Purpose

This study will have 2 parts: Pharmacokinetics (PK) Lead-in Phase and the Treatment Phase. The primary objective of the PK Lead-in Phase is to evaluate the steady state PK and confirm the dose of sofosbuvir/velpatasvir (SOF/VEL) fixed-dose combination (FDC) in pediatric participants with chronic hepatitis C virus (HCV) infection. The primary objective of the Treatment Phase is to evaluate the safety and tolerability of SOF/VEL for 12 weeks in pediatric participants with chronic HCV.

Condition

Eligibility

Eligible Ages
Between 3 Years and 17 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Chronic HCV-infected, treatment-naive and treatment-experienced adolescent and pediatric individuals aged 3 to < 18 as determined at Day 1. Note: Other protocol defined Inclusion/

Exclusion Criteria

may apply.

Study Design

Phase
Phase 2
Study Type
Interventional
Allocation
Non-Randomized
Intervention Model
Parallel Assignment
Primary Purpose
Treatment
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
12 to < 18 Years Old
PK Lead-in Phase: Sofosbuvir/Velpatasvir (SOF/VEL) 400/100 mg once daily for 7 days. Participants who complete the PK lead-in phase, continue into the treatment phase with no interruption of study drug administration and additional participants will be enrolled into the treatment phase once the appropriateness of the dose is confirmed by PK results from the PK lead-in phase. Treatment Phase: SOF/VEL 400/100 mg once daily for 12 weeks.
  • Drug: SOF/VEL
    SOF/VEL fixed-dose combination (FDC) 400/100 mg tablets or SOF/VEL FDC 200/50 mg tablets (based on swallowability assessment)
    Other names:
    • Epclusa®
    • GS-7977/GS-5816
Experimental
6 to < 12 Years Old
PK Lead-in Phase: SOF/VEL 200/50 mg once daily for 7 days. Participants who complete the PK lead-in phase, continue into the treatment phase with no interruption of study drug administration and additional participants will be enrolled into the treatment phase once the appropriateness of the dose is confirmed by PK results from the PK lead-in phase. Treatment Phase: SOF/VEL 200/50 mg once daily for 12 weeks.
  • Drug: SOF/VEL
    SOF/VEL fixed-dose combination (FDC) 400/100 mg tablets or SOF/VEL FDC 200/50 mg tablets (based on swallowability assessment)
    Other names:
    • Epclusa®
    • GS-7977/GS-5816
Experimental
3 to < 6 Years Old
PK Lead-in Phase: SOF/VEL 200/50 mg once daily for 7 days for participants who weigh ≥ 17 kg. SOF/VEL 150/37.5 mg once daily for 7 days for participants who weigh < 17 kg. Participants who complete the PK lead-in phase, continue into the treatment phase with no interruption of study drug administration and additional participants will be enrolled into the treatment phase once the appropriateness of the dose is confirmed by PK results from the PK lead-in phase. Treatment Phase: SOF/VEL 200/50 mg once daily for 12 weeks for participants who weigh ≥ 17 kg. SOF/VEL 150/37.5 mg once daily for 12 weeks for participants who weigh < 17 kg.
  • Drug: SOF/VEL
    SOF/VEL FDC 200/50 mg oral granules
    Other names:
    • Epclusa®
    • GS-7977/GS-5816

More Details

Status
Completed
Sponsor
Gilead Sciences

Study Contact

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.