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Showing 1–24 of 45 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: Lipopolysaccharide 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 12, 2026, 11:05 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 12, 2026, 11:05 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 12, 2026, 11:05 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 12, 2026, 11:05 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 12, 2026, 11:05 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 12, 2026, 11:05 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 12, 2026, 11:05 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 12, 2026, 11:05 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Shigella Flexneri 2a Invaplex 50 Vaccine Dose Finding and Assessment of Protection

NCT00485134
View directory record Official record
Conditions
Shigellosis
Interventions
240 µg Shigella flexneri 2a Invaplex 50 vaccine, 480 µg Shigella flexneri 2a Invaplex 50 vaccine, 690 Shigella flexneri 2a Invaplex 50 vaccine, Shigella challenge strain
Biological · Other
Lead sponsor
U.S. Army Medical Research and Development Command
Federal
Eligibility
18 Years to 45 Years
Enrollment
113 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2010
U.S. locations
2
States / cities
Baltimore, Maryland • Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 10, 2017 · Synced Sep 12, 2026, 11:05 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 12, 2026, 11:05 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 12, 2026, 11:05 AM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Immune Cell Response to Stimuli

NCT00397280
View directory record Official record
Conditions
Inflammation
Interventions
Not listed
Lead sponsor
National Institute of Environmental Health Sciences (NIEHS)
NIH
Eligibility
18 Years to 65 Years
Enrollment
750 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2009
U.S. locations
1
States / cities
Research Triangle Park, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 31, 2026 · Synced Sep 12, 2026, 11:05 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 12, 2026, 11:05 AM EDT
Recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Neural Response to Inflammatory Challenge in Major Depressive Disorder

NCT04751331
View directory record Official record
Conditions
Major Depressive Disorder
Interventions
LPS, Saline
Biological
Lead sponsor
Laureate Institute for Brain Research, Inc.
Other
Eligibility
18 Years to 65 Years
Enrollment
180 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
1
States / cities
Tulsa, Oklahoma
Source: ClinicalTrials.gov public record
Updated Apr 20, 2026 · Synced Sep 12, 2026, 11:05 AM EDT
Completed Phase 1 Interventional

Vaccination of HIV-1 Infected Patients With Dendritic Cells in Addition to Antiretroviral Treatment - (DALIA Trial)

NCT00796770
View directory record Official record
Conditions
HIV
Interventions
Dendritic Cell Vaccine
Biological
Lead sponsor
Baylor Research Institute
Other
Eligibility
18 Years and older
Enrollment
19 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jun 11, 2017 · Synced Sep 12, 2026, 11:05 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 12, 2026, 11:05 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 12, 2026, 11:05 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 12, 2026, 11:05 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 12, 2026, 11:05 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Leprosy Skin Test Antigens Trial

NCT00128193
View directory record Official record
Conditions
Leprosy
Interventions
Tuberculin, Purified Protein Derivative, MLSA-LAM, MLCwA, Placebo
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 60 Years
Enrollment
260 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2009
U.S. locations
1
States / cities
Fort Collins, Colorado
Source: ClinicalTrials.gov public record
Updated Dec 23, 2014 · Synced Sep 12, 2026, 11:05 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 12, 2026, 11:05 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 12, 2026, 11:05 AM EDT
Not yet recruiting Phase 2 Interventional

Inulin Supplementation for Reducing Inflammation and Knee Pain in Older Adults With Osteoarthritis

NCT07189585
View directory record Official record
Conditions
Knee Osteoarthritis
Interventions
inulin, Maltodextrin (Placebo)
Drug
Lead sponsor
Yale University
Other
Eligibility
40 Years and older
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
West Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Jul 6, 2026 · Synced Sep 12, 2026, 11:05 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 12, 2026, 11:05 AM EDT