CClinicalTrials.gg
Status unknownNCT04387890Updated May 28, 2020

Serologic Surveillance for SARS-CoV-2 (COVID-19) in a Prospective Cohort of Health Care Workers

An observational study in COVID-19, SARS-CoV 2 and Health Personnel, sponsored by Hospital Italiano de Buenos Aires. Status unknown. Open to participants aged 18 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2020-05-28.

Sponsored by Hospital Italiano de Buenos Aires · Observational

The sponsor has not verified this record recently (last verified May 2020), so the status shown — last known as Not yet recruiting — may be out of date.
Study type
Observational
Model
Cohort
Time perspective
Prospective
Enrollment
50
Ages
18 Years and older
Sex
All
01

Study summary

The investigators will follow a single prospective cohort of 50 Health Care Workers in the Hospital Italiano de Buenos Aires (Argentina) from May 15th to August 31st 2020 using antibody testing for SARS-CoV-2 IgM and IgG at baseline and every 2 weeks in order to assess the incidence of COVID-19, the prevalence of anti-SARS-CoV-2 antibodies (IgM and IgG) and incidence of reinfection or reactivations of previous COVID-19 using viral gene sequencing in this cohort.

Read the detailed description

SARS-CoV-2 infection in healthcare workers (HCW) is nowadays a frequent problem for patient care and organization of care teams. SARS-CoV-2 antibody assessment provides a tool to evaluate antibody prevalence in hospital staff identifying previously exposed individuals. Serologic testing could identify new cases of COVID-19 in an early fashion and could help to investigate cases of reactivation or reinfection in hospital workers. The study purpose is to conduct a study using serological screening for health care workers in a University Hospital in Buenos Aires in order to assess the risk of COVID-19 on those who have not developed an immune response against the virus, or to detect it in an early fashion (either pre-symptomatic or asymptomatic). If a study participant is suspected to have potential reinfection or reactivation of COVID-19, the investigators will conduct genome sequencing in order to be able to differentiate each case. The investigators will include 50 participants chosen at random among health care workers from the hospital Emergency Department (ED), Internal Medicine wards, or Critical Care Units who are exposed to COVID-19. Participants who agree to join the study and sign the informed consent form will be screened at baseline for SARS-CoV-2 IgM and IgG antibodies, along with a physical exam and basic laboratory determinations. They will be re-screened with antibodies every 2 weeks for a total of 3 months. If they contract COVID-19, antibody determinations and nasopharyngeal swabs will be carried out in order to identify those who are in favorable conditions to return to work. The main objective is to prospectively determine the incidence of COVID-19, Anti SARS-CoV-2 antibody prevalence, and incidence of SARS-CoV-2 reinfection or reactivation of COVID-19 in a health care workers cohort.

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Conditions studied

  • COVID-19
  • SARS-CoV 2
  • Health Personnel

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Keywords

  • SARS Virus
  • SARS-CoV-2
  • COVID-19
  • Health Personnel
03

In context

COVID-19

7,640 studies on the registry are indexed under COVID-19; 488 are open to participants now.

This study's planned enrollment of 50 is below the median of 261 across 3,136 observational studies indexed under COVID-19.

Browse COVID-19 studies →

Lead sponsor

Hospital Italiano de Buenos Aires is the lead sponsor of 128 studies on the registry; 23 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Probability sample

Study population

Physicians directed involved with the healthcare of COVID-19 patients

Inclusion criteria

  1. Healthcare staff (Physicians) AND
  2. Directly involved in care of patients with confirmed or suspected COVID-19 AND
  3. Working in any of the two hospital venues (Hospital Italiano Central and Hospital Italiano San Justo Agustín Rocca).

Exclusion criteria

Exclusion Criteria:

  1. Refusal to sign the Informed Consent Form OR
  2. Experienced symptoms compatible with COVID-19 in the last 14 days prior to eligibility screening
05

Study design

Observational model
Cohort
Time perspective
Prospective
Enrollment
50 participants (estimated)
Patient registry
No

Groups and cohorts

  • Serologic Screening

    Participants will be screened for IgM and IgG SARS-CoV-2 antibodies at baseline and every 2 weeks. Participants showing symptoms compatible with COVID-19 will undergo nasopharyngeal swab for PCR testing for diagnosis. Participants recovered from COVID-19 will have to have 2 negative and consecutive nasopharyngeal swab PCR tests in order to return to work.

    Diagnostic Test: Serologic SARS-CoV-2 screening

Interventions

  • Diagnostic testSerologic SARS-CoV-2 screening

    Quantitative Indirect Chemiluminescence Immunoassay (CLIA) to access SARS-CoV-2 specific IgM and IgG serum antibody level every 2 weeks during follow up

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What researchers measure

Primary outcomes

  1. Prevalence of anti SARS-CoV-2 antibodies (IgM and IgG) in health personnel

    Patients that has a positive result for IgM or IgG at baseline first test

    Time frame: Baseline at study inclussion

  2. COVID-19 incidence through serology-based screening and/or compatible symptoms in health personnel previously known to be unexposed to the virus

    Patients that has a positive result for IgM or IgG or PCR during follow up

    Time frame: During 3 months follow up

  3. Incidence of reactivation/reinfection for COVID-19 in health personnel with a positive serology for SARS-CoV-2

    Patients with confirmed previous SARS Cov 2 antibodies that reactivate symptomons or new increase in antibodies title during follow up

    Time frame: During 3 months follow up

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Study locations

No study locations are listed for this record.

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References and documents

Publications

  • The Lancet. COVID-19: protecting health-care workers. Lancet. 2020 Mar 21;395(10228):922. doi: 10.1016/S0140-6736(20)30644-9. No abstract available. PubMed 32199474 ↗
  • Remuzzi A, Remuzzi G. COVID-19 and Italy: what next? Lancet. 2020 Apr 11;395(10231):1225-1228. doi: 10.1016/S0140-6736(20)30627-9. Epub 2020 Mar 13. PubMed 32178769 ↗
  • Kimball A, Hatfield KM, Arons M, James A, Taylor J, Spicer K, Bardossy AC, Oakley LP, Tanwar S, Chisty Z, Bell JM, Methner M, Harney J, Jacobs JR, Carlson CM, McLaughlin HP, Stone N, Clark S, Brostrom-Smith C, Page LC, Kay M, Lewis J, Russell D, Hiatt B, Gant J, Duchin JS, Clark TA, Honein MA, Reddy SC, Jernigan JA; Public Health - Seattle & King County; CDC COVID-19 Investigation Team. Asymptomatic and Presymptomatic SARS-CoV-2 Infections in Residents of a Long-Term Care Skilled Nursing Facility - King County, Washington, March 2020. MMWR Morb Mortal Wkly Rep. 2020 Apr 3;69(13):377-381. doi: 10.15585/mmwr.mm6913e1. PubMed 32240128 ↗
  • Chu DKW, Pan Y, Cheng SMS, Hui KPY, Krishnan P, Liu Y, Ng DYM, Wan CKC, Yang P, Wang Q, Peiris M, Poon LLM. Molecular Diagnosis of a Novel Coronavirus (2019-nCoV) Causing an Outbreak of Pneumonia. Clin Chem. 2020 Apr 1;66(4):549-555. doi: 10.1093/clinchem/hvaa029. PubMed 32031583 ↗
  • Yu F, Yan L, Wang N, Yang S, Wang L, Tang Y, Gao G, Wang S, Ma C, Xie R, Wang F, Tan C, Zhu L, Guo Y, Zhang F. Quantitative Detection and Viral Load Analysis of SARS-CoV-2 in Infected Patients. Clin Infect Dis. 2020 Jul 28;71(15):793-798. doi: 10.1093/cid/ciaa345. PubMed 32221523 ↗
  • Yuan J, Kou S, Liang Y, Zeng J, Pan Y, Liu L. Polymerase Chain Reaction Assays Reverted to Positive in 25 Discharged Patients With COVID-19. Clin Infect Dis. 2020 Nov 19;71(16):2230-2232. doi: 10.1093/cid/ciaa398. PubMed 32266381 ↗
  • Li Y, Yao L, Li J, Chen L, Song Y, Cai Z, Yang C. Stability issues of RT-PCR testing of SARS-CoV-2 for hospitalized patients clinically diagnosed with COVID-19. J Med Virol. 2020 Jul;92(7):903-908. doi: 10.1002/jmv.25786. Epub 2020 Apr 5. PubMed 32219885 ↗
  • Mizumoto K, Kagaya K, Zarebski A, Chowell G. Estimating the asymptomatic proportion of coronavirus disease 2019 (COVID-19) cases on board the Diamond Princess cruise ship, Yokohama, Japan, 2020. Euro Surveill. 2020 Mar;25(10):2000180. doi: 10.2807/1560-7917.ES.2020.25.10.2000180. Erratum In: Euro Surveill. 2020 Jun;25(22). doi: 10.2807/1560-7917.ES.2020.25.22.20200604c. PubMed 32183930 ↗
  • Zhao J, Yuan Q, Wang H, Liu W, Liao X, Su Y, Wang X, Yuan J, Li T, Li J, Qian S, Hong C, Wang F, Liu Y, Wang Z, He Q, Li Z, He B, Zhang T, Fu Y, Ge S, Liu L, Zhang J, Xia N, Zhang Z. Antibody Responses to SARS-CoV-2 in Patients With Novel Coronavirus Disease 2019. Clin Infect Dis. 2020 Nov 19;71(16):2027-2034. doi: 10.1093/cid/ciaa344. PubMed 32221519 ↗
  • Elbe S, Buckland-Merrett G. Data, disease and diplomacy: GISAID's innovative contribution to global health. Glob Chall. 2017 Jan 10;1(1):33-46. doi: 10.1002/gch2.1018. eCollection 2017 Jan. PubMed 31565258 ↗
  • Li Q, Guan X, Wu P, Wang X, Zhou L, Tong Y, Ren R, Leung KSM, Lau EHY, Wong JY, Xing X, Xiang N, Wu Y, Li C, Chen Q, Li D, Liu T, Zhao J, Liu M, Tu W, Chen C, Jin L, Yang R, Wang Q, Zhou S, Wang R, Liu H, Luo Y, Liu Y, Shao G, Li H, Tao Z, Yang Y, Deng Z, Liu B, Ma Z, Zhang Y, Shi G, Lam TTY, Wu JT, Gao GF, Cowling BJ, Yang B, Leung GM, Feng Z. Early Transmission Dynamics in Wuhan, China, of Novel Coronavirus-Infected Pneumonia. N Engl J Med. 2020 Mar 26;382(13):1199-1207. doi: 10.1056/NEJMoa2001316. Epub 2020 Jan 29. PubMed 31995857 ↗
  • Hu Z, Song C, Xu C, Jin G, Chen Y, Xu X, Ma H, Chen W, Lin Y, Zheng Y, Wang J, Hu Z, Yi Y, Shen H. Clinical characteristics of 24 asymptomatic infections with COVID-19 screened among close contacts in Nanjing, China. Sci China Life Sci. 2020 May;63(5):706-711. doi: 10.1007/s11427-020-1661-4. Epub 2020 Mar 4. PubMed 32146694 ↗
  • Bai Y, Yao L, Wei T, Tian F, Jin DY, Chen L, Wang M. Presumed Asymptomatic Carrier Transmission of COVID-19. JAMA. 2020 Apr 14;323(14):1406-1407. doi: 10.1001/jama.2020.2565. PubMed 32083643 ↗
  • Guo L, Ren L, Yang S, Xiao M, Chang D, Yang F, Dela Cruz CS, Wang Y, Wu C, Xiao Y, Zhang L, Han L, Dang S, Xu Y, Yang QW, Xu SY, Zhu HD, Xu YC, Jin Q, Sharma L, Wang L, Wang J. Profiling Early Humoral Response to Diagnose Novel Coronavirus Disease (COVID-19). Clin Infect Dis. 2020 Jul 28;71(15):778-785. doi: 10.1093/cid/ciaa310. PubMed 32198501 ↗

Individual participant data

Plan to share: No

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 28, 2020, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT04387890
Lead sponsor
Hospital Italiano de Buenos Aires
Collaborators
Roche Pharma AG
Responsible party
Diego Hernan Giunta, PhD, MPH, MD (MD, MPH, University SoTL, PhD, Hospital Italiano de Buenos Aires) — Principal investigator
First posted
May 14, 2020
Start date
Jun 1, 2020 (estimated)
Primary completion
Aug 31, 2020 (estimated)
Completion
Aug 31, 2020 (estimated)
Last update
May 28, 2020

Study contacts

Ines Staneloni, MD
Contact
maria.staneloni@hospitalitaliano.org.ar
+54 011 4959 0200
Cristina Elizondo, MD
Contact
cristina.elizondo@hospitalitaliano.org.ar
Leticia Peroni, MD
principal investigator · HIBA
Vanina Stanek, MD
principal investigator · HIBA
Diego Sanchez Thomas, MD
principal investigator · HIBA

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is status unknown, as verified in May 2020. You cannot join it, but the record below documents what was studied.

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