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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

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ClinicalTrials.gov Identifier: NCT03828617
Recruitment Status : Completed
First Posted : February 4, 2019
Results First Posted : November 4, 2020
Last Update Posted : November 23, 2020
Sponsor:
Information provided by (Responsible Party):
Pfizer

Study Description
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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.

Condition or disease Intervention/treatment Phase
Pneumococcal Disease Biological: 20vPnC Biological: 13vPnC Phase 3

Study Design
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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 1710 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double (Participant, Investigator)
Primary Purpose: Prevention
Official Title: A PHASE 3, RANDOMIZED, DOUBLE-BLIND TRIAL TO EVALUATE THE SAFETY AND IMMUNOGENICITY OF 3 LOTS OF 20-VALENT PNEUMOCOCCAL CONJUGATE VACCINE IN PNEUMOCOCCAL VACCINE-NAÏVE ADULTS 18 THROUGH 49 YEARS OF AGE
Actual Study Start Date : February 14, 2019
Actual Primary Completion Date : October 9, 2019
Actual Study Completion Date : October 9, 2019
Arms and Interventions
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Arm Intervention/treatment
Experimental: 20vPnC Lot 1
20vPnC Lot 1
 Biological: 20vPnC
20vPnC
Experimental: 20vPnC Lot 2
20vPnC Lot 2
 Biological: 20vPnC
20vPnC
Experimental: 20vPnC Lot 3
20vPnC Lot 3
 Biological: 20vPnC
20vPnC
Active Comparator: 13vPnC
13vPnC
 Biological: 13vPnC
Pneumococcal conjugate vaccine


Outcome Measures
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Primary Outcome Measures :
  1. Percentage of Participants With Local Reactions Within 10 Days After Vaccination [ Time Frame: Within 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.

  2. Percentage of Participants With Systemic Events Within 7 Days After Vaccination [ Time Frame: Within 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.

  3. Percentage of Participants With Any Adverse Events (AEs) Within 1 Month After Vaccination [ Time Frame: Within 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.

  4. Percentage of Participants With Any Serious Adverse Events (SAEs) Within 6 Months After Vaccination [ Time Frame: Within 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.

  5. Percentage of Participants With Any Newly Diagnosed Chronic Medical Conditions (NDCMCs) Within 6 Months After Vaccination [ Time Frame: Within 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.

  6. Serotype-specific Pneumococcal Opsonophagocytic Activity (OPA) Geometric Mean Titers (GMTs) at 1 Month After Vaccination [ Time Frame: 1 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.


Secondary Outcome Measures :
  1. Serotype-specific Pneumococcal Opsonophagocytic Activity (OPA) Geometric Mean Fold Rise (GMFR) From Before Vaccination to 1 Month After Vaccination [ Time Frame: Before 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.

  2. 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 Vaccination [ Time Frame: Before 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.

  3. Percentage of Participants With Serotype-specific Opsonophagocytic Activity (OPA) Titers Greater Than or Equal to Lower Limit of Quantitation (>= LLOQ) at 1 Month After Vaccination [ Time Frame: 1 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.


Eligibility Criteria
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Ages Eligible for Study:   18 Years to 49 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

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.

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).
Contacts and Locations
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Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03828617


Locations
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Sponsors and Collaborators
Pfizer
Investigators
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Study Director: Pfizer CT.gov Call Center Pfizer
  Study Documents (Full-Text)

Documents provided by Pfizer:
Study Protocol  [PDF] October 22, 2018
Statistical Analysis Plan  [PDF] February 11, 2020

More Information
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Additional Information:

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Responsible Party: Pfizer
ClinicalTrials.gov Identifier: NCT03828617    
Other Study ID Numbers: B7471008
First Posted: February 4, 2019    Key Record Dates
Results First Posted: November 4, 2020
Last Update Posted: November 23, 2020
Last Verified: November 2020
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description: Pfizer will provide access to individual de-identified participant data and related study documents (e.g. protocol, Statistical Analysis Plan (SAP), Clinical Study Report (CSR)) upon request from qualified researchers, and subject to certain criteria, conditions, and exceptions. Further details on Pfizer's data sharing criteria and process for requesting access can be found at: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests.
URL: https://www.pfizer.com/science/clinical_trials/trial_data_and_results/data_requests

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Pneumococcal Infections
Streptococcal Infections
Gram-Positive Bacterial Infections
Bacterial Infections