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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Vaccine Response Clear all
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Safety and Immune Response Study to Evaluate Varying Doses of an mRNA Vaccine Against Coronavirus Disease 2019 (COVID-19) in Healthy Adults

NCT05972993
View directory record Official record
Conditions
COVID-19
Interventions
mRNA-CR-04 vaccine 10μg, mRNA-CR-04 vaccine 30μg, mRNA-CR-04 vaccine 100μg, Placebo, mRNA-CR-04 vaccine 3μg
Biological · Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 49 Years
Enrollment
114 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
4
States / cities
San Diego, California • Melbourne, Florida • Peoria, Illinois + 1 more
Source: ClinicalTrials.gov public record
Updated May 27, 2025 · Synced Sep 24, 2026, 1:24 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

A Trial to Evaluate the Safety and Systems Biology Response of Ebolavirus Zaire Vaccine (ChAd3-EBO-Z)

NCT03583606
View directory record Official record
Conditions
Ebola Disease, Immunisation
Interventions
ChAd3-EBO-Z, MVA Multi-Filo Ebola Vaccine, Placebo
Biological · Other
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 45 Years
Enrollment
61 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2020
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 28, 2025 · Synced Sep 24, 2026, 1:24 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Systems Biology of Zoster Vaccine

NCT04047979
View directory record Official record
Conditions
Zoster, Zoster Varicella, Shingles, Chicken Pox
Interventions
Shingrix®
Biological
Lead sponsor
Emory University
Other
Eligibility
50 Years and older
Enrollment
38 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
1
States / cities
Decatur, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 29, 2024 · Synced Sep 24, 2026, 1:24 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Beta-glucan and Immune Response to Influenza Vaccine

NCT05074303
View directory record Official record
Conditions
Healthy Aging
Interventions
Influenza Vaccine, Beta-glucan, Placebo
Biological · Dietary Supplement
Lead sponsor
University of Florida
Other
Eligibility
50 Years to 100 Years
Enrollment
78 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Gainesville, Florida
Source: ClinicalTrials.gov public record
Updated Nov 5, 2025 · Synced Sep 24, 2026, 1:24 PM EDT
Active, not recruiting Early Phase 1 Interventional Accepts healthy volunteers

Evaluating the Human Immune Response to the JYNNEOS Vaccine

NCT06366672
View directory record Official record
Conditions
Vaccinia, Virus Diseases
Interventions
JYNNEOS (Smallpox and Monkeypox Vaccine, Live, Nonreplicating) suspension for subcutaneous injection, Phlebotomy, Research bronchoscopy, Skin punch biopsy, Bone marrow aspiration
Biological · Procedure
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years to 60 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Oct 15, 2025 · Synced Sep 24, 2026, 1:24 PM EDT
Recruiting Phase 3 Interventional Accepts healthy volunteers

A Study on the Immune Response and Safety of an Investigational Chickenpox Vaccine When Given to Healthy Children 12 to 15 Months of Age

NCT06740630
View directory record Official record
Conditions
Chickenpox
Interventions
Investigational varicella vaccine_Lot 1, Investigational varicella vaccine_Lot 2, Investigational varicella vaccine_Lot 3, Marketed varicella vaccine_Lot 1, Marketed varicella vaccine_Lot 2, MMR vaccine, Hepatitis A vaccine, PCV (pneumococcal conjugate vaccine) 13, PCV 20, Vaxneuvance
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
12 Months to 15 Months
Enrollment
1,840 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
59
States / cities
Mobile, Alabama • Hot Springs, Arkansas • Sherwood, Arkansas + 50 more
Source: ClinicalTrials.gov public record
Updated May 28, 2026 · Synced Sep 24, 2026, 1:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Immunological Consequences of Obstructive Sleep Apnea

NCT00214071
View directory record Official record
Conditions
Obstructive Sleep Apnea
Interventions
Influenza vaccine
Biological
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2006
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 4, 2015 · Synced Sep 24, 2026, 1:24 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Vaccine Observation to Include All Communities for Equitable Science

NCT04770649
View directory record Official record
Conditions
Vaccine Response Impaired, Vaccine Adverse Reaction
Interventions
COVID-19 vaccine
Biological
Lead sponsor
Persephone Biosciences
Industry
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Apr 4, 2024 · Synced Sep 24, 2026, 1:24 PM EDT
Completed Phase 2 Interventional Results available

HEPLISAV-B Hepatitis B Vaccine in Chronic Lymphocytic Leukemia (CLL) and CLL Treated With Bruton's-Tyrosine Kinase Inhibitor (BTK-I)

NCT03685708
View directory record Official record
Conditions
Hepatitis, Safety and Tolerability
Interventions
HEPLISAV-B
Biological
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
18 Years to 99 Years
Enrollment
78 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 7, 2022 · Synced Sep 24, 2026, 1:24 PM EDT
Completed Phase 2 Interventional Results available

A Study To Assess the Immune Response Following Administration Of Influenza and Pneumococcal Vaccines To Subjects With Rheumatoid Arthritis Receiving CP-690,550 Or Placebo

NCT01359150
View directory record Official record
Conditions
Rheumatoid Arthritis
Interventions
CP-690,550, placebo
Drug
Lead sponsor
Pfizer
Industry
Eligibility
18 Years and older
Enrollment
223 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
51
States / cities
Gilbert, Arizona • Paradise Valley, Arizona • Jonesboro, Arkansas + 45 more
Source: ClinicalTrials.gov public record
Updated Mar 28, 2013 · Synced Sep 24, 2026, 1:24 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety and Immune Response to Preventive HIV Immunization With Adenovirus Serotype 5 or 35 Vector

NCT00801697
View directory record Official record
Conditions
HIV Infections
Interventions
DNA Vaccine, DNA Vaccine placebo, rAd35, rAd35 placebo, rAd5, rAd5 placebo
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
192 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2009 – 2015
U.S. locations
10
States / cities
Birmingham, Alabama • San Francisco, California • Decatur, Georgia + 5 more
Source: ClinicalTrials.gov public record
Updated Oct 13, 2021 · Synced Sep 24, 2026, 1:24 PM EDT
Completed Phase 1 Interventional Results available

Cancer Vaccine Targeting Brachyury Protein in Tumors

NCT01519817
View directory record Official record
Conditions
Neoplasms, Malignant Solid Tumors, Colon Neoplasms, Adenocarcinoma
Interventions
GI-6301 (Yeast Brachyury Vaccine)
Biological
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
18 Years to 100 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2016
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 28, 2018 · Synced Sep 24, 2026, 1:24 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Pneumonia Vaccine in Aging HIV Positive Individuals

NCT02558751
View directory record Official record
Conditions
Pneumococcal Infection
Interventions
23-valent pneumococcal polysaccharide vaccine, 13-valent pneumococcal conjugate vaccine
Biological
Lead sponsor
University of Toledo Health Science Campus
Other
Eligibility
50 Years to 65 Years
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Toledo, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 23, 2015 · Synced Sep 24, 2026, 1:24 PM EDT
Withdrawn Phase 2 Interventional

Immune Response and Safety of HS110 Vaccine in Combination With Erlotinib in Patients With Non-Small Cell Lung Cancer

NCT01504542
View directory record Official record
Conditions
Non-small Cell Lung Cancer
Interventions
HS110 vaccine, Placebo
Biological
Lead sponsor
Heat Biologics
Industry
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Nov 20, 2013 · Synced Sep 24, 2026, 1:24 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

H5N8 Mix and Match With or Without AS03 or MF59 in Healthy Adults: Immunology

NCT03014310
View directory record Official record
Conditions
Avian Influenza
Interventions
AS03, MF59, Monovalent Influenza A/H5N8 vaccine
Drug · Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
19 Years to 64 Years
Enrollment
388 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2018
U.S. locations
7
States / cities
Atlanta, Georgia • Baltimore, Maryland • St Louis, Missouri + 4 more
Source: ClinicalTrials.gov public record
Updated Sep 22, 2024 · Synced Sep 24, 2026, 1:24 PM EDT
Not yet recruiting Phase 4 Interventional

RSV Vaccine Response in Stem Cell and CAR-T Therapy Recipients

NCT07296120
View directory record Official record
Conditions
CAR-T Cell Therapy, RSV Immunization, Bone Marrow Transplant - Autologous or Allogeneic
Interventions
Respiratory Syncytial Virus Prefusion F Vaccine (RSVpreF)
Biological
Lead sponsor
The Cooper Health System
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Camden, New Jersey
Source: ClinicalTrials.gov public record
Updated Dec 21, 2025 · Synced Sep 24, 2026, 1:24 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

COVID-19 Vaccine Responses in PIDD Subjects

NCT05321407
View directory record Official record
Conditions
X-linked Agammaglobulinemia, XLA, Primary Immune Deficiency, CVID, Common Variable Immunodeficiency, Primary Antibody Deficiencies, Secondary Hypogammaglobulinemia
Interventions
Not listed
Lead sponsor
Duke University
Other
Eligibility
6 Months and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2026
U.S. locations
3
States / cities
St. Petersburg, Florida • Chapel Hill, North Carolina • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Jun 2, 2025 · Synced Sep 24, 2026, 1:24 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluating the Safety of and Immune Response to the VSV-Indiana HIV Vaccine in Healthy, HIV-Uninfected Adults

NCT01438606
View directory record Official record
Conditions
HIV Infections
Interventions
VSV-Indiana HIV gag vaccine, Placebo injection (normal saline)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2011
U.S. locations
4
States / cities
San Francisco, California • Decatur, Georgia • Philadelphia, Pennsylvania + 1 more
Source: ClinicalTrials.gov public record
Updated Oct 14, 2021 · Synced Sep 24, 2026, 1:24 PM EDT
Recruiting Phase 2 Interventional

Immunologic Response to Pneumococcal Polysaccharide Vaccine in Splenic Injury Patients

NCT02232191
View directory record Official record
Conditions
Asplenia
Interventions
Pneumovax-23
Biological
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 65 Years
Enrollment
75 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2027
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Aug 17, 2026 · Synced Sep 24, 2026, 1:24 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers

Trial to Investigate Immune Responses Elicited by a Liquid Formulation of Influenza Virus Vaccine (CAIV-T) in Healthy Children

NCT00192322
View directory record Official record
Conditions
Influenza
Interventions
CAIV-T 10^7, CAIVT 10^5, Placebo, TIV
Biological
Lead sponsor
MedImmune LLC
Industry
Eligibility
6 Months to 36 Months
Enrollment
173 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001
U.S. locations
2
States / cities
New Port Richey, Florida • Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 16, 2012 · Synced Sep 24, 2026, 1:24 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Prospective Trial of Vaccine Responses Against Pneumococcus and Influenza in Adult Cancer Patients 65 Years of Age and Older

NCT00741039
View directory record Official record
Conditions
Breast Cancer, Lung Cancer, Prostate Cancer
Interventions
inactivated influenza vaccine and the 23- valent pneumococcal vaccine, inactivated influenza vaccine and the PPV23 vaccine (Pneumovax)
Biological
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
65 Years and older
Enrollment
126 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2012
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Nov 19, 2015 · Synced Sep 24, 2026, 1:24 PM EDT
Completed Phase 2 Interventional Results available

Vaccine Therapy in Treating HLA-A2 Positive Patients With Melanoma

NCT00003895
View directory record Official record
Conditions
Recurrent Melanoma, Stage IA Melanoma, Stage IB Melanoma, Stage IIA Melanoma, Stage IIB Melanoma, Stage IIC Melanoma, Stage IIIA Melanoma, Stage IIIB Melanoma, Stage IIIC Melanoma
Interventions
HPV 16 E7:12-20, gp100:209-217(210M), laboratory biomarker analysis
Biological · Other
Lead sponsor
National Cancer Institute (NCI)
NIH
Eligibility
17 Years and older
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2013
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Feb 19, 2017 · Synced Sep 24, 2026, 1:24 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of a Fermented Soy Product on Cognition, Immune Status and Vaccine

NCT04866576
View directory record Official record
Conditions
Cognitive Change, Inflammation, Immune Response
Interventions
Q CAN PLUS, Placebo
Dietary Supplement
Lead sponsor
Loma Linda University
Other
Eligibility
65 Years to 80 Years
Enrollment
62 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Loma Linda, California
Source: ClinicalTrials.gov public record
Updated Dec 8, 2025 · Synced Sep 24, 2026, 1:24 PM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Study to Learn About Flu and COVID-19 Vaccine Responses in Healthy People

NCT06683352
View directory record Official record
Conditions
Influenza,Human, COVID-19
Interventions
Investigational Influenza Vaccine, COVID-19 Vaccine, Investigational Influenza/COVID-19 Vaccine, Licensed Influenza Vaccine 1, Licensed Influenza Vaccine 2, Placebo
Biological · Combination Product · Other
Lead sponsor
BioNTech SE
Industry
Eligibility
18 Years and older
Enrollment
1,353 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2025
U.S. locations
22
States / cities
Lake Forest, California • San Diego, California • Walnut Creek, California + 17 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2026 · Synced Sep 24, 2026, 1:24 PM EDT