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Your friendships may predict your mental health: stanford study follows 10,000 students

NCT ID NCT04771195

Knowledge-focused Sponsor: Stanford University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study followed nearly 10,000 Stanford undergraduates over their college years to understand how social ties, loneliness, and stress relate to anxiety and depression. Researchers used surveys and social network analysis to track changes in mental health. The goal is to create a clearer picture of which social factors matter most for young adult well-being.

What this could mean

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

What this could lead to
If successful, this research could help identify which social factors most strongly predict mental health issues in young adults, pointing toward better support strategies.
What could go wrong
This is an observational study, not a treatment trial, so it cannot prove cause and effect. Results may not apply beyond the specific college population studied.

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

9,941 people

The number who actually took part.

Started

Aug 2021

Finished

May 2026

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

Accepted

You do not need to have the condition being studied to take part.

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: Stanford undergraduate students in the classes of 2023 and 2024, as well as all students who reside in their dorms. \- Exclusion Criteria: People under the age of 18 \-

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Conditions

The condition(s) this trial relates to.

anxiety anxiety disorder Depression depressive disorder

As listed by the trial registrant

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

Anxiety Depression Loneliness Stress

Contacts and locations

Locations

  • Stanford University

    Stanford, California, 94305, United States

More trials for these conditions

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