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Clinical Trial Summary

The aim of the study was to assess the inflammatory status at the presumed peak of the inflammatory phase in non-critically ill patients requiring admission for COVID-19. Patients admitted with COVID-19 from March 27th to May 3rd, 2020 were prospectively enrolled. All patients had an initial chest CT-scan for diagnosis on admission and a second chest CT-scan for follow-up concomitant with a FDG PET/CT between day 6 and day 14 after the onset of symptoms.


Clinical Trial Description

[18F]-2-fluoro-2-deoxy-D-glucose PET/CT (FDG PET/CT) is a sensitive and quantitative technic for detecting inflammatory process. Glucose uptake is correlated with increased anaerobic glycolysis seen in activated inflammatory cells such as monocytes, lymphocytes and granulocytes.

The aim of the study was to assess the inflammatory status at the presumed peak of the inflammatory phase in non-critically ill patients requiring admission for COVID-19.

Patients were included if COVID-19 was confirmed according to the WHO guidance (11) by a positive result of RT-PCR assay of nasal and pharyngeal swabs, if they were hospitalized during the time period from day 6 to day 14 of the onset of symptoms, and if their initial (on admission) chest CT-scan presented ground-glass opacities (GGO) or consolidation.

Group of 13 consecutive patients prospectively enrolled. All patients had an initial chest CT-scan for diagnosis on admission and a second chest CT-scan for follow-up concomitant with a FDG PET/CT between day 6 and day 14 after the onset of symptoms.

Based on the changes between the two chest CT, patients were classified as follows:

- CT worsening: increase of CT abnormalities extent > 20% or additional GGO or consolidation. Conversion of GGO into consolidation was not considered as additional finding.

- CT stability: changes of CT abnormalities extent ≤ 20% without additional GGO or consolidation.

- CT improvement: decrease of CT abnormalities extent > 20% without additional GGO or consolidation.

Based on FDG PET/CT imaging, patients' profiles were classified as follows:

- Inflammatory: lungs hypermetabolic volume ≥ 50 ml and / or SUVmax ≥ 7

- Low inflammatory: lungs hypermetabolic volume < 50 ml and / or SUVmax< 7 Patients' short-term clinical outcome was classified as follows: worsening, stability, improvement. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT04441489
Study type Observational
Source Centre Hospitalier Princesse Grace
Contact
Status Completed
Phase
Start date March 27, 2020
Completion date May 27, 2020

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