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PROPHESYS 1: An Observational Study on Predictors of Response in Treatment-naïve Patients With Chronic Hepatitis C Virus (HCV)Treated With Pegasys (Peginterferon Alfa-2a)

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ClinicalTrials.gov Identifier: NCT01070550
Recruitment Status : Completed
First Posted : February 18, 2010
Results First Posted : June 15, 2016
Last Update Posted : June 15, 2016
Sponsor:
Information provided by (Responsible Party):
Hoffmann-La Roche

Tracking Information
First Submitted Date February 9, 2010
First Posted Date February 18, 2010
Results First Submitted Date May 9, 2016
Results First Posted Date June 15, 2016
Last Update Posted Date June 15, 2016
Study Start Date June 2007
Actual Primary Completion Date July 2011   (Final data collection date for primary outcome measure)
Current Primary Outcome Measures
 (submitted: May 9, 2016)
  • Percentage of Participants With Sustained Virological Response by Genotype in Modified All Treated Population [ Time Frame: At 24 weeks after EOT ]
    Sustained virological response (SVR) was defined as virological response (VR) at 24 weeks after end of treatment (EOT). Virological response was defined as hepatitis C virus ribonucleic acid (HCV RNA) of <15 international units per milliliter (IU/mL) as assessed by COBAS AmpliPrep/COBAS TaqMan (CAP/CTM) or another HCV RNA test with at least the same degree of sensitivity. The CAP/CTM test is an in vitro nucleic acid amplification test for the quantification of HCV. This test possesses a high sensitivity (lower limit of detection [LLOD] 15 IU/mL) and a broad linear range of quantification (43 IU/mL up to 69 million IU/mL) in all HCV genotypes. The SVR is reported in treatment naive hepatitis C virus (HCV) mono-infected modified all-treated (mTRT) who received PEG-IFN alfa-2a. The EOT was 12, 24, 48 or 72 weeks after initiation of treatment.
  • Percentage of Participants With Sustained Virological Response by Genotype in Per-Protocol Population [ Time Frame: At 24 weeks after EOT ]
    Sustained virological response was defined as VR at 24 weeks after EOT. Virological response was defined as HCV RNA of <15 IU/mL as assessed by CAP/CTM or another HCV RNA test with at least the same degree of sensitivity. The CAP/CTM test is an in vitro nucleic acid amplification test for the quantification of HCV. This test possesses a high sensitivity (LLOD 15 IU/mL) and a broad linear range of quantification (43 IU/mL up to 69 million IU/mL) in all HCV genotypes. The SVR is reported in treatment naive HCV mono-infected per protocol (PP) population who received PEG-IFN alfa-2a. The EOT was 12, 24, 48 or 72 weeks after initiation of treatment.
  • Percentage of Participants With Modified Sustained Virological Response by Genotype in Modified All-Treated Population [ Time Frame: At 24 weeks after EOT ]
    Modified sustained virological response (mSVR) was defined as modified virological response (mVR) of HCV RNA <50 IU/mL at 24 weeks after EOT. The mSVR is reported in treatment naive HCV mono-infected mTRT who received PEG-IFN alfa-2a. The EOT was 12, 24, 48 or 72 weeks after initiation of treatment.
  • Percentage of Participants With Modified Sustained Virological Response by Genotype in Per-Protocol Population [ Time Frame: At 24 weeks after EOT ]
    Modified sustained virological response is defined as mVR of HCV RNA <50 IU/mL at 24 weeks after EOT. The mSVR is reported in treatment naive HCV mono-infected PP population who received PEG-IFN alfa-2a. The EOT was 12, 24, 48 or 72 weeks after initiation of treatment.
  • Percentage of Participants With Predictive Values of Virological Response by Week 4 and Week 12 on Modified Sustained Virological Response by Genotype After Treatment Initiation in Modified All-Treated Population [ Time Frame: At 24 weeks after EOT ]
    The probability that a participant who developed VR by Week 4 and 12 and also achieved mSVR at 24 weeks after EOT was called the positive predictive value (PPV) of the VR by Wk 4 for mSVR. The probability that a participant who failed to develop VR by Wk 4 and 12 and also failed to achieve mSVR at 24 weeks after EOT was called the negative predictive value (NPV) of the VR by Wk 4 and 12 for mSVR. Predictive values of VR are reported in treatment naive HCV mono-infected mTRT participants who received PEG-IFN alfa-2a. The EOT was 12, 24, 48 or 72 weeks after initiation of treatment.
  • Percentage of Participants With Predictive Values of Virological Response by Week 4 and 12 on Modified Sustained Virological Response by Genotype After Treatment Initiation in Per-Protocol Population [ Time Frame: At 24 weeks after EOT ]
    The probability that a participant who developed VR by Week 4 and 12 and also achieved mSVR at 24 weeks after EOT was called the PPV of the VR by Wk 4 for mSVR. The probability that a participant who failed to develop VR by Wk 4 and 12 and also failed to achieve mSVR at 24 weeks after EOT was called the NPV of the VR by Wk 4 and 12 for mSVR. Predictive values of VR are reported in treatment naive HCV mono-infected PP population who received PEG-IFN alfa-2a. The EOT was 12, 24, 48 or 72 weeks after initiation of treatment.
Original Primary Outcome Measures
 (submitted: February 17, 2010)
Predictive values of virological response 4 and 12 weeks after treatment initiation on sustained virological response (SVR) by HCV genotype [ Time Frame: weeks 4 and 12, and 24 weeks after end of treatment ]
Change History Complete list of historical versions of study NCT01070550 on ClinicalTrials.gov Archive Site
Current Secondary Outcome Measures
 (submitted: May 9, 2016)
  • Percentage of Participants With Virological Response by Genotype in Modified All-Treated Population Over Time [ Time Frame: At Week 2, Week 4, and Week 12, EOT, and 12 weeks after EOT ]
    Virological response was defined as HCV RNA <15 IU/mL as assessed by CAP/CTM or another HCV RNA test with at least the same degree of sensitivity. The CAP/CTM test is an in vitro nucleic acid amplification test for the quantification of HCV. This test possesses a high sensitivity (LLOD 15 IU/mL) and a broad linear range of quantification (43 IU/mL up to 69 million IU/mL) in all HCV genotypes. The VR is reported in treatment naive HCV mono-infected mTRT population who received PEG-IFN alfa-2a. The EOT was 12, 24, 48 or 72 weeks after initiation of treatment.
  • Percentage of Participants With Virological Response by Genotype in Per-Protocol Population Over Time [ Time Frame: At Week 2, Week 4, Week 12, EOT, and 12 weeks after EOT ]
    Virological response was defined as HCV RNA <15 IU/mL as assessed by CAP/CTM or another HCV RNA test with at least the same degree of sensitivity. The CAP/CTM test is an in vitro nucleic acid amplification test for the quantification of HCV. This test possesses a high sensitivity (LLOD 15 IU/mL) and a broad linear range of quantification (43 IU/mL up to 69 million IU/mL) in all HCV genotypes. The VR is reported in treatment naive HCV mono-infected PP population who received PEG-IFN alfa-2a. The EOT was 12, 24, 48 or 72 weeks after initiation of treatment.
  • Percentage of Participants With Modified Virological Response by Genotype in Modified All-Treated Population Over Time [ Time Frame: At Week 2, Week 4, Week 12, EOT, and 12 weeks after EOT ]
    Modified virological response was defined as HCV RNA <50 IU/mL as assessed by CAP/CTM or another HCV RNA test with at least the same degree of sensitivity. The CAP/CTM test is an in vitro nucleic acid amplification test for the quantification of HCV. This test possesses a high sensitivity (LLOD 15 IU/mL) and a broad linear range of quantification (43 IU/mL up to 69 million IU/mL) in all HCV genotypes. The mVR is reported in treatment naive HCV mono-infected mTRT population who received PEG-IFN alfa-2a. The EOT was 12, 24, 48 or 72 weeks after initiation of treatment.
  • Percentage of Participants With Modified Virological Response by Genotype in Per-Protocol Population Over Time [ Time Frame: At Week 2, Week 4, Week 12, EOT, and 12 weeks after EOT ]
    Modified virological response is defined as HCV RNA <50 IU/mL as assessed by CAP/CTM or another HCV RNA test with at least the same degree of sensitivity. The CAP/CTM test is an in vitro nucleic acid amplification test for the quantification of HCV. This test possesses a high sensitivity (LLOD 15 IU/mL) and a broad linear range of quantification (43 IU/mL up to 69 million IU/mL) in all HCV genotypes. The mVR is reported in treatment naive HCV mono-infected PP population who received PEG-IFN alfa-2a. The EOT was 12, 24, 48 or 72 weeks after initiation of treatment.
  • Percentage of Participants With At Least 2-logarithm10 Drop in Hepatitis C Virus Deoxyribonucleic Acid by Genotype in Modified All-Treated Population at Week 2, Week 4 and Week 12 [ Time Frame: At Week 2, Week 4, and Week 12 ]
    Participants with 2-logarithm (log) drop in HCV RNA including HCV RNA values <50 IU/mL in the serum from baseline to Week 2, Week 4 and Week 12, expressed in terms of a logarithmic scale with base 10 were evaluated and reported. A 2 log drop in HCV RNA was defined as drop of HCV viral load by 99%. The 2 log drop in HCV RNA is reported in treatment naive HCV mono-infected mTRT population who received PEG-IFN alfa-2a.
  • Percentage of Participants With At Least a 2-logarithm10 Drop in Hepatitis C Virus Deoxyribonucleic Acid by Genotype in Per-Protocol Population at Week 2, Week 4 and Week 12 [ Time Frame: Week 2, Week 4, and Week 12 ]
    Participants with 2-log drop in HCV RNA including HCV RNA values <50 IU/mL in the serum from baseline to Week 2, Week 4 and Week 12, expressed in terms of a logarithmic scale with base 10 were evaluated and reported. A 2 log drop in HCV RNA was defined as drop of HCV viral load by 99%. The 2 log drop in HCV RNA is reported in treatment naive HCV mono-infected PP population who received PEG-IFN alfa-2a.
  • Percentage of Participants With At Least 1-logarithm10 Drop in Hepatitis C Virus Deoxyribonucleic Acid by Genotype in Modified All-Treated Population at Week 2, Week 4 and Week 12 [ Time Frame: Week 2, Week 4, and Week 12 ]
    Participants with 1-log drop in HCV RNA including HCV RNA values <50 IU/mL in the serum from baseline to Week 2, Week 4 and Week 12, expressed in terms of a logarithmic scale with base 10 were evaluated and reported. A 1- log drop in HCV RNA was defined as drop of HCV viral load by 90%. The 1- log drop in HCV RNA was reported in treatment naive HCV mono-infected mTRT population who received PEG-IFN alfa-2a.
  • Percentage of Participants With At Least 1 Log Drop in Hepatitis C Virus Deoxyribonucleic Acid by Genotype in Per-Protocol Population at Week 2, Week 4 and Week 12 [ Time Frame: Week 2, Week 4, and Week 12 ]
    Participants with 1-log drop in HCV RNA including HCV RNA values <50 IU/mL in the serum from baseline to Week 2, Week 4 and Week 12, expressed in terms of a logarithmic scale with base 10 were evaluated and reported. A 1- log drop in HCV RNA was defined as drop of HCV viral load by 90%. The 1- log drop in HCV RNA was reported in treatment naive HCV mono-infected PP population who received PEG-IFN alfa-2a.
  • Number of Participants With Response by Disjoint Categories by Genotype in Modified All-Treated Population at Week 4 and Week 12 [ Time Frame: Week 4 and Week 12 ]
    Rapid virological response (RVR) was defined as VR by Week 4, Modified rapid virological response (mRVR) was defined as mVR by Week 4, Complete early virological response (cEVR) was defined as VR by Week 12, but no RVR, Modified complete early virological response (mcEVR) was defined as mVR by Week 12, but no mRVR, Partial early virological response (pEVR) was defined as at least a 2-log10 drop in HCV RNA as compared to baseline (including HCV RNA values <50 IU/mL) by, Week 12, but no RVR and no cEVR, Modified partial early virological response (mpEVR) was defined as at least a 2-log10 drop in HCV RNA as compared to baseline by Week 12, but no mRVR and no mcEVR. The data is reported in treatment naive HCV mono-infected mTRT participants who received PEG-IFN alfa-2a.
  • Number of Participants With Response by Disjoint Categories by Genotype in Per-Protocol Population at Week 4 and Week 12 [ Time Frame: At Week 4 and Week 12 ]
    RVR defined was as VR by Week 4, mRVR was defined as mVR by Week 4, cEVR was defined as VR by Week 12, but no RVR, mcEVR was defined as mVR by Week 12, but no mRVR, pEVR was defined as at least a 2-log10 drop in HCV RNA as compared to baseline (including HCV RNA values <50 IU/mL) by Week 12, but no RVR and no cEVR, mpEVR was defined as at least a 2-log10 drop in HCV RNA as compared to baseline by Week 12, but no mRVR and no mcEVR. The data is reported in treatment naive HCV mono-infected PP population who received PEG-IFN alfa-2a.
  • Percentage of Participants With Relapse After Modified End of Treatment Response by Genotype in Modified All-Treated Population at 12 Weeks After End of Treatment [ Time Frame: At 12 Weeks after EOT ]
    Participants whose last test result in their respective follow-up time window showed mVR were considered to have maintained their modified end of treatment response (mEOT-R). Participants whose last test result in the respective follow-up time window did not show mVR, or who did not have a test result in the respective follow-up time window but whose last follow-up test result before the time window did not show mVR, were considered to have relapsed. Only participants with mEOT-R who had a HCV RNA measurement in the follow-up time window (without use of backward imputation), or whose last HCV RNA measurement at a follow-up time point before the time window did not show mVR, were included in the calculations. The percentage of participants with relapse is reported in treatment naive mTRT population who received PEG-IFN alfa-2a. The EOT was 12, 24, 48 or 72 weeks after initiation of treatment.
  • Percentage of Participants With Relapse After Modified End of Treatment Response by Genotype in Per Protocol Population at 12 Weeks After End of Treatment [ Time Frame: At 12 weeks after EOT ]
    Participants whose last test result in their respective follow-up time window showed mVR were considered to have maintained their mEOT-R. Participants whose last test result in the respective follow-up time window did not show mVR, or who did not have a test result in the respective follow-up time window but whose last follow-up test result before the time window did not show mVR, were considered to have relapsed. Only participants with mEOT-R who had a HCV RNA measurement in the follow-up time window (without use of backward imputation), or whose last HCV RNA measurement at a follow-up time point before the time window did not show mVR, were included in the calculations. The percentage of participants with relapse is reported in treatment naive PP population who received PEG-IFN alfa-2a. The EOT was 12, 24, 48 or 72 weeks after initiation of treatment.
  • Percentage of Participants With Relapse After Modified End of Treatment Response by Genotype in Modified All-Treated Population at 24 Weeks After End of Treatment [ Time Frame: At 24 weeks after EOT ]
    Participants whose last test result in the follow-up time window showed mVR were considered to have maintained their mEOT-R. Participants whose last test result in the respective follow-up time window did not show mVR, or who did not have a test result in the respective follow-up time window but whose last follow-up test result before the time window did not show mVR, were considered to have relapsed. Only participants with mEOT-R who had a HCV RNA measurement in the follow-up time window (without use of backward imputation), or whose last HCV RNA measurement at a follow-up time point before the time window did not show mVR, were included in the calculations. The percentage of participants with relapse was reported in treatment naive mTRT population who received PEG-IFN alfa-2a. The EOT was 12, 24, 48 or 72 weeks after initiation of treatment.
  • Percentage of Participants With Relapse After Modified End of Treatment Response by Genotype in Per Protocol Population at 24 Weeks After End of Treatment [ Time Frame: At 24 weeks after EOT ]
    Participants whose last test result in the follow-up time window showed mVR were considered to have maintained their mEOT-R. Participants whose last test result in the respective follow-up time window did not show mVR, or who did not have a test result in the respective follow-up time window but whose last follow-up test result before the time window did not show mVR, were considered to have relapsed. Only participants with mEOT-R who had a HCV RNA measurement in the follow-up time window (without use of backward imputation), or whose last HCV RNA measurement at a follow-up time point before the time window did not show mVR, were included in the calculations. The percentage of participants with relapse is reported in treatment naive PP population who received PEG-IFN alfa-2a. The EOT was 12, 24, 48 or 72 weeks after initiation of treatment.
  • Percentage of Participants With Predictive Values of Virological Response by Week 2 on Modified Sustained Virological Response by Genotype After Treatment Initiation in Modified All-Treated Population [ Time Frame: At 24 weeks after EOT ]
    The probability that a participant who developed VR by Wk 2 also achieved mSVR at 24 weeks after EOT was called the PPV of the VR by Wk 2 for mSVR. The probability that a participant who failed to develop VR by Wk 2 and also failed to achieve mSVR at 24 weeks after EOT was called the NPV of the VR by Wk 2 for mSVR. Predictive Values of VR was reported in treatment naive HCV mono-infected mTRT population receiving PEG-IFN alfa-2a. The EOT was 12, 24, 48 or 72 weeks after initiation of treatment.
  • Percentage of Participants With Predictive Values of Virological Response by Week 2 on Modified Sustained Virological Response by Genotype After Treatment Initiation in Per-Protocol Population [ Time Frame: At 24 weeks after EOT ]
    The probability that a participant who developed VR by Wk 2 and also achieved mSVR at 24 weeks after EOT was called the PPV of the VR by Wk 2 for mSVR. The probability that a participant who failed to develop VR by Wk 2 and also failed to achieve mSVR at 24 weeks after EOT was called the NPV of the VR by Wk 2 for mSVR. Predictive values of VR are reported in treatment naive HCV mono-infected PP population who received PEG-IFN alfa-2a. The EOT was 12, 24, 48 or 72 weeks after initiation of treatment.
Original Secondary Outcome Measures
 (submitted: February 17, 2010)
  • Identification and confirmation of host-, virus- and treatment-related factors influencing viral response, SVR and relapse [ Time Frame: throughout treatment and 12 and 24 weeks after end of treatment ]
  • Correlation between overall treatment duration/treatment duration after HCV RNA becomes negative and SVR by genotype [ Time Frame: assessed 12 and 24 weeks after end of treatment ]
  • Correlation of cumulative ribavirin and peginterferon dose with SVR by genotype [ Time Frame: assessed 12 and 24 weeks after end of treatment ]
Current Other Pre-specified Outcome Measures Not Provided
Original Other Pre-specified Outcome Measures Not Provided
 
Descriptive Information
Brief Title PROPHESYS 1: An Observational Study on Predictors of Response in Treatment-naïve Patients With Chronic Hepatitis C Virus (HCV)Treated With Pegasys (Peginterferon Alfa-2a)
Official Title Prospective Observational Study on Predictors of Early On-treatment Response and Sustained Virological Response in a Cohort of Treatment naïve HCV-infected Patients Treated With Pegylated Interferons.
Brief Summary This observational study will assess predictors of early on-treatment and sustained virological response in treatment-naïve patients with chronic hepatitis C initiated on treatment with Pegasys (peginterferon alfa-2a) and ribavirin. Data will be collected during the treatment period (24 or 48 weeks) and 12 and 24 weeks after the end of treatment. Target sample size is <5000.
Detailed Description Not Provided
Study Type Observational
Study Design Observational Model: Cohort
Time Perspective: Prospective
Target Follow-Up Duration Not Provided
Biospecimen Not Provided
Sampling Method Probability Sample
Study Population Patients receiving peginterferon alfa-2a treatment at a medical centre
Condition Hepatitis C, Chronic
Intervention Drug: Peginterferon alfa-2a (Pegasys®)
Peginterferon (PEG-IFN) alfa-2a Peginterferon/ribavirin treatment period as prescribed by treating physician (e.g. 24 or 48 weeks) and treatment-free follow-up period of 24 weeks.
Study Groups/Cohorts Cohort
Participants chronically infected with the hepatitis C virus including Genotypes 1 to 6.
Intervention: Drug: Peginterferon alfa-2a (Pegasys®)
Publications *

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruitment Information
Recruitment Status Completed
Actual Enrollment
 (submitted: May 9, 2016)
4680
Original Estimated Enrollment
 (submitted: February 17, 2010)
4500
Actual Study Completion Date July 2011
Actual Primary Completion Date July 2011   (Final data collection date for primary outcome measure)
Eligibility Criteria

Inclusion Criteria:

  • adult patients, >/= 18 years of age
  • chronic hepatitis C
  • informed consent to data collection

Exclusion Criteria:

  • co-infection with HIV or Hepatitis B Virus (HBV)
  • previous treatment with peginterferon and/or ribavirin
Sex/Gender
Sexes Eligible for Study: All
Ages 18 Years and older   (Adult, Older Adult)
Accepts Healthy Volunteers No
Contacts Contact information is only displayed when the study is recruiting subjects
Listed Location Countries Austria,   Brazil,   Canada,   Croatia,   France,   Hungary,   Macedonia, The Former Yugoslav Republic of,   Mexico,   Morocco,   Poland,   Romania,   Serbia,   Slovenia,   Sweden
Removed Location Countries  
 
Administrative Information
NCT Number NCT01070550
Other Study ID Numbers MV21012
Has Data Monitoring Committee Not Provided
U.S. FDA-regulated Product Not Provided
IPD Sharing Statement Not Provided
Responsible Party Hoffmann-La Roche
Study Sponsor Hoffmann-La Roche
Collaborators Not Provided
Investigators
Study Director: Clinical Trials Hoffmann-La Roche
PRS Account Hoffmann-La Roche
Verification Date May 2016