An observational study in Hepatitis C, Chronic, sponsored by Hoffmann-La Roche. Completed at 21 sites in Israel. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-03-14.
Sponsored by Hoffmann-La Roche · Observational
This multi-center, observational study will evaluate the efficacy and safety of dual and triple therapies based on Pegasys (peginterferon alfa-2a) in patients with chronic hepatitis C. Patients receiving treatment with either Pegasys plus ribavirin or Pegasys plus ribavirin plus telaprevir/boceprevir will be observed for the duration of their treatment and for up to 24 weeks of follow-up.
2,709 studies on the registry are indexed under Hepatitis A; 142 are open to participants now.
This study's enrollment of 991 is above the median of 250 across 687 observational studies indexed under Hepatitis A.
Browse Hepatitis A studies →Hoffmann-La Roche is the lead sponsor of 2,061 studies on the registry; 85 are open to participants now.
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Chronic hepatitis C patients initiating Pegasys-based treatment
Exclusion Criteria:
Percentage of Participants With Sustained Viral Response (SVR) at Week 24
The overall SVR-24 rate was defined as percentage of participants with Hepatitis C Virus Ribonucleic Acid (HCV-RNA) levels \< 50 International Units per MilliLiter (IU/mL) (as measured by Polymerase Chain Reaction (PCR)) at 24 weeks post treatment completion.
Time frame: Week 24
Comparison of SVR at Week 24
SVR at Week 24 is compared by treatment group, type of infection, prior treatments and genotype.
Time frame: Week 24
Number of Participants With SVR at Week 24 According to the Demographic Characteristics
The overall SVR-24 rate was defined as percentage of participants with Hepatitis C Virus Ribonucleic Acid (HCV-RNA) levels \< 50 International Units per MilliLiter (IU/mL) (as measured by Polymerase Chain Reaction (PCR)) at 24 weeks post treatment completion. Number of participants analysed signifies participants who were evaluated for outcome measure. Data for this outcome measure was not summarized for each arm. Hence, data is reported for all participants.
Time frame: Week 24
Percentage of Participants With Rapid Virologic Response (RVR) at Week 4
RVR was defined as HCV-RNA \<50 IU/mL by Week 4
Time frame: Week 4
Percentage of Participants With Extended RVR
Extended RVR was defined as HCV-RNA \<50 IU/mL at weeks 4 and 12 for participants treated with telaprevir; or at weeks 8 \& 24 for participants treated with boceprevir. The assessment was performed in participants who received triple therapy in treatment arms 'Peginterferon Alfa-2a + Ribavirin +Telaprevir' and 'Peginterferon Alfa-2a + Ribavirin + Boceprevir'.
Time frame: Week 4 and 12 for telaprevir group; Week 8 and 24 for boceprevir group
Percentage of Participants With Complete Early Virologic Response (cEVR)
Complete early virologic response (cEVR) was defined as HCV-RNA \<50 IU/mL by Week 12
Time frame: Week 12
Percentage of Participants With End of Treatment Response (EoT)
End-of-Treatment (EoT) response was defined as HCV-RNA \<50 IU/mL by the end of treatment.
Time frame: Week 24
Percentage of Participants With Virologic Relapse
Virologic relapse was defined as detectable HCV-RNA during the treatment-free follow-up period in participants with HCV-RNA \<50 IU/mL at EoT.
Time frame: Week 72
Treatment Duration
The average amount of time a treatment was prescribed to participants.
Time frame: Week 48
Time to First Dose Modification of Peginterferon Alfa-2a
Time frame: Week 48
Time to First Dose Modification of Ribavirin
Time frame: Week 48
Time to First Dose Modification of Telaprevir/Boceprevir
Time frame: Week 48
Percentage of Participants With Adverse Events (AEs)
Any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. Safety analysis included 2 additional participants in arm 'Peginterferon Alfa-2a + Ribavirin + Telaprevir'. The safety parameters were analyzed by the treatment actually received by the participants.
Time frame: Week 48
Mean Value of Hemoglobin in Participants With Treatment-Induced Anemia
Time frame: Week 48
Percentage of Participants With Treatment Regimen for HCV Treatment Induced Anemia
Time frame: Week 48
Percentage of Participants Who Had SVR at Week 24 With Dose Modifications
Participants with dose modifications who had achieved SVR at Week 24 were reported. Data was collected for all participants who had dose modification of Peginterferon alfa-2a, Ribavirin or Telaprevir/boceprevir in any of the treatment regimen during the study.
Time frame: Week 24
The study was conducted at 21 investigational centers in Israel.
| Milestone | Peginterferon Alfa-2a + Ribavirin | Peginterferon Alfa-2a + Ribavirin + Telaprevir | Peginterferon Alfa-2a + Ribavirin + Boceprevir | No Information on Treatment Allocation |
|---|---|---|---|---|
| Started | 311 | 443 | 193 | 44 |
| Completed | 311 | 443 | 193 | 44 |
| Not completed | 0 | 0 | 0 | 0 |
The overall SVR-24 rate was defined as percentage of participants with Hepatitis C Virus Ribonucleic Acid (HCV-RNA) levels \< 50 International Units per MilliLiter (IU/mL) (as measured by Polymerase Chain Reaction (PCR)) at 24 weeks post treatment completion.
| Percentage of Participants | Peginterferon Alfa-2a + Ribavirin | Peginterferon Alfa-2a + Ribavirin + Telaprevir | Peginterferon Alfa-2a + Ribavirin + Boceprevir |
|---|---|---|---|
| Percentage of Participants With Sustained Viral Response (SVR) at Week 24 | 87.2 (81.1 to 91.9) | 94.8 (91.6 to 97.1) | 85.2 (77.4 to 91.1) |
SVR at Week 24 is compared by treatment group, type of infection, prior treatments and genotype.
| Percentage of Participants | Peginterferon Alfa-2a + Ribavirin | Peginterferon Alfa-2a + Ribavirin + Telaprevir | Peginterferon Alfa-2a + Ribavirin + Boceprevir |
|---|---|---|---|
| HCV Mono Infection | 86.6 (80.3 to 91.5) | 94.8 (91.5 to 97.0) | 84.5 (77.2 to 91.1) |
| HIV/HCV Co-Infection | 100 (NA to NA) | 100 (NA to NA) | — |
| Genotype 1 | 83.8 (68.0 to 93.8) | 94.9 (91.6 to 97.1) | 84.4 (77.2 to 91.1) |
| Other Genotypes | 88.2 (81.3 to 93.2) | 100 (NA to NA) | — |
| Treatment - Naive | 89.7 (83.6 to 94.1) | 95.5 (89.5 to 98.5) | 86.7 (73.2 to 94.9) |
| Treatment - Experienced | 66.7 (41.0 to 86.7) | 94.5 (90.1 to 97.3) | 83.1 (73.6 to 91.9) |
The overall SVR-24 rate was defined as percentage of participants with Hepatitis C Virus Ribonucleic Acid (HCV-RNA) levels \< 50 International Units per MilliLiter (IU/mL) (as measured by Polymerase Chain Reaction (PCR)) at 24 weeks post treatment completion. Number of participants analysed signifies participants who were evaluated for outcome measure. Data for this outcome measure was not summarized for each arm. Hence, data is reported for all participants.
| Participants | All Participants |
|---|---|
| Gender: Male - Achieved SVR 24 | 316 |
| Gender: Male - Did not achieve SVR | 33 |
| Gender: Female - Achieved SVR 24 | 198 |
| Gender: Female - Did not achieve SVR | 20 |
| Age - Achieved SVR 24 | 513 |
| Age - Did not achieve SVR | 44 |
| Height - Achieved SVR 24 | 44 |
| Height - Did not achieve SVR | 44 |
| Weight - Achieved SVR 24 | 44 |
| Weight - Did not achieve SVR | 44 |
| Body Mass Index - Achieved SVR 24 | 44 |
| Body Mass Index - Did not achieve SVR | 44 |
RVR was defined as HCV-RNA \<50 IU/mL by Week 4
| Percentage of Participants | Peginterferon Alfa-2a + Ribvavirin | Peginterferon Alfa-2a + Ribavirin +Telaprevir | Peginterferon Alfa-2a + Ribavirin + Boceprevir |
|---|---|---|---|
| Percentage of Participants With Rapid Virologic Response (RVR) at Week 4 | 61.2 (54.4 to 67.6) | 70.9 (66.1 to 75.3) | 21.1 (15.0 to 28.4) |
Extended RVR was defined as HCV-RNA \<50 IU/mL at weeks 4 and 12 for participants treated with telaprevir; or at weeks 8 \& 24 for participants treated with boceprevir. The assessment was performed in participants who received triple therapy in treatment arms 'Peginterferon Alfa-2a + Ribavirin +Telaprevir' and 'Peginterferon Alfa-2a + Ribavirin + Boceprevir'.
| Percentage of Participants | Peginterferon Alfa-2a + Ribavirin +Telaprevir | Peginterferon Alfa-2a + Ribavirin + Boceprevir |
|---|---|---|
| Percentage of Participants With Extended RVR | 72.7 (67.7 to 77.2) | 70.7 (60.7 to 79.4) |
Complete early virologic response (cEVR) was defined as HCV-RNA \<50 IU/mL by Week 12
| Percentage of Participants | Peginterferon Alfa-2a + Ribvavirin | Peginterferon Alfa-2a + Ribavirin +Telaprevir | Peginterferon Alfa-2a + Ribavirin + Boceprevir |
|---|---|---|---|
| Percentage of Participants With Complete Early Virologic Response (cEVR) | 75.0 (68.3 to 81.0) | 84.9 (80.9 to 88.4) | 62.0 (54.0 to 69.6) |
End-of-Treatment (EoT) response was defined as HCV-RNA \<50 IU/mL by the end of treatment.
| Percentage of Participants | Peginterferon Alfa-2a + Ribvavirin | Peginterferon Alfa-2a + Ribavirin +Telaprevir | Peginterferon Alfa-2a + Ribavirin + Boceprevir |
|---|---|---|---|
| Percentage of Participants With End of Treatment Response (EoT) | 86.4 (81.8 to 90.1) | 81.9 (77.9 to 85.4) | 76.6 (69.9 to 82.4) |
Virologic relapse was defined as detectable HCV-RNA during the treatment-free follow-up period in participants with HCV-RNA \<50 IU/mL at EoT.
| Percentage of Participants | Peginterferon Alfa-2a + Ribvavirin | Peginterferon Alfa-2a + Ribavirin +Telaprevir | Peginterferon Alfa-2a + Ribavirin + Boceprevir |
|---|---|---|---|
| Percentage of Participants With Virologic Relapse | 0.3 (0 to 1.9) | 0 (NA to NA) | 0 (NA to NA) |
The average amount of time a treatment was prescribed to participants.
| Weeks | Peginterferon Alfa-2a + Ribavirin | Peginterferon Alfa-2a + Ribavirin + Telaprevir | Peginterferon Alfa-2a + Ribavirin + Boceprevir |
|---|---|---|---|
| Peginterferon Alfa-2a Treatment Duration | 26.2 ± 11.5 | 34.8 ± 15.2 | 36.1 ± 14.7 |
| Ribavirin Treatment Duration | 26.2 ± 11.6 | 34.8 ± 15.2 | 36.1 ± 14.7 |
| Telaprevir/ Boceprevir Treatment Duration | NA ± NA | 11.8 ± 4.6 | 30.6 ± 14.9 |
| Days | Peginterferon Alfa-2a + Ribavirin | Peginterferon Alfa-2a + Ribavirin +Telaprevir | Peginterferon Alfa-2a + Ribavirin + Boceprevir |
|---|---|---|---|
| Time to First Dose Modification of Peginterferon Alfa-2a | 418.5 ± 9.7 | 247.6 ± 4.1 | 328.4 ± 13.7 |
| Days | Peginterferon Alfa-2a + Ribvavirin | Peginterferon Alfa-2a + Ribavirin +Telaprevir | Peginterferon Alfa-2a + Ribavirin + Boceprevir |
|---|---|---|---|
| Time to First Dose Modification of Ribavirin | NA ± NA | 61.4 ± 3.6 | 89.4 ± 6.8 |
| Days | Peginterferon Alfa-2a + Ribavirin +Telaprevir | Peginterferon Alfa-2a + Ribavirin + Boceprevir |
|---|---|---|
| Time to First Dose Modification of Telaprevir/Boceprevir | 124.6 ± 0.7 | 82.3 ± 0.8 |
Any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease temporally associated with the use of a medicinal product, whether or not considered related to the medicinal product. Safety analysis included 2 additional participants in arm 'Peginterferon Alfa-2a + Ribavirin + Telaprevir'. The safety parameters were analyzed by the treatment actually received by the participants.
| Percentage of Participants | Peginterferon Alfa-2a + Ribavirin | Peginterferon Alfa-2a + Ribavirin + Telaprevir | Peginterferon Alfa-2a + Ribavirin + Boceprevir |
|---|---|---|---|
| Percentage of Participants With Adverse Events (AEs) | 68.8 | 79.3 | 85.9 |
| Grams per Deciliter (g/dl) | Peginterferon Alfa-2a + Ribavirin | Peginterferon Alfa-2a + Ribavirin + Telaprevir | Peginterferon Alfa-2a +Ribavirin + Boceprevir |
|---|---|---|---|
| Mean Value of Hemoglobin in Participants With Treatment-Induced Anemia | 9.3 ± 1.6 | 9.2 ± 1.3 | 9.5 ± 1.3 |
| Percentage of Participants | Peginterferon Alfa-2a + Ribvavirin | Peginterferon Alfa-2a + Ribavirin +Telaprevir | Peginterferon Alfa-2a + Ribavirin + Boceprevir |
|---|---|---|---|
| RVB Dose Reduction | 37 | 56.5 | 53.6 |
| RBV Temporary Interrupted | 2.5 | 4.5 | 2.3 |
| RBV Permanently Interrupted | 0 | 1.4 | 0.9 |
| Use of Erythropotin | 18.5 | 27.3 | 29.1 |
| Blood Transfusion | 17.3 | 18.8 | 12.7 |
| DAA Permanently Discontinued | 0 | 1.4 | 0.5 |
| Peg-IFN a-2a Dose Reduction | 2.5 | 1.1 | 5.5 |
| No Other Action Done | 32.1 | 22.2 | 25.5 |
| Other | 6.2 | 4.8 | 2.7 |
Participants with dose modifications who had achieved SVR at Week 24 were reported. Data was collected for all participants who had dose modification of Peginterferon alfa-2a, Ribavirin or Telaprevir/boceprevir in any of the treatment regimen during the study.
| percentage of participants | All Participants |
|---|---|
| Peginterferon alfa-2a | 15.70 |
| Ribavirin | 55.56 |
| Telaprevir/boceprevir | 0.78 |
Collected over Week 48. Non-serious events are listed at a 5% frequency threshold.
| Group | Deaths | Serious | Other |
|---|---|---|---|
| Peginterferon Alfa-2a + Ribavirin | — | 24/311 (7.7%) | 208/311 (66.9%) |
| Peginterferon Alfa-2a + Ribavirin +Telaprevir | — | 78/445 (17.5%) | 338/445 (76%) |
| Peginterferon Alfa-2a + Ribavirin + Boceprevir | — | 26/192 (13.5%) | 161/192 (83.9%) |
| Event | Peginterferon Alfa-2a + Ribavirin | Peginterferon Alfa-2a + Ribavirin +Telaprevir | Peginterferon Alfa-2a + Ribavirin + Boceprevir |
|---|---|---|---|
| AnaemiaBlood and lymphatic system disorders | 2/311 | 30/445 | 5/192 |
| PyrexiaGeneral disorders | 5/311 | 12/445 | 4/192 |
| RashSkin and subcutaneous tissue disorders | 0/311 | 8/445 | 0/192 |
| PancytopeniaBlood and lymphatic system disorders | 0/311 | 3/445 | 3/192 |
| Chest PainGeneral disorders | 2/311 | 1/445 | 3/192 |
| PneumoniaInfections and infestations | 2/311 | 1/445 | 3/192 |
| DeathGeneral disorders | 4/311 | 1/445 | 0/192 |
| AstheniaGeneral disorders | 0/311 | 5/445 | 0/192 |
| NeutropeniaBlood and lymphatic system disorders | 0/311 | 0/445 | 2/192 |
| CellulitisInfections and infestations | 1/311 | 0/445 | 2/192 |
| Event | Peginterferon Alfa-2a + Ribavirin | Peginterferon Alfa-2a + Ribavirin +Telaprevir | Peginterferon Alfa-2a + Ribavirin + Boceprevir |
|---|---|---|---|
| AnemiaBlood and lymphatic system disorders | 44/311 | 162/445 | 96/192 |
| AstheniaGeneral disorders | 116/311 | 169/445 | 85/192 |
| PruritusSkin and subcutaneous tissue disorders | 41/311 | 133/445 | 44/192 |
| RashSkin and subcutaneous tissue disorders | 43/311 | 124/445 | 33/192 |
| PyrexiaGeneral disorders | 47/311 | 60/445 | 44/192 |
| DysgeusiaNervous system disorders | 23/311 | 32/445 | 42/192 |
| NeutropeniaBlood and lymphatic system disorders | 27/311 | 33/445 | 40/192 |
| NauseaGastrointestinal disorders | 40/311 | 59/445 | 34/192 |
| HeadacheNervous system disorders | 55/311 | 49/445 | 26/192 |
| Decreased AppetiteMetabolism and nutrition disorders | 51/311 | 66/445 | 27/192 |
All Enrolled Participants
| Age, Continuous(Years) | Peginterferon Alfa-2a + Ribavirin | Peginterferon Alfa-2a + Ribavirin + Telaprevir | Peginterferon Alfa-2a + Ribavirin + Boceprevir | No Information on Treatment Allocation | Total |
|---|---|---|---|---|---|
| Mean | 44.1 ± 10.6 | 50.3 ± 11.0 | 51.1 ± 11.6 | 48.1 ± 12.0 | 48.4 ± 11.4 |
| Sex/Gender, Customized(Participants) | Peginterferon Alfa-2a + Ribavirin | Peginterferon Alfa-2a + Ribavirin + Telaprevir | Peginterferon Alfa-2a + Ribavirin + Boceprevir | No Information on Treatment Allocation | Total |
|---|---|---|---|---|---|
| Female | 101 | 161 | 74 | 9 | 345 |
| Male | 210 | 282 | 118 | 18 | 628 |
| Unknown | 0 | 0 | 1 | 17 | 18 |
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Hoffmann-La Roche