Patient Compliance During PegIntron and Rebetol Combination Therapy in Chronic Hepatitis C (Study P04690)

October 7, 2015 updated by: Merck Sharp & Dohme LLC

Patient Compliance During PegIntron (Injection Pen) and Rebetol Combination Therapy in Chronic Hepatitis C

Participants will receive PegIntron injection pen (Peginterferon alfa-2b) and Rebetol (Ribavirin) combination therapy as their usual medical treatment. The current study aims to evaluate whether the previously introduced, and now widely accepted and implemented educational program, which represents additional efforts in everyday practice to increase patient compliance, will succeed in achieving adherence rate in treated participants similar to the extent demonstrated by clinical trials.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

294

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Untreated chronic hepatitis C (CHC) participants starting Peginterferon alfa-2b (injection pen) and Ribavirin combination therapy as their usual medical treatment according to the approved dosage/regimen were selected for this study.

Description

Inclusion Criteria:

  • Before inclusion, all participants must be informed and must give consent for the use of his/her anonymized health data related to his/her treatment with Peginterferon alfa-2b (injection pen) and Ribavirin.

Exclusion Criteria:

  • According to Peginterferon alfa-2b/Ribavirin label.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Chronic hepatitis C participants
Untreated chronic hepatitis C (CHC) participants starting Peginterferon alfa-2b (injection pen) and Ribavirin combination therapy as their usual medical treatment according to the approved dosage/regimen were selected for this study.
Biological: PegIntron (Peginterferon alfa-2b)
Peginterferon alfa-2b (injection pen) administered according to the product's labeling and current practice in Hungary (1.5 micrograms [mcg]/killogram [kg]) for 12 weeks. Those participants whose continued treatment was warranted beyond week 12 based on response received therapy for 24 or 48 weeks depending on the viral genotype.
Other Names:
  • SCH 54031
  • PegIntron
Drug: Rebetol (Ribavirin)
Ribavirin capsules administered according to the product's labeling and current practice in Hungary (weight based daily) for 12 weeks. Those participants whose continued treatment was warranted beyond week 12 based on response received therapy for 24 or 48 weeks depending on the viral genotype.
Other Names:
  • SCH 18908
  • Rebetol

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants Who Are Triple-80 Compliant
Time Frame: 24 or 48 Weeks
Participants who continued treatment beyond Week 12 (i.e., 24 or 48 weeks depending on the viral genotype) were assessed for triple-80 compliance. Triple-80 compliant, or simply compliant, participants were those that received >= 80% of the planned total doses of both pegylated interferon alfa-2b and ribavirin for >=80% of the duration of the therapy. 3 rates were computed: Compliance with study duration, compliance with pegylated interferon dose, and compliance with ribavirin dose. A participant was defined as triple-80 compliant, if none of the 3 rates as defined above were less than 80.
24 or 48 Weeks

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants Who Achieved Sustained Virological Response as Assessed at 24-week Post-treatment Follow-up
Time Frame: 24 Weeks following completion of 24 or 48 weeks of therapy
Sustained virologic response (SVR) was assessed at post-treatment Follow-up Week 24. Day 1 of the Follow-up period was defined as the first day after the last dose day. A participant was considered a sustained responder if the participant had undetectable Hepatitis C virus Ribonucleic acid (HCV-RNA) level (based on qualitative test result) at Follow-up Week 24. If a participant with missing polymerase chain reaction (PCR) data at Follow-up Week 24 had undetectable HCV-RNA level at Follow-up Week 12, the participant was also considered as a sustained responder.
24 Weeks following completion of 24 or 48 weeks of therapy
Number Of Participants Self-Administering Pegylated Interferon Alfa-2b
Time Frame: Up to 48 Weeks
Number of participants self-administering Pegylated interferon alfa-2b injection pen. If a participant changed the way he or she administered the injection pen during the course of the study (from self-administering to clinic-administering or the other way around), that participant was also considered as self-administering.
Up to 48 Weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Merck Sharp & Dohme LLC

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

March 1, 2006

Primary Completion (Actual)

October 1, 2010

Study Completion (Actual)

October 1, 2010

Study Registration Dates

First Submitted

July 25, 2008

First Submitted That Met QC Criteria

July 25, 2008

First Posted (Estimate)

July 30, 2008

Study Record Updates

Last Update Posted (Estimate)

October 8, 2015

Last Update Submitted That Met QC Criteria

October 7, 2015

Last Verified

October 1, 2015

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • P04690

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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