NCT05212766招募中不适用
Role of the Oral Microbiome & Mucosal Immunity in COVID-19 Disease: Diagnostic/Prognostic Utility in South Asian Populations
适应症
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 750
- 试验地点
- 1
- 主要终点
- Relationship between oral mucosal immunity and microbiome on COVID outcomes in different ethnic groups
研究概览
简要总结
Determining whether in the mouth there are differences between the participant groups in the nature and activity of mucosal innate immunity, in immune responses to SARS-COV2 antigens, or in the oral microbiome
详细描述
Cross sectional with longitudinal component
- Stimulated whole mouth fluid (SWMF) and blood samples from South Asian and non-Asian populations
- Controls, and COVID-19 patients in both populations.
- Oral disease questionnaire and clinical examination
- Separation of SWMF into pellet for DNA extraction for microbiomics and supernatant for cell phenotype analysis, cytokines and antibodies to SARS-CoV2 antigens
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •• South Asian and White British persons and those diagnosed with symptomatic or asymptomatic COVID-19 infection.
- •Aged 18 or over. Able to understand and consent.
- •Uninfected subjects: no history of COVID-19; not vaccinated; (negative for anti-SARS-CoV2 nucleoprotein antibodies at lab)
- •For patient groups: Confirmed COVID-19 positivity, symptoms and symptom onset within the past 21 days; Be recently hospitalised with COVID-19 disease; Have COVID-19 disease proven by PCR testing for SARS-CoV-2 within the last 21 days; COVID disease severity graded as per NIH/WHO.
- •Recovered groups: Have had COVID-19 disease proven by PCR testing for SARS-CoV-
- •COVID disease severity graded as per WHO or NIH equivalent criteria
- •Those willing to participate on a single occasion but unwilling to participate with longitudinal samples will not be excluded.
- •Smoking, obesity, diabetes, heart disease, antibiotics or treatment related to COVID is not excluded.
排除标准
- •• Those patients unwilling to participate, those unable to understand sufficiently to give informed consent and those unable to participate due to the severity of COVID-19 disease. Those patients classified as not either South Asian or White British heritage.
- •Patients with malignancy, pregnancy, long term immune suppression, inability to give informed consent, not willing or able to have oral examination.
- •Diabetes not excluded but screening for diabetes will be performed: glucose will be assessed in blood/serum sample (150ul).
- •Exclusion criteria summary:
- •Critically ill participants who cannot give informed consent
- •Those who are not willing to have an oral examination, or donate blood or saliva samples.
- •Those who cannot chew / drool to provide a SWMF sample due to severe/critical medical conditions
- •Participants with known malignancies or who are pregnant
- •Participants who are on long-term immunosuppressants (e.g. for autoimmune diseases)
- •Participation in other current research that is designed to, or is expected to alter the immune response.
- •Inability to communicate, understand or read English.
结局指标
主要结局
Relationship between oral mucosal immunity and microbiome on COVID outcomes in different ethnic groups
时间窗: 16 weeks
Multiple assessments
次要结局
- Impact of pre-existing oral disease(16 weeks)
- Impact of immunity and oral microbiome(16 weeks)
研究者
研究点 (1)
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