- ICH GCP
- Реестр клинических исследований США
- Клиническое испытание NCT04884958
A Study to Investigate the Transmission and Burden of PVL-MRSA in Households in Sri Lanka
A Prospective Cohort Study to Investigate the Transmission and Burden of PVL-MRSA in Households in Sri Lanka
Обзор исследования
Статус
Условия
Подробное описание
Тип исследования
Регистрация (Ожидаемый)
Контакты и местонахождение
Критерии участия
Критерии приемлемости
Возраст, подходящий для обучения
Принимает здоровых добровольцев
Полы, имеющие право на обучение
Метод выборки
Исследуемая популяция
The index patients will have clinical infection due to Staphylococcus aureus identified during admission to Anuradhapura General Hospital.
The household contacts will be resident in the same household as the index patient so will be part of the local community served by Anuradhapura General Hospital.
Описание
Inclusion Criteria (index patient):
- Confirmed clinical infection caused by Staphylococcus aureus infection, including skin and soft tissue infection (SSTI) or infection of a normally sterile site.
- Participant is willing and able to give informed consent for participation in the study.
- Male or Female greater or equal to 18 years old.
- Household is within one day's travel of the Hospital.
Inclusion Criteria (household contact):
- Resident in the same household as index participant.
- Participant is willing and able to give informed consent for participation in the study if greater or equal to 18 years old or the parent/legal guardian if participant is less than 18 years old.
- Likely continued household residence for at least 3 months from initial sample collection.
- Able to comply with study requirements.
Exclusion Criteria (index patient):
- Deemed unsuitable by the responsible clinical team/clinician (e.g. terminal illness).
Exclusion Criteria (household contact):
- Not a resident of the household at the time of the index patient hospital admission.
- Deemed unsuitable by the responsible clinical team/clinician (e.g. terminal illness)
- At least 4 household contacts already enrolled to this study.
Учебный план
Как устроено исследование?
Детали дизайна
Когорты и вмешательства
Группа / когорта |
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Index patient
Adults with confirmed clinical infection caused by Staphylococcus aureus, including skin and soft tissue infection or infection of a normally sterile site.
These cases will be identified following admission to Anuradhapura General Hospital.
|
Household contacts
This cohort are resident in the same household as the index patient (maximum of four).
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Что измеряет исследование?
Первичные показатели результатов
Мера результата |
Мера Описание |
Временное ограничение |
---|---|---|
Determine the baseline prevalence of Staphylococcus aureus carriage or infection in household contacts of hospital inpatients diagnosed with clinical infection due to Staphylococcus aureus.
Временное ограничение: First household visit and swabbing of household contacts will be as soon as possible after recruitment of the index case.
|
Index cases will be identified by screening laboratory reports for samples obtained within 72 hours of hospital admission and where Staphylococcus aureus has been isolated from a skin or soft tissue infection or a normally sterile site and there is a clinical diagnosis of infection at that site.
Up to 4 household contacts of this index case will be approached to participate in the study and will have bacterial swabs of the anterior nares and any incidental sites of infection at an initial assessment (as soon after identification and recruitment as possible).
The swabs will be inoculated on to blood agar and MacConkey agar.
Staphylococcus aureus will be identified by colonial morphology, Gram stain, catalase test and coagulase test.
Methicillin resistant Staphylococcus aureus will be detected by disc diffusion method using a cefoxitin disc as per the CLSI protocol.
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First household visit and swabbing of household contacts will be as soon as possible after recruitment of the index case.
|
Вторичные показатели результатов
Мера результата |
Мера Описание |
Временное ограничение |
---|---|---|
Measure the frequency of Staphylococcus aureus transmission events within households over a three month period.
Временное ограничение: First visit and swabbing of the index and household contacts will be as soon as possible after recruitment of the index case. Both the index and household contacts will have a second visit 3 months later (window 2-4 months).
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Proportion of household individuals carrying same/similar strains, as determined by similarity in antimicrobial susceptibility profile and genotypic homology.
This will be assessed over a three month time period to detect possible household transmission in contacts who are initially not detected as carriers.
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First visit and swabbing of the index and household contacts will be as soon as possible after recruitment of the index case. Both the index and household contacts will have a second visit 3 months later (window 2-4 months).
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Characterise predisposing clinical, demographic or social characteristic differences of individuals/households with evidence of household transmission over a three month period by interview and completion of a proforma.
Временное ограничение: The baseline interviews will occur as soon as possible after the index patient is recruited and the second interview will occur three months later (window 2-4 months).
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After consent is obtained, study investigators will visit the dwellings to assess up to 4 household contacts.
A baseline interview using a proforma will be conducted to investigate each individual and their shared dwellings.
This will include identification of: dwelling location, type of dwelling, number of other inhabitants, pet/animal ownership, occupations, duration of residence, recent illness/hospitalisations, recent courses of antimicrobial treatment.
This will be repeated at the follow up visit to ensure there have not been any change in circumstances.
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The baseline interviews will occur as soon as possible after the index patient is recruited and the second interview will occur three months later (window 2-4 months).
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Describe virulence characteristics of strains causing a) (invasive) infection and b) higher number of household transmission events
Временное ограничение: Data analysis will occur throughout and beyond the study recruitment period, expected to take a minimum of 6 months.
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Analysis of whole genome sequencing and antimicrobial virulence data from isolates that are more associated with infection (in the index and household contacts) and where a high frequency of household transmission has been observed.
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Data analysis will occur throughout and beyond the study recruitment period, expected to take a minimum of 6 months.
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Соавторы и исследователи
Спонсор
Соавторы
Следователи
- Главный следователь: Thomas Darton, University of Sheffield
Даты записи исследования
Изучение основных дат
Начало исследования (Ожидаемый)
Первичное завершение (Ожидаемый)
Завершение исследования (Ожидаемый)
Даты регистрации исследования
Первый отправленный
Впервые представлено, что соответствует критериям контроля качества
Первый опубликованный (Действительный)
Обновления учебных записей
Последнее опубликованное обновление (Действительный)
Последнее отправленное обновление, отвечающее критериям контроля качества
Последняя проверка
Дополнительная информация
Термины, связанные с этим исследованием
Ключевые слова
Другие идентификационные номера исследования
- 164460
Планирование данных отдельных участников (IPD)
Планируете делиться данными об отдельных участниках (IPD)?
Информация о лекарствах и устройствах, исследовательские документы
Изучает лекарственный продукт, регулируемый FDA США.
Изучает продукт устройства, регулируемый Управлением по санитарному надзору за качеством пищевых продуктов и медикаментов США.
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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