Clinical Characteristics and Prognostic Factors of Patients With COVID-19 (Coronavirus Disease 2019)

Sponsor

Savana Research (Other)

Overall Status

Enrolling by invitation

CT.gov ID

NCT04569851

Collaborator

Castilla-La Mancha Health Service (Other)

100,000

Enrollment

Locations

37.9

Anticipated Duration (Months)

50000

Patients Per Site

1318.8

Patients Per Site Per Month

Study Details

Study Description

Brief Summary

This is a multicenter, non-interventional, retrospective study using data captured in the EHRs (Electronic Health Records) of the participating hospital sites to determine factors that predict disease prognosis and outcomes in COVID-19 patients, specifically: Hospitalization/Off-site monitoring, transfer to ICU and/or need for medical mechanical ventilation (both invasive and non- invasive), length of ICU stay, and outcome (cure/ hospital discharge, in-hospital death)

Condition or Disease	Intervention/Treatment	Phase
COVID-19 Infection

Detailed Description

Data captured in the EHRs will be collected from all available departments, including inpatient hospital, outpatient hospital, emergency room, etc. for virtually all types of provided services in each participating site. The study period will be from January 1, 2020 to the most recent data available.

Primary objective To determine factors that predict disease prognosis and outcomes in COVID-19 patients, specifically: Hospitalization/Off-site monitoring, transfer to ICU and/or need for medical mechanical ventilation (both invasive and non- invasive), length of ICU stay, and outcome (cure/ hospital discharge, in-hospital death)
Secondary objectives
To describe the demographic and clinical characteristics of COVID-19 patients
To describe the patient management (treatment and procedures) in the target population
To describe the outcomes of COVID-19 (discharge, hospitalization, transfer to ICU/ mechanical medical ventilation, in-hospital death) in relation to patients' clinical and demographic characteristics, and treatment received
To determine whether the factors that predict COVID-19 prognosis and outcome also apply to other types of pneumonia.
Exploratory objectives One of the goals of this study is to configure the Big Data system to unravel any hidden variable/s (and their associations) that may offer novel clinical insights into COVID-19 management.

Study Design

Study Type:

Observational

Anticipated Enrollment :

100000 participants

Observational Model:

Other

Time Perspective:

Retrospective

Official Title:

Clinical Characteristics and Prognostic Factors of Patients With COVID-19 Using Big Data and Artificial Intelligence Techniques (BigCoviData)

Actual Study Start Date :

Jan 1, 2020

Anticipated Primary Completion Date :

Oct 1, 2022

Anticipated Study Completion Date :

Feb 28, 2023

Outcome Measures

Primary Outcome Measures

Factors that predict disease prognosis and outcomes in COVID-19 patients - Hospitalization [From 1st Jan 2020]
All variables and outcomes will be extracted from the free-text narratives available in patients' EHRs Hospitalization Percentage of hospitalized patients at diagnosis Percentage of hospitalized patients after diagnosis Percentage of non-hospitalized patients Percentage of patients admitted to the ICU Disease outcome: Cure/Hospital Discharge/In-hospital death Percentage of patients who have been discharged
Factors that predict disease prognosis and outcomes in COVID-19 patients - ICU [From 1st Jan 2020]
Transfer to ICU and/or need for medical ventilation Time (in days) from diagnosis to ICU admission Time (in days) from the date of first symptom to ICU admission Time (in days) from hospital admission to ICU admission (in hospitalized patients) Percentage of patients not admitted to the ICU Length of ICU stay Length of ICU stay (mean duration in days across all patients)

Secondary Outcome Measures

The demographic and clinical characteristics of COVID-19 patients [From 1st Jan 2020]
Gender (% of male patients; % of female patients)
The demographic and clinical characteristics of COVID-19 patients-Age at diagnosis [From 1st Jan 2020]
Age (in years) at diagnosis
The demographic and clinical characteristics of COVID-19 patients -Percentage of patients in each age range [From 1st Jan 2020]
Percentage of patients in each age range (<2; 2-4; 5-14; 15-29; 30-39; 40-49; 50-59; 60-69; 70-79; >= 80).
The demographic and clinical characteristics of COVID-19 patients with available PCR (Polymerase Chain Reaction) results [From 1st Jan 2020]
Percentage of patients with available PCR results (Positive; Negative; Unknown) Percentage of patients with available IgG (immunoglobulin G)/IgM (immunoglobulin M) results (Positive; Negative; Unknown) Percentage of patients using Alcohol/Tobacco/Other substances (Yes/No/Former user/Unknown
The demographic and clinical characteristics of COVID-19 patientsTime since first symptom until diagnosis [From 1st Jan 2020]
Time (in days) since first symptom until diagnosis
The demographic and clinical characteristics of COVID-19 patients - Physical examination [From 1st Jan 2020]
Physical examination BMI
The demographic and clinical characteristics of COVID-19 patients - Physical examination of patients who are pregnant [From 1st Jan 2020]
Physical examination Percentage of patients who are pregnant
The demographic and clinical characteristics of COVID-19 patients - Physical examination Temperature [From 1st Jan 2020]
Physical examination Temperature (in degrees Celsius) - Percentage of patients within temperature ranges (in degrees Celsius) (<37, 37-38, >38)
The demographic and clinical characteristics of COVID-19 patients - Physical examination Heart rate (bmp) [From 1st Jan 2020]
Physical examination Heart rate (bmp) - Percentage of patients within low/normal/high ranges of heart rate
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Hematology, Hemoglobin [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Hematology: Hemoglobin (g/dl)
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Hematology, Hemoglobin II [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Hematology: Hemoglobin n(%)
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Hematology, Red Blood Cells [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Hematology: Red Blood Cells (106/µl)
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Hematology, Red Blood Cells II [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Hematology: Red Blood Cells n(%)
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Hematology: Platelet, Leukocyte, Neutrophils, Lymphocytes, Monocytes, Eosinophils, Basophils [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Hematology: Platelet count (103/mm3) Leukocyte count (103/mm3) Neutrophils (103/mm3) Lymphocytes (103/mm3) Monocytes (103/mm3) Eosinophils (103/mm3) Basophils (103/mm3)
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Hematology: Platelet, Leukocyte, Neutrophils, Lymphocytes, Monocytes, Eosinophils, Basophils II [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Hematology: Platelet count n(%) Leukocyte count n(%) Neutrophils n(%) Lymphocytes n(%) Monocytes n(%) Eosinophils n(%) Basophils n(%)
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Hematology- INR (International Normalized Ratio) [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Hematology: INR n(%)
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Hematology- INR II [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Hematology: INR
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Biochemistry: Glucose, Cholesterol, Triglycerides [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Biochemistry: Glucose (mg/dl) Total cholesterol (mg/dl) Triglycerides (mg/dl)
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Biochemistry: Glucose, Cholesterol, Triglycerides II [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Biochemistry: Glucose n(%) Total cholesterol n(%) Triglycerides n(%)
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Biochemistry: Bilirubin [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Biochemistry: Total bilirubin (g/dL)
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Biochemistry: Bilirubin II [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Biochemistry: Total bilirubin n(%)
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Other Values: Creatinine, Glucose [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Other values: Creatinine in urine (mg/dl) Glucose in urine (mg/dl)
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Other Values: Creatinine, Glucose II [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Other values: Creatinine in urine n(%) Glucose in urine n(%)
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Other Values: Procalcitonin [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Other values: Procalcitonin level will be reported" (PCT) ng/mL
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Other test: PH (Potential Hydrogen), O2 Saturation, FIO2 (Fractional Inspired Oxigen), PAFI [Blood pressure of oxygen / inspired fraction of oxygen (PaO2/FiO2)] [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Other tests: pH pH n(%) O2 saturation (%) O2 saturation n(%) FIO2 (%) FIO2 n(%) PAFI (%) PAFI n(%)
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Other test: PH [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Other tests: pH
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Other test: PH II [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Other tests: PH n(%)
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Other test: O2 saturation, FIO2, PAFI [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Other tests: O2 saturation (%) FIO2 (%) PAFI (%)
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Other test: O2 saturation, FIO2, PAFI II [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Other tests: O2 saturation n(%) FIO2 n(%) PAFI n(%)
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Other test: pCO2 (partial pressure of carbon dioxide), pO2 (partial pressure of oxygen) [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Other tests: pCO2 (mmHg) pO2 (mmHg)
The demographic and clinical characteristics of COVID-19 patients - Laboratory values: Other test: pCO2, pO2 II [From 1st Jan 2020]
Physical examination. Laboratory values at diagnosis Other tests: pCO2 n(%) pO2 n(%)
The demographic and clinical characteristics of COVID-19 patients- Comorbidities, Medication, Symptoms [From 1st Jan 2020]
Percentage of patients with family history of selected comorbidities Percentage of patients with existing selected comorbidities at diagnosis: Cardiovascular disease, Hypertension, Ischemic stroke, Heart Disease (Cardiopathy), etc. Percentage of patients with medication use/procedures prior to diagnosis. The following medications/treatments will be considered: ACEI (angiotensin converting enzyme inhibitors), ARB (angiotensin receptor blocker), Diuretics, Beta-blocker, etc. Percentage of patients showing the following signs and symptoms at diagnosis: Cough, Fever, Dyspnoea, Respiratory crackles, Diarrhoea, etc. Percentage of patients showing the following signs and symptoms after diagnosis: Thromboembolic Disorder, Venous thrombosis, Pulmonary thromboembolism, Upper gastrointestinal bleeding, etc.
The patient management (treatment and procedures) in the target population [From 1st Jan 2020]
Percentage of patients assigned to the following procedures after diagnosis: Chest x-ray, Ultrasonography of thorax,Ultrasonography of lung, High resolution computed tomography, Computer tomography of chest, Echocardiogram, EKG Percentage of patients assigned to the following treatments after diagnosis: Oxygen therapy (Oxygen administration by nasal cannula, Oxygen administration by Venturi mask, High concentration oxygen therapy), Prone position, Noninvasive ventilation, Invasive mechanical ventilation,Tracheotomy, Extubation of trachea. Percentage of patients (and mean duration of treatment in days) prescribed with the following pharmacological agents after diagnosis: Lopinavir + Ritonavir, Darunavir + Ritonavir, Darunavir + Cobicistat, IFN (Interferon)- β1b, Chloroquine, Hydroxychloroquine, Antibiotics, Acetylcysteine,Corticosteroids,Selective immunosuppressants, Cyclosporine, Remdesivir, Antithrombotic agents (anticoagulants), Inhibitors of platelet aggregation.
The outcomes of COVID-19 (discharge, hospitalization, transfer to ICU/ mechanical medical ventilation, in-hospital death) in correlation to patients' clinical and demographic characteristics, and treatment received [From 1st Jan 2020]
The outcomes of COVID-19 (discharge, hospitalization, transfer to ICU/ mechanical medical ventilation, in-hospital death) in correlation to patients' clinical and demographic characteristics, and treatment received Percentage of patients with selected comorbidities (see complete list above) at diagnosis in each outcome group (ICU-no ICU; hospitalization-no hospitalization; discharge-no discharge; death-no death) Percentage of patients showing selected sings and symptoms (see complete list above) at diagnosis in each outcome group (ICU-no ICU; hospitalization-no hospitalization; discharge-no discharge; death-no death)

Eligibility Criteria

Criteria

Ages Eligible for Study:

N/A and Older

Sexes Eligible for Study:

All

Accepts Healthy Volunteers:

Inclusion Criteria:

All patients with suspected COVID-19 infection, as captured in the patients' EHRs of the participating sites.

Exclusion Criteria:

Not suspected COVID-10 infection

Contacts and Locations

Locations

	Site	City	State	Country	Postal Code
1	Hospital Universitario de Guadalajara	Guadalajara		Spain
2	Hospital Universitario La Princesa	Madrid		Spain

Sponsors and Collaborators

Savana Research
Castilla-La Mancha Health Service

Investigators

Study Chair: José Luis Izquierdo, MD, PhD, Hospital Universitario de Guadalajara
Study Chair: Joan B Soriano, MD, PhD, Hospital Universitario La Princesa
Study Chair: Julio Ancochea, MD, PhD, Hospital Universitario La Princesa