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Completed

NCT Number: NCT01858311

Nutrition Blood Outcomes Following Tocotrienol N2B

A natural form of vitamin E called tocotrienol (TCT) has blood thinning and cholesterol lowering properties, both of which may benefit stroke survivors. This study is being conducted to determine the blood thinning and cholesterol lowering properties of TCT in stroke or TIA (transient ischemic attack, which is also referred to as a "mini-stroke") survivors that are receiving the standard treatment for prevention of recurrent stroke.

Study Hypothesis: Oral TCT decreases the incidence of aspirin and clopidogrel nonresponders, increases the extent of inhibition of platelet aggregation, and decreases LDL without significant side effects in stroke patients.

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Key information

Sex eligibility

All sexes

Study type

Observational

Primary location

Mount Carmel Health System, Columbus, Ohio, United States

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About this study

In this Phase IIB trial the goal is to determine the effects of orally supplemented TCT on platelet function and cholesterol as well as the safety in patients with TIA (transient ischemic attack) or stroke in addition to the standard treatment for stroke prevention. Recurrent cardiovascular events including stroke, TIA, heart attack, venous thrombosis, pulmonary embolism, systemic embolism will also be recorded. In patients with recurrent stroke, severity of the stroke and stroke size measured from MR (magnetic resonance) or CT (computed tomography) imaging will also be collected. We expect that TCT will inhibit blood clotting and lower cholesterol more than current standard treatment without significantly increasing bleeding risks or other side effects. Future work is planned in a larger TIA/stroke population to examine whether TCT adds to standard medical care in terms of decreasing incidence of stroke and improving outcomes following stroke.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Patients with either atherothrombotic, cardioembolic, cryptogenic stroke or TIA (transient ischemic attack) for whom anticoagulation is not indicated
  • Enrollment in trial must occur within 6 months of clinical presentation for first stroke or TIA event
  • No history of long-term vitamin E supplement (defined as daily oral tocopherol or tocotrienol supplementation at least 6mos; within the past 5 years)
  • No current vitamin E supplementation in multi-vitamin

Exclusion criteria

  • Disabling stroke ( Modified Rankin Scale > 3)
  • Prior intracranial hemorrhage (excluding traumatic)
  • High risk of bleeding (recurrent gastrointestinal, genitourinary bleeding, active peptic ulcer disease)
  • Anticipated requirement for long term use of anticoagulation
  • Contraindications to antiplatelet agents (bleeding disorder, thrombocytopenia, prolonged INR)
  • Irreversible medical condition likely to affect short-term survival or ability to participate in study such as cancer or other chronic disease with predicted survival of less than a year or severe psychiatric or neurologic disease that might complicate evaluation of study outcomes like dementia or schizophrenia
  • Pregnancy or women of child bearing age who are not following an effective method of contraception
  • Breast feeding
  • Unable or unwilling to provide informed
  • Unlikely to be compliant with therapy or unwilling to return for follow up frequent clinic visits
  • Concurrent participation in another study with an investigational drug or devise
  • Other likely specific cause of stroke such as dissection, infectious or noninfectious vasculitis, prothrombotic state

Treatment and study plan

Tocotrienol Capsules

Dietary Supplement

Vitamin E TCT capsules- 400mg to 800mg per day (2 in the morning and 2 in the evening)

Placebo Vehicle

Other

Placebo capsules per day (2 in the morning and 2 in the evening)

Primary outcomes

  1. platelet aggregation activity

    Time frame: up to 1 year

    Platelet aggregation activity will be measured using standard clinical laboratory procedures

Secondary outcomes

  1. Incidence of recurrent stroke

    Time frame: up to 1 year

    Incidence of recurrent stroke after previous diagnosed stroke or TIA.

Sponsors and collaborators

Lead sponsor

Ohio State University

Other

Collaborators

  • Malaysia Palm Oil Board

Registry information

Official study title

Human Blood Outcomes Following Tocotrienol Supplementation - Nutrition Phase IIB NUTRITION PHASE IIB

Acronym: NIIB

Important dates

Study start
2013
Primary completion
2018
Study completion
2018
First posted
May 21, 2013
Registry last updated
Sep 20, 2021

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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