Low Dose ColchicinE in pAtients With Peripheral Artery DiseasE to Address Residual Vascular Risk

NCT ID: NCT04774159

Last Updated: 2026-01-16

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE3

Total Enrollment

6150 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-05-06

Study Completion Date

2029-12-31

Brief Summary

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The Low dose ColchicinE in pAtients with peripheral Artery DiseasE to address residual vascular Risk (LEADER-PAD) trial will evaluate if anti-inflammatory therapy with colchicine will reduce vascular events in patients with symptomatic peripheral artery disease.

Detailed Description

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The LEADER-PAD trial is a randomized, double blind, multicenter trial with an active run-in period, comparing low dose colchicine 0.5 mg daily with placebo in patients with symptomatic peripheral artery disease (PAD) to prevent vascular events (myocardial infarction, stroke, cardiovascular deaths, acute limb ischemia and vascular amputation). The sample size for the trial is 6,150 participants. The primary outcome for the trial is major adverse cardiovascular and limb events (MACE and MALE). This composite outcome consists of cardiovascular death, myocardial infarction, stroke and severe limb ischemia that requires a vascular intervention (i.e., pharmacological reperfusion, endovascular or surgical revascularization) or a major vascular amputation (defined as ankle/transtibial amputation or higher).

Conditions

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Peripheral Arterial Disease Atherosclerosis of Extremities Inflammation

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors
Double blind and use of similarly active and placebo tablets.

Study Groups

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Colchicine

Colchicine 0.5mg daily for the duration of the trial

Group Type ACTIVE_COMPARATOR

Colchicine 0.5 MG Oral Tablet

Intervention Type DRUG

Colchicine 0.5 mg tablet daily

Active drug and placebo are of the same appearance and are indistinguishable. All investigators, study personnel and patients will be blinded to drug treatment assignment. Trial treatment supplies must be stored in a secure, limited-access location under the storage conditions specified on the IP supply label.

Colchicine-Placebo

Colchicine-Placebo daily

Group Type PLACEBO_COMPARATOR

Colchicine-Placebo

Intervention Type DRUG

Colchicine-Placebo tablet

Interventions

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Colchicine 0.5 MG Oral Tablet

Colchicine 0.5 mg tablet daily

Active drug and placebo are of the same appearance and are indistinguishable. All investigators, study personnel and patients will be blinded to drug treatment assignment. Trial treatment supplies must be stored in a secure, limited-access location under the storage conditions specified on the IP supply label.

Intervention Type DRUG

Colchicine-Placebo

Colchicine-Placebo tablet

Intervention Type DRUG

Other Intervention Names

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Colchicine Colchicine-Placebo tablet

Eligibility Criteria

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Inclusion Criteria

1. Age \> 18 years
2. Symptomatic atherosclerotic LE PAD fulfilling at least one of the following:

a. Intermittent claudication with ankle/arm blood pressure ratio\* (ABI ≤ 0.90) or artery stenosis ≥ 50% plus one of i. \>1 vascular bed affected by atherosclerosis ii. Diabetes iii. Heart failure iv. Chronic kidney disease (eGFR \< 60 mL/min/1.73 m2)

b. Rest pain (mostly in foot) OR necrosis of limb OR gangrene of limb (corresponding to either Fontaine stages 3 or 4 OR Rutherford Classification categories 4 to 6). All must have an ankle/arm blood pressure ratio\* (ABI ≤ 0.90) OR artery stenosis ≥ 50%.

\* In cases of incompressible ankle arteries, the presence of toe pressure ≤ 60 mm Hg or toe-brachial index ≤ 0.70 is acceptable

c. Revascularization defined as limb bypass surgery or endovascular revascularization procedures (irrespective of the specific device used), including percutaneous transluminal angioplasty/stent of iliac or infra-inguinal arteries or extra-anatomical bypass surgery

d. Leg or foot amputation for arterial vascular indications
3. Written or verbal informed consent from the patient

Exclusion Criteria

1. Contraindication to colchicine
2. Long term requirement for colchicine for another clinical indication
3. Active diarrhoea
4. eGFR \< 30 mL/min/1.73 m2
5. Cirrhosis or severe chronic liver disease
6. Woman who is pregnant, or breast-feeding or of child-bearing potential not protected by reliable contraception or is planning conception during the study
7. Current or planned long term use of cyclosporine, verapamil, HIV protease inhibitors, azole antifungals, or macrolide antibiotics (with the exception of azithromycin)
8. Patients who are deemed unlikely to return for follow-up
9. Patients with life expectancy \< 1 year
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Population Health Research Institute

OTHER

Sponsor Role lead

Responsible Party

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Noel Chan

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Noel C Chan, MD

Role: PRINCIPAL_INVESTIGATOR

Population Health Research Institute, Hamilton, Ontario, Canada

Locations

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Yale School of Medicine

New Haven, Connecticut, United States

Site Status RECRUITING

University of Florida - Gainesville

Gainesville, Florida, United States

Site Status RECRUITING

Tampa General Hospital

Tampa, Florida, United States

Site Status RECRUITING

University of Chicago Medical Center

Chicago, Illinois, United States

Site Status RECRUITING

Henry Ford Health System

Detroit, Michigan, United States

Site Status RECRUITING

Rutgers University

Newark, New Jersey, United States

Site Status RECRUITING

University of North Carolina at Chapel Hill

Chapel Hill, North Carolina, United States

Site Status RECRUITING

Duke Regional Hospital

Durham, North Carolina, United States

Site Status RECRUITING

Duke University Medical Center

Durham, North Carolina, United States

Site Status RECRUITING

Duke Raleigh Hospital

Raleigh, North Carolina, United States

Site Status RECRUITING

Ohio State University Wexner Medical Center

Columbus, Ohio, United States

Site Status RECRUITING

Vanderbilt University Medical Center

Nashville, Tennessee, United States

Site Status RECRUITING

Southwest Family Medicine

Dallas, Texas, United States

Site Status RECRUITING

University of Texas Southwestern Medical Center

Dallas, Texas, United States

Site Status RECRUITING

Texas Tech University Health Sciences

Lubbock, Texas, United States

Site Status RECRUITING

University of Washington Medical Center

Seattle, Washington, United States

Site Status RECRUITING

Medical College of Wisconsin

Milwaukee, Wisconsin, United States

Site Status RECRUITING

Universitair Ziekenhuis Leuven

Leuven, , Belgium

Site Status RECRUITING

Clínica Procárdio

Blumenau, Santa Catarina, Brazil

Site Status RECRUITING

Sociedade Hospitalar Angelina Caron

Campina Grande do Sul, , Brazil

Site Status RECRUITING

Hospital Universitário (CoraCentro Pesquisa Clinica)

Canoas, , Brazil

Site Status RECRUITING

Incore

Dois Vizinhos, , Brazil

Site Status RECRUITING

Via Medica

Goiânia, , Brazil

Site Status RECRUITING

Hospital Carlos Fernando Malzoni

Matão, , Brazil

Site Status RECRUITING

Santa Casa de Misericórdia de Ponta Grossa

Ponta Grossa, , Brazil

Site Status RECRUITING

Instituto de Cardiologia do Rio Grande do Sul

Porto Alegre, , Brazil

Site Status RECRUITING

CPTEM - Centro de Pesquisa e Tecnologia Multidisciplinar

São Paulo, , Brazil

Site Status RECRUITING

Hospital Alemão Oswaldo Cruz

São Paulo, , Brazil

Site Status RECRUITING

University of Calgary, Peter Lougheed Centre Vascular Clinic

Calgary, Alberta, Canada

Site Status RECRUITING

University of Alberta, Mazankowski Heart Institute

Edmonton, Alberta, Canada

Site Status RECRUITING

Hamilton General Hospital

Hamilton, Ontario, Canada

Site Status RECRUITING

London Health Sciences Centre

London, Ontario, Canada

Site Status RECRUITING

Vascular Health Bronte

Oakville, Ontario, Canada

Site Status RECRUITING

Corcare Cardiovascular Research Inc.

Scarborough Village, Ontario, Canada

Site Status RECRUITING

Niagara Health System

St. Catharines, Ontario, Canada

Site Status RECRUITING

Sunnybrook Research Institute

Toronto, Ontario, Canada

Site Status RECRUITING

Toronto General Hospital

Toronto, Ontario, Canada

Site Status RECRUITING

CIUSSS du Nord-de-l'île-de-Montréal, Hôpital du Sacré-Cœur-de-Montréal

Montreal, Quebec, Canada

Site Status RECRUITING

Centre intégré de santé et de services sociaux du Bas-Saint-Laurent

Rimouski, Quebec, Canada

Site Status RECRUITING

Cardiolife

Quito, Pichincha, Ecuador

Site Status RECRUITING

Hospital de Especialidades de las Fuerzas Armadas N 1

Quito, Pichincha, Ecuador

Site Status RECRUITING

UniCarMeDr.D

Quito, Pichincha, Ecuador

Site Status RECRUITING

University Medical Center Utrecht

Utrecht, , Netherlands

Site Status RECRUITING

University Hospital Basel, Angiology

Basel, , Switzerland

Site Status RECRUITING

Ospedale Regionale Bellinzona e Valli - Ente Ospedaliero Cantonale

Bellinzona, , Switzerland

Site Status RECRUITING

HFR Fribourg

Fribourg, , Switzerland

Site Status RECRUITING

Hôpitaux Universitaires de Genève

Geneva, , Switzerland

Site Status RECRUITING

University Hospital Zurich, Clinic of Angiology

Zurich, , Switzerland

Site Status RECRUITING

Royal Sussex County Hospital

Brighton, England, United Kingdom

Site Status RECRUITING

Southmead Hospital

Bristol, England, United Kingdom

Site Status RECRUITING

Kent and Canterbury Hospital

Canterbury, England, United Kingdom

Site Status RECRUITING

Derriford Hospital

Plymouth, England, United Kingdom

Site Status RECRUITING

Pinderfields Hospital

Wakefield, England, United Kingdom

Site Status RECRUITING

Royal Infirmary Edinburgh

Edinburgh, Scotland, United Kingdom

Site Status RECRUITING

Bradford Teaching Hospital

Bradford, , United Kingdom

Site Status RECRUITING

Hull Royal Infirmary

Hull, , United Kingdom

Site Status RECRUITING

The Leeds Teaching Hospital

Leeds, , United Kingdom

Site Status RECRUITING

Glenfield Hospital

Leicester, , United Kingdom

Site Status RECRUITING

St. George's University Hospitals

London, , United Kingdom

Site Status RECRUITING

Countries

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United States Belgium Brazil Canada Ecuador Netherlands Switzerland United Kingdom

Central Contacts

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Noel C Chan, MD

Role: CONTACT

905-521-2100 ext. 40727

Jessica Tyrwhitt

Role: CONTACT

Facility Contacts

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Carlos Mena-Hurtado

Role: primary

Samir Shah

Role: primary

Sashi Inkollu

Role: primary

Trissa Babrowski

Role: primary

Tamer Boules

Role: primary

Karim Salem

Role: primary

Katharine McGinigle

Role: primary

Jennifer Rymer

Role: primary

Jennifer Rymer

Role: primary

Jennifer Rymer

Role: primary

Jake Hemingway

Role: primary

Aaron Aday

Role: primary

Chrisette Dharma

Role: primary

Josh Beckman

Role: primary

Debarata Mukherjee

Role: primary

Jake Hemingway

Role: primary

Mitchell Dyer

Role: primary

Kristine Vanheule

Role: primary

Elizabeth Zimmermann

Role: primary

Eliane Sehnem

Role: primary

Andressa Baumbach

Role: primary

Bruna Dotto

Role: primary

Lohana Queiroz

Role: primary

Lucileni Borin

Role: primary

Milena Goulart

Role: primary

Bruna Machado

Role: primary

Valeria Almeida

Role: primary

Nathalia Lys Trindade Santos

Role: primary

Emi Sanders

Role: primary

Suzanne Welsh

Role: primary

Michelle Zondag

Role: primary

905-527-4322 ext. 40430

Teresa Novick

Role: primary

Christina Machon

Role: primary

Bev Bozek

Role: primary

Kelsey Charlebois

Role: primary

Leslie Summers deLuca

Role: primary

Naomi Eisenberg

Role: primary

Guylaine Marcotte

Role: primary

Isabelle Gagnon

Role: primary

Mayra Sanchez Velez

Role: primary

Jose Patricio Lopez Villalba

Role: primary

Yan Carlos Duarte Vera

Role: primary

Martin Teraa

Role: primary

Ines Meurer

Role: primary

Rosario del Giorno

Role: primary

Sandrine Foucras

Role: primary

Nadège Koffi

Role: primary

Rebecca Spescha

Role: primary

Eliane Probst

Role: backup

Abigail Whyte

Role: primary

Seeve Suppiah

Role: primary

Vivian Edobhiye

Role: primary

Lisa Shainberg

Role: primary

Martin Sylvester

Role: primary

Rachael Forsythe

Role: primary

Kevin Mercer

Role: primary

Ian Chetter

Role: primary

Marc Bailey

Role: primary

Badri Vijaynagar

Role: primary

Paul Moxey

Role: primary

Other Identifiers

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LEADER-PAD

Identifier Type: -

Identifier Source: org_study_id

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