Immune Response to Anti COVID-19 Vaccine in Immunocompromised Patients: a Cohort Study
2021年11月15日 更新者：Pontificia Universidad Catolica de Chile
Despite COVID-19 pandemic having started more than one year ago, there are still limited treatment options for these patients, and over 145 million cases and 3 millions deaths have ensued worldwide.
Fortunately, SARSCoV2 vaccines have been developed at an unprecedented pace.
While the vaccination programs are still ongoing, early reports on efficacy are mainly centered on healthy population.
In Chile most people have received the inactivated Coronavac vaccine.
Data on the immune response after vaccination in immunocompromised patients is lacking.
Therefore, this study aims to evaluate the immune response after Coronavac vaccine in 5 cohorts of immunocompromised patients and healthy controls.
We will include patients with cancer, HIV, solid organ transplant and patients receiving immunomodulatory agents for rheumatic diseases.
研究概览
研究类型
观察性的
注册 (实际的)
260
联系人和位置
本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。
学习地点
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Santiago、智利
- Red de Salud UC Christus
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参与标准
研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。
资格标准
适合学习的年龄
18年 及以上 (成人、年长者)
接受健康志愿者
不
有资格学习的性别
全部
取样方法
非概率样本
研究人群
Patients receiving care at the Red de Salud UC Christus in Santiago, Chile will be invited.
描述
General Inclusion Criteria:
- Eastern Cooperative Oncology Group < 3
- Vaccination with 2 doses of Coronavac vaccine
General Exclusion Criteria:
- Previous SARS-CoV-2 infection
- Vaccination with Coronavac more than 12 weeks before informed consent
- Intravenous immunoglobulin therapy 60 days before informed consent
- Any condition, that could interfere with the participant's participation during the study in the opinion of the treating investigator.
Cancer Cohort
Inclusion Criteria:
- Diagnosis of cancer in the previous 5 years (consistent biopsy is required).
- Life expectancy more than 12 weeks
Exclusion Criteria:
- Bone marrow transplant, solid organ recipient, HIV, immunosuppressant treatment for other condition.
Bone Marrow Transplant Cohort
Inclusion Criteria:
- Bone marrow transplant between January 2019 and December 2020
Exclusion Criteria:
- Other cancer diagnosis during the last 5 years, solid organ recipient, HIV, immunosuppressant treatment for other condition.
Solid Organ Recipient Cohort:
Inclusion Criteria:
- Liver, kidney or heart transplant between January 2019 and December 2020
- Active immunosuppressant treatment
Exclusion Criteria:
- Cancer diagnosis during the last 5 years, bone marrow transplant, immunosuppressant treatment for other condition, HIV
HIV Cohort:
Inclusion Criteria:
- CD4 <= 500 cels/mm3 documented one year before study enrollment
- Active antiretroviral therapy
- Viral load < 200 copies/ml
Exclusion Criteria:
- Cancer diagnosis during the last 5 years, bone marrow transplant or solid organ recipient, immunosuppressant treatment.
Rheumatic Disease Cohort
Inclusion Criteria:
- Diagnosis of rheumatoid arthritis, psoriatic arthritis, ankylosing spondylitis, relapsing polychondritis, Behcet disease or juvenile idiopathic arthritis
- Chronic immunomodulatory treatment with anti-TNF, anti-IL6 or anti-IL17 agents
Exclusion Criteria:
- Treatment with more than one biological agent.
- Cancer diagnosis during the last 5 years, bone marrow transplant or solid organ recipient, HIV diagnosis.
学习计划
本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。
研究是如何设计的？
设计细节
- 观测模型：队列
- 时间观点：预期
队列和干预
团体/队列 |
干预/治疗 |
|---|---|
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健康控制
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Detection of total and neutralizing antibodies against SARS-CoV-2
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Cancer Patients on active treatment
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Detection of total and neutralizing antibodies against SARS-CoV-2
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Bone marrow transplant patients
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Detection of total and neutralizing antibodies against SARS-CoV-2
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Solid organ transplant recipients
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Detection of total and neutralizing antibodies against SARS-CoV-2
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艾滋病患者
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Detection of total and neutralizing antibodies against SARS-CoV-2
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Rheumatic disease patients
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Detection of total and neutralizing antibodies against SARS-CoV-2
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研究衡量的是什么？
主要结果指标
结果测量 |
大体时间 |
|---|---|
|
Proportion of positive neutralizing antibodies 8 to12 weeks after Coronavac vaccine
大体时间：8 to12 weeks after Coronavac vaccine
|
8 to12 weeks after Coronavac vaccine
|
次要结果测量
结果测量 |
大体时间 |
|---|---|
|
Neutralizing geometric mean titers 8 to12 weeks after Coronavac vaccine
大体时间：8 to12 weeks after Coronavac vaccine
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8 to12 weeks after Coronavac vaccine
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合作者和调查者
在这里您可以找到参与这项研究的人员和组织。
调查人员
- 首席研究员：Elvira Balcells, MD、Pontificia Universidad Católica de Chile
出版物和有用的链接
负责输入研究信息的人员自愿提供这些出版物。这些可能与研究有关。
研究记录日期
这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。
研究主要日期
学习开始 (实际的)
2021年5月12日
初级完成 (实际的)
2021年9月1日
研究完成 (实际的)
2021年11月1日
研究注册日期
首次提交
2021年5月9日
首先提交符合 QC 标准的
2021年5月9日
首次发布 (实际的)
2021年5月17日
研究记录更新
最后更新发布 (实际的)
2021年11月16日
上次提交的符合 QC 标准的更新
2021年11月15日
最后验证
2021年5月1日
更多信息
此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.