Janssen Vaccines & Prevention B.V.

Closed portfolio with an early-phase archive tilt

According to ClinicalTrials.gov-derived indexes, Janssen Vaccines & Prevention B.V. sits in the top decile of US sponsors by registered trial count (#484 of 15,742 sponsors by registered trial count).

34 total trials none currently recruiting 30 completed early-phase tilt top decile by trial count

Janssen Vaccines & Prevention B.V.: 34 sponsored US clinical trials, none currently recruiting.

Janssen Vaccines & Prevention B.V. sponsors 34 registered US clinical trials on ClinicalTrials.gov, none currently recruiting, and 30 completed. 13 of these trials are in Phase 3-4 (later-stage) and 21 in Phase 1-2 (earlier-stage). The most-studied condition in this pipeline is Healthy, with 3 trials.

Top-decile sponsor footprint

Janssen Vaccines & Prevention B.V. ranks in the top decile of sponsors by registered trial count (#484 of 15,742 sponsors by registered trial count). Volume at this scale usually reflects a long institutional pipeline, read phase tilt and therapeutic areas below before treating it as current-year activity.

Trial completion reliability score

D 60/100

30 of 34 decided trials (Completed vs. Terminated on ClinicalTrials.gov) reached their planned completion (88.2%), vs. national p10 68.4% / p90 100% among 1,234 sponsors with at least 10 decided trials. Still-open trials (Recruiting, Active-not-recruiting, Not-yet-recruiting) are excluded since they have not reached an outcome yet.

Indexed trials (enrollment closed)

34 total, page 1 of 1

COMPLETED Phase 1

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

NCT05901636

TERMINATED Phase 1

A Study of Various Respiratory Syncytial Virus (RSV) Pre-Fusion (preF)-Based Vaccine Formulations in Adults Aged 60 Years and Older

NCT05327816

COMPLETED Phase 3

A Study of Ad26.COV2.S and Influenza Vaccines in Healthy Adults

NCT05091307

COMPLETED Phase 3

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

NCT05101486

COMPLETED Phase 3

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

NCT05083585

COMPLETED Phase 3

A Study of an Ad26.RSV.preF-based Vaccine and High-dose Seasonal Influenza Vaccine, With and Without Coadministration, in Adults Aged 65 Years and Older

NCT05071313

COMPLETED Phase 3

A Study of an Ad26.RSV. preF-based Vaccine in Adults Aged 18 to 59 Years, Including Adults at High Risk for Severe RSV Infection

NCT05070546

COMPLETED Phase 2

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

NCT04765384

COMPLETED Phase 2

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

COMPLETED Phase 3

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

COMPLETED Phase 3

A Study to Evaluate Dose Levels of Ad26.COV2.S Administered as a Two-dose Schedule in Healthy Adults

NCT04908722

COMPLETED Phase 3

A Study of Ad26.COV2.S for the Prevention of SARS-CoV-2-mediated COVID-19 in Adults

NCT04614948

COMPLETED Phase 3

A Study of Ad26.COV2.S for the Prevention of SARS-CoV-2-Mediated COVID-19 in Adult Participants

NCT04505722

COMPLETED Phase 2

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

NCT04453202

COMPLETED Phase 1

A Study of Ad26.COV2.S in Adults (COVID-19)

NCT04436276

COMPLETED Phase 3

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

NCT04228783

COMPLETED Phase 3

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

TERMINATED Phase 2

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

TERMINATED Phase 1

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

COMPLETED Phase 1

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

COMPLETED Phase 1

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

COMPLETED Phase 2

A Study to Evaluate the Safety and Immunogenicity of Seasonal Influenza Vaccine and an Adenovirus Serotype 26- Based Vaccine Encoding for the Respiratory Syncytial Virus Pre-fusion F Protein (Ad26.RSV.preF), With and Without Co-administration, in Adults Aged 60 Years and Older in Stable Health

NCT03339713

COMPLETED Phase 1

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

COMPLETED Phase 1

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

NCT03356561

COMPLETED Phase 1

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

COMPLETED Phase 1

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

COMPLETED Phase 1

A Study to Evaluate Safety, Tolerability, and Immunogenicity of Heterologous Prime-boost Regimens Using the Multivalent Filovirus Vaccines Ad26.Filo and MVA-BN-Filo Administered in Different Sequences and Schedules in Healthy Adults

NCT02860650

COMPLETED Phase 1

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

TERMINATED Phase 3

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

NCT02661464

COMPLETED Phase 1

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

COMPLETED Phase 2

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

NCT02598388

COMPLETED Phase 3

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

NCT02543567

COMPLETED Phase 1

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

NCT02325050

COMPLETED Phase 1

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

How the Janssen Vaccines & Prevention B.V. early-phase archive is shaped

34 indexed studies, none listed as recruiting (0% open); 30 completed (88%).

Phase mix: 13 late (III/IV) vs 21 early (I/II) (early-phase heavy).

Top condition: Healthy (3 trials), 6 others listed.

How to read a closed sponsor archive

When recruiting_count is zero, the indexed set is completed or otherwise not open. Phase tilt still describes where archived studies sat on the investigational pathway. Re-check ClinicalTrials.gov before acting.

Janssen Vaccines & Prevention B.V.: archived-pipeline peers nationwide

Peers matched on 34 indexed studies with no current recruiting: volume and archive shape, not condition overlap.

Janssen Vaccines & Prevention B.V. sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot). 2×2 strategic matrix plotting 9 entities by Total trials (X) and Recruiting share (Y), with a crosshair dividing the plot into four quadrants. Higher volume & more openFocused & more openHigher volume, mostly closedSmaller & mostly closed 010203040 0%10%20%30%40%50% Total trials Recruiting share Janssen Vaccines & Prevention B.V.Allegheny Singer Research Institute (also known as Allegheny Health Network Research Institute)American RegentAmicus TherapeuticsCochlear10xBio22nd Century Group23andMe3-C Institute for Social Development
Janssen Vaccines & Prevention B.V. sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together. Source: ClinicalTrials.gov (2026-08-08 snapshot).

Janssen Vaccines & Prevention B.V. sits at or above the median trial volume and at or above the median recruiting share among these 9 nationwide peers -- the two do not always move together.

Sponsors near 34 archived trials

Sponsors with similar archive density (± trial count)

What to do with this Janssen Vaccines & Prevention B.V. page

34 registered trials is a research-attention snapshot, not an endorsement of Janssen Vaccines & Prevention B.V. or any single study.

  • None of Janssen Vaccines & Prevention B.V.'s trials are currently recruiting in this registry; that can change as new trials post, or check the broader research index. Browse research indexes
  • Healthy is the condition Janssen Vaccines & Prevention B.V. studies most, compare against other sponsors active in the same condition before evaluating a specific study. See Healthy trials
  • Bring the specific trial ID (NCT number) to your own doctor before enrolling, this page is a directory, not medical guidance. Read the trial-finding guide

Trial and recruiting counts reflect ClinicalTrials.gov registry status as of the data vintage above; individual trial eligibility and enrollment status can change.

Janssen Vaccines & Prevention B.V. pipeline card: 34 registered trials from official public datasets.Report a data error.