PeriOperative ISchemic Evaluation-2 Trial (POISE-2)
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ClinicalTrials.gov Identifier: NCT01082874 |
Recruitment Status :
Completed
First Posted : March 9, 2010
Results First Posted : August 25, 2016
Last Update Posted : August 25, 2016
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Cardiovascular Disease | Drug: Active Clonidine Drug: Placebo Clonidine Drug: Active ASA Drug: Placebo ASA | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 10010 participants |
Allocation: | Randomized |
Intervention Model: | Factorial Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Prevention |
Official Title: | A Large, International, Placebo-controlled, Factorial Trial to Assess the Impact of Clonidine and Acetyl-salicylic Acid (ASA) in Patients Undergoing Noncardiac Surgery Who Are at Risk of a Perioperative Cardiovascular Event |
Study Start Date : | July 2010 |
Actual Primary Completion Date : | March 2014 |
Actual Study Completion Date : | January 2015 |

Arm | Intervention/treatment |
---|---|
Experimental: Active Clonidine and Active ASA |
Drug: Active Clonidine
Pre-op (goal 2-4 hours): 2 x 0.1mg oral tablets and transdermal patch (0.2 mg/day). Patch to be removed 72 hours post-op.
Other Name: CATAPRES, CATAPRES-TTS Drug: Active ASA Pre-op (goal 2-4 hours): 2 x 100mg oral tablets. Post-op: patients ingest one tablet a day (100 mg ASA) for 7 days if patient was were taking ASA chronically prior to surgery or for 30 days if they were not chronically taking ASA prior to surgery
Other Name: ASPIRIN |
Experimental: Active Clonidine and Placebo ASA |
Drug: Active Clonidine
Pre-op (goal 2-4 hours): 2 x 0.1mg oral tablets and transdermal patch (0.2 mg/day). Patch to be removed 72 hours post-op.
Other Name: CATAPRES, CATAPRES-TTS Drug: Placebo ASA Pre-op (goal 2-4 hours): 2 oral placebo tablets. Post-op: patients ingest one placebo tablet a day for 7 days if patient was were taking ASA chronically prior to surgery or for 30 days if they were not chronically taking ASA prior to surgery |
Experimental: Placebo Clonidine and Active ASA |
Drug: Placebo Clonidine
Pre-op (goal 2-4 hours): 2 oral placebo tablets and transdermal placebo patch. Patch to be removed 72 hours post-op. Drug: Active ASA Pre-op (goal 2-4 hours): 2 x 100mg oral tablets. Post-op: patients ingest one tablet a day (100 mg ASA) for 7 days if patient was were taking ASA chronically prior to surgery or for 30 days if they were not chronically taking ASA prior to surgery
Other Name: ASPIRIN |
Placebo Comparator: Placebo Clonidine and Placebo ASA |
Drug: Placebo Clonidine
Pre-op (goal 2-4 hours): 2 oral placebo tablets and transdermal placebo patch. Patch to be removed 72 hours post-op. Drug: Placebo ASA Pre-op (goal 2-4 hours): 2 oral placebo tablets. Post-op: patients ingest one placebo tablet a day for 7 days if patient was were taking ASA chronically prior to surgery or for 30 days if they were not chronically taking ASA prior to surgery |
- Composite of All-cause Mortality and Nonfatal MI [ Time Frame: 30 days ]
- All-cause Mortality and Nonfatal MI [ Time Frame: 1 year ]
- Composite of All-cause Mortality, Nonfatal MI, and Nonfatal Stroke [ Time Frame: 30 days ]
- Individual Secondary Outcomes [ Time Frame: 30 days ]All-cause mortality, vascular mortality, MI, nonfatal cardiac arrest, cardiac revascularization procedure, pulmonary emboli, deep venous thrombosis, clinically important atrial fibrillation, amputation, peripheral arterial thrombosis, infection/sepsis, rehospitalization for vascular reasons, length of hospital stay, length of intensive care unit / cardiac care unit (ICU/CCU) stay, and new acute renal failure requiring dialysis.
- Composite Outcome by ASA Stratum [ Time Frame: 30 days ]Composite outcome of all-cause mortality, nonfatal MI, cardiac revascularization procedure, nonfatal pulmonary emboli, and nonfatal deep venous thrombosis.
- Safety Outcomes in ASA Trial [ Time Frame: 30 days ]Stroke, congestive heart failure, life-threatening bleeding, and major bleeding.
- Safety Outcomes in Clonidine Trial [ Time Frame: 30 days ]Stroke, clinically important hypotension, clinically important bradycardia, and congestive heart failure.
- Composite Outcome at 1 Year [ Time Frame: 1 year ]All-cause mortality, nonfatal MI, and nonfatal stroke.
- Individual Secondary Outcomes at 1 Year [ Time Frame: 1 year ]All cause mortality, vascular mortality, MI, nonfatal cardiac arrest, cardiac revascularization procedure, stroke, pulmonary emboli, deep venous thrombosis, amputation, peripheral arterial thrombosis, new diagnosis of cancer, diagnosis of recurrent cancer and rehospitalization for vascular reason.

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Ages Eligible for Study: | 45 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Are undergoing noncardiac surgery;
- Are ≥ 45 years of age;
- Are expected to require at least an overnight hospital admission after surgery; AND
-
Fulfill one or more of the following 5 criteria:
- History of coronary artery disease
- History of peripheral vascular disease
- History of stroke
- Undergoing major vascular surgery
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Any 3 of the following 9 criteria:
- undergoing major surgery (i.e. intraperitoneal, intrathoracic, retroperitoneal or major orthopedic surgery
- history of congestive heart failure
- transient ischemic attack
- diabetes and currently taking an oral hypoglycemic agent or insulin
- age ≥ 70 years
- hypertension
- serum creatinine > 175 µmol/L (> 2.0 mg/dL)
- history of smoking within 2 years of surgery
- undergoing urgent/emergent surgery
Exclusion Criteria:
- Consumption of ASA within 72 hours prior to surgery
- Hypersensitivity or known allergy to ASA or clonidine
- Systolic blood pressure < 105 mm Hg
- Heart rate < 55 beats per minute in a patient who does not have a permanent pacemaker
- Second or third degree heart block without a permanent pacemaker
- Active peptic ulcer disease or gastrointestinal bleeding within previous 6 weeks
- Intracranial hemorrhage documented by neuro-imaging, in the 6 months prior to randomization. This does not include petechial hemorrhagic transformation of a primary ischemic stroke
- Subarachnoid hemorrhage or epidural hematoma unless the event occurred more than 6 months prior to randomization and the offending aneurysm or arterial lesion has been repaired
- Drug-eluting coronary stent in the year prior to randomization
- Bare-metal coronary stent in the 6 weeks prior to randomization
- Thienopyridine (e.g., clopidogrel, ticlopidine, prasugrel) or ticagrelor within 72 hours prior to surgery; or intent to restart a thienopyridine or ticagrelor during the first 7 days post-op; or currently taking an alpha-2 agonist, alpha methyldopa, monoamine oxidase inhibitors or reserpine;
- Planned use - during the first 3 days after surgery - therapeutic dose anticoagulation or a therapeutic subcutaneous or intravenous antithrombotic agent
- Undergoing intracranial surgery, carotid endarterectomy, or retinal surgery
- Not consenting to participate in POISE-2 prior to surgery
- Previously enrolled in POISE-2 Trial

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01082874
United States, Ohio | |
National Coordination Office | |
Cleveland, Ohio, United States | |
Argentina | |
National Coordination Office | |
Rosario, Argentina | |
Australia, Victoria | |
National Coordination Office Australia and New Zealand | |
Parkville, Victoria, Australia | |
Austria | |
National Coordination Office | |
Vienna, Austria | |
Belgium | |
National Coordination Office | |
Brussels, Belgium | |
Brazil | |
National Coordination Office | |
Sao Paulo, Brazil | |
Canada, Ontario | |
National Coordination Office | |
Hamilton, Ontario, Canada | |
Chile | |
National Coordination Office | |
Santiago, Chile | |
Colombia | |
National Coordination Office | |
Bucamaranga, Colombia | |
Denmark | |
National Coordination Office | |
Herlev, Denmark | |
France | |
National Coordination Office | |
Boulogne-Billancourt, France | |
Germany | |
National Coordination Office | |
Bonn, Germany | |
Hong Kong | |
National Coordination Office | |
Hong Kong, Hong Kong | |
India | |
National Coordination Office | |
Bangalore, India | |
Italy | |
National Coordination Office | |
Milan, Italy | |
Malaysia | |
National Coordination Office | |
Kuala Lumpur, Malaysia | |
New Zealand | |
National Coordination Office | |
Auckland, New Zealand | |
Pakistan | |
National Coordination Office | |
Islamabad, Pakistan | |
Peru | |
National Coordination Office | |
Lima, Peru | |
South Africa | |
National Coordination Office | |
Durban, South Africa | |
Spain | |
National Coordination Office | |
Barcelona, Spain | |
Switzerland | |
National Coordination Office | |
Basel, Switzerland | |
United Kingdom | |
National Coordination Office | |
Hull, United Kingdom |
Principal Investigator: | P.J. Devereaux, MD, PhD | Population Health Research Institute | |
Study Chair: | Salim Yusuf, DPhil | Population Health Research Institute |
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | Hamilton Health Sciences Corporation |
ClinicalTrials.gov Identifier: | NCT01082874 |
Other Study ID Numbers: |
POISE-2 01MAR2010 2009-018173-31 ( EudraCT Number ) |
First Posted: | March 9, 2010 Key Record Dates |
Results First Posted: | August 25, 2016 |
Last Update Posted: | August 25, 2016 |
Last Verified: | July 2016 |
Randomized Controlled Trial Blinded Clonidine |
acetyl-salicylic acid (ASA) Perioperative vascular complications Noncardiac surgery |
Cardiovascular Diseases Clonidine Analgesics Sensory System Agents Peripheral Nervous System Agents Physiological Effects of Drugs Molecular Mechanisms of Pharmacological Action Antihypertensive Agents |
Sympatholytics Autonomic Agents Adrenergic alpha-2 Receptor Agonists Adrenergic alpha-Agonists Adrenergic Agonists Adrenergic Agents Neurotransmitter Agents |