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Baltimore study investigates how neighborhoods shape drug habits

NCT ID NCT01571752

Knowledge-focused Sponsor: National Institute on Drug Abuse (NIDA) 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 27, 2026 · Last updated Sep 16, 2026 · Updated 15 times

Summary

This completed study looked at how a person's neighborhood environment might influence drug use, addiction, and whether they seek treatment. Over 1,600 adults from Baltimore took part, including people who never used drugs, past users, and current users. Researchers collected health data, surveys, and samples over 12 months to understand these connections.

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 study could help identify neighborhood factors that influence drug use and addiction, leading to better prevention and treatment programs.
What could go wrong
This is an observational study, not a treatment trial. It cannot prove cause and effect, and results may not apply to other cities or populations.

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.

Participants

1,651 people

The number who actually took part.

Started

Jul 2012

Lead sponsor

A government research agency

The lead sponsor is the US National Institutes of Health.

Who can take part

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

Who is studied

We will enroll 650 participants in Phase B of the study for a total enrollment (Phase A + Phase B + Phase C) of 3000 participants. Target enrollment will include 25% women and 70% minorities (mostly African-American).

Ages

18 to 100 years

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: The enrollment target in Phase B is 650 community-dwelling individuals (at least 325 of whom we anticipate will provide 12-month Visit #2 data in our 3 main study groups). Enrollment for Phase A + Phase B + Phase C =3000. * Age at least 18 years. Rationale: Children under 18 will not be included because many of the measures to be administered in this study are not validated for use with children. Furthermore, the research question under investigation is the drug trajectories of adults, over the age of 18. However, there is no intervention in this study that is contraindicated for older adults, and given that addiction in the elderly is understudied, it is important to include elderly individuals. * Residence in Baltimore city or one of the surrounding counties. Rationale: Our current geographic mapping technology currently only includes these areas. EXCLUSION CRITERIA: -Inability to provide informed consent.

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Conditions

The condition(s) this trial relates to.

drug dependence Social Stigma substance dependence substance-related disorder

As listed by the trial registrant

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

Activity space Drug abuse/dependence HIV status Social networks STIGMA

Contacts and locations

Locations

  • National Institute on Drug Abuse

    Baltimore, Maryland, 21224, United States

More trials for these conditions

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