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En klinisk undersøgelse af den nye pneumokokvaccine V118C hos børn (V118C-002)

30. september 2026 opdateret af: Merck Sharp & Dohme LLC

En fase 1, randomiseret, dobbeltblind, aktiv komparator-kontrolleret undersøgelse til evaluering af sikkerhed, tolerabilitet og immunogenicitet af en ny pneumokokvaccine hos børn

Researchers are looking for new vaccines to prevent pneumococcal disease, which is any infection in the lungs or other parts of the body that is caused by a type of bacteria called Streptococcus pneumoniae. V118C is a new vaccine designed to help prevent disease from Streptococcus pneumoniae bacteria.

This study will look at V118C in toddlers and infants. The goal of the study is to learn how safe V118C is for children and how well they tolerate it.

Studieoversigt

Status

Rekruttering

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Stage 1 of the study will be conducted in toddlers enrolled at 12 through 15 months of age who previously completed a primary 3-dose infant series with a licensed pneumococcal conjugate vaccine (PCV). Stage 2 will be conducted in infants enrolled at approximately 2 months of age, who will receive the 3+1 schedule (3 infant doses followed by a toddler dose).

Undersøgelsestype

Interventionel

Tilmelding (Anslået)

210

Fase

  • Fase 1

Kontakter og lokationer

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

Studiekontakt

Studiesteder

  • Forenede Stater
    • California
      • Madera, California, Forenede Stater, 93637
        • Rekruttering
        • Madera Family Medical Group ( Site 1004)
        • Kontakt:
          • Study Coordinator
          • Telefonnummer: 559-673-3000
    • Florida
      • Miami, Florida, Forenede Stater, 33142
        • Rekruttering
        • Acevedo Clinical Research Associates ( Site 1029)
        • Kontakt:
          • Study Coordinator
          • Telefonnummer: 305-649-8871
      • Tampa, Florida, Forenede Stater, 33606
        • Rekruttering
        • University of South Florida-Department of Pediatrics ( Site 1002)
        • Kontakt:
          • Study Coordinator
          • Telefonnummer: 813-821-8039
    • Kansas
      • Topeka, Kansas, Forenede Stater, 66604
        • Rekruttering
        • Cotton O'Neil Research Center ( Site 1039)
        • Kontakt:
          • Study Coordinator
          • Telefonnummer: 785-354-6000
    • Kentucky
      • Louisville, Kentucky, Forenede Stater, 40202
        • Rekruttering
        • University of Louisville, Norton Children's Research Institute ( Site 1005)
        • Kontakt:
          • Study Coordinator
          • Telefonnummer: 502-629-5820
    • Maryland
      • Columbia, Maryland, Forenede Stater, 21045
        • Rekruttering
        • The Pediatric Center ( Site 1025)
        • Kontakt:
          • Study Coordinator
          • Telefonnummer: 443-721-7224
    • Missouri
      • St Louis, Missouri, Forenede Stater, 63104
        • Rekruttering
        • Saint Louis University Center for Vaccine Development ( Site 1031)
        • Kontakt:
          • Study Coordinator
          • Telefonnummer: 314-977-6333
    • New York
      • East Syracuse, New York, Forenede Stater, 13057
        • Rekruttering
        • Child Health Care Associates ( Site 1035)
        • Kontakt:
          • Study Coordinator
          • Telefonnummer: 315-652-8800
    • South Carolina
      • Charleston, South Carolina, Forenede Stater, 29414
        • Rekruttering
        • Carolina Family Care ( Site 1021)
        • Kontakt:
          • Study Coordinator
          • Telefonnummer: 843-870-2225
      • Greenville, South Carolina, Forenede Stater, 29607
        • Rekruttering
        • Tribe Clinical Research, LLC-Pediatrics ( Site 1008)
        • Kontakt:
          • Study Coordinator
          • Telefonnummer: 864-334-0141
      • Spartanburg, South Carolina, Forenede Stater, 29301
        • Rekruttering
        • Tribe Clinical Research - Spartanburg ( Site 1001)
        • Kontakt:
          • Study Coordinator
          • Telefonnummer: 864-334-0141
    • Texas
      • Carrollton, Texas, Forenede Stater, 75006
        • Rekruttering
        • Epic Medical Research - Carrollton ( Site 1038)
        • Kontakt:
          • Study Coordinator
          • Telefonnummer: 972-777-6956
      • Garland, Texas, Forenede Stater, 75043
        • Rekruttering
        • Epic Medical Research- Garland ( Site 1017)
        • Kontakt:
          • Study Coordinator
          • Telefonnummer: 972-777-6956
      • League City, Texas, Forenede Stater, 77573
        • Rekruttering
        • University of Texas Medical Branch ( Site 1020)
        • Kontakt:
          • Study Coordinator
          • Telefonnummer: 832-340-2313
    • Virginia
      • Charlottesville, Virginia, Forenede Stater, 22902
        • Rekruttering
        • Pediatric Research of Charlottesville, LLC ( Site 1012)
        • Kontakt:
          • Study Coordinator
          • Telefonnummer: 434-872-9384

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

2 måneder til 1 år (Barn)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

The main inclusion criteria include but are not limited to the following:

Stage 1:

  • Is previously vaccinated with 3 routine infant doses of Pneumococcal 20-valent conjugate vaccine (PCV20)
  • Is 12 through 15 months of age

Stage 2:

- Is approximately 2 months of age

Both Stages:

  • Was born at full term (gestational age greater than or equal to 37 weeks)

Exclusion Criteria:

The main exclusion criteria include but are not limited to the following:

Stage 1:

- Has received a PCV dose at 10 months of age and older

Stage 2:

  • Has received prior administration of any pneumococcal vaccine

Both stages:

  • Has a history of invasive pneumococcal disease (IPD)
  • Has a known hypersensitivity to any component of V118C or PCV20 including diphtheria toxoid

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: Dobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: V118C (Stage 1)

Participants will receive a single 0.5 mL intramuscular (IM) injection of V118C administered at 12 to 15 months of age.
Biologisk: V118C (Stage 1)

IM administration of V118C
Eksperimentel: V118C (Stage 2)

Participants will receive a single 0.5 mL IM injection of V118C administered at 2,4,6, and 12 months of age.
Biologisk: V118C (Stage 2)

IM administration of V118C
Aktiv komparator: PCV20 (Stage 1)

Participants will receive a single 0.5 mL IM injection of PCV20 administered at 12 to 15 months of age.
Biologisk: PCV20 (Stage 1)

IM administration of PCV20
Aktiv komparator: PCV20 (Stage 2)

Participants will receive a single 0.5 mL IM injection of PCV20 administered at 2,4,6, and 12 months of age.
Biologisk: PCV20 (Stage 2)

IM administration of PCV20

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Stage 1: Percentage of Participants With Immediate Adverse Events (AEs) Following Vaccination
Tidsramme: Up to approximately 30 minutes postvaccination

An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. Percentage of participants with immediate AEs following vaccination will be reported.
Up to approximately 30 minutes postvaccination
Stage 1: Percentage of Participants With Solicited Injection-Site Adverse Events (AEs)
Tidsramme: Up to approximately 7 days postvaccination

An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. A solicited AE is a predefined event that participants legally acceptable representative (LAR) are specifically asked about and record on their electronic vaccine report card (eVRC). Solicited injection-site AEs include redness, swelling, pain or tenderness and hard lump. Percentage of participants with solicited injection-site AEs will be reported.
Up to approximately 7 days postvaccination
Stage 1: Percentage of Participants With Solicited Systemic AEs
Tidsramme: Up to approximately 7 days postvaccination

An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. A solicited AE is a predefined event that participants LAR are specifically asked about and record on their eVRC. Solicited systemic AEs include irritability, drowsiness, appetite lost, hives or welts, and fever. Percentage of participants with solicited systemic AEs will be reported.
Up to approximately 7 days postvaccination
Stage 1: Percentage of Participants With Unsolicited Systemic or Injection-Site AEs
Tidsramme: Up to approximately 28 days postvaccination

An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An unsolicited AE is an event that is not solicited using a eVRC and that is communicated by a participant. Percentage of participants with unsolicited Systemic or Injection-Site AEs will be reported.
Up to approximately 28 days postvaccination
Stage 1: Percentage of Participants With Serious Adverse Events (SAEs)
Tidsramme: Up to approximately 12 months postvaccination

A serious adverse event (SAE) is an AE that is life-threatening, requires or prolongs an existing hospitalization, results in persistent or significant disability or incapacity, is a congenital anomaly or birth defect, or is another important medical event deemed such by medical or scientific judgment. Percentage of participants with one or more SAEs will be reported.
Up to approximately 12 months postvaccination
Stage 1: Percentage of Participants With Medically Attended AEs (MAAEs)
Tidsramme: Up to approximately 12 months postvaccination

A MAAE is defined as an adverse event in which medical attention is received during an unscheduled, non-routine outpatient visit, such as an emergency department visit, office visit, or an urgent care visit with any medical personnel for any reason. Percentage of participants with MAAEs will be reported.
Up to approximately 12 months postvaccination
Stage 2: Percentage of Participants With Immediate AEs Following Vaccination
Tidsramme: Up to approximately 30 minutes after each vaccination

An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. Percentage of participants with immediate AEs following vaccination will be reported.
Up to approximately 30 minutes after each vaccination
Stage 2: Percentage of Participants With Solicited Injection-Site AEs
Tidsramme: Up to approximately 7 days after each vaccination

An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. A solicited AE is a predefined event that participants LAR are specifically asked about and record on their eVRC. Solicited injection-site AEs include redness, swelling, pain or tenderness and hard lump. Percentage of participants with solicited injection-site AEs will be reported.
Up to approximately 7 days after each vaccination
Stage 2: Percentage of Participants With Solicited Systemic AEs
Tidsramme: Up to approximately 7 days after each vaccination

An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. A solicited AE is a predefined event that participants LAR are specifically asked about and record on their eVRC. Solicited systemic AEs include irritability, drowsiness, appetite lost, hives or welts, and fever. Percentage of participants with solicited systemic AEs will be recorded.
Up to approximately 7 days after each vaccination
Stage 2: Percentage of Participants With Unsolicited Systemic or Injection-Site AEs
Tidsramme: Up to approximately 28 days after each vaccination

An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention. An unsolicited AE is an event that is not solicited using a eVRC and that is communicated by a participant. Percentage of participants with unsolicited Systemic or Injection-Site AEs will be reported.
Up to approximately 28 days after each vaccination
Stage 2: Percentage of Participants With SAEs
Tidsramme: Up to approximately 12 months postdose 4

A SAE is an AE that is life-threatening, requires or prolongs an existing hospitalization, results in persistent or significant disability or incapacity, is a congenital anomaly or birth defect, or is another important medical event deemed such by medical or scientific judgment. Percentage of participants with one or more SAEs will be reported.
Up to approximately 12 months postdose 4
Stage 2: Percentage of Participants With MAAEs
Tidsramme: Up to approximately 12 months postdose 4

A MAAE is defined as an adverse event in which medical attention is received during an unscheduled, non-routine outpatient visit, such as an emergency department visit, office visit, or an urgent care visit with any medical personnel for any reason. Percentage of participants with MAAEs will be reported.
Up to approximately 12 months postdose 4

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Stage 1: Geometric Mean Concentrations (GMCs) of Serotype-Specific Immunoglobulin G (IgG)
Tidsramme: Up to approximately 30 days post vaccination

The GMCs for serotype-specific IgG antibodies will be determined using pneumococcal electrochemiluminescence (Pn ECL) assay. GMCs of Serotype-specific IgG at 30 days postvaccination with V118C and PCV20 will be reported.
Up to approximately 30 days post vaccination
Stage 1: Ratio of GMCs of Serotype-Specific IgG of V118C to PCV20 [V118C/PCV20]
Tidsramme: Approximately Day 30 postvaccination

The GMCs for serotype-specific IgG antibodies will be determined using pneumococcal electrochemiluminescence (Pn ECL) assay. Ratio of GMCs of serotype-specific IgG of V118C to PCV20 will be reported.
Approximately Day 30 postvaccination
Stage 1: Geometric Mean Fold Rises (GMFRs) of Serotype-Specific Immunoglobulin G (IgG)
Tidsramme: Day 1 (Baseline) and approximately Day 30 postvaccination

Geometric mean fold rise (GMFR) is defined as the geometric mean of the ratio of concentration at Day 30 after vaccination divided by concentration at baseline. GMFRs of serotype-specific IgG from baseline (Day 1) to Day 30 with V118C and PCV20 for IgG responses will be reported.
Day 1 (Baseline) and approximately Day 30 postvaccination
Stage 1: Percentage of Participants With a ≥ 4-fold Rise for Serotype Specific IgG Concentrations
Tidsramme: Day 1 (Baseline) and approximately Day 30 postvaccination

The percentage of participants with ≥4-fold rise from baseline (Day 1) to Day 30 with V118C and PCV20 for IgG responses will be reported.
Day 1 (Baseline) and approximately Day 30 postvaccination
Stage 2: Percentage of Participants With IgG ≥0.35 μg/mL (Response Rates) for Serotype Specific IgG Concentrations at 30 Days Postdose 3
Tidsramme: Up to approximately 30 days postdose 3

Percentage of participants with IgG ≥0.35 μg/mL (response rates) for each serotype at 30 days postdose 3 (PD3) with V118C and PCV20 will be reported will be reported.
Up to approximately 30 days postdose 3
Stage 2: Percentage of Participants With IgG ≥0.35 μg/mL (Response Rates) for Serotype Specific IgG Concentrations at 30 Days Predose 4
Tidsramme: Up to approximately 6 months post dose 3

Percentage of participants with IgG ≥0.35 μg/mL (response rates) for each serotype at predose 4 (PD4) with V118C and PCV20 will be reported.
Up to approximately 6 months post dose 3
Stage 2: Percentage of Participants With IgG ≥0.35 μg/mL (Response Rates) for Serotype Specific IgG Concentrations at 30 Days Postdose 4
Tidsramme: Up to approximately 30 days postdose 4

Percentage of participants with IgG ≥0.35 μg/mL (response rates) for each serotype at 30 days postdose 4 with V118C and PCV20 will be reported.
Up to approximately 30 days postdose 4
Stage 2: Difference in the Response Rates [V118C minus PCV20] for Each Serotype at 30 Days Postdose 3
Tidsramme: Up to approximately 30 days postdose 3

Difference in the response rates [V118C minus PCV20] for each serotype at 30 days postdose 3 with V118C and PCV20 will be reported.
Up to approximately 30 days postdose 3
Stage 2: Difference in the Response Rates [V118C Minus PCV20] for Each Serotype at 30 Days Postdose 4
Tidsramme: Up to approximately 30 days postdose 4

Difference in the response rates [V118C minus PCV20] for each serotype at 30 days postdose 4 with V118C and PCV20 will be reported.
Up to approximately 30 days postdose 4
Stage 2: GMCs of Serotype-Specific IgG at 30 Days Postdose 3
Tidsramme: Up to approximately 30 days postdose 3

The GMCs for serotype-specific IgG antibodies will be determined using pneumococcal electrochemiluminescence (Pn ECL) assay. GMCs of serotype-specific IgG at 30 days postdose 3 with V118C and PCV20 will be reported.
Up to approximately 30 days postdose 3
Stage 2: GMCs of Serotype-Specific IgG at 30 Days Predose 4
Tidsramme: Up to approximately 6 months post dose 3

The GMCs for serotype-specific IgG antibodies will be determined using pneumococcal electrochemiluminescence (Pn ECL) assay. Serotype-specific IgG GMCs at 30 days predose 4 with V118C and PCV20 will be reported.
Up to approximately 6 months post dose 3
Stage 2: GMCs of Serotype-Specific IgG at 30 Days Postdose 4
Tidsramme: Up to approximately 30 days postdose 4

The GMCs for serotype-specific IgG antibodies will be determined using pneumococcal electrochemiluminescence (Pn ECL) assay. Serotype-specific IgG GMCs at 30 days postdose 4 with V118C and PCV20 will be reported.
Up to approximately 30 days postdose 4
Stage 2: Ratio of Serotype-Specific IgG GMCs of V118C to PCV20 [V118C/PCV20] at 30 Days Postdose 3
Tidsramme: Up to approximately 30 days postdose 3

The GMCs for serotype-specific IgG antibodies will be determined using pneumococcal electrochemiluminescence (Pn ECL) assay. Ratio of serotype-specific IgG GMCs of V118C to PCV20 [V118C/PCV20] at 30 days postdose 3 will be reported.
Up to approximately 30 days postdose 3
Stage 2: Ratio of Serotype-Specific IgG GMCs of V118C to PCV20 [V118C/PCV20] at 30 Days Postdose 4
Tidsramme: Up to approximately 30 days postdose 4

The GMCs for serotype-specific IgG antibodies will be determined using pneumococcal electrochemiluminescence (Pn ECL) assay. Ratio of serotype-specific IgG GMCs of V118C to PCV20 [V118C/PCV20] at 30 days postdose 4 will be reported.
Up to approximately 30 days postdose 4

Samarbejdspartnere og efterforskere

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

Sponsor

Merck Sharp & Dohme LLC

Efterforskere

  • Studieleder: Medical Director, Merck Sharp & Dohme LLC

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.

Hjælpsomme links

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)

13. januar 2026

Primær færdiggørelse (Anslået)

24. oktober 2028

Studieafslutning (Anslået)

25. maj 2029

Datoer for studieregistrering

Først indsendt

10. december 2025

Først indsendt, der opfyldte QC-kriterier

10. december 2025

Først opslået (Faktiske)

23. december 2025

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Faktiske)

2. oktober 2026

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

30. september 2026

Sidst verificeret

1. september 2026

Mere information

Begreber relateret til denne undersøgelse

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • V118C-002

Plan for individuelle deltagerdata (IPD)

Planlægger du at dele individuelle deltagerdata (IPD)?

JA

IPD-planbeskrivelse

https://trialstransparency.msdclinicaltrials.com/pdf/ProcedureAccessClinicalTrialData.pdf

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 .

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