NCT04605952

Study to Find the Percentage of Cases Retaining COVID-19 IgG Antibodies 45-65 After They Have Tested Positive

• Status: Completed
• Phase: —
• Study type: Observational
• Enrollment: 201 (actual)
• Sponsor: Tata Main Hospital · Academic / Other
• Sex: All
• Age: 18 Years – 60 Years
• Healthy volunteers: Accepted

Summary

As a serosurveillance measure asymptomatic employees of an industrial workforce Jamshedpur (India) were tested for COVID-19 IgG antibodies. Of the tested employees who were positive for COVID-19 IgG antibodies the study aimed to find the percentage of cases who retained their COVID-19 IgG antibodies 45-65 days after initially testing positive.

Detailed description

As a serosurveillance measure, 3296 asymptomatic employees of an industrial workforce Jamshedpur (India) were tested for COVID-19 IgG antibodies specific for the spike subunit antigen by the ErbaLisa COVID-19, Erba Corporate Services (United Kingdom) between 28th June and 15th July 2020. The cases who tested positive for COVID-19 IgG antibodies were repeat tested for the presence of COVID-19 IgG at 45-65 days after initially testing positive. This was done with the aim of finding out the percentage of cases retaining their IgG antibodies at 45-65 days of initially testing positive.

Conditions

• Covid19

Interventions

Type	Name	Description
DIAGNOSTIC_TEST	Repeat SARS-CoV-2 IgG antibodies at 45-65 days	All cases who initially tested positive for SARS-CoV-2 IgG antibodies would undergo a repeat test at 45-65 days

Timeline

• Start date: 2020-07-01
• Primary completion: 2020-08-30
• Completion: 2020-08-30
• First posted: 2020-10-28
• Last updated: 2020-10-28

Locations

1 site across 1 country: India