MedPath

Dexmedetomidine in Modifying Immune Paralysis In Patient With Septic Shock

Phase 2
Completed
Conditions
Septic Shock
Interventions
Registration Number
NCT03989609
Lead Sponsor
Kasr El Aini Hospital
Brief Summary

in this study the investigators aim to assess the role of using dexmedetomidine as sedative in septic shock patients in comparison with midazolam. The investigators aim to assess the effect on immune response and inflammatory mediators and effect on vasopressors.

Detailed Description

Sedation protocol All patients will receive analgesia with fentanyl at fixed dose of 0.5 µg.kg.hr-1. Each patient will receive the study drug within 6 hours after ICU admission. Depth of sedation will be assessed using Richmond Agitation and Sedation Scale (RASS) scores (6), which range from -5 (unarousable) to +4 (combative). Study treatments will be infused without loading dose. Group I patients will have dexmedetomidine (4 µg.mL-1) and group II patients will have midazolam (0.33 mg.mL-1). Both drugs will be prepared in 0.9% sodium chloride in 50-mL syringe. Both the agents will be titrated to maintain the RASS in a range of -3 to -1. Dexmedetomidine infusion will be started at 0.1 µg.kg-1.hr-1 and will be adjusted by 0.1 µg.kg-1.h-1 to a maximum of 0.5 µg/kg/h, while midazolam will be started at 1 mg.h-1 (3 mL.hr-1) and adjusted by 1 mg.h-1 to a maximum of 5 mg.h-1 (15 mL.h-1). All infusions will be adjusted by increments of 3 mL/hr-1. Patients in either group not adequately sedated by study drug titration will receive a bolus dose of fentanyl 0.5-1 µg.kg. Assessment of RASS score will be performed every 2 hours and prior to any dose of rescue therapy. The study drugs will be infused for 24 hours and after that the choice of sedation will be determined according to preference of attending physician.

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
24
Inclusion Criteria
  • Age more than 18 years old
  • All mechanically ventilated patients who will be clinically suspected of having septic shock defined by infusion of at least one vasopressor and lactate > 2.0 mmol/l (5)
Exclusion Criteria
  • Age < 18 years old
  • Pregnant patient
  • Source of sepsis not controlled
  • Acute hepatitis or severe liver disease (Child-Pugh class C)
  • Left ventricular ejection fraction less than 30%
  • Heart rate less than 50 beats/min
  • Second or third degree heart block
  • Systolic pressure < 90 mmHg despite of infusion of 2 vasopressors.
  • Psychological illness or severe cognitive dysfunction
  • Patients who are allergic to dexmedetomidine

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
Dexmedetomidine GroupDexmedetomidine Injection [Precedex]patients will receive dexmedetomidine as sedative
MidazolamMidazolampatients will receive midazolam as sedative
Primary Outcome Measures
NameTimeMethod
Change in CD42/CD1424 hours after start of study drugs infusion

Expression of CD42/CD14 will be measured by flow cytometry

Secondary Outcome Measures
NameTimeMethod
effect on HLA-DR/CD14Baseline before start of drug then 6, 12 and 24 hour after drug

Expression of HLA-DR/CD14 will be measured by flow cytometry

TNFαBaseline before start of drug then 6, 12 and 24 hour after drug

Expression of tumor necrosis factor (TNFα) will be measured by flow cytometry

IL10Baseline before start of drug then 6, 12 and 24 hour after drug

Interleukin 10 will be measured by flow cytometry

KIM-1 levelBaseline before start of drug and 24 hour after drug

kidney injury molecule 1

number of participants that will die within 28 dayswithin 28 dyas

mortality within 28 days

Trial Locations

Locations (1)

Kasr Alainy Hospital , Faculty of Medicine

🇪🇬

Cairo, Egypt

© Copyright 2025. All Rights Reserved by MedPath