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Showing 1–24 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Reference Endotoxin Clear all
Terminated Phase 1 Interventional Accepts healthy volunteers

Range of Neutrophil Response to 20,000 EU of Clinical Center Reference Endotoxin in Otherwise Healthy Smokers

NCT00753870
View directory record Official record
Conditions
Healthy Smokers
Interventions
CCRE inhalation
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 50 Years
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 17, 2011 · Synced Sep 11, 2026, 2:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study of Inhalation of 20,000 EU CCRE in Normal Volunteers Compared to Allergic Asthmatic Individuals

NCT00839124
View directory record Official record
Conditions
Asthma, Hypersensitivity
Interventions
Clinical Center Reference Endotoxin (CCRE)
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 50 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2012
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 4, 2012 · Synced Sep 11, 2026, 2:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

The Effects of Hydrocortisone in Endotoxemia in Normal Volunteers

NCT01064986
View directory record Official record
Conditions
Infections
Interventions
Endotoxin, Lipopolysaccharide, LPS, Endotoxin, Lipopolysaccharide, LPS /Epinephrine, Placebo, Hydrocortisone
Biological
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 40 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated May 21, 2014 · Synced Sep 11, 2026, 2:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of 20,000 EU of Clinical Center Reference Endotoxin (CCRE) Versus Placebo(ENDOHEART)

NCT03623022
View directory record Official record
Conditions
Healthy
Interventions
Clinical Center Reference Endotoxin (CCRE), Normal saline
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 50 Years
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 19, 2019 · Synced Sep 11, 2026, 2:04 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Assessing NOS Uptake With PET Imaging in Lung Inflammation

NCT02151552
View directory record Official record
Conditions
Lung Inflammation
Interventions
Endotoxin (E. coli O:113, Reference Endotoxin), [18F](+/-)NOS
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
19 Years to 44 Years
Enrollment
3 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2018
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jul 22, 2018 · Synced Sep 11, 2026, 2:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Systemic Inflammatory Response to CCRE

NCT02847247
View directory record Official record
Conditions
Healthy
Interventions
CCRE
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 50 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 19, 2019 · Synced Sep 11, 2026, 2:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Inhalation of 20,000 Endotoxin Units(EU) of Clinical Center Reference Endotoxin in Healthy Volunteers

NCT00654134
View directory record Official record
Conditions
Healthy Adults
Interventions
Clinical Center Reference Endotoxin
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 50 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2013
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 8, 2013 · Synced Sep 11, 2026, 2:04 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers Results available

Quantifying Airway Inflammation With Radiologic Tests

NCT00741013
View directory record Official record
Conditions
Lung Inflammation
Interventions
placebo pill and placebo IV, Lovastatin pill and placebo IV, placebo pill and recombinant human activated protein C IV, Endotoxin
Drug · Biological
Lead sponsor
Washington University School of Medicine
Other
Eligibility
19 Years to 44 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated May 25, 2014 · Synced Sep 11, 2026, 2:04 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Response of Airway Cells to 20,000 EU of Endotoxin in Normal Adults

NCT00838851
View directory record Official record
Conditions
Healthy Controls
Interventions
Clinical Center Reference Endotoxin (CCRE)
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 50 Years
Enrollment
26 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2012
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 7, 2012 · Synced Sep 11, 2026, 2:04 PM EDT
Completed Phase 1 Interventional

Effects of Endotoxin in Normal Human Volunteers

NCT00001303
View directory record Official record
Conditions
Healthy, Lung Disease, Sepsis, Septic Shock
Interventions
Reference Endotoxin, Inhaled Nitric Oxide
Drug
Lead sponsor
National Institutes of Health Clinical Center (CC)
NIH
Eligibility
18 Years to 45 Years
Enrollment
198 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1992 – 2018
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 4, 2018 · Synced Sep 11, 2026, 2:04 PM EDT
Not yet recruiting Phase 1 Interventional Accepts healthy volunteers

Nasal Inflammation Following Endotoxin Challenge in Patients With Asthma

NCT06270576
View directory record Official record
Conditions
Asthma; Eosinophilic, Asthma
Interventions
Lipopolysaccharides
Drug
Lead sponsor
National Jewish Health
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2028
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Feb 20, 2024 · Synced Sep 11, 2026, 2:04 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study of the Efficacy and Safety of Intravenous vs Oral Acetaminophen for Treatment of Fever in Healthy Adult Males

NCT00564629
View directory record Official record
Conditions
Fever
Interventions
Intravenous acetaminophen plus oral placebo, Oral acetaminophen plus IV placebo, Reference standard endotoxin (RSE)
Drug · Biological
Lead sponsor
Mallinckrodt
Industry
Eligibility
18 Years to 75 Years · Male only
Enrollment
105 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Knoxville, Tennessee
Source: ClinicalTrials.gov public record
Updated Oct 18, 2016 · Synced Sep 11, 2026, 2:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Gamma Tocopherol Supplementation on Neutrophil Response to 20,000 EU of Clinical Center Reference Endotoxin in Normal Adults

NCT00631085
View directory record Official record
Conditions
Healthy
Interventions
gamma tocopherol
Drug
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 50 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 17, 2011 · Synced Sep 11, 2026, 2:04 PM EDT
Terminated Phase 1 Interventional

Safety Study of 20,000 EU of Clinical Center Reference Endotoxin in Allergic Adults With and Without Mild Asthma

NCT00630461
View directory record Official record
Conditions
Mild Allergic Rhinitis, Mild Allergic Rhinitis With Mild Asthma
Interventions
Clinical Center Reference Endotoxin
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 50 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2012
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Oct 7, 2012 · Synced Sep 11, 2026, 2:04 PM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Genetics of Asthma - Bronchoscopy Studies

NCT00644514
View directory record Official record
Conditions
Atopic Asthma, Healthy
Interventions
Endotoxin - lipopolysaccharide (LPS)
Biological
Lead sponsor
John Sundy
Other
Eligibility
18 Years to 40 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2008
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 15, 2013 · Synced Sep 11, 2026, 2:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Dose-Related Inflammatory Effects of Intravenous Endotoxin in Humans

NCT02789241
View directory record Official record
Conditions
Healthy
Interventions
Endotoxin, Placebo
Biological · Other
Lead sponsor
Robert J Noveck, M.D.
Other
Eligibility
18 Years to 40 Years
Enrollment
23 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 10, 2017 · Synced Sep 11, 2026, 2:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

PET Imaging of Endotoxin-induced iNOS Activation

NCT01407796
View directory record Official record
Conditions
Pneumonia
Interventions
Endotoxin (E. coli O:113, Reference Endotoxin), [18F](+/-)NOS
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
19 Years to 44 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2012
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 20, 2014 · Synced Sep 11, 2026, 2:04 PM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Inflammatory Challenge in Human Aggression.

NCT06665074
View directory record Official record
Conditions
Intermittent Explosive Disorder
Interventions
Endotoxin (E. coli O:113, Reference Endotoxin), Saline (Placebo)
Biological · Other
Lead sponsor
Ohio State University
Other
Eligibility
21 Years to 55 Years
Enrollment
112 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2030
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 26, 2026 · Synced Sep 11, 2026, 2:04 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Safety of Intravenous Acetaminophen Vs Placebo for the Treatment of Endotoxin-Induced Fever in Healthy Adult Males

NCT00493311
View directory record Official record
Conditions
Fever
Interventions
IV Placebo, IV Acetaminophen, Reference Standard Endotoxin (RSE)
Drug · Biological
Lead sponsor
Mallinckrodt
Industry
Eligibility
18 Years to 75 Years · Male only
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Oct 18, 2016 · Synced Sep 11, 2026, 2:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of a 10,000 EU Dose of Endotoxin in Allergic and Mildly Asthmatic Adults

NCT00839189
View directory record Official record
Conditions
Rhinitis, Allergic, Perennial, Rhinitis, Allergic, Seasonal, Asthma
Interventions
Clinical Center Reference Endotoxin (CCRE)
Biological
Lead sponsor
University of North Carolina, Chapel Hill
Other
Eligibility
18 Years to 50 Years
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2006
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Dec 8, 2009 · Synced Sep 11, 2026, 2:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Inflammation and the Host Response to Injury (In Healthy Volunteers)

NCT00820989
View directory record Official record
Conditions
Immune System
Interventions
Endotoxin, Lipopolysaccharide, LPS
Biological
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 40 Years
Enrollment
116 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2000 – 2011
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated May 20, 2014 · Synced Sep 11, 2026, 2:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Feasibility of an Endotoxemia Model

NCT01329965
View directory record Official record
Conditions
Cardiovascular Disease, Inflammation
Interventions
LPS (reference endotoxin, E. coli O113:H10:K:neg, manufactured under GMP)
Drug
Lead sponsor
Penn State University
Other
Eligibility
20 Years to 35 Years
Enrollment
6 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 20, 2023 · Synced Sep 11, 2026, 2:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effect of Interleukin-1 Receptor Antagonist on Inhalation of 20,000 EU Clinical Ctr Reference Endotoxin in Normal Volunteers

NCT01369017
View directory record Official record
Conditions
Healthy Control Subjects
Interventions
Anakinra, Placebo
Drug
Lead sponsor
Michelle Hernandez, MD
Other
Eligibility
18 Years to 50 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 14, 2013 · Synced Sep 11, 2026, 2:04 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

The Effects of Epinephrine in Endotoxemia in Normal Volunteers

NCT00753402
View directory record Official record
Conditions
Immune System
Interventions
Endotoxin, Lipopolysaccharide, LPS, Endotoxin, Epinephrine
Biological
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 40 Years
Enrollment
37 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012
U.S. locations
1
States / cities
New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated May 26, 2015 · Synced Sep 11, 2026, 2:04 PM EDT