- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04163705
Immune Profile of Patients With Sepsis (IPSEPSIS)
Immune Profile of Patients With Positive Blood Cultures and Multiple Organ Dysfunctions
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Sepsis is one of the leading causes of death in patients admitted to intensive care. It is characterized by being an exaggerated and deregulated inflammatory response triggered by an infection. Although inflammation affects the compartmentalization of the infection, the activation of the immune system in sepsis has a systemic problem, which sometimes affects the organs distant from the site of infection. Within this context, two processes are recognized, which can often coexist: the pro-inflammatory response and the anti-inflammatory response. While it is assumed that the proinflammatory response may favor the development of multiple organ failure, sepsis-induced immunosuppression would favor a new infection, especially of endogenous and intranosocomial germs, mortality increases. The pro-anti-inflammatory nature of sepsis (if so can be defined) depends on a multitude of factors: the type of infection, personal history, genetic conditions, associated diseases, environmental factors, the use of immunosuppressive medications and nutrition. state, among others. Recent studies found that the immune response profile differs depending on the type of infection (Gram negative or Gram positive). Defining the predominant immune condition is not a simple task. Here there are no commonly used clinical variables that define the immune status, except for neutrophil counts.
Objetive:
- Define whether there are differences in the immunological profile between patients with sepsis and positive blood cultures by Gram negative and Gram positive.
- Identify easily accessible clinical and / or laboratory patterns that can predict the predominant immune character.
Design: The study was approved by the Scientific and Ethics committee of the institution. Informed consent will be requested.
Patients with severe sepsis and positive blood cultures will be included prospectively, within 24 hours of diagnosis of sepsis.
Consider severe sepsis to life-threatening organic dysfunction caused by a deregulated host response to infection. This concept includes at least a score of the SOFA (sequential evaluation of organic insufficiency) scale equal to or greater than 2 points The presence of one or more positive samples will be considered positive blood cultures.
Patients with severe sepsis will be enrolled prospectively and consecutively. Some of the blood used for blood culture samples will be processed for the study (sample 0). The plasma will be stored at -80 ° for later analysis. A routine clinical and laboratory database will be completed.
Only patients who have positive blood cultures will be randomized according to their result in: sepsis by Gram positive or Gram negative.
Patients with severe sepsis but with negative blood cultures will be considered a control group. In patients with positive blood cultures, new blood samples will be taken between days 3 to 5 of sample 0 to define the evolution of the pro and anti-inflammatory response.
Minimum 12 patients per group will be included. The level of proinflammatory cytokines (TNF alpha and IL 1) and anti-inflammatory (IL10 and IL1 receptor) will be measured by ELISA method. Finally, the data will be analyzed and the differences between patients with Gram-positive and Gram-negative infections will be established.
Primary Outcome Measure:
Measurement of the pro-inflammatory and anti-inflammatory response in patients with severe sepsis and positive blood cultures
Study Type
Enrollment (Anticipated)
Contacts and Locations
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria: severe sepsis -
Exclusion Criteria:
VIH immunosuppression Autoimmune disease Neoplasm Pregnant women Cirrhosis Bone Marrow Disease Malnutrition.
-
Study Plan
How is the study designed?
Design Details
- Observational Models: Cohort
- Time Perspectives: Prospective
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Gram negative
The presence of one or more positive samples will be considered positive blood cultures. Patients with severe sepsis will be enrolled prospectively and consecutively. Some of the blood used for blood culture samples will be processed for the study (sample 0). The plasma will be stored at -80 ° for later analysis. A routine clinical and laboratory database will be completed. Only patients who have positive blood cultures will be randomized according to their result in: sepsis by Gram positive or Gram negative. |
Routine Laboratory Analysis
|
Gram positive
The presence of one or more positive samples will be considered positive blood cultures. Patients with severe sepsis will be enrolled prospectively and consecutively. Some of the blood used for blood culture samples will be processed for the study (sample 0). The plasma will be stored at -80 ° for later analysis. A routine clinical and laboratory database will be completed. Only patients who have positive blood cultures will be randomized according to their result in: sepsis by Gram positive or Gram negative. |
Routine Laboratory Analysis
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Comparison of the proinflammatory response.
Time Frame: Six months
|
Plasma level comparison of: TNF-alpha, IL-6 and IL-1 between both groups, by flow cytometry.
|
Six months
|
Comparison of the anti-inflammatory response
Time Frame: Six months
|
Plasma level comparison of: TNF-alpha receptor, INF-gamma and IL-10 between both groups, by flow cytometry.
|
Six months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Mortality comparison
Time Frame: Six months
|
Mortality between both groups will be compared for the 28th day of admission to the protocol.
|
Six months
|
SOFA score comparison
Time Frame: Six months
|
Multiple organ dysfunction will be measured with the SOFA score at the time of admission to the protocol and between days 3 to 5. The severity score will be compared between groups.
|
Six months
|
Collaborators and Investigators
Sponsor
Publications and helpful links
General Publications
- Annane D, Bellissant E, Cavaillon JM. Septic shock. Lancet. 2005 Jan 1-7;365(9453):63-78. doi: 10.1016/S0140-6736(04)17667-8.
- Dellinger RP, Levy MM, Rhodes A, Annane D, Gerlach H, Opal SM, Sevransky JE, Sprung CL, Douglas IS, Jaeschke R, Osborn TM, Nunnally ME, Townsend SR, Reinhart K, Kleinpell RM, Angus DC, Deutschman CS, Machado FR, Rubenfeld GD, Webb SA, Beale RJ, Vincent JL, Moreno R; Surviving Sepsis Campaign Guidelines Committee including the Pediatric Subgroup. Surviving sepsis campaign: international guidelines for management of severe sepsis and septic shock: 2012. Crit Care Med. 2013 Feb;41(2):580-637. doi: 10.1097/CCM.0b013e31827e83af.
- Gotts JE, Matthay MA. Sepsis: pathophysiology and clinical management. BMJ. 2016 May 23;353:i1585. doi: 10.1136/bmj.i1585.
- Faix JD. Biomarkers of sepsis. Crit Rev Clin Lab Sci. 2013 Jan-Feb;50(1):23-36. doi: 10.3109/10408363.2013.764490.
- Zeni F, Vindimian M, Pain P, Gery P, Tardy B, Bertrand JC. Antiinflammatory and proinflammatory cytokines in patients with severe sepsis. J Infect Dis. 1995 Oct;172(4):1171-2. doi: 10.1093/infdis/172.4.1171. No abstract available.
- Endo S, Inada K, Inoue Y, Kuwata Y, Suzuki M, Yamashita H, Hoshi S, Yoshida M. Two types of septic shock classified by the plasma levels of cytokines and endotoxin. Circ Shock. 1992 Dec;38(4):264-74.
- Minasyan H. Sepsis and septic shock: Pathogenesis and treatment perspectives. J Crit Care. 2017 Aug;40:229-242. doi: 10.1016/j.jcrc.2017.04.015. Epub 2017 Apr 18.
- Guenter CA, Hinshaw LB. Comparison of septic shock due to gram-negative and gram-positive organisms. Proc Soc Exp Biol Med. 1970 Jul;134(3):780-3. doi: 10.3181/00379727-134-34882. No abstract available.
- Janols H, Bergenfelz C, Allaoui R, Larsson AM, Ryden L, Bjornsson S, Janciauskiene S, Wullt M, Bredberg A, Leandersson K. A high frequency of MDSCs in sepsis patients, with the granulocytic subtype dominating in gram-positive cases. J Leukoc Biol. 2014 Nov;96(5):685-93. doi: 10.1189/jlb.5HI0214-074R. Epub 2014 Jun 13.
Study record dates
Study Major Dates
Study Start (Anticipated)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- Hospital El Cruce
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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