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Trial to Evaluate the Safety and Immunogenicity of 3 Lots of 20-valent Pneumococcal Conjugate Vaccine in Pneumococcal Vaccine-Naïve Adults

Phase 3
Completed
Conditions
Pneumococcal Disease
Interventions
Biological: 13vPnC
Biological: 20vPnC
Registration Number
NCT03828617
Lead Sponsor
Pfizer
Brief Summary

This is a Phase 3, randomized, double-blind study with a 4-arm parallel design. Adults 18 through 49 years of age with no history of pneumococcal vaccination will be randomized in a 2:2:2:1 ratio to receive a single dose of: 20vPnC Lot 1; 20vPnC Lot 2; 20vPnC Lot 3; or 13vPnC.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
All
Target Recruitment
1710
Inclusion Criteria
  1. Male or female adults ≥18 and <50 years of age.
  2. Adults determined by clinical assessment, including medical history and clinical judgment, to be eligible for the study, including adults with preexisting stable disease, defined as disease not requiring significant change in therapy in the previous 6 weeks or hospitalization for worsening disease within 12 weeks before receipt of investigational product.
  3. Female subject of childbearing potential or male subject who is able to father children, and willing to use a highly effective method of contraception as outlined in this protocol for at least 28 days after the dose of investigational product; or female subject not of childbearing potential or male subject not able to father children.
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Exclusion Criteria
  1. Previous vaccination with any licensed or investigational pneumococcal vaccine, or planned receipt through study participation.
  2. Serious chronic disorder including metastatic malignancy, severe chronic obstructive pulmonary disease (COPD) requiring supplemental oxygen, end-stage renal disease with or without dialysis, clinically unstable cardiac disease, or any other disorder that, in the investigator's opinion, excludes the subject from participating in the study.
  3. History of microbiologically proven invasive disease caused by S pneumoniae.
  4. Pregnant female subjects or breastfeeding female subjects (known or suspected).
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Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
13vPnC13vPnC13vPnC
20vPnC Lot 220vPnC20vPnC Lot 2
20vPnC Lot 120vPnC20vPnC Lot 1
20vPnC Lot 320vPnC20vPnC Lot 3
Primary Outcome Measures
NameTimeMethod
Serotype-specific Pneumococcal Opsonophagocytic Activity (OPA) Geometric Mean Titers (GMTs) at 1 Month After Vaccination1 month after vaccination

OPA titers were determined for serotypes: 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, 23F, 8, 10A, 11A, 12F, 15B, 22F and 33F. OPA titer was expressed as reciprocal of the highest serum dilution. OPA GMTs and 2-sided 95% CIs were calculated. Data for this outcome measure were planned to be analyzed for the 20vPnC vaccine groups (20vPnC Lots 1, 2 and 3) only.

Percentage of Participants With Local Reactions Within 10 Days After VaccinationWithin 10 days after vaccination

Local reactions were recorded using an electronic diary. Local reactions included redness, swelling and pain at the injection site. Redness and swelling were measured and recorded in measuring device units. 1 measuring device unit =0.5 centimeter (cm). Redness and swelling were graded as mild (greater than \[\>\] 2.0 to 5.0 cm), moderate (\>5.0 to 10.0 cm) and severe (\>10.0 cm). Pain at injection site was graded as mild (did not interfere with activity), moderate (interfered with activity), and severe (prevented daily activity). Data for this outcome measure was planned to be analyzed for the pooled 20vPnC vaccine groups (20vPnC Lots 1, 2 and 3) and 13vPnC group.

Percentage of Participants With Any Serious Adverse Events (SAEs) Within 6 Months After VaccinationWithin 6 month after vaccination

An SAE was any untoward medical occurrence at any dose that results in death; is life-threatening (immediate risk of death); requires inpatient hospitalization or prolongation of existing hospitalization; results in persistent or significant disability/incapacity (substantial disruption of the ability to conduct normal life functions); results in congenital anomaly/birth defect or that is considered to be an important medical event. Data for this outcome measure was planned to be analyzed for the pooled 20vPnC vaccine groups (20vPnC Lots 1, 2 and 3) and 13vPnC group.

Percentage of Participants With Systemic Events Within 7 Days After VaccinationWithin 7 days after vaccination

Systemic events fever, fatigue, headache, muscle pain, joint pain were recorded by using an electronic diary. Fever was defined as greater than or equal to (\>=) 38.0 degree Celsius (C) and categorized to \>=38.0 to 38.4 degree C, \>38.4 to 38.9 degree C, \>38.9 to 40.0 degree C and \>40.0 degree C. Fatigue, headache, muscle pain and joint pain were graded as mild (did not interfere with activity), moderate (some interference with activity) and severe (prevented daily routine activity). Data for this outcome measure was planned to be analyzed for the pooled 20vPnC vaccine groups (20vPnC Lots 1, 2 and 3) and 13vPnC group.

Percentage of Participants With Any Adverse Events (AEs) Within 1 Month After VaccinationWithin 1 month after vaccination

An AE was any untoward medical occurrence in study participants who received study vaccine without regard to possibility of causal relationship. Data for this outcome measure was planned to be analyzed for the pooled 20vPnC vaccine groups (20vPnC Lots 1, 2 and 3) and 13vPnC group.

Percentage of Participants With Any Newly Diagnosed Chronic Medical Conditions (NDCMCs) Within 6 Months After VaccinationWithin 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. Data for this outcome measure was planned to be analyzed for the pooled 20vPnC vaccine groups (20vPnC Lots 1, 2 and 3) and 13vPnC group.

Secondary Outcome Measures
NameTimeMethod
Serotype-specific Pneumococcal Opsonophagocytic Activity (OPA) Geometric Mean Fold Rise (GMFR) From Before Vaccination to 1 Month After VaccinationBefore vaccination to 1 month after vaccination

Fold rises are the ratios of the 1 month after vaccination to before vaccination OPA titers. OPA GMFRs from before to 1 month after vaccination were calculated along with corresponding 2-sided 95% CIs for pneumococcal serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, 23F, 8, 10A, 11A, 12F, 15B, 22F and 33F. Data for this outcome measure was planned to be analyzed for the 20vPnC vaccine groups (20vPnC Lots 1, 2 and 3) only.

Percentage of Participants With Greater Than or Equal to (>=) 4 -Fold Rise in Serotype-specific Pneumococcal Opsonophagocytic Activity (OPA) Titers From Before Vaccination to 1 Month After VaccinationBefore vaccination to 1 month after vaccination

Percentage of participants with a \>=4-fold rise in serotype-specific pneumococcal OPA titers from before vaccination to 1 month after vaccination along with corresponding 2-sided 95% CIs were calculated for pneumococcal serotypes 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, 23F, 8, 10A, 11A, 12F, 15B, 22F and 33F. Data for this outcome measure was planned to be analyzed for the 20vPnC vaccine groups (20vPnC Lots 1, 2 and 3) only.

Percentage of Participants With Serotype-specific Opsonophagocytic Activity (OPA) Titers Greater Than or Equal to Lower Limit of Quantitation (>= LLOQ) at 1 Month After Vaccination1 month after vaccination

The percentage of participants with OPA titers \>=LLOQ were calculated along with corresponding 2-sided 95% CIs for pneumococcal serotypes 1, 3, 4, 5, 6A, 6B, 7F, 8, 9V, 10A, 11A, 12F, 14, 15B, 18C, 19A, 19F, 22F, 23F, and 33F. Data for this outcome measure was planned to be analyzed for the 20vPnC vaccine groups (20vPnC Lots 1, 2 and 3) only.

Trial Locations

Locations (19)

Anaheim Clinical Trials, LLC

🇺🇸

Anaheim, California, United States

Accel Research Sites - Clinical Research Unit

🇺🇸

DeLand, Florida, United States

Meridian Clinical Research, LLC

🇺🇸

Dakota Dunes, South Dakota, United States

Clinical Research Atlanta

🇺🇸

Stockbridge, Georgia, United States

PMG Research of Wilmington, LLC

🇺🇸

Wilmington, North Carolina, United States

Rochester Clinical Research, Inc.

🇺🇸

Rochester, New York, United States

Omega Medical Research

🇺🇸

Warwick, Rhode Island, United States

M3 Wake Research, Inc.

🇺🇸

Raleigh, North Carolina, United States

Kaiser Permanente San Jose

🇺🇸

San Jose, California, United States

Kentucky Pediatric/Adult Research

🇺🇸

Bardstown, Kentucky, United States

Heartland Research Associates, LLC

🇺🇸

Wichita, Kansas, United States

Research Centers of America, LLC

🇺🇸

Hollywood, Florida, United States

Kaiser Permanente Santa Clara

🇺🇸

Santa Clara, California, United States

Kaiser Permanente Sacramento

🇺🇸

Sacramento, California, United States

Kaiser Permanente South Sacramento

🇺🇸

Sacramento, California, 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

East West Medical Research Institute

🇺🇸

Honolulu, Hawaii, United States

Benchmark Research

🇺🇸

Austin, Texas, United States

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