NCT03679442

Brief Summary

Paracetamol (PCM) is a widely used over-the-counter analgesic, and overdose with PCM is a condition regularly seen in everyday clinical practice. Identification of the patients with early signs of liver injury that may develop into acute liver failure is important. Previous research has shown that macrophages play a role in the development of liver damage in PCM-induced acute liver failure, making macrophage markers interesting possible biomarkers of this condition. In the present study, the investigators aimed to investigate the extent and timing of macrophage activation in PCM-induced liver injury by measuring levels of macrophage markers sCD163 and sCD206 in patients admitted with PCM overdose. The investigators also hoped to find out whether these markers are valuable as prognostic markers of severe outcome in these patients. Furthermore the investigators examined the possible effect of antidote treatment with N-acetylcysteine on activation and function of macrophages by administering NAC to healthy subjects and measuring levels of sCD163 and sCD206 prior to and after completion of treatment.

Trial Health

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
16

participants targeted

Target at below P25 for phase_1

Timeline
Completed

Started Sep 2014

Typical duration for phase_1

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

September 8, 2014

Completed
9 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

June 14, 2015

Completed
1.7 years until next milestone

Study Completion

Last participant's last visit for all outcomes

February 18, 2017

Completed
1.6 years until next milestone

First Submitted

Initial submission to the registry

September 17, 2018

Completed
3 days until next milestone

First Posted

Study publicly available on registry

September 20, 2018

Completed
Last Updated

September 24, 2018

Status Verified

September 1, 2018

Enrollment Period

9 months

First QC Date

September 17, 2018

Last Update Submit

September 20, 2018

Conditions

Keywords

macrophage activation, N-acetylcysteine, acetaminophen

Outcome Measures

Primary Outcomes (2)

  • Change from baseline in sCD163

    Change in macrophage activation marker soluble CD163 after treatment of healthy individuals with N-acetylcysteine

    16 hours

  • Change from baseline in sCD206

    Change in macrophage activation marker soluble CD206 after treatment of healthy individuals with N-acetylcysteine

    16 hours

Study Arms (1)

Healthy individuals

EXPERIMENTAL

Healthy individuals received intravenous N-acetylcysteine (NAC) treatment to investigate its actions on macrophage activation assessed by the markers soluble CD163 and CD206

Drug: N-acetylcysteine

Interventions

Non-randomized exposure to N-acetylcysteine (NAC) of healthy individuals corresponding to the clinical treatment guidelines for paracetamol-overdosed patients

Also known as: NAC, Paracetamol antidote, Acetylcysteine
Healthy individuals

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age 18 to 75

You may not qualify if:

  • A history of previous illness

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Chemical and Drug Induced Liver Injury

Interventions

Acetylcysteine

Condition Hierarchy (Ancestors)

Liver DiseasesDigestive System DiseasesDrug-Related Side Effects and Adverse ReactionsChemically-Induced DisordersPoisoning

Intervention Hierarchy (Ancestors)

CysteineAmino Acids, SulfurSulfur CompoundsOrganic ChemicalsAmino AcidsAmino Acids, Peptides, and Proteins

Study Officials

  • Henning Grønbæk

    Department of Hepatology and gastroenterology, Aarhus University Hospital

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
phase 1
Allocation
NA
Masking
NONE
Purpose
BASIC SCIENCE
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 17, 2018

First Posted

September 20, 2018

Study Start

September 8, 2014

Primary Completion

June 14, 2015

Study Completion

February 18, 2017

Last Updated

September 24, 2018

Record last verified: 2018-09