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Study in Genotype 2 or 3 Patients With Chronic Hepatitis Virus Infection

A Phase 2B Pilot Study of Short-Term Treatment of BMS-790052 in Combination With Peg-Interferon Alfa-2a and Ribavirin in Treatment Naive Subjects With Chronic Hepatitis C Genotype 2 or 3 Infection

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01257204
Enrollment
196
Registered
2010-12-09
Start date
2010-12-31
Completion date
2012-09-30
Last updated
2015-12-14

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

Conditions

Hepatitis C Virus

Brief summary

To identify a shorter duration of antiviral therapy (12 or 16 weeks) for the combination of daclatasvir with pegylated interferon alfa-2a and ribavirin.

Interventions

DRUGPlacebo

Tablets, oral, 0 mg, once daily, for 24 weeks

DRUGDaclatasvir

Tablets, oral, 60 mg, once daily, for 12, 16, or 24 weeks

DRUGPegylated interferon alfa-2a

Solution for injection, subcutaneous injection, 180 µg/0.5 mL, once weekly, for 12, 16, or 24 weeks

DRUGRibavirin

Tablets, oral, 800 mg, twice daily, for 12, 16, or 24 weeks

Sponsors

Bristol-Myers Squibb
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
TRIPLE (Subject, Caregiver, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 70 Years
Healthy volunteers
No

Inclusion criteria

Key Inclusion Criteria: * Participants chronically infected with hepatitis C virus (HCV) genotype 2 or 3 * No previous exposure to an interferon formulation (ie, interferon alfa, pegylated interferon alfa-2a ) or ribavirin * Body mass index (BMI) of 18 to 35 kg/m\^2, inclusive. BMI=weight (kg)/height (m)\^2 * Males and females, 18 - 70 years of age Key

Exclusion criteria

* Liver transplant recipients * Documented or suspected hepatocellular carcinoma * Evidence of decompensated cirrhosis * History of chronic hepatitis B virus (HBV). Patients with resolved HBV infection may participate * Current or known history of cancer * Any gastrointestinal disease or surgical procedure that may impact the absorption of study drug * Inability to tolerate oral medication * Poor venous access * Severe psychiatric disease * History of chronic pulmonary disease * History of cardiomyopathy, coronary artery disease (including angina), interventive procedure for coronary artery disease (including angioplasty, stent procedure, or cardiac bypass surgery), ventricular arrhythmia,, or other clinically significant cardiac disease * History of or current electrocardiogram findings indicative of cardiovascular instability * Preexisting ophthalmologic disorders considered clinically significant on eye * History of uncontrolled diabetes mellitus * Any known contraindication to pegylated interferon alfa-2a or ribavirin not otherwise specified. * Positive hepatitis B virus surface antigen, HIV-1 or HIV-2 Ab * Prior exposure to any HCV direct antiviral agent (eg, HCV protease, polymerase, previous nonstructural protein 5A inhibitors) * Exposure to any investigational drug or placebo

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants Achieving Sustained Virologic Response at Follow-up Week 24 (SVR24) for Hepatitis C Virus (HCV) Genotype 2Follow-up Week 24SVR24 was defined as undetectable HCV RNA (HCV RNA \<lower limit of quantitation \[LLOQ\], target not detected \[TND\]) at follow-up Week 24. The LLOQ was 25 IU/mL, and \<LLOQ, TND was 10 IU/mL. HCV RNA levels were measured by the Roche COBAS® TaqMan® HCV Test version 2.0 from the central laboratory.
Percentage of Participants Achieving Sustained Virologic Response at Follow-up Week 24 (SVR24) for Hepatitis C Virus (HCV) Genotype 3Follow-up Week 24SVR24 was defined as undetectable HCV RNA (HCV RNA \<lower limit of quantitation \[LLOQ\], target not detected \[TND\]) at follow-up Week 24. The LLOQ was 25 IU/mL, and \<LLOQ, TND was 10 IU/mL. HCV RNA levels were measured by the Roche COBAS® TaqMan® HCV Test version 2.0 from the central laboratory.

Secondary

MeasureTime frameDescription
Percentage of Participants Achieving Complete Early Virologic Response (cEVR) at Week 12 for Hepatitis C Virus (HCV) Genotype 2Week 12cEVR was defined as undetectable HCV RNA (HCV RNA \<lower limit of quantitation \[LLOQ\], target not detected \[TND\]) at Week 12. The LLOQ was 25 IU/mL, and \<LLOQ, TND was 10 IU/mL. HCV RNA levels were measured by the Roche COBAS® TaqMan® HCV Test version 2.0 from the central laboratory.
Percentage of Participants Achieving Complete Early Virologic Response (cEVR) at Week 12 for Hepatitis C Virus (HCV) Genotype 3Week 12cEVR was defined as undetectable HCV RNA (HCV RNA \<lower limit of quantitation \[LLOQ\], target not detected \[TND\]) at Week 12. The LLOQ was 25 IU/mL, and \<LLOQ, TND was 10 IU/mL. HCV RNA levels were measured by the Roche COBAS® TaqMan® HCV Test version 2.0 from the central laboratory.
Percentage of Participants Achieving Sustained Virologic Response at Follow-up Week 12 (SVR12) for Hepatitis C Virus (HCV) Genotype 2Follow-up Week 12SVR12 was defined as undetectable HCV RNA (HCV RNA \<lower limit of quantitation \[LLOQ\], target not detected \[TND\]) at follow-up Week 12. The LLOQ was 25 IU/mL, and \<LLOQ, TND was 10 IU/mL. HCV RNA levels were measured by the Roche COBAS® TaqMan® HCV Test version 2.0 from the central laboratory.
Percentage of Participants Achieving Sustained Virologic Response at Follow-up Week 12 (SVR12) for Hepatitis C Virus (HCV) Genotype 3Follow-up Week 12SVR12 was defined as undetectable HCV RNA (HCV RNA \<lower limit of quantitation \[LLOQ\], target not detected \[TND\]) at follow-up Week 12. The LLOQ was 25 IU/mL, and \<LLOQ, TND was 10 IU/mL. HCV RNA levels were measured by the Roche COBAS® TaqMan® HCV Test version 2.0 from the central laboratory.
Percentage of Participants Achieving Rapid Virologic Response (RVR) at Week 4 for Hepatitis C Virus (HCV) Genotype 2Week 4RVR was defined as undetectable HCV RNA (HCV RNA \<lower limit of quantitation \[LLOQ\], target not detected \[TND\]) at Week 4. The LLOQ was 25 IU/mL, and \<LLOQ, TND was 10 IU/mL. HCV RNA levels were measured by the Roche COBAS® TaqMan® HCV Test version 2.0 from the central laboratory.
Number of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 3Baseline up to Week 48Virologic failure was defined as: 1. Virologic breakthrough: confirmed \>1 log10 increase in HCV RNA over nadir or confirmed RNA ≥lower limit of quantitation (LLOQ) after confirmed HCV RNA \<LLOQ, target not detected (TND) while on treatment 2. \<1 log10 decrease in HCV RNA from baseline at Week 4 of treatment 3. Failure to achieve early virologic response: \<2 log10 decrease in HCV RNA from baseline and HCV RNA ≥LLOQ at Week 12 of treatment 4. HCV RNA ≥LLOQ or \<LLOQ, target detected (TD) at the end of treatment (EOT) (including early discontinuation) 5. Relapse, defined as HCV RNA ≥LLOQ or \<LLOQ, TD during follow-up, after HCV RNA \<LLOQ, TND at EOT. The LLOQ was 25 IU/mL, and \<LLOQ, TND was 10 IU/mL. HCV RNA levels were measured by the Roche COBAS® TaqMan® HCV Test version 2.0 from the central laboratory.
Number of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), Discontinuations Due to AEs, and Treatment-related AEs and Who Died During Treatment PeriodBaseline (Day 1) up to 24 weeks (treatment period)AE was defined as any new unfavorable symptom, sign, or disease or worsening of a preexisting condition that does not has a causal relationship with treatment. SAE was defined as a medical event that at any dose resulted in death, persistent or significant disability/incapacity, or drug dependency/abuse; was life-threatening, an important medical event, or a congenital anomaly/birth defect; or required or prolonged hospitalization. Treatment-related AE was defined as an AE that had certain, probable, possible, or unknown relationship to study drug. Mild (Grade 1): awareness of event but easily tolerated; Moderate (Grade 2): discomfort enough to cause some interference with usual activity; Severe (Grade 3): inability to carry out usual activity; Very severe (Grade 4): debilitating, significantly incapacitates participant despite symptomatic therapy. Only Grade 2-4 treatment-related AEs were reported.
Number of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs) and Who Died During Follow-up PeriodFrom end of treatment period up to Week 48 (follow-up period)AE was defined as any new unfavorable symptom, sign, or disease or worsening of a preexisting condition that does not has a causal relationship with treatment. SAE was defined as a medical event that at any dose resulted in death, persistent or significant disability/incapacity, or drug dependency/abuse; was life-threatening, an important medical event, or a congenital anomaly/birth defect; or required or prolonged hospitalization.
Number of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 2Baseline up to Week 48Virologic failure was defined as: 1. Virologic breakthrough: confirmed \>1 log10 increase in HCV RNA over nadir or confirmed RNA ≥lower limit of quantitation (LLOQ) after confirmed HCV RNA \<LLOQ, target not detected (TND) while on treatment 2. \<1 log10 decrease in HCV RNA from baseline at Week 4 of treatment 3. Failure to achieve early virologic response: \<2 log10 decrease in HCV RNA from baseline and HCV RNA ≥LLOQ at Week 12 of treatment 4. HCV RNA ≥LLOQ or \<LLOQ, target detected (TD) at the end of treatment (EOT) (including early discontinuation) 5. Relapse, defined as HCV RNA ≥LLOQ or \<LLOQ, TD during follow-up, after HCV RNA \<LLOQ, TND at EOT. The LLOQ was 25 IU/mL, and \<LLOQ, TND was 10 IU/mL. HCV RNA levels were measured by the Roche COBAS® TaqMan® HCV Test version 2.0 from the central laboratory.
Percentage of Participants Achieving Rapid Virologic Response (RVR) at Week 4 for Hepatitis C Virus (HCV) Genotype 3Week 4RVR was defined as undetectable HCV RNA (HCV RNA \<lower limit of quantitation \[LLOQ\], target not detected \[TND\]) at Week 4. The LLOQ was 25 IU/mL, and \<LLOQ, TND was 10 IU/mL. HCV RNA levels were measured by the Roche COBAS® TaqMan® HCV Test version 2.0 from the central laboratory.

Countries

Australia, Canada, Denmark, France, Italy, United States

Participant flow

Pre-assignment details

A total of 196 participants were enrolled, of which 152 participants were randomized; remaining 44 participants did not meet study criteria. Of randomized participants:151 were treated; 1 participant withdrew consent.

Participants by arm

ArmCount
Dacalatasvir, 60 mg, 12-Week Cohort
Participants received daclatasvir tablets 60 mg orally, once daily, with pegylated-interferon alfa-2a (pegIFNα-2a) solution for injection 180 µg/0.5 mL subcutaneously, once weekly, and ribavirin tablets 400 mg orally, twice daily, up to 12 weeks.
50
Daclatasvir, 60 mg, 16-Week Cohort
Participants received daclatasvir tablets 60 mg orally, once daily, with pegIFNα-2a solution for injection 180 µg/0.5 mL subcutaneously, once weekly, and ribavirin tablets 400 mg orally, twice daily, up to 16 weeks.
50
Placebo
Participants received placebo matching with daclatasvir tablets orally, once daily, with pegIFNα-2a solution for injection 180 µg/0.5 mL subcutaneously, once weekly, and ribavirin tablets 400 mg orally, twice daily, up to 24 weeks.
51
Total151

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
Follow-up Period (up to Week 48)Lost to Follow-up144
Follow-up Period (up to Week 48)Other005
Follow-up Period (up to Week 48)Withdrawal by Subject021
Treatment Period (up to Week 24)Adverse Event312
Treatment Period (up to Week 24)Lack of Efficacy013
Treatment Period (up to Week 24)Lost to Follow-up020
Treatment Period (up to Week 24)Participant's request to discontinue122
Treatment Period (up to Week 24)Poor compliance/noncompliance001
Treatment Period (up to Week 24)Withdrawal by Subject101

Baseline characteristics

CharacteristicTotalDaclatasvir, 60 mg, 16-Week CohortDacalatasvir, 60 mg, 12-Week CohortPlacebo
Age, Continuous47.9 years
STANDARD_DEVIATION 9.09
47.5 years
STANDARD_DEVIATION 9.2
47.5 years
STANDARD_DEVIATION 8.42
48.8 years
STANDARD_DEVIATION 9.73
Cirrhosis Status
Absent
127 participants43 participants43 participants41 participants
Cirrhosis Status
Not Reported
5 participants3 participants0 participants2 participants
Cirrhosis Status
Present
19 participants4 participants7 participants8 participants
HCV RNA Distribution
<800,000 IU/mL
25 participants7 participants12 participants6 participants
HCV RNA Distribution
≥800,000 IU/mL
126 participants43 participants38 participants45 participants
Hepatitis C Virus (HCV) RNA (IU/mL)6.5 Log10 IU/mL
STANDARD_DEVIATION 0.69
6.6 Log10 IU/mL
STANDARD_DEVIATION 0.62
6.4 Log10 IU/mL
STANDARD_DEVIATION 0.82
6.6 Log10 IU/mL
STANDARD_DEVIATION 0.59
Randomization Stratum
HCV Genotype 2
71 participants23 participants24 participants24 participants
Randomization Stratum
HCV Genotype 3
80 participants27 participants26 participants27 participants
Sex: Female, Male
Female
55 Participants13 Participants18 Participants24 Participants
Sex: Female, Male
Male
96 Participants37 Participants32 Participants27 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —— / —
other
Total, other adverse events
49 / 5049 / 5048 / 510 / 490 / 470 / 49
serious
Total, serious adverse events
4 / 500 / 503 / 512 / 490 / 470 / 49

Outcome results

Primary

Percentage of Participants Achieving Sustained Virologic Response at Follow-up Week 24 (SVR24) for Hepatitis C Virus (HCV) Genotype 2

SVR24 was defined as undetectable HCV RNA (HCV RNA \<lower limit of quantitation \[LLOQ\], target not detected \[TND\]) at follow-up Week 24. The LLOQ was 25 IU/mL, and \<LLOQ, TND was 10 IU/mL. HCV RNA levels were measured by the Roche COBAS® TaqMan® HCV Test version 2.0 from the central laboratory.

Time frame: Follow-up Week 24

Population: All treated participants with hepatitis C virus genotype 2.

ArmMeasureValue (NUMBER)
Daclatasvir, 60 mg, 12-Week CohortPercentage of Participants Achieving Sustained Virologic Response at Follow-up Week 24 (SVR24) for Hepatitis C Virus (HCV) Genotype 283.3 percentage of participants
Daclatasvir, 60 mg, 16-Week CohortPercentage of Participants Achieving Sustained Virologic Response at Follow-up Week 24 (SVR24) for Hepatitis C Virus (HCV) Genotype 282.6 percentage of participants
PlaceboPercentage of Participants Achieving Sustained Virologic Response at Follow-up Week 24 (SVR24) for Hepatitis C Virus (HCV) Genotype 262.5 percentage of participants
80% CI: [4.9, 36.8]
80% CI: [3.9, 36.3]
Primary

Percentage of Participants Achieving Sustained Virologic Response at Follow-up Week 24 (SVR24) for Hepatitis C Virus (HCV) Genotype 3

SVR24 was defined as undetectable HCV RNA (HCV RNA \<lower limit of quantitation \[LLOQ\], target not detected \[TND\]) at follow-up Week 24. The LLOQ was 25 IU/mL, and \<LLOQ, TND was 10 IU/mL. HCV RNA levels were measured by the Roche COBAS® TaqMan® HCV Test version 2.0 from the central laboratory.

Time frame: Follow-up Week 24

Population: All treated participants with HCV genotype 3.

ArmMeasureValue (NUMBER)
Daclatasvir, 60 mg, 12-Week CohortPercentage of Participants Achieving Sustained Virologic Response at Follow-up Week 24 (SVR24) for Hepatitis C Virus (HCV) Genotype 369.2 percentage of participants
Daclatasvir, 60 mg, 16-Week CohortPercentage of Participants Achieving Sustained Virologic Response at Follow-up Week 24 (SVR24) for Hepatitis C Virus (HCV) Genotype 366.7 percentage of participants
PlaceboPercentage of Participants Achieving Sustained Virologic Response at Follow-up Week 24 (SVR24) for Hepatitis C Virus (HCV) Genotype 359.3 percentage of participants
80% CI: [-6.8, 26.7]
80% CI: [-9.4, 24.2]
Secondary

Number of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs) and Who Died During Follow-up Period

AE was defined as any new unfavorable symptom, sign, or disease or worsening of a preexisting condition that does not has a causal relationship with treatment. SAE was defined as a medical event that at any dose resulted in death, persistent or significant disability/incapacity, or drug dependency/abuse; was life-threatening, an important medical event, or a congenital anomaly/birth defect; or required or prolonged hospitalization.

Time frame: From end of treatment period up to Week 48 (follow-up period)

Population: All follow-up participants.

ArmMeasureGroupValue (NUMBER)
Daclatasvir, 60 mg, 12-Week CohortNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs) and Who Died During Follow-up PeriodSAEs2 participants
Daclatasvir, 60 mg, 12-Week CohortNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs) and Who Died During Follow-up PeriodAEs16 participants
Daclatasvir, 60 mg, 12-Week CohortNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs) and Who Died During Follow-up PeriodDeaths0 participants
Daclatasvir, 60 mg, 16-Week CohortNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs) and Who Died During Follow-up PeriodSAEs0 participants
Daclatasvir, 60 mg, 16-Week CohortNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs) and Who Died During Follow-up PeriodAEs12 participants
Daclatasvir, 60 mg, 16-Week CohortNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs) and Who Died During Follow-up PeriodDeaths0 participants
PlaceboNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs) and Who Died During Follow-up PeriodAEs11 participants
PlaceboNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs) and Who Died During Follow-up PeriodDeaths0 participants
PlaceboNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs) and Who Died During Follow-up PeriodSAEs0 participants
Secondary

Number of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), Discontinuations Due to AEs, and Treatment-related AEs and Who Died During Treatment Period

AE was defined as any new unfavorable symptom, sign, or disease or worsening of a preexisting condition that does not has a causal relationship with treatment. SAE was defined as a medical event that at any dose resulted in death, persistent or significant disability/incapacity, or drug dependency/abuse; was life-threatening, an important medical event, or a congenital anomaly/birth defect; or required or prolonged hospitalization. Treatment-related AE was defined as an AE that had certain, probable, possible, or unknown relationship to study drug. Mild (Grade 1): awareness of event but easily tolerated; Moderate (Grade 2): discomfort enough to cause some interference with usual activity; Severe (Grade 3): inability to carry out usual activity; Very severe (Grade 4): debilitating, significantly incapacitates participant despite symptomatic therapy. Only Grade 2-4 treatment-related AEs were reported.

Time frame: Baseline (Day 1) up to 24 weeks (treatment period)

Population: All treated participants.

ArmMeasureGroupValue (NUMBER)
Daclatasvir, 60 mg, 12-Week CohortNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), Discontinuations Due to AEs, and Treatment-related AEs and Who Died During Treatment PeriodAEs49 participants
Daclatasvir, 60 mg, 12-Week CohortNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), Discontinuations Due to AEs, and Treatment-related AEs and Who Died During Treatment PeriodDiscontinuations due to AEs4 participants
Daclatasvir, 60 mg, 12-Week CohortNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), Discontinuations Due to AEs, and Treatment-related AEs and Who Died During Treatment PeriodSAEs4 participants
Daclatasvir, 60 mg, 12-Week CohortNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), Discontinuations Due to AEs, and Treatment-related AEs and Who Died During Treatment PeriodGrade 2-4 Treatment-related AEs27 participants
Daclatasvir, 60 mg, 12-Week CohortNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), Discontinuations Due to AEs, and Treatment-related AEs and Who Died During Treatment PeriodDeaths0 participants
Daclatasvir, 60 mg, 16-Week CohortNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), Discontinuations Due to AEs, and Treatment-related AEs and Who Died During Treatment PeriodGrade 2-4 Treatment-related AEs22 participants
Daclatasvir, 60 mg, 16-Week CohortNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), Discontinuations Due to AEs, and Treatment-related AEs and Who Died During Treatment PeriodAEs49 participants
Daclatasvir, 60 mg, 16-Week CohortNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), Discontinuations Due to AEs, and Treatment-related AEs and Who Died During Treatment PeriodDiscontinuations due to AEs3 participants
Daclatasvir, 60 mg, 16-Week CohortNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), Discontinuations Due to AEs, and Treatment-related AEs and Who Died During Treatment PeriodSAEs0 participants
Daclatasvir, 60 mg, 16-Week CohortNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), Discontinuations Due to AEs, and Treatment-related AEs and Who Died During Treatment PeriodDeaths0 participants
PlaceboNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), Discontinuations Due to AEs, and Treatment-related AEs and Who Died During Treatment PeriodSAEs3 participants
PlaceboNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), Discontinuations Due to AEs, and Treatment-related AEs and Who Died During Treatment PeriodGrade 2-4 Treatment-related AEs30 participants
PlaceboNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), Discontinuations Due to AEs, and Treatment-related AEs and Who Died During Treatment PeriodDeaths0 participants
PlaceboNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), Discontinuations Due to AEs, and Treatment-related AEs and Who Died During Treatment PeriodAEs50 participants
PlaceboNumber of Participants With Adverse Events (AEs), Serious Adverse Events (SAEs), Discontinuations Due to AEs, and Treatment-related AEs and Who Died During Treatment PeriodDiscontinuations due to AEs2 participants
Secondary

Number of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 2

Virologic failure was defined as: 1. Virologic breakthrough: confirmed \>1 log10 increase in HCV RNA over nadir or confirmed RNA ≥lower limit of quantitation (LLOQ) after confirmed HCV RNA \<LLOQ, target not detected (TND) while on treatment 2. \<1 log10 decrease in HCV RNA from baseline at Week 4 of treatment 3. Failure to achieve early virologic response: \<2 log10 decrease in HCV RNA from baseline and HCV RNA ≥LLOQ at Week 12 of treatment 4. HCV RNA ≥LLOQ or \<LLOQ, target detected (TD) at the end of treatment (EOT) (including early discontinuation) 5. Relapse, defined as HCV RNA ≥LLOQ or \<LLOQ, TD during follow-up, after HCV RNA \<LLOQ, TND at EOT. The LLOQ was 25 IU/mL, and \<LLOQ, TND was 10 IU/mL. HCV RNA levels were measured by the Roche COBAS® TaqMan® HCV Test version 2.0 from the central laboratory.

Time frame: Baseline up to Week 48

Population: All treated participants with HCV genotype 2. Here, n signifies the number of participants evaluable for the respective category.

ArmMeasureGroupValue (NUMBER)
Daclatasvir, 60 mg, 12-Week CohortNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 2Virologic breakthrough (n=24,23,24)0 participants
Daclatasvir, 60 mg, 12-Week CohortNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 2HCV RNA ≥LLOQ or <LLOQ, TD at EOT (n=24,23,24)1 participants
Daclatasvir, 60 mg, 12-Week CohortNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 2<1 log10 decrease in HCV RNA at Week4 (n=24,23,24)0 participants
Daclatasvir, 60 mg, 12-Week CohortNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 2Relapse (n=23,21,22)1 participants
Daclatasvir, 60 mg, 16-Week CohortNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 2Relapse (n=23,21,22)0 participants
Daclatasvir, 60 mg, 16-Week CohortNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 2<1 log10 decrease in HCV RNA at Week4 (n=24,23,24)1 participants
Daclatasvir, 60 mg, 16-Week CohortNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 2HCV RNA ≥LLOQ or <LLOQ, TD at EOT (n=24,23,24)2 participants
Daclatasvir, 60 mg, 16-Week CohortNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 2Virologic breakthrough (n=24,23,24)1 participants
PlaceboNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 2Relapse (n=23,21,22)2 participants
PlaceboNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 2Virologic breakthrough (n=24,23,24)1 participants
PlaceboNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 2<1 log10 decrease in HCV RNA at Week4 (n=24,23,24)0 participants
PlaceboNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 2HCV RNA ≥LLOQ or <LLOQ, TD at EOT (n=24,23,24)1 participants
Secondary

Number of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 3

Virologic failure was defined as: 1. Virologic breakthrough: confirmed \>1 log10 increase in HCV RNA over nadir or confirmed RNA ≥lower limit of quantitation (LLOQ) after confirmed HCV RNA \<LLOQ, target not detected (TND) while on treatment 2. \<1 log10 decrease in HCV RNA from baseline at Week 4 of treatment 3. Failure to achieve early virologic response: \<2 log10 decrease in HCV RNA from baseline and HCV RNA ≥LLOQ at Week 12 of treatment 4. HCV RNA ≥LLOQ or \<LLOQ, target detected (TD) at the end of treatment (EOT) (including early discontinuation) 5. Relapse, defined as HCV RNA ≥LLOQ or \<LLOQ, TD during follow-up, after HCV RNA \<LLOQ, TND at EOT. The LLOQ was 25 IU/mL, and \<LLOQ, TND was 10 IU/mL. HCV RNA levels were measured by the Roche COBAS® TaqMan® HCV Test version 2.0 from the central laboratory.

Time frame: Baseline up to Week 48

Population: All treated participants with HCV genotype 3. Here, n signifies the number of participants evaluable for the respective category.

ArmMeasureGroupValue (NUMBER)
Daclatasvir, 60 mg, 12-Week CohortNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 3Relapse (n=25,24,21)6 participants
Daclatasvir, 60 mg, 12-Week CohortNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 3<1 log10 decrease in HCV RNA at Week4 (n=26,27,27)0 participants
Daclatasvir, 60 mg, 12-Week CohortNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 3HCV RNA ≥LLOQ or <LLOQ, TD at EOT (n=26,27,27)1 participants
Daclatasvir, 60 mg, 12-Week CohortNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 3Virologic breakthrough (n=26,27,27)0 participants
Daclatasvir, 60 mg, 16-Week CohortNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 3<1 log10 decrease in HCV RNA at Week4 (n=26,27,27)1 participants
Daclatasvir, 60 mg, 16-Week CohortNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 3HCV RNA ≥LLOQ or <LLOQ, TD at EOT (n=26,27,27)2 participants
Daclatasvir, 60 mg, 16-Week CohortNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 3Virologic breakthrough (n=26,27,27)0 participants
Daclatasvir, 60 mg, 16-Week CohortNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 3Relapse (n=25,24,21)6 participants
PlaceboNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 3HCV RNA ≥LLOQ or <LLOQ, TD at EOT (n=26,27,27)3 participants
PlaceboNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 3Virologic breakthrough (n=26,27,27)1 participants
PlaceboNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 3Relapse (n=25,24,21)3 participants
PlaceboNumber of Participants With Virologic Failure for Hepatitis C Virus (HCV) Genotype 3<1 log10 decrease in HCV RNA at Week4 (n=26,27,27)3 participants
Secondary

Percentage of Participants Achieving Complete Early Virologic Response (cEVR) at Week 12 for Hepatitis C Virus (HCV) Genotype 2

cEVR was defined as undetectable HCV RNA (HCV RNA \<lower limit of quantitation \[LLOQ\], target not detected \[TND\]) at Week 12. The LLOQ was 25 IU/mL, and \<LLOQ, TND was 10 IU/mL. HCV RNA levels were measured by the Roche COBAS® TaqMan® HCV Test version 2.0 from the central laboratory.

Time frame: Week 12

Population: All treated participants with HCV genotype 2.

ArmMeasureValue (NUMBER)
Daclatasvir, 60 mg, 12-Week CohortPercentage of Participants Achieving Complete Early Virologic Response (cEVR) at Week 12 for Hepatitis C Virus (HCV) Genotype 291.7 percentage of participants
Daclatasvir, 60 mg, 16-Week CohortPercentage of Participants Achieving Complete Early Virologic Response (cEVR) at Week 12 for Hepatitis C Virus (HCV) Genotype 282.6 percentage of participants
PlaceboPercentage of Participants Achieving Complete Early Virologic Response (cEVR) at Week 12 for Hepatitis C Virus (HCV) Genotype 275.0 percentage of participants
Secondary

Percentage of Participants Achieving Complete Early Virologic Response (cEVR) at Week 12 for Hepatitis C Virus (HCV) Genotype 3

cEVR was defined as undetectable HCV RNA (HCV RNA \<lower limit of quantitation \[LLOQ\], target not detected \[TND\]) at Week 12. The LLOQ was 25 IU/mL, and \<LLOQ, TND was 10 IU/mL. HCV RNA levels were measured by the Roche COBAS® TaqMan® HCV Test version 2.0 from the central laboratory.

Time frame: Week 12

Population: All treated participants with HCV genotype 3.

ArmMeasureValue (NUMBER)
Daclatasvir, 60 mg, 12-Week CohortPercentage of Participants Achieving Complete Early Virologic Response (cEVR) at Week 12 for Hepatitis C Virus (HCV) Genotype 380.8 percentage of participants
Daclatasvir, 60 mg, 16-Week CohortPercentage of Participants Achieving Complete Early Virologic Response (cEVR) at Week 12 for Hepatitis C Virus (HCV) Genotype 388.9 percentage of participants
PlaceboPercentage of Participants Achieving Complete Early Virologic Response (cEVR) at Week 12 for Hepatitis C Virus (HCV) Genotype 359.3 percentage of participants
Secondary

Percentage of Participants Achieving Rapid Virologic Response (RVR) at Week 4 for Hepatitis C Virus (HCV) Genotype 2

RVR was defined as undetectable HCV RNA (HCV RNA \<lower limit of quantitation \[LLOQ\], target not detected \[TND\]) at Week 4. The LLOQ was 25 IU/mL, and \<LLOQ, TND was 10 IU/mL. HCV RNA levels were measured by the Roche COBAS® TaqMan® HCV Test version 2.0 from the central laboratory.

Time frame: Week 4

Population: All treated participants with HCV genotype 2.

ArmMeasureValue (NUMBER)
Daclatasvir, 60 mg, 12-Week CohortPercentage of Participants Achieving Rapid Virologic Response (RVR) at Week 4 for Hepatitis C Virus (HCV) Genotype 287.5 percentage of participants
Daclatasvir, 60 mg, 16-Week CohortPercentage of Participants Achieving Rapid Virologic Response (RVR) at Week 4 for Hepatitis C Virus (HCV) Genotype 273.9 percentage of participants
PlaceboPercentage of Participants Achieving Rapid Virologic Response (RVR) at Week 4 for Hepatitis C Virus (HCV) Genotype 241.7 percentage of participants
Secondary

Percentage of Participants Achieving Rapid Virologic Response (RVR) at Week 4 for Hepatitis C Virus (HCV) Genotype 3

RVR was defined as undetectable HCV RNA (HCV RNA \<lower limit of quantitation \[LLOQ\], target not detected \[TND\]) at Week 4. The LLOQ was 25 IU/mL, and \<LLOQ, TND was 10 IU/mL. HCV RNA levels were measured by the Roche COBAS® TaqMan® HCV Test version 2.0 from the central laboratory.

Time frame: Week 4

Population: All treated participants with HCV genotype 3.

ArmMeasureValue (NUMBER)
Daclatasvir, 60 mg, 12-Week CohortPercentage of Participants Achieving Rapid Virologic Response (RVR) at Week 4 for Hepatitis C Virus (HCV) Genotype 384.6 percentage of participants
Daclatasvir, 60 mg, 16-Week CohortPercentage of Participants Achieving Rapid Virologic Response (RVR) at Week 4 for Hepatitis C Virus (HCV) Genotype 374.1 percentage of participants
PlaceboPercentage of Participants Achieving Rapid Virologic Response (RVR) at Week 4 for Hepatitis C Virus (HCV) Genotype 337.0 percentage of participants
Secondary

Percentage of Participants Achieving Sustained Virologic Response at Follow-up Week 12 (SVR12) for Hepatitis C Virus (HCV) Genotype 2

SVR12 was defined as undetectable HCV RNA (HCV RNA \<lower limit of quantitation \[LLOQ\], target not detected \[TND\]) at follow-up Week 12. The LLOQ was 25 IU/mL, and \<LLOQ, TND was 10 IU/mL. HCV RNA levels were measured by the Roche COBAS® TaqMan® HCV Test version 2.0 from the central laboratory.

Time frame: Follow-up Week 12

Population: All treated participants with HCV genotype 2.

ArmMeasureValue (NUMBER)
Daclatasvir, 60 mg, 12-Week CohortPercentage of Participants Achieving Sustained Virologic Response at Follow-up Week 12 (SVR12) for Hepatitis C Virus (HCV) Genotype 287.5 percentage of participants
Daclatasvir, 60 mg, 16-Week CohortPercentage of Participants Achieving Sustained Virologic Response at Follow-up Week 12 (SVR12) for Hepatitis C Virus (HCV) Genotype 282.6 percentage of participants
PlaceboPercentage of Participants Achieving Sustained Virologic Response at Follow-up Week 12 (SVR12) for Hepatitis C Virus (HCV) Genotype 270.8 percentage of participants
Secondary

Percentage of Participants Achieving Sustained Virologic Response at Follow-up Week 12 (SVR12) for Hepatitis C Virus (HCV) Genotype 3

SVR12 was defined as undetectable HCV RNA (HCV RNA \<lower limit of quantitation \[LLOQ\], target not detected \[TND\]) at follow-up Week 12. The LLOQ was 25 IU/mL, and \<LLOQ, TND was 10 IU/mL. HCV RNA levels were measured by the Roche COBAS® TaqMan® HCV Test version 2.0 from the central laboratory.

Time frame: Follow-up Week 12

Population: All treated participants with HCV genotype 3.

ArmMeasureValue (NUMBER)
Daclatasvir, 60 mg, 12-Week CohortPercentage of Participants Achieving Sustained Virologic Response at Follow-up Week 12 (SVR12) for Hepatitis C Virus (HCV) Genotype 369.2 percentage of participants
Daclatasvir, 60 mg, 16-Week CohortPercentage of Participants Achieving Sustained Virologic Response at Follow-up Week 12 (SVR12) for Hepatitis C Virus (HCV) Genotype 377.8 percentage of participants
PlaceboPercentage of Participants Achieving Sustained Virologic Response at Follow-up Week 12 (SVR12) for Hepatitis C Virus (HCV) Genotype 351.9 percentage of participants

Source: ClinicalTrials.gov · Data processed: Mar 19, 2026