A Phase IV Clinical Trial of Influenza Vaccine (Split Virion), Inactivatedin (Anflu®) Pregnant Women (AnFLU-PREG)
A Phase IV, Randomized, Double-blind, Positive-controlled , Multicenter Clinical Trial to Evaluate the Immunogenicity and Safety of Influenza Vaccine (Split Virion) , Inactivated (Anflu®) in Pregnant Women
A phase IV clinical trial of Influenza Vaccine (Split Virion), Inactivated (Anflu®) developed by Sinovac Biotech Co., Ltd will be conducted in pregnant women.
A total of 150 healthy pregnant women aged 18~45 years at 22 to 34 weeks (+6 days) of pregnancy will be enrolled. All participants will be randomized to test group and control group in a ratio of 2:1 and receive one dose of vaccine (0.5 mL) of Sinovac Influenza Vaccine (Split Virion) , Inactivated (Anflu®) or Sanofi VAXIGRIP®, respectively.
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
A phase IV clinical trial of Influenza Vaccine (Split Virion), Inactivated (Anflu®) developed by Sinovac Biotech Co., Ltd will be conducted in Chinese pregnant women.
A total of 150 healthy pregnant women aged 18~45 years at 22 to 34 weeks (+6 days) of pregnancy will be enrolled.The trial is a randomized, double-blind, positive controlled study to evaluate the immunogenicity and safety of Influenza Vaccine (Split Virion) ,Inactivated (Anflu®) manufactured by Sinovac. The active control vaccine is VAXIGRIP® manufactured by Sanofi.
For immunogenicity assessment, blood samples will be collected from participants prior to vaccination, 28 days post-vaccination, and at the end of pregnancy (at delivery) to evaluate antibody levels in pregnant women following influenza vaccination. Additionally, the cord blood samples will be collected at delivery to assess transplacental antibody transfer to the fetus. Antibodies will be tested using the hemagglutination-inhibition (HI) assay.
For safety assessment, any immediate adverse events within 30 minutes after vaccine administration, solicited local and systemic adverse events within 7 days and unsolicited adverse events within 28 days will be collected. Serious adverse events will be collected from the time of informed consent signature until 3 months after delivery (or until 3 months after the event if pregnancy termination occurs). Pregnancy and neonatal outcomes will be collected by medical record review .
研究の種類
研究の種類
入学 (推定)
入学
段階
段階
- フェーズ 4
連絡先と場所
研究連絡先
研究連絡先
- 名前:Qi Hongbo
- 電話番号:13808376116
- メール:qihongbo@cqmu.edu.cn
研究場所
-
-
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Changsha、中国
- Hunan Provincial Maternal and Child Health Care Hospital
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コンタクト:
- Tang Yabing
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Chengdu、中国
- Chengdu Women's and Children's Central Hospital
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コンタクト:
- Lai Fan
-
Chongqing、中国
- The First Affiliated Hospital of Chongqing Medical University
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コンタクト:
- Qi Hongbo
-
Guangzhou、中国
- Nanfang Hospital, Southern Medical University
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コンタクト:
- Huang Liping
-
Nanjing、中国
- Nanjing Drum Tower Hospita
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コンタクト:
- Li Jie
-
Wuhan、中国
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology
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コンタクト:
- Feng Ling
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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 pregnant women aged 18 to 45 years (inclusive) with stable health status, at 22 to 34 weeks (+6 days) of gestation. Gestational age is determined based on early ultrasound examination, or based on the last menstrual period if early ultrasound is unavailable.
- Participants are able to understand and sign the informed consent form voluntarily;
- Participants are willing and able to adhere to visit schedules and maintain accessible contact throughout the study period;
- Participants should provide verifiable identification;
- Have a singleton pregnancy;
- Have normal non-invasive prenatal DNA test and systematic ultrasound results during the current pregnancy; normal amniocentesis results are required if the test has been performed.
Exclusion Criteria:
- Have a history of two or more preterm deliveries (delivery before 37 weeks of gestation), previous infants with low birth weight (birth weight <2500 g), or a history of neonatal asphyxia or neonatal neurological damage;
- Have a history of multiple unexplained spontaneous abortions;
- Have received any influenza vaccine or the influenza vaccine for the current influenza season within 6 months prior to enrollment, or plan to receive influenza vaccination during the study period.
- Have suffered from seasonal influenza within 6 months prior to enrollment.
- Have a history of Guillain-Barré syndrome within 6 weeks after previous influenza vaccination.
- Have allergic reactions or other severe adverse reactions to any influenza vaccine or its components.
- Have severe autoimmune diseases or immunodeficiency diseases (including but not limited to active systemic lupus erythematosus, rheumatoid arthritis, asplenia, functional asplenia, and HIV infection) and are judged unsuitable for vaccination by the investigator.
- Abnormal coagulation function (such as coagulation factor deficiency, coagulation disorders or platelet abnormalities).
- Have severe chronic diseases (including but not limited to cardiovascular diseases, partial liver diseases, renal diseases or malignant tumors) that may interfere with the study as judged by the investigator.
- Have a current or previous history of severe neurological diseases (epilepsy, convulsions) or psychiatric disorders, or have a family history of psychiatric disorders.
- Received corticosteroids (adult prednisone ≥20 mg/day or equivalent) or other immunosuppressants for ≥14 days, or cytotoxic therapy within 6 months prior to vaccination, or plan to receive such therapy during the study period.
- Received immunoglobulins or other blood products within 3 months prior to vaccination, or plan to receive such products during the study period.
- Received any vaccine within 28 days prior to study vaccination, or plan to receive any vaccine within 28 days after study vaccination.
- Have enrolled in other clinical trials of investigational drugs or vaccines during the follow-up period, or plan to receive investigational drugs or vaccines during the study period.
- Have acute diseases or acute exacerbation of chronic diseases within 7 days before vaccination.
- Have fever on the scheduled vaccination day with an axillary temperature ≥37.3 °C before vaccination.
- Have clinically significant abnormal laboratory findings as judged by the investigator, or meet any of the following laboratory criteria: a) White blood cell count >15.0×10^9/L; b) Neutrophil percentage >85%; c) Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) >2 times the upper limit of normal (2×ULN); d) Total bilirubin >2 times the upper limit of normal (2×ULN).
- Any other factors which are unsuitable for participation in the clinical trial as judged by the investigator.
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
- 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:4倍
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 |
|---|---|
|
実験的:Test Group
100 participants will receive one dose of vaccine (0.5 mL) of Sinovac Influenza Vaccine (Split Virion) Inactivated (Anflu®) . Route of administration is intramuscular injection at deltoid muscle of upper arm.Immunization schedule is 1 dose |
Participants will receive one dose of Sinovac Anflu® . |
|
アクティブコンパレータ:Control Group
50 participants will receive one dose of vaccine (0.5 mL) of VAXIGRIP® manufactured by Sanofi. Route of administration is intramuscular injection at deltoid muscle of upper arm.Immunization schedule is 1 dose |
Participants will receive one dose of Sanofi Vaxigrip®. |
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 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
The seroconversion rates (SCRs) of hemagglutination inhibition (HI) antibodies at day 28 ,as measured by HAI assay for vaccine-matched influenza A and B
時間枠:28 days after vaccination
|
Influenza A included H1N1 and H3N2 and influenza B strains included Victoria-lineage. Seroconversion is defined as either a baseline HI titer <1:10 and a post-vaccination titer ≥1:40 or a baseline HI titer ≥1:10 and a minimum 4-fold rise in post-vaccination HI antibody titer. |
28 days after vaccination
|
|
Incidence of adverse reactions within 28 days after vaccination
時間枠:28 days after vaccination
|
Incidence of adverse reactions within 28 days after vaccination. Adverse reactions include solicited and unsolicited adverse reactions. Solicited local (injection site) symptoms: pain, swelling, erythema, induration, pruritus; Solicited systemic (non-injection site) symptoms: fever (axillary temperature), fatigue, myalgia, headache, hypersensitivity reaction. |
28 days after vaccination
|
二次結果の測定
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
The seroprotection rates (SPRs) of HI antibodies at day 28 ,as measured by HAI assay for vaccine-matched influenza A and B
時間枠:28 days after vaccination
|
Influenza A included H1N1 and H3N2 and influenza B strains included Victoria-lineage. Seroprotection is defined as an HI titer ≥1: 40. |
28 days after vaccination
|
|
The geometric mean titers (GMTs) of HI antibodies at day 28 ,as measured by HAI assay for vaccine-matched influenza A and B
時間枠:28 days after vaccination
|
Influenza A included H1N1 and H3N2 and influenza B strains included Victoria-lineage. Log-transformed post-vaccination HI antibody titer will be the dependent variable, with treatment group as fixed effect and log-transformed pre-vaccination HI antibody titer as covariate. Least-squares mean differences with two-sided 95% CIs will be estimated and back-transformed via exponentiation to derive adjusted GMT ratios (experimental vs control) and corresponding two-sided 95% CIs. |
28 days after vaccination
|
|
The geometric mean fold rises (GMFRs) of HI antibodies at day 28 ,as measured by HAI assay for vaccine-matched influenza A and B
時間枠:28 days after vaccination
|
Influenza A included H1N1 and H3N2 and influenza B strains included Victoria-lineage. Geometric mean of antibody fold-rise with two-sided 95% CI will be calculated , along with the geometric mean ratio and its corresponding two-sided 95% CI. |
28 days after vaccination
|
|
The SCRs of HI antibodies at delivery, as measured by HAI assay for vaccine-matched influenza A and B
時間枠:At the date of delivery , estimated to be 6-18 weeks after randomization.
|
Influenza A included H1N1 and H3N2 and influenza B strains included Victoria-lineage. Seroconversion is defined as either a baseline HI titer <1:10 and a post-vaccination titer ≥1:40 or a baseline HI titer ≥1:10 and a minimum 4-fold rise in post-vaccination HI antibody titer. |
At the date of delivery , estimated to be 6-18 weeks after randomization.
|
|
The SPRs of HI antibodies at delivery ,as measured by HAI assay for vaccine-matched influenza A and B
時間枠:At the date of delivery , estimated to be 6-18 weeks after randomization.
|
Influenza A included H1N1 and H3N2 and influenza B strains included Victoria-lineage. Seroprotection is defined as an HI titer ≥1: 40. |
At the date of delivery , estimated to be 6-18 weeks after randomization.
|
|
The GMTs of HI antibodies at delivery,as measured by HAI assay for vaccine-matched influenza A and B
時間枠:At the date of delivery , estimated to be 6-18 weeks after randomization.
|
Influenza A included H1N1 and H3N2 and influenza B strains included Victoria-lineage. Log-transformed post-vaccination HI antibody titer will be the dependent variable, with treatment group as fixed effect and log-transformed pre-vaccination HI antibody titer as covariate. Least-squares mean differences with two-sided 95% CIs will be estimated and back-transformed via exponentiation to derive adjusted GMT ratios (experimental vs control) and corresponding two-sided 95% CIs. |
At the date of delivery , estimated to be 6-18 weeks after randomization.
|
|
The GMFRs of HI antibodies at delivery,as measured by HAI assay for vaccine-matched influenza A and B
時間枠:At the date of delivery , estimated to be 6-18 weeks after randomization.
|
Influenza A included H1N1 and H3N2 and influenza B strains included Victoria-lineage. Geometric mean of antibody fold-rise with two-sided 95% CI will be calculated , along with the geometric mean ratio and its corresponding two-sided 95% CI. |
At the date of delivery , estimated to be 6-18 weeks after randomization.
|
|
The SPRs of HI antibodies in cord blood at delivery ,as measured by HAI assay for vaccine-matched influenza A and B
時間枠:At the date of delivery, estimated to be 6-18 weeks after randomization
|
Influenza A included H1N1 and H3N2 and influenza B strains included Victoria-lineage. Seroprotection is defined as an HI titer ≥1: 40. |
At the date of delivery, estimated to be 6-18 weeks after randomization
|
|
The GMTs of HI antibodies in cord blood at delivery, as measured by HAI assay for vaccine-matched influenza A and B
時間枠:At the date of delivery, estimated to be 6-18 weeks after randomization
|
Influenza A included H1N1 and H3N2 and influenza B strains included Victoria-lineage. Log-transformed post-vaccination HI antibody titer will be the dependent variable, with treatment group as fixed effect and log-transformed pre-vaccination HI antibody titer as covariate. Least-squares mean differences with two-sided 95% CIs will be estimated and back-transformed via exponentiation to derive adjusted GMT ratios (experimental vs control) and corresponding two-sided 95% CIs. |
At the date of delivery, estimated to be 6-18 weeks after randomization
|
|
Incidence of serious adverse events from vaccination through 3 months after delivery.
時間枠:From vaccination to 3 months after delivery.
|
Serious adverse events within 3 months after delivery. |
From vaccination to 3 months after delivery.
|
|
Pregnancy outcomes
時間枠:At the date of delivery, estimated to be 6-18 weeks after randomization
|
Pregnancy outcomes: term birth, preterm birth, elective termination of pregnancy, fetal death, and gestational complications, etc. |
At the date of delivery, estimated to be 6-18 weeks after randomization
|
|
Neonatal birth outcomes
時間枠:3 months after delivery
|
Birth outcomes: normal status, low birth weight, congenital malformations, neonatal NICU admission, and neonatal death, etc. |
3 months after delivery
|
協力者と研究者
捜査官
捜査官
- 主任研究者:Qi Hongbo、First Affiliated Hospital of Chongqing Medical University
研究記録日
主要日程の研究
研究開始 (推定)
研究開始
一次修了 (推定)
一次修了
研究の完了 (推定)
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 (実際)
最初の投稿
学習記録の更新
投稿された最後の更新 (実際)
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
キーワード
追加の関連 MeSH 用語
その他の研究ID番号
その他の研究ID番号
- PRO-INF-4015
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
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