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Massive study tracks 32,000 oil spill cleanup workers for hidden health risks

NCT ID NCT01287000

Knowledge-focused Sponsor: National Institute of Environmental Health Sciences (NIEHS) 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 02, 2026 · Updated 1 time

Summary

This study follows over 32,000 people who helped clean up the 2010 Deepwater Horizon oil spill in the Gulf of Mexico. Researchers want to see if exposure to crude oil and chemical dispersants leads to long-term health problems like heart disease, cancer, or lung issues. Participants provide blood, urine, and other samples and are interviewed every two years. The goal is to understand the health consequences of oil spills and guide future disaster response.

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 this study succeeds, it could reveal the long-term health risks of oil spill cleanup work and help protect future disaster responders.
What could go wrong
This is an observational study, not a treatment trial. It can show links but cannot prove cause and effect. Results may take many years to emerge.

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

32,658 people

The number who actually took part.

Started

Mar 2011

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

Workers and volunteers engaged or potentially engaged in oil spill clean-up operations in the Gulf of Mexico

Ages

21 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: We anticipate screening as many as 90,000 individuals in order to recruit approximately 55,000 volunteers primarily from the four most affected Gulf States\* (LA, MS, AL, and FL) into the cohort, which will include a randomly sampled Active Follow-up Sub-cohort of approximately 24,000 individuals nested within it. Eligibility criteria for the cohort include: * 21 years of age or older * Fall into one of two oil-related exposure categories: * Potentially exposed subjects must have completed at least one day of oil-spill clean-up-related work (other than safety training), either paid or volunteer. * Unexposed subjects will be individuals who were not directly involved in oil spill clean-up activities, but who worked near the oil spill or completed some oil spill worker training. * Unexposed subjects will be individuals who were not directly involved in oil spill clean-up activities, but who worked near the oil spill or completed some oil spill worker training. * pregnant women will be allowed to enroll in the study, and women who become pregnant during the study will not be withdrawn. EXCLUSION CRITERIA: * Children will not be enrolled because they were not allowed to participate in clean-up activities. * Those who were deemed medically ineligible to participate in clean-up activities because of pre-existing conditions are excluded because they won t be representative of those individuals who were engaged in clean-up activities.

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Conditions

The condition(s) this trial relates to.

cancer cardiovascular disorder hematologic disorder immune system disorder neoplasm Psychological Well-Being Respiratory Aspiration

As listed by the trial registrant

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

Cancer Cardiovascular disease Hematologic diseases Immunologic disease Respiratory function

Contacts and locations

Locations

  • Social & Scientific Systems

    Durham, North Carolina, 27703, United States

More trials for these conditions

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