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Une étude clinique du nouveau vaccin antipneumococcique V118C chez les enfants (V118C-002)

30 septembre 2026 mis à jour par: Merck Sharp & Dohme LLC

Une étude de phase 1, randomisée, en double aveugle, contrôlée par comparateur actif, visant à évaluer l'innocuité, la tolérance et l'immunogénicité d'un nouveau vaccin antipneumococcique chez les enfants

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.

Aperçu de l'étude

Statut

Recrutement

Les conditions

Intervention / Traitement

Description détaillée

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).

Type d'étude

Interventionnel

Inscription (Estimé)

210

Phase

  • La phase 1

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

Lieux d'étude

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

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

2 mois à 1 an (Enfant)

Accepte les volontaires sains

Oui

Sexes éligibles pour l'étude

Tout

La description

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

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: La prévention
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Double

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: V118C (Stage 1)

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

IM administration of V118C
Expérimental: 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.
Biologique: V118C (Stage 2)

IM administration of V118C
Comparateur actif: PCV20 (Stage 1)

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

IM administration of PCV20
Comparateur actif: 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.
Biologique: PCV20 (Stage 2)

IM administration of PCV20

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Stage 1: Percentage of Participants With Immediate Adverse Events (AEs) Following Vaccination
Délai: 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)
Délai: 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
Délai: 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
Délai: 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)
Délai: 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)
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Stage 1: Geometric Mean Concentrations (GMCs) of Serotype-Specific Immunoglobulin G (IgG)
Délai: 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]
Délai: 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)
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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
Délai: 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

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

Merck Sharp & Dohme LLC

Les enquêteurs

  • Directeur d'études: Medical Director, Merck Sharp & Dohme LLC

Publications et liens utiles

La personne responsable de la saisie des informations sur l'étude fournit volontairement ces publications. Il peut s'agir de tout ce qui concerne l'étude.

Liens utiles

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

13 janvier 2026

Achèvement primaire (Estimé)

24 octobre 2028

Achèvement de l'étude (Estimé)

25 mai 2029

Dates d'inscription aux études

Première soumission

10 décembre 2025

Première soumission répondant aux critères de contrôle qualité

10 décembre 2025

Première publication (Réel)

23 décembre 2025

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

2 octobre 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

30 septembre 2026

Dernière vérification

1 septembre 2026

Plus d'information

Termes liés à cette étude

Termes MeSH pertinents supplémentaires

Autres numéros d'identification d'étude

  • V118C-002

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

OUI

Description du régime IPD

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

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Oui

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

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