- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03122561
Estimation of Paracetamol in Urine to Assess the Diurnal Variation
July 12, 2018 updated by: Prof. Mir Misbahuddin, Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
Paracetamol is an antipyretic drug that is taken orally at different times of the day in same dose.
It is excreted mainly through renal route which may show diurnal variation.
In this study, urinary excretion of paracetamol of 41 healthy men of same age group will be measured by HPLC after oral administration of 500 mg paracetamol tablet at morning, midday and night.
The measured values will be compared in order to adjust doses of oral paracetamol at different times of the day.
Study Overview
Status
Completed
Conditions
Detailed Description
Drug absorption, distribution, biotransformation and excretion are influenced by many different physiological functions of the body which may vary with time of the day.
The time dependent changes in pharmacokinetics are due to circadian variation of human physiology and it is sometimes responsible for drug effects or adverse effects.
Paracetamol is a widely used antipyretic and analgesic drug.
It is usually well tolerated when used at the recommended dose.
Paracetamol is a weak acidic drug that is rapidly absorbed and distributed after oral administration.
It is metabolized extensively in liver and excrteted mainly through kidney as metabolites of paracetamol and some are as unchanged form.
Paracetamol and its metabolites can be determined in biological fluids (urine, plasma, serum) by various mechanisms.
High Performance Liquid Chromatography (HPLC) is a modern analytical chemistry technique by which paracetamol can be identified, separated and estimated from urine sample.
This study is designed to investigate whether the excretion of paracetamol is changed or not if administered at same dose as oral tablet at three different times of the day.
For this purpose after taking written informed consent 41 healthy men of aged 19- 23 will be provided 500 mg oral paracetamol tablet at morning, midday and night in two weeks interval and estimation of urinary paracetamol will be done by HPLC after paracetamol ingestion.
A pilot study has been done and result shows highest concentration of paracetamol in urine after its oral administration found at 4th hour.
Urine sample will be collected before and 4 hour after paracetamol administration in chloroform containing urine container and will be preserved in - 20 ̊C until analysis.
Paracetamol standard has been collected from the same pharmaceutical company of which the drug will be used for study.
Mobile phase will be consist of acetonitrile and distilled water and flow rate will be 0.5 ml/min at 25 ̊C temperature and 900 Psi pressure.
The standard and sample will be analysed at a wavelength 254 nm.
Total urinary paracetamol of that time will be estimated by multiplying total urinary volume in ml and concentration of paracetamol in one ml of urine.
After measuring paracetamol at different times of the day, statistical analysis will be done to compare those values.
If significant variation is found, adjustment of dose of oral paracetamol in different time of the day will be tried.
Study Type
Interventional
Enrollment (Actual)
46
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 Locations
-
-
-
Comilla, Bangladesh, 3500
- Eastern Medical College
-
-
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
19 years to 23 years (Adult)
Accepts Healthy Volunteers
Yes
Genders Eligible for Study
Male
Description
Inclusion Criteria:
- The healthy male student volunteers of Eastern Medical College having age range between 19 and 23 years
Exclusion Criteria:
- Age <19 years , >23 years
- Volunteers on analgesic or antipyretic medication
- Volunteers with history of hypersensitivity to paracetamol
- Volunteers taking any enzyme inducing or enzyme inhibiting drug
- Volunteers with impaired renal or hepatic function
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: Diagnostic
- Allocation: Non-Randomized
- Interventional Model: Parallel Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Other: Paracetamol 500 mg tablet at Morning
Urinary paracetamol of 41 healthy volunteers will be measured after oral administration at morning
|
Single dose oral paracetamol will be administered at 8.00 am
Other Names:
|
Other: Paracetamol 500 mg tablet at Midday
Urinary paracetamol of 41 healthy volunteers will be measured after oral administration at midday
|
Single dose oral paracetamol will be administered at 2.00 pm
Other Names:
|
Other: Paracetamol 500 mg tablet at Night
Urinary paracetamol of 41 healthy volunteers will be measured after oral administration at night
|
Single dose oral paracetamol will be administered at 8.00 pm
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Changes in the amount of urinary paracetamol in different times
Time Frame: [Morning: 0 hour (baseline), 4 hour (end); Mid-day: 0 hour (baseline), 4 hour (end); Night: 0 hour (baseline), 4 hour (end)] [Safety Issue: No]
|
Changes in the amount of urinary paracetamol in different times (morning, midday and night) 4 hours after oral administration of 500 mg of paracetamol
|
[Morning: 0 hour (baseline), 4 hour (end); Mid-day: 0 hour (baseline), 4 hour (end); Night: 0 hour (baseline), 4 hour (end)] [Safety Issue: No]
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
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)
November 3, 2016
Primary Completion (Actual)
January 30, 2018
Study Completion (Actual)
January 30, 2018
Study Registration Dates
First Submitted
April 17, 2017
First Submitted That Met QC Criteria
April 20, 2017
First Posted (Actual)
April 21, 2017
Study Record Updates
Last Update Posted (Actual)
July 13, 2018
Last Update Submitted That Met QC Criteria
July 12, 2018
Last Verified
July 1, 2018
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- BSMMU-013-CT
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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