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National Institute of Environmental Health Sciences (NIEHS) clinical trials

Listed in the registry as: U.S. National Institutes of Health.

The registry lists 183 studies whose lead sponsor is National Institute of Environmental Health Sciences (NIEHS). 18 are recruiting or about to start. Per ClinicalTrials.gov, last updated Oct 23, 2026.

Keep track of what changes. Save the National Institute of Environmental Health Sciences (NIEHS) studies recruiting or about to start, and get an email each week — studies that open, close, add sites or post results.

Watch these studies

Status

Completed
154
Recruiting
14
Withdrawn
7
Not yet recruiting
3
Active, not recruiting
3
Terminated
1

Phase

Phase 2
5
Phase 3
4
Phase 1
2

Where

United States
150
Mexico
4
China
3
Taiwan
2
Norway
2
Argentina
1

Focus areas

Conditions National Institute of Environmental Health Sciences (NIEHS) leads ten or more studies in, by study count. A broader condition is left out when almost all its studies are already in a narrower one listed here.

Asthma21Poisoning13Lead Poisoning10

Studies

Recruiting first, then most recently updated. Showing 50 of 183. Browse all 183 →