NCT04875533

Brief Summary

A phase 3, randomized, double-blind trial to evaluate the safety and immunogenicity of a 20-valent pneumococcal conjugate vaccine in pneumococcal vaccine-naïve adults 60 years of age and older in Japan, Korea, and Taiwan

Trial Health

90
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,425

participants targeted

Target at P75+ for phase_3

Timeline
Completed

Started Jun 2021

Shorter than P25 for phase_3

Geographic Reach
3 countries

28 active sites

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 3, 2021

Completed
3 days until next milestone

First Posted

Study publicly available on registry

May 6, 2021

Completed
1 month until next milestone

Study Start

First participant enrolled

June 14, 2021

Completed
11 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 13, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 13, 2022

Completed
1.5 years until next milestone

Results Posted

Study results publicly available

November 28, 2023

Completed
Last Updated

November 5, 2024

Status Verified

October 1, 2024

Enrollment Period

11 months

First QC Date

May 3, 2021

Results QC Date

May 10, 2023

Last Update Submit

October 15, 2024

Conditions

Outcome Measures

Primary Outcomes (6)

  • Percentage of Participants With Prompted Local Reactions Within 10 Days After Vaccination 1 (20vPnC or 13vPnC)

    Reactions were collected in the e-diary including redness, swelling, and pain at the injection site. Exact 2-sided CI was calculated based on the Clopper and Pearson method. Redness and swelling were graded as mild (\>2.0 to 5.0 cm), moderate (\>5.0 to 10.0 cm), and severe (\>10.0 cm). Pain at the injection site was graded as mild (does not interfere with activity), moderate (interferes with activity), and severe (prevents daily activity).

    Within 10 days after 20vPnC in the 20vPnC/Saline group or 13vPnC in the 13vPnC/PPSV23 group

  • Percentage of Participants With Prompted Systemic Events Within 7 Days After Vaccination 1 (20vPnC or 13vPnC)

    Events were collected in the e-diary including fever, headache, fatigue, muscle pain, and joint pain. Exact 2-sided CI was calculated based on the Clopper and Pearson method. Fever was categorized as ≥38.0 degree Celsius (°C), ≥38.0°C to 38.4°C, \>38.4°C to 38.9°C, \>38.9°C to 40.0°C, and \>40.0°C. Fatigue, headache, muscle pain, and joint pain were graded as mild (does not interfere with activity), moderate (some interference with activity), and severe (prevents daily activity).

    Within 7 days after 20vPnC in the 20vPnC/Saline group or 13vPnC in the 13vPnC/PPSV23 group

  • Percentage of Participants With Adverse Events (AEs) Within 1 Month After Vaccination 1 (20vPnC or 13vPnC)

    An AE is any untoward medical occurrence in a clinical study participant, temporally associated with the use of study intervention, whether or not considered related to the study intervention.

    Within 1 month after 20vPnC in the 20vPnC/Saline group or 13vPnC in the 13vPnC/PPSV23 group

  • Percentage of Participants With Serious Adverse Events (SAEs) Within 1 Month After Vaccination 1 (20vPnC or 13vPnC)

    An SAE was any untoward medical occurrence at any dose that resulted in death; was life-threatening; required inpatient hospitalization or prolongation of existing hospitalization; resulted in persistent disability/incapacity; resulted in congenital anomaly/birth defect or that was considered to be an important medical event.

    Within 1 Month After Vaccination 1 (20vPnC or 13vPnC)

  • Pneumococcal Opsonophagocytic Activity (OPA) Geometric Mean Titers (GMTs) for 13-matched Serotypes at 1 Month After Vaccination 1 (20vPnC or 13vPnC)

    OPA titers were determined for the 13 matching pneumococcal serotypes: 1, 3, 4, 5, 6A, 6B, 7F, 9V, 14, 18C, 19A, 19F, 23F. GMTs and 2-sided CIs were calculated by exponentiating the Least Square (LS) means and the corresponding CIs based on analysis of log-transformed OPA titers using a regression model with vaccine group, sex, smoking status, age at vaccination in years (continuous), baseline log-transformed OPA titers, and country.

    1 month after 20vPnC in the 20vPnC/Saline group or 13vPnC in the 13vPnC/PPSV23 group

  • Pneumococcal OPA GMTs for 7 Additional Serotypes at 1 Month After Vaccination 1 (20vPnC) or 1 Month After Vaccination 2 (PPSV23)

    OPA titers were determined for serotypes: 8, 10A, 11A, 12F, 15B, 22F, and 33F. GMTs and 2-sided CIs were calculated by exponentiating the LS means and the corresponding CIs based on analysis of log-transformed OPA titers using a regression model with vaccine group, sex, smoking status, age at vaccination in years (continuous), baseline log-transformed OPA titers, and country.

    1 month after 20vPnC in the 20vPnC/Saline group or 1 month after PPSV23 in the 13vPnC/PPSV23 group.

Secondary Outcomes (8)

  • OPA Geometric Mean Fold Rise (GMFRs) For 13-matched Serotypes From Before To 1 Month After Vaccination 1 (20vPnC or 13vPnC)

    Before Vaccination 1 to 1 month after 20vPnC in the 20vPnC/saline group or 13vPnC in the 13vPnC/PPSV23 group.

  • OPA GMFRs for 7 Additional Serotypes From Before to 1 Month After Vaccination 1 (20vPnC) or From Before Vaccination 1 to 1 Month After Vaccination 2 (PPSV23)

    From before Vaccination 1 (20vPnC) to 1 month after Vaccination 1 (20vPnC) in the 20vPnC/Saline group or from before Vaccination 1 (13vPnC) to 1 month after Vaccination 2 (PPSV23) in the 13vPnC/PPSV23 group

  • Percentage of Participants With ≥4 Fold Rise for 13-matched Serotypes of OPA Titers From Before to 1 Month After Vaccination 1 (20vPnC or 13vPnC)

    From before Vaccination 1 to 1 month after 20vPnC in the 20vPnC/Saline group or 13vPnC in the 13vPnC/PPSV23 group

  • Percentage of Participants With ≥4 Fold Rise in 7 Additional Serotypes of OPA Titers From Before Vaccination 1 to 1 Month After Vaccination 1 (20vPnC) or From Before Vaccination 1 to 1 Month After Vaccination 2 (PPSV23)

    From before Vaccination 1 (20vPnC) to 1 month after Vaccination 1 (20vPnC) in the 20vPnC/Saline group or from before Vaccination 1 (13vPnC) to 1 month after Vaccination 2 (PPSV23) in the 13vPnC/PPSV23 group

  • Percentage of Participants With 13-matched Serotypes of OPA Titers ≥The Lower Limit of Quantitation (LLOQ) 1 Month After Vaccination 1 (20vPnC or 13vPnC)

    1 month after 20vPnC in the 20vPnC/saline group or 13vPnC in the 13vPnC/PPSV23 group

  • +3 more secondary outcomes

Study Arms (2)

20vPnC/Saline

EXPERIMENTAL

20vPnC and saline

Biological: 20vPnCOther: Saline

13vPnC/PPSV23

ACTIVE COMPARATOR

13vPnC and PPSV23

Biological: 13vPnCBiological: PPSV23

Interventions

20vPnCBIOLOGICAL

20vPnC

20vPnC/Saline
SalineOTHER

Saline

20vPnC/Saline
13vPnCBIOLOGICAL

Pneumococcal conjugate vaccine

13vPnC/PPSV23
PPSV23BIOLOGICAL

Pneumococcal polysaccharide vaccine

Also known as: Pneumovax 23
13vPnC/PPSV23

Eligibility Criteria

Age60 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Male or female participants 60 years of age and older at the time of consent.
  • 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 study intervention. (For adults 60 through 64 years of age to be enrolled at Japan sites: Participants must have a preexisting chronic stable disease with an elevated risk for pneumococcal disease.)

You may not qualify if:

  • History of microbiologically proven invasive disease caused by S pneumoniae.
  • Serious chronic disorder, including metastatic malignancy, severe COPD requiring supplemental oxygen, end-stage renal disease with or without dialysis, cirrhosis of the liver, clinically unstable cardiac disease, or any other disorder that, in the investigator's opinion, excludes the participant from participating in the study.
  • Previous vaccination with any licensed or investigational pneumococcal vaccine, or planned receipt through study participation.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (28)

Seishinkai Inoue Hospital

Itoshima, Fukuoka, 819-1104, Japan

Location

Women's Clinic LUNA NEXT STAGE

Naka-ku, Yokohama-Shi, Kanagawa, 231-0861, Japan

Location

Medical Corporation Heishinkai OPHAC Hospital

Osaka, Osaka, 532-0003, Japan

Location

Medical Corporation Heishinkai OCROM Clinic

Suita-shi, Osaka, 565-0853, Japan

Location

Nihonbashi Sakura Clinic

Chuo-ku, Tokyo, 103-0025, Japan

Location

Fukuwa Clinic

Chuo-ku, Tokyo, 104-0031, Japan

Location

P-one Clinic, Keikokai Medical Corporation

Hachioji-shi, Tokyo, 1920071, Japan

Location

Hillside Clinic Jingumae

Shibuya-ku, Tokyo, 1500001, Japan

Location

Medical Corporation Heishinkai ToCROM Clinic

Shinjuku-ku, Tokyo, 160-0008, Japan

Location

SOUSEIKAI PS Clinic

Fukuoka, 812-0025, Japan

Location

Korea University Ansan Hospital

Ansan-si, Gyeonggi-do, 15355, South Korea

Location

The Catholic University of Korea, St. Vincent's Hospital

Suwon, Gyeonggi-do, 16247, South Korea

Location

Ajou University Hospital

Suwon, Gyeonggi-do, 16499, South Korea

Location

Korea University Guro Hospital

Seoul, Seoul-teukbyeolsi [seoul], 08308, South Korea

Location

Kyungpook National University Hospital

Daegu, 41944, South Korea

Location

Inha University Hospital

Incheon, 22332, South Korea

Location

Severance Hospital, Yonsei University Health System

Seoul, 03722, South Korea

Location

Kangdong Sacred Heart Hospital

Seoul, 05355, South Korea

Location

Asan medical Center

Seoul, 05505, South Korea

Location

The Catholic University of Korea, Seoul St. Mary's Hospital

Seoul, 06591, South Korea

Location

Hallym University Kangnam Sacred Heart Hospital

Seoul, 07441, South Korea

Location

Ewha Womans University Mokdong Hospital

Seoul, 07985, South Korea

Location

Far Eastern Memorial Hospital

New Taipei City, 220, Taiwan

Location

Taipei Medical University Shuang Ho Hospital

New Taipei City, 23561, Taiwan

Location

China Medical University Hospital

Taichung, 40447, Taiwan

Location

National Cheng Kung University Hospital

Tainan, 704, Taiwan

Location

National Taiwan University Hospital

Taipei, 10002, Taiwan

Location

Linkou Chang Gung Memorial Hospital

Taoyuan, 333, Taiwan

Location

Related Publications (1)

  • Haranaka M, Young Song J, Huang KC, de Solom R, Yamaji M, McElwee K, Kline M, Aizawa M, Peng Y, Scully I, Kogawara O, Gruber WC, Scott DA, Watson W. A phase 3 randomized trial of the safety and immunogenicity of 20-valent pneumococcal conjugate vaccine in adults >/= 60 years of age in Japan, South Korea, and Taiwan. Vaccine. 2024 Feb 15;42(5):1071-1077. doi: 10.1016/j.vaccine.2024.01.004. Epub 2024 Jan 23.

Related Links

MeSH Terms

Conditions

Pneumococcal Infections

Interventions

Sodium Chloride23-valent pneumococcal capsular polysaccharide vaccine

Condition Hierarchy (Ancestors)

Streptococcal InfectionsGram-Positive Bacterial InfectionsBacterial InfectionsBacterial Infections and MycosesInfections

Intervention Hierarchy (Ancestors)

ChloridesHydrochloric AcidChlorine CompoundsInorganic ChemicalsSodium Compounds

Results Point of Contact

Title
Pfizer ClinicalTrials.gov Call Center
Organization
Pfizer Inc.

Study Officials

  • Pfizer CT.gov Call Center

    Pfizer

    STUDY DIRECTOR

Publication Agreements

PI is Sponsor Employee
No
Restriction Type
OTHER
Restrictive Agreement
Yes

Study Design

Study Type
interventional
Phase
phase 3
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 3, 2021

First Posted

May 6, 2021

Study Start

June 14, 2021

Primary Completion

May 13, 2022

Study Completion

May 13, 2022

Last Updated

November 5, 2024

Results First Posted

November 28, 2023

Record last verified: 2024-10

Data Sharing

IPD Sharing
Will share

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.

More information

Locations