Clinical Validation of a Simple and Fast Immunochromatographic Assay for Qualitative Determination of Specific ImmunoGLObulin IgG/IgM Antibodies to 2019- nCoV in Whole bLood, Serum or Plasma Specimen
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 1,000
- 试验地点
- 5
- 主要终点
- Tumor Necrosis Factor (TNF) quantification
研究概览
简要总结
In COVID-19 pandemic, it is of critical importance to identify a rapid and simple diagnostic method to be used in clinical settings to timely inform and refine strategies that can prevent, control, and stop the spread of SARS-CoV-2. The 2019-nCoV IgG/IgM Rapid Test Cassette (Whole Blood/Serum/Plasma) is a qualitative, membrane-based immunoassay for the detection of immunoglobulin G (IgG) and Immunoglobulin M (IgM) antibodies to SARS-CoV-2 in whole blood, serum or plasma specimen. Clinical specimens from patients who were suspected of being infected with 2019-nCoV will be used to evaluate the performance of the assay.
详细描述
In COVID-19 pandemic, it is of critical importance to identify a rapid and simple diagnostic method to be used in clinical settings to timely inform and refine strategies that can prevent, control, and stop the spread of SARS-CoV-2. The 2019-nCoV IgG/IgM Rapid Test Cassette (Whole Blood/Serum/Plasma) is a qualitative, membrane-based immunoassay for the detection of Immunoglobulin G (IgG) and Immunoglobulin M (IgM) antibodies to SARS-CoV-2in whole blood, serum or plasma specimen. This test consists of two components, an IgG component and an IgM component. In the IgG component, anti-human IgG is coated in IgG test line region. During testing, the specimen reacts with 2019-nCoV antigen-coated particles in the test cassette. The mixture then migrates upward on the membrane chromatographically by capillary action and reacts with the anti-human IgG in IgG test line region, if the specimen contains IgG antibodies to SARS-CoV-2. The study aims to validate in a real life study a self diagnostic assay for SARS-CoV-2 with the advantages of high speed, simple operation and low cost, and overcomes the shortcomings of the existing molecular detection methods. Clinical specimens from patients who were suspected of being infected with 2019-nCoV will be used to evaluate the performance of the assay. In parallel, we will also use molecular assays for the detection of the presence of the viral RNA from nasopharyngeal swabs since Polymerase Chain Reaction is currently the gold standard.
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
- 否
入选标准
- •Suspected cases who meet the following 2 criteria at the same time:
- •Epidemiological history: There was a history of contact with confirmed cases before the onset of illness; or subjects with at least one symptom in the last week before accrual in the trial. Subjects who have been in contact with people positive for SARS-CoV-2 in the previous 14 days.
- •Clinical manifestations are defined as :
- •Fever >37.5°; dry cough, muscle pain and/or fatigue, anosmia, subjects with respiratory distress (Respiratory Rate >25/min or O2 Saturation <92%) or imaging characteristics of pneumonia; or the total number of white blood cells is normal or decreased with the lymphocyte count decreased in the early stage of onset or there is an abnormal C-Reactive protein. Other symptoms that clinical investigator will relate to SARS-CoV-2 infection. Subject or cancer patients who have been quarantined for suspect symptoms and have access to hospital to continue therapy or to receive major surgery
- •Confirmed cases, namely patients or subjects with positive Reverse Transcription-Polymerase Chain Reaction (RT-PCR) for SARS-CoV-
- •On the basis of meeting the criteria for suspected cases, sputum, throat swabs, lower respiratory tract secretions, and other specimens are tested by realtime RT-PCR for positive nucleic acid detection of new coronavirus; or viral gene sequencing is highly homologous with known new coronaviruses. Patients positive are serially tested with SARS-CoV-2 lgM / IgG Rapid Test to evaluate the immune response in IgG negative patients and the reliability of the test in those patients who develop clinical signs of SARS-CoV-2 during the trial.
- •Patients who are considered at high risk for infection and eligible for active therapy and major surgery
- •Frailty (age and multiple comorbidities) planned to receive a standard systemic anticancer treatment comprising chemotherapy and/or immunotherapy and/or radiation therapy or to receive an experimental treatment
- •Major surgery or surgery after neoadjuvant chemotherapy and or chemo/radiotherapy
排除标准
- •Ascertained influenza virus, parainfluenza virus, adenovirus, respiratory syncytial virus, rhinovirus, human metapneumovirus, Severe Acute Respiratory Syndrome coronavirus, and other known other viral pneumonia;
- •Ascertained mycoplasma pneumoniae, chlamydia pneumonia, and bacterial pneumonia; non-infectious diseases such as vasculitis, dermatomyositis, and organizing pneumonia.
结局指标
主要结局
Tumor Necrosis Factor (TNF) quantification
时间窗: 3 months
Multiplex immunoassay
Evaluation of the rate of SARS-CoV-2 positive cancer patients and health professionals in a comprehensive cancer center or in a cancer setting.
时间窗: 6 months
Patients positive are serially tested with SARSCoV-2 lgM / IgG Rapid Test to evaluate the immune response in IgG negative patients and the reliability of the test in those patients who develop clinical signs of SARS-CoV-2 during the trial.
Evaluation of test accuracy
时间窗: 3 months
The 2019-nCoV IgG/IgM Rapid Test Cassette (Whole Blood/Serum/Plasma) was compared with a leading commercial Polymerase Chain Reaction
Interleukin-6 quantification
时间窗: 3 months
Multiplex immunoassay
Interleukin-2 quantification
时间窗: 3 months
Multiplex immunoassay
Interleukin-1 quantification
时间窗: 6 months
Multiplex immunoassay
Interferon gamma quantification
时间窗: 3 months
Multiplex immunoassay
次要结局
未报告次要终点