P2Y12 Inhibitor Versus Aspirin Monotherapy in Patients Undergoing Elective Screening and Surveillance Colonoscopy
试验速览
- 阶段
- 4 期
- 状态
- 尚未招募
- 入组人数
- 100
- 试验地点
- 1
- 主要终点
- Primary safety endpont
研究概览
简要总结
Patients on dual antiplatelet therapy )aspirin plus a P2Y12 inhibitor [clopidogrel, prasugrel, or ticagrelor]) undergoing screening or surveilance colonoscopy are at increased risk for bleeding from the procedure. Patients are ussually asked to stop the P2Y12 inhibitor for the procedure. Currently, recommendation is that patients only on a P2Y12 inhibitor be changes to aspirin for the procedure. This pilot study will evaluate if there is a large difference in bleeding between patients only taking aspirin compared with patients only taking a P2Y12 inhibitor. Patinets who participate will randomly be randomly asked to stop either aspirin or the P2Y12 inhibitor 1 week before the procedure. Periprocedural bleeding and bleeding after the procedure for iup to 30 days.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Supportive Care
- 盲法
- Double (Care Provider, Investigator)
入排标准
- 年龄范围
- 45 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Age ≥ 45 years
- •Stable patients defined as having Angina CCS (Canadian Cardiovascular Society) class 1-3 and/or Heart Failure NYHA class 1-2 without a change in guideline directed anti-ischemic or heart failure medications within 30 days prior to randomization.
- •Patients with cardiovascular disease defined as coronary artery disease, cerebrovascular disease or peripheral vascular disease taking DAPT (defined as aspirin plus a P2Y12 inhibitor). The decision to use DAPT in this patient will be made by the managing physician(s) before recruitment for this study. Consider replacing last statement with "As directed by their physician prior to recruitment into this study"
- •Scheduled for elective screening or surveillance outpatient colonoscopy
排除标准
- •Coronary intervention (PCI or CABG) less than 90 days prior to randomization
- •ACS event in less than 90 days prior to randomization
- •Transient ischemic attack (TIA) and/or stroke event in less than 90 days prior to randomization
- •Acute limb ischemia and/or amputation in less than 90 days prior to randomization
- •Post cardiac valve replacement (either percutaneous or surgical)
- •High cardiovascular risk:
- •Patients with CCS class 4 angina
- •Hospitalized with ACS within 1 month prior to randomization
- •Patients undergoing PCI or CABG within the 3 months prior to randomization
- •Patients on left ventricular assist device (LVAD) or post cardiac transplantation
- •Patients with NYHA class 3 or 4 heart failure
- •Any condition requiring treatment requires chronic use of an anticoagulant.
- •Chronic kidney disease Stage 5 (with or without dialysis)
- •Liver cirrhosis with platelet count < 50,000/ mm3 and/or INR >1.4
- •Hematocrit < 30% and hemoglobin < 10 mg/dL
- •Emergent or inpatient Colonoscopy
研究组 & 干预措施
Aspirin only
Participants receiving aspirin only at time of the colonoscopy
干预措施: Aspirin (Drug)
P2Y12 inhibitor only
Participants receiving a P2Y12 inhibitor only at time of the colonoscopy
干预措施: P2Y12 inhibitor (clopidogrel, ticagrelor, prasugrel) (Drug)
结局指标
主要结局
Primary safety endpont
时间窗: 7 days
Composite of: * Use of endoscopic clips post-polypectomy to control persistent intraprocedural bleeding (defined as bleeding persisting for greater than 2 minutes), * Major delayed bleeding, which was symptomatically or clinically overt and associated with an unplanned admission or readmission to hospital for rectal bleeding, * Bleeding that directly contributed to death, * Minor bleeding defined as any sign or symptom of peri-rectal bleeding that did not fit the above criteria, * Need for further intervention to control bleeding such as endoscopic, surgical, or radiological intervention, or * Bleeding causes a fall in hemoglobin ≥ 2 g/dL or leads to transfusion of whole blood or red cells.
次要结局
未报告次要终点