Investigating the Involvement of ACE and Angiotensinogen Genes' Polymorphism Along With Other Thrombophilic Genotypes in Severe Forms of COVID-19 With/Without Thrombotic Events (iGenes-COVID19)

An estimated 22% of the global population is at an increased risk of a severe form of COVID-19, while one in four coronavirus patients admitted to intensive care unit will develop a pulmonary embolism. A major public health question remains to be investigated: why COVID-19 is mild for some, critically severe for others and why only a percentage of COVID-19 patients develop thrombosis, despite the disease's proven hypercoagulable state? Patients' intrinsic characteristics might be responsible for the deep variety of disease forms.

Our study aims to assess the validity of the hypothesis according to which underlining genetic variations might be responsible for different degrees of severity and thrombotic events risks in the novel coronavirus disease.

Moreover, we suspect that prothrombotic genotypes occuring in the genes that encode angiotensin-converting enzyme (ACE-DEL/INS) and angiotensinogen (AGT M235T) are involved in the unpredictable evolution of COVID-19, both in terms of severity and thrombotic events, due to the strong interactions of SARS-CoV-2 with the renin-angiotensin-aldosterone system (RAAS). Therefore, we also aim to assess the validity of the theory according to which there is a pre-existing atypical modulation of RAAS in COVID-19 patients that develop severe forms and/or thrombosis.

Our hypothesis is based on various observations. Firstly, there is a substantial similarity with a reasonably related condition such as sepsis, for which there is a validated theory stating that thrombophilic mutations affect patients' clinical response. Secondly, racial and ethnic genetic differences are responsible for significant dissimilar thrombotic risks among various nations. Thirdly, an increase in stroke incidence has been reported in young patients with COVID-19, without essential thrombosis risk factors, favoring the idea that a genetic predisposition could contribute to increase the thrombotic and thromboembolic risk. Fourthly, the plasminogen activator inhibitor (PAI)-1 4G/5G inherited mutation was found to be responsible for a thrombotic state causing post-SARS osteonecrosis.

Study Overview

• Status: Unknown
• Conditions: Covid19; Thrombosis; Thrombophilia; Corona Virus Infection; ARDS; Thromboses, Intracranial; Thromboses, Deep Vein; RAAS
• Intervention / Treatment: Genetic: Complete thrombophilic profile testing by multiplex PCR

Detailed Description

The study's protocol will cover the following steps:

• Collected data from COVID-19 patients at admission will include:

• Descriptive general demographic data
• Previous pathologies and thrombosis risk factors
• Routine biological data (the blood routinely collected will also be used for SARS-Cov-2 specific RT-PCR exam)

Complete thrombophilic profile testing by multiplex PCR and reverse hybridization of DNA to assess the presence of prothrombotic genotypes:

• Factor V Leiden
• Factor V 4070 A G (Hr2)
• Factor II G20210A
• Methylenetetrahydrofolate reductase (MTHFR) C677T
• MTHFR A1298C
• Cystathionine β-synthase (CBS) 844ins68
• PAI-1 4G/5G
• Glycoprotein IIIa T1565C (HPA-1a/b)
• ACE-DEL/INS
• Apolipoprotein E (ApoE)
• AGT M235T
• Angiotensin II type 1 receptor (ATR-1) A1166C
• Fibrinogen - 455 G A

• Factor XIII Val34Leu SpO2, respiratory rate, PaO2/FiO2 RAAS components

  • Imagistic procedures (chest X-ray or CT)

    • All patients with a positive SARS-CoV-2 PCR test will be included
    • Patients will be divided into three groups depending on disease severity and the presence of thrombotic state:
  • 1st group includes COVID-19 patients with proved
• venous thrombosis (deep vein thrombosis, pulmonary embolism or venous thrombosis occurring in more atypical places such as in the veins of the brain, liver, kidney, mesenteric vein and the veins of the arms)

• or arterial thrombosis (heart attacks, strokes)

  • 2nd group encompasses asymptomatic patients and those with mild or moderate disease, according to current guidelines, without thrombosis: no symptoms or evidence of lower respiratory disease by clinical assessment or imaging and a SpO2 ≥ 94%

  • 3rd group includes severe disease, according to current guidelines, without thrombosis: respiratory frequency > 30 breaths per minute, SpO2 < 94%, PaO2/FiO2 < 300 mmHg, or lung infiltrates >50%

    • Statistical methods will be employed to check for significant differences between prothrombotic mutations frequency and RAAS components levels for the three groups

• Study Type: Observational
• Enrollment (Anticipated): 60

Contacts and Locations

• Study Contact: Name: Alexandru Burlacu, MD, PhD; Phone Number: 00407444488580; Email: alexandru.burlacu@umfiasi.ro
• Study Contact Backup: Name: Radu Crisan-Dabija, MD, PhD; Email: radu.dabija@umfiasi.ro

Study Locations

• Romania
  • Iasi, Romania, 700503
    • Recruiting
    • University of Medicine and Pharmacy Gr T. Popa Iasi, Romania
    • Contact: Adrian Covic, Professor; Email: accovic@gmail.com
    • Contact: Radu Crisan-Dabija, Lecturer; Email: radu.dabija@umfiasi.ro
    • Principal Investigator: Alexandru Burlacu, Lecturer
    • Principal Investigator: Radu Crisan-Dabija, Lecturer
    • Sub-Investigator: Iolanda Popa, MD, PhD

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 16 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

All patients with COVID-19 and thrmbotic events or, Patients with COVID-19 & no thrombotic events but with a severe form Patients with COVID-19 & no thrombotic events and no or mild symptoms

Description

Inclusion Criteria:

• All hospitalized patients with cough, fever, myalgia - with confirmed COVID-19 infection • All patients with a positive SARS-CoV-2 PCR test

Exclusion Criteria:

• Patient refusal
• Uncertain tests results
• Children

Study Plan

How is the study designed?

Design Details

• Observational Models: Ecologic or Community
• Time Perspectives: Prospective

Number of groups / cohorts

3

Cohorts and Interventions

Group / Cohort	Intervention / Treatment
COVID-19 patients with proved venous thrombosis; 1st group includes COVID-19 patients with proved; venous thrombosis (deep vein thrombosis, pulmonary embolism or venous thrombosis occurring in more atypical places such as in the veins of the brain, liver, kidney, mesenteric vein and the veins of the arms); or arterial thrombosis (heart attacks, strokes)	Genetic: Complete thrombophilic profile testing by multiplex PCR; Complete thrombophilic profile testing by multiplex PCR and reverse hybridization of DNA to assess the presence of prothrombotic genotypes: Factor V Leiden; Factor V 4070 A>G (Hr2); Factor II G20210A; Methylenetetrahydrofolate reductase (MTHFR) C677T; MTHFR A1298C; Cystathionine β-synthase (CBS) 844ins68; PAI-1 4G/5G; Glycoprotein IIIa T1565C (HPA-1a/b); ACE-DEL/INS; Apolipoprotein E (ApoE); AGT M235T; Angiotensin II type 1 receptor (ATR-1) A1166C; Fibrinogen - 455 G>A; Factor XIII Val34Leu
Asymptomatic COVID-19 & those with mild or moderate disease; 2nd group encompasses asymptomatic patients and those with mild or moderate disease, according to current guidelines, without thrombosis: no symptoms or evidence of lower respiratory disease by clinical assessment or imaging and a SpO2 > 94%	Genetic: Complete thrombophilic profile testing by multiplex PCR; Complete thrombophilic profile testing by multiplex PCR and reverse hybridization of DNA to assess the presence of prothrombotic genotypes: Factor V Leiden; Factor V 4070 A>G (Hr2); Factor II G20210A; Methylenetetrahydrofolate reductase (MTHFR) C677T; MTHFR A1298C; Cystathionine β-synthase (CBS) 844ins68; PAI-1 4G/5G; Glycoprotein IIIa T1565C (HPA-1a/b); ACE-DEL/INS; Apolipoprotein E (ApoE); AGT M235T; Angiotensin II type 1 receptor (ATR-1) A1166C; Fibrinogen - 455 G>A; Factor XIII Val34Leu
Severe disease, according to Guidelines, without thrombus; 3rd group includes severe disease, according to current guidelines, without thrombosis: respiratory frequency > 30 breaths per minute, SpO2 < 94%, PaO2/FiO2 < 300 mmHg, or lung infiltrates >50%	Genetic: Complete thrombophilic profile testing by multiplex PCR; Complete thrombophilic profile testing by multiplex PCR and reverse hybridization of DNA to assess the presence of prothrombotic genotypes: Factor V Leiden; Factor V 4070 A>G (Hr2); Factor II G20210A; Methylenetetrahydrofolate reductase (MTHFR) C677T; MTHFR A1298C; Cystathionine β-synthase (CBS) 844ins68; PAI-1 4G/5G; Glycoprotein IIIa T1565C (HPA-1a/b); ACE-DEL/INS; Apolipoprotein E (ApoE); AGT M235T; Angiotensin II type 1 receptor (ATR-1) A1166C; Fibrinogen - 455 G>A; Factor XIII Val34Leu

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of patients with thrombophilic profile alterations	The difference of prothrombotic genotypes frequency between the three groups	One year

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Number of patients with RAAS components alterations	The differences of RAAS components levels between the three groups	One year

Collaborators and Investigators

• Sponsor: Grigore T. Popa University of Medicine and Pharmacy
• Investigators: Study Chair: Adrian Covic, Professor, Gr T Popa University of Medicine and Pharmacy Iasi ROMANIA

Study record dates

Study Major Dates

• Study Start (Actual): August 18, 2020
• Primary Completion (Anticipated): February 17, 2021
• Study Completion (Anticipated): August 18, 2021

Study Registration Dates

• First Submitted: August 18, 2020
• First Submitted That Met QC Criteria: August 18, 2020
• First Posted (Actual): August 19, 2020

Study Record Updates

• Last Update Posted (Actual): August 19, 2020
• Last Update Submitted That Met QC Criteria: August 18, 2020
• Last Verified: August 1, 2020

More Information

Terms related to this study

• Keywords: Covid-19; Thrombosis; Thrombophilia; COVID-19 severity; thrombophylic profile; Renin-angiotensin-aldosterone system alterations
• Additional Relevant MeSH Terms: Cardiovascular Diseases; Vascular Diseases; Cerebrovascular Disorders; Brain Diseases; Central Nervous System Diseases; Nervous System Diseases; Coronaviridae Infections; Nidovirales Infections; RNA Virus Infections; Virus Diseases; Infections; Respiratory Tract Infections; Respiratory Tract Diseases; Pneumonia, Viral; Pneumonia; Lung Diseases; Hematologic Diseases; Embolism and Thrombosis; Intracranial Embolism and Thrombosis; Thromboembolism; COVID-19; Coronavirus Infections; Thrombosis; Venous Thrombosis; Thrombophilia; Intracranial Thrombosis
• Other Study ID Numbers: GTP0051

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: Yes
• IPD Sharing Supporting Information Type: Study Protocol; Statistical Analysis Plan (SAP); Informed Consent Form (ICF); Clinical Study Report (CSR)

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No