NCT05767606

Brief Summary

Vaccination is a key strategy for preventing respiratory illnesses. Pneumococcal vaccination is recommended for all adults aged over 60 or 65 years (depending local guidelines) who have never received a pneumococcal vaccine or whose previous vaccination history is unknown. Given their wide application, co-administration of pneumococcal and Covid-19 vaccines may support broad population-wide coverage. However, it is unclear whether the co-administration of the Novavax (NVX) vaccine and a 20-valent pneumococcal conjugate vaccine (PCV20) results in lower immunogenicity than the administration of either alone. The investigators will thus conduct a 4-four arm study with the following treatments: NVX plus placebo (NVX arm), PCV20 plus placebo group (PCV20 arm), NVX plus PCV20 (Combination arm), and placebo plus placebo group (Placebo arm). Vaccines and/or placebo will be administered as single doses, given as intramuscular injections on Day 1 (one in each shoulder). Subjects will be randomly assigned to one of the four arms. The outcome will be the antibody levels after 28 days.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
256

participants targeted

Target at P50-P75 for phase_4 covid19

Timeline
Completed

Started Mar 2023

Shorter than P25 for phase_4 covid19

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2023

Completed
1 day until next milestone

First Submitted

Initial submission to the registry

March 2, 2023

Completed
12 days until next milestone

First Posted

Study publicly available on registry

March 14, 2023

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2023

Completed
1 month until next milestone

Study Completion

Last participant's last visit for all outcomes

August 1, 2023

Completed
Last Updated

March 15, 2023

Status Verified

March 1, 2023

Enrollment Period

4 months

First QC Date

March 2, 2023

Last Update Submit

March 13, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Immunogenicity

    Antibody levels

    Day 28

Study Arms (4)

NVX arm

ACTIVE COMPARATOR

NVX plus placebo

Biological: NVX

PCV20 arm

ACTIVE COMPARATOR

PCV20 (Apexxnar®) plus placebo

Biological: PCV20

Combination arm

EXPERIMENTAL

NVX plus PCV20

Biological: NVXBiological: PCV20

Placebo arm

PLACEBO COMPARATOR

Placebo (normal saline) plus placebo

Biological: Placebo

Interventions

NVXBIOLOGICAL

Administration of NVX

Combination armNVX arm
PCV20BIOLOGICAL

Administration of PCV20

Combination armPCV20 arm
PlaceboBIOLOGICAL

No intervention

Placebo arm

Eligibility Criteria

Age60 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Age: 60 years or older
  • Males and females
  • Able and willing (in the investigator's opinion) to comply with all study requirements.
  • Participants, who already received three Covid-19 vaccines, of which the third was a mRNA vaccine (BNT162b2 or mRNA-1273) and at least 16 weeks ago
  • Only applicable for women: last menstrual bleeding more than one year ago

You may not qualify if:

  • Use of immunosuppressants
  • Congenital or acquired immunodeficiency (eg, history of HIV infection, hematological disease, current malignancy, or others)
  • Chronic condition that may significantly interfere with the immune response in the opinion of the investigator
  • History of Covid-19 within 16 weeks before study vaccination
  • Previous pneumococcal vaccination
  • Contraindication against any ingredient of the NVX or the PCV20 vaccine

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Jorda A, Prager M, Pracher L, Haselwanter P, Jackwerth M, Al Jalali V, Yildiz E, Leutzendorff A, Weber M, Yourieva S, Kammerer P, Pecho T, Decaminada A, Ederer L, Wiedermann U, Weseslindtner L, Redlberger-Fritz M, Bergmann F, Zeitlinger M. Immunogenicity, safety, and reactogenicity of concomitant administration of the novavax vaccine against Omicron XBB.1.5 (NVX-CoV2601) and a 20-valent pneumococcal conjugate vaccine in adults aged >/=60 years: A randomised, double-blind, placebo-controlled, non-inferiority trial. J Infect. 2025 Feb;90(2):106405. doi: 10.1016/j.jinf.2024.106405. Epub 2025 Jan 3.

MeSH Terms

Conditions

COVID-19Pneumococcal Infections

Condition Hierarchy (Ancestors)

Pneumonia, ViralPneumoniaRespiratory Tract InfectionsInfectionsVirus DiseasesCoronavirus InfectionsCoronaviridae InfectionsNidovirales InfectionsRNA Virus InfectionsLung DiseasesRespiratory Tract DiseasesStreptococcal InfectionsGram-Positive Bacterial InfectionsBacterial InfectionsBacterial Infections and Mycoses

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof. Dr.

Study Record Dates

First Submitted

March 2, 2023

First Posted

March 14, 2023

Study Start

March 1, 2023

Primary Completion

July 1, 2023

Study Completion

August 1, 2023

Last Updated

March 15, 2023

Record last verified: 2023-03