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SARS-CoV-2 immune response in asymptomatic patients

SARS-CoV-2 immune response in asymptomatic patients

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
NL-OMON
Registry ID
NL-OMON24645
Enrollment
75
Registered
2020-06-11
Start date
2020-06-01
Completion date
Unknown
Last updated
2024-02-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

SARS-CoV-2

Interventions

None listed

Sponsors

Amsterdam UMC, location AMC
Lead Sponsor

Eligibility

Inclusion criteria

Inclusion criteria: - Adult (age = 18 years) - Screened for COVID-19 according to the national guidelines because of a planned surgical or interventional procedure under general anesthesia. - Tested positive for SARS-CoV-2 with RT-PCR. - Asymptomatic at the moment of screening: no suspicion for COVID-19 for at least 48 hours prior to screening, based on a standardized questionnaire containing the following complaints: cough, dyspnoea, fever, general malaise, myalgia, headache, extreme fatigue (new onset), throat ache, obstructed/runny nose, loss of smell, loss of taste, abdominal pain, diarrhoea and vomiting.

Exclusion criteria

Exclusion criteria: - Not able or willing to give informed consent.

Design outcomes

Primary

MeasureTime frame
The primary objective is to determine the quantity and quality of antibody and T-cell responses to SARS-CoV-2 in asymptomatic patients who tested positive for SARS-CoV-2 with RT-PCR prior to interventions.

Secondary

MeasureTime frame
- To determine the level of serum antibody response to other (seasonal) coronaviruses. - To evaluate the effect of age, comorbidity and RT-PCR cycling threshold values as predictors for immune responses to SARS-CoV-2. - To evaluate the development of antibody and T-cell responses over time (up to one year after positive testing). - To compare levels of antibody and T-cell responses to SARS-CoV-2 of asymptomatic patients with those of mild and severe symptomatic patients with laboratory-confirmed COVID-19

Contacts

Public ContactAnnemieke van den Broek

Amsterdam UMC, location AMC

a.k.vandenbroek@amc.uva.nl+31 20 566 6807

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)