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RecruitingNCT04549831GEN-COVIDUpdated Nov 4, 2022

Genetic Bases of COVID-19 Clinical Variability

An observational study in COVID-19, sponsored by University of Siena. Recruiting at 1 site in Italy. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2022-11-04.

Sponsored by University of Siena · Observational

From the registry’s dates

  • Primary completion was expected by Dec 2022, 3 years 9 months ago, but the record still lists the study as recruiting.
  • Started Apr 2020; still recruiting 6 years 5 months later.
Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
2,000
Ages
18 Years and older
Sex
All
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Study summary

GEN-COVID multicenter study aims to identify the genetic variants of the host genome responsible for the clinical variability of patients with COVID-19. This variability to date is only partially related to the age and comorbidities of patients. The primary objective of the study is therefore to identify genetic variants associated with the severity of the disease, while the secondary objective consists in the identification of variants associated with longitudinal disease trajectories.

This is a laboratory study that involves the conduct of genetic investigations, including whole exome sequencing and genome wide association studies, on human biological material from patients affected by COVID-19.

Clinical information useful to describe the level of disease severity will be also collected for each enrolled patient.

A total of at least 2,000 COVID-19 patients is expected to be included.

Read the detailed description

The outbreak of the coronavirus disease 2019 (COVID-19), the Severe Acute Respiratory Syndrome caused by SARS-CoV-2, that first appeared in December 2019 in Wuhan, Huanan, Hubei Province of China, has resulted in millions of cases worldwide within a few short months, and rapidly evolving into a real pandemic. The COVID-19 pandemic represents an enormous challenge to the world's healthcare systems. Among the European countries, Italy was the first to experience the epidemic wave of SARS-CoV-2 infection, accompanied by a severe clinical picture and a mortality rate reaching 14%.

The disease is characterized by a highly heterogeneous phenotypic response to SARS-CoV-2 infection, with the large majority of infected individuals having only mild or even no symptoms. However, the severe cases can rapidly evolve towards a critical respiratory distress syndrome and multiple organ failure. The symptoms of COVID-19 range from fever, cough, sore throat, congestion, and fatigue to shortness of breath, hemoptysis, pneumonia followed by respiratory disorders and septic shocks.

The GEN-COVID is a multicentre academic observational study designed to collect and systematize biological samples and clinical data across multiple hospitals and healthcare facilities in Italy with the purpose of deriving patient-level phenotypic and genotypic data. The project aims to identify the genetic determinants of COVID-19 clinical variability studying host genetics. Genetic analyses will include Genome Wide Association Studies, performed by the Institute of Molecular Medicine in Finland (FIMM), and Whole Exome Sequencing (WES) performed by the University of Siena. SARS-CoV-2 infected individuals (swab virus PCR-positive) showing clinical different severity will be collected. In particular enrolled subjects will include only adults (subjects with age higher or equal to 18 years) with the following clinical status types: asymptomatic individuals, home care patients with mild symptoms and hospitalized patients (i-those requiring invasive ventilation; ii-those requiring non-invasive ventilation i.e. CPAP and BiPAP, and high-flows oxygen therapy; iii- those requiring conventional oxygen therapy, and iv-those not requiring oxygen therapy).

Funding. MIUR project "Dipartimenti di Eccellenza 2018-2020" to Department of Medical Biotechnologies University of Siena, Italy; Private donors for COVID research (Italian D.L. n.18 March 17, 2020).

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Conditions studied

  • COVID-19

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Keywords

  • COVID-19
  • SARS-CoV-2
  • Host Genetics
  • Genetic susceptibility
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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 2,000 is above the median of 261 across 3,136 observational studies indexed under COVID-19.

Browse COVID-19 studies →

Lead sponsor

University of Siena is the lead sponsor of 65 studies on the registry; 15 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
No
Sampling method
Non-probability sample

Study population

Hospitalized patients, outpatients, asymptomatic individuals

Inclusion criteria

  • Age > or equal to 18
  • SARS-CoV-2 PCR positive on swab

Exclusion criteria

Exclusion Criteria:

  • none
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Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
2,000 participants (estimated)
Patient registry
No
Biospecimen retention
Samples with dna

Groups and cohorts

  • SARS-CoV-2 PCR positive individuals

    Adult (\> o equal to 18 years) SARS-CoV-2 PCR positive individuals with different clinical outcome: from asymptomatic to severely affected COVID-19 patients.

    Genetic: Massive parallel sequencing of host genome

Interventions

  • GeneticMassive parallel sequencing of host genome

    Massive parallel sequencing and genotyping of host genome of individuals infected with SARS-CoV-2 and showing different clinical outcomes from asymptomatic to severely affected patients in order to identify the genetic determinants of severe COVID-19 and the genetic protective factors.

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What researchers measure

Primary outcomes

  1. To identify the genetic determinants of COVID-19 severity

    Identification of one or more candidate gene(s) responsible for the severe outcome and subsequent use of it/them for prognostic purposes and preventive treatment and/or care.

    Time frame: 6 years

Secondary outcomes

  1. To identify the genetic determinants of COVID-19 clinical trajectories.

    Identification of candidate gene(s) responsible for the COVID-19 clinical trajectories.

    Time frame: 6 years

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Study locations

1 of 1 sites recruiting
  • University of Siena
    Siena, 53100, Italy
    • Alessandra Renieri, MD, PhD · Contact · alessandra.renieri@unisi.it · 00390577233303
    • Francesca Mari, MD, PhD · Principal investigator
    Recruiting
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References and documents

Publications

  • Zhu N, Zhang D, Wang W, Li X, Yang B, Song J, Zhao X, Huang B, Shi W, Lu R, Niu P, Zhan F, Ma X, Wang D, Xu W, Wu G, Gao GF, Tan W; China Novel Coronavirus Investigating and Research Team. A Novel Coronavirus from Patients with Pneumonia in China, 2019. N Engl J Med. 2020 Feb 20;382(8):727-733. doi: 10.1056/NEJMoa2001017. Epub 2020 Jan 24. PubMed 31978945 ↗
  • Wu Z, McGoogan JM. Characteristics of and Important Lessons From the Coronavirus Disease 2019 (COVID-19) Outbreak in China: Summary of a Report of 72 314 Cases From the Chinese Center for Disease Control and Prevention. JAMA. 2020 Apr 7;323(13):1239-1242. doi: 10.1001/jama.2020.2648. No abstract available. PubMed 32091533 ↗
  • Fallerini C, Daga S, Mantovani S, Benetti E, Picchiotti N, Francisci D, Paciosi F, Schiaroli E, Baldassarri M, Fava F, Palmieri M, Ludovisi S, Castelli F, Quiros-Roldan E, Vaghi M, Rusconi S, Siano M, Bandini M, Spiga O, Capitani K, Furini S, Mari F; GEN-COVID Multicenter Study; Renieri A, Mondelli MU, Frullanti E. Association of Toll-like receptor 7 variants with life-threatening COVID-19 disease in males: findings from a nested case-control study. Elife. 2021 Mar 2;10:e67569. doi: 10.7554/eLife.67569. PubMed 33650967 ↗

Individual participant data

Plan to share: Yes — Relevant information coming from the genetic results of the study will be made available to the scientific community through the Network of Italian Genomes (NIG)

Supporting information: Study protocol, Sap, Icf, Csr

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 4, 2022, 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
NCT04549831
Lead sponsor
University of Siena
Collaborators
Fondazione IRCCS Policlinico San Matteo di Pavia, Ospedale San Donato, Arezzo, Ospedale della Misericordia, Azienda Ospedaliera Ospedale Maggiore di Crema, University of Modena and Reggio Emilia, ASST Fatebenefratelli Sacco, Azienda Ospedaliera di Perugia, Ospedale dell'Angelo, Venezia-Mestre, Azienda Ulss 2 Marca Trevigiana, Cardarelli Hospital, Azienda Ospedaliera dei Colli, IRCCS Azienda Ospedaliera Universitaria San Martino - IST Istituto Nazionale per la Ricerca sul Cancro, Genoa, Italy, Istituto Giannina Gaslini, Istituti Ospitalieri di Cremona, IRCSS Lazzaro Spallanzani, Roma, ASST Santi Paolo e Carlo, ASST Valtellina e Alto Lario, Azienda USL Toscana Sud Est, ULSS1 Dolomiti, Belluno, Asst Degli Spedali Civili Di Brescia, IRCCS Casa Sollievo della Sofferenza, San Giovanni Rotondo, Fondazione Policlinico Universitario Agostino Gemelli IRCCS, Ospedale Luigi Curto, Polla, Istituto Auxologico Italiano, CEINGE Biotecnologie Avanzate, Napoli
Responsible party
Francesca Mari (Principal Investigator, Azienda Ospedaliera Universitaria Senese) — Principal investigator
First posted
Sep 16, 2020
Start date
Apr 8, 2020
Primary completion
Dec 31, 2022 (estimated)
Completion
Apr 8, 2026 (estimated)
Last update
Nov 4, 2022

Study contacts

Alessandra Renieri, MD, PhD
Contact
alessandra.renieri@unisi.it
00390577233303
Francesca Mari, MD, PhD
principal investigator · University of Siena

Oversight

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

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