ClinicalTrials.gg
CompletedNCT03318887Updated Oct 24, 2017

Impact of Sofosbuvir and Daclatasvir Concentration on HCV RNA

An observational study in Hepatitis C, sponsored by Hospices Civils de Lyon. Completed at 1 site in France. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2017-10-24.

Sponsored by Hospices Civils de Lyon · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
130
Ages
18 Years and older
Sex
All
01

Study summary

Sofosbuvir plus daclatasvir with or without ribavirin is one of the currently recommended treatment option for chronic hepatitis C. The objectives were to identify factors associated with sofosbuvir/daclatasvir plasma concentrations variations and to evaluate their impact on viral kinetics.

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Conditions studied

  • Hepatitis C

Keywords

  • Cirrhosis
  • Direct acting antiviral agents
  • Hepatitis C
  • Pharmacological monitoring
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In context

Hepatitis C

1,743 studies on the registry are indexed under Hepatitis C; 97 are open to participants now.

This study's enrollment of 130 is below the median of 218 across 435 observational studies indexed under Hepatitis C.

Browse Hepatitis C studies →

Lead sponsor

Hospices Civils de Lyon is the lead sponsor of 1,866 studies on the registry; 448 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

All HCV infected patients from the Department of Hepatology, Croix-Rousse Hospital, Lyon, France receiving sofosbuvir/daclatasvir with or without ribavirin between February and September 2014 were considered

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients with virus infection treated with sofosbuvir/daclatasvir
  • Patients with at least one measurement of sofosbuvir or daclatasvir plasma concentration
  • Follow-up of at least 3 months after the end of treatment

Exclusion criteria

Exclusion Criteria:

  • Patients with severe renal failure (estimated (eGFR)\<30ml/min/1.73m2)
  • Patients with liver transplantation during therapy
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

05

Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
130 participants (actual)
Patient registry
No

Groups and cohorts

  • Sofosbuvir/daclatasvir

    Patients with hepatitis C virus (HCV) infection treated with sofosbuvir/daclatasvir combination therapy with or without ribavirin between February and September 2014

    Drug: Sofosbuvir/daclatasvir with or without ribavirin

Interventions

  • DrugSofosbuvir/daclatasvir with or without ribavirin

    Drug pages: Sofosbuvir · Daclatasvir · Ribavirin

    Direct-acting antiviral treatment for hepatitis C virus infection

    Also known as: Combination of sofosbuvir and daclatasvir with or without ribavirin

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What researchers measure

Primary outcomes

  1. Sofosbuvir/daclatasvir plasma concentration

    Time frame: Sofosbuvir/daclatasvir plasma concentrations were measured at week 4, 8, 12 and 24 during therapy

Secondary outcomes

  1. HCV viral load

    Time frame: At treatment initiation, at week 4, 8, 12 and 24 of therapy and 12 weeks after the end of treatment

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Study locations

1 site
  • Croix-Rousse Hospital, Hospices Civils de Lyon
    Lyon, France
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Feb 2014 to primary completion in Sep 2014, 7 months.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 19, 2017
First posted
Oct 24, 2017
StartActual
Feb 1, 2014
Primary completionActual
Sep 30, 2014
CompletionActual
Jun 30, 2015
Last update
Oct 24, 2017
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Oct 24, 2017, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03318887
Responsible party
Sponsor
First posted
Oct 24, 2017
Start date
Feb 1, 2014
Primary completion
Sep 30, 2014
Completion
Jun 30, 2015
Last update
Oct 24, 2017

Study contacts

Fabien Zoulim, MD, PhD
principal investigator · Hospices Civils de Lyon

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Oct 2017. You cannot join it, but the record below documents what was studied.

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Discussion

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