補助剤添加タンパク質ベースHCVワクチン候補の第I相臨床試験(HCVワクチン試験)
補助剤添加タンパク質ベースのHCVワクチン候補の第I相臨床試験(HCVワクチントライアル)
The purpose of this study is to investigate the safety and antibody (germ fighters) response of the experimental (investigational) vaccine against HCV when injected into the arm of healthy adults.
調査の概要
詳細な説明
The Hepatitis C Virus (HCV) continues to be a significant public health threat, infecting 58 million people worldwide and over 250,000 Canadians. The virus disproportionately affects marginalized populations. It is a bloodborne virus that affects the liver and is most commonly spread through unsafe injection practices, sexual practices that lead to blood exposures, and unsafe health care (i.e., transfusion of contaminated blood and blood products). If left untreated, these infections progress to chronic hepatitis, liver cirrhosis (liver failure) and potentially hepatocellular carcinoma (liver cancer) or death. Current treatments for HCV include expensive drug combinations that can cure HCV in most but do not prevent reinfection if there is another exposure. At this time, there are no vaccines available to prevent HCV and the diseases that it causes.
研究の種類
入学 (推定)
段階
- フェーズ 1
連絡先と場所
研究連絡先
- 名前:Kelly Kim, BSc, BA
- 電話番号:587-598-2336
- メール:hcv@ualberta.ca
研究場所
-
-
Alberta
-
Edmonton、Alberta、カナダ、T6G 2B7
- University of Alberta Hospital
-
コンタクト:
- Vanessa Meier-Stephenson, MD, PhD
-
-
Ontario
-
Ottawa、Ontario、カナダ、K1H 8L6
- Ottawa Hospital - General Campus
-
コンタクト:
- Curtis Cooper, MD, MSc
-
Toronto、Ontario、カナダ、M5G 2C4
- Toronto General Hospital - Toronto Centre for Liver Disease
-
コンタクト:
- Jordan Feld, MD, MSc
-
-
参加基準
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:
- Able to understand the purpose and the procedures involved in this study and sign the informed consent form;
- Non-pregnant individuals, 18-45 years of age inclusive;
- Individuals must agree not to become pregnant during the trial. If they are capable of pregnancy and sexually active, they must use an effective method of birth control;
- Non-smoker and in good general health, as determined by medical screening evaluation, performed by PI, or delegated sub-investigator no greater than 4 weeks (28 days) before the first dose in the form of medical history, clinical laboratory tests and physical examination;
- Agrees to reside in the geographical area for next 12 months and not intending to travel outside of Canada for at least 14 days following each study vaccine administration;
- Agree not to participate in any other clinical trial during the trial;
- Agree not to donate blood for the duration of the trial;
- Agree to restrain from intensive physical exercise i.e., exercise that varies significantly from an everyday exercise routine, 3 days before and after (± 3 days) administration of each dose, including each interim visit for blood sample collection;
- Up to date on recommended seasonal vaccines (influenza and COVID-19) at the time of study enrolment.
Exclusion Criteria:
- Presence of Hepatitis C antibody (HCV Ab);
- Presence of significant acute infection requiring systemic antibiotic treatment within the 14 days prior to each product administration;
- Pregnant or breast feeding (all individuals physiologically capable of pregnancy will have a negative pregnancy test result prior to each study product administered);
- Past significant reaction following any previous vaccination;
- History of hypersensitivity to any vaccine component;
- Presence of acute infectious disease or fever (e.g., sub-lingual temperature 38.5°C) within the five days prior to study product administration;
- Presence of current or suspected serious chronic diseases such as cardiac or autoimmune disease (HIV or other immunodeficiencies), insulin dependent diabetes, progressive neurological disease, severe malnutrition, acute or progressive hepatic disease, acute or progressive renal disease, psoriasis, rheumatoid arthritis, asthma, epilepsy or obsessive-compulsive disorder, skin carcinoma excluding non-spreadable skin cancers such as basal cell and squamous cell carcinoma;
- Evidence and/or any history of leukaemia, lymphoma, or neoplasm;
- Presence or suspicion of impaired immune system function. Currently receiving or having within the past three years received immunosuppressive therapy, including systemic steroids, ACTH or inhaled steroids in dosages that are associated with hypothalamic-pituitary-adrenal axis suppression, such as 1mg/kg/day of prednisone or its equivalent or chronic use of inhaled high potency corticosteroids [budesonide 800 µg per day or fluticasone 750 µg];
- Received blood, blood products or a parenteral immunoglobulin preparation in the past 12 weeks;
- Evidence of bleeding diathesis or any condition that may be associated with a prolonged bleeding time;
- Known inherited genetic anomaly (known as cytogenic disorders) e.g., Down's syndrome;
- Evidence of any condition that, in the opinion of the clinical investigator, might interfere with the evaluation of the study objectives or pose excessive risks to participants;
- Clinically significant abnormal laboratory as assessed by the trial physician.
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: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:AVIHepC1
Contains two components: (1) GMP-Grade E1E2 heterodimer envelope protein (4.5µg); and (2) GMP-Grade SLA-SE adjuvant. |
Intramuscular injection administered at 0, 4, and 24 weeks. |
|
プラセボコンパレーター:Normal Saline
0.9% sodium chloride |
*Only applicable for double-blinded randomized component of the study. Intramuscular injection administered at 0, 4, and 24 weeks. |
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 |
|---|---|---|
|
Adverse Events
時間枠:6 months after last dose of vaccine is administered
|
Safety is the primary outcome. Clinical symptoms and signs, standard laboratory parameters (hematological and biochemical), and ancillary data will be collected and assessed for safety monitoring throughout the study which will also be reviewed by the Data Safety Monitoring Board (DSMB) accordingly. |
6 months after last dose of vaccine is administered
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Immunogenicity
時間枠:6 months after last dose of vaccine is administered
|
Antibody titres: Samples of sera and PBMCs will be collected from the participants prior to each injection and at the scheduled clinic visits. The titre of vaccine specific antibodies will be determined using ELISA. The presence of vaccine-specific antibodies in all participants in the study will be monitored. |
6 months after last dose of vaccine is administered
|
|
Immunogenicity
時間枠:6 months after last dose of vaccine is administered
|
Assessment for pan-genotypic neutralizing antibodies in vitro: Sera will be tested for neutralization capacity via a panel of infectious cell-culture-propagated HCV genotypes. |
6 months after last dose of vaccine is administered
|
|
Immunogenicity
時間枠:6 months after last dose of vaccine is administered
|
T cell responses: T cell responses generated by vaccinees pre- and post-vaccination will be measured by flow cytometry. |
6 months after last dose of vaccine is administered
|
協力者と研究者
スポンサー
捜査官
- 主任研究者:Michael Houghton, PhD、University of Alberta
- スタディチェア:Vanessa Meier-Stephenson, MD, PhD、University of Alberta
- 主任研究者:Lorne Tyrrell, MD, PhD、University of Alberta
- 主任研究者:Jordan Feld, MD, MSc、University of Toronto
- 主任研究者:Curtis Cooper, MD, MSc、University of Ottawa
研究記録日
主要日程の研究
研究開始 (推定)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
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
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
- Pro00147152
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
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。