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En undersøgelse for at lære om sikkerheden og immunresponsen af ​​en ny pneumokokvaccine hos voksne

22. september 2026 opdateret af: Pfizer

En fase 1/2, randomiseret, dobbeltblind undersøgelse af sikkerheden og immunogeniciteten af ​​en multivalent pneumokokkonjugatvaccine hos voksne 18 år og ældre

The purpose of this study is to learn about the safety and immune effects of a pneumococcal vaccine in adults. This vaccine can possibly provide protection against further pneumococcal disease.

This study will happen in 4 stages: Stage 1 is seeking participants who are between 18 years to 49 years of age. The participants will receive 1 of 2 pneumococcal vaccine candidates (different formulations) or 20vPnC (Prevnar 20) as a single shot given into the upper arm muscle.

Stage 2 will begin after participants have completed Stage 1, and a pneumococcal vaccine candidate has been decided.

Stage 2 is seeking participants who are adults 50 years of age and older. The participants will receive the chosen pneumococcal vaccine candidate from Stage 1 or 20vPnC (Prevnar 20). The vaccines will be given as a single shot into the upper arm muscle.

Stage 3 is seeking participants who are adults 50 years of age and older. The participants will receive the chosen pneumococcal vaccine candidate from Stage 1 or a licensed pneumococcal comparator vaccine. The vaccines will be given as a single shot into the upper arm muscle.

Stage 4 is seeking participants who are adults 50 years of age and older. The participants will receive either one of three pneumococcal vaccine candidates or one of two licensed pneumococcal comparator vaccines. The vaccines will be given as a single shot into the upper arm muscle.

Participants will take part in this study for about 6 months for Stage 1, Stage 3, and Stage 4 and 12 months for Stage 2. During this time participants will have from 2 to 4 clinic visits and 1 phone visit. At these clinic visits, participants will be asked if any side effects were experienced. The participants will also have to give blood samples during these clinic visits.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

1710

Fase

  • Fase 2
  • Fase 1

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

    • Florida
      • Doral, Florida, Forenede Stater, 33172
        • Alliance for Multispecialty Research, LLC
      • Hialeah, Florida, Forenede Stater, 33012
        • Indago Research & Health Center, Inc
    • Georgia
      • Stockbridge, Georgia, Forenede Stater, 30281
        • Clinical Research Atlanta
    • Illinois
      • Peoria, Illinois, Forenede Stater, 61614
        • Optimal Research
    • Louisiana
      • New Orleans, Louisiana, Forenede Stater, 70119
        • Alliance for Multispecialty Research, LLC
    • Michigan
      • Southfield, Michigan, Forenede Stater, 48034
        • Headlands Research - Detroit
    • New York
      • Rochester, New York, Forenede Stater, 14609
        • Rochester Clinical Research, LLC
      • Tarrytown, New York, Forenede Stater, 10591
        • IMA Evaluations, LLC dba IMA Clinical Research
    • North Carolina
      • Wilmington, North Carolina, Forenede Stater, 28401
        • Accellacare - Wilmington
    • Tennessee
      • Knoxville, Tennessee, Forenede Stater, 37909
        • AMR Clinical
      • Knoxville, Tennessee, Forenede Stater, 37920
        • AMR Clinical
    • Texas
      • Brownsville, Texas, Forenede Stater, 78526
        • Headlands Horizons LLC
      • Houston, Texas, Forenede Stater, 77065
        • DM Clinical Research- Cyfair
      • San Antonio, Texas, Forenede Stater, 78229
        • IMA Clinical Research San Antonio
      • San Antonio, Texas, Forenede Stater, 78229
        • Clinical Trials of Texas, LLC dba Flourish Research
      • Sugarland, Texas, Forenede Stater, 77478
        • Dynamed Clinical Research, LP d/b/a DM Clinical Research
      • Tomball, Texas, Forenede Stater, 77375
        • DM Clinical Research
      • Tomball, Texas, Forenede Stater, 77375
        • Dynamed Clinical Research, LP d/b/a DM Clinical Research
    • Utah
      • Salt Lake City, Utah, Forenede Stater, 84109
        • J. Lewis Research, Inc. / Foothill Family Clinic
      • Salt Lake City, Utah, Forenede Stater, 84109
        • J. Lewis Research, Inc.

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år og ældre (Voksen, Ældre voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Male or female participants ≥18 to<50 years of age (Stage 1) and ≥50 years of age (Stage 2, Stage 3, and Stage 4) at the time of consent
  • Adults determined by clinical assessment to be eligible for the study, including adults with preexisting stable disease within 12 weeks before receipt of study intervention
  • Participants willing to use acceptable contraception for at least 28 days after study intervention; female participants not of childbearing potential; male participants unable to father children
  • Phase 1 (Stage 1): Adults 18 through 49 years of age with no history of ever receiving a pneumococcal vaccine (ie, pneumococcal vaccine-naïve)
  • Phase 2 (Stages 2, 3, and 4): Adults ≥50 through 64 years of age with no history of ever receiving a pneumococcal vaccine (ie, pneumococcal vaccine-naïve) and adults 65 years of age and older with either no history of ever receiving a pneumococcal vaccine or who received PPSV23 >5 years prior to the first vaccination in this study (ie, experienced)

Exclusion Criteria:

  • History of severe adverse reaction associated with a vaccine and/or severe allergic reaction to any component in pneumococcal conjugate vaccines and any other diphtheria toxoid-containing vaccine
  • Serious chronic disorder that in the investigator's opinion would make the participant inappropriate for entry into the study
  • Medical or psychiatric condition (recent or active suicidal ideation/behavior or laboratory abnormality) that may increase risk of study participation or make participant inappropriate for the study
  • Known or suspected immunodeficiency or other conditions associated with immunosuppression
  • Planned receipt of any licensed or investigational pneumococcal vaccine, or planned receipt of any licensed or investigational pneumococcal vaccine through study participation
  • Receipt of any inactivated or otherwise nonlive vaccine within 14 days or any live vaccine within 28 days before administration of study intervention

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Forebyggelse
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Tredobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Phase 2 (Stage 4): Multivalent Pneumococcal Vaccine - Formulation 3

Participants to receive a single injection of Multivalent Pneumococcal Vaccine - Formulation 3.

Multivalent pneumococcal conjugate vaccine

Eksperimentel: Phase 1 (Stage 1): Multivalent Pneumococcal Vaccine - Formulation 1

Participants to receive a single injection of Multivalent Pneumococcal Vaccine - Formulation 1. This is a possible candidate for continuation in Phase 2 (Stage 2, 3, and 4).

Multivalent pneumococcal conjugate vaccine. This is a possible candidate for continuation in Phase 2 (Stages 2, 3, and 4).

Aktiv komparator: Phase 1 (Stage 1) and Phase 2 (Stage 2): 20-valent pneumococcal conjugate vaccine (20vPnC)

Participants to receive a single injection of 20vPnC.

20-valent pneumococcal conjugate vaccine (20vPnC)

Andre navne:
  • Prevnar 20
Eksperimentel: Phase 1 (Stage 1): Multivalent Pneumococcal Vaccine - Formulation 2

Participants to receive a single injection of Multivalent Pneumococcal Vaccine - Formulation 2. This is a possible candidate for continuation in Phase 2 (Stage 2, 3, and 4).

Multivalent pneumococcal conjugate vaccine. This is a possible candidate for continuation in Phase 2 (Stages 2, 3, and 4).

Aktiv komparator: Phase 2 (Stage 3): a licensed pneumococcal comparator vaccine

Participants to receive a single injection of a licensed pneumococcal comparator vaccine.

A licensed pneumococcal comparator vaccine

Eksperimentel: Phase 2 (Stage 4): Multivalent Pneumococcal Vaccine - Formulation 4

Participants to receive a single injection of Multivalent Pneumococcal Vaccine - Formulation 4.

Multivalent pneumococcal conjugate vaccine

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Percentage of participants reporting prespecified local reactions within 7 days after vaccination
Tidsramme: 7 days

Prespecified local reactions (redness, swelling, and pain at the injection site) after vaccination

7 days
Percentage of participants reporting prespecified systemic events within 7 days after vaccination
Tidsramme: 7 days

Prespecified systemic events (fever, headache, fatigue, muscle pain, and joint pain) after vaccination

7 days
Percentage of participants reporting Adverse Events (AEs) within 1 month after vaccination
Tidsramme: 1 month

Adverse events occurring within 1 month after vaccination

1 month
Percentage of participants reporting Serious Adverse Events (SAEs) within 6 months after vaccination
Tidsramme: 6 months

SAEs occurring within 6 months after vaccination

6 months
Phase 2 (Stage 2) Only: Percentage of participants reporting related Serious Adverse Events (SAEs) through 12 months after vaccination
Tidsramme: 12 months

Related SAEs occurring through 12 months after vaccination

12 months

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Phase 1 (Stage 1) and Phase 2 (Stage 2) Only: Pneumococcal opsonophagocytic activity (OPA) geometric mean titers (GMTs)
Tidsramme: 1 month after vaccination

Pneumococcal OPA GMTs 1 month after vaccination

1 month after vaccination

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

Efterforskere

  • Studieleder: Pfizer CT.gov Call Center, Pfizer

Publikationer og nyttige links

Den person, der er ansvarlig for at indtaste oplysninger om undersøgelsen, leverer frivilligt disse publikationer. Disse kan handle om alt relateret til undersøgelsen.

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart (Faktiske)

20. december 2023

Primær færdiggørelse (Faktiske)

12. maj 2026

Studieafslutning (Faktiske)

12. maj 2026

Datoer for studieregistrering

Først indsendt

8. december 2023

Først indsendt, der opfyldte QC-kriterier

21. december 2023

Først opslået (Faktiske)

26. december 2023

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

25. september 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

22. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • C4931001
  • NCT06182124 (Registry Identifier: ClinicalTrials.gov)

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.

Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter

Studerer et amerikansk FDA-reguleret lægemiddelprodukt

Ja

Studerer et amerikansk FDA-reguleret enhedsprodukt

Ingen

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .