A Study to Collect Blood Biomarker Samples From Participants With Chronic Hepatitis B (CHB) Who Received Treatment With Pegasys (Peginterferon Alfa-2a) ± Nucleoside/Nucleotide Analogue

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Hoffmann-La Roche
ClinicalTrials.gov Identifier:
NCT01855997
First received: May 8, 2013
Last updated: March 8, 2016
Last verified: January 2016
  Purpose
This Phase 4 study is designed for the collection of blood biomarker samples from participants who have completed CHB treatment with at least 24 weeks of a pegylated interferon alfa-2a (Peg-IFN alfa-2a) containing regimen and at least 24 weeks post-treatment follow-up. Participants may be enrolled from historical studies supported or sponsored by Roche, ongoing studies supported or sponsored by Roche, or from general medical practice. The follow-up of individuals who choose to participate in this study will be in accordance with the ongoing studies or with the general medical practice of the physician. Data from whole blood deoxyribonucleic acid (DNA) samples collected in the GV28555 study or available from previously collected Roche Clinical Repository (RCR) samples will be used for combined analysis with data from other applicable studies. Procedures will include blood sample collection (not applicable for participants who previously have consented and donated RCR DNA samples) and medical record capture.

Condition Intervention
Hepatitis B, Chronic
Drug: Peg-IFN alfa-2a

Study Type: Observational
Study Design: Observational Model: Cohort
Official Title: A Phase IV, Blood Sample Collection Study For Exploratory Evaluation of the Association of Single Nucleotide Polymorphisms With Treatment Responses From Subjects With HBe-Antigen Positive or Negative Chronic Hepatitis B, Who Received Therapy for Hepatitis B With Peginterferon Alfa-2a 40kD (Peg-IFN) ± Nucleos(t)Ide Analogue

Resource links provided by NLM:


Further study details as provided by Hoffmann-La Roche:

Primary Outcome Measures:
  • Single Nucleotide Polymorphisms (SNPs) Associated With HBeAg Seroconversion or Hepatitis B Surface Antigen (HBsAg) Clearance ≥24 Weeks Post-Treatment in HBeAg-Positive East Asian (CN) Population: Additive Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    Genome-wide association study (GWAS) approach was used to evaluate the association of SNPs with treatment response. HBeAg seroconversion was defined as the loss of HBeAg and detection of the antibody to HBeAg (anti-HBe). HBsAg clearance was defined as the loss of HBsAg, with or without detection of the antibody to HBsAg (anti-HBs). Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to additive models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With HBeAg Seroconversion or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Positive CN Population: Dominant Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to dominant models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With HBeAg Seroconversion or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Positive Population: Additive Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to additive models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With HBeAg Seroconversion or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Positive Population: Dominant Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to dominant models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With HBeAg Seroconversion Plus Undetectable Hepatitis B Virus (HBV) Deoxyribonucleic Acid (DNA) or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Positive CN Population: Additive Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate association of SNPs with treatment response. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. Undetectable HBV DNA was defined as HBV DNA level below the lower limit of detection (LLD) of 2000 international units per milliliter (IU/mL). HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. HBeAg seroconversion and undetectable HBV DNA were a combined criterion in treatment response. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to additive models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With HBeAg Seroconversion Plus Undetectable HBV DNA or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Positive CN Population: Dominant Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. HBeAg seroconversion and undetectable HBV DNA were a combined criterion in treatment response. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to dominant models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With HBeAg Seroconversion Plus Undetectable HBV DNA or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Positive Population: Additive Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. HBeAg seroconversion and undetectable HBV DNA were a combined criterion in treatment response. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to additive models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With HBeAg Seroconversion Plus Undetectable HBV DNA or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Positive Population: Dominant Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. HBeAg seroconversion and undetectable HBV DNA were a combined criterion in treatment response. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to dominant models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With Undetectable HBV DNA or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Negative Non-East Asian (Non-CN) Population: Additive Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to additive models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response. Only a single SNP (rs17037122) was included in the analysis.

  • SNPs Associated With Undetectable HBV DNA or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Negative Non-CN Population: Dominant Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to dominant models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response. Only a single SNP (rs17037122) was included in the analysis.

  • SNPs Associated With Undetectable HBV DNA or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Negative CN Population: Additive Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to additive models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response. Only a single SNP (rs2464266) was included in the analysis.

  • SNPs Associated With Undetectable HBV DNA or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Negative CN Population: Dominant Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to dominant models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With Undetectable HBV DNA or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Negative Population: Additive Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to additive models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With Undetectable HBV DNA or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Negative Population: Dominant Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to dominant models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With HBeAg Seroconversion, HBsAg Clearance, or Undetectable HBV DNA ≥24 Weeks Post-Treatment in Non-CN Population: Additive Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to additive models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With HBeAg Seroconversion, HBsAg Clearance, or Undetectable HBV DNA ≥24 Weeks Post-Treatment in Non-CN Population: Dominant Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to dominant models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response. Only a single SNP (rs17037122) was included in the analysis.

  • SNPs Associated With HBeAg Seroconversion, HBsAg Clearance, or Undetectable HBV DNA ≥24 Weeks Post-Treatment in CN Population: Additive Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to additive models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With HBeAg Seroconversion, HBsAg Clearance, or Undetectable HBV DNA ≥24 Weeks Post-Treatment in CN Population: Dominant Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to dominant models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With HBeAg Seroconversion, HBsAg Clearance, or Undetectable HBV DNA ≥24 Weeks Post-Treatment: Additive Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to additive models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With HBeAg Seroconversion, HBsAg Clearance, or Undetectable HBV DNA ≥24 Weeks Post-Treatment: Dominant Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to dominant models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With HBeAg Seroconversion Plus Undetectable HBV DNA, HBsAg Clearance, or Undetectable HBV DNA ≥24 Weeks Post-Treatment in Non-CN Population: Additive Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. HBeAg seroconversion and undetectable HBV DNA were a combined criterion in treatment response. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to additive models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With HBeAg Seroconversion Plus Undetectable HBV DNA, HBsAg Clearance, or Undetectable HBV DNA ≥24 Weeks Post-Treatment in Non-CN Population: Dominant Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. HBeAg seroconversion and undetectable HBV DNA were a combined criterion in treatment response. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to dominant models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With HBeAg Seroconversion Plus Undetectable HBV DNA, HBsAg Clearance, or Undetectable HBV DNA ≥24 Weeks Post-Treatment in CN Population: Additive Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. HBeAg seroconversion and undetectable HBV DNA were a combined criterion in treatment response. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to additive models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With HBeAg Seroconversion Plus Undetectable HBV DNA, HBsAg Clearance, or Undetectable HBV DNA ≥24 Weeks Post-Treatment in CN Population: Dominant Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. HBeAg seroconversion and undetectable HBV DNA were a combined criterion in treatment response. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to dominant models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With HBeAg Seroconversion Plus Undetectable HBV DNA, HBsAg Clearance, or Undetectable HBV DNA ≥24 Weeks Post-Treatment: Additive Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. HBeAg seroconversion and undetectable HBV DNA were a combined criterion in treatment response. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to additive models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With HBeAg Seroconversion Plus Undetectable HBV DNA, HBsAg Clearance, or Undetectable HBV DNA ≥24 Weeks Post-Treatment: Dominant Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. HBeAg seroconversion and undetectable HBV DNA were a combined criterion in treatment response. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to dominant models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With HBsAg Clearance ≥24 Weeks Post-Treatment in Non-CN Population: Additive Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to additive models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response. Only a single SNP (rs12992677) was included in the analysis.

  • SNPs Associated With HBsAg Clearance ≥24 Weeks Post-Treatment in Non-CN Population: Dominant Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to dominant models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response. Only a single SNP (rs12992677) was included in the analysis.

  • SNPs Associated With HBsAg Clearance ≥24 Weeks Post-Treatment in CN Population: Additive Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to additive models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response. Only a single SNP (rs7549785) was included in the analysis.

  • SNPs Associated With HBsAg Clearance ≥24 Weeks Post-Treatment in CN Population: Dominant Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to dominant models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response. Only a single SNP (rs7549785) was included in the analysis.

  • SNPs Associated With HBsAg Clearance ≥24 Weeks Post-Treatment: Additive Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to additive models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response.

  • SNPs Associated With HBsAg Clearance ≥24 Weeks Post-Treatment: Dominant Model [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    GWAS approach was used to evaluate the association of SNPs with treatment response. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Associations with treatment response were analyzed using logistic regression and adjusted for covariates. Markers were coded according to dominant models of inheritance. Markers surpassing p-value thresholds of p<10^-5 and p<5x10^-8 were considered suggestive and genome-wide significant, respectively. Larger beta coefficients correspond to greater likelihood of treatment response. Only a single SNP (rs6592052) was included in the analysis.


Other Outcome Measures:
  • Number of Participants With HBeAg Seroconversion or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Positive Population [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    Single blood samples were used to analyze HBV serology and genotype data at least 24 weeks post-treatment. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs.

  • Number of Participants With HBeAg Seroconversion or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Positive CN Population [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    Single blood samples were used to analyze HBV serology and genotype data at least 24 weeks post-treatment. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs.

  • Number of Participants With HBeAg Seroconversion or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Positive Non-CN Population [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    Single blood samples were used to analyze HBV serology and genotype data at least 24 weeks post-treatment. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs.

  • Number of Participants With HBeAg Seroconversion Plus Undetectable HBV DNA or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Positive Population [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    Single blood samples were used to analyze HBV serology and genotype data at least 24 weeks post-treatment. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. HBeAg seroconversion and undetectable HBV DNA were a combined endpoint in this outcome measure.

  • Number of Participants With HBeAg Seroconversion Plus Undetectable HBV DNA or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Positive CN Population [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    Single blood samples were used to analyze HBV serology and genotype data at least 24 weeks post-treatment. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. HBeAg seroconversion and undetectable HBV DNA were a combined endpoint in this outcome measure.

  • Number of Participants With HBeAg Seroconversion Plus Undetectable HBV DNA or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Positive Non-CN Population [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    Single blood samples were used to analyze HBV serology and genotype data at least 24 weeks post-treatment. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. HBeAg seroconversion and undetectable HBV DNA were a combined endpoint in this outcome measure.

  • Number of Participants With Undetectable HBV DNA or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Negative Population [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    Single blood samples were used to analyze HBV serology and genotype data at least 24 weeks post-treatment. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs.

  • Number of Participants With Undetectable HBV DNA or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Negative CN Population [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    Single blood samples were used to analyze HBV serology and genotype data at least 24 weeks post-treatment. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs.

  • Number of Participants With Undetectable HBV DNA or HBsAg Clearance ≥24 Weeks Post-Treatment in HBeAg-Negative Non-CN Population [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    Single blood samples were used to analyze HBV serology and genotype data at least 24 weeks post-treatment. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs.

  • Number of Participants With HBeAg Seroconversion, HBsAg Clearance, or Undetectable HBV DNA ≥24 Weeks Post-Treatment [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    Single blood samples were used to analyze HBV serology and genotype data at least 24 weeks post-treatment. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL.

  • Number of Participants With HBeAg Seroconversion, HBsAg Clearance, or Undetectable HBV DNA ≥24 Weeks Post-Treatment in CN Population [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    Single blood samples were used to analyze HBV serology and genotype data at least 24 weeks post-treatment. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL.

  • Number of Participants With HBeAg Seroconversion, HBsAg Clearance, or Undetectable HBV DNA ≥24 Weeks Post-Treatment in Non-CN Population [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    Single blood samples were used to analyze HBV serology and genotype data at least 24 weeks post-treatment. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL.

  • Number of Participants With HBeAg Seroconversion Plus Undetectable HBV DNA, HBsAg Clearance, or Undetectable HBV DNA ≥24 Weeks Post-Treatment [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    Single blood samples were used to analyze HBV serology and genotype data at least 24 weeks post-treatment. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. HBeAg seroconversion and undetectable HBV DNA were a combined endpoint in this outcome measure.

  • Number of Participants With HBeAg Seroconversion Plus Undetectable HBV DNA, HBsAg Clearance, or Undetectable HBV DNA ≥24 Weeks Post-Treatment in CN Population [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    Single blood samples were used to analyze HBV serology and genotype data at least 24 weeks post-treatment. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. HBeAg seroconversion and undetectable HBV DNA were a combined endpoint in this outcome measure.

  • Number of Participants With HBeAg Seroconversion Plus Undetectable HBV DNA, HBsAg Clearance, or Undetectable HBV DNA ≥24 Weeks Post-Treatment in Non-CN Population [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    Single blood samples were used to analyze HBV serology and genotype data at least 24 weeks post-treatment. HBeAg seroconversion was defined as the loss of HBeAg and detection of anti-HBe. Undetectable HBV DNA was defined as an HBV DNA level below the LLD of 2000 IU/mL. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs. HBeAg seroconversion and undetectable HBV DNA were a combined endpoint in this outcome measure.

  • Number of Participants With HBsAg Clearance ≥24 Weeks Post-Treatment [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    Single blood samples were used to analyze HBV serology and genotype data at least 24 weeks post-treatment. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs.

  • Number of Participants With HBsAg Clearance ≥24 Weeks Post-Treatment in CN Population [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    Single blood samples were used to analyze HBV serology and genotype data at least 24 weeks post-treatment. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs.

  • Number of Participants With HBsAg Clearance ≥24 Weeks Post-Treatment in Non-CN Population [ Time Frame: Single blood sample ≥24 weeks post-treatment ] [ Designated as safety issue: No ]
    Single blood samples were used to analyze HBV serology and genotype data at least 24 weeks post-treatment. HBsAg clearance was defined as the loss of HBsAg, with or without detection of anti-HBs.


Biospecimen Retention:   Samples With DNA
Whole blood samples

Enrollment: 1669
Study Start Date: August 2013
Study Completion Date: November 2014
Primary Completion Date: November 2014 (Final data collection date for primary outcome measure)
Groups/Cohorts Assigned Interventions
Adult CHB Participants Treated With Peg-IFN Alfa-2a
Adult participants with CHB infection, and who have completed at least 24 weeks of Peg-IFN alfa-2a with/without nucleoside analogue therapy and at least 24 weeks of follow-up, will be included. Participants will be recruited from Roche clinical trials or general practice; no treatment will be administered in this non-interventional study.
Drug: Peg-IFN alfa-2a
Participants received Peg-IFN alfa-2a prior to enrollment for at least 24 weeks. Dosing was chosen according to standard of care or at the discretion of the treating physician.
Other Name: Pegasys

  Eligibility

Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
Participants with CHB who received therapy with Peg-IFN ± nucleoside/nucleotide analogue will be included.
Criteria

Inclusion Criteria:

  • Adults greater than or equal to (≥) 18 years of age
  • CHB
  • Previously enrolled in a Roche study and treated for CHB for ≥24 weeks with Peg-IFN ± nucleoside analogue (lamivudine or entecavir) or Peg-IFN ± nucleotide analogue (adefovir) and with ≥24 weeks post-treatment follow-up; or
  • Treated in general practice for CHB with Peg-IFN according to standard of care and in line with the current Summary of Product Characteristics (SmPC)/local labeling who have no contraindication to Peg-IFN therapy as per local label and have been treated with Peg-IFN for ≥24 weeks and have ≥24 week post-treatment response available at the time of blood sample collection

Exclusion Criteria:

  • Hepatitis A, hepatitis C, or human immunodeficiency virus (HIV) infection
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT01855997

  Hide Study Locations
Locations
Austria
Wien, Austria, 1090
Bulgaria
Sofia, Bulgaria, 1407
Varna, Bulgaria, 9010
China
Beijing, China, 100011
Beijing, China, 100039
Beijing, China, 100044
Beijing, China, 100069
Changsha, China, 410008
Chengdu, China, 610041
Chongqing, China, 400010
Fu Zhou, China, 350005
Guangzhou, China, 510515
Guangzhou, China, 510060
Guangzhou, China
Hangzhou, China
Harbin, China, 150001
Jinan, China, 250021
Nanjing, China, 210003
Nanning, China, 530021
Shanghai, China, 200021
Shanghai, China, 201508
Shen Zhen, China, 518020
Shi Jiazhuang, China, 050051
Urumqi, China, 830001
Wuhan, China, 430030
Xi'an, China, 710038
Yinchuan, China, 750004
Zhengzhou, China, 450003
France
Clichy, France, 92118
Creteil, France, 94010
Rennes, France, 35033
Saint Laurent Du Var, France, 06721
Germany
Berlin, Germany, 10117
Berlin, Germany, 10969
Berlin, Germany, 13353
Hamburg, Germany, 20099
Hannover, Germany, 30625
Greece
Athens, Greece, 115 27
Larissa, Greece, 41 110
Thessaloniki, Greece, 546 42
Italy
Caserta, Campania, Italy, 81100
Napoli, Campania, Italy, 80131
Bologna, Emilia-Romagna, Italy, 40138
Parma, Emilia-Romagna, Italy, 43100
Milano, Lombardia, Italy, 20122
Bari, Puglia, Italy, 70124
Castellana Grotte, Puglia, Italy, 70013
Cagliari, Sardegna, Italy, 09042
Palermo, Sicilia, Italy, 90127
Pisa, Toscana, Italy, 56124
Padova, Veneto, Italy, 35128
Korea, Republic of
Busan, Korea, Republic of, 633-165
Chooncheon, Korea, Republic of, 200-060
Seoul, Korea, Republic of, 135-710
New Zealand
Auckland, New Zealand, 100
Poland
Bydgoszcz, Poland, 85-030
Chorzow, Poland, 41-500
Krakow, Poland, 31-202
Lancut, Poland, 37-100
Warszawa, Poland, 01-201
Warszawa, Poland, 02-507
Zielona Góra, Poland, 65-044
Łodz, Poland, 91-347
Portugal
Lisboa, Portugal, 1649-035
Porto, Portugal, 4099-001
Porto, Portugal, 4202-451
Romania
Bucharest, Romania, 021105
Bucharest, Romania, 030303
Craiova, Romania, 200515
Taiwan
Changhua, Taiwan, 500
Kaohsiung, Taiwan, 00833
Kaohsiung, Taiwan, 807
Keelung City, Taiwan, 204
Taichung, Taiwan, 404
Taipei, Taiwan
Taipei, Taiwan, 112
Taipei, Taiwan, 100
Taoyuan, Taiwan, 333
Thailand
Bangkok, Thailand, 10700
Chiang Mai, Thailand, 50200
Songkhla, Thailand, 90112
United Kingdom
London, United Kingdom, E1 1BB
Manchester, United Kingdom, M13 9WL
Sponsors and Collaborators
Hoffmann-La Roche
Investigators
Study Director: Clinical Trials Hoffmann-La Roche
  More Information

Responsible Party: Hoffmann-La Roche
ClinicalTrials.gov Identifier: NCT01855997     History of Changes
Other Study ID Numbers: GV28855 
Study First Received: May 8, 2013
Results First Received: March 8, 2016
Last Updated: March 8, 2016
Health Authority: New Zealand: Ministry of Health

Additional relevant MeSH terms:
Hepatitis
Hepatitis A
Hepatitis, Chronic
Hepatitis B
Hepatitis B, Chronic
Liver Diseases
Digestive System Diseases
Hepatitis, Viral, Human
Virus Diseases
Enterovirus Infections
Picornaviridae Infections
RNA Virus Infections
Hepadnaviridae Infections
DNA Virus Infections
Peginterferon alfa-2a
Interferon-alpha
Antiviral Agents
Anti-Infective Agents
Immunologic Factors
Physiological Effects of Drugs

ClinicalTrials.gov processed this record on July 26, 2016