Prevention of Acute Respiratory Infection in Taiwanese Institutionalized Elderly
30 июня 2022 г. обновлено: Megan Murray, MD, ScD, Harvard Medical School (HMS and HSDM)
Prevention of Acute Respiratory Infection in Taiwanese Institutionalized Elderly (PARITIE)
The purpose of this study is to assess the efficacy of Bacille Calmette-Guérin (BCG) vaccination compared to placebo against acute respiratory infections in the elderly who are less protected by standard vaccines against influenza than other age groups.
The investigators hypothesize that BCG vaccination can reduce incidence of infection and severity of a range of acute respiratory infections.
Patients who are residents of participating long-term care facilities (LTCFs), who agree to participate in the study, or with a legal guardian who agrees on their behalf, will be randomly assigned to receive BCG vaccination or a placebo.
Participants will be followed for up to six months to assess the incidence of infection and the severity of a range of acute respiratory infections.
Обзор исследования
Статус
Отозван
Условия
Вмешательство/лечение
Подробное описание
This is a Phase III, double-blind, randomized placebo-controlled trial comparing efficacy of BCG vaccination to that of placebo in reducing severity of a range of acute respiratory infections. Participants will need to meet eligibility criteria in order to be included in the study. Those selected will be asked to provide a blood sample for complete blood count, liver function and renal tests, tests to calculate MELD score, also serological testing.
Participants will be randomized in a 1:1 allocation to receive intradermal administration of BCG vaccination or placebo at baseline. During follow-up, the study team will monitor participants' health status by using intermittent surveys about the presence of adverse events potentially related to vaccination, clinic visits or hospitalization for acute respiratory infection, BioFire® Respiratory 2.1 panel for respiratory pathogens and disease outcome status.
The investigators will screen 980 individuals to enroll 830 participants, resulting in 415 receiving BCG vaccine and 415 receiving placebo. The proposed enrollment sample size is designed to provide 80% power to detect 60% vaccine efficacy (a relative risk of 0.4 among the vaccinated) with 0.05 type-1 error in a two-tailed test, assuming 10% lost to follow-up. The number of individuals screened assumes about 15% will not be eligible to be enrolled after screening.
Objective: To measure the impact of one-time BCG-Japan vaccination on acute respiratory infections leading to hospitalization in the elderly.
Primary Endpoint 1: The cumulative incidence of hospitalization for acute respiratory infection following BCG vaccination compared to that following placebo, starting from 14 days post-vaccination, as defined using relevant ICD-10 codes.
If BCG vaccine is shown to be effective in this age group, it will be of major benefit to both study participants and other elderly individuals at risk for acute respiratory infections and have added protection from disease. Identification of an intervention that can reduce the risk of infection and/or of being hospitalized with ARI would reduce the number of new cases and reducing the number of cases that require hospital admission and vast resources.
Тип исследования
Интервенционный
Фаза
- Фаза 2
- Фаза 3
Критерии участия
Исследователи ищут людей, которые соответствуют определенному описанию, называемому критериям приемлемости. Некоторыми примерами этих критериев являются общее состояние здоровья человека или предшествующее лечение.
Критерии приемлемости
Возраст, подходящий для обучения
От 55 лет до 85 лет (Взрослый, Пожилой взрослый)
Принимает здоровых добровольцев
Да
Полы, имеющие право на обучение
Все
Описание
Inclusion Criteria:
- Clients of a long-term care facility
- 55-85 years old
Exclusion Criteria:
- Known previous or current active TB disease
- Exposure to individual with documented active TB within previous three months
- Fever (>37.5 C) within the past 24 hours
Current serious underlying medical conditions:
- HIV+
- Currently taking immunosuppressive or immunomodulatory drugs
- Expect to receive chemotherapy or radiation therapy in the coming six months, receipt of chemotherapy in the past six months or undergoing chemotherapy
- Currently on any anti-cytokine therapy
- History of organ or bone marrow transplantation
- Individual or family history of familial or acquired immune disorder, including auto-immune disorders
- Neutropenia/leukopenia (<500 neutrophils/mm3 or <400 lymphocytes/mm3)
- Chronic kidney disease (Glomerular Filtration Rate< 30 ml/min/1.73m2)
- Elevated liver enzymes (alanine aminotransferase >260 IU/L or aspartate aminotransferase >200 IU/L) or Model for End-Stage Liver Disease (MELD) score ≥30
- Treatment with oral or intravenous steroids at the time of screening, defined as daily doses of 10mg prednisone or equivalent for longer than 3 months.
- Solid or hematologic malignancy including lymphoma, leukemia and other reticuloendothelial system carcinomas within the past two years.
- Presence of Parkinson's disease
- Evidence of dermatitis at site of vaccination
- Living with someone with HIV, immunocompromised, taking immunosuppressive drugs
- Suspicion of active viral or bacterial infection, or taking antivirals or antibiotics
Any vaccine administration two weeks before or after BCG administration. For those who have received the Covid-19 vaccine, the two weeks are considered after the 2nd dose.
- Doctors in Taiwan do not always encourage the use of Covid-19 vaccination due to low incidence of disease and the risk of death due to blood clots in the only approved vaccine for use (AstraZeneca).
- Known allergy to components of the BCG vaccine or prior serious reaction to previous BCG administration
- Plan to leave the long-term care facility within the next three months
- Taking part in any ongoing trial that includes administration of an investigational product relevant to respiratory disease
- Participants with cognitive impairment whose legal guardians cannot be contacted
Учебный план
В этом разделе представлена подробная информация о плане исследования, в том числе о том, как планируется исследование и что оно измеряет.
Как устроено исследование?
Детали дизайна
- Основная цель: Профилактика
- Распределение: Рандомизированный
- Интервенционная модель: Параллельное назначение
- Маскировка: Тройной
Оружие и интервенции
Группа участников / Армия |
Вмешательство/лечение |
|---|---|
|
Экспериментальный: BCG Vaccine
Participants randomized to the BCG Vaccine Arm will receive the vaccine.
The vaccination site is about halfway down the outer aspect of the upper arm.
|
0,1 мл восстановленной вакцины БЦЖ, введенной внутрикожно на исходном уровне.
|
|
Плацебо Компаратор: Placebo Arm
Placebo will be administered in an intradermal route in the same location as the BCG vaccines': upper arm.
|
.1 mL of diluent (saline) given intradermally at baseline
|
Что измеряет исследование?
Первичные показатели результатов
Мера результата |
Мера Описание |
Временное ограничение |
|---|---|---|
|
To measure the impact of one-time BCG vaccination compared to placebo in reducing the occurrence of acute respiratory infection leading to hospitalization in the elderly in Taiwan
Временное ограничение: 6 months
|
Number of hospitalizations for acute respiratory infection as defined by list of ICD codes
|
6 months
|
Вторичные показатели результатов
Мера результата |
Мера Описание |
Временное ограничение |
|---|---|---|
|
To measure the impact of one-time BCG vaccination compared to placebo in reducing the occurrence of medically attended acute respiratory infection
Временное ограничение: 6 months
|
Number of medically attended acute respiratory infection
|
6 months
|
|
To measure the impact of one-time BCG vaccination compared to placebo on microbiologically confirmed viral respiratory illness
Временное ограничение: 6 months
|
Number of microbiologically confirmed viral respiratory illness by viral pathogen as measure by BioFire® Respiratory 2.1 PCR panel
|
6 months
|
|
To measure the impact of one-time BCG vaccination compared to placebo on duration of hospitalization due to acute respiratory infection during the study follow-up period
Временное ограничение: 6 months
|
Total duration of days spent hospitalized due to acute respiratory infection during the study follow-up period
|
6 months
|
|
To measure the impact of one-time BCG vaccination compared to placebo on critical admissions during the follow-up period
Временное ограничение: 6 months
|
Number of critical are admissions during the follow-up period
|
6 months
|
|
To measure the impact of one-time BCG vaccination compared to placebo on all-cause mortality deaths
Временное ограничение: 6 months
|
Number of all-cause mortality deaths
|
6 months
|
|
To measure the impact of one-time BCG vaccination compared to placebo on local and systemic adverse events
Временное ограничение: 6 months
|
Number of local and systemic adverse events to BCG vaccination following randomization
|
6 months
|
|
To measure the impact of one-time BCG vaccination compared to placebo on changes of antibody profiles
Временное ограничение: 6 months
|
Number of changes in antibody profiles between enrollment and follow-up
|
6 months
|
Соавторы и исследователи
Здесь вы найдете людей и организации, участвующие в этом исследовании.
Соавторы
Следователи
- Главный следователь: Megan Murray, ScD, Harvard Medical School (HMS and HSDM)
Публикации и полезные ссылки
Лицо, ответственное за внесение сведений об исследовании, добровольно предоставляет эти публикации. Это может быть что угодно, связанное с исследованием.
Общие публикации
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Полезные ссылки
Даты записи исследования
Эти даты отслеживают ход отправки отчетов об исследованиях и сводных результатов на сайт ClinicalTrials.gov. Записи исследований и сообщаемые результаты проверяются Национальной медицинской библиотекой (NLM), чтобы убедиться, что они соответствуют определенным стандартам контроля качества, прежде чем публиковать их на общедоступном веб-сайте.
Изучение основных дат
Начало исследования (Ожидаемый)
1 мая 2022 г.
Первичное завершение (Ожидаемый)
1 июля 2022 г.
Завершение исследования (Ожидаемый)
1 сентября 2022 г.
Даты регистрации исследования
Первый отправленный
28 мая 2021 г.
Впервые представлено, что соответствует критериям контроля качества
23 июня 2021 г.
Первый опубликованный (Действительный)
24 июня 2021 г.
Обновления учебных записей
Последнее опубликованное обновление (Действительный)
6 июля 2022 г.
Последнее отправленное обновление, отвечающее критериям контроля качества
30 июня 2022 г.
Последняя проверка
1 июня 2022 г.
Дополнительная информация
Термины, связанные с этим исследованием
Дополнительные соответствующие термины MeSH
Другие идентификационные номера исследования
- IRB20-0661
Планирование данных отдельных участников (IPD)
Планируете делиться данными об отдельных участниках (IPD)?
НЕТ
Информация о лекарствах и устройствах, исследовательские документы
Изучает лекарственный продукт, регулируемый FDA США.
Нет
Изучает продукт устройства, регулируемый Управлением по санитарному надзору за качеством пищевых продуктов и медикаментов США.
Нет
Эта информация была получена непосредственно с веб-сайта clinicaltrials.gov без каких-либо изменений. Если у вас есть запросы на изменение, удаление или обновление сведений об исследовании, обращайтесь по адресу register@clinicaltrials.gov. Как только изменение будет реализовано на clinicaltrials.gov, оно будет автоматически обновлено и на нашем веб-сайте. .
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