Does Paracetamol Influence the Release of Gut Hormones, Glucose Absorption and Glycemia?

September 9, 2026 updated by: Simon Veedfald, University of Copenhagen
The study aim is to determine whether acute inhibition of endogenous prostaglandin synthesis by paracetamol affects the release of gut hormones, glucose absorption and glycemia in healthy young individuals

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Study Type

Interventional

Enrollment (Estimated)

12

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Age ≥ 18 years
  • Nondiabetic fasting plasma glucose (< 7.0 mmol/L) at time of inclusion
  • BMI of 20-25
  • Written informed consent

Exclusion Criteria:

  • Haemoglobin < 7.9 mmol/L
  • Pregnancy or breastfeeding
  • Significant gastrointestinal symptoms (e.g. dyspepsia, postprandial pain)
  • Use of medication that cannot be paused for 12 hours or any drug that affects gastric emptying, small intestinal motility, glucose absorption.
  • Use of paracetamol, NSAID, aspirin or similar within the previous week.
  • Evidence of drug abuse, consumption of tobacco in any form or daily consumption of more than 20g alcohol
  • History of gastrointestinal disease, including significant upper or lower gastrointestinal symptoms, pancreatitis, or previous gastrointestinal surgery including cholecystectomy (but not uncomplicated appendicectomy)
  • Participation in other research studies within the previous 3 months
  • Inability to give informed consent
  • Intolerance to any of the components of paracetamol and the meals used for the study

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: Randomized
  • Interventional Model: Crossover Assignment
  • Masking: Triple

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Placebo Comparator: Placebo
Other: Placebo
A placebo will be administered to be able to determine the effect of paracetamol on prostaglandin synthesis
Active Comparator: Paracetamol (1000mg)
Other: Paracetamol
Paracetamol is used as a tool to block prostaglandin synthesis

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Glucagon-like peptide 1
Time Frame: From baseline samples (-15, 0 min) until the end of the meal test at t = 180min
Plasma concentration
From baseline samples (-15, 0 min) until the end of the meal test at t = 180min

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Glucose
Time Frame: From baseline samples (-15, 0 min) until the end of the meal test at t = 180min
Plasma concentration
From baseline samples (-15, 0 min) until the end of the meal test at t = 180min
Gastrin
Time Frame: From baseline samples (-15, 0 min) until the end of the meal test at t = 180min
Plasma concentration
From baseline samples (-15, 0 min) until the end of the meal test at t = 180min
Cholecystokinin
Time Frame: From baseline samples (-15, 0 min) until the end of the meal test at t = 180min
Plasma concentration
From baseline samples (-15, 0 min) until the end of the meal test at t = 180min
Glucose-dependent insulinotropic polypeptide (GIP)
Time Frame: From baseline samples (-15, 0 min) until the end of the meal test at t = 180min
Plasma concentration
From baseline samples (-15, 0 min) until the end of the meal test at t = 180min
C-peptide
Time Frame: From baseline samples (-15, 0 min) until the end of the meal test at t = 180min
Plasma concentration
From baseline samples (-15, 0 min) until the end of the meal test at t = 180min
Glucagon
Time Frame: From baseline samples (-15, 0 min) until the end of the meal test at t = 180min
Plasma concentration
From baseline samples (-15, 0 min) until the end of the meal test at t = 180min
Pancreatic polypeptide
Time Frame: From baseline samples (-15, 0 min) until the end of the meal test at t = 180min
Plasma concentration
From baseline samples (-15, 0 min) until the end of the meal test at t = 180min
3-OMG
Time Frame: From baseline samples (-15, 0 min) until the end of the meal test at t = 180min
Plasma concentration
From baseline samples (-15, 0 min) until the end of the meal test at t = 180min

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

University of Copenhagen

Collaborators

Hvidovre University Hospital

Investigators

  • Principal Investigator: Simon Veedfald, MD, PhD, Department of BIomedical Scienes, University Copenhagen

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

June 1, 2026

Primary Completion (Estimated)

September 30, 2026

Study Completion (Estimated)

December 31, 2026

Study Registration Dates

First Submitted

September 9, 2026

First Submitted That Met QC Criteria

September 9, 2026

First Posted (Actual)

September 15, 2026

Study Record Updates

Last Update Posted (Actual)

September 15, 2026

Last Update Submitted That Met QC Criteria

September 9, 2026

Last Verified

September 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • PCT-2026

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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