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Healthy VolunteerPhase 1NCT01551836

At What Time Therapeutic Plasma Concentrations of Paracetamol Are Achieved in Two Marketed Formulations

A Phase 1 study testing Paracetamol formulation 1 and Paracetamol formulation 2 in people with Healthy Volunteer, run by GlaxoSmithKline at 1 site in United Kingdom.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This will be a single centre, open label, randomised, two-way crossover study in healthy volunteers under semi-fed conditions. Two formulations of paracetamol, are being tested in this study to establish at what time point a therapeutic concentration of paracetamol in the blood is reached. Read more about this study

Who is it for?
Ages 18 to 55 years, men onlyHealthy volunteers can take part
Conditions the study is for
Healthy Volunteer
What is being tested?
Paracetamol formulation 1 and Paracetamol formulation 2
Could I receive a placebo?
No, everyone receives an active treatment
How many people
12 participants
Where
1 siteUnited Kingdom
Study dates
Jun 2009to Jun 2009
Phase
Phase 1
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 55 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Males in good general heatlh and Body Mass Index between 19-28 kg/m2

Who cannot join

  • Disease
  • Current liver impairment, renal impairment, history of or active gastrointestinal ulcers, uncontrolled hypertension, haemophilia or other bleeding disorders.
  • Current or recurrent disease, within 12 months of the screening, that could affect the action, absorption or disposition of the study formulations or clinical or laboratory assessments (e.g. hepatic disorders, renal insufficiency, congestive heart failure).
  • Current or relevant previous history, within 12 months of the screening visit, of serious, severe or unstable physical or psychiatric illness, any medical disorder that may require treatment or make the subject unlikely to fully complete the study, or any condition that presents undue risk from the study treatments or procedures.
  • Medications
  • Current or regular use at screening of any prescription, herbal or Over the Counter (OTC) medication including paracetamol, aspirin, metaclopramide, domperidone, cholestyramine, angiotensin -converting enzyme (ACE) inhibitors, acetazolamide, anticonvulsants, diuretics, methotrexate, non-steroidal anti-inflammatory drugs (NSAIDs) and oral hypoglycemics within the past 48 hrs and monoamine oxidase inhibitors, tricyclic antidepressants, beta blockers and anticoagulants such as warfarin and heparin within the past 2 weeks.
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  • Subjects who have taken any drug known to induce or inhibit hepatic drug metabolism in the 30 days prior to the screening visit (some examples of inducers: barbiturates, theophylline; inhibitors: cimetidine, erythromycin).
  • Subjects for whom the use of any of the study drugs is contraindicated.
  • Virology Screening Positive screening for serum Hepatitis B surface antigen, Hepatitis C antibodies or human immunodeficiency virus (HIV).
  • Drug Screen
  • Positive urine screen for drugs of abuse at screening and/or Day-1.
  • Positive alcohol breath test on Day-1.
  • Smoking
  • Smoking more than five cigarettes a day.
  • Prior (within 7 days of dosing on Day 1) or current use of any other nicotine containing products, other than cigarettes/pipes/cigars.
  • Blood donation Has donated blood or plasma or any other blood product within 3 months of the screening visit. Subjects for whom participation in this study would result in having donated more than 1500 ml of blood within the previous 12 months.
  • Nutrition
  • Is a vegetarian or is under a sodium restricted diet.
  • Has consumed poppy seed containing foods within 3 days prior to the screening visit and admission on Day -1.
  • Has consumed food and beverages containing grapefruit, Seville oranges or marmalade within 24 hrs prior to admission on Day -1.
  • Has consumed caffeine containing drinks or food (e.g. tea, coffee, chocolate and cola) 24 hrs prior to admission on Day -1.
  • Has consumed alcohol 36 hrs prior to admission on Day -1.
  • Has undertaken any unusually strenuous physical activity 24 hrs prior to the screening visit or check-in on Day 1.
  • Weight Weight below 50 kg.
  • Haemoglobin Subjects with haemoglobin level below 12.0 gram /decilitre (dl).

Trial locations and contacts

1 site in 1 country.

United Kingdom1 site
  • GSK Investigational Site

    Belfast, Northern Ireland, BT9 6AD

Other trials in United Kingdom

About this study

Official title: A Randomised, Two Way Crossover Study to Determine the Time at Which Therapeutic Plasma Concentrations of Paracetamol Are Achieved in Two Marketed Formulations

This will be a single centre, open label, randomised, two-way crossover study in healthy volunteers under semi-fed conditions. Two formulations of paracetamol, are being tested in this study to establish at what time point a therapeutic concentration of paracetamol in the blood is reached. Subjects will attend a screening visit to check if they are eligible for study participation then within 15 days they will check-in to the unit for a stay of approximately 48 hours (hrs). They will be given a single dose of one of the preparations on the first day and then the other preparation on the next day. Regular blood samples will be taken along with other assessments for safety.

Being tested
Paracetamol formulation 1, Paracetamol formulation 2
Keywords
pharmacokinetics, paracetamol

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Paracetamol formulation 1Drug

    formulation 1

  • Paracetamol formulation 2Drug

    Formulation 2

Study groups in NCT01551836
Study groupRoleWhat they receive
Paracetamol formulation 1OtherHigher dose level of marketed paracetamol (compared to the other dosage arm)
Receives: Drug: Paracetamol formulation 1
Paracetamol formulation 2OtherLower paracetamol concentrations
Receives: Drug: Paracetamol formulation 2

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Mean time to therapeutic levels of plasma concentration

    Measured: within a single day

Secondary outcomes (1)
  1. Mean plasma concentrations

    Measured: within a single day

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted13 Mar 2012 (estimated)
  2. Study startJun 2009
  3. Primary completionJun 2009
  4. Study completionJun 2009

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Allocation
Randomised
Intervention model
Crossover
Masking
Single blind
Who is masked
Participant
Enrolment
12 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01551836
Sponsor's protocol ID
E3870651
Status last verified
Mar 2012
First submitted
23 Jun 2011
Last updated
13 Mar 2012
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Paracetamol formulation 1 and Paracetamol formulation 2 in people with Healthy Volunteer, run by GlaxoSmithKline at 1 site in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 25 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 13 Mar 2012. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Mean time to therapeutic levels of plasma concentration (time frame: within a single day). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 13 Mar 2012.

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