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The Effects of Acetylsalicylic Acid on Immunoparalysis Following Human Endotoxemia

NCT02922673 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 30

Last updated 2019-07-31

No results posted yet for this study

Summary

Rationale:

The last years, research focus has moved to immunostimulatory agents in order to restore or increase the functionality of the immune system during sepsis-induced immunoparalysis. Epidemiologic data show that prehospital use of low dose acetylsalicylic acid (ASA) is associated with improved outcome of sepsis. Experimental data indicate that ASA exerts pro-inflammatory effects during systemic inflammation. However, it remains to be determined whether treatment with ASA improves immune function once immunoparalysis has developed and whether prehospital use of low dose ASA prevents the development of immunoparalysis. In the former case, ASA is a potential immunostimulatory therapy that can treat sepsis-induced immunoparalysis. In the latter case, ASA may have a broader indication as an immunomodulating agent. Taken together, ASA might be a promising, cheap, well-known, and globally available agent to reduce the incidence of secondary infections and improve patient outcome in sepsis.

Objective:

* To determine whether acetylsalicylic acid treatment can reverse endotoxin tolerance, which is expressed as a decrease in pro-inflammatory cytokine levels between the first and second endotoxin challenge.
* To determine whether acetylsalicylic acid prophylaxis can prevent endotoxin tolerance, which is expressed as a decrease in pro-inflammatory cytokine levels between the first and second endotoxin challenge.

Study design:

Double-blind randomized placebo-controlled pilot study in 30 healthy male volunteers during repeated experimental endotoxemia. All subjects will receive a 14 day course of study medication (low-dose ASA or placebo) and undergo experimental endotoxemia (lipopolysacharide (LPS), E.Coli type O113) on day 7 and on day 14. LPS is administrated using an initial bolus of 1ng/kg followed by continuous infusion at 1ng/kg/hr during 3 hours.

Subjects are randomized in three study arms:

1. Treatment group: 7 days placebo / first endotoxemia / 7 days ASA 80 mg (loading dose on first day of 160mg) / second endotoxemia
2. Prophylaxis group: 7 days ASA 80 mg (loading dose on first day of 160mg) / first endotoxemia / 7 days ASA 80 mg / second endotoxemia
3. Placebo group: 7 days placebo / first endotoxemia / 7 days placebo / second endotoxemia

Conditions

  • Endotoxemia

Interventions

DRUG

Aspirin

DRUG

Placebo

Sponsors & Collaborators

  • Radboud University Medical Center

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
QUADRUPLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
35 Years
Sex
MALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2016-09-30
Primary Completion
2016-12-31
Completion
2017-09-30

Countries

  • Netherlands

Study Locations

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Entities

Drugs

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02922673 on ClinicalTrials.gov