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Seeing is believing: study tests if watching injection prep boosts pain relief

NCT ID NCT04111718

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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looks at whether watching the steps to prepare a platelet-rich plasma (PRP) injection for knee osteoarthritis changes how well patients think it works. About 158 adults aged 50 to 80 with knee osteoarthritis will be involved. Some will watch the preparation, others will not, and researchers will compare their pain and function scores.

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

Phase 4

Runs after approval, following long-term safety and how well the treatment works in everyday use.

Participants

About 158 people

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

Started

Oct 2019

Expected to finish

Dec 2025

An estimate. End dates often move.

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

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

Ages

50 to 80 years

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: * Adult men or women ages 50-80 years * Diagnosis of symptomatic osteoarthritis of the knee based on clinical and radiographic criteria * Provision of informed consent Exclusion Criteria: * Patients with inflammatory osteoarthritis * Open wounds or sores over the knee joint * Patients that will likely have problems, in the judgement of the investigators, with maintaining follow-up

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Conditions

The condition(s) this trial relates to.

As listed by the trial registrant

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

Contacts and locations

Locations

  • ArthroBiologix

    Hamilton, Ontario, Canada

More trials for these conditions

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