Den här översättningen är inte klar ännu. Den här sidan är just nu på engelska.

Gå till den engelska sidan

Cure My Disease

Don't miss your cure!

 Log in / Sign up

Vitamin c may cut opioid need after emergency room pain

NCT ID NCT05555576

Symptom relief 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 study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests whether taking high-dose vitamin C for two weeks can lower the amount of opioid pain pills people need after leaving the emergency room with acute muscle or bone pain. About 464 adults will be randomly assigned to receive either vitamin C or a placebo. The goal is to see if vitamin C can safely reduce opioid use and help manage pain.

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.

Phase

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

About 464 people

The number the study aims to enrol. It can still change while the study runs.

Started

Nov 2023

Expected to finish

Dec 2026

An estimate. End dates often move.

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.

Ages

18 years and older

Sex

Anyone

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: 1. Aged 18 and over; 2. Treated in ED for acute musculoskeletal pain present for less than 2 weeks; 3. Discharged with an opioid prescription; 4. Speaks French or English. Exclusion Criteria: 1. Opioid use 1 month prior to the ED visit; 2. Already taking vitamin C supplement; 3. Active cancer; 4. Treated for chronic pain; 5. Treated for opioid use disorder; 6. Unable to fill out diary or unavailable for follow-up; 7. Any allergy, intolerance or sensitivity to milk (lactose) or morphine 8. Treated with cyclosporin or coumadin 9. Pregnant or lactating (dosage \> 1,800 mg not recommended. For women of child-bearing age and sexually active in the past 3 months, a urine pregnancy test will be performed.)

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for Pain, acute are added.

Vår säkerhetsrekommendation!

Genom att skicka in godkänner du våra Användarvillkor

Conditions

The condition(s) this trial relates to.

Acute Pain Emergencies Pain

As listed by the trial registrant

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

Pain, acute

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • Hôpital du Sacré-Coeur de Montréal

    RECRUITING

    Montreal, Quebec, H4J 1C4, Canada

More trials for these conditions

Other studies related to the condition(s) this trial covers.