Prognostic Factors Keeping Track for COVID-19 Pneumonia (NIKE_C19)

May 13, 2020 updated by: Geltrude Mingrone, Catholic University of the Sacred Heart

Time of Recovery and Prognostic Factors of COVID-19 Pneumonia

It has been reported that nearly half of the patients who are hospitalized for Covid-19 pneumonia have on admission old age or comorbidities.

In particular, hypertension was present in 30% of the cases, diabetes in 19%, coronary heart disease in 8% and chronic obstructive lung disease in 3% of the patients.

Amazingly, in the two major studies published in the Lancet (Zhou F et al Lancet 2020) and in the New England Journal of Medicine (Guan W et al 2020), the weight of the subjects as well their body mass index (BMI) were omitted. However, obesity, alone or in association with diabetes, can be a major predisposition factor for Covid-19 infection.

The primary end-point of our prospective, observational study is to assess the recovery rate in patients with diagnosis of Covid-19 pneumonia. Among the other secondary end-points, we intend to find the predictors of the time to clinical improvement or hospital discharge in patients affected by Covid-19 pneumonia.

Study Overview

Detailed Description

It has been reported that nearly half of the patients who are hospitalized for Covid-19 pneumonia have on admission old age or comorbidities.

In particular, hypertension was present in 30% of the cases, diabetes in 19%, coronary heart disease in 8% and chronic obstructive lung disease in 3% of the patients.

Amazingly, in the two major studies published in the Lancet and in the New England Journal of Medicine, the weight of the subjects as well their body mass index (BMI) were omitted. However, obesity, alone or in association with diabetes, can be a major predisposition factor for Covid-19 infection.

Obesity is associated with a systemic low-grade inflammation state with increase circulating levels on many pro-inflammatory cytokines, such as IL-1β and IL-6 .

Belonging to the innate immune system but sharing characteristics with the adaptive immunity, natural killer (NK) cells are activated in the white adipose tissue of subjects with obesity where they proliferate and trigger M1 macrophage accumulation.

NK cells are the first line of defense against viral infections. They mediate cytolysis or apoptosis of virus-infected cells. Moreover, NK cells release pro-inflammatory cytokines with antiviral activity.

Not only NK cells frequency is reduced in subjects with obesity but also their cytotoxic capabilities are reduced.

A lower NK cell activity is also present in subjects with type 2 diabetes .Therefore, subjects with obesity and/or type 2 diabetes should have an enhanced susceptibility to viral infections.

It has been shown that hypertension is associated with Covid19 infection in 24-30% of the cases while diabetes was present in 12% to 22% of the patients.

It is now recognized that lipids perform numerous indispensable cellular functions and some of them are involved in the activation of the immune active cells. In addition, lipids are involved in multiple steps in the virus replication cycle, and a recent article showed how metabolic remodelling of host lipids is significantly associated with the propagation of the human-pathogenic coronavirus.

Lipids show both pro-inflammatory and anti-inflammatory activities and interact with the immune response through the activation of lipid-reactive T cells. Ceramides (Cer), phospholipid or sphingolipid, but also amino acids and free fatty acids (FFA), activate the pro-inflammatory pathways resulting in the activation of toll like receptor-4 (TLR-4) and Lysophosphatidylcholines (LPC) that play a role in cell proliferation and activation of T-cells.

The platelet-activating factor, (also known as PAF, PAF-acether or AGEPC, i.e. acetyl-glyceryl-ether-phosphorylcholine), can also be involved. PAF is a potent phospholipid activator and mediator of many leukocyte functions, platelet aggregation and degranulation, inflammation, and anaphylaxis. Moreover, it is an important mediator of bronchoconstriction.

We hypothesize that several lipids may serve as biomarkers of patients who will develop a more severe reaction to the virus. Measurement of plasma lipidomic profile will help in finding subjects more at risk to severe pulmonary disease and in helping to target treatment strategy.

The primary end-point of our prospective, observational study is to assess the recovery rate in patients with diagnosis of Covid-19 pneumonia. Among the other secondary end-points, we intend to find the predictors of the time to clinical improvement or hospital discharge in patients affected by Covid-19 pneumonia.

Clinical improvement is defined as the reduction in severity of Covid-19 pneumonia expressed as the transition from a higher severity to a less severity condition. The possible outcomes are 1. Death; 2. hospitalization, requiring extracorporeal membrane oxygenation and/or invasive mechanical ventilation; 3. hospitalization, requiring nasal high-flow oxygen therapy and/or noninvasive mechanical ventilation; 4. hospitalization, requiring supplemental oxygen; 5. hospital discharge.

Secondary endpoints will include liver, kidney or multiorgan failure, cardiac failure, the efficacy of different pharmaceutical treatment against Covid-19 and the development of predictors and biomarkers of the severity of Covid-19 infection.

Methods Before starting the study, the protocol will be submitted to and approved by the local Ethical Committees at the Fondazione Policlinico Universitario A. Gemelli IRCCS, Catholic University, Rome, Italy. Before enrollment each subject will sign the informed consent.

Inclusion criteria: hospitalized subjects of both sexes aged 18 years or older with diagnosis of pneumonia, confirmed by chest imaging and oxygen saturation (SaO2) ≤ 94% in ambient air, Covid-19 test positive, given informed consent to data collection from the patient or from the patient's legal representative if the patient is too unwell to provide consent.

Exclusion criteria: age lower than 18 years, pregnancy or breast-feeding. Nasopharyngeal swab samples will be taken for quantitative real-time polymerase chain reaction to make diagnosis of Covid19 (2 repeated tests).

Data collected include time of symptoms (cough, fever, dyspnea, conjunctivitis, diarrhea, asthenia, arthralgia) age, sex, height, weight, education, alcohol and smoking habits, morbidities, plasma glucose, creatinine, transaminases, γ-GT, total cholesterol, HDL-cholesterol, triglycerides, complete blood count, D-dimer, lactic acid dehydrogenase (LDH), high-sensitivity C-reactive protein (hs-CRP), creatinkinase (CK), ferritin, albumin, HbA1c, chest X rays, chest CT scan, therapy for pneumonia, other treatments including anti-hypertensive and anti-hyperglycemic agents, body temperature, blood pressure, and oxygen flow rate or other types of oxygen treatment.

Five ml of plasma divided in aliquots of 1 ml each will be also obtained and stored at -80°C in anonymized way for future analysis, including third parties.

Primary end-point The primary end-point of the study is to compare the mean recovery rate in patients with diagnosis of Covid-19 pneumonia, who present with complications at the time of hospital admission (such as diabetes, obesity, cardiovascular disease, hypertension or respiratory failure), with the mean recovery rate in patients without any of the above-mentioned complications.

Secondary end-points

A secondary end-point of the study is the comparison of the survival curves (times to improvement) in the two groups (patients with and without complications) and among patients presenting with different types of complications:

  1. Hypertension
  2. Obesity and/or type 2 diabetes
  3. Cardiovascular disease
  4. Chronic obstructive lung disease
  5. None of the above diseases Other endpoints are liver, kidney or multiorgan failure, cardiac failure, the efficacy of different pharmaceutical treatment against Covid-19 and the development of predictors and biomarkers of the severity of Covid-19 infection.

Sample size The sample size computation (20) is performed under the following hypotheses: the rate of recovery for patients without complications is supposed to be 98%; the average rate of recovery for patients with one of the following complications: diabetes, obesity, cardiovascular disease, hypertension or chronic respiratory failure, is supposed to be 88%. Moreover, it is supposed that the ratio between the sizes of the two groups is k=Nc/Nwc = 1, under the assumption that 50% of patients with Covid-19 pneumonia have one of the above-mentioned complications. We are, in fact, including overweight and obesity. To reach a power of 0.80, with a ratio k of 1, the probabilities of improvement equal to pc = 0.88 and pwc =0.98 and with an expected difference rates of 0.10, the sample size required is 198 patients if α is equal to 0.05.

Statistics The association between recovery and patient groups will be tested by means of a Fisher exact test. A Cox Proportional-Hazard regression will be used to compare survival curves (times to improvement) among the studied groups by correcting for the administered therapy and for all the quantitative collected variables. Quantitative variables, measured at hospital admission, will be compared among groups using ANOVA. In univariable analyses, categorical variables, as gender, education, alcohol consumption and smoke habits will be analysed by means of a Chi-Squared test to study their association with the recovery, while a logistic regression model will be used to test possible quantitative predictors of recovery. A multivariable logistic model, with a stepwise selection procedure, will be then used to test all the variables that are significant in a univariable analysis.

Study Type

Observational

Enrollment (Actual)

198

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Roma, Italy
        • Fondazione Policlinico Universitario A. Gemelli IRCCS

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

16 years to 98 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Subjects hospitalized for Covid19 pneumonia

Description

Inclusion Criteria:

diagnosis of pneumonia; Covid-19 test positive; hospitalized subjects; both sexes aged; given informed consent.

Exclusion Criteria:

age lower than 18 years; pregnancy; breast-feeding.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Case-Control
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Covid19 pneumonia with comorbidities

Patients with pneumonia from Covid 19 with at least one of the following comorbidities:

  1. Hypertension
  2. Obesity and/or type 2 diabetes
  3. Cardiovascular disease
  4. Chronic obstructive lung disease
Covid2 pneumonia without comorbidities
Without any of the following comorbidities

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
rate of recovery
Time Frame: 3 weeks
mean rate of recovery in patients with diagnosis of Covid-19 pneumonia, who present with complications at the time of hospital admission (such as diabetes, obesity, cardiovascular disease, hypertension or respiratory failure), with the mean recovery rate in patients without any of the above-mentioned complications.
3 weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
time to improvement
Time Frame: 3 weeks
comparison of the survival curves (times to improvement) in the two groups (patients with and without complications) and among patients presenting with different types of complications
3 weeks
efficacy of treatments
Time Frame: 3 weeks
the efficacy of different pharmaceutical treatment against Covid-19
3 weeks
organ failure
Time Frame: 3 weeks
liver, kidney or multiorgan failure, cardiac failure
3 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Principal Investigator: Geltrude Mingrone, MD PhD, Fondazione Policlinico Universitario A. Gemelli, IRCCS

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

March 31, 2020

Primary Completion (Actual)

May 7, 2020

Study Completion (Actual)

May 7, 2020

Study Registration Dates

First Submitted

March 25, 2020

First Submitted That Met QC Criteria

March 25, 2020

First Posted (Actual)

March 27, 2020

Study Record Updates

Last Update Posted (Actual)

May 14, 2020

Last Update Submitted That Met QC Criteria

May 13, 2020

Last Verified

May 1, 2020

More Information

Terms related to this study

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Cardiovascular Diseases

3
Subscribe