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A Randomized, Placebo-Controlled, Double-Blind, Crossover Study to Evaluate the Effects of Three Doses of the Dietary Supplement oréVida™ on Alertness, Attention and Concentration in Healthy Men and Women

2011年6月8日 更新者:DSM Nutritional Products, Inc.

The purpose of this study is to investigate the effects of the dietary supplement oréVida™ (active ingredient on the basis of a culinary herb)administered twice daily in an acute study on an improvement in vigilance, attention, concentration, memory and mood in 45 healthy men and pre-menopausal women, aged 35-50 years, inclusive.

oréVida™ is considered a dietary supplement, and therefore it is not an approved drug by the Food and Drug Administration (FDA). It is regulated like a food. The U.S. Food and Drug Administration does not strictly regulate herbs and dietary supplements. We do not claim that this supplement is meant to treat any ailment.

調査の概要

研究の種類

介入

入学 (実際)

44

段階

  • フェーズ 1

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究場所

    • Illinois
      • Addison、Illinois、アメリカ、60101
        • Provident Clinical Research

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

35年~50年 (大人)

健康ボランティアの受け入れ

はい

受講資格のある性別

全て

説明

Inclusion Criteria:

  • Subject is a male or pre-menopausal female, 35-50 years, inclusive. Post-menopausal is defined as a history of spontaneous amenorrhea for a period of 12 consecutive months or six weeks post-surgical bilateral oophorectomy, with or without hysterectomy.
  • Subject is willing to maintain his or her habitual diet and usual physical activity patterns throughout the study.
  • Subject has no health conditions that would prevent him/her from fulfilling the study requirements as judged by the Investigator on the basis of medical history and routine laboratory test results.
  • Subject has a body mass index (BMI) of ≥20.00 and <30.00 kg/m2
  • Subject is willing to refrain from consuming alcohol 24 h prior to test days.
  • Subject is willing to refrain from consuming caffeine and caffeine-containing products 12 h prior to test days.
  • Subject is willing to refrain from vigorous physical activity 12 h prior to test days.
  • Subject is a non-smoker.
  • Subject understands the study procedures and signs forms providing informed consent to participate in the study and authorization for release of relevant protected health information to the study Investigator.

Exclusion Criteria:

  • Subject has a positive drug screening of amphetamines, barbiturates, benzodiazepines, cannabis, cocaine, methamphetamines, methadone, 3,4-methylenedioxymethamphetamine, opiates or tricyclic antidepressants at screening.
  • Subject has abnormal laboratory test results of clinical significance, including, but not limited to: creatinine ≥1.5 mg/dL, or alanine aminotransferase (ALT) or aspartate aminotransferase (AST) ≥1.5X the upper limit of normal at screening.
  • Subject has donated more than 300 mL of blood during the three months prior to screening.
  • Subject has uncontrolled hypertension (systolic blood pressure ≥160 mm Hg or diastolic blood pressure ≥100 mm Hg) as defined by the average blood pressure measured at screening. One re-test will be allowed on a separate day prior to visit 2, day 0 for subjects whose blood pressure exceeds either of these cut points at visit 1.
  • Subject has a history or presence of clinically important cardiac, renal, hepatic, endocrine (including diabetes mellitus), pulmonary, biliary, gastrointestinal, pancreatic, or neurologic disorders that, in the judgment of the Investigator, would interfere with the subject's ability to provide informed consent, comply with the study protocol (which might confound the interpretation of the study results), or put the subject at undue risk.
  • Subject has a history, in the judgment of the Investigator, of a psychological illness or condition such as to interfere with the subject's ability to understand the requirements of the study.
  • Use of any sleep aid medication within four days prior to each test day.
  • Subject has a history or presence of cancer in the prior two years, except for non-melanoma skin cancer.
  • Subject is pregnant, planning to be pregnant during the study period, lactating, or women of childbearing potential who are unwilling to commit to the use of a medically approved form of contraception throughout the study period. The method of contraception must be recorded in the source documentation.
  • Excessive habitual caffeine consumption (>300 mg caffeine/d or ≥3 cups of caffeinated coffee/d), following screening and throughout the study period.
  • Use of any psychotropic medication within four weeks of screening and throughout the study.
  • Use of antibiotics or signs of active systemic infection. Treatment visits will be rescheduled to allow the subject to wash off of the antibiotic for at least five days prior to any test visit.
  • Subject has had exposure to any non-registered drug product within 30 days prior to the screening visit.
  • Use of dietary supplements containing any of the following: ginkgo biloba, St. John's wort, ginseng, gotu kola (Indian pennywort); daily doses of vitamin E (≥30 mg/d) or folic acid (≥400 ug/d); thiamine, riboflavin, and/or pyridoxine (≥2 mg/d); and eicosapentaenoic acid (EPA), docosahexaenoic acid or a combination of EPA + DHA (≥500 mg/d) within 2 weeks of screening visit.
  • Recent history of (within 12 months of screening visit 1) or strong potential for alcohol or substance abuse. Alcohol abuse is defined as >14 drinks per week (1 drink = 12 oz beer, 5 oz wine, or 1½ oz distilled spirits).
  • Subject has a known allergy or sensitivity to study product or any ingredients of the study product or meals provided.
  • The subject is unable to perform the tests on the CDR System during training to the established acceptable levels for participation in this type of study.

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:支持療法
  • 割り当て:ランダム化
  • 介入モデル:クロスオーバー割り当て
  • マスキング:トリプル

武器と介入

参加者グループ / アーム
介入・治療
プラセボコンパレーター:プラセボ
1 capsule of placebo twice a day
実験的:oréVida™ 60mg/day
1 capsule 30 mg oréVida™ twice a day (one in the morning, one in the afternoon, so in total 60 mg/day)
1 capsule 60 mg oréVida™ twice a day (one in the morning, one in the afternoon, so in total 120mg/day)
1 capsule 120 mg oréVida™ in the morning, one placebo capsule in the afternoon (si in total 120 mg/day)
実験的:oréVida™ 120mg/day (1)
1 capsule 30 mg oréVida™ twice a day (one in the morning, one in the afternoon, so in total 60 mg/day)
1 capsule 60 mg oréVida™ twice a day (one in the morning, one in the afternoon, so in total 120mg/day)
1 capsule 120 mg oréVida™ in the morning, one placebo capsule in the afternoon (si in total 120 mg/day)
実験的:oréVida™ 120mg/day (2)
1 capsule 30 mg oréVida™ twice a day (one in the morning, one in the afternoon, so in total 60 mg/day)
1 capsule 60 mg oréVida™ twice a day (one in the morning, one in the afternoon, so in total 120mg/day)
1 capsule 120 mg oréVida™ in the morning, one placebo capsule in the afternoon (si in total 120 mg/day)

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Vigilance, Attention, and Concentration Tasks
時間枠:4 times one day (at each test day, tasks 13 times repeated)

Cognitive Drug Research (CDR) Test Battery Attention:

  • Simple Reaction Time (Speed (msec))
  • Digit Vigilance (Speed (msec)/ Targets detected (%))
  • Choice Reaction Time(Speed (msec))
4 times one day (at each test day, tasks 13 times repeated)

二次結果の測定

結果測定
メジャーの説明
時間枠
Working Memory & Executive Function Tasks
時間枠:4 times one day (at each test day, tasks 7 times repeated)

CDR Test Battery Memory:

  • Numeric Working Memory (Sensitivity (SI); Speed (msec))
  • Spatial Working Memory (Sensitivity (SI); Speed (msec))
4 times one day (at each test day, tasks 7 times repeated)
Episodic Secondary Memory Tasks
時間枠:4 times one day (at each test day, tasks 7 times repeated)

CDR Test Battery Memory:

  • Immediate Word Recall (Words correctly recalled (%))
  • Delayed Word Recall (Words correctly recalled (%)
  • Word Recognition (Sensitivity (SI); Speed (msec))
  • Picture Recognition (Sensitivity (SI); Speed (msec))
4 times one day (at each test day, tasks 7 times repeated)
Additional Measurements / Questionnaires
時間枠:4 times one day (at each test day, VAS 13 times repeated / POMS 3 times repeated)
  • Bond-Lader Visual Analog Scale (VAS) of Mood and Alertness
  • Profile of Mood States (POMS) Questionnaire
4 times one day (at each test day, VAS 13 times repeated / POMS 3 times repeated)

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

捜査官

  • 主任研究者:Kathleen Kelley, MD、Provident Clinical Research

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始

2010年3月1日

一次修了 (実際)

2010年11月1日

研究の完了 (実際)

2010年11月1日

試験登録日

最初に提出

2010年6月11日

QC基準を満たした最初の提出物

2010年6月11日

最初の投稿 (見積もり)

2010年6月14日

学習記録の更新

投稿された最後の更新 (見積もり)

2011年6月9日

QC基準を満たした最後の更新が送信されました

2011年6月8日

最終確認日

2011年6月1日

詳しくは

本研究に関する用語

その他の研究ID番号

  • 2009-11-06-OREG

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