Hs-CRP-Guided Colchicine Treatment Targets in Very-High-Risk Patients With Coronary Artery Disease After PCI (TARGET-CHD)
Colchicine Titration Guided by Hs-CRP Targets on Cardiovascular Events in Very-High-Risk Coronary Heart Disease Patients After PCI: A Multicenter, Randomized, Open-Label, Noninferiority Trial
This multicenter, randomized, open-label, noninferiority trial will compare two high-sensitivity C-reactive protein (hs-CRP) target-guided colchicine strategies in 1,768 adults with very-high-risk coronary artery disease after percutaneous coronary intervention, LDL cholesterol ≤1.4 mmol/L, and residual inflammation (hs-CRP 2.0-10.0 mg/L). Participants will be assigned 1:1 to a standard target of 1.0 to <2.0 mg/L or an intensive target of <1.0 mg/L. Both groups will start colchicine 0.25 mg orally once daily, with dose adjustments guided by hs-CRP and tolerability. The primary outcome is the 18-month composite of cardiovascular death, nonfatal myocardial infarction, nonfatal ischemic stroke, or ischemia-driven revascularization. The noninferiority hypothesis compares the standard target strategy with the intensive target strategy, with a prespecified hazard-ratio margin of 1.30.
Descripción general del estudio
Estado
Estado
Condiciones
Condiciones
Intervención / Tratamiento
Intervención / Tratamiento
Descripción detallada
Adults with coronary artery disease after PCI who meet very-high-risk atherosclerotic cardiovascular disease criteria, have fasting LDL cholesterol ≤1.4 mmol/L within 1 month, and have fasting hs-CRP 2.0-10.0 mg/L within 7 days before enrollment will be randomized through a central system. Randomization is stratified by center, baseline hs-CRP (<5 vs ≥5 mg/L), and age (<65 vs ≥65 years). All participants continue standard coronary disease care and start colchicine 0.25 mg orally daily. At 1 month, the intensive group maintains the dose when hs-CRP is <1.0 mg/L or, if tolerated, increases to 0.5 mg daily otherwise. The standard group reduces to 0.25 mg every other day if hs-CRP is <1.0 mg/L, continues 0.25 mg daily if hs-CRP is 1.0 to <2.0 mg/L, or, if tolerated, increases to 0.5 mg daily if hs-CRP is ≥2.0 mg/L. Participants who increase to 0.5 mg daily undergo repeat assessment after another month. If the assigned target remains unmet after one month at 0.5 mg daily, protocol-directed colchicine is stopped while clinical and safety follow-up continues under the original randomized assignment. Doses may be reduced or treatment stopped for adverse reactions; interruptions may occur during acute infection or elective surgery. Follow-up assessments occur at 1, 3, 6, 12, and 18 months, with an additional 2-month assessment for participants whose dose was increased at 1 month. An independent blinded clinical events committee adjudicates events.
Tipo de estudio
Tipo de estudio
Inscripción (Estimado)
Inscripción
Fase
Fase
- No aplica
Contactos y Ubicaciones
Estudio Contacto
Estudio Contacto
- Nombre: Wenbin Zhang, Dr.
- Número de teléfono: 0571-86006241
- Correo electrónico: wzhang_crf@126.com
Ubicaciones de estudio
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Zhejiang
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Hangzhou, Zhejiang, Porcelana
- Sir Run Run Shaw Hospital
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Contacto:
- Wenbin Zhang, Dr.
- Número de teléfono: 0571-86006241
- Correo electrónico: wzhang_crf@126.com
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Investigador principal:
- Wenbin Zhang, Dr.
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Criterios de participación
Criterio de elegibilidad
Criterio de elegibilidad
Edades elegibles para estudiar
Acepta Voluntarios Saludables
Géneros elegibles para el estudio
Descripción
Inclusion Criteria:
- Age ≥18 years.
- Diagnosed coronary artery disease and prior percutaneous coronary intervention.
- Very-high-risk atherosclerotic cardiovascular disease, defined as at least two major ASCVD events or one major ASCVD event plus at least two high-risk conditions according to the 2023 Chinese lipid management guideline.
- Fasting LDL cholesterol ≤1.4 mmol/L measured within 1 month before enrollment.
- Fasting hs-CRP 2.0-10.0 mg/L measured within 7 days before enrollment, without a recent infection, surgery, trauma, or other acute inflammatory condition.
- Voluntary written informed consent.
Exclusion Criteria:
- Contraindication or allergy to colchicine, or colchicine use within the prior 4 weeks.
- ALT or AST >3 times the upper limit of normal, or eGFR <30 mL/min/1.73 m².
- Acute gout flare, serious infection requiring intravenous antibiotics, major surgery, or major trauma within the preceding 3 months.
- Malignancy with expected survival <18 months, autoimmune disease, ongoing immunosuppressive treatment, or chronic active infection such as active tuberculosis or hepatitis.
- Critical illness, psychiatric illness or cognitive impairment affecting informed participation, or pregnancy, as specified among excluded vulnerable groups in the protocol.
- Strong CYP3A4/P-glycoprotein inhibitor (e.g., clarithromycin, itraconazole, cyclosporine, verapamil) or moderate inhibitor (e.g., erythromycin, fluconazole) within 1 month before enrollment.
- Concurrent participation in another interventional clinical study.
- Any other reason the investigator considers the participant unsuitable.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Ninguno (etiqueta abierta)
Número de brazos
Armas e Intervenciones
Grupo de participantes/brazoGrupo de participantes/brazo |
Intervención / TratamientoIntervención / Tratamiento |
|---|---|
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Experimental: Standard hs-CRP Target (1.0 to <2.0 mg/L)
Colchicine 0.25 mg orally once daily at initiation, with hs-CRP-guided adjustments to target 1.0 to <2.0 mg/L. At 1 month, reduce to 0.25 mg every other day if hs-CRP <1.0 mg/L; maintain 0.25 mg daily if 1.0 to <2.0 mg/L; or, if tolerated, increase to 0.5 mg daily if ≥2.0 mg/L. If the target remains unmet after one month at 0.5 mg daily, stop protocol-directed colchicine and continue endpoint/safety follow-up. Dose reduction or discontinuation is permitted for adverse reactions. |
Oral colchicine 0.25 mg daily initially, titrated or reduced according to hs-CRP target 1.0 to <2.0 mg/L and tolerability, with a maximum of 0.5 mg daily Oral colchicine 0.25 mg daily initially, titrated according to hs-CRP target <1.0 mg/L and tolerability, with a maximum of 0.5 mg daily |
|
Comparador activo: Intensive hs-CRP Target (<1.0 mg/L)
Colchicine 0.25 mg orally once daily at initiation, with hs-CRP-guided adjustments to target <1.0 mg/L. At 1 month, maintain 0.25 mg daily if hs-CRP <1.0 mg/L; otherwise, if tolerated, increase to 0.5 mg daily. If the target remains unmet after one month at 0.5 mg daily, stop protocol-directed colchicine and continue endpoint/safety follow-up. Dose reduction or discontinuation is permitted for adverse reactions. |
Oral colchicine 0.25 mg daily initially, titrated or reduced according to hs-CRP target 1.0 to <2.0 mg/L and tolerability, with a maximum of 0.5 mg daily Oral colchicine 0.25 mg daily initially, titrated according to hs-CRP target <1.0 mg/L and tolerability, with a maximum of 0.5 mg daily |
¿Qué mide el estudio?
Medidas de resultado primarias
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Major Adverse Cardiovascular Events Through 18 Months
Periodo de tiempo: From randomization through 18 months
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Time to first occurrence of cardiovascular death, nonfatal myocardial infarction, nonfatal ischemic stroke, or ischemia-driven coronary revascularization. The primary noninferiority comparison is the hazard ratio for the standard hs-CRP target strategy versus the intensive hs-CRP target strategy, with a prespecified margin of 1.30; events are adjudicated by an independent blinded clinical events committee. |
From randomization through 18 months
|
Medidas de resultado secundarias
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Key Safety Composite Event Through 18 Months
Periodo de tiempo: From randomization through 18 months
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Time to first occurrence of CTCAE grade ≥3 gastrointestinal adverse reaction, symptomatic creatine kinase elevation or rhabdomyolysis, ≥30% decline in estimated glomerular filtration rate, or drug-related serious adverse event. A superiority comparison of the two randomized strategies is prespecified; the direction and multiplicity sequence must match the final protocol |
From randomization through 18 months
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Cardiovascular Death Through 18 Months
Periodo de tiempo: From randomization through 18 months
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Time to cardiovascular death, as adjudicated by the blinded clinical events committee. Time Frame: From randomization through 18 months |
From randomization through 18 months
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Nonfatal Myocardial Infarction Through 18 Months
Periodo de tiempo: From randomization through 18 months
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Time to nonfatal myocardial infarction as defined in the protocol and adjudicated by the blinded clinical events committee. |
From randomization through 18 months
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Nonfatal Ischemic Stroke Through 18 Months
Periodo de tiempo: From randomization through 18 months
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Time to nonfatal ischemic stroke as defined in the protocol and adjudicated by the blinded clinical events committee. |
From randomization through 18 months
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Ischemia-Driven Revascularization Through 18 Months
Periodo de tiempo: From randomization through 18 months
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Time to PCI or coronary bypass surgery performed because of ischemic symptoms or objective evidence of myocardial ischemia |
From randomization through 18 months
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Change in hs-CRP From Baseline
Periodo de tiempo: Baseline and 3, 6, 12, and 18 months
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Change in fasting hs-CRP concentration from baseline, expressed in mg/L, at each scheduled follow-up assessment. |
Baseline and 3, 6, 12, and 18 months
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Proportion With hs-CRP <1.0 mg/L
Periodo de tiempo: 3, 6, 12, and 18 months
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Proportion of evaluated participants with fasting hs-CRP <1.0 mg/L at each scheduled assessment. |
3, 6, 12, and 18 months
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Proportion With hs-CRP <2.0 mg/L
Periodo de tiempo: 3, 6, 12, and 18 months
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Proportion of evaluated participants with fasting hs-CRP <2.0 mg/L at each scheduled assessment. |
3, 6, 12, and 18 months
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Average Daily Colchicine Dose
Periodo de tiempo: From randomization through 18 months
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Average administered daily colchicine dose in milligrams over the treatment period; exact denominator and handling of interruptions to be specified in the statistical analysis plan. |
From randomization through 18 months
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Colchicine Dose Reduction
Periodo de tiempo: From randomization through 18 months
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Proportion of participants with at least one protocol-directed reduction in colchicine dose. |
From randomization through 18 months
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Colchicine Discontinuation
Periodo de tiempo: From randomization through 18 months
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Proportion of participants who permanently discontinue protocol-directed colchicine, with reasons recorded |
From randomization through 18 months
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Cumulative Colchicine Exposure Duration
Periodo de tiempo: From randomization through 18 months
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Total number of days taking colchicine during study follow-up; interruptions and discontinuations are recorded. |
From randomization through 18 months
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Colaboradores e Investigadores
Patrocinador
Patrocinador
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Estimado)
Inicio del estudio
Finalización primaria (Estimado)
Finalización primaria
Finalización del estudio (Estimado)
Finalización del estudio
Fechas de registro del estudio
Enviado por primera vez
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Publicado por primera vez
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización publicada
Última actualización enviada que cumplió con los criterios de control de calidad
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Última verificación
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
Otros números de identificación del estudio
- TARGET-CHD
Plan de datos de participantes individuales (IPD)
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Información sobre medicamentos y dispositivos, documentos del estudio
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