Skip to content

Study to Determine the Safety and Effectiveness of Antiviral Combination Therapy to Treat Hepatitis C Virus (HCV) in Patients Who Have Previously Not Received the Standard of Care

Parallel, Open-Label, Randomized Study to Evaluate the Safety, Pharmacokinetics, and Pharmacodynamics of PSI-7977 in Combination With BMS-790052 With or Without Ribavirin in Treatment Naive Subjects Chronically Infected With Hepatitis C Virus Genotypes 1, 2, or 3

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01359644
Enrollment
350
Registered
2011-05-25
Start date
2011-06-30
Completion date
2013-10-31
Last updated
2015-10-23

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

Conditions

Chronic Hepatitis C

Brief summary

The purpose of the study is to determine whether therapy with the combination of PSI-7977 and daclatasvir (BMS-790052) with or without ribavirin is effective in treating hepatitis C virus (HCV) infection when given for 12 or 24 weeks as measured by sustained virologic response with undetectable HCV RNA 12 weeks post treatment

Interventions

Tablets, oral, 400 mg, once daily

DRUGDaclatasvir

Tablets, oral, 60 mg, once daily

DRUGRibavirin

Tablets, oral, 200 mg

Sponsors

Pharmasset
CollaboratorINDUSTRY
Bristol-Myers Squibb
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Eligibility

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

Inclusion criteria

* Men and women, ages 18 to 70 years. * Participants infected with hepatitis C virus (HCV) genotype 1, 2, or 3, with no previous exposure to an interferon formulation (ie, interferon-alpha, pegylated interferon-alpha) ribavirin, or other HCV-specific direct-acting antiviral (including daclatasvir and PSI-7977). * Patients should have chronic hepatitis C genotype 1a, 1b, 2, or 3 as documented by: positive test results for anti-HCV antibody; HCV RNA; or a HCV genotype at least 6 months prior to screening, and HCV RNA and anti-HCV antibody at the time of screening.

Exclusion criteria

* Evidence of a medical condition associate with chronic liver disease other than HCV. * History of variceal bleeding, hepatic encephalopathy, or ascites requiring management with diuretics or paracentesis. * History of hemophilia. * History of torsade de pointes. * Current or known history of cancer (except in situ carcinoma of the cervix or adequately treated basal or squamous cell carcinoma of the skin) within 5 years prior to enrollment. * History of gastrointestinal disease or surgical procedure (except cholecystectomy). * History of clinically significant cardiac disease. * Blood transfusion within 4 weeks prior to study drug administration. * Poor venous access. * Any other medical, psychiatric, and/or social reason which, in the opinion of the Investigator, would make the candidate inappropriate for participation in this study.

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With Sustained Virologic Response at Post Treatment Week 12 (SVR12)Follow-up Week 12SVR12 was defined as hepatitis C virus (HCV) RNA less than the lower limit of quantitation, target detected or target not detected (ie, HCV RNA \<25 IU/mL) at follow-up Week 12. DCV=daclatasvir, SOF=sofosbuvir.

Secondary

MeasureTime frameDescription
Percentage of Participants With Viral Breakthrough During the Treatment PeriodFirst dose of study drug (Day 1) up to end of treatment period (up to 12 or 24 weeks, depending on treatment group)Viral breakthrough is defined as any confirmed increase in viral load ≥1 log from nadir or any confirmed hepatitis C virus RNA levels ≥25 IU/mL on or after Week 8.
Percentage of Participants Who Experienced Viral Relapse During Follow-up PeriodDay 1 of follow-up period (Week 13 or 25, depending on treatment group) to end of follow-up period (up to 48 weeks)Viral relapse during follow-up is defined as any confirmed quantifiable hepatitis C virus (HCV) RNA ≥25 IU/mL with HCV RNA levels less than the lower limit of quantitation, target detected or target not detected, ie, HCV RNA \<25 IU/mL at the end of treatment.
Percentage of Participants With Sustained Virologic Response at Post Treatment Week 24 (SVR24)Follow-up Week 24SVR24 was defined as participant's hepatitis C virus RNA less than the lower limit of quantitation, target detected or target not detected at follow-up Week 24. DCV=daclatasvir, SOF=sofosbuvir.
Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyFirst dose of study drug (Day 1) up to the start of rescue therapy (12 or 24 weeks, depending on treatment group)AE was defined as any new unfavorable symptom, sign, or disease or worsening of a preexisting condition that does not necessarily have 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. Based on the severity, AEs were categorized as Grade (Gr) 1=Mild, Gr 2=Moderate, Gr 3=Severe, Gr 4=Very severe.
Number of Participants Who Died and With Serious Adverse Events (SAEs), Grade 3-4 Adverse Events (AEs), and Grade 3-4 Abnormalities on Laboratory Test Results During Follow-up PeriodAEs: From Day 1 of follow-up period (Week 13 or 25) up to study discharge (up to 72 weeks). SAEs: From Day 1 of follow-up period (Week 13 or 25) up to 30 days after study discharge (up to 74 weeks)AE was defined as any new unfavorable symptom, sign, or disease or worsening of a preexisting condition that does not necessarily have 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. Based on the severity, AEs were categorized as Grade (Gr) 1=Mild, Gr 2=Moderate, Gr 3=Severe, Gr 4=Very severe
Change From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Baseline, Follow-up week 24Change from baseline in log10 HCV RNA at scheduled sampling time.

Countries

Puerto Rico, United States

Participant flow

Recruitment details

The study was conducted at 18 centres in 2 countries.

Pre-assignment details

A total of 350 participants were enrolled, and 211 were randomized and received study drug.

Participants by arm

ArmCount
Treatment A: Sofosbuvir + Daclatasvir
Participants with hepatitis C virus genotype 1a or 1b received sofosbuvir, 400 mg, once daily for 7 days and then added daclatasvir, 60 mg, once daily for 24 weeks.
15
Treatment: Sofosbuvir + Daclatasvir
Participants with genotype 2 or 3 received sofosbuvir, 400 mg, once daily for 7 days and then added daclatasvir, 60 mg, once daily for 24 weeks.
16
Treatment C: Sofosbuvir + Daclatasvir
Participants with genotype 1a or 1b received sofosbuvir, 400 mg, once daily and daclatasvir, 60 mg, once daily for 24 weeks.
14
Treatment D: Sofosbuvir + Daclatasvir
Participants with genotype-2 or -3 received sofosbuvir, 400 mg, once daily and daclatasvir, 60 mg, once daily for 24 weeks..
14
Treatment E: Sofosbuvir +Daclatasvir + Ribavirin
Participants with genotype 1a or 1b received sofosbuvir, 400 mg, once daily; daclatasvir, 60 mg, once daily for 24 weeks; and ribavirin in a total daily dose of 1000 mg (2 200-mg tablets AM and 3 200-mg tablets PM) for participants weighing \<75 kg and a total daily dose of 1200 mg (3 200-mg tablets AM and 3 200-mg tablets PM) for participants weighing ≥75 kg for 24 weeks.
15
Treatment F: Sofosbuvir + Daclatasvir + Ribavirin
Participants with genotype 2 or 3 received sofosbuvir, 400 mg, once daily; daclatasvir, 60 mg, once daily for 24 weeks; and ribavarin in total daily dose of 800 mg (2 200-mg tablets AM and 2 200-mg tablets PM) for 24 weeks.
14
Treatment G: Sofosbuvir + Daclatasvir
Participants with genotype1 a or 1b received sofosbuvir, 400 mg, once daily and daclatasvir, 60 mg, once daily for 12 weeks..
41
Treatment H: Sofosbuvir +Daclatasvir + Ribavirin
Participants with genotype 1a or 1b received sofosbuvir, 400 mg, once daily, daclatasvir, 60 mg, once daily for 12 weeks and ribavirin (in a total daily dose of 1000 mg (2 200-mg tablets AM and 3 200-mg tablets PM for participants weighing \<75 kg and a total daily dose of 1200 mg (3 200-mg tablets AM and 3 200-mg tablets PM for participants weighing ≥ 75 kg) for 12 weeks.
41
Treatment I: Sofosbuvir + Daclatasvir
Participants with genotype 1a or 1b who experienced telaprevir/boceprevir treatment failure received sofosbuvir, 400 mg once daily and daclatasvir, 60 mg, once daily for 24 weeks.
21
Treatment J: Sofosbuvir +Daclatasvir +Ribavirin
Participants with genotype 1a or 1b who experienced telaprevir/boceprevir treatment failure received sofosbuvir, 400 mg once daily, daclatasvir, 60 mg, once daily for 24 weeks and ribavarin in a total daily dose of 1000 mg (2 200-mg tablets AM and 3 200-mg tablets PM for participants weighing \<75 kg) and a total daily dose of 1200 mg (3 200-mg tablets AM and 3 200-mg tablets PM for participants weighing ≥75 kg) for 24 weeks.
20
Total211

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005FG006FG007FG008FG009
Follow-up PeriodLost to Follow-up0000001200
Follow-up PeriodWithdrawal by Subject0000010000
Treatment PeriodAdverse Event0010010000
Treatment PeriodLack of Efficacy0100000000
Treatment PeriodLost to Follow-up0000010000

Baseline characteristics

CharacteristicTreatment A: Sofosbuvir + DaclatasvirTreatment: Sofosbuvir + DaclatasvirTreatment C: Sofosbuvir + DaclatasvirTreatment D: Sofosbuvir + DaclatasvirTreatment E: Sofosbuvir +Daclatasvir + RibavirinTreatment F: Sofosbuvir + Daclatasvir + RibavirinTreatment G: Sofosbuvir + DaclatasvirTreatment H: Sofosbuvir +Daclatasvir + RibavirinTreatment I: Sofosbuvir + DaclatasvirTreatment J: Sofosbuvir +Daclatasvir +RibavirinTotal
Age, Continuous52.1 years
STANDARD_DEVIATION 10.18
50.6 years
STANDARD_DEVIATION 8.53
52.7 years
STANDARD_DEVIATION 7.39
49.7 years
STANDARD_DEVIATION 10.49
50.9 years
STANDARD_DEVIATION 11.72
48.8 years
STANDARD_DEVIATION 12.27
50.9 years
STANDARD_DEVIATION 11.56
53.1 years
STANDARD_DEVIATION 9.53
56.6 years
STANDARD_DEVIATION 9.89
52.6 years
STANDARD_DEVIATION 10.89
52.0 years
STANDARD_DEVIATION 10.37
Age, Customized
<65 years
15 participants15 participants14 participants13 participants15 participants13 participants39 participants38 participants18 participants19 participants199 participants
Age, Customized
>= 65 years
0 participants1 participants0 participants1 participants0 participants1 participants2 participants3 participants3 participants1 participants12 participants
Sex: Female, Male
Female
8 Participants5 Participants5 Participants8 Participants8 Participants9 Participants21 Participants20 Participants8 Participants8 Participants100 Participants
Sex: Female, Male
Male
7 Participants11 Participants9 Participants6 Participants7 Participants5 Participants20 Participants21 Participants13 Participants12 Participants111 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
EG006
affected / at risk
EG007
affected / at risk
EG008
affected / at risk
EG009
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —— / —— / —— / —— / —— / —— / —— / —
other
Total, other adverse events
0 / 150 / 160 / 140 / 140 / 150 / 140 / 410 / 410 / 210 / 20
serious
Total, serious adverse events
2 / 150 / 162 / 143 / 142 / 152 / 141 / 411 / 410 / 212 / 20

Outcome results

Primary

Percentage of Participants With Sustained Virologic Response at Post Treatment Week 12 (SVR12)

SVR12 was defined as hepatitis C virus (HCV) RNA less than the lower limit of quantitation, target detected or target not detected (ie, HCV RNA \<25 IU/mL) at follow-up Week 12. DCV=daclatasvir, SOF=sofosbuvir.

Time frame: Follow-up Week 12

Population: The analysis was performed in all treated participants who received at least 1 dose of active study therapy. The 'n' signifies those participants evaluable for this measure at specified time points for each group, respectively.

ArmMeasureGroupValue (NUMBER)
Treatment-naive Participants With Genotype 1Percentage of Participants With Sustained Virologic Response at Post Treatment Week 12 (SVR12)DCV/SOF without ribavirin (n=70, 30, 21)100.0 Percentage of participants
Treatment-naive Participants With Genotype 1Percentage of Participants With Sustained Virologic Response at Post Treatment Week 12 (SVR12)DCV/SOF with ribavirin (n=56, 14, 20)96.4 Percentage of participants
Treatment-naive Participants With Genotype 1Percentage of Participants With Sustained Virologic Response at Post Treatment Week 12 (SVR12)DCF/SOF All98.4 Percentage of participants
Treatment-naive Participants With Genotype 2 or 3Percentage of Participants With Sustained Virologic Response at Post Treatment Week 12 (SVR12)DCV/SOF without ribavirin (n=70, 30, 21)93.3 Percentage of participants
Treatment-naive Participants With Genotype 2 or 3Percentage of Participants With Sustained Virologic Response at Post Treatment Week 12 (SVR12)DCV/SOF with ribavirin (n=56, 14, 20)85.7 Percentage of participants
Treatment-naive Participants With Genotype 2 or 3Percentage of Participants With Sustained Virologic Response at Post Treatment Week 12 (SVR12)DCF/SOF All90.9 Percentage of participants
Telaprevir or Boceprevir Failures With Genotype 1Percentage of Participants With Sustained Virologic Response at Post Treatment Week 12 (SVR12)DCV/SOF with ribavirin (n=56, 14, 20)95.0 Percentage of participants
Telaprevir or Boceprevir Failures With Genotype 1Percentage of Participants With Sustained Virologic Response at Post Treatment Week 12 (SVR12)DCF/SOF All97.6 Percentage of participants
Telaprevir or Boceprevir Failures With Genotype 1Percentage of Participants With Sustained Virologic Response at Post Treatment Week 12 (SVR12)DCV/SOF without ribavirin (n=70, 30, 21)100.0 Percentage of participants
Secondary

Change From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24

Change from baseline in log10 HCV RNA at scheduled sampling time.

Time frame: Baseline, Follow-up week 24

Population: The analysis was performed in all treated participants who received at least 1 dose of active study therapy.

ArmMeasureGroupValue (MEAN)Dispersion
Treatment-naive Participants With Genotype 1Change From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Change at Follow-up week 24-5.19 IU/mLStandard Deviation 1.478
Treatment-naive Participants With Genotype 1Change From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Baseline1.28 IU/mLStandard Deviation 1.258
Treatment-naive Participants With Genotype 2 or 3Change From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Baseline0.95 IU/mLStandard Deviation 0
Treatment-naive Participants With Genotype 2 or 3Change From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Change at Follow-up week 24-5.23 IU/mLStandard Deviation 1.601
Telaprevir or Boceprevir Failures With Genotype 1Change From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Baseline0.95 IU/mLStandard Deviation 0
Telaprevir or Boceprevir Failures With Genotype 1Change From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Change at Follow-up week 24-5.67 IU/mLStandard Deviation 0.336
Treatment D: Sofosbuvir + DaclatasvirChange From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Change at Follow-up week 24-5.83 IU/mLStandard Deviation 0.509
Treatment D: Sofosbuvir + DaclatasvirChange From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Baseline0.98 IU/mLStandard Deviation 0.114
Treatment E: Sofosbuvir + Daclatasvir + RibavirinChange From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Baseline0.95 IU/mLStandard Deviation 0
Treatment E: Sofosbuvir + Daclatasvir + RibavirinChange From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Change at Follow-up week 24-5.77 IU/mLStandard Deviation 0.583
Treatment F: Sofosbuvir + Daclatasvir + RibavirinChange From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Change at Follow-up week 24-5.61 IU/mLStandard Deviation 0.61
Treatment F: Sofosbuvir + Daclatasvir + RibavirinChange From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Baseline0.95 IU/mLStandard Deviation 0
Treatment G: Sofosbuvir + DaclatasvirChange From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Change at Follow-up week 24-5.19 IU/mLStandard Deviation 0.49
Treatment G: Sofosbuvir + DaclatasvirChange From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Baseline0.95 IU/mLStandard Deviation 0
Treatment H: Sofosbuvir + Daclatasvir + RibavirinChange From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Change at Follow-up week 24-5.48 IU/mLStandard Deviation 0.576
Treatment H: Sofosbuvir + Daclatasvir + RibavirinChange From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Baseline0.95 IU/mLStandard Deviation 0
Treatment I: Sofosbuvir + DaclatasvirChange From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Baseline0.95 IU/mLStandard Deviation 0
Treatment I: Sofosbuvir + DaclatasvirChange From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Change at Follow-up week 24-5.39 IU/mLStandard Deviation 0.386
Treatment J: Sofosbuvir + Daclatasvir + RibavirinChange From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Change at Follow-up week 24-5.36 IU/mLStandard Deviation 0.38
Treatment J: Sofosbuvir + Daclatasvir + RibavirinChange From Baseline in log10 Hepatitis C Virus (HCV) RNA at Follow-up Week 24Baseline0.95 IU/mLStandard Deviation 0
Secondary

Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue Therapy

AE was defined as any new unfavorable symptom, sign, or disease or worsening of a preexisting condition that does not necessarily have 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. Based on the severity, AEs were categorized as Grade (Gr) 1=Mild, Gr 2=Moderate, Gr 3=Severe, Gr 4=Very severe.

Time frame: First dose of study drug (Day 1) up to the start of rescue therapy (12 or 24 weeks, depending on treatment group)

Population: All participants who received at least 1 dose of study drug.

ArmMeasureGroupValue (NUMBER)
Treatment-naive Participants With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyDeaths0 Participants
Treatment-naive Participants With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapySAEs1 Participants
Treatment-naive Participants With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyAEs leading to discontinuation0 Participants
Treatment-naive Participants With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyGr 3 Phosporus3 Participants
Treatment-naive Participants With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyGr 3 Fasting serum glucose0 Participants
Treatment-naive Participants With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyGr 3 Serum glucose0 Participants
Treatment-naive Participants With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyGr 3 Total cholesterol1 Participants
Treatment-naive Participants With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyGr 3 Uric acid1 Participants
Treatment-naive Participants With Genotype 2 or 3Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyGr 3 Serum glucose2 Participants
Treatment-naive Participants With Genotype 2 or 3Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyGr 3 Fasting serum glucose1 Participants
Treatment-naive Participants With Genotype 2 or 3Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapySAEs6 Participants
Treatment-naive Participants With Genotype 2 or 3Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyGr 3 Uric acid0 Participants
Treatment-naive Participants With Genotype 2 or 3Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyGr 3 Total cholesterol0 Participants
Treatment-naive Participants With Genotype 2 or 3Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyGr 3 Phosporus1 Participants
Treatment-naive Participants With Genotype 2 or 3Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyAEs leading to discontinuation1 Participants
Treatment-naive Participants With Genotype 2 or 3Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyDeaths0 Participants
Telaprevir or Boceprevir Failures With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyGr 3 Total cholesterol0 Participants
Telaprevir or Boceprevir Failures With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyAEs leading to discontinuation0 Participants
Telaprevir or Boceprevir Failures With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyGr 3 Phosporus0 Participants
Telaprevir or Boceprevir Failures With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyGr 3 Fasting serum glucose1 Participants
Telaprevir or Boceprevir Failures With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyGr 3 Serum glucose0 Participants
Telaprevir or Boceprevir Failures With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyGr 3 Uric acid0 Participants
Telaprevir or Boceprevir Failures With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyDeaths0 Participants
Telaprevir or Boceprevir Failures With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapySAEs1 Participants
Treatment D: Sofosbuvir + DaclatasvirNumber of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyAEs leading to discontinuation1 Participants
Treatment D: Sofosbuvir + DaclatasvirNumber of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyGr 3 Phosporus1 Participants
Treatment D: Sofosbuvir + DaclatasvirNumber of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapySAEs7 Participants
Treatment D: Sofosbuvir + DaclatasvirNumber of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyDeaths0 Participants
Treatment D: Sofosbuvir + DaclatasvirNumber of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyGr 3 Fasting serum glucose2 Participants
Treatment D: Sofosbuvir + DaclatasvirNumber of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyGr 3 Uric acid0 Participants
Treatment D: Sofosbuvir + DaclatasvirNumber of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyGr 3 Total cholesterol1 Participants
Treatment D: Sofosbuvir + DaclatasvirNumber of Participants Who Died and With Serious Adverse Events (SAEs) and Grade 3-4 Adverse Events (AEs), During the Treatment Period Prior to Addition of Rescue TherapyGr 3 Serum glucose1 Participants
Secondary

Number of Participants Who Died and With Serious Adverse Events (SAEs), Grade 3-4 Adverse Events (AEs), and Grade 3-4 Abnormalities on Laboratory Test Results During Follow-up Period

AE was defined as any new unfavorable symptom, sign, or disease or worsening of a preexisting condition that does not necessarily have 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. Based on the severity, AEs were categorized as Grade (Gr) 1=Mild, Gr 2=Moderate, Gr 3=Severe, Gr 4=Very severe

Time frame: AEs: From Day 1 of follow-up period (Week 13 or 25) up to study discharge (up to 72 weeks). SAEs: From Day 1 of follow-up period (Week 13 or 25) up to 30 days after study discharge (up to 74 weeks)

Population: All participants who received at least 1 dose of study drug and entered follow-up period

ArmMeasureGroupValue (NUMBER)
Treatment-naive Participants With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs), Grade 3-4 Adverse Events (AEs), and Grade 3-4 Abnormalities on Laboratory Test Results During Follow-up PeriodDeaths0 Participants
Treatment-naive Participants With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs), Grade 3-4 Adverse Events (AEs), and Grade 3-4 Abnormalities on Laboratory Test Results During Follow-up PeriodGrade 3-4 Lab Abnormalities: Serum glucose1 Participants
Treatment-naive Participants With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs), Grade 3-4 Adverse Events (AEs), and Grade 3-4 Abnormalities on Laboratory Test Results During Follow-up PeriodSAEs2 Participants
Treatment-naive Participants With Genotype 2 or 3Number of Participants Who Died and With Serious Adverse Events (SAEs), Grade 3-4 Adverse Events (AEs), and Grade 3-4 Abnormalities on Laboratory Test Results During Follow-up PeriodDeaths0 Participants
Treatment-naive Participants With Genotype 2 or 3Number of Participants Who Died and With Serious Adverse Events (SAEs), Grade 3-4 Adverse Events (AEs), and Grade 3-4 Abnormalities on Laboratory Test Results During Follow-up PeriodGrade 3-4 Lab Abnormalities: Serum glucose0 Participants
Treatment-naive Participants With Genotype 2 or 3Number of Participants Who Died and With Serious Adverse Events (SAEs), Grade 3-4 Adverse Events (AEs), and Grade 3-4 Abnormalities on Laboratory Test Results During Follow-up PeriodSAEs4 Participants
Telaprevir or Boceprevir Failures With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs), Grade 3-4 Adverse Events (AEs), and Grade 3-4 Abnormalities on Laboratory Test Results During Follow-up PeriodSAEs2 Participants
Telaprevir or Boceprevir Failures With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs), Grade 3-4 Adverse Events (AEs), and Grade 3-4 Abnormalities on Laboratory Test Results During Follow-up PeriodDeaths0 Participants
Telaprevir or Boceprevir Failures With Genotype 1Number of Participants Who Died and With Serious Adverse Events (SAEs), Grade 3-4 Adverse Events (AEs), and Grade 3-4 Abnormalities on Laboratory Test Results During Follow-up PeriodGrade 3-4 Lab Abnormalities: Serum glucose0 Participants
Treatment D: Sofosbuvir + DaclatasvirNumber of Participants Who Died and With Serious Adverse Events (SAEs), Grade 3-4 Adverse Events (AEs), and Grade 3-4 Abnormalities on Laboratory Test Results During Follow-up PeriodDeaths0 Participants
Treatment D: Sofosbuvir + DaclatasvirNumber of Participants Who Died and With Serious Adverse Events (SAEs), Grade 3-4 Adverse Events (AEs), and Grade 3-4 Abnormalities on Laboratory Test Results During Follow-up PeriodGrade 3-4 Lab Abnormalities: Serum glucose0 Participants
Treatment D: Sofosbuvir + DaclatasvirNumber of Participants Who Died and With Serious Adverse Events (SAEs), Grade 3-4 Adverse Events (AEs), and Grade 3-4 Abnormalities on Laboratory Test Results During Follow-up PeriodSAEs4 Participants
Secondary

Percentage of Participants Who Experienced Viral Relapse During Follow-up Period

Viral relapse during follow-up is defined as any confirmed quantifiable hepatitis C virus (HCV) RNA ≥25 IU/mL with HCV RNA levels less than the lower limit of quantitation, target detected or target not detected, ie, HCV RNA \<25 IU/mL at the end of treatment.

Time frame: Day 1 of follow-up period (Week 13 or 25, depending on treatment group) to end of follow-up period (up to 48 weeks)

Population: The analysis was performed in all treated participants who received at least 1 dose of active study therapy. The 'n' signifies those participants evaluable for this measure at specified time points for each group, respectively.

ArmMeasureGroupValue (NUMBER)
Treatment-naive Participants With Genotype 1Percentage of Participants Who Experienced Viral Relapse During Follow-up PeriodDCV/SOF with ribavirin (n=56, 14, 20)0 Percentage of participants
Treatment-naive Participants With Genotype 1Percentage of Participants Who Experienced Viral Relapse During Follow-up PeriodDCV/SOF without ribavirin (n=70, 30, 21)1.4 Percentage of participants
Treatment-naive Participants With Genotype 2 or 3Percentage of Participants Who Experienced Viral Relapse During Follow-up PeriodDCV/SOF with ribavirin (n=56, 14, 20)0 Percentage of participants
Treatment-naive Participants With Genotype 2 or 3Percentage of Participants Who Experienced Viral Relapse During Follow-up PeriodDCV/SOF without ribavirin (n=70, 30, 21)3.3 Percentage of participants
Telaprevir or Boceprevir Failures With Genotype 1Percentage of Participants Who Experienced Viral Relapse During Follow-up PeriodDCV/SOF with ribavirin (n=56, 14, 20)0 Percentage of participants
Telaprevir or Boceprevir Failures With Genotype 1Percentage of Participants Who Experienced Viral Relapse During Follow-up PeriodDCV/SOF without ribavirin (n=70, 30, 21)0 Percentage of participants
Secondary

Percentage of Participants With Sustained Virologic Response at Post Treatment Week 24 (SVR24)

SVR24 was defined as participant's hepatitis C virus RNA less than the lower limit of quantitation, target detected or target not detected at follow-up Week 24. DCV=daclatasvir, SOF=sofosbuvir.

Time frame: Follow-up Week 24

Population: The analysis was performed in all treated participants who received at least 1 dose of active study therapy. Here the 'n' signifies those participants evaluable for this measure at specified time points for each group, respectively.

ArmMeasureGroupValue (NUMBER)
Treatment-naive Participants With Genotype 1Percentage of Participants With Sustained Virologic Response at Post Treatment Week 24 (SVR24)DCV/SOF All95.2 Percentage of participants
Treatment-naive Participants With Genotype 1Percentage of Participants With Sustained Virologic Response at Post Treatment Week 24 (SVR24)DCV/SOF with ribavirin (n=56, 14, 20)94.6 Percentage of participants
Treatment-naive Participants With Genotype 1Percentage of Participants With Sustained Virologic Response at Post Treatment Week 24 (SVR24)DCV/SOF without ribavirin (n=70, 30, 21)95.7 Percentage of participants
Treatment-naive Participants With Genotype 2 or 3Percentage of Participants With Sustained Virologic Response at Post Treatment Week 24 (SVR24)DCV/SOF without ribavirin (n=70, 30, 21)93.3 Percentage of participants
Treatment-naive Participants With Genotype 2 or 3Percentage of Participants With Sustained Virologic Response at Post Treatment Week 24 (SVR24)DCV/SOF All93.2 Percentage of participants
Treatment-naive Participants With Genotype 2 or 3Percentage of Participants With Sustained Virologic Response at Post Treatment Week 24 (SVR24)DCV/SOF with ribavirin (n=56, 14, 20)92.9 Percentage of participants
Telaprevir or Boceprevir Failures With Genotype 1Percentage of Participants With Sustained Virologic Response at Post Treatment Week 24 (SVR24)DCV/SOF with ribavirin (n=56, 14, 20)100.0 Percentage of participants
Telaprevir or Boceprevir Failures With Genotype 1Percentage of Participants With Sustained Virologic Response at Post Treatment Week 24 (SVR24)DCV/SOF All100.0 Percentage of participants
Telaprevir or Boceprevir Failures With Genotype 1Percentage of Participants With Sustained Virologic Response at Post Treatment Week 24 (SVR24)DCV/SOF without ribavirin (n=70, 30, 21)100.0 Percentage of participants
Secondary

Percentage of Participants With Viral Breakthrough During the Treatment Period

Viral breakthrough is defined as any confirmed increase in viral load ≥1 log from nadir or any confirmed hepatitis C virus RNA levels ≥25 IU/mL on or after Week 8.

Time frame: First dose of study drug (Day 1) up to end of treatment period (up to 12 or 24 weeks, depending on treatment group)

Population: The analysis was performed in all treated participants who received at least 1 dose of active study therapy. The 'n' signifies those participants evaluable for this measure at specified time points for each group, respectively.

ArmMeasureGroupValue (NUMBER)
Treatment-naive Participants With Genotype 1Percentage of Participants With Viral Breakthrough During the Treatment PeriodDCV/SOF with ribavirin (n=56, 14, 20)0 Percentage of participants
Treatment-naive Participants With Genotype 1Percentage of Participants With Viral Breakthrough During the Treatment PeriodDCV/SOF without ribavirin (n=70, 30, 21)0 Percentage of participants
Treatment-naive Participants With Genotype 2 or 3Percentage of Participants With Viral Breakthrough During the Treatment PeriodDCV/SOF with ribavirin (n=56, 14, 20)0 Percentage of participants
Treatment-naive Participants With Genotype 2 or 3Percentage of Participants With Viral Breakthrough During the Treatment PeriodDCV/SOF without ribavirin (n=70, 30, 21)3.3 Percentage of participants
Telaprevir or Boceprevir Failures With Genotype 1Percentage of Participants With Viral Breakthrough During the Treatment PeriodDCV/SOF with ribavirin (n=56, 14, 20)0 Percentage of participants
Telaprevir or Boceprevir Failures With Genotype 1Percentage of Participants With Viral Breakthrough During the Treatment PeriodDCV/SOF without ribavirin (n=70, 30, 21)0 Percentage of participants

Source: ClinicalTrials.gov · Data processed: Mar 8, 2026