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Study aims to cut opioid overprescribing by tracking Real-World pill use

NCT ID NCT03953534

Knowledge-focused Sponsor: Centre Integre Universitaire de Sante et Services Sociaux du Nord de l'ile de Montreal Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This completed study tracked over 2,200 patients who were prescribed opioids for acute pain after an emergency department visit. Participants recorded how many pills they actually took over two weeks. The goal was to find out the right amount to prescribe, so fewer leftover pills are available for misuse. The study did not test a new treatment but aimed to gather data to guide safer prescribing.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
opioids (morphine and similar painkillers)
What this could lead to
If successful, this could help doctors prescribe the right amount of opioids, reducing leftover pills that might be misused.
What could go wrong
This is an observational study, not a treatment trial. It won't directly test a new drug or therapy, so it may not change prescribing habits on its own.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

2,240 people

The number who actually took part.

Started

May 2019

Finished

Jun 2023

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

A cohort of consecutive ED patients aged 18 years or more, treated for an acute pain condition present for less than 2 weeks (usual acute pain definition),and discharged with an opioid prescription will be included. In accordance to our pragmatic approach, we will exclude only patients with current use of opioids or chronic pain medication for a pre-existing condition or disease (e.g., cancer), because opioid dosage and/or pain mechanisms differ in these circumstances.

Ages

18 years and older

Sex

Anyone

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Opioid prescription at discharge * Acute pain for less than 2 weeks Exclusion Criteria: * Language barrier * Chronic pain under treatment * Active Neoplasia * Follow-up impossible / Unable to complete agenda * Already on opioids

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Conditions

The condition(s) this trial relates to.

Acute Pain

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Acute pain

Contacts and locations

Locations

  • Hôpital Maisonneuve-Rosemont

    Montreal, Quebec, H1T 2M4, Canada

  • Hôpital de l'Enfant-Jésus

    Québec, Quebec, G1J 1Z4, Canada

  • Hôpital du Sacré-Coeur de Montréal

    Montreal, Quebec, H4J 1C4, Canada

  • Hôpital régional de Saint-Jérôme

    Saint-Jérôme, Quebec, J7Z 5T3, Canada

  • Kingston General Hospital

    Kingston, Ontario, K7L 2V7, Canada

  • Sunnybrook Health Sciences Centre

    Toronto, Ontario, M4N 3M5, Canada

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