Safety and Immunogenicity of Seasonal Influenza Vaccine With Topical Imiquimod in Immunocompromised Patients: A Randomized Controlled Pilot Trial
试验速览
- 阶段
- 2 期
- 状态
- 已完成
- 发起方
- 入组人数
- 70
- 试验地点
- 1
- 主要终点
- Response to the vaccine
研究概览
简要总结
In this open label, single centre, pilot randomized controlled clinical trial the investigators aim to compare the immunogenicity and safety of a new influenza vaccination strategy consisting in the topical administration of imiquimod at the injection site before vaccination vs. a standard intramuscular vaccine injection in SOT recipients and HIV-infected individuals. The investigators planned to enroll 70 outpatients patients (50% solid-organ transplant recipients and 50% HIV-infected patients) regularly followed at the Transplantation center and the Infectious disease outpatients' clinics of the Lausanne University Hospital. Study participants will be randomized in a 1:1:1 ratio to receive the standard intramuscular vaccine (control group) or a topical application of an imiquimod containing cream followed by intramuscular (imiquimod-IM) or intradermal (imiquimod-ID) vaccine injection. After vaccination participants will be followed for a period of 180 days. Blood samples will be drawn at baseline and at day 21 and 180 for assessment of immunogenicity. Safety outcomes will be assessed immediately after vaccine administration, and at day 7 (phone call), 21 and 180.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Prevention
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Provision of written, informed consent
- •Age > 18 years
- •HIV infection or at least 3 months after kidney transplantation
- •Stable outpatients
- •Able and willing to comply with the study protocol
排除标准
- •Documented egg and/or imiquimod allergy
- •Previous life-threatening reaction to seasonal influenza vaccine (i.e. Guillain-Barré Syndrome)
- •Previous severe reaction to imiquimod cream
- •Pregnancy or breast-feeding
- •Patients with autoimmune diseases
- •For HIV-infected patients:
- •Current active opportunistic infection
- •For kidney transplant recipients:
- •Ongoing therapy for rejection (including steroid pulse or prednisone > 2 mg/kg/day over more than 14 days)
- •Ongoing therapy with IVIG and eculizumab or current and past (<6months) therapy with rituximab
研究组 & 干预措施
Intramuscular vaccine
The control intervention consists in the administration of the standard intramuscular influenza vaccine (Mutagrip®), containing 15 μg of each of the three viral strains without imiquimod.
干预措施: Mutagrip (Biological)
Imiquimod and intradermal vaccine
In the imiquimod and intradermal vaccine arm, intervention consists in the topical application of a single bag of Aldara™ creme 5%, containing 12.5 mg of imiquimod, on a 16 cm2 square delimitated area on the non-dominant arm at the time of influenza vaccination. An intradermal influenza vaccine preparations containing 15 μg of each of the three viral strains (Intanza®) will be administrated in the centre of the marked area after the imiquimod cream is fully absorbed.
干预措施: Intanza (Biological)
Imiquimod and intradermal vaccine
In the imiquimod and intradermal vaccine arm, intervention consists in the topical application of a single bag of Aldara™ creme 5%, containing 12.5 mg of imiquimod, on a 16 cm2 square delimitated area on the non-dominant arm at the time of influenza vaccination. An intradermal influenza vaccine preparations containing 15 μg of each of the three viral strains (Intanza®) will be administrated in the centre of the marked area after the imiquimod cream is fully absorbed.
干预措施: Aldara (Drug)
Imiquimod and intramuscular vaccine
In the imiquimod and intramuscular vaccine arm, intervention consists in the topical application of a single bag of Aldara™ creme 5%, containing 12.5 mg of imiquimod, on a 16 cm2 square delimitated area on the non-dominant arm at the time of influenza vaccination. An intramuscular influenza vaccine preparations containing 15 μg of each of the three viral strains (Mutagrip®) will be administrated in the centre of the marked area after the imiquimod cream is fully absorbed.
干预措施: Mutagrip (Biological)
Imiquimod and intramuscular vaccine
In the imiquimod and intramuscular vaccine arm, intervention consists in the topical application of a single bag of Aldara™ creme 5%, containing 12.5 mg of imiquimod, on a 16 cm2 square delimitated area on the non-dominant arm at the time of influenza vaccination. An intramuscular influenza vaccine preparations containing 15 μg of each of the three viral strains (Mutagrip®) will be administrated in the centre of the marked area after the imiquimod cream is fully absorbed.
干预措施: Aldara (Drug)
结局指标
主要结局
Response to the vaccine
时间窗: 21 days after vaccination
Vaccine response rate (=seroconversion rate) at day 21 is the proportion of participants exhibiting a fourfold or greater increase of anti haemagglutinin (anti-HA) antibodies from baseline, measured by haemagglutinin inhibition (HI) assay 21 days after vaccination, for at least one viral strain.
次要结局
- Seroprotection rates(Baseline, 21 and 180 days after vaccination)
研究者
Oriol Manuel
PD Dr
University of Lausanne Hospitals