MedPath

Insulin Resistance Intervention After Stroke Trial

Phase 3
Completed
Conditions
Stroke
Myocardial Infarction
Diabetes
Interventions
Drug: placebo
Registration Number
NCT00091949
Lead Sponsor
Yale University
Brief Summary

The purpose of this study is to determine if pioglitazone is effective in preventing future strokes or heart attacks among non-diabetic persons who have had a recent ischemic stroke.

Detailed Description

Among patients throughout the world who experience a transient ischemic attack (TIA)or ischemic stroke, subsequent stroke and heart attack are major causes of death and disability. Within 4 years of the initial TIA or ischemic stroke, 16 percent of patients will have a recurrent stroke and 9 percent will have a heart attack. Prevention of further vascular events, therefore, is critically important to the health of patients with stroke.

The IRIS trial will test a new treatment strategy based on evidence linking insulin resistance to increased risk for stroke and other vascular diseases. Insulin resistance is a condition in which insulin, a normal human hormone, does not work effectively because the body is resistant to its effects. This condition can lead to diabetes and is thought to cause blood vessel disease, including stroke and heart attack, in patients with and without diabetes.

Insulin resistance affects up to 50% of stroke patients and is effectively modified with thiazolidinedione (TZD) drugs used to treat type 2 diabetes. In addition to reducing insulin resistance, these drugs have other favorable effects on blood vessels, reduce blood vessel inflammation, and potentially prevent atherosclerosis. Currently marketed TZDs include rosiglitazone and pioglitazone.

The IRIS is a clinical trial that will enroll 3936 subjects at approximately 170 hospitals in Australia, Canada, Germany, Israel, Italy, the United Kingdom (UK) and the US. After an initial screening blood test, each participant will be randomly assigned to take either pioglitazone or placebo tablets. Recruitment will be completed during 2005-2012, and all participants will be followed for a minimum of 3 years.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
3876
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Placeboplaceboinactive substance
Pioglitazonepioglitazonepioglitazone
Primary Outcome Measures
NameTimeMethod
Recurrent Fatal or Non-fatal Stroke, or Fatal or Non-fatal Myocardial InfarctionUp to 5 years
Secondary Outcome Measures
NameTimeMethod
Fatal or Non-fatal Stroke Alone5 years
Development of Overt Diabetes5 years
All Cause Mortality5 years
Composite Outcome of Fatal or Non-fatal Stroke, Fatal or Non-fatal MI or Episode of Serious Congestive Heart Failure5 years
Acute Coronary Syndrome5 years

Fatal or non-fatal acute myocardial infarction or unstable angina

Decline in Cognitive StatusAnnual measures from baseline to exit (up to 5 years)

Change in modified mental status examination (3MS) score from baseline to exit. Theoretical range of 3MS scores is 0-100. Baseline scores ranged from 22-100.

Trial Locations

Locations (180)

Ohio State University

🇺🇸

Columbus, Ohio, United States

University of South Alabama

🇺🇸

Mobile, Alabama, United States

Shanti Clinical Trials (NINDS-CRC site)

🇺🇸

Colton, California, United States

Stanford University

🇺🇸

Palo Alto, California, United States

Michigan State University

🇺🇸

East Lansing, Michigan, United States

UCSF-Fresno

🇺🇸

Fresno, California, United States

Allegheny Singer Research Institute

🇺🇸

Pittsburgh, Pennsylvania, United States

Albany Medical Center

🇺🇸

Albany, New York, United States

SUNY Downstate

🇺🇸

Brooklyn, New York, United States

Hattiesburg Clinic (NINDS-CRC site)

🇺🇸

Hattiesburg, Mississippi, United States

University of Alberta

🇨🇦

Edmonton, Alberta, Canada

Cleveland Clinic Foundation

🇺🇸

Cleveland, Ohio, United States

Cooper University Hospital

🇺🇸

Camden, New Jersey, United States

University Duesseldorf/Heinrich-Heine University

🇩🇪

Duesseldorf, Germany

Vancouver Island Health Research Centre

🇨🇦

Victoria, British Columbia, Canada

CHUM-Centre de recherche, Hôpital Notre-Dame

🇨🇦

Montreal, Canada

Ernst-Moritz-Arndt-University Greifswald

🇩🇪

Griefswald, Germany

SUNY Buffalo

🇺🇸

Buffalo, New York, United States

Burke Medical Research Institute

🇺🇸

White Plains, New York, United States

New York Methodist Hospital

🇺🇸

Brooklyn, New York, United States

Washington University

🇺🇸

Saint Louis, Missouri, United States

Intermountain Research Consultants

🇨🇦

Thunder Bay, Ontario, Canada

Wolfson Medical Center

🇮🇱

Holon, Israel

Alfried Krupp Hospital

🇩🇪

Essen, Germany

Freiburg University

🇩🇪

Freiburg, Germany

University Hospital Frankfurt

🇩🇪

Frankfurt, Germany

Royal Perth

🇦🇺

Perth, Western Australia, Australia

Hôpital Charles LeMoyne

🇨🇦

Greenfield Park, Quebec, Canada

McGill-Montreal General

🇨🇦

Montreal, Quebec, Canada

Neurologische Klinik

🇩🇪

Bad Neustadt, Germany

Royal Melbourne Hospital

🇦🇺

Parkville, Victoria, Australia

Penn Stat-Hershey Medical Center (NINDS-CRC site)

🇺🇸

Hershey, Pennsylvania, United States

Box Hill Hospital (Eastern Health)

🇦🇺

Box Hill, Victoria, Australia

McGill-Jewish General

🇨🇦

Montreal, Quebec, Canada

Soroka Medical Center

🇮🇱

Beer Sheva, Israel

University Heidelberg

🇩🇪

Heidelberg, Germany

University Hospital Mainz

🇩🇪

Mainz, Germany

University of Ulm

🇩🇪

Ulm, Germany

Newcastle upon Tyne

🇬🇧

Newcastle upon Tyne, United Kingdom

University of Rome (S. Andrea Hospital)

🇮🇹

Roma, Italy

Queen Elizabeth Hospital Gateshead

🇬🇧

Gateshead, Tyne And Wear, United Kingdom

Luton and Dubstable Hospital

🇬🇧

Luton, United Kingdom

University of Perugia

🇮🇹

Perugia, Italy

Sacred Heart Catholic University

🇮🇹

Rome, Italy

Monklands Hospital

🇬🇧

Airdrie, United Kingdom

Kings College London

🇬🇧

London, United Kingdom

University of Puerto Rico

🇵🇷

San Juan, Puerto Rico

University of Rome La Sapienza

🇮🇹

Rome, Italy

Royal United Hospital

🇬🇧

Bath, United Kingdom

Calderdale Royal Hospital

🇬🇧

Halifax, United Kingdom

Addenbrookes Foundation NHS Trust (Cambridge)

🇬🇧

Cambridge, United Kingdom

Royal Devon and Exeter

🇬🇧

Exeter, United Kingdom

Cook County (Stroger) Hospital

🇺🇸

Chicago, Illinois, United States

Metrohealth Medical Center

🇺🇸

Cleveland, Ohio, United States

Rush University

🇺🇸

Chicago, Illinois, United States

Massachusetts General Hospital

🇺🇸

Boston, Massachusetts, United States

Boston University

🇺🇸

Boston, Massachusetts, United States

Caritas St. Elizabeth's Medical Center

🇺🇸

Boston, Massachusetts, United States

Beth Israel Deaconess

🇺🇸

Boston, Massachusetts, United States

Johns Hopkins

🇺🇸

Baltimore, Maryland, United States

Queen Elizabeth The Queen Mother Hospital

🇬🇧

Margate, Kent, United Kingdom

National Rehabilitation Hospital

🇺🇸

Washington, District of Columbia, United States

Abington Memorial Hospital

🇺🇸

Abington, Pennsylvania, United States

University of Southern California

🇺🇸

Los Angeles, California, United States

University of California

🇺🇸

San Francisco, California, United States

Henry Ford Hospital

🇺🇸

Detroit, Michigan, United States

Vanderbilt

🇺🇸

Nashville, Tennessee, United States

University of Texas

🇺🇸

San Antonio, Texas, United States

University of Utah

🇺🇸

Salt Lake City, Utah, United States

University of Arizona

🇺🇸

Tucson, Arizona, United States

University of Pittsburgh

🇺🇸

Pittsburgh, Pennsylvania, United States

University of New Mexico

🇺🇸

Albuquerque, New Mexico, United States

Sheba Medical Center

🇮🇱

Ramat Gan, Israel

University of Florida

🇺🇸

Jacksonville, Florida, United States

Sinai Hospital of Baltimore

🇺🇸

Baltimore, Maryland, United States

University of Tennessee

🇺🇸

Memphis, Tennessee, United States

Billings Clinic

🇺🇸

Billings, Montana, United States

University of Cincinnati

🇺🇸

Cincinnati, Ohio, United States

Stobhill Hospital

🇬🇧

Glasgow, Scotland, United Kingdom

Wansbeck General Hospital

🇬🇧

Ashington, Northumberland, United Kingdom

Glasgow Royal Infirmary

🇬🇧

Glasgow, Scotland, United Kingdom

Southern General Hospital

🇬🇧

Glasgow, Scotland, United Kingdom

Center for Neurologic Research

🇨🇦

Lethbridge, Alberta, Canada

Royal Surrey County Hospital

🇬🇧

Guildford, United Kingdom

St. Michael's Hospital

🇨🇦

Toronto, Ontario, Canada

Saint Georges University of London

🇬🇧

London, United Kingdom

North Tyneside General Hospital

🇬🇧

Tyne And Wear, United Kingdom

James Cook University Hospital

🇬🇧

Middlesbrough, United Kingdom

St. Vincent's Hospital Manhattan

🇺🇸

New York, New York, United States

University of Rochester

🇺🇸

Rochester, New York, United States

Cornell University

🇺🇸

New York, New York, United States

Southtowns Neurology of WNY (NINDS-CRC site)

🇺🇸

West Seneca, New York, United States

Case Western Reserve University

🇺🇸

Cleveland, Ohio, United States

Louisiana State University Health Sciences Center

🇺🇸

Shreveport, Louisiana, United States

University of Toledo

🇺🇸

Toledo, Ohio, United States

Dartmouth Hitchcock Medical Center

🇺🇸

Lebanon, New Hampshire, United States

Friedrich Schiller-University Jena

🇩🇪

Jena, Germany

B'nai Zion Medical Center

🇮🇱

Haifa, Israel

Torbay Hospital (South Devon Healthcare NHS Foundation Trust)

🇬🇧

Torquay, United Kingdom

Marshfield Clinic

🇺🇸

Marshfield, Wisconsin, United States

Robarts Research Institute

🇨🇦

London, Ontario, Canada

University Hospital-Dresden

🇩🇪

Dresden, Germany

Scripps Clinic

🇺🇸

La Jolla, California, United States

Yale University

🇺🇸

New Haven, Connecticut, United States

MIMA Century Research Associates

🇺🇸

Melbourne, Florida, United States

Hartford

🇺🇸

Hartford, Connecticut, United States

Pines Neurological Associates (NINDS-CRC site)

🇺🇸

Pembroke Pines, Florida, United States

University of Illinois

🇺🇸

Chicago, Illinois, United States

Loyola University Medical Center

🇺🇸

Maywood, Illinois, United States

Ingalls Memorial Hospital (NINDS-CRC site)

🇺🇸

Harvey, Illinois, United States

Tri-City Neruology (NINDS-CRC site)

🇺🇸

Saint Charles, Illinois, United States

Iowa Health Des Moines Clinical Trials Office

🇺🇸

Des Moines, Iowa, United States

OSF St. Francis Medical Center

🇺🇸

Peoria, Illinois, United States

Indiana Medical Research

🇺🇸

Elkhart, Indiana, United States

Associates In Neurology (NINDS-CRC site)

🇺🇸

Valparaiso, Indiana, United States

Via Christi Regional Medical Center

🇺🇸

Wichita, Kansas, United States

Ruan Neuroscience Center/Mercy Medical Center

🇺🇸

Des Moines, Iowa, United States

University of Kentucky Research Foundation

🇺🇸

Lexington, Kentucky, United States

Northeast Iowa Medical Education Foundation (NINDS-CRC site)

🇺🇸

Waterloo, Iowa, United States

University of Iowa

🇺🇸

Iowa City, Iowa, United States

Penobscot Bay Neurology

🇺🇸

Rockport, Maine, United States

Minneapolis Clinic of Neurology

🇺🇸

Robbinsdale, Minnesota, United States

St. Luke's Brain and Stroke Institute

🇺🇸

Kansas City, Missouri, United States

St. John's Mercy Medical Center

🇺🇸

Saint Louis, Missouri, United States

St. Louis University

🇺🇸

Saint Louis, Missouri, United States

Advanced Neurology Specialists

🇺🇸

Great Falls, Montana, United States

Kessler Medical Rehab Research Corp

🇺🇸

West Orange, New Jersey, United States

Altru Health System

🇺🇸

Grand Forks, North Dakota, United States

Temple University

🇺🇸

Philadelphia, Pennsylvania, United States

Lankenau Institute for Medical Research

🇺🇸

Bryn Mawr, Pennsylvania, United States

Baylor Research Institute

🇺🇸

Dallas, Texas, United States

Methodist Neurological Institute

🇺🇸

Houston, Texas, United States

University of Vermont

🇺🇸

Burlington, Vermont, United States

University of Virginia

🇺🇸

Charlottesville, Virginia, United States

University of Texas, Southwestern

🇺🇸

Dallas, Texas, United States

Royal Prince Alfred

🇦🇺

Camperstown, New South Wales, Australia

Flinders Medical Centre

🇦🇺

Bedford Park, New South Wales, Australia

University of Wisconsin

🇺🇸

Madison, Wisconsin, United States

Sentara Medical Group

🇺🇸

Norfolk, Virginia, United States

John Hunter Hospital (University of Newcastle)

🇦🇺

New Lambton Heights, New South Wales, Australia

Western Hospital (University of Melbourne)

🇦🇺

Footscray, Victoria, Australia

Austin Health (National Stroke Research Institute)

🇦🇺

Heidelberg Heights, Victoria, Australia

Ottawa Hospital-General Campus

🇨🇦

Ottawa, Ontario, Canada

Klinikum Altenburger Land

🇩🇪

Altenburg, Germany

Centre Hospitalier Affilie Universitaire de Quebec

🇨🇦

Quebec City, Quebec, Canada

Martin-Luther-Universitaet Halle-Wittenberg

🇩🇪

Halle, Germany

University of Erlangen

🇩🇪

Erlangen, Germany

University Medical Center Hamburg-Eppendorf

🇩🇪

Hamburg, Germany

Klinikum der Universitat Muenchen

🇩🇪

Munich, Germany

University Hospital Muenster

🇩🇪

Muenster, Germany

Bnai-Zion Medical Center

🇮🇱

Haifa, Israel

Rambam Medical Center

🇮🇱

Haifa, Israel

Rabin Medical Center-Golda Campus

🇮🇱

Petach Tikva, Israel

Tel Aviv Medical Center

🇮🇱

Tel Aviv, Israel

IRCCS FONdazione Istituto Neurologico C. Mondino

🇮🇹

Pavia, Italy

University of Laquila

🇮🇹

Laquila, Italy

University Vita Salute San Raffaele

🇮🇹

Milan, Italy

Genoa University Hospital

🇮🇹

Genoa, Italy

Jazzolino Hospital

🇮🇹

Vibo Valentia, Italy

Royal Bournemouth

🇬🇧

Bournemouth, Dorset, United Kingdom

Blackpool Victoria Hospital

🇬🇧

Blackpool, Lancashire, United Kingdom

Aberdeen Royal Infirmary

🇬🇧

Aberdeen, United Kingdom

William Harvey Hospital

🇬🇧

Ashford, United Kingdom

Countess of Chester Foundation Trust

🇬🇧

Cheshire, United Kingdom

Southend University Hospital

🇬🇧

Essex, United Kingdom

Dewsbury District Hospital

🇬🇧

Dewsbury, United Kingdom

Devon PCT

🇬🇧

Exeter, United Kingdom

University Hospital Aintree

🇬🇧

Liverpool, United Kingdom

The Royal Liverpool and Broadgreen University Hospitals

🇬🇧

Liverpool, United Kingdom

University of Alabama

🇺🇸

Birmingham, Alabama, United States

University of California-Davis

🇺🇸

Sacramento, California, United States

Denver Health and Hospital Authority

🇺🇸

Denver, Colorado, United States

Floria Neurovascular Institute

🇺🇸

Tampa, Florida, United States

University of Nebraska

🇺🇸

Omaha, Nebraska, United States

Clinical Research of Winston-Salem

🇺🇸

Winston-Salem, North Carolina, United States

Guilford Neurologic Associates

🇺🇸

Winston-Salem, North Carolina, United States

Oregon Health & Science University

🇺🇸

Portland, Oregon, United States

Medical College of Wisconsin

🇺🇸

Milwaukee, Wisconsin, United States

Thomas Jefferson University

🇺🇸

Philadelphia, Pennsylvania, United States

Rhode Island Hospital

🇺🇸

Providence, Rhode Island, United States

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