- ICH GCP
- Registro degli studi clinici negli Stati Uniti
- Sperimentazione clinica NCT04928469
Clinical Impact of COVID-19 by P.1 SARS-CoV-2 Lineage
Clinical Impact of Coronavirus Disease 19 (COVID-19) Caused by P.1 Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) Lineage
Since the first report of the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variant of concern (VOC) P.1 in Manaus, Brazil, a rapid spread of this lineage across the country has been observed. Recent studies indicate that this variant is associated with higher transmissibility; it is not known whether it is associated with clinical severity and higher mortality rates.
This is a retrospective cohort study carried out at Hospital de Clínicas de Porto Alegre. Adult patients aged 18 years or more and 65 years or less who were admitted to the hospital due to symptomatic COVID-19 from June 2020 to May 2021 and had a reverse transcriptase-polymerase chain reaction (RT-PCR) cycle threshold value for either SARS-CoV-2 N1 or N2 target ≤ 25 were eligible to the study. Samples from 86 patients (43 from June 2020 to November 2020 and 43 from February 2021 to May 2021) were sequenced for further evaluation. These dates were defined since the emergence of P.1 lineage in late January.
Clinical data regarding ventilatory support, date of onset of symptoms, laboratory findings and mortality were collected from each patient. This retrospective cohort aims to assess whether the number of days needed for supplementary oxygen either by noninvasive ventilation or high-flow nasal cannula from onset of symptoms differs among patients infected with the P.1 SARS-CoV-2 variant and those infected with other variants.
Panoramica dello studio
Stato
Condizioni
Intervento / Trattamento
Tipo di studio
Iscrizione (Effettivo)
Contatti e Sedi
Luoghi di studio
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RS
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Porto Alegre, RS, Brasile, 90035-903
- Hospital de Clínicas de Porto Alegre
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Criteri di partecipazione
Criteri di ammissibilità
Età idonea allo studio
Accetta volontari sani
Sessi ammissibili allo studio
Metodo di campionamento
Popolazione di studio
Descrizione
Inclusion Criteria:
- Patients aged 18 to 65 years
- Hospital admission due to symptomatic COVID-19
- RT-PCR was collected from June to November 2020 or from February to May 2021
Exclusion Criteria:
- Patients admitted for reasons other than COVID-19
- Asymptomatic patients with positive routine screening with RT-PCR
- Patients transferred from other institutions
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
Coorti e interventi
Gruppo / Coorte |
Intervento / Trattamento |
|---|---|
|
P.1
Patients infected with the P.1 SARS-CoV-2 variant
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Collection of clinical and laboratory data
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Other variants
Patients infected with SARS-CoV-2 variants other than P.1
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Collection of clinical and laboratory data
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Time to Advanced Respiratory Support
Lasso di tempo: 28 days from onset of symptoms
|
Number of days needed for supplementary oxygen either by noninvasive ventilation or high-flow nasal cannula from onset of symptoms.
|
28 days from onset of symptoms
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Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Proportion of patients in each category in the ordinal scale during hospitalization
Lasso di tempo: 28 days from hospital admission
|
Proportion of patients in each category in the ordinal scale during hospitalization.
Ordinal scale levels: 1, patient not hospitalized; 2, hospitalized and not receiving supplemental oxygen; 3, hospitalized and receiving supplemental oxygen; 4, hospitalized and receiving oxygen supplementation administered by a high-flow nasal cannula or noninvasive ventilation; 5, hospitalized and receiving mechanical ventilation or extracorporeal membrane oxygenation; and 6, death.
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28 days from hospital admission
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|
Arterial oxygen partial pressure (PaO2)/ Fractional inspired oxygen (FiO2) evolution during hospitalization
Lasso di tempo: 28 day from hospital admission
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Proportion of patients in each category according to PaO2/FiO2 value: 400-301, 300-201, 200-101, <=100.
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28 day from hospital admission
|
|
28-day Mortality from onset of symptoms
Lasso di tempo: 28 days from onset of symptoms
|
Death for any cause from onset of symptoms
|
28 days from onset of symptoms
|
|
Time to death from onset of symptoms
Lasso di tempo: 28 days from onset of symptoms
|
Number of days from the onset of symptoms to death
|
28 days from onset of symptoms
|
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28-day Mortality from hospital admission
Lasso di tempo: 28 days from hospital admission
|
Death for any cause from hospital admission
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28 days from hospital admission
|
|
Time to death from hospital admission
Lasso di tempo: 28 days from hospital admission
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Number of days from the hospital admission to death
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28 days from hospital admission
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Days alive and free of supplemental oxygen support.
Lasso di tempo: 28 day from hospital admission
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Number of days alive and free of supplemental oxygen support
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28 day from hospital admission
|
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Time to invasive ventilatory support
Lasso di tempo: 28 days from onset of symptoms
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Number of days from the onset of symptoms to mechanical ventilation or Extracorporeal membrane oxygenation (ECMO)
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28 days from onset of symptoms
|
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Need of critical care
Lasso di tempo: 28 days from hospital admission
|
Proportion of patients admitted to Intensive Care Unit
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28 days from hospital admission
|
|
In-hospital mortality
Lasso di tempo: 90 days from hospital admission
|
Death for any cause during hospitalization
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90 days from hospital admission
|
|
Number of thromboembolic event
Lasso di tempo: 28 day from hospital admission
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Number of patients with documented deep venous thrombosis or pulmonary embolism
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28 day from hospital admission
|
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Number of patients requiring renal replacement therapy (RRT)
Lasso di tempo: 28 day from hospital admission
|
Number of patients requiring any form of RRT during hospitalization
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28 day from hospital admission
|
|
Number of patients requiring prone positioning
Lasso di tempo: 28 day from hospital admission
|
Number of patients requiring prone positioning during hospitalization
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28 day from hospital admission
|
Collaboratori e investigatori
Studiare le date dei record
Studia le date principali
Inizio studio (Effettivo)
Completamento primario (Effettivo)
Completamento dello studio (Effettivo)
Date di iscrizione allo studio
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
- 2020-0163
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Dati/documenti di studio
Informazioni su farmaci e dispositivi, documenti di studio
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Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .
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