A Post-marketing Observational Study of Tasfygo in Participants With Unresectable Biliary Tract Cancer With Fibroblast Growth Factor Receptor 2 (FGFR2) Fusion Gene Positivity Who Progressed After Chemotherapy
Post-marketing Observational Study of Tasfygo Tablet 35 mg to Evaluate the Safety of Tasfygo in Patients With Unresectable Biliary Tract Cancer With FGFR2 Fusion Gene Positivity Who Progressed After Chemotherapy
1 other identifier
observational
60
1 country
1
Brief Summary
The primary purpose of this study is to investigate the safety of Tasfygo.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for all trials
Started Jul 2025
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
January 21, 2025
CompletedFirst Posted
Study publicly available on registry
January 27, 2025
CompletedStudy Start
First participant enrolled
July 10, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 20, 2032
ExpectedStudy Completion
Last participant's last visit for all outcomes
November 20, 2032
February 27, 2026
February 1, 2026
7.4 years
January 21, 2025
February 25, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Number of Participants With Adverse Drug Reactions
Up to 1 year
Secondary Outcomes (1)
Percentage of Participants With Best Overall Response (BOR) Based on Physician's Assessment
Up to 1 year
Study Arms (1)
Tasfygo tablet 35 milligrams (mg)
Interventions
Eligibility Criteria
Participants with FGFR2 fusion positive unresectable biliary tract cancer with prior chemotherapy who will receive Tasfygo tablet as per daily practice and package insert will be enrolled.
You may qualify if:
- \. Participants with unresectable biliary tract cancer with FGFR2 fusion gene positivity who are naïve to Tasfygo tablet and progressed after chemotherapy.
You may not qualify if:
- Not applicable.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Eisai Co., Ltd.lead
Study Sites (1)
#Eisai Trial Site 1
Tokyo, Japan
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- INDUSTRY
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 21, 2025
First Posted
January 27, 2025
Study Start
July 10, 2025
Primary Completion (Estimated)
November 20, 2032
Study Completion (Estimated)
November 20, 2032
Last Updated
February 27, 2026
Record last verified: 2026-02
Data Sharing
- IPD Sharing
- Will share
Eisai's data sharing commitment and further information on how to request data can be found on our website http://eisaiclinicaltrials.com/.