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Same-Day consent for Low-Risk studies may be just as voluntary as earlier consent

NCT ID NCT07380035

Knowledge-focused Sponsor: University of Toronto 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looked at whether patients feel pressured to join a low-risk anesthesia research study if asked on the day of surgery versus several days before. Researchers recruited 114 patients having day surgery and randomly invited them to a fake study either before or on the day of surgery. After surgery, patients filled out questionnaires to measure how voluntary their decision felt. The goal is to understand if same-day consent can be truly voluntary, which could help more patients participate in research.

What this could mean

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

Active substance
timing of invitation to participate in a fabricated research trial
What this could lead to
If it works, this could show that same-day consent for low-risk anesthesia research is just as voluntary as consent given days before, helping more patients have the chance to join studies.
What could go wrong
This was a small, single-center study using a fake trial, so real-world results may differ. The findings may not apply to higher-risk studies or other hospital settings.

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

114 people

The number who actually took part.

Started

Jun 2024

Finished

Jun 2025

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: * Patient scheduled to undergo ambulatory anterior cruciate ligament repair under general anesthesia with an adductor canal nerve block at Women's Colege Hospital * Age ≥18 Exclusion Criteria: * Inability to provide informed consent

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As listed by the trial registrant

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

Coercion to participate in research Consent of patients

Contacts and locations

Locations

  • Women's College Hospital

    Toronto, Ontario, M5S 1B2, Canada

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