ETEC Logistics Trial (TREK) (Trek)
A Phase II, Double Blind, Randomized, Placebo-Controlled Study to Evaluate the Epidemiology of Natural Infection With Enterotoxigenic Escherichia Coli Occurring After Transcutaneous Immunization in a Field Setting
調査の概要
状態
状態
条件
条件
介入・治療
介入・治療
詳細な説明
The primary objectives of the study are to evaluate the incidence of ETEC illness in a field setting and to compare the safety of LT delivered by TCI with placebo. The secondary objectives include, but are not limited to:
evaluate the stool frequency per episode of ETEC illness in placebo recipients, to evaluate the immunogenicity of LT delivered by TCI, to evaluate the incidence of IBS following travel to areas of ETEC endemnicity, and to evaluate the incidence of VPO in placebo and LT patch recipients.
研究の種類
研究の種類
入学 (実際)
入学
段階
段階
- フェーズ2
連絡先と場所
研究場所
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California
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Long Beach、California、アメリカ、90806
- West Coast Clinical Trials
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Illinois
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Chicago、Illinois、アメリカ、60610
- Radiant Research
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Maryland
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Baltimore、Maryland、アメリカ、21205
- Johns Hopkins University, Bloomberg School of Public Health
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Minnesota
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Minneapolis、Minnesota、アメリカ、55430
- Twin Cities Clinical Research
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New Jersey
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Hackensack、New Jersey、アメリカ、07601
- Advanced Biomedical Research
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New York
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Ithica、New York、アメリカ、14850
- Asthma Allergy & Associates
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Ohio
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Columbus、Ohio、アメリカ、43212
- Radiant Research
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Texas
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Dallas、Texas、アメリカ、75235
- Radiant Research
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Houston、Texas、アメリカ、77024
- Breco Research
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Houston、Texas、アメリカ、77030
- Center for Infectious Diseases, The University of Texas Health Science Center at Houston
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San Antonio、Texas、アメリカ、78229
- Radiant Research
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Utah
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Salt Lake City、Utah、アメリカ、84124
- Jean Brown Research
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Washington
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Tacoma、Washington、アメリカ、98418
- Northwest Kinetics
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Antigua Guatemala、グアテマラ、03001
- Private Clinic Antigua
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Guanajuata
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San Miguel de Allende、Guanajuata、メキシコ、37700
- Private Clinic San Miguel
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Jalisco
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Guadalajara、Jalisco、メキシコ、44690
- Private Clinic Guadalajara
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Marina Vallarta
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Puerto Vallarta、Marina Vallarta、メキシコ、48334
- AmeriMed Hospital
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Morelos
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Cuernavaca、Morelos、メキシコ、62250
- Private Clinic Cuernavaca
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Quintana Roo
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Cancun、Quintana Roo、メキシコ、77500
- Hospital Americano
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参加基準
適格基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Healthy adult men and women 18-64 years of age inclusive at screening
- Signed Informed Consent form
- Planned travel to an area within 2 ½ hours traveling distance of Cuernavaca or Guadalajara, Mexico or Antigua, Guatemala (minimum stay of 7 days)
- If female who is not post-menopausal or surgically sterile, negative pregnancy test (within 24 hours prior to vaccination) and agreement to employ an effective form of birth control or practice abstinence through the end of the study.
Exclusion Criteria:
- Clinically significant abnormalities as determined by the Investigator/clinician during physical inspection
- Received investigational product from 30 days before date of first vaccination or during the entire study period
- Ever received LT, ETEC, or cholera vaccine
- History of traveler's diarrhea within the previous year
- Travel to a developing country within the last year
- Women who are pregnant or breastfeeding
- History of achlorhydria
- Evidence of immunosuppression, including concomitant immunosuppressive therapy; fever > 99.5°F (37.5°C) on day of vaccination
- Current problems with alcohol or substance abuse
- An employee of the study clinic
- Sensitivity or allergy to any of the vaccine components
- History of significant blood loss, blood product donation, or blood product recipient in the previous 60 days
- Planned use of Imodium or antibiotics for self treatment of diarrhea during the study period
- Visible tattoos or marks (tattoos/scars) at the vaccination areas that would prevent appropriate dermatologic monitoring of the vaccination sites; and
- Medical history of acute or chronic GI illness or major GI surgery.
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 割り当て:ランダム化
- 介入モデル:階乗代入
- マスキング:ダブル
アーム数
武器と介入
参加者グループ / アーム参加者グループ / アーム |
介入・治療介入・治療 |
|---|---|
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アクティブコンパレータ:Group 1
Group 1 subjects will receive two vaccinations via transcutaneous immunization (TCI), 14 to 21 days apart, with a patch containing 37.5µg LT
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Subjects in Group 1 will receive two vaccinations of a patch containing 37.5µg LT 2 to 3 weeks apart.
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プラセボコンパレーター:Group 2
Group 2 subjects will receive two vaccinations via transcutaneous immunization (TCI), 14 to 21 days apart, with a patch containing 0µg LT (placebo patch containing no LT)
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The placebo patch contains all of the components of the active patch, but with no LT included in the formulation.
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この研究は何を測定していますか?
主要な結果の測定
主要な結果の測定
結果測定 |
時間枠 |
|---|---|
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Incidence of Enterotoxigenic Escherichia coli (ETEC) illness defined as a diarrheal episode associated with an LT, LT/ST, or ST-positive ETEC strain isolated from a sample of a stool
時間枠:during the diarrheal episode or within 48 hours after the last stool in the diarrheal episode.
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during the diarrheal episode or within 48 hours after the last stool in the diarrheal episode.
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Safety of heat-labile enterotoxin of Escherichia coli (LT) delivered by transcutaneous immunization (TCI) vs placebo
時間枠:From vaccination 1 to completion of Day 180 follow-up, about a seven month time period
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From vaccination 1 to completion of Day 180 follow-up, about a seven month time period
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二次結果の測定
二次結果の測定
結果測定 |
時間枠 |
|---|---|
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Stool frequency per episode of ETEC illness in placebo recipients
時間枠:Duration of stay in Mexico or Guatemala assessed up to four weeks
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Duration of stay in Mexico or Guatemala assessed up to four weeks
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Immunogenicity of LT delivered by TCI
時間枠:at least three weeks prior to arrival in country, arrival in Mexico or Guatemala, and 5 to 18 days after arrival
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at least three weeks prior to arrival in country, arrival in Mexico or Guatemala, and 5 to 18 days after arrival
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Incidence of irritable bowel syndrome following travel to areas of ETEC endemnicity.
時間枠:Baseline through six months post return from Latin America. A period of about six months.
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Baseline through six months post return from Latin America. A period of about six months.
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Incidence of vaccine preventable outcome in placebo and LT patch recipients.
時間枠:Duration of each individual participant stay in Mexico or Guatemala ranging from 7 to 28 Days.
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Duration of each individual participant stay in Mexico or Guatemala ranging from 7 to 28 Days.
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協力者と研究者
捜査官
捜査官
- 主任研究者:Herbert L. DuPont, MD、Center for Infectious Diseases, The University of Texas Health Science Center at Houston
- 主任研究者:Robin McKenzie, MD、Johns Hopkins University, Bloomberg School of Public Health
- 主任研究者:Rama Yerramsetti、Breco Research, Houston, TX
- 主任研究者:William P Jennings、Radiant Research, San Antonio, TX
- 主任研究者:Yu-Luen Hsu、West Coast Clinical Trials, Long Beach, CA
- 主任研究者:Christopher A Smith、Asthma & Allergy Associates, Ithaca, NY
- 主任研究者:Benno G Roesch、Advanced Biomedical Research, Hackensack, NJ
- 主任研究者:Jeffrey G Geohas、Radiant Research, Chicago, IL
- 主任研究者:Gilbert Podolsky、Jean Brown Research, Salt Lake City, UT
- 主任研究者:Thomas Lagen、Northwest Kinetics, Tacoma, WA
- 主任研究者:Roy M Fleischmann、Radiant Research, Dallas, TX
- 主任研究者:Douglas R Schumacher、Radiant Research, Columbus, OH
- 主任研究者:Norman M Lunde、Twin Cities Clinical Research, Minneapolis, MN
- 主任研究者:Francisco G Sandoval、Universidad Autonoma De Guadalajara, Mexico
- 主任研究者:Juan Hector M Romero、Universidad Autonoma Guadalajara, Mexico
- 主任研究者:Jaime B Gerson、University of Texas, Cuernavaca, Mexico
- 主任研究者:Edwin Asturias、Universidad del Valle de Guatemala (Antigua)
- 主任研究者:Roberto Garcia、AmeriMed Puerto Vallarta, Mexico
- 主任研究者:Martha V Serrato、Hospital Americano, Cancun, Mexico
- 主任研究者:Robert Maxwell、Private Clinic, San Miguel de Allende, Mexico
出版物と役立つリンク
便利なリンク
研究記録日
主要日程の研究
研究開始
研究開始
一次修了 (実際)
一次修了
研究の完了 (実際)
研究の完了
試験登録日
最初に提出
最初に提出
QC基準を満たした最初の提出物
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
最初の投稿
学習記録の更新
投稿された最後の更新 (見積もり)
投稿された最後の更新
QC基準を満たした最後の更新が送信されました
QC基準を満たした最後の更新が送信されました
最終確認日
最終確認日
詳しくは
本研究に関する用語
その他の研究ID番号
その他の研究ID番号
- ELT206
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。