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Showing 1–24 of 38 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: LPS endotoxin Clear all
Recruiting Not applicable Interventional Accepts healthy volunteers

Alveolar Macrophage Programming Following Endotoxin Exposure

NCT03859050
View directory record Official record
Conditions
ARDS, Human
Interventions
bronchoscopy with intrabronchial administration of lipopolysaccharide
Other
Lead sponsor
National Jewish Health
Other
Eligibility
18 Years to 50 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2032
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated May 5, 2025 · Synced Sep 13, 2026, 5:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Neuroimmune Response to Lipopolysaccharide

NCT04233593
View directory record Official record
Conditions
Healthy
Interventions
Lipopolysaccharide
Biological
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2021
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 18, 2022 · Synced Sep 13, 2026, 5:49 AM EDT
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 13, 2026, 5:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Phase I, Randomized, Double-Blind, Placebo-Controlled, Clinical Trial to Compare the Safety and Immunogenicity of Recombinant Envelope Protein rgp120/HIV-1SF2 (BIOCINE) Combined With Seven Adjuvants in Healthy HIV-1 Uninfected Individuals

NCT00001042
View directory record Official record
Conditions
HIV Infections
Interventions
Aluminum hydroxide, Lipid A, Monophosphoryl, Lipid A, Liposome-encapsulated monophosphoryl, Syntex adjuvant formulation, MF59, Threonyl Muramyl Dipeptide, rgp120/HIV-1 SF-2, MTP-PE/MF59
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 60 Years
Enrollment
112 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Ends 1996
U.S. locations
3
States / cities
St Louis, Missouri • Rochester, New York • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Nov 3, 2021 · Synced Sep 13, 2026, 5:49 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

The Genetics of Evoked Responses to Niacin and Endotoxemia: The GENE Study

NCT00953667
View directory record Official record
Conditions
Healthy Volunteers
Interventions
Immediate Release Niacin, Extended Release Niacin, Endotoxin
Drug
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 45 Years
Enrollment
400 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2011
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 23, 2016 · Synced Sep 13, 2026, 5:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Role of TLR4 in Environmental Asthma

NCT00671892
View directory record Official record
Conditions
Asthma
Interventions
Lipopolysaccharide endotoxin
Biological
Lead sponsor
John Sundy
Other
Eligibility
18 Years to 40 Years
Enrollment
855 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2008
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 15, 2013 · Synced Sep 13, 2026, 5:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Effects of TT301 on Cytokine Levels Post Endotoxin Challenge

NCT01357421
View directory record Official record
Conditions
Traumatic Brain Injury
Interventions
TT301, Placebo
Drug
Lead sponsor
OPKO Health, Inc.
Industry
Eligibility
18 Years to 40 Years · Male only
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 5, 2013 · Synced Sep 13, 2026, 5:49 AM 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 13, 2026, 5:49 AM EDT
Completed Phase 1 Interventional Results available

Feasibility Study of Intra-Tumoral Lipopolysaccharide Immunotherapy for Intra-Abdominal Tumors

NCT05751837
View directory record Official record
Conditions
Abdominal Cancer, Malignancy
Interventions
Lipopolysaccharide
Biological
Lead sponsor
Patrick Wagner, MD, FACS
Other
Eligibility
18 Years to 99 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
2
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 14, 2026 · Synced Sep 13, 2026, 5:49 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Inflammation and the Metabolic Syndrome in Humans

NCT00954824
View directory record Official record
Conditions
Metabolic Syndrome X
Interventions
Endotoxin (LPS)
Biological
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 40 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2007
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Mar 29, 2017 · Synced Sep 13, 2026, 5:49 AM EDT
Completed Phase 1 Interventional Results available

Lipopolysaccharide (LPS) Challenge in Depression

NCT03142919
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
Lipopolysaccharide, Placebo
Biological
Lead sponsor
Laureate Institute for Brain Research, Inc.
Other
Eligibility
18 Years to 55 Years
Enrollment
64 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Tulsa, Oklahoma
Source: ClinicalTrials.gov public record
Updated Jul 1, 2025 · Synced Sep 13, 2026, 5:49 AM EDT
Withdrawn Early Phase 1 Interventional Accepts healthy volunteers

Theophylline for Depression Study

NCT04309877
View directory record Official record
Conditions
Depression
Interventions
Theophylline ER, PO placebo, Lipopolysaccharide (LPS), IV placebo
Drug · Other · Biological
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Nov 4, 2021 · Synced Sep 13, 2026, 5:49 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Wilm's Tumor 1 Protein Vaccine to Treat Cancers of the Blood

NCT00923910
View directory record Official record
Conditions
Leukemia, Acute Myelogenous (AML), Leukemia, Acute Lymphocytic (ALL), Leukemia, Chronic Myelogenous (CML), Myelodysplastic Syndrome (MDS), Non-Hodgkin's Lymphoma (NHL)
Interventions
WT1 Peptide-Pulsed Dendritic Cells, Donor Lymphocytes, IL-4, KLH, WT1 Peptides, Endotoxin, Diphenhydramine, Acetaminophen
Drug
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
1 Year to 74 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2016
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 11, 2017 · Synced Sep 13, 2026, 5:49 AM 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 13, 2026, 5:49 AM 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 13, 2026, 5:49 AM EDT
Terminated Early Phase 1 Interventional Accepts healthy volunteers Results available

Leucine for Depression Study (L-DEP)

NCT03557684
View directory record Official record
Conditions
Depression
Interventions
leucine, PO placebo, lipopolysaccharide (LPS), IV placebo
Dietary Supplement · Other · Biological
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 65 Years
Enrollment
59 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2021
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jun 7, 2023 · Synced Sep 13, 2026, 5:49 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Dose Response Effects of Marine Omega-3 Fatty Acids on Inflammation

NCT01078909
View directory record Official record
Conditions
Cardiovascular Disease, Inflammation
Interventions
Eicosapentaenoic Acid and Docosahexaenoic Acid (EPA + DHA)
Biological
Lead sponsor
Penn State University
Other
Eligibility
20 Years to 45 Years
Enrollment
125 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
University Park, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 20, 2023 · Synced Sep 13, 2026, 5:49 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

CBD-Microglia PET Study

NCT04398719
View directory record Official record
Conditions
CBD, Healthy
Interventions
[11C]PBR28, Low-dose lipopolysaccharide, Intradermal Capsaicin
Radiation · Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2024
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Apr 28, 2026 · Synced Sep 13, 2026, 5:49 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Imaging the Neuroimmune System in PTSD

NCT04236986
View directory record Official record
Conditions
Post Traumatic Stress Disorder
Interventions
Lipopolysaccharide
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 55 Years
Enrollment
34 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Dec 8, 2024 · Synced Sep 13, 2026, 5:49 AM 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 13, 2026, 5:49 AM 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 13, 2026, 5:49 AM EDT
Terminated Phase 1 Interventional Accepts healthy volunteers

Nitric Oxide, LPS and the Pathogenesis of Asthma Phase II

NCT00643058
View directory record Official record
Conditions
Healthy
Interventions
LPS endotoxin
Biological
Lead sponsor
John Sundy
Other
Eligibility
18 Years to 40 Years
Enrollment
70 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2009
U.S. locations
1
States / cities
Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jul 15, 2013 · Synced Sep 13, 2026, 5:49 AM 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 13, 2026, 5:49 AM EDT
Completed Phase 2Phase 3 Interventional Accepts healthy volunteers Results available

The Innate Central Nervous System Immune Response to an Experimental Immune Challenge in People With Fibromyalgia

NCT04263454
View directory record Official record
Conditions
Fibromyalgia
Interventions
Endotoxin, Escherichia Coli, Magnetic Resonance Spectroscopy
Drug · Procedure
Lead sponsor
University of Alabama at Birmingham
Other
Eligibility
18 Years to 55 Years · Female only
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
1
States / cities
Birmingham, Alabama
Source: ClinicalTrials.gov public record
Updated Apr 13, 2023 · Synced Sep 13, 2026, 5:49 AM EDT