Veliflapon (DG-031)to Prevent Heart Attacks or Stroke in Patients With a History of Heart Attack or Unstable Angina

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00353067
Recruitment Status : Suspended
First Posted : July 17, 2006
Last Update Posted : November 29, 2006
Henry Ford Health System
Duke University
Information provided by:
deCODE genetics

Brief Summary:
The purpose of this study is to determine if veliflapon (DG-031)can prevent a heart attack or stroke in African American patients with a history of unstable angina or myocardial infarction.

Condition or disease Intervention/treatment Phase
Acute Coronary Syndrome Drug: veliflapon (DG-031) Phase 3

Detailed Description:

Genetic linkage and association studies in Icelandic patients with a history of myocardial infarction and stroke showed common haplotypes in two genes, 5-lipoxygenase activating protein(FLAP)and Leukotriene A4 Hydrolase(LTA4H), that each conferred significant risk for MI and stroke. The FLAP haplotype had a RR of 1.8 for MI and 2.1 for those with MI and stroke. LTA4H haplotype had a RR of 1.1 for MI and 1.5 for MI and stroke.Both gene associations were replicated in European and US Caucasian groups and were independent of the conventional risk factors such as LDL-cholesterol, hypertension, and diabetes. The haplotype for the LTA4H pathway showed a modest relative risk of 1.2 in US Caucasian cohorts for all MI and 1.4 for MI and stroke. However, the LTA4H haplotype had a much higher relative risk of 3.5 for myocardial infarction in African-Americans (p=0.000022).

Self identified African American patients with acute coronary syndrome (ACS) were selected for this study as this population has the highest risk identified to date for developing an MI related to the HapK genetic variant in the leukotriene pathway. The study will be enriched to include African American patients randomized by an algorithm designed to assure that approximately 80% of the study population will be Hap K positive and 20% will not have the Hap K positive result.

All patients will be screened for eligibility based on the haplotype status. Patients will be randomized to either veliflapon or placebo on top of standard care. Patients are randomized within 5-30 days of their ACS event.

This is an events driven study with the time of the first occurrence of any of the following elements: hospitalization for UA or urgent revascularization, fatal/non-fatal MI, fatal/non-fatal stroke and CV related death comprising the primary endpoint. The primary null hypothesis of efficacy is that time to first CV event among African American patients with a positive LTA4H HapK Variant assay test is no different from placebo when either is given in addition to standard of care therapy. A total of 3450 eligible patients will be randomized in this study.

The treatment duration for patients enrolled in the study will be a target of at least 6 months (based on approximate time of last patient enrolled) and up to 36 months (from first patient enrolled). All cardiac clinical events endpoints will be adjudicated by an independent Clinical Endpoint Committee (CEC).

Study Type : Interventional  (Clinical Trial)
Enrollment : 3450 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double
Primary Purpose: Prevention
Official Title: A Randomized, Double-Blind, Placebo-Controlled Study to Examine the Safety and Efficacy of Veliflapon (DG-031) in Reducing the Risk of Acute Cardiovascular Events in African American Patients With Coronary Artery Disease(The LTCAD Study).
Study Start Date : May 2006

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Angina

Primary Outcome Measures :
  1. Time to first occurrence of a composite endpoint including:hospitalization for unstable angina or urgent revascularization; fatal/non-fatal MI; fatal/non-fatal stroke or CV related death

Secondary Outcome Measures :
  1. Time to first occurrence of each of the following: an acute CV event (one of the composite CV events) among ALL randomized patients; MI, fatal and non-fatal
  2. Stroke, fatal and non-fatal; CV related death and all cause mortality.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Ages Eligible for Study:   35 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Men and women
  • 35 years of age or older
  • African American by self-report.
  • A history of either acute MI or admission for unstable angina (UA)within 30 days of randomization
  • Women who have undergone surgical sterilization (hysterectomy or bilateral tubal ligation or bilateral oophorectomy)or are > 2 years post-menopausal by medical history are also eligible.
  • Women of childbearing potential must have a negative urine pregnancy test and are required to use 2 barrier methods of contraception throughout the study.
  • Patients are capable of understanding study procedures and agree to participate in the study including scheduled follow up visits and consent to genetic haplotype testing.

Exclusion Criteria:

  • Presence of active, symptomatic HF defined by presence of New York Heart Association Class II-IV at time of screening.
  • Received any treatment with an investigational agent or device within 4 weeks.
  • Evidence of secondary angina or ischemia
  • Underlying cardiac disorders that may cause cardiac ischemia including aortic stenosis or hypertrophic cardiomyopathy.
  • Presence of active hepatic disease or AST and/or ALT > 3.0 × ULN.
  • Calculated creatinine clearance < 30 ml/minute OR the presence of chronic and severe renal insufficiency.
  • Major surgery performed within six weeks prior to scheduled day of randomization.
  • Any other major intercurrent illness and other condition, which, in the opinion of the Investigator, will interfere with the patient’s participation in the study or leads to a survival prognosis of < 5 years.
  • A history of additional risk factors for Torsades de Pointe (TdP)
  • Patients who are not willing to return for follow up visits or with a known history of non-compliance.
  • Patients who consume > 3 alcoholic drinks/day or > 15 drinks/week, or have a history of alcohol abuse within the past 2 years.
  • History of active drug abuse within 1 year of screening for the study.
  • Pregnant or lactating women.
  • Poor mental function or any other reason that may cause difficulty in complying with the requirements of the study.

Information from the National Library of Medicine

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 identifier (NCT number): NCT00353067

United States, Alabama
Montgomery, Alabama, United States, 36106
United States, Florida
Jacksonville, Florida, United States, 32216
United States, Illinois
Melrose Park, Illinois, United States, 60160
United States, Oklahoma
Oklahoma City, Oklahoma, United States, 73103
United States, Pennsylvania
Philadelphia, Pennsylvania, United States, 19142
United States, Tennessee
Nashville, Tennessee, United States, 37203
United States, Texas
Carrollton, Texas, United States, 75007
Fort Worth, Texas, United States, 76104
Richardson, Texas, United States, 75080
United States, Virginia
Hopewell, Virginia, United States, 23860
Suffolk, Virginia, United States, 23434
Sponsors and Collaborators
deCODE genetics
Henry Ford Health System
Duke University
Principal Investigator: Douglas W Weaver, M.D. Henry Ford Hospital
Principal Investigator: Christopher Granger, M.D. Duke University Identifier: NCT00353067     History of Changes
Other Study ID Numbers: DG-031-CV-301
First Posted: July 17, 2006    Key Record Dates
Last Update Posted: November 29, 2006
Last Verified: November 2006

Keywords provided by deCODE genetics:
unstable angina
myocardial infarction
coronary thrombosis
coronary atherosclerosis

Additional relevant MeSH terms:
Acute Coronary Syndrome
Heart Diseases
Cardiovascular Diseases
Vascular Diseases
Nervous System Diseases
Angina, Unstable
Myocardial Ischemia
Angina Pectoris
Chest Pain
Neurologic Manifestations
Signs and Symptoms
2-(4-(quinolin-2-yl-methoxy)phenyl)-2-cyclopentylacetic acid
Anti-Inflammatory Agents, Non-Steroidal
Analgesics, Non-Narcotic
Sensory System Agents
Peripheral Nervous System Agents
Physiological Effects of Drugs
Anti-Inflammatory Agents
Antirheumatic Agents
Lipoxygenase Inhibitors
Enzyme Inhibitors
Molecular Mechanisms of Pharmacological Action