Ignite Creation Date:
2024-10-26 @ 3:36 PM
Last Modification Date:
2024-10-26 @ 3:36 PM
Study NCT ID:
NCT06520605
Status:
RECRUITING
Last Update Posted:
None
First Post:
2024-07-20
Brief Title:
Cytomegalovirus Reactivation in ICU Patients Requiring Prolong Mechanical Ventilation
Sponsor:
None
Organization:
None
Study Overview
Official Title:
Cytomegalovirus Reactivation in Non-immunosuppressed Patients Requiring Prolong Mechanical Ventilation
Status:
RECRUITING
Status Verified Date:
2024-07
Last Known Status:
None
Delayed Posting:
No
If Stopped, Why?:
Not Stopped
Has Expanded Access:
No
If Expanded Access, NCT#:
N/A
Has Expanded Access, NCT# Status:
N/A
Acronym:
None
Brief Summary:
Cytomegalovirus CMV is a latent infection virus that is widespread in the population CMV may reactivate under certain circumstances and its hazardous nature has been proven especially in immunosuppressed patients However in recent years some studies have found that CMV reactivation also exists in apparently immunocompetent patients during their critical illness In these non-immunosuppressed patients the presence of sepsis and its immunomodulatory effects may lead to reactivation of dormant viral infections Studies found the incidence of CMV reactivation in up to one-fourth to half of these non-immunosuppressed patients during their critical illness
These studies also documented significantly higher length of ICU stay and mortality in critically ill patients with CMV reactivation CMV reactivation has also been studied in specific critically ill cohorts exhibiting there impact on mortality David S Y Yong et al studied the effect of CMV reactivation on mortality in immunocompetent acute respiratory distress syndrome ARDS patients In a recent study it was found that among cohort of non-immunosuppressed patients with acute respiratory distress syndrome ARDS CMV reactivation occurred in 27 of patients which was associated with overall increased ICU mortality In another study among septic shock cohort 329 patients herpesvirus reactivations were documented in 68 patients without prior immunodeficiency and concluded that reactivations could be independently associated with mortality
However currently no study is available investigating the CMV reactivation and its kinetics during critical illness in non immunocompetent patients requiring prolonged mechanical ventilation In this planned observational study we aim to find out the prevalence of Cytomegalovirus CMV reactivation viral load and its association with the severity of illness in non immunosuppressed ICU patients requiring prolong mechanical ventilation
These studies also documented significantly higher length of ICU stay and mortality in critically ill patients with CMV reactivation CMV reactivation has also been studied in specific critically ill cohorts exhibiting there impact on mortality David S Y Yong et al studied the effect of CMV reactivation on mortality in immunocompetent acute respiratory distress syndrome ARDS patients In a recent study it was found that among cohort of non-immunosuppressed patients with acute respiratory distress syndrome ARDS CMV reactivation occurred in 27 of patients which was associated with overall increased ICU mortality In another study among septic shock cohort 329 patients herpesvirus reactivations were documented in 68 patients without prior immunodeficiency and concluded that reactivations could be independently associated with mortality
However currently no study is available investigating the CMV reactivation and its kinetics during critical illness in non immunocompetent patients requiring prolonged mechanical ventilation In this planned observational study we aim to find out the prevalence of Cytomegalovirus CMV reactivation viral load and its association with the severity of illness in non immunosuppressed ICU patients requiring prolong mechanical ventilation
Detailed Description:
Cytomegalovirus CMV is a latent infection virus that is widespread in the population CMV may reactivate under certain circumstances and its hazardous nature has been proven especially in immunosuppressed patients However several studies have found that CMV reactivation also exists in immunocompetent patients with a critical illness Among those patients the incidence of CMV reactivation which is more than 30 is associated with increased duration of hospital stay and higher mortality
Traditionally critically ill patients have been considered immunocompetent but the presence of sepsis and its immunomodulatory effects may lead to reactivation of dormant viral infections Sepsis due to its immunomodulatory effects may lead to reactivation of CMV due to the release of pro-inflammatory cytokines such as TNF-alpha and IL-1beta which has the ability to activate several transcription factors contributing in the CMV reactivation Clari et al showed that CMV infection in critically ill patients was consistently associated with undetectable IFN-γ T cell responses within the first 2 days of admission to the ICU and that viral load was inversely related to IFN-γ T cell responses Similar results were also found by Venet et al that septic patients display immune system paralysis reduced Th1 cell function increased IL-10 production anti-inflammatory global lymphopenia affecting natural killer cells NK quantitatively and qualitatively related to their interferon production
Studies have documented significantly higher organ failure rates and mortality in critically ill patients with CMV reactivation Phillips Lachance et al performed a systematic review to investigate the association between CMV reactivation and clinical outcomes in immunocompetent critically ill patients In this review twenty-two studies were included CMV reactivation was associated with increased ICU mortality overall mortality duration of mechanical ventilation nosocomial infections ICU length of stay CMV reactivation has also been studied in specific critically ill cohorts exhibiting there impact on mortality David S Y Yong et al studied the effect of CMV reactivation on mortality in immunocompetent acute respiratory distress syndrome ARDS patients Of 399 ARDS patients 68 were CMV seropositive and reactivation occurred in 27 of them which was associated with overall increased ICU mortality In another study among septic shock cohort 329 patients herpesvirus reactivations were documented in 68 patients without prior immunodeficiency and concluded that reactivations could be independently associated with mortality
However currently no study is currently available investigating the CMV reactivation and its kinetics during critical illness in non-immunosuppressed patients requiring prolonged mechanical ventilation In this planned observational study the investigators aimed to find out the prevalence of CMV reactivation viral load and its association with the severity of illness in non-immunosuppressed ICU patients requiring prolong mechanical ventilation
All adult ICU patients requiring prolong mechanical ventilation will be considered for inclusion and will be screened for the presence of Anti CMV IgG antibodies in blood If patient is IgG seropositive and meets inclusion exclusion criteria then they will be included in study and will be followed up for CMV reactivation during their ICU stay on weekly basis till maximum 28-days after the initiation of mechanical ventilation In patients who had CMV reactivation viral load kinetics will be further followed up on weekly basis for the next 3 weeks or ICU discharged whichever comes first Blood samples will be collected in all while tracheal aspirate sample will be collected in whom who had an artificial airway
Traditionally critically ill patients have been considered immunocompetent but the presence of sepsis and its immunomodulatory effects may lead to reactivation of dormant viral infections Sepsis due to its immunomodulatory effects may lead to reactivation of CMV due to the release of pro-inflammatory cytokines such as TNF-alpha and IL-1beta which has the ability to activate several transcription factors contributing in the CMV reactivation Clari et al showed that CMV infection in critically ill patients was consistently associated with undetectable IFN-γ T cell responses within the first 2 days of admission to the ICU and that viral load was inversely related to IFN-γ T cell responses Similar results were also found by Venet et al that septic patients display immune system paralysis reduced Th1 cell function increased IL-10 production anti-inflammatory global lymphopenia affecting natural killer cells NK quantitatively and qualitatively related to their interferon production
Studies have documented significantly higher organ failure rates and mortality in critically ill patients with CMV reactivation Phillips Lachance et al performed a systematic review to investigate the association between CMV reactivation and clinical outcomes in immunocompetent critically ill patients In this review twenty-two studies were included CMV reactivation was associated with increased ICU mortality overall mortality duration of mechanical ventilation nosocomial infections ICU length of stay CMV reactivation has also been studied in specific critically ill cohorts exhibiting there impact on mortality David S Y Yong et al studied the effect of CMV reactivation on mortality in immunocompetent acute respiratory distress syndrome ARDS patients Of 399 ARDS patients 68 were CMV seropositive and reactivation occurred in 27 of them which was associated with overall increased ICU mortality In another study among septic shock cohort 329 patients herpesvirus reactivations were documented in 68 patients without prior immunodeficiency and concluded that reactivations could be independently associated with mortality
However currently no study is currently available investigating the CMV reactivation and its kinetics during critical illness in non-immunosuppressed patients requiring prolonged mechanical ventilation In this planned observational study the investigators aimed to find out the prevalence of CMV reactivation viral load and its association with the severity of illness in non-immunosuppressed ICU patients requiring prolong mechanical ventilation
All adult ICU patients requiring prolong mechanical ventilation will be considered for inclusion and will be screened for the presence of Anti CMV IgG antibodies in blood If patient is IgG seropositive and meets inclusion exclusion criteria then they will be included in study and will be followed up for CMV reactivation during their ICU stay on weekly basis till maximum 28-days after the initiation of mechanical ventilation In patients who had CMV reactivation viral load kinetics will be further followed up on weekly basis for the next 3 weeks or ICU discharged whichever comes first Blood samples will be collected in all while tracheal aspirate sample will be collected in whom who had an artificial airway
Study Oversight
Has Oversight DMC:
None
Is a FDA Regulated Drug?:
None
Is a FDA Regulated Device?:
None
Is an Unapproved Device?:
None
Is a PPSD?:
None
Is a US Export?:
None
Is an FDA AA801 Violation?:
None