A Study to Evaluate the Safety, Tolerability, and Immunogenicity of V114 Followed by PNEUMOVAX™23 in Healthy Adults 50 Years of Age or Older (V114-016/PNEU-PATH) (PNEU-PATH)

October 25, 2021 updated by: Merck Sharp & Dohme LLC

A Phase 3, Multicenter, Randomized, Double-blind, Active Comparator-controlled Study to Evaluate the Safety, Tolerability, and Immunogenicity of V114 Followed by Administration of PNEUMOVAX™23 One Year Later in Healthy Adults 50 Years of Age or Older (PNEU-PATH)

This study is designed 1) to evaluate the safety, tolerability, and immunogenicity of V114 and Prevnar 13™, 2) to describe the safety of sequential administration of V114 or Prevnar 13™ followed by PNEUMOVAX™23, and 3) to evaluate the immune responses to the 15 serotypes contained in V114 when PNEUMOVAX™23 is given approximately 12 months after receipt of either V114 or Prevnar 13™ in healthy adults 50 years of age or older. There was no formal hypothesis testing.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
652

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Korea, Republic of
      • Seoul, Korea, Republic of, 03080
        • Seoul National University Hospital ( Site 0400)
      • Seoul, Korea, Republic of, 08308
        • Korea University Guro Hospital ( Site 0401)
  • Spain
      • Alicante, Spain, 03004
        • Instituto de Ciencias Medicas.ICM ( Site 0301)
      • Valencia, Spain, 46015
        • Fundacion Oftalmologica del Mediterraneo ( Site 0300)
    • Barcelona
      • Centelles, Barcelona, Spain, 08540
        • CAP Centelles ( Site 0303)
  • Taiwan
      • Taipei, Taiwan, 100
        • National Taiwan University Hospital ( Site 0500)
      • Taiwan, Taiwan, 70403
        • National Cheng Kung University Hospital ( Site 0502)
  • United States
    • Arizona
      • Chandler, Arizona, United States, 85224
        • East Valley Family Physicians ( Site 0104)
      • Phoenix, Arizona, United States, 85020
        • Central Phoenix Medical Clinic, LLC ( Site 0125)
    • California
      • Spring Valley, California, United States, 91978
        • Encompass Clinical Research ( Site 0118)
      • Walnut Creek, California, United States, 94598
        • Diablo Clinical Research, Inc ( Site 0132)
    • Florida
      • Coral Gables, Florida, United States, 33134
        • Clinical Research of South Florida ( Site 0126)
      • South Miami, Florida, United States, 33143
        • QPS Miami Research Associates ( Site 0116)
    • Kansas
      • Wichita, Kansas, United States, 67207
        • Heartland Research Associates, Llc ( Site 0115)
    • Maryland
      • Elkridge, Maryland, United States, 21075
        • Centennial Medical Group ( Site 0109)
    • Ohio
      • Cleveland, Ohio, United States, 44122
        • Rapid Medical Research, Inc. ( Site 0119)
    • Texas
      • Galveston, Texas, United States, 77555-1115
        • University of Texas Medical Branch at Galveston ( Site 0127)
      • Houston, Texas, United States, 77081
        • Texas Center For Drug Development ( Site 0107)
      • San Antonio, Texas, United States, 78229
        • Diagnostics Research Group ( Site 0100)
    • Utah
      • Salt Lake City, Utah, United States, 84109
        • J Lewis Research Inc / Foothill Family Clinic ( Site 0123)
      • South Jordan, Utah, United States, 84095
        • J Lewis Research Inc/Jordan River Family Medicine ( Site 0114)
    • Virginia
      • Newport News, Virginia, United States, 23606
        • Health Research of Hampton Roads, Inc. ( Site 0106)

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

50 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Male or female in good health
  • Female participant: not pregnant, not breastfeeding and 1) not of childbearing potential, or 2) of childbearing potential and agrees to practice contraception through 6 weeks after administration of last study vaccine.

Exclusion Criteria

  • History of invasive pneumococcal disease
  • Known hypersensitivity to any component of pneumococcal polysaccharide vaccine, pneumococcal conjugate vaccine, or any diphtheria toxoid-containing vaccine.
  • Known or suspected impairment of immune function
  • Coagulation disorder contraindicating intramuscular vaccination
  • History of malignancy ≤5 years before enrollment, except for adequately treated basal cell or squamous cell skin cancer or in situ cervical cancer
  • Female participant: positive urine or serum pregnancy test
  • Prior administration of any pneumococcal vaccine
  • Received systemic corticosteroids (prednisone equivalent of ≥20 mg/day) for ≥14 consecutive days and has not completed intervention at least 30 days before study entry.
  • Received systemic corticosteroids exceeding physiologic replacement doses (approximately 5 mg/day prednisone equivalent) within 14 days before vaccination. (Note: Topical, ophthalmic, intra-articular or soft-tissue [e.g., bursa, tendon steroid injections], and inhaled/nebulized steroids are permitted).
  • Received immunosuppressive therapy
  • Received a blood transfusion or blood products within 6 months of enrollment
  • Participated in another clinical study of an investigational product within 2 months of enrollment
  • Current user of recreational or illicit drugs or history of drug or alcohol abuse or dependence.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: V114
Participants will receive a single 0.5 mL intramuscular (IM) injection of V114 on Day 1 (Vaccination 1) and a single 0.5 mL IM injection of PNEUMOVAX™23 at Month 12 (Vaccination 2)
Biological: V114
15-valent pneumococcal conjugate vaccine with serotypes 1, 3, 4, 5, 6A, 7F, 9V, 14, 18C, 19A, 19F, 22F, 23F, 33F (2 mcg each), serotype 6B (4 mcg) and Merck Aluminum Phosphate Adjuvant (125 mcg) in each 0.5 mL dose
Biological: PNEUMOVAX™23
23-valent pneumococcal polysaccharide vaccine with serotypes 1, 2, 3, 4, 5, 6B, 7F, 8, 9N, 9V, 10A, 11A, 12F, 14, 15B, 17F, 18C, 19A, 19F, 20, 22F, 23F, 33F (25 mcg each) in each 0.5 mL dose
Other Names:
  • PPV23
Active Comparator: Prevnar 13™
Participants will receive a single 0.5 mL IM injection of Prevnar 13™ on Day 1 (Vaccination 1) and a single 0.5 mL IM injection of PNEUMOVAX™23 at Month 12 (Vaccination 2)
Biological: PNEUMOVAX™23
23-valent pneumococcal polysaccharide vaccine with serotypes 1, 2, 3, 4, 5, 6B, 7F, 8, 9N, 9V, 10A, 11A, 12F, 14, 15B, 17F, 18C, 19A, 19F, 20, 22F, 23F, 33F (25 mcg each) in each 0.5 mL dose
Other Names:
  • PPV23
Biological: Prevnar 13™
13-valent pneumococcal conjugate vaccine with serotypes 1, 3, 4, 5, 6A, 7F, 9V, 14, 18C, 19A, 19F, 23F (2.2 mcg) and 6B (4.4 mcg) and aluminum phosphate adjuvant (125 mcg) in each 0.5 mL dose
Other Names:
  • PCV13

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Percentage of Participants With Solicited Injection-site Adverse Events Following V114 or Prevnar 13™
Time Frame: Up to 5 days after Vaccination 1
An adverse event (AE) is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. Following vaccination with V114 or Prevnar 13™, the percentage of participants with solicited injection-site AEs was assessed. The solicited injection-site AEs assessed were redness/erythema, swelling, and tenderness/pain.
Up to 5 days after Vaccination 1
Percentage of Participants With Solicited Injection-site Adverse Events Following PNEUMOVAX™23
Time Frame: Up to 5 days after Vaccination 2
An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. Following vaccination with PNEUMOVAX™23, the percentage of participants with solicited systemic AEs was assessed. The solicited systemic AEs assessed were muscle pain/myalgia, joint pain/arthralgia, headache, and tiredness/fatigue.
Up to 5 days after Vaccination 2
Percentage of Participants With Solicited Systemic Adverse Events Following V114 or Prevnar 13™
Time Frame: Up to 14 days after Vaccination 1
An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. Following vaccination with V114 or Prevnar 13™, the percentage of participants with solicited systemic AEs was assessed. The solicited systemic AEs assessed were muscle pain/myalgia, joint pain/arthralgia, headache, and tiredness/fatigue.
Up to 14 days after Vaccination 1
Percentage of Participants With Solicited Systemic Adverse Events Following PNEUMOVAX™23
Time Frame: Up to 14 days after Vaccination 2
An AE is any untoward medical occurrence in a patient or clinical study participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. Following vaccination with PNEUMOVAX™23, the percentage of participants with solicited systemic AEs was assessed. The solicited systemic AEs assessed were muscle pain/myalgia, joint pain/arthralgia, headache, and tiredness/fatigue.
Up to 14 days after Vaccination 2
Percentage of Participants With Vaccine-related Serious Adverse Events Following V114 or Prevnar 13™
Time Frame: Up to 12 months after Vaccination 1
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. Relatedness of an SAE to the study vaccine will be determined by the investigator. Following vaccination with V114 or Prevnar 13™, the percentage of participants with vaccine-related serious adverse events was assessed.
Up to 12 months after Vaccination 1
Percentage of Participants With Vaccine-related Serious Adverse Events Following PNEUMOVAX™23
Time Frame: Month 12 to Month 13 (Up to 44 days after Vaccination 2)
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. Relatedness of an SAE to the study vaccine will be determined by the investigator. Following vaccination with PNEUMOVAX™23, the percentage of participants with vaccine-related serious adverse events was assessed.
Month 12 to Month 13 (Up to 44 days after Vaccination 2)
Geometric Mean Titer of Serotype-specific Opsonophagocytic Activity at 30 Days Following PNEUMOVAX™23
Time Frame: Month 13 (30 days after Vaccination 2)
Serotype-specific opsonophagocytic activity (OPA) geometric mean titers (GMTs) (estimated) and GMT ratios with 95% confidence intervals (CIs) were calculated using a constrained longitudinal data analysis (cLDA) model utilizing data from both vaccination groups. Per the statistical analysis plan, the only CIs calculated were the between-group CIs (for the GMT ratios); within-group CIs were not calculated. OPA for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) will be determined using a Multiplexed Opsonophagocytic Assay.
Month 13 (30 days after Vaccination 2)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Geometric Mean Concentration of Serotype-specific Immunoglobulin G at 30 Days Following PNEUMOVAX™23
Time Frame: Month 13 (30 days after Vaccination 2)
Serotype-specific Immunoglobulin G (IgG) geometric mean concentrations (GMCs) (estimated) and GMC ratios with 95% confidence intervals (CIs) were calculated using a constrained longitudinal data analysis (cLDA) model utilizing data from both vaccination groups. Per the statistical analysis plan, the only CIs calculated were the between-group CIs (for the GMC ratios); within-group CIs were not calculated. IgG for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) will be determined using an electrochemiluminescence assay.
Month 13 (30 days after Vaccination 2)
GMT of Serotype-specific OPA at Day 30
Time Frame: Day 30
Serotype-specific OPA GMTs (estimated) and GMT ratios with 95% CIs were calculated using a constrained longitudinal data analysis (cLDA) model utilizing data from both vaccination groups. Per the statistical analysis plan, the only CIs calculated were the between-group CIs (for the GMT ratios); within-group CIs were not calculated. OPA for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) will be determined using a Multiplexed Opsonophagocytic Assay.
Day 30
GMC of Serotype-specific IgG at Day 30
Time Frame: Day 30
Serotype-specific IgG GMC (estimated) and GMC ratios with 95% CIs were calculated using a constrained longitudinal data analysis (cLDA) model utilizing data from both vaccination groups. Per the statistical analysis plan, the only CIs calculated were the between-group CIs (for the GMC ratios); within-group CIs were not calculated. IgG for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) will be determined using an electrochemiluminescence assay.
Day 30
Geometric Mean Fold Rise in Serotype-specific OPA Day 1 to Day 30
Time Frame: Day 1 (Baseline) and Day 30
Activity for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) was determined using a Multiplexed Opsonophagocytic Assay. Geometric mean fold rise (GMFR) is the geometric mean of fold rise from baseline to postvaccination.
Day 1 (Baseline) and Day 30
GMFR in Serotype-specific IgG Day 1 to Day 30
Time Frame: Day 1 (Baseline) and Day 30
Activity for the serotypes contained in Prevnar 13™ and V114 and (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) was determined using an electrochemiluminescence assay. GMFR is the geometric mean of fold rise from baseline to postvaccination.
Day 1 (Baseline) and Day 30
Percentage of Participants With ≥4-Fold Rise in Serotype-specific OPA Titer Day 1 to Day 30
Time Frame: Day 1 (Baseline) and Day 30
Activity for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) will be determined using a Multiplexed Opsonophagocytic Assay. The percentage of participants who had ≥4-fold rise in OPA titers were calculated from baseline to postvaccination.
Day 1 (Baseline) and Day 30
Percentage of Participants With ≥4-Fold Rise in Serotype-specific IgG Concentration Day 1 to Day 30
Time Frame: Day 1 (Baseline) and Day 30
Activity for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) will be determined using an electrochemiluminescence assay. The percentage of participants who had ≥ 4-fold rise in IgG concentration are calculated from baseline to postvaccination.
Day 1 (Baseline) and Day 30
GMT of Serotype-specific OPA at Month 12
Time Frame: Month 12
Serotype-specific OPA GMTs (estimated) and GMT ratios with 95% CIs were calculated using a constrained longitudinal data analysis (cLDA) model utilizing data from both vaccination groups. Per the statistical analysis plan, the only CIs calculated were the between-group CIs (for the GMT ratios); within-group CIs were not calculated. OPA for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) will be determined using a Multiplexed Opsonophagocytic Assay.
Month 12
GMC of Serotype-specific IgG at Month 12
Time Frame: Month 12
Serotype-specific IgG GMC (estimated) and GMC ratios with 95% CIs were calculated using a constrained longitudinal data analysis (cLDA) model utilizing data from both vaccination groups. Per the statistical analysis plan, the only CIs calculated were the between-group CIs (for the GMC ratios); within-group CIs were not calculated. IgG for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) will be determined using an electrochemiluminescence assay.
Month 12
GMFR in Serotype-specific OPA Day 1 to Month 12
Time Frame: Day 1 (Baseline) and Month 12
Activity for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) was determined using a Multiplexed Opsonophagocytic Assay. Geometric mean fold rise (GMFR) is the geometric mean of fold rise from baseline to postvaccination.
Day 1 (Baseline) and Month 12
GMFR in Serotype-specific IgG Day 1 to Month 12
Time Frame: Day 1 (Baseline) and Month 12
Activity for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) was determined using an electrochemiluminescence assay. GMFR is the geometric mean of fold rise from baseline to postvaccination.
Day 1 (Baseline) and Month 12
Percentage of Participants With ≥4-Fold Rise in Serotype-specific OPA Titer Day 1 to Month 12
Time Frame: Day 1 (Baseline) and Month 12
Activity for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) will be determined using a Multiplexed Opsonophagocytic Assay. The percentage of participants who had ≥4-fold rise in OPA titers were calculated from baseline to postvaccination.
Day 1 (Baseline) and Month 12
Percentage of Participants With ≥4-Fold Rise in Serotype-specific IgG Concentration Day 1 to Month 12
Time Frame: Day 1 (Baseline) and Month 12
Activity for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) will be determined using an electrochemiluminescence assay. The percentage of participants who had ≥ 4-fold rise in IgG concentration are calculated from baseline to postvaccination.
Day 1 (Baseline) and Month 12
GMFR in Serotype-specific OPA Day 1 to Month 13
Time Frame: Day 1 (Baseline) and Month 13
Activity for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) was determined using a Multiplexed Opsonophagocytic Assay. Geometric mean fold rise (GMFR) is the geometric mean of fold rise from baseline to postvaccination.
Day 1 (Baseline) and Month 13
GMFR in Serotype-specific IgG Day 1 to Month 13
Time Frame: Day 1 (Baseline) and Month 13
Activity for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) was determined using an electrochemiluminescence assay. GMFR is the geometric mean of fold rise from baseline to postvaccination.
Day 1 (Baseline) and Month 13
Percentage of Participants With ≥4-Fold Rise in Serotype-specific OPA Titer Day 1 to Month 13
Time Frame: Day 1 (Baseline) and Month 13
Activity for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) will be determined using a Multiplexed Opsonophagocytic Assay. The percentage of participants who had ≥4-fold rise in OPA titers were calculated from baseline to postvaccination.
Day 1 (Baseline) and Month 13
Percentage of Participants With ≥4-Fold Rise in Serotype-specific IgG Concentration Day 1 to Month 13
Time Frame: Day 1 (Baseline) and Month 13
Activity for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) will be determined using an electrochemiluminescence assay. The percentage of participants who had ≥ 4-fold rise in IgG concentration are calculated from baseline to postvaccination.
Day 1 (Baseline) and Month 13
GMFR in Serotype-specific OPA Month 12 to Month 13
Time Frame: Month 12 (Baseline) and Month 13
Activity for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) was determined using a Multiplexed Opsonophagocytic Assay. Geometric mean fold rise (GMFR) is the geometric mean of fold rise from baseline to postvaccination.
Month 12 (Baseline) and Month 13
GMFR in Serotype-specific IgG Month 12 to Month 13
Time Frame: Month 12 (Baseline) and Month 13
Activity for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) was determined using an electrochemiluminescence assay. GMFR is the geometric mean of fold rise from baseline to postvaccination.
Month 12 (Baseline) and Month 13
Percentage of Participants With ≥4-Fold Rise in Serotype-specific OPA Titer Month 12 to Month 13
Time Frame: Month 12 (Baseline) and Month 13
Activity for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) will be determined using a Multiplexed Opsonophagocytic Assay. The percentage of participants who had ≥4-fold rise in OPA titers were calculated from baseline to postvaccination.
Month 12 (Baseline) and Month 13
Percentage of Participants With ≥4-Fold Rise in Serotype-specific IgG Concentration Month 12 to Month 13
Time Frame: Month 12 (Baseline) and Month 13
Activity for the serotypes contained in Prevnar 13™ and V114 (13 serotypes shared with Prevnar 13™ and 2 serotypes unique to V114) will be determined using an electrochemiluminescence assay. The percentage of participants who had ≥ 4-fold rise in IgG concentration are calculated from baseline to postvaccination.
Month 12 (Baseline) and Month 13

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Merck Sharp & Dohme LLC

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
June 22, 2018

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 23, 2019

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 23, 2019

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 22, 2018

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 22, 2018

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 29, 2018

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
November 2, 2021

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 25, 2021

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2021

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • V114-016 (Other Identifier: Merck Protocol Number)
  • 2017-004024-30 (EudraCT Number)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Yes

IPD Plan Description

http://engagezone.msd.com/doc/ProcedureAccessClinicalTrialData.pdf

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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