Understanding immune response in septic shock patients

Evaluation of Immunosuppression in Septic Shock: Biomarkers and Pharmacological Restoration

Observational Hospices Civils de Lyon · NCT04067674

This study looks at how the immune system changes over time in patients with septic shock to see if it can help improve future treatments.

Quick facts

Study typeObservational
Enrollment305 (estimated)
Ages18 Years and up
SexAll
SponsorHospices Civils de Lyon Academic / other
Locations1 site (Lyon)
Trial IDNCT04067674 on ClinicalTrials.gov

What this trial studies

This observational study focuses on patients diagnosed with septic shock, a critical condition that significantly impacts immune function. It aims to analyze the immune response over time, particularly the transition from a pro-inflammatory phase to a state of prolonged immunosuppression. Blood samples will be collected from patients in the ICU to assess immune alterations and the potential reactivation of dormant viruses. The findings could provide insights into the immune dynamics in septic patients and inform future therapeutic strategies.

Who should consider this trial

Good fit: Ideal candidates for this study are adults over 18 years old who have been admitted to the ICU with a diagnosis of septic shock within 48 hours.

Not a fit: Patients who are pregnant, breastfeeding, or involved in other interventional studies that may affect biological results will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved management strategies for septic shock patients, potentially enhancing their recovery and reducing mortality rates.

How similar studies have performed: While the immune response in septic shock has been studied, this specific observational approach focusing on the transition to immunosuppression is relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age over 18 years
* Patient admitted to ICU
* Diagnosis of septic shock within less than 48h at time of screening defined by :
* Presence of a microbiologically diagnosed or suspected infection
* Initiation of a vasopressive treatment to maintain mean arterial blood pressure ≥ 65 mm Hg initiated during the first 48h after ICU admission
* Presence of an hyperlactatemia \> 2 mmol/L (18 mg/dL) during the 24h before or after initiation of vasopressive treatment despite adequate volemic reanimation (30 ml/kg)
* Blood sample at D3/D4 available (lab working days)
* Non opposition to study participation obtained from patient or next of kin

Exclusion Criteria:

* Pregnant or breastfeeding woman
* Patient with no social security insurance, with restricted liberty or under legal protection
* Language barrier
* Patient taking part in interventional study about medicin that could interfere with biologic results

Where this trial is running

Lyon

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Septic Shock
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.