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OpenTrials
Completed

NCT Number: NCT06611033

A Study of V118 Formulation C (V118C) in Healthy Participants (V118C-001)

The goal of this study is to learn how safe V118 Formulation C is in Healthy Adults and how well people tolerate it.

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Key information

Conditions

Age range

18 year–49 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 1

Primary location

Velocity Clinical Research, Hallandale Beach ( Site 0003), Hallandale, Florida, United States

Loading trial locations.

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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

  • Is in good health before randomization

Exclusion criteria

  • Has a history of invasive pneumococcal disease or known history of other culture-positive pneumococcal disease within 3 years prior to receiving study vaccination.
  • Has a history of clinically significant endocrine, GI, cardiovascular, hematological, hepatic, immunological, renal, respiratory, genitourinary, or major neurological (including stroke and chronic seizures) abnormalities or diseases.

Treatment and study plan

V118C

Biological

Intramuscular Administration

V118

Biological

Intramuscular Administration

PREVNAR 20™

Biological

Intramuscular Administration

Saline

Biological

Intramuscular Administration

Primary outcomes

  1. Number of Participants with Solicited Injection Site Adverse Events (AEs)

    Time frame: Up to approximately 7 days after each vaccination

    An AE is defined as any unfavorable and unintended sign including an abnormal laboratory finding, symptom or disease associated with the use of a medical treatment or procedure, regardless of whether it is considered related to the medical treatment or procedure, that occurs during the course of the study. The number of participants with a solicited injection-site AE will be reported.

  2. Number of Participants with Solicited Systemic AEs

    Time frame: Up to approximately 7 days after each vaccination

    An AE is defined as any unfavorable and unintended sign including an abnormal laboratory finding, symptom or disease associated with the use of a medical treatment or procedure, regardless of whether it is considered related to the medical treatment or procedure, that occurs during the course of the study. The number of participants with a solicited systemic AE will be reported.

  3. Number of Participants with Immediate AEs Following Vaccination

    Time frame: Up to approximately 30 minutes after each vaccination

    An AE is defined as any unfavorable and unintended sign including an abnormal laboratory finding, symptom or disease associated with the use of a medical treatment or procedure, regardless of whether it is considered related to the medical treatment or procedure, that occurs during the course of the study. The number of participants with Immediate AEs following vaccination will be reported.

  4. Number of Participants with Unsolicited AEs

    Time frame: Up to approximately 28 days after each vaccination

    An AE is defined as any unfavorable and unintended sign including an abnormal laboratory finding, symptom or disease associated with the use of a medical treatment or procedure, regardless of whether it is considered related to the medical treatment or procedure, that occurs during the course of the study. An unsolicited AE is an AE that is not solicited using a vaccine report card (VRC) and that is communicated by a participant. The number of participants that experienced an unsolicited AE will be reported.

  5. Number of Participants With a Serious Adverse Event (SAE)

    Time frame: Up to approximately 12 months after final vaccination

    An SAE is defined as any untoward medical occurrence that at any dose, results in death, is life-threatening, requires inpatient hospitalization or prolongation of existing hospitalization, results in persistent or significant disability/incapacity, or is a congenital anomaly/birth defect. The number of participants who experience an SAE will be reported.

  6. Number of Participants with a Medically Attended Adverse Event (MAAE)

    Time frame: Up to approximately 12 months after final vaccination

    An MAAE is defined as an adverse event in which medical attention is received during an unscheduled, non-routine outpatient visit, such as an emergency room visit, office visit, or an urgent care visit with any medical personnel for any reason. The number of participants who experience an MAAE will be reported.

  7. Number of Participants with an Event of Clinical Interest (ECI)

    Time frame: Up to approximately 12 months after final vaccination

    An ECI includes but is not limited to: 1) An overdose defined as: A participant receiving more than 1 dose of study vaccine in a 24-hour period or more than 2 doses of study vaccine throughout the study. 2) Potential drug-induced liver injury (DILI) events defined as: An elevated aspartate aminotransferase (AST) or alanine aminotransferase (ALT) lab value that is ≥3 times the upper limit of normal (ULN) and an elevated total bilirubin lab value that is ≥2 times ULN and, at the same time, an alkaline phosphatase lab value that is <2 times ULN, as determined by way of protocol-specified laboratory testing or unscheduled laboratory testing. 3) Potential immune-mediated disease (pIMDs) defined as: A subset of AEs that include either an established autoimmune disease(s) or Inflammatory and/or neurologic disorder(s), which might or might not have an autoimmune etiology. The number of participants who experience an ECI will be reported.

Secondary outcomes

  1. Serotype-specific Immunoglobulin G (IgG) geometric mean concentrations (GMCs)

    Time frame: Day 28 postvaccination

    The GMCs for serotype-specific IgG antibodies will be determined using pneumococcal electrochemiluminescence (Pn ECL) assay.

Sponsors and collaborators

Lead sponsor

Merck Sharp & Dohme LLC

Industry

Registry information

Official study title

A Randomized, Double-Blind Study to Evaluate the Safety, Tolerability, and Immunogenicity of V118 Formulation C in Healthy Adults

Important dates

Study start
2024
Primary completion
2026
Study completion
2026
First posted
Sep 24, 2024
Registry last updated
Jan 20, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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