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ClinicalTrials.gov public records Last synced Oct 7, 2026, 1:33 AM EDT

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Showing 1–24 of 34 matching trials from the live ClinicalTrials.gov search.
Filters: Sponsor: Janssen Vaccines & Prevention B.V. Clear all
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

A Study of an Ad26.RSV.preF-based Regimen in the Prevention of Reverse Transcriptase Polymerase Chain Reaction (RT-PCR)-Confirmed Respiratory Syncytial Virus (RSV)-Mediated Lower Respiratory Tract Disease in Adults Aged 65 Years and Older

NCT03982199
View directory record Official record
Conditions
Respiratory Syncytial Viruses, Respiratory Tract Diseases
Interventions
RSV Vaccine, Placebo
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
65 Years and older
Enrollment
5,815 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
40
States / cities
Huntsville, Alabama • Chandler, Arizona • Phoenix, Arizona + 35 more
Source: ClinicalTrials.gov public record
Updated May 25, 2025 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Safety and Immunogenicity Study of Heterologous and Homologous Prime-Boost Ebola Vaccine Regimens in Healthy Participants

NCT02325050
View directory record Official record
Conditions
Healthy
Interventions
MVA-BN-Filo, Ad26. ZEBOV, Placebo
Biological · Other
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years to 50 Years
Enrollment
164 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 14, 2017 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study of an Adenovirus Serotype 26 Pre-fusion Conformation-stabilized F Protein (Ad26. RSV. preF) Based Respiratory Syncytial Virus (RSV) Vaccine in the Prevention of Lower Respiratory Tract Disease in Adults Aged 60 Years and Older

NCT04908683
View directory record Official record
Conditions
Respiratory Syncytial Viruses, Lower Respiratory Tract Disease
Interventions
Adenovirus serotype 26 (Ad26)-based respiratory syncytial virus (RSV). preF, Placebo
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
60 Years and older
Enrollment
25,236 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
156
States / cities
Birmingham, Alabama • Huntsville, Alabama • Mobile, Alabama + 126 more
Source: ClinicalTrials.gov public record
Updated Nov 13, 2025 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Safety, Tolerability and Immunogenicity Study of 2-dose Heterologous Regimens for Ebola Vaccines Ad26.ZEBOV/MVA-BN-Filo

NCT02598388
View directory record Official record
Conditions
Hemorrhagic Fever, Ebola
Interventions
Ad26.ZEBOV, MVA-BN-Filo, Placebo
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years to 70 Years
Enrollment
578 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2018
U.S. locations
1
States / cities
Silver Spring, Maryland
Source: ClinicalTrials.gov public record
Updated Feb 4, 2025 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Clinical Study to Evaluate an Experimental Universal Influenza Vaccine, INFLUENZA G1 mHA, in Healthy Adults

NCT05901636
View directory record Official record
Conditions
Influenza Prevention
Interventions
INFLUENZA G1 mHA, Placebo, Al(OH)3
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years to 45 Years
Enrollment
170 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
4
States / cities
Miami Lakes, Florida • Lenexa, Kansas • Metairie, Louisiana + 1 more
Source: ClinicalTrials.gov public record
Updated Sep 8, 2025 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Safety, Tolerability and Immunogenicity Study of Different Vaccine Regimens of Trivalent Ad26.Mos.HIV or Tetravalent Ad26.Mos4.HIV Along With Clade C Glycoprotein (gp)140 in Healthy Human Immunodeficiency Virus (HIV)-Uninfected Adults

NCT02788045
View directory record Official record
Conditions
Healthy
Interventions
Ad26.Mos.HIV, Ad26.Mos4.HIV, Clade C gp140, Placebo
Biological · Drug
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years to 50 Years
Enrollment
201 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2022
U.S. locations
9
States / cities
Birmingham, Alabama • San Francisco, California • Decatur, Georgia + 6 more
Source: ClinicalTrials.gov public record
Updated May 25, 2025 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Safety, Tolerability and Immunogenicity of an Investigational RSV Vaccine Candidate (Ad26.RSV.preF) in Adults 18 to 50 Years of Age, and RSV-seropositive Toddlers 12 to 24 Months of Age

NCT03303625
View directory record Official record
Conditions
Respiratory Syncytial Viruses, Respiratory Tract Infections
Interventions
Ad26.RSV.preF (1*10^11 vp), Ad26.RSV.preF (5*10^10 vp), Placebo
Biological · Drug
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
12 Months to 50 Years
Enrollment
48 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Newton, Kansas
Source: ClinicalTrials.gov public record
Updated May 25, 2025 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Safety, Tolerability and Immunogenicity of Two Vaccinations of Ad26.RSV.preF One Year Apart in Adults Aged 60 Years and Older in Stable Health

NCT02926430
View directory record Official record
Conditions
Healthy
Interventions
Ad26.RSV.preF 5*10^10 vp, Ad26.RSV.preF 1*10^11 vp, Placebo
Biological · Drug
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
60 Years and older
Enrollment
73 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Feb 19, 2019 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Safety, Tolerability and Immunogenicity Study of 2 Different Regimens of Tetravalent Ad26.Mos4.HIV Prime Followed by Boost With Tetravalent Ad26.Mos4.HIV Along With Either Clade C gp140 Plus Adjuvant OR With a Combination of Mosaic and Clade C gp140 Plus Adjuvant in Healthy HIV Uninfected Adults

NCT02935686
View directory record Official record
Conditions
Healthy
Interventions
Ad26.Mos4.HIV, Clade C gp140 plus adjuvant, Clade C gp140/Mosaic gp140 plus adjuvant, Placebo, gp140 HIV Bivalent Vaccine
Biological · Other
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years and older
Enrollment
155 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2023
U.S. locations
11
States / cities
Birmingham, Alabama • San Francisco, California • Decatur, Georgia + 5 more
Source: ClinicalTrials.gov public record
Updated May 25, 2025 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

Safety, Tolerability, and Immunogenicity Study of Homologous Ad26 Mosaic Vector Vaccine Regimens or Heterologous Ad26 Mosaic and MVA Mosaic Vector Vaccine Regimens With Glycoprotein 140 (gp140) for Human Immunodeficiency Virus (HIV) Prevention

NCT02315703
View directory record Official record
Conditions
Healthy
Interventions
Ad26.Mos.HIV, MVA-Mosaic, gp140 DP Low-dose, gp140 DP High-dose, Placebo
Biological · Drug
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years to 50 Years
Enrollment
393 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014 – 2022
U.S. locations
5
States / cities
Aurora, Colorado • Miami, Florida • Rockville, Maryland + 2 more
Source: ClinicalTrials.gov public record
Updated Feb 4, 2025 · Synced Oct 7, 2026, 1:33 AM EDT
Terminated Phase 1Phase 2 Interventional Results available

Safety, Reactogenicity and Immunogenicity of Adenovirus Serotype 26 (Ad26)- and Modified Vaccinia Ankara (MVA)-Vectored Vaccine Components in Otherwise Healthy Women With HPV16 or HPV18 Infection of the Cervix

NCT03610581
View directory record Official record
Conditions
Human Papillomavirus Infections
Interventions
Ad26.HPV16, Ad26.HPV18, MVA.HPV16/18, Placebo
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years to 60 Years · Female only
Enrollment
9 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2020
U.S. locations
11
States / cities
Doral, Florida • Fort Myers, Florida • Miami, Florida + 8 more
Source: ClinicalTrials.gov public record
Updated Feb 4, 2025 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

A Study to Evaluate A Range of Dose Levels of Ad26.ZEBOV and MVA-BN-Filo in Healthy Adult Participants

NCT02543567
View directory record Official record
Conditions
Healthy
Interventions
Ad26.ZEBOV 5*10^10 viral particles (vp), Ad26.ZEBOV 2*10^10 (vp), Ad26.ZEBOV 0.8*10^10 (vp), MVA-BN-Filo 1*10^8 Infectious Unit [Inf. U.], MVA-BN-Filo 5*10^7 Inf. U., Placebo
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years to 50 Years
Enrollment
525 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
6
States / cities
Huntsville, Alabama • San Diego, California • Melbourne, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated May 25, 2025 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study of Heterologous Vaccine Regimen of Adenovirus Serotype 26 Mosaic4 Human Immunodeficiency Virus(Ad26.Mos4.HIV), Adjuvanted Clade C gp140 and Mosaic gp140 to Prevent HIV-1 Infection Among Cis-gender Men and Transgender Individuals Who Have Sex With Cis-gender Men and/or Transgender Individuals

NCT03964415
View directory record Official record
Conditions
Healthy
Interventions
Ad26.Mos4.HIV, Clade C and Mosaic gp140 HIV bivalent vaccine, Placebo
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years to 60 Years
Enrollment
3,900 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2023
U.S. locations
20
States / cities
Birmingham, Alabama • San Francisco, California • Washington D.C., District of Columbia + 14 more
Source: ClinicalTrials.gov public record
Updated Jul 31, 2024 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study Evaluating the Immunogenicity of Different Clinical Trial Materials of Ad26.RSV.preF- Based Vaccine in Adults Aged 60 - 75 Years Old

NCT05083585
View directory record Official record
Conditions
Respiratory Syncytial Virus Prevention
Interventions
Ad26.RSV.preF-based vaccine
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
60 Years to 75 Years
Enrollment
250 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
9
States / cities
San Diego, California • Lakeland, Florida • Melbourne, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated May 25, 2025 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study of Ad26.COV2.S in Healthy Pregnant Participants (COVID-19)

NCT04765384
View directory record Official record
Conditions
COVID-19 Prevention
Interventions
Ad26.COV2.S
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years to 45 Years · Female only
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2023
U.S. locations
4
States / cities
Gulfport, Mississippi • Norfolk, Nebraska • Albuquerque, New Mexico + 1 more
Source: ClinicalTrials.gov public record
Updated May 25, 2025 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study of Ad26.COV2.S Administered as Booster Vaccination in Adults Who Have Previously Received Primary Vaccination With Ad26.COV2.S or BNT162b2

NCT04999111
View directory record Official record
Conditions
Coronavirus Disease
Interventions
Ad26.COV2.S
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years and older
Enrollment
1,541 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
21
States / cities
Phoenix, Arizona • Tucson, Arizona • Anaheim, California + 17 more
Source: ClinicalTrials.gov public record
Updated Feb 4, 2025 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 1 Interventional

A Study of 2 Different Regimens of Tetravalent Ad26.Mos4.HIV Prime Followed by Boost With Modified Vaccinia Ankara (MVA)-Mosaic OR Ad26.Mos4.HIV Plus a Combination of Mosaic and Clade C gp140 Protein in Human Immunodeficiency Virus (HIV) Type 1 Infected Adults on Suppressive Antiretroviral Treatment

NCT03307915
View directory record Official record
Conditions
Human Immunodeficiency Virus
Interventions
Ad26.Mos4.HIV, MVA-Mosaic, Clade C gp140 + Mosaic gp140, Placebo
Biological · Drug
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years to 60 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2021
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 4, 2025 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

A Study to Evaluate a Range of Dose Levels of an Adenovirus Serotype 26 (Ad26.RSV.preF)-Based Vaccine in Older Adults

NCT04453202
View directory record Official record
Conditions
Healthy
Interventions
RSV Vaccine, Placebo
Biological · Other
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
60 Years and older
Enrollment
459 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2021
U.S. locations
9
States / cities
San Diego, California • Coral Gables, Florida • El Dorado, Kansas + 6 more
Source: ClinicalTrials.gov public record
Updated May 25, 2025 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Safety, Tolerability and Immunogenicity Study of Different Vaccine Schedules With Ad26.Mos.HIV and Clade C Glycoprotein (gp)140 in Healthy Human Immunodeficiency Virus (HIV)-Uninfected Adults

NCT02685020
View directory record Official record
Conditions
Healthy
Interventions
Ad26.Mos.HIV, Clade C gp140, Placebo
Biological · Drug
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years to 50 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Feb 3, 2025 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 1Phase 2 Interventional Accepts healthy volunteers Results available

A Study to Evaluate the Safety and Immunogenicity for Regimen Selection of Ad26.RSV.preF and/or RSV preF Protein Combinations Followed by Expanded Safety Evaluation in Adults Aged 60 Years and Older

NCT03502707
View directory record Official record
Conditions
Healthy
Interventions
Placebo, RSV preF Protein 50 mcg, RSV preF Protein 150 mcg, Ad26.RSV.preF 1*10^11 vp, Mixture of Ad26.RSV.preF 5*10^10 vp Plus RSV preF Protein 50 mcg, Mixture of Ad26.RSV.preF 5*10^10 vp Plus RSV preF Protein 150 mcg, Mixture of Ad26.RSV.preF 1*10^11 vp Plus RSV preF Protein 50 mcg, Mixture of Ad26.RSV.preF 1*10^11 vp Plus RSV preF Protein 150 mcg, Selected Regimen
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
60 Years and older
Enrollment
669 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
6
States / cities
Huntsville, Alabama • San Diego, California • Melbourne, Florida + 3 more
Source: ClinicalTrials.gov public record
Updated May 25, 2025 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 3 Interventional Results available

A Study of an Ad26.RSV.PreF-based Regimen at the End of Shelf-life in Adults Aged 60 to 75 Years

NCT05101486
View directory record Official record
Conditions
Respiratory Syncytial Virus Prevention
Interventions
Ad26.RSV.PreF-based Vaccine
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
60 Years to 75 Years
Enrollment
755 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2022
U.S. locations
13
States / cities
Athens, Alabama • Vestavia Hills, Alabama • Phoenix, Arizona + 8 more
Source: ClinicalTrials.gov public record
Updated May 25, 2025 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 3 Interventional Accepts healthy volunteers Results available

A Study of 2-dose Vaccine Regimen Using 3 Consecutive Lots of Ad26.ZEBOV and MVA-BN-Filo in Adult Participants

NCT04228783
View directory record Official record
Conditions
Ebola
Interventions
Ad26.ZEBOV, MVA-BN-Filo, Placebo
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years to 50 Years
Enrollment
974 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2022
U.S. locations
7
States / cities
Mobile, Alabama • Tempe, Arizona • Lexington, Kentucky + 4 more
Source: ClinicalTrials.gov public record
Updated May 25, 2025 · Synced Oct 7, 2026, 1:33 AM EDT
Terminated Phase 3 Interventional Accepts healthy volunteers Results available

Long-term Safety Follow-up of Participants Exposed to the Candidate Ebola Vaccines Ad26.ZEBOV and/or MVA-BN-Filo

NCT02661464
View directory record Official record
Conditions
Hemorrhagic Fever, Ebola
Interventions
Ad26.ZEBOV, MVA-BN-Filo
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
0 Years to 71 Years
Enrollment
677 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2021
U.S. locations
1
States / cities
Rockville, Maryland
Source: ClinicalTrials.gov public record
Updated Jan 2, 2024 · Synced Oct 7, 2026, 1:33 AM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Study to Evaluate the Safety, Reactogenicity and Immunogenicity of Ad26.ZIKV.001 in Healthy Adult Volunteers

NCT03356561
View directory record Official record
Conditions
Healthy
Interventions
Ad26.ZIKV.001 5*10^10 vp, Ad26.ZIKV.001 1*10^11 vp, Placebo
Biological
Lead sponsor
Janssen Vaccines & Prevention B.V.
Industry
Eligibility
18 Years to 50 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2019
U.S. locations
2
States / cities
Lenexa, Kansas • Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 15, 2019 · Synced Oct 7, 2026, 1:33 AM EDT