Vaccine Effectiveness of a Bivalent RSV Prefusion F Protein-Based Vaccine for Preventing RSV Hospitalizations in Adults

NCT ID: NCT06684743

Last Updated: 2025-11-25

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE4

Total Enrollment

690000 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-11-18

Study Completion Date

2028-08-31

Brief Summary

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The purpose of this pragmatic randomized trial is to evaluate the vaccine effectiveness of bivalent RSV prefusion F vaccine (RSV vaccine) in adults. Participants will be randomized 1:1 to either RSV vaccine or no RSV vaccine.

Detailed Description

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The study is a pragmatic, registry-based, open-label, individually randomized trial. Administrative health registries will be used for data collection including baseline information, follow-up data, and safety monitoring. The study aims to randomize a total of 690,000 participants. Participants will be individually randomized 1:1 to receive either a bivalent RSV prefusion F vaccine (RSV vaccine) or no RSV vaccine. The trial is designed to assess the vaccine effectiveness of the RSV vaccine vs. no RSV vaccine on RSV-related and all-cause cardio-respiratory outcomes.

Conditions

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RSV

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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RSV prefusion F protein-based vaccine (RSV vaccine)

RSV vaccine single injection at day 0

Group Type EXPERIMENTAL

RSV prefusion F protein-based vaccine

Intervention Type BIOLOGICAL

For this arm, the RSV prefusion F protein-based vaccine Abrysvo® will be used

No RSV vaccine (control)

Control arm, no RSV vaccine

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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RSV prefusion F protein-based vaccine

For this arm, the RSV prefusion F protein-based vaccine Abrysvo® will be used

Intervention Type BIOLOGICAL

Other Intervention Names

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RSVpreF vaccine

Eligibility Criteria

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Inclusion Criteria

* Age 18 years and above
* Informed consent form has been signed and dated
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Pfizer

INDUSTRY

Sponsor Role collaborator

Tor Biering-Sørensen

OTHER

Sponsor Role lead

Responsible Party

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Tor Biering-Sørensen

Professor

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Tor Biering-Sørensen, MD, PhD, MSc, MPH

Role: STUDY_CHAIR

Center for Translational Cardiology and Pragmatic Randomized Trials, Department of Cardiology, Copenhagen University Hospital - Herlev and Gentofte

Locations

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Center for Translational Cardiology and Pragmatic Randomized Trials Department of Cardiology Copenhagen University Hospital - Herlev and Gentofte

Copenhagen, , Denmark

Site Status NOT_YET_RECRUITING

Danske Lægers Vaccinations Service

Søborg, , Denmark

Site Status RECRUITING

General Public Health Directorate of Galician Health Service

Santiago de Compostela, A Coruña, Spain

Site Status RECRUITING

Countries

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Denmark Spain

Central Contacts

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Mats H Lassen, MD

Role: CONTACT

+4529806779

Tor Biering-Sørensen, MD, PhD, MSc, MPH

Role: CONTACT

+4528933590

Facility Contacts

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Mats H Lassen, MD

Role: primary

+4529806779

Carsten S Larsen, MD, DMSc

Role: primary

+4540459708

Carmen Rodríguez-Tenreiro-Sánchez, PhD

Role: primary

655 299 502

References

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Lassen MCH, Johansen ND, Christensen SH, Aliabadi N, Skaarup KG, Modin D, Claggett BL, Larsen CS, Larsen L, Wiese L, Dalager-Pedersen M, Lindholm MG, Jensen AMR, Dons M, Bernholm KF, Davidovski FS, Duus LS, Ottosen CI, Nielsen AB, Borchsenius JH, Espersen C, Kose G, Fussing FH, Kober L, Solomon SD, Jensen JUS, Martel CJ, Gessner BD, Schwarz C, Gonzalez E, Skovdal M, Moulton LH, Zhang P, Begier E, Biering-Sorensen T. RSV Prefusion F Vaccine for Prevention of Hospitalization in Older Adults. N Engl J Med. 2025 Aug 30. doi: 10.1056/NEJMoa2509810. Online ahead of print.

Reference Type DERIVED
PMID: 40888695 (View on PubMed)

Lassen MCH, Johansen ND, Christensen SH, Aliabadi N, Skaarup KG, Modin D, Claggett BL, Larsen CS, Larsen L, Wiese L, Dalager-Pedersen M, Lindholm MG, Jensen AMR, Dons M, Bernholm KF, Davidovski FS, Duus LS, Ottosen CI, Nielsen AB, Borchsenius JH, Espersen C, Kose G, Fussing FH, Pareek M, Kober L, Solomon SD, Jensen JUS, Martel CJ, Gessner BD, Schwarz C, Gonzalez E, Skovdal M, Moulton LH, Zhang P, Begier E, Biering-Sorensen T. Bivalent RSV Prefusion F Protein-Based Vaccine for Preventing Cardiovascular Hospitalizations in Older Adults: A Prespecified Analysis of the DAN-RSV Trial. JAMA. 2025 Oct 28;334(16):1431-1441. doi: 10.1001/jama.2025.15405.

Reference Type DERIVED
PMID: 40884493 (View on PubMed)

Lassen MCH, Christensen SH, Johansen ND, Aliabadi N, Skaarup KG, Modin D, Claggett BL, Larsen CS, Larsen L, Wiese L, Dalager-Pedersen M, Lindholm MG, Kober L, Solomon SD, Staehr Jensen JU, Martel CJ, Schwarz C, Gonzalez E, Skovdal M, Moulton LH, Zhang P, Gessner BD, Begier E, Biering-Sorensen T. A pragmatic individually randomized trial to evaluate bivalent RSV prefusion F protein-based vaccine effectiveness for preventing RSV hospitalizations in adults aged 60 years or above (DAN-RSV): Rationale and trial design. Am Heart J. 2026 Jan;291:14-25. doi: 10.1016/j.ahj.2025.07.068. Epub 2025 Jul 28.

Reference Type DERIVED
PMID: 40738309 (View on PubMed)

Other Identifiers

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2024-516600-42-00

Identifier Type: CTIS

Identifier Source: secondary_id

DAN-RSV

Identifier Type: -

Identifier Source: org_study_id

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