COVID-19 Respiratory Outcomes Registry

This is a multi-center, observational, and prospective study collecting data on subjects who were hospitalized with hypoxemic respiratory failure associated with COVID-19 or patients who have evidence of an outpatient COVID-19 infection that have been treated with supplemental oxygen.

A total of approximately 300 subjects will be enrolled in the study. Subjects will be enrolled into one of 3 cohorts.

Cohort 1: Inpatient Enrollment: Subjects enrolled while hospitalized for COVID-19, prior to discharge.

Cohort 2: Outpatient Enrollment: Subjects enrolled up to 4 weeks after discharge from hospitalization for COVID-19 or 4 weeks post their outpatient COVID -19 infection.

Cohort 3: Outpatient Enrollment: Subjects enrolled between 6 and 24 weeks after discharge from hospitalization for COVID-19 or 6 and 24 weeks post their outpatient COVID -19 infection. Cohort 3 will be sub-divided into 3a and 3b depending on the timepoint of enrollment.

After signing the Informed Consent Form, the screening visit will be performed. Screening and enrollment can occur at Visit 0 (inpatient) or Visit 1 (outpatient). Following completion of Visit 0 or 1 the subjects' data will be assessed by the investigator to confirm eligibility and a decision will be made if the patient is to be enrolled. If not the reason for non-enrollment will be listed in the trial log.

Each subject will either have a total of 4 or 5 visits, depending on if subjects complete enrollment while still admitted to the hospital (Visit 0) or at Visit 1. At weeks 4, 24, 36, 48, all subjects will complete questionnaires, have physical exams, spirometry test with DLCO, HRCTs, 6MWTs, blood draws, and review of medical history since the previous visit.

The primary analysis of this study will be performed once the last enrolled subject reaches Week 48. At that time, there will be a data-base lock. Unless otherwise noted, Visit 1 is treated as baseline measurement. In addition, for patients enrolled at discharge, a second set of analysis will be performed treating Visit 0 as baseline for the measurements collected at Visit 0.

Aim 1: To identify whether the trajectory of COVID-19 associated respiratory failure results in progressive pulmonary fibrosis with clinical features or biomolecular changes.

Aim 2: To identify biomarkers that may indicate those patients at risk for developing a chronic fibrotic HRCT pattern that may go on to progression.