Study to Evaluate the Immunogenicity, Safety, and Tolerability of a Tick-Borne Encephalitis (TBE) Vaccine in Healthy Japanese Participants 1 Year of Age and Older

NCT ID: NCT04648241

Last Updated: 2023-11-22

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

165 participants

Study Classification

INTERVENTIONAL

Study Start Date

2021-01-18

Study Completion Date

2022-02-21

Brief Summary

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The main purpose of this study is to provide safety and immunogenicity data in Japanese participants.

Detailed Description

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Conditions

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Tick-Borne Encephalitis

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

NONE

Study Groups

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≥16 Years Old

TBE vaccine 0.5 mL (intramuscular injection).

Group Type EXPERIMENTAL

TBE vaccine 0.5 mL

Intervention Type BIOLOGICAL

TBE vaccine 0.5 mL (intramuscular injection).

1 to <16 Years Old

TBE vaccine 0.25mL (intramuscular injection).

Group Type EXPERIMENTAL

TBE vaccine 0.25 mL

Intervention Type BIOLOGICAL

TBE vaccine 0.25 mL (intramuscular injection).

Interventions

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TBE vaccine 0.5 mL

TBE vaccine 0.5 mL (intramuscular injection).

Intervention Type BIOLOGICAL

TBE vaccine 0.25 mL

TBE vaccine 0.25 mL (intramuscular injection).

Intervention Type BIOLOGICAL

Eligibility Criteria

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Inclusion Criteria

* Japanese male or female participants ≥1 years old at Visit 1.
* Participants and/or a legally acceptable representative/parent/legal guardian are willing and able to comply with all scheduled visits, vaccination plan, and other study procedures including completion of the e-diary for 7 days for participants after each of 3 vaccinations.
* Participants and/or a legally acceptable representative/parent/legal guardian must be able to be contacted by telephone during study participation.
* Participants and/or a legally acceptable representative/parent/legal guardian are capable of giving signed informed consent.

Exclusion Criteria

* Major known congenital malformation or serious chronic disorder.
* Known history of TBEV infection.
* Known history of other flavivirus infection (eg, dengue fever, yellow fever, JEV, West Nile virus).
* Known history of infection with HIV, HCV, or HBV.
* Immunocompromised participants with known or suspected immunodeficiency.
* History of autoimmune disease or an active autoimmune disease requiring therapeutic intervention.
* Previous vaccination with any licensed or investigational TBE vaccine, or planned receipt of other flavivirus vaccines apart from JEV vaccine (eg, yellow fever, dengue fever) during the study. Administration of JEV vaccine is prohibited during participation.
Minimum Eligible Age

1 Year

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Pfizer

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Pfizer CT.gov Call Center

Role: STUDY_DIRECTOR

Pfizer

Locations

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Medical Co. LTA PS Clinic

Fukuoka, Fukuoka, Japan

Site Status

Azuma kodomo katei clinic

Ebetsu Shi, Hokkaido, Japan

Site Status

Watanabe Pediatric Allergy Clinic

Sapporo, Hokkaido, Japan

Site Status

Ohigesenseino Kodomo Clinic

Sapporo, Hokkaido, Japan

Site Status

SUZURAN Children's Clinic

Sapporo, Hokkaido, Japan

Site Status

Childrens clinic of Kose

Kofu, Yamanashi, Japan

Site Status

Countries

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Japan

References

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Yonekawa M, Watanabe T, Kogawara O, Yoshii C, Yamaji M, Aizawa M, Erber W, Ito S, Jug B, Koelch D, de Solom R, Lockhart SP. Phase 3 immunogenicity and safety study of a tick-borne encephalitis vaccine in healthy Japanese participants 1 year of age and older. Vaccine. 2024 May 10;42(13):3180-3189. doi: 10.1016/j.vaccine.2024.03.071. Epub 2024 Apr 12.

Reference Type DERIVED
PMID: 38614954 (View on PubMed)

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Related Links

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https://pmiform.com/clinical-trial-info-request?StudyID=B9371039

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Other Identifiers

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B9371039

Identifier Type: -

Identifier Source: org_study_id