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TMC435

Phase 3

Hepatitis C, Chronic | Small molecule | Infectious Disease |Johnson & Johnson|Last Updated: Sep 21, 2016

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindCONTROLLEDDMCBiomarker
Total Trials7
Total Enrollment1,198
FDA Designations
No designations recorded
Clinical Trials (7)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT01846832A Study of TMC435 Plus Pegylated Interferon Alfa-2a and Ribavirin in Participants With Chronic HCV InfectionPHASE3 COMPLETED 232Sep 1, 2013Aug 1, 2015Sep 21, 201620 Austria, Belgium +5
NCT01725529An Efficacy, Pharmacokinetics, Safety and Tolerability Study of TMC435 as Part of a Treatment Regimen for Hepatitis C-Infected PatientsPHASE3 COMPLETED 457Nov 1, 2012Nov 1, 2014Aug 13, 201521 China, South Korea
NCT01366638A Study of TMC435 in Participants With Genotype 1 Hepatitis C Virus (HCV) InfectionPHASE3 COMPLETED 79May 1, 2011Nov 1, 2012May 5, 201411 Japan
NCT01288209A Phase III Study of TMC435 in Genotype 1, Hepatitis C-infected Participants Who Failed to Respond to Previous IFN-based TherapyPHASE3 COMPLETED 106Feb 1, 2011Sep 1, 2012Jan 24, 201419 Japan
NCT01292239A Phase III Study of TMC435 in Treatment-naive, Genotype 1, Hepatitis C-infected PatientsPHASE3 COMPLETED 183Feb 1, 2011Oct 1, 2012Jan 17, 201428 Japan
NCT01290731A Study of TMC435 in Genotype 1, Hepatitis C-infected Patients Who Relapsed After Previous Interferon (IFN)-Based TherapyPHASE3 COMPLETED 49Jan 1, 2011Aug 1, 2012Feb 4, 201410 Japan
NCT00996476A Study to Assess the Effectiveness, Safety, and Pharmacokinetics of TMC435 in Combination With Peginterferon Alfa-2a and Ribavirin in Hepatitis-C Infected PatientsPHASE2 COMPLETED 92Jul 1, 2009Jan 1, 2011Apr 17, 201419 Japan
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Study Endpoints
Primary Endpoints
The proportion (percentage) of participants infected wtih genotype 1 HCV with a sustained virologic response 12 weeks after planned end of treatment (SVR12)
Week 24

Participants are considered to have reached SVR12 if at the actual end of treatment hepatitis C virus (HCV) ribonucleic acid (RNA) levels \< 25 IU/mL undetectable, AND at the time point of SVR12 (i.e., 12 weeks after the planned end of treatment \[EOT\]), HCV RNA levels \< 25 IU/mL undetectable.

Percentage of Participants With Sustained Virologic Response 12 Weeks After End of Study Drug Treatment (SVR12)
12 weeks after the end of treatment (EOT: Week 24 or 48)

Participants considered to have achieved SVR12 if both conditions are met: 1). the hepatitis C virus ribonucleic acid (HCV RNA) is less than (\<) lower limit of quantification (LLOQ; 25 international unit per milliliter \[IU/mL\]) undetectable at end of treatment and, 2). the HCV RNA is \< LLOQ detectable or undetectable at 12 weeks after the planned end of study drug treatment.

The Percentage of Participants With a Sustained Virologic Response 12 Weeks After the Actual End of Treatment (SVR12)
Week 36 or 60

The table below shows the percentage of participants in each treatment group with an SVR12 defined as participants with undetectable plasma Hepatitis C virus (HCV) ribonucleic acid (RNA) at the end of treatment (Week 24 or 48) who also had undetectable plasma HCV RNA 12 weeks after the last dose of treatment (Week 36 or 60). NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

The Percentage of Participants With a Sustained Virologic Response 24 Weeks After the Actual End of Treatment (SVR24)
24 weeks after the last dose of treatment (Week 48 or 72)

The table below shows the percentage of participants in each treatment group with a SVR24 defined as participants with undetectable plasma hepatitis C virus (HCV) ribonucleic acid (RNA) at the end of treatment and at 24 weeks after the last dose of treatment (Week 48 or 72). NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

The Percentage of Participants With Undetectable Plasma Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) During Treatment and at the End of Treatment
Weeks 4, 12, 24, 36, 48, 60, 72, and EOT (up to Week 48)

The table below shows the percentage of participants in each treatment group with undetectable HCV RNA less than 1.2 log10 IU/mL during treatment and at end of treatment (EOT). NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

The Number of Participants With Viral Breakthrough
Up to 48 Weeks

The table below shows the number of participants in each treatment group who experienced viral breakthrough during the TMC435 treatment period. Viral breakthrough is defined as a confirmed increase of greater than 1 log10 IU/mL in plasma hepatitis C virus (HCV) ribonucleic acid (RNA) level from the lowest level reached or a confirmed value of plasma HCV RNA of greater than 2.0 log10 IU/mL in participants whose plasma HCV RNA level had previously been reported below 1.2 log10 IU/mL detectable or undetectable. NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

The Number of Participants Demonstrating Viral Relapse
Up to 72 weeks

The table below shows the number of participants in each treatment group who demonstrated viral relapse, defined as having undetectable plasma hepatitis C virus (HCV) ribonucleic acid (RNA) levels at end of treatment (EOT \[Week 24 or 48\]) and detectable HCV RNA during follow-up or detectable HCV RNA at the time points of an assessment of sustained virologic response (SVR). The number of participants analyzed in each treatment group below are those with undetectable HCV RNA levels at EOT and with at least one follow-up HCV RNA measurement. NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

The Number of Participants With Abnormal Alanine Aminotransferase (ALT) Levels at Baseline Who Achieved Normal Limit of ALT at the End of Treatment (EOT)
Up to Week 48

The table below shows the number of participants in each treatment group with abnormal ALT levels at Baseline who achieved normalization of ALT levels defined as having an ALT value less than or equal to the Upper Limit of Normality (ie, 40 IU/mL) at EOT. At Baseline, 15 treatment-naïve participants, 13 prior relapsers, and 13 prior non-responders had abnormal ALT levels at Baseline. NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

The Percentage of Participants Who Achieved a Greater Than or Equal to 2 log10 IU/mL Drop From Baseline in Plasma Hepatitis C Virus Ribonucleic Acid (HCV RNA) at Each Time Point During Treatment and Follow-up
Day 3, Day 7 and Weeks 2, 3, 4, 8, 12, 16, 20, 24, 28, 36, 48, 60, 72, EOT (up to Week 24 or 48), follow-up (FU) Week 4, 12, and 24

The table below shows the percentage of participants in each treatment group with greater than or equal to 2 log10 IU/mL drop from baseline in plasma hepatitis C virus (HCV) ribonucleic acid (RNA) at each time point during treatment and post-treatment follow-up. NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

The Percentage of Participants Who Met Response Guided Treatment (RGT) Criteria and Completed Treatment With Peginterferon Alpha-2b (PegIFNα-2b) and Ribavirin (RBV) at Week 24
Week 24 or 48

The table below shows the percentage of participants in each treatment group who met RGT criteria (ie, who had plasma levels of hepatitis C virus ribonucleic acid \[HCV RNA\] \<1.2 log10 IU/mL detectable/undetectable at Week 4 and \<1.2 log 10 IU/mL undetectable at Week 12) and completed treatment with PegIFNα-2b and RBV at Week 24. Participants in the TMC435 Treatment-Naïve and TMC435 Prior Relapser treatment groups not meeting RGT criteria continued treatment with PegIFNα-2a and RBV to Week 48 (does not apply to the TMC435 Non-responder treatment group because the specified treatment duration was 48 weeks and RGT criteria was not assessed at Week 24). NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

The Area Under the Plasma Concentration-Time Curve (From 0 to 24 Hours) (AUC24h)
Overall (Up to Week 12)

The table below shows the median (range) AUC24h values for TMC435 for all participants in each TMC435 treatment group who received TMC435 for up to 12 weeks. "Overall" is the median exposure estimate using all available data for each participant in the study. NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

Plasma Concentrations of TMC435
Overall (Up to Week 12)

The table below shows the median (range) TMC435 predose plasma concentrations (C0h) and maximum concentration (Cmax) values for participants in each treatment group. "Overall" is the median exposure estimate using all available data for each participant in the study. NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

The Percentage of Participants With a Sustained Virologic Response at the End of Treatment (EOT) and 12 Weeks After the Last Dose of Treatment (SVR12)
EOT (Week 24 or 48) and Week 36 or 60

The table below shows the observed percentage of participants in each treatment group with a SVR12 defined as undetectable plasma hepatitis C virus (HCV) ribonucleic acid (RNA) levels at the EOT (Week 24 or 48) and at 12 weeks after the last dose of treatment (Week 36 or 60).

Change in Plasma Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) Levels From Baseline to Week 4
Day 1 (Baseline) and Week 4

The table below shows the least-squares (LS) mean change and 95% confidence intervals (CI) change from baseline at Week 4 in HCV RNA levels for participants in the 2 TMC435 50 mg treatment groups combined (TMC12/PR24 50 mg and TMC24/PR24 50 mg) and for participants in the 2 TMC435 100 mg treatment groups combined (TMC12/PR24 100 mg and TMC24/PR24 100 mg). The statistical analyses show the difference in LS mean change from baseline from the PR48 control group and the 95% CI for each dose group (ie, each TMC435 dose group minus PR48 control). NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

The Percentage of Participants With Undetectable Plasma Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) Levels During the Study
Weeks 4, 12, 24 or 48, and EOT (up to Week 24 or 48)

The table below shows the percentage of participants in each treatment group with undetectable plasma HCV RNA levels at Weeks 4, 12, 24, 48, and end of treatment (EOT, up to Week 24 or 48). The number of participants analyzed is listed at each time point in order of the treatment groups from left to right in the table (ie, Week x, n=x, x, x, x, and x) if different from the "Number of Participants Analyzed."NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

The Percentage of Participants With a Decrease of Greater Than or Equal to 2 log10 IU/mL From Baseline in Plasma Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) Through the Post-treatment Follow-up Period
Days 1 (4 hr), 1 (8 hr), 3, Weeks 1, 2, 3, 4, 6, 8, 12, 16, 20, 24,28, 36, 42, 48, 52, 60, 72, and EOT (up to Week 24 or 48)

The table below shows the percentage of participants in each treatment group with a decrease of greater than (\>) or equal (=) to 2 log10 IU/mL from baseline in plasma HCV RNA levels at time points during the treatment period and post treatment follow-up period. The number of participants analyzed is listed at each time point in order of the treatment groups from left to right in the table (ie, Week x, n=x, x, x, x, and x) if different from the "Number of Participants Analyzed." NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

The Percentage of Participants With Plasma Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) Levels Undetectable or Below the Limit of Quantification (<1.2 log10 IU/mL Detectable) During Treatment and During Post Treatment Follow-up
Week 4, 12, 24, 36, 48, EOT (up to Week 24 or 48), and Week 60 and 72

The table below shows the percentage of participants in each treatment group with plasma HCV RNA levels undetectable or below the limit of quantification (\<1.2 log10 IU/mL detectable ) at time points during treatment and post treatment follow-up.The number of participants analyzed is listed at each time point in order of the treatment groups from left to right in the table (ie, Week x, n=x, x, x, x, and x) if different from the "Number of Participants Analyzed." NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

The Percentage of Participants With Viral Relapse
Week 36 or 60

The table below shows the percentage of participants in each treatment group who experienced viral relapse within 12 weeks (ie, at Week 36 or 60) after actual end of treatment (EOT) (up to Week 24 or 48). Viral relapse was defined as confirmed detectable plasma hepatitis C virus (HCV) ribonucleic acid (RNA) levels during the post treatment follow-up period at Weeks 36 or 60 in participants with undetectable plasma HCV RNA at EOT. The statistical analysis shows the difference in treatments (ie, each TMC435 group minus PR48 control) in viral relapse. NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

Actual Plasma Hepatitis C Virus (HCV) Ribonucleic Acid (RNA) Values up to Week 24 in the Post-treatment Follow-up Period
Baseline, Week 4, 12, 24, 48, EOT (up to Week 24 or 48), and Weeks 60 and 72

The table below shows the mean (standard deviation) of the actual HCV RNA values by treatment group at Baseline and Weeks 4, 12, 24, 48, end of treatment (EOT, up to Weeks 24 or 48), Weeks 60 and 72 (Week 24 in the post-treatment follow-up period). The number of participants analyzed is listed at each time point in order of the treatment groups from left to right in the table (ie, Week x, n=x, x, x, x, and x) if different from the "Number of Participants Analyzed." NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

The Number of Participants With Alanine Aminotransaminase (ALT) Values Within the Normal Range at the End-of-treatment (EOT)
Day 1, Weeks 24, 48, and EOT (up to Weeks 24 or 48)

The table below shows the number of participants whose ALT results were within the normal range on Day 1 (initial day of treatment), Week 24, 48, and EOT (up to Weeks 24 or 48).The number of participants analyzed is listed at each time point in order of the treatment groups from left to right in the table (ie, Week x, n=x, x, x, x, and x) if different from the "Number of Participants Analyzed." NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

The Percentage of Participants With Sustained Virologic Response (SVR)
SVR4 (up to Week 28 or Week 52), SVR12 (up to Weeks 36 or 60), and SVR24 (up to Weeks 48 or 72)

The table below shows the percentage of participants with a SVR4, SVR12, and SVR24 defined as undetectable plasma hepatitis C virus (HCV) ribonucleic acid (RNA) at the end of treatment (EOT) (up to Weeks 24 or 48) and at 4, 12, and 24 weeks, respectively, after the last dose of treatment. NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

Predose Plasma Concentrations (C0h) of TMC435 (Sparse Blood Sampling)
Weeks 4, 12, and 24

The table below shows the mean (standard deviation) predose plasma concentration (C0h) for participants in each treatment group at Weeks 4, 12, and 24. The number of participants analyzed is listed at each time point in order of the treatment groups from left to right in the table (ie, Week x, n=x, x, x, x, and x) if different from the "Number of Participants Analyzed." NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

Predose Plasma Concentrations (C0h) of TMC435 (Intensive Blood Sampling)
Weeks 4 to 6

The table below shows the mean predose plasma concentration (C0h) for participants in the 2 TMC435 50 mg treatment groups combined and for participants in the 2 TMC435 100 mg treatment groups combined who had intensive blood samples collected at Weeks 4 to 6. NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

The Area Under the Plasma Concentration-time Curve From the Time of Administration up to 24 Hours After Dosing (AUC24) for TMC435
within 15 minutes and at 1, 2, 4, 6, 8, 12, and 24 hours post-dose between Week 4 and Week 6 after the initiation of treatment

The table below shows the mean AUC24 of TMC435 for participants in the 2 TMC435 50 mg treatment groups combined (TMC12/PR24 50 mg and TMC24/PR24 50 mg) and for participants in the 2 TMC435 100 mg treatment groups combined (TMC12/PR24 100 mg and TMC24/PR24 100 mg) who had intensive blood samples collected at Weeks 4 to 6. NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

Time to Reach the Maximum Plasma Concentration (Tmax) of TMC435
within 15 minutes and at 1, 2, 4, 6, 8, 12, and 24 hours post-dose between Week 4 and Week 6 after the initiation of treatment

The table below shows the median time in hours to reach the maximum plasma concentration (tmax) of TMC435 for participants in the 2 TMC435 50 mg treatment groups combined (TMC12/PR24 50 mg and TMC24/PR24 50 mg) and for participants in the 2 TMC435 100 mg treatment groups combined (TMC12/PR24 100 mg and TMC24/PR24 100 mg) who had intensive blood samples collected at Weeks 4 to 6. NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

The Number of Participants Who Met Virologic Stopping/Continuation Rules and Completed All Study Medications
Week 24

The table below shows the number of participants who met response-guided treatment (RGT) stopping criteria in the TMC435 treatment groups. Participants who achieved plasma hepatitis C virus (HCV) ribonucleic acid (RNA) levels less than 1.4 log10 IU/mL at Week 4 and had undetectable plasma HCV RNA at Weeks 12, 16 and 20 were to stop all study medication (TMC435, PegIFNα-2a, and ribavirin) at Week 24. All other participants continued PegIFNα-2a and ribavirin until Week 48. NOTE: All outcome measures reported in this study are "Exploratory;" not "Primary" as indicated (refer to Limits and Caveats).

Secondary Endpoints
The proportion (percentage) of participants infected wtih genotype 4 HCV with a sustained virologic response 12 weeks after planned end of treatment (SVR12)
Week 24
The proportion (percentage) of participants who achieve rapid virologic response (RVR)
Week 4
The proportion (percentage) of participants who achieve virologic response at Week 2 (W2VR)
Week 2
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Study Design & Arms
AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
TMC435 + PegIFNα-2a + RBVEXPERIMENTALTMC435 will be administered as triple therapy with pegylated interferon alfa-2a (PegIFNα-2a) and ribavirin (RBV).
TMC435 150 mgEXPERIMENTALPatients will receive 12 weeks TMC435 150 mg once daily (q.d.) plus peginterferon-alpha (PegIFNα-2a) and ribavirin (RBV), followed by PegIFNα-2a and RBV alone. Response-guided treatment criteria will be used to determine total treatment duration of 24 or 48 weeks for patients in the TMC435 treatment groups. Patients in the control group will continue to receive treatment with PegIFNα-2a and RBV until Week 48.
TMC435 100 mgEXPERIMENTALPatients will receive 12 weeks TMC435 100 mg once daily (q.d.) plus peginterferon-alpha (PegIFNα-2a) and ribavirin (RBV), followed by PegIFNα-2a and RBV alone. Response-guided treatment criteria will be used to determine total treatment duration of 24 or 48 weeks for patients in the TMC435 treatment groups. Patients in the control group will continue PegIFNα-2a and RBV until Week 48.
ControlPLACEBO_COMPARATORPatients will receive placebo once daily (q.d.) plus peginterferon-alpha (PegIFNα-2a) and ribavirin (RBV) for 48 weeks.
Treatment-Naive: TMC435 100 mg 12 Wks+PR 24/48EXPERIMENTALParticipants will receive TMC435 100 mg once daily with PegIFNa-2b and ribavirin (PR) for 12 weeks (Wks), followed by PR until Week 24 or Week 48. Treatment will be stopped at Week 24 in participants who achieve plasma hepatitis C virus (HCV) ribonucleic acid (RNA) levels \<1.2 log10 IU/mL detectable or undetectable at Week 4, and undetectable plasma HCV RNA levels at Week 12. All other participants will continue PR until Week 48.
Prior Relapser: TMC435 100 mg 12 Wks+PR 24/48EXPERIMENTALParticipants will receive TMC435 100 mg once daily with PegIFNa-2b and ribavirin (PR) for 12 weeks (Wks) followed by PR until Week 24. Treatment will be stopped at Week 24 in participants who achieve plasma hepatitis C virus (HCV) ribonucleic acid (RNA) levels \<1.2 log10 IU/mL detectable or undetectable at Week 4, and undetectable plasma HCV RNA levels at Week 12. All other participants will continue PR until Week 48.
Prior Non-Responder: TMC435 100 mg 12 Wks+PR 48EXPERIMENTALParticipants will receive TMC435 100 mg once daily with PegIFNa-2b and ribavirin (PR) for 12 weeks (Wks) followed by PR until Week 48.
TMC435 100 mg 12 Wks + PR24/48EXPERIMENTALParticipants will receive TMC435 100 mg once daily with PegIFNα-2a and ribavirin (PR) for 12 weeks (Wks) followed by PR until Week 24. Treatment will be stopped at Week 24 if participants achieve plasma hepatitis C virus (HCV) ribonucleic acid (RNA) levels \< 1.2 log10 IU/mL detectable or undetectable at Week 4, and undetectable plasma HCV RNA levels at Week 12. All other participants will continue PR until Week 48.
TMC435 100 mg 24 Wks + PR24/48EXPERIMENTALParticipants will receive TMC435 100 mg once daily with PegIFNα-2a and ribavirin ( PR) for 24 weeks (Wks). Treatment will be stopped at Week 24 if participants achieve plasma hepatitis C virus (HCV) ribonucleic acid (RNA) levels \< 1.2 log10 IU/mL detectable or undetectable at Week 4, and undetectable plasma HCV RNA levels at Week 12. All other participants will continue PR until Week 48.
TMC435 100 mg 12 Wks + PR 24/48EXPERIMENTALParticipants received TMC435 100 mg once daily with PegIFNα-2a and ribavirin (PR) for 12 weeks (Wks) followed by PR until Week 24. Treatment was stopped at Week 24 for participants who achieved HCV RNA \< 1.2 log10 IU/mL detectable or undetectable at Week 4, and undetectable HCV RNA at Week 12. All other participants continued PR until Week 48.
PBO 12 Wks + PR 48EXPERIMENTALParticipants received placebo (PBO) once daily with PegIFNα-2a and ribavirin (PR) for 12 weeks (Wks) followed by PR until Week 48.
TMC12/PR24 50 mgEXPERIMENTALParticipants received TMC435 50 mg once daily with PegIFNa-2a and ribavirin (PR) for 12 weeks followed by PR until Week 24 Participants who achieved plasma hepatitis C virus (HCV) ribonucleic acid (RNA) levels \<1.4 log10 IU/mL at Week 4 and had undetectable plasma HCV RNA at Weeks 12, 16 and 20, discontinued all study treatment (TMC435 and PR) at Week 24. All other participants continued PR until Week 48.
TMC12/PR24 100 mgEXPERIMENTALParticipants received TMC435 100 mg once daily plus PegIFNa-2a and ribavirin (PR) for 12 weeks followed by PR until Week 24. Participants who achieved plasma hepatitis C virus (HCV) ribonucleic acid (RNA) levels \<1.4 log10 IU/mL at Week 4 and had undetectable plasma HCV RNA at Weeks 12, 16 and 20, discontinued all study treatment (TMC435 and PR) at Week 24. All other participants continued PR until Week 48.
TMC24/PR24 50 mgEXPERIMENTALParticipants received TMC435 50 mg once daily plus PegIFNa-2a and ribavirin (PR) for 24 weeks. Participants who achieved plasma hepatitis C virus (HCV) ribonucleic acid (RNA) levels \<1.4 log10 IU/mL at Week 4 and had undetectable plasma HCV RNA at Weeks 12, 16 and 20, discontinued all study treatment (TMC435, PR) at Week 24. All other participants continued PR until Week 48.
TMC24/PR24 100 mgEXPERIMENTALParticipants received TMC435 100 mg once daily plus PegIFNa-2a and ribavirin (PR) for 24 weeks. Participants who achieved plasma hepatitis C virus (HCV) ribonucleic acid (RNA) levels \<1.4 log10 IU/mL at Week 4 and had undetectable plasma HCV RNA at Weeks 12, 16 and 20, discontinued all study treatment (TMC435 and PR) at Week 24. All other participants continued PR until Week 48.
PR48 ControlEXPERIMENTALParticipants received PegIFNa-2a and ribavirin (PR) for 48 weeks (PR48 control group)
Interventions
NameTypeDescription
TMC435DRUG150 mg taken orally (by mouth) as a capsule with food once daily for 12 weeks.
Pegylated interferon alfa-2a (PegIFNα-2a)DRUG180 mcg administered according to the manufacturer's prescribing information as a 0.5 mL subcutaneous (under the skin) (SC) injection once a week in the morning or evening for up to 24 weeks.
Ribavirin (RBV)DRUG1000 mg or 1200 mg administered according to the manufacturer's prescribing information for up to 24 weeks. If the participant's baseline body weight is \< 75 kg, the total daily dose of RBV will be 1000 mg, administered orally (by mouth) as 400 mg (2 tablets of 200 mg, intake with food) in the morning and 600 mg (3 tablets of 200 mg, intake with food) in the evening. If the baseline body weight is \> or = 75 kg, the total daily dose will be 1200 mg, administered as 600 mg in the morning and evening (3 tablets of 200 mg per intake, with food).
Peginterferon-alpha (PegIFNα-2a)DRUGPegIFNα-2a (180 micrograms \[μg\] once weekly) administered as weekly subcutaneous (s.c.) (under the skin) injections of 0.5 mL for 24 or 48 weeks.
PlaceboDRUGMatching placebo capsules taken orally with food once-daily for 48 weeks.
Peginterferon alfa-2b (pegIFN alfa-2b)DRUGPegIFN alfa-2b will be supplied as a vial containing dried and frozen powder with 74,148 or 222 mcg pegIFN alpha-2b attached to 0.7 ml injection water (50, 100 or 150 mcg/0.5mL pegIFN alpha-2b) and will be administered according to the manufacturer's prescribing information as 1.5 mcg/kg once weekly injected subcutaneous (under the skin) for up to 24-48 weeks.
Peginterferon alfa-2a (PegIFNα-2a )DRUGPegIFNα-2a (PEGASYS) will be administered according to the manufacturer's prescribing information as 180 mcg once weekly injected subcutaneous (under the skin) for up to 24-48 weeks.
Peginterferon alfa-2a (pegIFN alfa-2a)DRUGPegIFN alfa-2a (PEGASYS) will be administered according to the manufacturer's prescribing information as 180 mcg once weekly injected subcutaneous (under the skin) for up to 24-48 weeks for patients randomized to TMC435 and for up to 48 weeks for patients randomized to placebo.
Pegylated interferon (pegIFN alpha-2a)DRUG180 mcg injected subcutaneously (by a syringe under the skin) once weekly for 12 to 36 weeks (or until Week 48).
PegIFNα-2aDRUGOne subcutaneous injection of PegIFNα-2a 180 μg once weekly for 12, 24, or 48 weeks.
RBVDRUG300, 400, or 500-mg tablets orally twice daily for 12, 24, or 48 weeks.
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Eligibility Criteria
Age Range18 Years — 70 Years
SexALL
Healthy VolunteersNo
Study Sites20

Inclusion Criteria: * treatment-naïve with confirmed chronic Hepatitis C Virus (HCV) infection * liver biopsy performed within 2 years prior to screening or non-invasive confirmation of the liver disease stage (by transient elastography) performed within 6 months prior to screening * liver disease ...

Countries:AustriaBelgiumFranceGermanySaudi ArabiaSpainUnited KingdomChinaSouth KoreaJapan
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