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Virology Follow up Study in Subjects Previously Treated With Telaprevir

EXTEND: A 3-Year, Virology Follow up Study in Subjects Previously Treated With Telaprevir in Select Clinical Studies

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT00916474
Enrollment
408
Registered
2009-06-09
Start date
2009-06-30
Completion date
2013-12-31
Last updated
2014-02-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hepatitis C

Brief summary

Observational follow-up study to assess long-term response to telaprevir and to evaluate changes in Hepatitis C virus over time.

Interventions

DRUGtelaprevir

Sponsors

Tibotec Pharmaceutical Limited
CollaboratorINDUSTRY
Vertex Pharmaceuticals Incorporated
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

* Received at least 1 dose of telaprevir-based treatment in 1 of the following clinical studies: VX05-950-104, VX05-950-104EU, VX06-950-106, VX06-950-107, VX07-950-108, VX08-950-111, or VX-950-TiDP24-C216 * Have baseline HCV viral sequencing data available from previous telaprevir study

Exclusion criteria

* May not be currently participating in the antiviral follow-up period of an ongoing telaprevir trial. (Note: Subjects who have completed the required antiviral follow-up period but are still participating in the collection of patient-reported outcomes data for their previous telaprevir study may be eligible.) * For subjects participating in ongoing studies at the time of enrollment, have more than 90 elapsed days between the database lock or unblinding in the previous telaprevir study and Day 1 in this study

Design outcomes

Primary

MeasureTime frame
Proportion of subjects who maintain undetectable HCV RNA over time after achieving an SVR following telaprevir-based treatment3 years
Change in HCV variants with decreased sensitivity to telaprevir over time in subjects failing to achieve an SVR following telaprevir-based treatment3 years

Secondary

MeasureTime frame
Change in HCV variants with decreased sensitivity to telaprevir over time in subjects with late relapse3 years

Countries

Canada, France, Germany, Puerto Rico, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026