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H1N1 Vaccine in Pregnant Women

A Phase II Study in Pregnant Women to Assess the Safety and Immunogenicity of an Unadjuvanted Sanofi Pasteur H1N1 Inactivated Influenza Vaccine Administered at Two Dose Levels

The purpose of this study is to evaluate an investigational 2009 H1N1 influenza vaccine to determine vaccine safety in pregnant women and the body's immune response (body's defense against disease) to different strengths of the H1N1 influenza vaccine. In this study, 2 strengths of the H1N1 influenza vaccine will be tested (given 3 weeks apart). Participants will include approximately 120 healthy pregnant women, ages 18-39 years, in their second or third trimester of pregnancy (14-34 weeks gestation). Study procedures will include 2 doses of vaccine, blood samples, cord blood samples at delivery, and recording temperature and vaccine side effects in a memory aid for 8 days following each vaccination. Participants will be involved in study related procedures for about 7 months.

調査の概要

詳細な説明

Recently, a novel swine-origin influenza A/H1N1 virus was identified as a significant cause of febrile respiratory illnesses in Mexico and the United States. It rapidly spread to many countries around the world, prompting the World Health Organization to declare a pandemic on June 11, 2009. Data from several cohorts in different age groups that received licensed trivalent seasonal influenza vaccines suggest that these vaccines are unlikely to provide protection against the new virus. In addition, adults are more likely to have measurable levels of serum hemagglutination inhibition assay (HAI) or neutralizing antibody than are children. These data indicate the need to develop vaccines against the new H1N1 strain and suggest that different vaccine strategies (e.g., number of doses, need for adjuvant) may be appropriate for persons in different age groups. Pregnant women are at an increased risk for the complications of influenza. A higher dose or multiple doses of an unadjuvanted, inactivated influenza H1N1 vaccine may be necessary to confer protection to this at risk population. This protocol will explore the antibody response following vaccination of pregnant women at 2 different dose levels (15 mcg and 30 mcg). The 2 doses of inactivated influenza H1N1 vaccine will be administered 21 days apart. This study will assess the immune response following a single dose of H1N1 vaccine, to assess whether individuals have any pre-existing "prime" immunity, such that the initial H1N1 vaccination serves as a boost, thus conferring a more rapid time to protection with the need for fewer doses. Antibody responses will be assessed 21 days after each dose. The primary objectives are: safety, to assess the safety of unadjuvanted, inactivated H1N1influenza vaccine in pregnant women when administered at the 15 mcg or 30 mcg dose; and immunogenicity, to assess the antibody response following a single dose of unadjuvanted, inactivated H1N1 influenza vaccine in pregnant women when administered at the 15 mcg or 30 mcg dose. The secondary objectives are to: assess the antibody response following 2 doses of unadjuvanted, inactivated H1N1 influenza vaccine in pregnant women when administered at the 15 mcg or 30 mcg dose; and assess the efficiency of placental transport of maternal influenza antigen specific antibodies to the neonate. This is a randomized, double-blinded, phase II study in 120 pregnant women, ages 18-39 years. Subjects will be randomized into 2 groups (60 pregnant women per dose group) to receive intramuscular inactivated influenza H1N1 vaccine at 15 mcg (Group 1) or 30 mcg (Group 2) on Days 0 and 21. Following immunization, safety will be measured by assessment of adverse events through 21 days following the last vaccination (Day 42), serious adverse events and new-onset chronic medical conditions through 7 months post first vaccination (Day 201). Reactogenicity to the vaccine will be assessed for 8 days following each vaccination (Day 0-7). Immunogenicity testing will include HAI and neutralizing antibody testing on serum obtained on Days 0, 21 and 42. This includes samples collected prior to each vaccination and samples collected 21 days following each vaccination. HAI antibody testing will be also be performed on serum from maternal and cord blood collected at delivery.

研究の種類

介入

入学 (実際)

120

段階

  • フェーズ2

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

    • Missouri
      • St. Louis、Missouri、アメリカ、63104
        • Saint Louis University - Center for Vaccine Development
    • North Carolina
      • Durham、North Carolina、アメリカ、27705
        • Duke University Medical Center
    • Tennessee
      • Nashville、Tennessee、アメリカ、37232-2573
        • Vanderbilt University
    • Texas
      • Houston、Texas、アメリカ、77030
        • Baylor College of Medicine - Department of Molecular Virology and Microbiology
    • Washington
      • Seattle、Washington、アメリカ、98101
        • Group Health Cooperative

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

18年~39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

女性

説明

Inclusion Criteria:

  • Pregnant female between the ages of 18 and 39 years, inclusive.
  • Is from 14-34 weeks of gestation, inclusive.
  • Had at least one prenatal visit during which pregnancy was confirmed.
  • Is in good health, as determined by vital signs (heart rate 100 beats per minute; blood pressure: systolic 140 mm Hg; diastolic less than or equal to 90 mm Hg; oral temperature less than 100 degrees Fahrenheit), medical history to ensure any existing medical diagnoses or conditions are stable and not considered clinically significant, and targeted physical examination based on medical history. A stable medical condition is defined as health outcomes of the specific disease are considered to be within acceptable limits in the last 3 months.
  • Able to understand and comply with planned study procedures.
  • Provides written informed consent prior to initiation of any study procedures.
  • Agrees to sign medical release for herself and her infant(s) to allow study staff to gather pregnancy outcome data, if needed per clinical site policy.

Exclusion Criteria:

  • Has a known allergy to eggs or other components in the vaccines (these may include, but are not limited to: gelatin, formaldehyde, octoxinol and chicken protein).
  • Has a history of severe reactions following previous immunization with influenza virus vaccines.
  • Has participated in a novel influenza H1N1 2009 vaccine study in the past 2 years or has history of novel influenza H1N1 2009 infection prior to enrollment.
  • Has received any other live licensed vaccines within 4 weeks or inactivated licensed vaccines within 2 weeks prior to vaccination in this study prior to vaccination or plan receipt of such vaccines within 21 days following the last vaccination (except for seasonal inactivated influenza vaccine which may be received 2 weeks post either vaccination). Measles, mumps, and rubella vaccine and tetanus, diphtheria, and acellular pertussis vaccine are permitted post-partum.
  • Has received an experimental/investigational agent (vaccine, drug, biologic, device, blood product, or medication) within one month prior to vaccination in this study, or expects to receive another experimental/investigational agent during the study period (prior to the Day 201 follow-up call - 180 days after the second vaccination).
  • Has an acute illness and/or an oral temperature greater than or equal to 100.0 degrees Fahrenheit, within 72 hours of vaccination (This may result in a temporary delay of vaccination).
  • Has immunosuppression as a result of an underlying illness or treatment, or use of anti-cancer chemotherapy or radiation therapy within the preceding 36 months.
  • Has an active neoplastic disease (excluding non-melanoma skin cancer), a history of any hematologic malignancy, current bleeding disorder, or taking anticoagulants.
  • Long term use of glucocorticoids, including oral or parenteral, or high-dose inhaled steroids (>800 micrograms/day of beclomethasone dipropionate or equivalent) within the preceding 6 months (nasal and topical steroids are allowed) or has received betamethasone or dexamethasone to accelerate fetal lung maturity.
  • Has a history of receiving immunoglobulin or other blood product (with exception of Rhogam) within the 3 months prior to enrollment in this study.
  • Has a diagnosis of a current and uncontrolled major psychiatric disorder.
  • Has been hospitalized for psychiatric illness, history of suicide attempt, or confinement for danger to self or others, within the past 10 years.
  • The subject is receiving any of the following psychiatric drugs: aripiprazole, clozapine, ziprasidone, haloperidol, molindone, loxapine, thioridazine, thiothixene, pimozide, fluphenazine, risperidone, mesoridazine, quetiapine, trifluoperazine, trifluopromazine, chlorprothixene, chlorpromazine, perphenazine, olanzapine, carbamazepine, divalproex sodium, lithium carbonate or lithium citrate. Subjects who are receiving an antidepressant drug (not listed above) and are stable for at least 3 months prior to enrollment without decompensating are allowed enrollment into the study.
  • Known active human immunodeficiency virus (HIV), hepatitis B, or hepatitis C infection.
  • History of alcohol or drug abuse in the last 5 years.
  • Has a seizure disorder or is on an anti-seizure medication.
  • Has a history of Guillain-Barré Syndrome.
  • Plan to travel outside of North America in the time between the first vaccination and 42 days following the first vaccination.
  • Has an acute or chronic medical condition that, in the opinion of the investigator would render vaccination unsafe, or would interfere with the evaluation of responses (this includes, but is not limited to, known cardiac disease, chronic liver disease, significant renal disease, unstable or progressive neurological disorder, transplant recipients or uncontrolled diabetes, juvenile diabetes (Type I) or advanced diabetes with renal disease or eye disease, diabetes controlled by diet or insulin is acceptable.)
  • Has any condition that would, in the opinion of the site investigator, place the subject at an unacceptable risk of injury or render the subject unable to meet the requirements of the protocol.

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:防止
  • 割り当て:ランダム化
  • 介入モデル:並列代入
  • 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
実験的:Group 2: 30 mcg H1N1 vaccine
60 subjects to receive 30 mcg of inactivated H1N1 vaccine on Day 0 and Day 21.
Two doses of inactivated influenza H1N1 vaccine delivered intramuscularly (IM) as 15 or 30 mcg dose. The 15 mcg dose will be administered as a single 0.5 mL IM injection in the deltoid muscle of the preferred arm. The 30 mcg dose will be administered as a single 1.0 mL injection in the deltoid muscle.
実験的:Group 1: 15 mcg H1N1 vaccine
60 subjects to receive 15 mcg of inactivated H1N1 vaccine on Day 0 and Day 21.
Two doses of inactivated influenza H1N1 vaccine delivered intramuscularly (IM) as 15 or 30 mcg dose. The 15 mcg dose will be administered as a single 0.5 mL IM injection in the deltoid muscle of the preferred arm. The 30 mcg dose will be administered as a single 1.0 mL injection in the deltoid muscle.

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
新生児合併症を報告した参加者の数
時間枠:納品時
参加者は出産後に連絡を受け、新生児の合併症を収集するために医療記録を精査された。 データ収集プロセスは、この転帰測定に関して報告された合併症の前向きに定義されたリストに従っており、要件を満たしていれば、その一部は重篤な有害事象として報告されている可能性もあります。
納品時
Number of Participants Reporting Maternal Complications of Pregnancy, Labor and Delivery
時間枠:At time of delivery
Participants were contacted after delivery, and medical records reviewed, to collect complications experienced during pregnancy, labor and delivery. The data collection process followed a prospectively-defined list of complications reported for this outcome measure, some of which may have also been reported as serious adverse events if otherwise meeting those requirements.
At time of delivery
Number of Participants Reporting Solicited Subjective Local Reactions After First Vaccination
時間枠:Within 8 days (Day 0-7) post first vaccination
Participants maintained a memory aid to record daily the occurrence of local reactions of pain, tenderness and swelling for 8 days after vaccination (Day 0-7) based on their interference with daily activities. Participants are counted if they were reported as experiencing the symptom at any severity on any of the 8 days.
Within 8 days (Day 0-7) post first vaccination
Number of Participants Reporting Solicited Subjective Local Reactions After Second Vaccination
時間枠:Within 8 days (Day 0-7) post second vaccination
Participants maintained a memory aid to record daily the occurrence of local reactions of pain, tenderness and swelling for 8 days after vaccination (Day 0-7) based on their interference with daily activities. Participants are counted if they were reported as experiencing the symptom at any severity on any of the 8 days.
Within 8 days (Day 0-7) post second vaccination
Number of Participants Reporting Solicited Quantitative Local Reactions After First Vaccination
時間枠:Within 8 days (Day 0-7) post first vaccination
Participants maintained a memory aid to record daily the occurrence of local reactions of redness and swelling for 8 days after vaccination (Day 0-7). If the reaction was present, the maximum diameter was measured in millimeters (mm). Participants are counted if they reported experiencing the reaction with any measurement greater than 0 mm on any of the 8 days.
Within 8 days (Day 0-7) post first vaccination
Number of Participants Reporting Solicited Quantitative Local Reactions After Second Vaccination
時間枠:Within 8 days (Day 0-7) post second vaccination
Participants maintained a memory aid to record daily the occurrence of local reactions of redness and swelling for 8 days after vaccination (Day 0-7). If the reaction was present, the maximum diameter was measured in millimeters (mm). Participants are counted if they reported experiencing the reaction with any measurement greater than 0 mm on any of the 8 days.
Within 8 days (Day 0-7) post second vaccination
Number of Participants Reporting Solicited Subjective Systemic Reactions After First Vaccination
時間枠:Within 8 days (Day 0-7) post first vaccination
Participants maintained a memory aid to record daily the occurrence of systemic symptoms of feverishness, malaise, myalgia, headache, and nausea for 8 days after vaccination (Day 0-7) based on their interference with daily activities. Participants are counted if they reported experiencing the symptom at any severity on any of the 8 days.
Within 8 days (Day 0-7) post first vaccination
Number of Participants Reporting Solicited Subjective Systemic Reactions After Second Vaccination
時間枠:Within 8 days (Day 0-7) post second vaccination
Participants maintained a memory aid to record daily the occurrence of systemic symptoms of feverishness, malaise, myalgia, headache, and nausea for 8 days after vaccination (Day 0-7) based on their interference with daily activities. Participants are counted if they reported experiencing the symptom at any severity on any of the 8 days.
Within 8 days (Day 0-7) post second vaccination
Number of Participants Reporting Fever After First Vaccination
時間枠:Within 8 days (Day 0-7) post first vaccination
Participants were provided with a thermometer and a memory aid on which to record daily oral temperatures for 8 days after vaccination (Day 0-7). The protocol defined fever as oral temperature of 37.8 degrees Celsius or higher. Participants are counted as experiencing fever if they reported oral temperatures of 37.8 degrees Celsius or higher on any of the 8 days.
Within 8 days (Day 0-7) post first vaccination
Number of Participants Reporting Fever After Second Vaccination
時間枠:Within 8 days (Day 0-7) post second vaccination
Participants were provided with a thermometer and a memory aid on which to record daily oral temperatures for 8 days after vaccination (Day 0-7). The protocol defined fever as oral temperature of 37.8 degrees Celsius or higher. Participants are counted as experiencing fever if they reported oral temperatures of 37.8 degrees Celsius or higher on any of the 8 days.
Within 8 days (Day 0-7) post second vaccination
Number of Participants With 4-fold or Greater Serum Hemagglutination Inhibition (HAI) Antibody Titer Increases Against Influenza H1N1 2009 Virus Following a Single Dose of H1N1 Vaccine
時間枠:Day 0 prior to and Day 21 after the first vaccination
Blood was collected from all participants prior to the initial vaccination as well as 21 days after the first vaccination for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. A participant met the threshold of a 4-fold rise in titer if the Day 0 titer was less than 1:10 (the assay's lowest level of detection) and the Day 21 post vaccination titer was 1:40 or greater, or the Day 0 titer was greater than or equal to 1:10 and the Day 21 post vaccination titer was an increase by 4-fold or more.
Day 0 prior to and Day 21 after the first vaccination
Number of Participants With a Serum Hemagglutination Inhibition (HAI) Antibody Titer of 1:40 or Greater Against Influenza H1N1 2009 Virus Following a Single Dose of H1N1 Vaccine
時間枠:Day 21 after the first vaccination
Blood was collected from all participants at Day 21 post first vaccination for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. Each sample was tested at least twice according to standard operating procedures and the result of each replicate reported. A participant is counted if the geometric mean of the replicate values was 1:40 or greater.
Day 21 after the first vaccination
Number of Participants Reporting Vaccine-associated Serious Adverse Events (SAEs)
時間枠:Day 0 through Day 180 after last vaccination
Serious adverse events included any untoward medical occurrence that resulted in death of the mother, fetus or infant; was life threatening to mother, fetus or infant; was a persistent/significant disability/incapacity; required in-patient hospitalization or prolongation thereof; was a congenital anomaly/birth defect in fetus or infant; or may have jeopardized the mother, fetus or infant, or required intervention to prevent one of the outcomes, or was described as Guillain-Barré Syndrome. Association was determined by a clinician licensed to diagnose and listed on the site's FDA Form 1572.
Day 0 through Day 180 after last vaccination

二次結果の測定

結果測定
メジャーの説明
時間枠
Number of Participants With a Serum Hemagglutination Inhibition Assay (HAI) Antibody Titer Greater Than or Equal to 40 Against the Novel Influenza H1N1 2009 Virus in the Maternal Blood at the Time of Delivery
時間枠:At time of delivery
Blood was collected from participants at the time of delivery for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. Each sample was tested at least twice according to standard operating procedures and the result of each replicate reported. A participant is counted if the geometric mean of the replicate values was 1:40 or greater.
At time of delivery
Number of Participants With a Serum Hemagglutination Inhibition Assay (HAI) Antibody Titer Greater Than or Equal to 40 Against the Novel Influenza H1N1 2009 Virus in Cord Blood
時間枠:At time of delivery
Cord blood was collected at the time of delivery for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. Each sample was tested at least twice according to standard operating procedures and the result of each replicate reported. A participant is counted if the geometric mean of the replicate values was 1:40 or greater.
At time of delivery
Number of Participants With 4-fold or Greater Serum Hemagglutination Inhibition (HAI) Antibody Titer Increases Against Influenza H1N1 2009 Virus Following 2 Doses of H1N1 Vaccine
時間枠:Day 0 prior to first vaccination and Day 21 after the second vaccination
Blood was collected from all participants prior to the initial vaccination as well as 21 days after the second vaccination for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. A participant met the threshold of a 4-fold rise in titer if the Day 0 titer was less than 1:10 (the assay's lowest level of detection) and the Day 21 post vaccination 2 titer was 1:40 or greater, or the Day 0 titer was greater than or equal to 1:10 and the Day 21 post vaccination 2 titer was an increase by 4-fold or more.
Day 0 prior to first vaccination and Day 21 after the second vaccination
Number of Participants With a Serum Hemagglutination Inhibition (HAI) Antibody Titer of 1:40 or Greater Against Influenza H1N1 2009 Virus Following 2 Doses of H1N1 Vaccine
時間枠:Day 21 after the second vaccination
Blood was collected from all participants at Day 21 post second vaccination for testing in the HAI assay with Influenza H1N1 2009 virus as the assay antigen. Each sample was tested at least twice according to standard operating procedures and the result of each replicate reported. A participant is counted if the geometric mean of the replicate values was 1:40 or greater.
Day 21 after the second vaccination

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。

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

2009年9月1日

一次修了 (実際)

2010年5月1日

研究の完了 (実際)

2010年5月1日

試験登録日

最初に提出

2009年8月20日

QC基準を満たした最初の提出物

2009年8月20日

最初の投稿 (見積もり)

2009年8月21日

学習記録の更新

投稿された最後の更新 (見積もり)

2012年12月3日

QC基準を満たした最後の更新が送信されました

2012年11月29日

最終確認日

2010年4月1日

詳しくは

本研究に関する用語

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。

Inactivated H1N1 Vaccineの臨床試験

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