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A Study to Evaluate the Efficacy and Safety of Three Experimental Drugs in Adults With Hepatitis C Virus Infection, Who Are Either Treatment-naive or Treatment-experienced in Brazil

An Open-Label, Multicenter Study to Evaluate the Efficacy and Safety of Ombitasvir/ABT-450/Ritonavir and Dasabuvir With or Without Ribavirin (RBV) in Treatment-Naïve or Treatment-Experienced Adults in Brazil With Genotype 1 Chronic Hepatitis C Virus (HCV) Infection (TOPAZ III)

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02442271
Enrollment
222
Registered
2015-05-13
Start date
2015-04-27
Completion date
2016-09-26
Last updated
2017-08-01

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

Conditions

Chronic Hepatitis C Infection

Keywords

Chronic Hepatitis C, Hepatitis C Treatment Naive, Hepatitis C Genotype 1, Hepatitis C Treatment Experienced, Hepatitis C Virus

Brief summary

The purpose of this study is to evaluate the proportion of subjects achieving sustained virologic response 12 weeks post-treatment (SVR12) in adults with genotype 1 (GT1) chronic HCV infection, who received treatment with 3 direct-acting antiviral agents (3-DAAs; ombitasvir/paritaprevir/ritonavir and dasabuvir) with or without ribavirin.

Interventions

Tablet; ombitasvir coformulated with paritaprevir and ritonavir, dasabuvir tablet

DRUGribavirin

Tablet

Sponsors

AbbVie
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Females must be post-menopausal for more than 2 years or surgically sterile or practicing acceptable forms of birth control * Males must be surgically sterile or agree to practice acceptable forms of birth control * Chronic hepatitis C virus (HCV) infection at screening * Fibrosis stage F3 or greater, documented by acceptable tests * Participants with cirrhosis: Absence of hepatocellular carcinoma (HCC) as indicated by acceptable methods

Exclusion criteria

* Women who are pregnant or breastfeeding * Positive test result for Hepatitis B surface antigen (HbsAg) or anti-HIV antibody positive (HIV Ab) * Use of contraindicated medications within 2 weeks of dosing * Clinically significant abnormalities or co-morbidities * History of solid organ transplant * Abnormal laboratory tests * Current or past clinical evidence of Child-Pugh B or C classification or clinical history of liver decompensation

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With Sustained Virologic Response 12 Weeks Post-treatment (SVR12)12 weeks after the last actual dose of study drugSVR12 was defined as plasma hepatitis C virus ribonucleic acid (HCV RNA) level less than the lower limit of quantification \[\<LLOQ\]) 12 weeks after the last dose of study drug. Participants with missing data were counted as failures.

Secondary

MeasureTime frameDescription
Percentage of Participants With SVR12 by Participant Prior HCV Treatment Experience12 weeks after the last actual dose of study drugSVR12 was defined as HCV RNA level \<LLOQ 12 weeks after the last dose of study drug. Data are presented by prior HCV treatment experience. Data are provided by participants' prior HCV treatment experience at screening. Participants with missing data were counted as failures.
Percentage of Participants With SVR12 by Participant Eligibility for Treatment With Interferon (IFN) at Screening12 weeks after the last actual dose of study drugSVR12 was defined as HCV RNA level \<LLOQ 12 weeks after the last dose of study drug. Data are presented by prior HCV treatment experience. Data are provided by participants' eligibility for treatment with IFN at screening. Participants with missing data were counted as failures.
Percentage of Participants With SVR12 by Fibrosis Stage12 weeks after the last actual dose of study drugSVR12 was defined as plasma HCV RNA level \<LLOQ\]12 weeks after the last dose of study drug. The percentage of participants achieving SVR12 by fibrosis stage (F3 and F4) are presented. Participants with missing data were counted as failures.
Short-Form 36 Version 2 Health Survey (SF-36v2) Physical Component Summary (PCS) Scores: Change From Baseline to 12 Weeks After the Last Dose of Study DrugDay 1 (Baseline), 12 weeks after the last actual dose of the study drugThe SF-36v2 is a non-disease specific Health Related Quality of Life (HRQoL) instrument. The SF-36v2 comprises 36 total items (questions) targeting a subject's functional health and well-being in 8 domains (physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional and mental health) with a recall period of four weeks. Domain scores are aggregated into a Physical Component Summary (PCS) score and a Mental Component Summary (MCS) score. SF-36v2 scores range from 1-100: higher scores indicate a better state of health and a decrease from baseline represents worsening. If a participant answered at least 50% of the items in a multi-item scale of the SF-36v2, the missing items were imputed with the average score of the answered items in the same domain. In cases where the participant did not answer at least 50% of the items, the score for that domain was considered missing. The SF-36v2 MCS and PCS scores were not computed if any domain
(SF-36v2) Mental Component Summary (MCS) Scores: Change From Baseline to 12 Weeks After the Last Dose of Study DrugDay 1 (Baseline), 12 weeks after the last actual dose of the study drugThe SF-36v2 is a non-disease specific Health Related Quality of Life (HRQoL) instrument. The SF-36v2 comprises 36 total items (questions) targeting a subject's functional health and well-being in 8 domains (physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional and mental health) with a recall period of four weeks. Domain scores are aggregated into a PCS score and a MCS score. Scores SF-36v2 scores range from 1-100: higher scores indicate a better state of health and a decrease from baseline represents worsening. If a participant answered at least 50% of the items in a multi-item scale of the SF-36v2, the missing items were imputed with the average score of the answered items in the same domain. In cases where the participant did not answer at least 50% of the items, the score for that domain was considered missing. The SF-36v2 MCS and PCS scores were not computed if any domain was missing.
Hepatitis C Virus Patient-Reported Outcomes Instrument (HCV-PRO) Total Score: Change From Baseline to 12 Weeks After the Last Dose of Study DrugDay 1 (Baseline), 12 weeks after the last actual dose of the study drugThe HCV-PRO has been developed to capture the function and well-being impact of HCV conditions and treatment and contains 16 items important to HCV-infected patients; items were totaled to a summary score. Scores range from 0 to 100. A higher HCV-PRO score indicates a better state of health and a decrease from baseline represents worsening. If a participant answered at least 12 of the 16 items, the missing items were imputed with the mean score of the answered items; if a participant did not answer at least 12 of the items, the total score was considered missing.

Participant flow

Pre-assignment details

Treatment regimen was assigned according to HCV genotype/subtype and cirrhosis status.

Participants by arm

ArmCount
3-DAA ± RBV
3-DAA (ombitasvir/paritaprevir/ritonavir \[25 mg/150 mg/100 once daily\] and dasabuvir \[250 mg twice daily\]) with or without weight-based ribavirin (± RBV; dosed 1,000 or 1,200 mg daily divided twice a day) for 12 or 24 weeks.
222
Total222

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyAdverse Event1
Overall StudyLost to Follow-up1
Overall StudyOther1
Overall StudyWithdrew Consent1

Baseline characteristics

Characteristic3-DAA ± RBV
Age, Continuous56.6 years
STANDARD_DEVIATION 10.34
Sex: Female, Male
Female
99 Participants
Sex: Female, Male
Male
123 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
— / —
other
Total, other adverse events
139 / 222
serious
Total, serious adverse events
6 / 222

Outcome results

Primary

Percentage of Participants With Sustained Virologic Response 12 Weeks Post-treatment (SVR12)

SVR12 was defined as plasma hepatitis C virus ribonucleic acid (HCV RNA) level less than the lower limit of quantification \[\<LLOQ\]) 12 weeks after the last dose of study drug. Participants with missing data were counted as failures.

Time frame: 12 weeks after the last actual dose of study drug

Population: Intent-to-treat population: all participants who received at least 1 dose of study drug.

ArmMeasureValue (NUMBER)
3-DAA ± RBVPercentage of Participants With Sustained Virologic Response 12 Weeks Post-treatment (SVR12)96.4 percentage of participants
Secondary

Hepatitis C Virus Patient-Reported Outcomes Instrument (HCV-PRO) Total Score: Change From Baseline to 12 Weeks After the Last Dose of Study Drug

The HCV-PRO has been developed to capture the function and well-being impact of HCV conditions and treatment and contains 16 items important to HCV-infected patients; items were totaled to a summary score. Scores range from 0 to 100. A higher HCV-PRO score indicates a better state of health and a decrease from baseline represents worsening. If a participant answered at least 12 of the 16 items, the missing items were imputed with the mean score of the answered items; if a participant did not answer at least 12 of the items, the total score was considered missing.

Time frame: Day 1 (Baseline), 12 weeks after the last actual dose of the study drug

Population: All participants in the ITT population with evaluable data.

ArmMeasureGroupValue (MEAN)Dispersion
3-DAA ± RBVHepatitis C Virus Patient-Reported Outcomes Instrument (HCV-PRO) Total Score: Change From Baseline to 12 Weeks After the Last Dose of Study DrugSVR12 Not Achieved0.5 units on a scaleStandard Deviation 10.97
3-DAA ± RBVHepatitis C Virus Patient-Reported Outcomes Instrument (HCV-PRO) Total Score: Change From Baseline to 12 Weeks After the Last Dose of Study DrugSVR12 Achieved3.8 units on a scaleStandard Deviation 13.25
Fibrosis Stage F4Hepatitis C Virus Patient-Reported Outcomes Instrument (HCV-PRO) Total Score: Change From Baseline to 12 Weeks After the Last Dose of Study DrugSVR12 Not Achieved0.8 units on a scaleStandard Deviation 10.64
Fibrosis Stage F4Hepatitis C Virus Patient-Reported Outcomes Instrument (HCV-PRO) Total Score: Change From Baseline to 12 Weeks After the Last Dose of Study DrugSVR12 Achieved4.2 units on a scaleStandard Deviation 15.72
Secondary

Percentage of Participants With SVR12 by Fibrosis Stage

SVR12 was defined as plasma HCV RNA level \<LLOQ\]12 weeks after the last dose of study drug. The percentage of participants achieving SVR12 by fibrosis stage (F3 and F4) are presented. Participants with missing data were counted as failures.

Time frame: 12 weeks after the last actual dose of study drug

Population: All participants in the ITT population.

ArmMeasureValue (NUMBER)
3-DAA ± RBVPercentage of Participants With SVR12 by Fibrosis Stage96.6 percentage of participants
Fibrosis Stage F4Percentage of Participants With SVR12 by Fibrosis Stage96.2 percentage of participants
Secondary

Percentage of Participants With SVR12 by Participant Eligibility for Treatment With Interferon (IFN) at Screening

SVR12 was defined as HCV RNA level \<LLOQ 12 weeks after the last dose of study drug. Data are presented by prior HCV treatment experience. Data are provided by participants' eligibility for treatment with IFN at screening. Participants with missing data were counted as failures.

Time frame: 12 weeks after the last actual dose of study drug

Population: All participants in the ITT population.

ArmMeasureValue (NUMBER)
3-DAA ± RBVPercentage of Participants With SVR12 by Participant Eligibility for Treatment With Interferon (IFN) at Screening90.0 percentage of participants
Fibrosis Stage F4Percentage of Participants With SVR12 by Participant Eligibility for Treatment With Interferon (IFN) at Screening96.7 percentage of participants
Pegylated Interferon (PegIFN)//RBV Partial RespondersPercentage of Participants With SVR12 by Participant Eligibility for Treatment With Interferon (IFN) at Screening85.7 percentage of participants
Pegylated Interferon (PegIFN)/RBV Non-RespondersPercentage of Participants With SVR12 by Participant Eligibility for Treatment With Interferon (IFN) at Screening97.3 percentage of participants
Secondary

Percentage of Participants With SVR12 by Participant Prior HCV Treatment Experience

SVR12 was defined as HCV RNA level \<LLOQ 12 weeks after the last dose of study drug. Data are presented by prior HCV treatment experience. Data are provided by participants' prior HCV treatment experience at screening. Participants with missing data were counted as failures.

Time frame: 12 weeks after the last actual dose of study drug

Population: All participants in the ITT population.

ArmMeasureValue (NUMBER)
3-DAA ± RBVPercentage of Participants With SVR12 by Participant Prior HCV Treatment Experience96.1 percentage of participants
Fibrosis Stage F4Percentage of Participants With SVR12 by Participant Prior HCV Treatment Experience95.5 percentage of participants
Pegylated Interferon (PegIFN)//RBV Partial RespondersPercentage of Participants With SVR12 by Participant Prior HCV Treatment Experience100 percentage of participants
Pegylated Interferon (PegIFN)/RBV Non-RespondersPercentage of Participants With SVR12 by Participant Prior HCV Treatment Experience100 percentage of participants
Pegylated Interferon (PegIFN)/RBV RelapserPercentage of Participants With SVR12 by Participant Prior HCV Treatment Experience97.1 percentage of participants
Pegylated Interferon (PegIFN)/RBV BreakthroughPercentage of Participants With SVR12 by Participant Prior HCV Treatment Experience100 percentage of participants
IFN InterolerantPercentage of Participants With SVR12 by Participant Prior HCV Treatment Experience85.7 percentage of participants
OtherPercentage of Participants With SVR12 by Participant Prior HCV Treatment Experience91.7 percentage of participants
Secondary

(SF-36v2) Mental Component Summary (MCS) Scores: Change From Baseline to 12 Weeks After the Last Dose of Study Drug

The SF-36v2 is a non-disease specific Health Related Quality of Life (HRQoL) instrument. The SF-36v2 comprises 36 total items (questions) targeting a subject's functional health and well-being in 8 domains (physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional and mental health) with a recall period of four weeks. Domain scores are aggregated into a PCS score and a MCS score. Scores SF-36v2 scores range from 1-100: higher scores indicate a better state of health and a decrease from baseline represents worsening. If a participant answered at least 50% of the items in a multi-item scale of the SF-36v2, the missing items were imputed with the average score of the answered items in the same domain. In cases where the participant did not answer at least 50% of the items, the score for that domain was considered missing. The SF-36v2 MCS and PCS scores were not computed if any domain was missing.

Time frame: Day 1 (Baseline), 12 weeks after the last actual dose of the study drug

Population: All participants in the ITT population with evaluable data.

ArmMeasureGroupValue (MEAN)Dispersion
3-DAA ± RBV(SF-36v2) Mental Component Summary (MCS) Scores: Change From Baseline to 12 Weeks After the Last Dose of Study DrugSVR12 Not Achieved2.4 units on a scaleStandard Deviation 3.72
3-DAA ± RBV(SF-36v2) Mental Component Summary (MCS) Scores: Change From Baseline to 12 Weeks After the Last Dose of Study DrugSVR12 Achieved2.4 units on a scaleStandard Deviation 11.39
Fibrosis Stage F4(SF-36v2) Mental Component Summary (MCS) Scores: Change From Baseline to 12 Weeks After the Last Dose of Study DrugSVR12 Not Achieved-0.6 units on a scaleStandard Deviation 8.47
Fibrosis Stage F4(SF-36v2) Mental Component Summary (MCS) Scores: Change From Baseline to 12 Weeks After the Last Dose of Study DrugSVR12 Achieved2.5 units on a scaleStandard Deviation 9.15
Secondary

Short-Form 36 Version 2 Health Survey (SF-36v2) Physical Component Summary (PCS) Scores: Change From Baseline to 12 Weeks After the Last Dose of Study Drug

The SF-36v2 is a non-disease specific Health Related Quality of Life (HRQoL) instrument. The SF-36v2 comprises 36 total items (questions) targeting a subject's functional health and well-being in 8 domains (physical functioning, role physical, bodily pain, general health, vitality, social functioning, role emotional and mental health) with a recall period of four weeks. Domain scores are aggregated into a Physical Component Summary (PCS) score and a Mental Component Summary (MCS) score. SF-36v2 scores range from 1-100: higher scores indicate a better state of health and a decrease from baseline represents worsening. If a participant answered at least 50% of the items in a multi-item scale of the SF-36v2, the missing items were imputed with the average score of the answered items in the same domain. In cases where the participant did not answer at least 50% of the items, the score for that domain was considered missing. The SF-36v2 MCS and PCS scores were not computed if any domain

Time frame: Day 1 (Baseline), 12 weeks after the last actual dose of the study drug

Population: All participants in the ITT population with evaluable data.

ArmMeasureGroupValue (MEAN)Dispersion
3-DAA ± RBVShort-Form 36 Version 2 Health Survey (SF-36v2) Physical Component Summary (PCS) Scores: Change From Baseline to 12 Weeks After the Last Dose of Study DrugSVR12 Not Achieved-0.5 units on a scaleStandard Deviation 9.22
3-DAA ± RBVShort-Form 36 Version 2 Health Survey (SF-36v2) Physical Component Summary (PCS) Scores: Change From Baseline to 12 Weeks After the Last Dose of Study DrugSVR12 Achieved0.1 units on a scaleStandard Deviation 6.42
Fibrosis Stage F4Short-Form 36 Version 2 Health Survey (SF-36v2) Physical Component Summary (PCS) Scores: Change From Baseline to 12 Weeks After the Last Dose of Study DrugSVR12 Not Achieved1.3 units on a scaleStandard Deviation 8.59
Fibrosis Stage F4Short-Form 36 Version 2 Health Survey (SF-36v2) Physical Component Summary (PCS) Scores: Change From Baseline to 12 Weeks After the Last Dose of Study DrugSVR12 Achieved2.1 units on a scaleStandard Deviation 7.6

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