11 months
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the percent change and the absolute change from baseline in total cholesterol and low-density lipoprotein cholesterol
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9-11 months
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Colaboradores e Investigadores
Patrocinador
Investigadores
- Cadeira de estudo: Kiyoshi Hibi, Yokohama City University Medical Center
Datas de registro do estudo
Datas Principais do Estudo
Início do estudo
Conclusão Primária (Antecipado)
Conclusão do estudo (Antecipado)
Datas de inscrição no estudo
Enviado pela primeira vez
Enviado pela primeira vez que atendeu aos critérios de CQ
Primeira postagem (Estimativa)
Atualizações de registro de estudo
Última Atualização Postada (Estimativa)
Última atualização enviada que atendeu aos critérios de controle de qualidade
Última verificação
Mais Informações
Termos relacionados a este estudo
Palavras-chave
- Dislipidemia
- Doenças cardiovasculares
- Doença arterial coronária
- Ações Farmacológicas
- Rosuvastatina
- Arteriosclerose
- Doenças cardíacas
- Usos terapêuticos
- Antimetabólitos
- Doença cardíaca
- Inibidores da hidroximetilglutaril-CoA redutase
- Mecanismos Moleculares de Ação Farmacológica
- Angina Pectoris Estável
- Doenças Arteriais Oclusivas
- Agentes Anticolesterêmicos
- Antilipêmicos
- Vascular Diseases Pravastatin
Termos MeSH relevantes adicionais
- Isquemia do miocárdio
- Doenças cardíacas
- Doenças cardiovasculares
- Doenças Vasculares
- Doenças Metabólicas
- Arteriosclerose
- Doenças Arteriais Oclusivas
- Dor
- Manifestações Neurológicas
- Distúrbios do metabolismo lipídico
- Hiperlipidemias
- Dislipidemias
- Dor no peito
- Doença arterial coronária
- Doença cardíaca
- Hipercolesterolemia
- Angina Pectoris
- Angina, Estável
- Mecanismos Moleculares de Ação Farmacológica
- Inibidores Enzimáticos
- Antimetabólitos
- Agentes Anticolesterêmicos
- Agentes Hipolipidêmicos
- Agentes Reguladores Lipídicos
- Inibidores da hidroximetilglutaril-CoA redutase
- Rosuvastatina Cálcio
- Pravastatina
Outros números de identificação do estudo
- YCUMC20110324
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