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Showing 1–24 of 643 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Vaccine Response Clear all
Active, not recruiting Phase 1 Interventional

Adjuvant PVX-410 Vaccine and Durvalumab in Stage II/III Triple Negative Breast Cancer

NCT02826434
View directory record Official record
Conditions
Breast Cancer
Interventions
PVX-410, Durvalumab, Hiltonol
Biological · Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older · Female only
Enrollment
22 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2027
U.S. locations
5
States / cities
Tampa, Florida • Boston, Massachusetts • New York, New York
Source: ClinicalTrials.gov public record
Updated Sep 30, 2025 · Synced Jul 21, 2026, 5:02 AM EDT
Recruiting Phase 2 Interventional Accepts healthy volunteers

Evaluating Gardasil HPV Vaccine Humoral and Cellular Immune Responses in People With and Without HIV

NCT06624839
View directory record Official record
Conditions
Human Papilloma Virus, Anal Dysplasia, HIV
Interventions
Human papillomavirus (HPV) vaccine, 9-valent
Biological
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 70 Years · Male only
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2028
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 3, 2025 · Synced Jul 21, 2026, 5:02 AM EDT
Active, not recruiting Phase 1 Interventional Accepts healthy volunteers

A Study on the Safety and Immune Response to an mRNA-based RSV Investigational Vaccine in Healthy Adults Aged 18-45 Years

NCT06573281
View directory record Official record
Conditions
Respiratory Syncytial Virus Infections
Interventions
Investigational RSV vaccine 1, Investigational RSV vaccine 2, Investigational RSV vaccine 3, Investigational RSV vaccine 4, Investigational RSV vaccine 5, Investigational RSV vaccine 6, Placebo
Biological · Drug
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years to 45 Years
Enrollment
213 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
5
States / cities
Rolling Hills Estates, California • Atlanta, Georgia • Lenexa, Kansas + 2 more
Source: ClinicalTrials.gov public record
Updated Sep 7, 2025 · Synced Jul 21, 2026, 5:02 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study Assessing the Safety, Immunogenicity and Dose Response of VLA15, A New Vaccine Candidate Against Lyme Borreliosis

NCT03010228
View directory record Official record
Conditions
Lyme Borreliosis, Nervous System
Interventions
VLA15 with Alum, VLA15 without Alum
Biological
Lead sponsor
Pfizer
Industry
Eligibility
18 Years to 39 Years
Enrollment
179 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
4
States / cities
La Mesa, California • Lincoln, Nebraska
Source: ClinicalTrials.gov public record
Updated Apr 4, 2023 · Synced Jul 21, 2026, 5:02 AM EDT
Completed Phase 1 Interventional

Study of Safety and Immunogenicity of HIV Vaccines in Healthy Volunteers

NCT01989533
View directory record Official record
Conditions
Vaccine Response
Interventions
Ad4-mgag, Ad4-EnvC150, gp 120 Protein Boost
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 49 Years
Enrollment
62 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 16, 2019 · Synced Jul 21, 2026, 5:02 AM EDT
Completed Phase 1 Interventional

Autologous Vaccine for Follicular Lymphoma

NCT01022255
View directory record Official record
Conditions
Lymphoma, Follicular
Interventions
Autologous FL vaccine
Biological
Lead sponsor
Icon Genetics GmbH
Industry
Eligibility
18 Years and older
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2013
U.S. locations
3
States / cities
Burbank, California • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Jan 29, 2014 · Synced Jul 21, 2026, 5:02 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Heplisav-B Revaccination for Hepatitis B Vaccine Nonresponders

NCT05791851
View directory record Official record
Conditions
HIV Infections, Hepatitis B, Vaccine Response Impaired
Interventions
Not listed
Lead sponsor
University of Maryland, Baltimore
Other
Eligibility
18 Years to 109 Years
Enrollment
31 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2022
U.S. locations
2
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 29, 2023 · Synced Jul 21, 2026, 5:02 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study on the Immune Response and Safety of an RSV Vaccine When Given to Adults 18 Years of Age and Above Who Received Lung or Kidney Transplant and Are at an Increased Risk of Respiratory Syncytial Virus Lower Respiratory Tract Disease and Compared to Healthy Adults 50 Years of Age and Above

NCT05921903
View directory record Official record
Conditions
Respiratory Syncytial Virus Infections
Interventions
RSVPreF3 OA Investigational Vaccine
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
18 Years and older
Enrollment
386 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
10
States / cities
Phoenix, Arizona • Chicago, Illinois • Lexington, Kentucky + 6 more
Source: ClinicalTrials.gov public record
Updated Jun 10, 2026 · Synced Jul 21, 2026, 5:02 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of and Immune Response to a New HIV Vaccine: HIV CTL MEP

NCT00076037
View directory record Official record
Conditions
HIV Infections
Interventions
HIV CTL MEP administered with RC529-SE adjuvant, GM-CSF
Biological · Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 40 Years
Enrollment
96 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2006
U.S. locations
7
States / cities
Birmingham, Alabama • San Francisco, California • Baltimore, Maryland + 4 more
Source: ClinicalTrials.gov public record
Updated Oct 13, 2021 · Synced Jul 21, 2026, 5:02 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Impact of Metformin on Immunity

NCT03713801
View directory record Official record
Conditions
Aging, Vaccine Response Impaired
Interventions
Metformin, Placebo
Drug
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
63 Years to 90 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2024
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Aug 19, 2024 · Synced Jul 21, 2026, 5:02 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Humoral and T-Cell Responses to COVID-19 Vaccination in Multiple Sclerosis Patients Treated With Ocrelizumab Treated With Ocrelizumab or Natalizumab

NCT04837651
View directory record Official record
Conditions
Multiple Sclerosis, Demyelinating Autoimmune Diseases, CNS, Autoimmune Diseases of the Nervous System, Nervous System Diseases, Demyelinating Diseases, Autoimmune Diseases, Immune System Diseases, Pathologic Processes
Interventions
Elecsys semi-quantitative Anti-SARS-CoV-2 antibody test, T-Detect COVID T-cell blood test
Device
Lead sponsor
Dragonfly Research, LLC
Other
Eligibility
18 Years to 55 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021
U.S. locations
1
States / cities
Wellesley, Massachusetts
Source: ClinicalTrials.gov public record
Updated Aug 1, 2021 · Synced Jul 21, 2026, 5:02 AM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

WHNRC (Western Human Nutrition Research Center) Fiber Intervention Study

NCT04543877
View directory record Official record
Conditions
Inflammation, Vaccine, Intestinal Permeability, Typhoid Fever
Interventions
Inulin, Maltodextrin, Ty21a Typhoid Fever Vaccine
Dietary Supplement · Biological
Lead sponsor
USDA, Western Human Nutrition Research Center
Federal
Eligibility
18 Years to 59 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2025
U.S. locations
1
States / cities
Davis, California
Source: ClinicalTrials.gov public record
Updated Dec 16, 2025 · Synced Jul 21, 2026, 5:02 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

Study Comparing the Immune Response and Safety of Fluarix and Fluzone Influenza Vaccines in Children

NCT00383123
View directory record Official record
Conditions
Influenza
Interventions
Fluarix™, Fluzone
Biological
Lead sponsor
GlaxoSmithKline
Industry
Eligibility
6 Months to 17 Years
Enrollment
3,327 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
40
States / cities
Antioch, California • Fairfield, California • Fresno, California + 35 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2018 · Synced Jul 21, 2026, 5:02 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Immune Response to Vaccination in Patients Receiving Single Drug Immunosuppression

NCT01733056
View directory record Official record
Conditions
Immunosuppression
Interventions
Flu Vaccine
Biological
Lead sponsor
Emory University
Other
Eligibility
18 Years to 89 Years
Enrollment
43 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2013
U.S. locations
2
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Jul 20, 2014 · Synced Jul 21, 2026, 5:02 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Study of Reduced Dose of Menomune® in Children Who Previously Received Meningococcal Diphtheria Toxoid Conjugate Vaccine

NCT00772070
View directory record Official record
Conditions
Meningitis, Meningococcemia, Neisseria Meningitidis
Interventions
A/C/Y/W-135, Meningococcal Polysaccharide Vaccine (Menomune®)
Biological
Lead sponsor
Sanofi Pasteur, a Sanofi Company
Industry
Eligibility
3 Years to 5 Years
Enrollment
173 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2003 – 2004
U.S. locations
8
States / cities
Jonesboro, Arkansas • Little Rock, Arkansas • Woburn, Massachusetts + 5 more
Source: ClinicalTrials.gov public record
Updated Feb 13, 2014 · Synced Jul 21, 2026, 5:02 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety of and Immune Response to a Dengue Virus Vaccine (rDEN1delta30) in Healthy Adults

NCT00089908
View directory record Official record
Conditions
Dengue Fever
Interventions
rDEN1delta30, 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
2004 – 2005
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 17, 2008 · Synced Jul 21, 2026, 5:02 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Evaluating the Safety and Immune Response to a Dengue Virus Vaccine in Healthy Adults

NCT01931176
View directory record Official record
Conditions
Dengue
Interventions
rDEN2Δ30-7169 vaccine, Placebo
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 14, 2015 · Synced Jul 21, 2026, 5:02 AM EDT
Active, not recruiting Phase 2 Interventional Accepts healthy volunteers

Immunology of Ebola Vaccine

NCT06100913
View directory record Official record
Conditions
Ebola Virus Disease
Interventions
Recombinant Vesicular Stomatitis Vaccine for Ebola (rVSV∆G-ZEBOV-GP), Deuterium Labeled Water
Biological · Other
Lead sponsor
Emory University
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
2
States / cities
Decatur, Georgia • St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jan 21, 2026 · Synced Jul 21, 2026, 5:02 AM EDT
Not listed Phase 4 Interventional Accepts healthy volunteers

Influenza Vaccine as a Novel Experimental Model of the Behavioral Immune Response in Depression

NCT03756246
View directory record Official record
Conditions
Depression, Healthy
Interventions
Influenza Vaccine
Biological
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 60 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2021
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 26, 2019 · Synced Jul 21, 2026, 5:02 AM EDT
Completed Phase 2 Interventional

Immune Response to a Therapeutic HIV Vaccine Followed by Treatment Interruption in Patients With Acute or Recent HIV Infection

NCT00183261
View directory record Official record
Conditions
HIV Infections
Interventions
MRKAd5 HIV-1 gag/pol/nef, MRKAd5 HIV-1 gag/pol/nef placebo
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 55 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
13
States / cities
San Diego, California • San Francisco, California • Torrance, California + 7 more
Source: ClinicalTrials.gov public record
Updated Oct 31, 2021 · Synced Jul 21, 2026, 5:02 AM EDT
Completed No phase listed Observational Accepts healthy volunteers

Influenza Vaccine in Lung Transplant Patients

NCT00205270
View directory record Official record
Conditions
Influenza
Interventions
Influenza vaccine
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
126 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2009
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 22, 2020 · Synced Jul 21, 2026, 5:02 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Comparing Immune Response of 2 vs 3 HPV Doses (27-45 Years Old)

NCT05672927
View directory record Official record
Conditions
Immunization, HPV Infection, Human Papillomavirus
Interventions
9-valent HPV vaccine, 2 doses alternate timing, 9-valent HPV vaccine, 3 doses standard timing
Biological
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
27 Years to 45 Years · Female only
Enrollment
618 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Oct 5, 2025 · Synced Jul 21, 2026, 5:02 AM EDT
Completed No phase listed Observational

A Multicenter Study to Assess Response to COVID-19 Vaccine in Multiple Sclerosis Participants Treated With Ofatumumab

NCT04847596
View directory record Official record
Conditions
Relapsing Multiple Sclerosis
Interventions
Ofatumumab, Covid-19 vaccine
Other
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
18 Years to 55 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
4
States / cities
Phoenix, Arizona • Owosso, Michigan • St Louis, Missouri + 1 more
Source: ClinicalTrials.gov public record
Updated Jan 24, 2023 · Synced Jul 21, 2026, 5:02 AM EDT
Active, not recruiting Phase 4 Interventional Accepts healthy volunteers

Longitudinal Tracking of Bone Marrow Plasma Cell Responses to Licensed Human Vaccines

NCT07493460
View directory record Official record
Conditions
Immunology, Healthy Adults
Interventions
trivalent inactivated influenza vaccine (TIV), nonavalent HPV vaccine (HPV), hepatitis A (HAV) vaccines, tetanus, diphtheria and acellular pertussis vaccine (Tdap)
Biological
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
St Louis, Missouri
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Jul 21, 2026, 5:02 AM EDT