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Study identifier: NCT04888923 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Natural History of the Human Biological Response to Environmental Exposure and Injury

Condition: Inflammation · Normal Controls · Metabolic Disease  ·  Sponsor: National Institute of Environmental Health Sciences (NIEHS)

PhaseN/A
Planned participants2000
Who can joinAll sexes, 18 Years to 90 Years
Healthy volunteersYes

About this study

Background: Environmental exposures like pollution, diet, and stress can help cause human diseases, or make them worse. Researchers want to better understand how injury and inflammation are caused by these exposures. They want to collect biological and environmental samples and other data. They may use the samples to measure a range of factors, like hormones, toxins, and chemicals. This will help them improve their studies. Objective: To identify and understand how environmental exposures contribute to human disease. Eligibility: Healthy adults ages 18 and older Design: Participants will be screened with questions about their health history, demographics, and medicines they take. Participants may give blood, hair, stool, saliva, and/or urine samples. They may have a skin punch biopsy to collect skin cells. They may give fingernail or toenail clippings. They may give a sample of exhaled breath. Participants may give a sputum sample. They will inhale a saline mist and cough mucus into a cup. Participants may have their nasal passages brushed, scraped, or washed. Participants may give cheek cell samples. They will swish mouthwash and spit it into a cup. Participants who produce sperm may give samples. Participants may have bronchoscopy to collect fluid. A saline solution will be put into their lung and then suctioned out, washing areas of the lung. Participants may have a pelvic or transvaginal ultrasound. They may have lung function tests. Participants may collec…

This description comes directly from the study's public registry record.

Talk to the study team

NIEHS Join A Study Recruitment Group  ·  (855) 696-4347  ·  myniehs@nih.gov

Lawrence S Kirschner, M.D.  ·  (984) 287-3562  ·  lawrence.kirschner@nih.gov

Always discuss trial participation with your own doctor first.

Locations (1)

NIEHS Clinical Research Unit (CRU)Research Triangle Park, North Carolina, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT04888923