HSD3B1 Gene Polymorphisms With Outcomes in SARS-CoV-2 Infected Patients
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| ClinicalTrials.gov Identifier: NCT04516850 |
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Recruitment Status :
Not yet recruiting
First Posted : August 18, 2020
Last Update Posted : August 18, 2020
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The study includes 2 sub-projects.
Sub-project 1: The aim is to evaluate the expression of receptors and activating proteases mediating SARS-CoV-2 entry and spreading in the local population of Ticino.
Sub-project 2: The aim is to investigate the association between the HSD3B1 gene variations and outcome of COVID-19 in the local population of Ticino.
| Condition or disease | Intervention/treatment |
|---|---|
| Covid19 | Genetic: Expression of receptors and activating proteases Genetic: Polymorphism of the HSD3B1 |
Sub-project 1:
This is an observational retrospective study that aims to evaluate the expression of receptors and activating proteases mediating SARS-CoV-2 entry and spreading in the local population of Ticino. The level of expression of these factors will be compared between infected and non-infected subjects. The sub-project will examine RNA samples from nasopharyngeal swabs taken from subjects tested for COVID-19.
Sub-project 2:
This is a haplotype- and diplotype-based case-control retrospective study that aims to investigate the association between the HSD3B1 gene variations and outcome of COVID-19 in the local population of Ticino. The gene status of HSD3B1 will be defined and compared between two groups of patients: the patients who experienced a severe SARS-CoV-2 infection (severe pulmonary insufficiency, ICU admission, eventually death) and the group with a mild-moderate COVID-19 disease without pulmonary insufficiency and oxygen need.
| Study Type : | Observational |
| Estimated Enrollment : | 500 participants |
| Observational Model: | Other |
| Time Perspective: | Retrospective |
| Official Title: | An Exploratory Analysis of the Expression of Receptors and Activating Proteases Mediating SARS-CoV-2 Entry and the Association Between HSD3B1 Gene Polymorphisms With Outcomes in SARS-CoV-2 Infected Patients |
| Estimated Study Start Date : | September 1, 2020 |
| Estimated Primary Completion Date : | August 31, 2021 |
| Estimated Study Completion Date : | August 31, 2021 |
| Group/Cohort | Intervention/treatment |
|---|---|
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Patients tested for COVID-19
The nasopharyngeal swabs taken from patients tested for Covid-19 who resulted infected and non-infected will be analyzed to evaluate the expression of receptors and activating proteases mediating SARS-CoV-2.
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Genetic: Expression of receptors and activating proteases
Level of expression of the mRNA of the genes encoding ACE2, TMPRSS2, TMPRSS4 and AR along with reference genes (beta-actin and EPCAM) in nasopharyngeal swabs taken from patients tested for COVID-19 |
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Patients with mild-moderate and severe SARS-CoV-2 infection
Formalin-fixed paraffin will be analysed to determine the association between polymorphism of the HSD3B1 gene and outcomes in COVID-19 affected patients
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Genetic: Polymorphism of the HSD3B1
Formalin-fixed paraffin embedded tissue blocks will be amplified using polymerase chain reaction (PCR) based experiments followed by direct sequencing (Sanger sequencing) |
- Expression of receptors and activating proteases [ Time Frame: 1 year ]Determination of the level of expression of the mRNA genes
- Prevalencen of olymorphisms of the HSD3B1 [ Time Frame: 1 year ]Determination of the prevalence of polymorphisms of the HSD3B1 patients with severe and mild-moderate SARS-CoV-2 infection
- Association of polymorphisms of the HSD3B1 [ Time Frame: 1 year ]Evaluation of the association of polymorphisms of the HSD3B1 with clinico-pathological parameters
Biospecimen Retention: Samples With DNA
Sub-project 1: nasopharyngeal swabs
Sub-project 2: tissue samples
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| Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
| Sexes Eligible for Study: | All |
| Accepts Healthy Volunteers: | No |
| Sampling Method: | Non-Probability Sample |
Sub-project 1
Inclusion Criteria:
- Availability of RNA extracted from nasopharyngeal swabs taken from subjects tested for COVID-19;
- Subject is aged 18 years or over;
- Written informed consent (for SARS-CoV-2 positive patients only; see §5 for further details).
Exclusion Criteria:
- Documented refusal.
Sub-project 2
Inclusion Criteria:
- Female and male hospitalized SARS-CoV-2 patients;
- Patient is aged 18 years or over;
- Availability of archival tissue samples collected at any time before SARS-CoV-2 infection for any clinical reason;
- Clinico-pathological characteristics of the COVID-19 and clinical outcomes recorded in the EOC and Clinica Luganese Moncucco database;
- Written informed consent (see §5 for further details).
Exclusion Criteria:
- Documented refusal.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04516850
| Contact: Ricardo Pereira Mestre, MD | +41 (0)91 811 8446 | ricardo.pereiramestre@eoc.ch |
| Switzerland | |
| Oncology Institute of Southern Switzerland (IOSI) | |
| Bellinzona, Switzerland, 6500 | |
| Contact: Ricardo Pereira Mestre, MD +41 (0)91 811 8446 ricardo.pereiramestre@eoc.ch | |
| Clinica Luganese Moncucco | |
| Lugano, Switzerland, 6900 | |
| Contact: Christian Garzoni, MD 41 (0)91 960 87 12 christian.garzoni@moncucco.ch | |
| Study Chair: | Ricardo Pereira Mestre, MD | Oncology Institute of Southern Switzerland (IOSI) |
| Responsible Party: | Ricardo Pereira Mestre, MD, Oncology Institute of Southern Switzerland |
| ClinicalTrials.gov Identifier: | NCT04516850 |
| Other Study ID Numbers: |
COVID19-GeneExp |
| First Posted: | August 18, 2020 Key Record Dates |
| Last Update Posted: | August 18, 2020 |
| Last Verified: | August 2020 |
| Individual Participant Data (IPD) Sharing Statement: | |
| Plan to Share IPD: | No |
| Studies a U.S. FDA-regulated Drug Product: | No |
| Studies a U.S. FDA-regulated Device Product: | No |
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COVID-19 Respiratory Tract Infections Infections Pneumonia, Viral Pneumonia Virus Diseases |
Coronavirus Infections Coronaviridae Infections Nidovirales Infections RNA Virus Infections Lung Diseases Respiratory Tract Diseases |

