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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04642079
Other study ID # B7471014
Secondary ID 2019-003308-11
Status Completed
Phase Phase 3
First received
Last updated
Start date December 4, 2020
Est. completion date April 6, 2022

Study information

Verified date January 2024
Source Pfizer
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

This study is designed to evaluate the safety and immunogenicity of 20vPnC in healthy children 15 months through 17 years of age


Recruitment information / eligibility

Status Completed
Enrollment 839
Est. completion date April 6, 2022
Est. primary completion date April 6, 2022
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 15 Months to 17 Years
Eligibility Inclusion Criteria: - Male or female children =15 months to <18 years of age at the time of consent. - Healthy children determined by clinical assessment, including medical history and clinical judgment, to be eligible for the study. - For children <5 years of age, written documentation of receipt of at least 3 doses of 13vPnC. The last dose of 13vPnC must have been administered >2 months before enrolment into the study Exclusion Criteria: - History of severe adverse reaction associated with a vaccine and/or severe allergic reaction (eg, anaphylaxis) - Major known congenital malformation or serious chronic disorder - Other acute or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with study participation or investigational product administration or may interfere with the interpretation of study results - Previous vaccination with any investigational pneumococcal vaccine or with PPSV23, or planned receipt through study participation - Cohorts 3 and 4: Pregnant or breastfeeding female participants

Study Design


Related Conditions & MeSH terms


Intervention

Biological:
20vPnC
20-valent pneumococcal conjugate vaccine

Locations

Country Name City State
United States MedPharmic's, LLC Albuquerque New Mexico
United States Benchmark Research Austin Texas
United States Kentucky Pediatric/ Adult Research Bardstown Kentucky
United States Meridian Clinical Research, LLC Binghamton New York
United States Tekton Research, Inc Chamblee Georgia
United States Pediatric Associates of Charlottesville, PLC (Private Pediatric Practice) Charlottesville Virginia
United States Pediatric Research of Charlottesville, LLC Charlottesville Virginia
United States Dayton Clinical Research Dayton Ohio
United States Ohio Pediatric Research Association Inc. Dayton Ohio
United States PriMed Clinical Research Dayton Ohio
United States Allegheny Health and Wellness Pavilion Erie Pennsylvania
United States Northwest Arkansas Pediatrics Fayetteville Arkansas
United States Lockman & Lubell Pediatric Associates Fort Washington Pennsylvania
United States University of Texas Medical Branch Galveston Texas
United States Velocity Clinical Research, Grand Island Grand Island Nebraska
United States MedPharmics, LLC Gulfport Mississippi
United States Wr-Crcn, Llc Henderson Nevada
United States Clinical Research Prime Idaho Falls Idaho
United States The Children's Clinic Jonesboro Arkansas
United States The Children's Clinic of Jonesboro, P.A. Jonesboro Arkansas
United States Alliance for Multispecialty Research, LLC Layton Utah
United States Michael W. Simon, M.D., PSC Lexington Kentucky
United States Midwest Children's Health Research Institute Lincoln Nebraska
United States Midwest Children's Health Research Institute Lincoln Nebraska
United States Bio-Medical Research, LLC Miami Florida
United States Pharmax Research Clinic, Inc. Miami Florida
United States Wasatch Pediatrics, Cottonwood Office Murray Utah
United States Alliance for Multispecialty Research, LLC Newton Kansas
United States Velocity Clinical Research, Norfolk Norfolk Nebraska
United States Palmetto Pediatrics, PA North Charleston South Carolina
United States Meridian Clinical Research, LLC Omaha Nebraska
United States Velocity Clinical Research, Sioux City Omaha Nebraska
United States Pediatric Care Provo Utah
United States J. Lewis Research, Inc. / Foothill Family Clinic Salt Lake City Utah
United States J. Lewis Research, Inc./ Foothill Family Clinic South Salt Lake City Utah
United States JBR Clinical Research Salt Lake City Utah
United States Tekton Research, Inc San Antonio Texas
United States California Research Foundation San Diego California
United States Meridian Clinical Research, LLC Sioux City Iowa
United States CopperView Medical Center South Jordan Utah
United States J. Lewis Research, Inc. / Jordan River Family Medicine South Jordan Utah
United States Wee Care Pediatrics Syracuse Utah
United States Children's Health Center Tampa Florida

Sponsors (1)

Lead Sponsor Collaborator
Pfizer

Country where clinical trial is conducted

United States, 

Outcome

Type Measure Description Time frame Safety issue
Primary Percentage of Participants Reporting Prompted Local Reactions Within 7 Days After Vaccination Local reactions included redness, swelling and, pain at the injection site, recorded by parent's/legal guardians of participants in an electronic diary (e-diary). Redness and swelling were measured and recorded in measuring device units. One measuring device unit =0.5 centimeter (cm). Redness and swelling were graded as mild: > 0.0 to 2.0 cm, moderate: >2.0 to 7.0 cm and severe: >7.0 cm. Pain at the injection site was graded as mild: hurt if gently touched (cohort 1) and did not interfere with activity (cohort 2-4); moderate: hurt if gently touched with crying (cohort 1) and interfered with daily activity (cohort 2-4) and; severe: limited limb movement (cohort 1) and prevented daily activity (cohort 2-4). 95 percent (%) confidence interval (CI) was based on Clopper and Pearson method. Within 7 days after vaccination on Day 1
Primary Percentage of Participants Reporting Prompted Systemic Events Within 7 Days After Vaccination: Cohort 1 Systemic events for Cohort 1 included fever, decreased appetite, drowsiness/increased sleep and irritability, recorded by parents/legal guardians of participant's using an e-diary. Fever was defined as temperature >=38.0 degrees Celsius (C) and categorized as >=38.0 to 38.4 degrees C, >38.4 to 38.9 degrees C, >38.9 to 40.0 degrees C and >40.0-degrees C. Decreased appetite was graded as mild (decreased interest in eating), moderate (decreased oral intake) and severe (refusal to feed). Drowsiness was graded as mild (increased or prolonged sleeping bouts), moderate (slightly subdued, interfered with daily activity) and severe (disabling, not interested in usual daily activity). Irritability: graded as mild (easily consolable), moderate (required increased attention) and severe (inconsolable, crying could not be comforted). 95% CI was based on Clopper and Pearson method. Within 7 days after vaccination on Day 1
Primary Percentage of Participants Reporting Prompted Systemic Events Within 7 Days After Vaccination: Cohorts 2, 3 and 4 Systemic events for Cohort 2-4 included fever, fatigue, headache, muscle pain and joint pain, recorded by parents/legal guardians of participant's using an e-diary. Fever was defined as temperature >=38.0 degrees C and categorized as >=38.0 to 38.4 degrees C, >38.4 to 38.9 degrees C, >38.9 to 40.0 degrees C and >40.0 degrees C. Fatigue, headache, muscle pain and joint pain were graded as mild (no interference with activity), moderate (some interference with activity) and severe (prevents daily routine activity). 95% CI was based on Clopper and Pearson method. Within 7 days after vaccination on Day 1
Primary Percentage of Participants Reporting Adverse Events (AEs) up to 1 Month After Vaccination An AE was any untoward medical occurrence in a participant, temporally associated with the use of study treatment, whether or not considered related to the study treatment. 95% CI was based on the Clopper and Pearson method. Only AEs collected by non-systematic assessment (i.e. excluding local reactions and systemic events) were reported in this outcome measure. From vaccination (on Day 1) up to 1 month after vaccination
Primary Percentage of Participants Reporting Serious Adverse Events (SAEs) up to 6 Months After Vaccination An SAE was any untoward medical occurrence that occurred, at any dose: resulted in death; required inpatient hospitalization or prolongation of existing hospitalization; was life-threatening; resulted in persistent or significant disability/ incapacity; was a congenital anomaly/birth defect and other important medical events. 95% CI was based on the Clopper and Pearson method. From vaccination (on Day 1) up to 6 months after vaccination
Primary Percentage of Participants Reporting Newly Diagnosed Chronic Medical Conditions (NDCMCs) up to 6 Months After Vaccination An NDCMC was defined as a disease or medical condition, not previously identified, that was expected to be persistent or was otherwise long-lasting in its effects. 95% CI was based on the Clopper and Pearson method. From vaccination (on Day 1) up to 6 months after vaccination
Primary Geometric Mean Fold Rises (GMFRs) of Pneumococcal Serotype-Specific Immunoglobulin G (IgG) Concentrations for the 7 Additional Serotypes From Before to 1 Month After 20vPnC Vaccination: Cohort 1 and 2 Pneumococcal serotype-specific IgG concentrations were measured from serum samples for the 7 additional 20vPnC serotypes: 8, 10A, 11A, 12F, 15B, 22F and 33F. GMFR = geometric mean of fold rise from before vaccination on Day 1 to 1 month after vaccination with 20vPnC. GMFRs and corresponding 2-sided 95% CIs were calculated by exponentiating the mean logarithm of fold rises and the corresponding 2-sided 95% CIs (based on Student's t distribution). Superiority of IgG concentration 1 month after 20vPnC to before vaccination for each serotype was demonstrated if the 95% lower CI of GMFR was >1. Before vaccination on Day 1 to 1 month after vaccination
Primary GMFRs of Pneumococcal Serotype-Specific Opsonophagocytic Activity (OPA) Titers for the 7 Additional Serotypes From Before to 1 Month After 20vPnC Vaccination: Cohort 3 and 4 Pneumococcal serotype-specific OPA titers were measured from serum samples for 7 the additional 20vPnC serotypes: 8, 10A, 11A, 12F, 15B, 22F and 33F. GMFR = geometric mean of fold rise from before vaccination on Day 1 to 1 month after vaccination with 20vPnC. GMFRs and the corresponding 2-sided 95% CIs were calculated by exponentiating the mean logarithm of fold rises and the corresponding 2-sided 95% CIs (based on the Student's t distribution). Superiority of OPA titers 1 month after 20vPnC to before vaccination for each serotype was demonstrated if the 95% lower CI of the GMFR was >1. Before vaccination on Day 1 to 1 month after vaccination
Secondary Percentage of Participants With Predefined Levels of Pneumococcal Serotype-Specific IgG Concentrations for the 7 Additional Serotypes at 1 Month After Vaccination in Cohort 1 Only Pneumococcal serotype-specific IgG concentrations were measured from serum samples for the 7 additional 20vPnC serotypes: 8, 10A, 11A, 12F, 15B, 22F and 33F. Percentage of participants with predefined level (>=0.35 micrograms per milliliter) of IgG concentration for the 7 additional 20vPnC serotypes was presented. 2-sided 95% CI was based on Clopper and Pearson method. At 1 Month after vaccination on Day 1
Secondary Percentage of Participants With >=4-fold Rise in Pneumococcal Serotype-Specific OPA Titers for the 7 Additional Serotypes From Before to 1 Month After Vaccination: Cohorts 2, 3, and 4 Only Pneumococcal serotype-specific OPA titers were measured from serum samples for 7 additional 20vPnC serotypes: 8, 10A, 11A, 12F, 15B, 22F and 33F. Percentage of participants with >=4-fold rise in serotype-specific OPA titers from before vaccination to 1 month after vaccination with 20vPnC and the associated 2-sided 95% CI based on the Clopper and Pearson method was presented. OPA titers were measured in a randomized subset of samples in Cohort 2 for this outcome measure. Before vaccination on Day 1 to 1 month after vaccination
Secondary Geometric Mean Concentrations (GMCs) of Pneumococcal Serotype-Specific IgG for the 20vPnC Serotypes Before and 1 Month After Vaccination Pneumococcal serotype-specific IgG concentrations were measured for serum samples for 13vPnC serotypes: 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F; and 7 additional 20vPnC serotypes: 8, 10A, 11A, 12F, 15B, 22F and 33F. GMCs the corresponding 2-sided 95% CIs were calculated by exponentiating the mean logarithm of the concentrations and the corresponding 2-sided 95% CIs (based on the Student's t distribution). Before vaccination and 1 month after vaccination
Secondary GMFRs of Pneumococcal Serotype-Specific IgG Concentrations for the 13vPnC Serotypes From Before to 1 Month After Vaccination: Cohort 1 and 2 Pneumococcal serotype-specific IgG concentrations were measured from serum samples for 13vPnC serotypes: 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F. GMFR = geometric mean of fold rise from before vaccination on Day 1 to 1 month after vaccination with 20vPnC. GMFRs and the corresponding 2-sided 95% CIs were calculated by exponentiating the mean logarithm of the fold rises and the corresponding 2-sided 95% CIs (based on the Student's t distribution). Before vaccination on Day 1 to 1 month after vaccination
Secondary GMFRs of Pneumococcal Serotype-Specific IgG Concentrations for the 20vPnC Serotypes From Before to 1 Month After Vaccination: Cohort 3 and 4 Pneumococcal serotype-specific IgG concentrations were measured from serum samples for 13vPnC serotypes: 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F and 23F; and 7 additional 20vPnC serotypes: 8, 10A, 11A, 12F, 15B, 22F and 33F. GMFR = geometric mean of fold rise from before vaccination on Day 1 to 1 month after vaccination with 20vPnC. GMFRs and the corresponding 2-sided 95% CIs were calculated by exponentiating the mean logarithm of the fold rises and the corresponding 2-sided 95% CIs (based on the Student's t distribution). Before vaccination on Day 1 to 1 month after vaccination
Secondary Geometric Mean Titers (GMTs) of Pneumococcal Serotype-Specific OPA Titers for the 20vPnC Serotypes Before and 1 Month After Vaccination Pneumococcal serotype-specific OPA titers were measured from serum samples for 13vPnC serotypes: 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F; and 7 additional 20vPnC serotypes: 8, 10A, 11A, 12F, 15B, 22F and 33F. GMTs and 2-sided 95% CIs were calculated by exponentiating the mean logarithm of the titers and the corresponding 2-sided 95% CIs (based on the Student's t distribution). OPA titers were measured in a randomized subset of serum samples in Cohorts 1 and 2. OPA titers for the 13vPnC serotypes were measured in a randomized subset of serum samples in Cohorts 3 and 4. Before vaccination on Day 1 and 1 month after vaccination
Secondary GMFRs of Pneumococcal Serotype-Specific OPA Titers for the 20vPnC Serotypes From Before to 1 Month After Vaccination: Cohorts 1 and 2 Pneumococcal serotype-specific OPA titers were measured from serum samples for 13vPnC serotypes: 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F; and 7 additional 20vPnC serotypes: 8, 10A, 11A, 12F, 15B, 22F and 33F. GMFR = geometric mean of fold rise from before vaccination on Day 1 to 1 month after vaccination with 20vPnC. GMFRs and the corresponding 2-sided 95% CIs were calculated by exponentiating the mean logarithm of the fold rises and the corresponding 2-sided 95% CIs (based on the Student's t distribution). OPA titers measured in a randomized subset of serum samples in Cohorts 1 and 2 for this outcome measure. Before vaccination on Day 1 to 1 month after vaccination
Secondary GMFRs of Pneumococcal Serotype-Specific OPA Titers for the 13vPnC Serotypes From Before to 1 Month After Vaccination: Cohorts 3 and 4 Pneumococcal serotype-specific OPA titers were measured for 13vPnC serotypes: 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, and 23F. GMFR = geometric mean of fold rise from before vaccination on Day 1 to 1 month after vaccination with 20vPnC. GMFRs and the corresponding 2-sided 95% CIs were calculated by exponentiating the mean logarithm of the fold rises and the corresponding 2-sided 95% CIs (based on the Student's t distribution). OPA titers for the 13vPnC serotypes were measured in a randomized subset of serum samples in Cohorts 3 and 4. Before vaccination on Day 1 to 1 month after vaccination
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