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Social media experiment aims to increase organ donor registrations

NCT ID NCT04850287

Knowledge-focused Sponsor: University of California, Davis 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 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 19, 2026 · Updated 2 times

Summary

This study tests whether showing digital educational materials about organ donation on social media can increase health awareness and organ donor registrations among Californians. Over 2 million Facebook users with California ZIP codes are included. The goal is to see if social network interventions can effectively promote public health.

What this could mean

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

Active substance
digital educational materials about organ donation delivered via social media
What this could lead to
If successful, this approach could show how social media can effectively increase public health awareness and organ donor registrations.
What could go wrong
This is an observational-style behavioral study with no direct medical intervention. Results may not apply to other health topics or regions.

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 2,000,000 people

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

Started

Feb 2021

Expected to finish

Jun 2027

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

Children (under 18), adults (18 to 64) and older adults (65 and over)

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: * Have a California zip code. * Be a Facebook user

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Conditions

The condition(s) this trial relates to.

Behavior

As listed by the trial registrant

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

Health knowledge, attitudes, practice

Contacts and locations

Locations

  • UC Davis Medical Center

    Sacramento, California, 95817, United States

More trials for these conditions

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