跳至主要内容
临床试验/2023-507065-26-00
2023-507065-26-00已完成3 期

A randomized controlled trial to compare the immunogenicity and skin imprinting of intradermal and intramuscular rabies vaccination < RABISKIMM >

Institute Of Tropical Medicine2 个研究点 分布在 1 个国家目标入组 165 人开始时间: 2024年1月31日最近更新:
适应症

试验速览

阶段
3 期
状态
已完成
发起方
入组人数
165
试验地点
2
主要终点
The percentage and absolute number of skin-resident and RABV-specific T cells within the CD3+ lymphocyte parent population after booster vaccination at D120+14, measured by flow cytometry.

研究概览

简要总结

To compare the number and proportion of skin-resident memory T cells against RABV (RABV-TRM) after booster dose by vaccination route.

入排标准

年龄范围
18 years 至 64 years(18-64 Years)
接受健康志愿者

入选标准

  • MAIN + PILOT + HEALTHY CONTROL GROUP: >/=18 to ≤50 years of age
  • PILOT: should have had a completed or partly completed schedule of rabies vaccination more than one month prior to recruitment
  • PILOT: BMI ≤30 kg/m2
  • PILOT: Able and willing to provide written informed consent
  • PILOT: No acute illness at time of recruitment
  • MAIN + PILOT: Willing to use contraception during the course of the trial (for women of childbearing potential)
  • PILOT: Not pregnant or planning to become pregnant during the course of the trial
  • HEALTHY CONTROL GROUP: Able and willing to provide written informed consent
  • HEALTHY CONTROL GROUP: Agreement to share and discuss participant’s medical history and medical records when relevant
  • HEALTHY CONTROL GROUP: No acute illness at time of recruitment
  • MAIN: BMI ≤30 kg/m2
  • MAIN: Agreement to refrain from blood donation and other vaccinations 30 days following each vaccination
  • MAIN: Agreement to share and discuss participant’s medical history and medical records when relevant
  • MAIN: Able and willing to provide written informed consent

排除标准

  • MAIN + PILOT: Subjects who received a rabies vaccination prior to recruitment (including a single dose)
  • MAIN + PILOT: Pregnancy or planning to become pregnant during the course of the trial
  • MAIN + PILOT + HEALTHY CONTROL GROUP: Subjects who received PEP (or immunoglobulines)
  • MAIN + PILOT: Receipt of any vaccine (licensed or experimental) within 30 days prior to recruitment
  • MAIN + PILOT: Active participation in another interventional clinical study with active substance intake during the trial or 1 month prior to recruitment
  • MAIN + PILOT: Any confirmed or suspected immunosuppressive or immunodeficient state (incl. cancer); asplenia; recurrent severe infections and use of immunosuppressant medication within the last 6 months prior to recruitment, except topical or short-term oral steroids.
  • MAIN + PILOT: Severe and/or uncontrolled cardiovascular disease, respiratory disease, gastrointestinal disease, liver disease, renal disease, endocrine disorder and neurological illness (mild/moderate well controlled comorbidities are allowed)
  • MAIN + PILOT: History of anaphylaxis, allergic disease or reactions to any component of the study vaccines
  • HEALTHY CONTROL GROUP: Receipt of any vaccine (licensed or experimental) within 30 days prior to recruitment.
  • MAIN + PILOT : Tendency to keloid (scar) formation in response to skin damage
  • MAIN + PILOT + HEALTHY CONTROL GROUP: Skin diseases at the biopsy and vaccination site
  • MAIN + PILOT: History of bleeding disorder (e.g. factor deficiency, coagulopathy or platelet disorder), or prior history of significant bleeding or bruising following IM injections or venipuncture
  • MAIN + PILOT: Any other significant disease, disorder, planned surgery, or finding which may significantly affect the ability of the volunteer to participate in the study or impair interpretation of the study data
  • HEALTHY CONTROL GROUP: Subjects who received a rabies vaccination prior to recruitment (including a single dose)
  • HEALTHY CONTROL GROUP: Receipt of any vaccine (licensed or experimental) within 30 days prior to recruitment
  • HEALTHY CONTROL GROUP: Any confirmed or suspected immunosuppressive or immunodeficient state (incl. cancer); asplenia; recurrent severe infections and use of immunosuppressant medication within the last 6 months, except topical or short-term oral steroids.
  • HEALTHY CONTROL GROUP: Any other significant disease, disorder, or finding which may significantly affect the ability of the volunteer to participate in the study or impair interpretation of the study data
  • HEALTHY CONTROL GROUP: Suspected or known alcohol or drug dependency
  • MAIN + PILOT: Suspected or known alcohol or drug dependency

结局指标

主要结局

The percentage and absolute number of skin-resident and RABV-specific T cells within the CD3+ lymphocyte parent population after booster vaccination at D120+14, measured by flow cytometry.

The percentage and absolute number of skin-resident and RABV-specific T cells within the CD3+ lymphocyte parent population after booster vaccination at D120+14, measured by flow cytometry.

次要结局

  • Percentage and absolute number of circulating and RABV-specific TCM and TEM cells within the CD3+ lymphocyte parent population at D120+14
  • Percentage and absolute number of increase in RABV-specific TRM, TCM and TEM cells within the CD3+ lymphocyte parent population from D28 to D120+14
  • Percentage and absolute number of RABV-specific TRM, TCM and TEM CD4+ and CD8+ T cells within the CD3+ lymphocyte parent population at D28 and D120+14, and their percentage and absolute number of increase from D28 to D120+14
  • The geometric mean titres (GMTs) of neutralizing RRFIT test at D210+14
  • The nAbs GMT titres, IFNy+ spot forming units (SFU) and IFNy/TNF-a/IL-2+ SFU at D0, D7, D28, D120, D120+14, D120+90, measured by RRFIT and elispot/fluorospot respectively.
  • At all timepoints, the geometric mean titres (GMTs) of neutralizing RRFIT test and IFNy+ spot forming units (SFU) and IFNy/TNF-a/IL-2+ SFU. In addition at D28 and D120+14, the percentage and absolute number of RABV-specific TRM, TCM and TEM cells within the CD3+ lymphocyte parent population.

研究者

发起方
Institute Of Tropical Medicine
申办方类型
Hospital/Clinic/Other health care facility
责任方
Principal Investigator
主要研究者

Wim Adriaensen

Scientific

Institute Of Tropical Medicine

研究点 (2)

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