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Sprains and StrainsPhase 4NCT00261560

A Safety and Effectiveness Study of Acetaminophen Extended Release (3900 mg/Day) and Ibuprofen (1200 mg/Day) in the Treatment of Pain Associated With Ankle Sprains.

A Phase 4 study testing acetaminophen in people with Sprains and Strains and Pain, run by Johnson & Johnson Consumer and Personal Products Worldwide.

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

The purpose of this study is to compare the safety and effectiveness of 1300 mg acetaminophen extended release given three times daily for nine days to that of 400 mg ibuprofen given three times daily for nine days for the signs and symptoms of (Grade I and Grade II) lateral ankle sprains. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Sprains and Strains, Pain
What is being tested?
acetaminophen
How many people
260 participants
Where
No sites listed yet
Study dates
Start not givento Feb 2004
Phase
Phase 4
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 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Have had an ankle sprain within 24 hours of study entry
  • have ankle pain when walking
  • have not recently used non-steroidal, anti-inflammatory drugs (NSAIDs), other pain relieving medications (including acetaminophen) or medicines that could interfere with the assessment of effectiveness
  • if female, must not be pregnant or breastfeeding

Who cannot join

  • Ankle sprain was the second ankle sprain within six months
  • Both ankles were sprained
  • Ankle sprain occurred on the same side of the body as a knee injury
  • Ankle injury requires bed rest, hospitalization, surgical intervention, or use of a non-removable rigid cylindrical cast
  • Subject reports severe or very severe pain at rest on a five-point scale of none, mild, moderate, severe or very severe

About this study

Official title: A Randomized, Double-Blind, Parallel-Group Study Comparing the Safety and Effectiveness of Acetaminophen Extended Release (3900 mg/Day) and Ibuprofen (1200 mg/Day) in the Treatment of Ankle Sprains.

The purpose of this study is to compare the safety and effectiveness of 1300 mg acetaminophen extended release given three times daily for nine days to that of 400 mg ibuprofen given three times daily for nine days for the signs and symptoms of (Grade I and Grade II) lateral ankle sprains.

Read the detailed description

The objective of this randomized, double-blind, parallel-group study is to compare the safety and effectiveness of 1300 mg acetaminophen extended release given three times daily for nine days to that of 400 mg ibuprofen given three times daily for nine days for the signs and symptoms of Grade I and Grade II lateral ankle sprains. The primary efficacy endpoint is the change from baseline (Day 1) to Day 4 in the subjects' pain upon walking. Safety assessments consist of the monitoring of adverse events and assessments of the ankle injury during the course of the study. Two hypotheses are examined using a step down approach. The first hypothesis is that acetaminophen extended release is not inferior to ibuprofen in relieving the pain associated with (Grade I or Grade II) lateral ankle sprains. If acetaminophen extended release is not inferior to ibuprofen in relieving the pain associated with Grade I or Grade II lateral ankle sprains, the second hypothesis is that acetaminophen extended release is superior to ibuprofen in relieving the pain associated with Grade I or Grade II lateral ankle sprains. Two acetaminophen 650 mg extended release caplets, taken by mouth, three times a day for nine days or two ibuprofen 200 mg caplets, taken by mouth, three times a day for nine days

Being tested
acetaminophen
Keywords
ankle sprain, acetaminophen extended release, ibuprofen
Medical subject headings
Sprains and Strains, Pain, Ankle Injuries

What participants receive

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

What is being measured

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

  1. Change from baseline (Day 1) to Day 4 in the subject's pain upon walking using a 0 to 100 mm visual analogue scale.

Secondary outcomes (1)
  1. Change from baseline to Day 9 in pain upon walking; change from baseline to Day 4 and 9 in: ability to walk, ankle swelling, ankle bruising, and ankle's range of motion; overall satisfaction with treatment from Day 1 to Day 4 and Day 1 to Day 9.

Timeline

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

  1. First posted5 Dec 2005 (estimated)
  2. Study completionFeb 2004

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 4
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Enrolment
260 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00261560
Sponsor's protocol ID
CR002824
Status last verified
Jun 2011
First submitted
2 Dec 2005
Last updated
29 Jun 2011
Results posted
No

Publications

  • Dalton JD Jr, Schweinle JE. Randomized controlled noninferiority trial to compare extended release acetaminophen and ibuprofen for the treatment of ankle sprains. Ann Emerg Med. 2006 Nov;48(5):615-23. doi: 10.1016/j.annemergmed.2006.05.015. Epub 2006 Sep 1.

    PubMed 17052565

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing acetaminophen in people with Sprains and Strains and Pain, run by Johnson & Johnson Consumer and Personal Products Worldwide.

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 4 inclusion and 5 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 29 Jun 2011. Status can change between updates, so confirm with the study contact before making plans.

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 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

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?

Change from baseline (Day 1) to Day 4 in the subject's pain upon walking using a 0 to 100 mm visual analogue scale.. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00261560, which also lists 1 linked publication.

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 29 Jun 2011.

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