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ClinicalTrials.gov public records Last synced Oct 22, 2026, 7:10 PM EDT

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Showing 433–456 of 1,048 matching trials from the live ClinicalTrials.gov search.
Filters: Condition: Immunity Clear all
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Immune Response & Safety of a Hepatitis A Vaccine Given Together With a Pneumococcal Vaccine in Healthy Children 15 m of Age

NCT00197002
View directory record Official record
Conditions
Hepatitis A
Interventions
GSK Biologicals 2-dose inactivated hepatitis A vaccine (Havrix), Prevnar™
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
12 Months to 13 Months
Enrollment
521 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2006
U.S. locations
18
States / cities
Centennial, Colorado • Bardstown, Kentucky • Louisville, Kentucky + 13 more
Source: ClinicalTrials.gov public record
Updated Aug 6, 2018 · Synced Oct 22, 2026, 7:10 PM EDT
Completed No phase listed Observational

Natural History of Systemic and Nasal Mucosal Immunity to Influenza and SARS-CoV-2 in Adults After Vaccination

NCT04794829
View directory record Official record
Conditions
Influenza, COVID-19
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 120 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2026
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 30, 2026 · Synced Oct 22, 2026, 7:10 PM EDT
Completed Phase 1 Interventional Results available

AMP-224, a PD-1 Inhibitor, With Stereotactic Body Radiation Therapy in Metastatic Colorectal Cancer

NCT02298946
View directory record Official record
Conditions
Colorectal Cancer, Colorectal Neoplasms, Colorectal Carcinoma
Interventions
AMP-224, Stereotactic Body Radiation Therapy(SBRT), Cyclophosphamide
Drug · Radiation
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 99 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2017
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 22, 2019 · Synced Oct 22, 2026, 7:10 PM EDT
Completed Phase 2 Interventional

Mucosal and Systemic Immunity After Viral Challenge of Healthy Volunteers Vaccinated With Inactivated Influenza Vaccine Via the Intranasal Versus Intramuscular Route

NCT03845231
View directory record Official record
Conditions
Influenza
Interventions
Flucelvax(R), Human Challenge virus
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 55 Years
Enrollment
82 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Nov 10, 2020 · Synced Oct 22, 2026, 7:10 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Predicting Responsiveness in Oncology Patients Based on Host Response Evaluation During Anti Cancer Treatments, Using Multiomics

NCT05736029
View directory record Official record
Conditions
Non Small Cell Lung Cancer, Healthy
Interventions
blood, stool and tissue samples collection
Other
Lead sponsor
OncoHost Ltd.
Industry
Eligibility
18 Years and older
Enrollment
350 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2028
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Feb 21, 2023 · Synced Oct 22, 2026, 7:10 PM EDT
Completed No phase listed Observational

Immune Response Under Immunotherapy in Metastatic NSCLC: Sputum, Blood Samples and Microbioata Study

NCT04804137
View directory record Official record
Conditions
Non-squamous Lung Cancer, Metastatic Lung Cancer
Interventions
Blood, sputum, saliva, stool
Other
Lead sponsor
University Hospital, Tours
Other
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 17, 2024 · Synced Oct 22, 2026, 7:10 PM EDT
Recruiting Phase 1Phase 2 Interventional Accepts healthy volunteers

Human Immune Response to Ixodes Scapularis Tick Bites

NCT05036707
View directory record Official record
Conditions
Tick-borne Diseases, Tick Resistance, Lyme Disease
Interventions
Xenodiagnosis Ticks, skin biopsy, blood draw
Device · Procedure
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 99 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2029
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 22, 2026 · Synced Oct 22, 2026, 7:10 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects on the Immune System of Anti-HIV Drugs in Patients Recently Infected With HIV

NCT00001119
View directory record Official record
Conditions
HIV Infections
Interventions
Tetanus Toxoid Vaccine, Indinavir sulfate, Lamivudine/Zidovudine, Ritonavir, Abacavir sulfate, Amprenavir, Efavirenz, Hepatitis B Vaccine (Recombinant), Lamivudine, Zidovudine
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
16 Years and older
Enrollment
288 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 1999
U.S. locations
11
States / cities
San Francisco, California • Chicago, Illinois • Boston, Massachusetts + 6 more
Source: ClinicalTrials.gov public record
Updated Mar 2, 2011 · Synced Oct 22, 2026, 7:10 PM EDT
Completed Not applicable Interventional Results available

Mucosal Immunity of Ulcerative Colitis Patients Undergoing Therapy With Trichuris Suis Ova

NCT01433471
View directory record Official record
Conditions
Ulcerative Colitis
Interventions
Trichuris suis ova
Drug
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years to 72 Years
Enrollment
4 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 1, 2016 · Synced Oct 22, 2026, 7:10 PM EDT
Terminated Early Phase 1 Interventional Accepts healthy volunteers

WU 345: Immune Responses to Adjuvanted and Non-adjuvanted Seasonal Influenza Vaccines in the Lymphoid Tissues.

NCT07386509
View directory record Official record
Conditions
Healthy
Interventions
Fluad® and Afluria® vaccination
Drug
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 49 Years
Enrollment
2 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced Oct 22, 2026, 7:10 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Immune Response to Varicella Vaccination in Children With Atopic Dermatitis

NCT00406081
View directory record Official record
Conditions
Atopic Dermatitis
Interventions
Not listed
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
12 Months to 36 Months
Enrollment
69 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2009
U.S. locations
2
States / cities
Denver, Colorado • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 11, 2017 · Synced Oct 22, 2026, 7:10 PM EDT
Completed No phase listed Observational

Inflammation and the Host Response to Injury (Burns)

NCT00257244
View directory record Official record
Conditions
Trauma, Burns, Multiple Organ Failure
Interventions
Not listed
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
Not listed
Enrollment
280 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2018
U.S. locations
4
States / cities
Maywood, Illinois • Dallas, Texas • Galveston, Texas + 1 more
Source: ClinicalTrials.gov public record
Updated Mar 7, 2019 · Synced Oct 22, 2026, 7:10 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immune Response to a Live-Attenuated Respiratory Syncytial Virus (RSV) Vaccine in RSV-Seronegative Infants and Children

NCT02237209
View directory record Official record
Conditions
Respiratory Syncytial Virus Infections
Interventions
RSV LID ΔM2-2 Vaccine, Placebo Vaccine
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
6 Months to 24 Months
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2015
U.S. locations
7
States / cities
Alhambra, California • La Jolla, California • Aurora, Colorado + 3 more
Source: ClinicalTrials.gov public record
Updated Oct 8, 2015 · Synced Oct 22, 2026, 7:10 PM EDT
Recruiting Phase 1 Interventional Accepts healthy volunteers

A Vaccine (CMV-MVA Triplex Vaccine) for the Enhancement of CMV-Specific Immunity and the Prevention of CMV Viremia in Patients Undergoing Haploidentical Hematopoietic Stem Cell Transplant

NCT07020533
View directory record Official record
Conditions
Accelerated Phase Chronic Myeloid Leukemia, BCR-ABL1 Positive, Acute Lymphoblastic Leukemia, Acute Myeloid Leukemia, Chronic Lymphocytic Leukemia, Chronic Phase Chronic Myeloid Leukemia, BCR-ABL1 Positive, Hematopoietic and Lymphatic System Neoplasm, Hodgkin Lymphoma, Lymphoblastic Lymphoma, Myelodysplastic Syndrome, Myelofibrosis, Myeloproliferative Neoplasm, Non-Hodgkin Lymphoma
Interventions
Biospecimen Collection, Electronic Health Record Review, Haploidentical Hematopoietic Cell Transplantation, Letermovir, Multi-peptide CMV-Modified Vaccinia Ankara Vaccine, Myeloablative Conditioning, Pheresis, Recombinant Granulocyte Colony-Stimulating Factor
Procedure · Other · Drug + 1 more
Lead sponsor
City of Hope Medical Center
Other
Eligibility
18 Years to 75 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2029
U.S. locations
3
States / cities
Duarte, California • Atlanta, Georgia • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 28, 2026 · Synced Oct 22, 2026, 7:10 PM EDT
Recruiting No phase listed Observational

A Long Term, Post-marketing Study of Immune Response in Patients Receiving Palynziq Treatment for PKU (PALisade)

NCT06305234
View directory record Official record
Conditions
Phenylketonuria (PKU)
Interventions
Pegvaliase
Drug
Lead sponsor
BioMarin Pharmaceutical
Industry
Eligibility
Not listed
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2033
U.S. locations
11
States / cities
Aurora, Colorado • Atlanta, Georgia • Chicago, Illinois + 8 more
Source: ClinicalTrials.gov public record
Updated Mar 24, 2026 · Synced Oct 22, 2026, 7:10 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Bacterial Composition and Immune Responses in the Nose and Oropharynx During Influenza Infection

NCT02597647
View directory record Official record
Conditions
Influenza
Interventions
LAIV, Saline
Biological · Other
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 64 Years
Enrollment
17 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Jan 22, 2026 · Synced Oct 22, 2026, 7:10 PM EDT
Completed Not applicable Interventional

Investigating and Characterizing the Immune Response to Prostate Cancer

NCT03331367
View directory record Official record
Conditions
Prostate Cancer
Interventions
Blood draw, Urine sample
Procedure
Lead sponsor
NYU Langone Health
Other
Eligibility
18 Years and older · Male only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Mineola, New York
Source: ClinicalTrials.gov public record
Updated Aug 7, 2020 · Synced Oct 22, 2026, 7:10 PM EDT
Completed Phase 2 Interventional Results available

Combination Immunotherapy in Biochemically Recurrent Prostate Cancer

NCT03315871
View directory record Official record
Conditions
Prostate Cancer
Interventions
Antigen direct immunotherapy: PROSTVAC-V, Antigen direct immunotherapy: PROSTVAC-F, MSB0011359C (M7824), Antigen direct immunotherapy: CV301, CT scan of chest, CT scan of abdomen/pelvis, MRI, PSMA, Bone scan
Biological · Drug · Diagnostic Test
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years and older · Male only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2024
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 19, 2025 · Synced Oct 22, 2026, 7:10 PM EDT
Recruiting Phase 1 Interventional

TLR-9 Adjuvanted Vaccination for Chronic Hepatitis B

NCT04843852
View directory record Official record
Conditions
Hepatitis B, Chronic Hepatitis B
Interventions
Hepatitis B Vaccine Recombinant, Adjuvanted Intramuscular Solution [HEPLISAV-B]
Drug
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 20, 2025 · Synced Oct 22, 2026, 7:10 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study to Evaluate the Immune Response After a Booster Dose of a Quadrivalent Meningococcal (MenACYW) Conjugate Vaccine When Administered Alone or Concomitantly With a Licensed Meningococcal Serogroup B Vaccine, in Participants Who Received Primary Quadrivalent Meningococcal Conjugate Vaccine (MCV4)

NCT04084769
View directory record Official record
Conditions
Meningococcal Immunisation (Healthy Volunteers)
Interventions
Meningococcal polysaccharide (serogroups A, C, Y, and W) tetanus toxoid Conjugate vaccine MenACYW Conjugate vaccine, Meningococcal Group B vaccine (Trumenba®), Meningococcal group B vaccine (Bexsero®)
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
13 Years to 26 Years
Enrollment
570 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
29
States / cities
Birmingham, Alabama • San Diego, California • Bardstown, Kentucky + 20 more
Source: ClinicalTrials.gov public record
Updated Sep 15, 2025 · Synced Oct 22, 2026, 7:10 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers

A Study on the Reactogenicity, Safety, Immune Response, and Efficacy of a Targeted Immunotherapy Against HSV in Healthy Participants Aged 18-40 Years or in Participants Aged 18-60 Years With Recurrent Genital Herpes

NCT05298254
View directory record Official record
Conditions
Herpes Simplex
Interventions
Non-adjuvanted HSV formulation 1, Non-adjuvanted HSV formulation 2, Non-adjuvanted HSV formulation 3, HSV formulation 1 with adjuvant 1, HSV formulation 2 with adjuvant 1, HSV formulation 3 with adjuvant 1, HSV formulation 1 with adjuvant 2, HSV formulation 2 with adjuvant 2, HSV formulation 3 with adjuvant 2, Placebo, HSVTI_F1, HSVTI_F2
Biological · Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 60 Years
Enrollment
505 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
6
States / cities
Phoenix, Arizona • Wichita, Kansas • Kansas City, Missouri + 3 more
Source: ClinicalTrials.gov public record
Updated Sep 8, 2025 · Synced Oct 22, 2026, 7:10 PM EDT
Completed Phase 2 Interventional Results available

Study of the Safety and Immune Response of a Meningococcal Vaccine Administered to Healthy Children

NCT00262028
View directory record Official record
Conditions
Prevention of Meningococcal Disease
Interventions
MenACWY-CRM Vaccine, MenACWY-PS Vaccine
Biological
Lead sponsor
Novartis Vaccines
Industry
Eligibility
12 Months to 10 Years
Enrollment
910 participants
Timeline
2005 – 2006
U.S. locations
1
States / cities
Oakland, California
Source: ClinicalTrials.gov public record
Updated Feb 11, 2016 · Synced Oct 22, 2026, 7:10 PM EDT
Completed No phase listed Observational

HostDx Sepsis in the Diagnosis and Prognosis of Emergency Department Patients With Suspected Infections: a Multicenter Pilot Study

NCT03744741
View directory record Official record
Conditions
Respiratory Tract Infections, Urinary Tract Infections, Skin and Soft Tissue Infections, Intraabdominal Infections, Sepsis
Interventions
HostDx Sepsis
Diagnostic Test
Lead sponsor
Inflammatix
Industry
Eligibility
18 Years and older
Enrollment
585 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
6
States / cities
Atlanta, Georgia • Lexington, Kentucky • Springfield, Massachusetts + 3 more
Source: ClinicalTrials.gov public record
Updated Dec 3, 2021 · Synced Oct 22, 2026, 7:10 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of and Immune Response to a Tick-Borne Encephalitis Vaccine (LGT(TP21)/DEN4) in Healthy Adults

NCT00118924
View directory record Official record
Conditions
Tick-Borne Encephalitis
Interventions
LGT(TP21)/DEN4, Placebo
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005 – 2007
U.S. locations
1
States / cities
Nashville, Tennessee
Source: ClinicalTrials.gov public record
Updated Jan 21, 2008 · Synced Oct 22, 2026, 7:10 PM EDT