Skip to main content
OpenTrials
Completed

NCT Number: NCT01320943

Stopping TDF Treatment After Long Term Virologic Suppression in HBeAg-negative CHB

The primary objective of this study is to evaluate hepatitis B surface antigen (HBsAg) loss and seroconversion in participants who stop tenofovir disoproxil fumarate (TDF) (Stop TDF arm) compared to participants who continue TDF (Continue TDF arm).

Only participants who already are on treatment with TDF monotherapy or TDF in combination with lamivudine or emtricitabine for at least 4 years and who achieved and maintained virologic suppression (< 400 copies/mL) for 3.5 or more years will be included in this study. One treatment arm will stop the TDF therapy while the other treatment arm will continue the TDF therapy. Participants in the Stop TDF arm will be monitored very closely with special focus on biochemical flares (especially alanine aminotransferase (ALT) increases) and virological relapses (Hepatitis B viral load increases). If any participant in the Stop TDF arm exceeds one or more predefined limits for such flares or relapses, TDF treatment will be reinstituted.

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Chronic Hepatitis B Blood-Borne Infections Chronic Disease Communicable Diseases DNA Virus Infections Digestive System Diseases Disease Attributes Genital Diseases HIV Infections HIV Seropositivity Hepadnaviridae Infections Hepatitis Hepatitis B Hepatitis B, Chronic Hepatitis, Chronic Hepatitis, Viral, Human Immune System Diseases Immunologic Deficiency Syndromes Infections Lentivirus Infections Liver Diseases Pathologic Processes Pathological Conditions, Signs and Symptoms RNA Virus Infections Retroviridae Infections Sexually Transmitted Diseases Sexually Transmitted Diseases, Viral Urogenital Diseases Virus Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

Charite CVK, Berlin, Germany

Loading trial locations.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Key Inclusion Criteria:

  • Chronic hepatitis B, hepatitis B e-antigen negative, hepatitis B e-antibody positive, and hepatitis B surface antigen-positive
  • Hepatitis B e Antigen (HBeAg)-negative at the beginning of TDF therapy (i.e. TDF monotherapy or combination of TDF + lamivudine or TDF + emtricitabine)
  • Received continuous TDF therapy (i.e. TDF monotherapy or combination of TDF + lamivudine or TDF + emtricitabine) treatment for at least 4 years prior to screening. If TDF has been used in combination with lamivudine or emtricitabine, lamivudine or emtricitabine must have been stopped at least 12 weeks prior to screening
  • Documented hepatitis B virus DNA (HBV DNA) < 400 copies/mL for at least 3.5 years prior to screening and at screening
  • ALT within normal range
  • α-fetoprotein (AFP) <= 50 ng/mL
  • Calculated creatinine clearance >= 70 mL/min by Cockcroft-Gault formula using ideal body weight
  • <= 10 kPa on Fibroscan assessment
  • A negative serum pregnancy test for female subjects
  • Adult subjects >= 18 years of age

Key Exclusion Criteria:

  • Known cirrhosis
  • Evidence of fibrosis >= Stage 3 (METAVIR) on liver biopsy or Fibroscan > 10 kPa within 6 months prior to screening
  • Documentation of confirmed episodes (i.e., 2 consecutive values) of HBV DNA > 400 copies/mL within 3.5 years prior to screening
  • History of decompensated liver disease (defined as direct [conjugated] bilirubin > 1.5 x upper limit of normal, prothrombin time (PT) > 1.5 x upper limit of normal, platelets < 75,000/mm³, serum albumin < 3.0 g/dL
  • History of clinical hepatic decompensation in the judgement of the investigator
  • Evidence of hepatocellular carcinoma
  • Significant bone disease (in the judgment of the investigator)
  • Serological evidence of coinfection with human immunodeficiency virus (HIV), hepatitis C virus, or hepatitis D infection
  • Known hypersensitivity to TDF, its metabolites, or formulation excipients
  • Concomitant therapy with disallowed medications
  • History of malignant disease
  • Lactating females
  • Females wishing to became pregnant during the duration of the stud
  • Subjects participating in another clinical trial can only be enrolled at the discretion of the Medical Monitor

Note: Other protocol defined inclusion/Exclusion criteria may apply.

Treatment and study plan

TDF

Drug

Tenofovir disoproxil fumarate (TDF) 300 mg tablet administered orally once daily

Other names: Viread®

Stop TDF

Other

Participants will stop TDF therapy

Primary outcomes

  1. Proportion of Participants With HBsAg Loss at Week 144 in Both Study Arms

    Time frame: Week 144

    HBsAg loss is defined as qualitative HBsAg result changing from positive at baseline (BL) to negative at any post-baseline visit. Proportions are based on a Kaplan-Meier estimate.

Secondary outcomes

  1. Proportion of Participants With HBsAg Seroconversion in Both Study Arms at Weeks 96 and 144

    Time frame: Weeks 96 and 144

    HBsAg seroconversion is defined as qualitative HBsAb result changing from negative at baseline to positive at any postbaseline visit. Proportions are based on the Kaplan-Meier estimate.

  2. Change From Baseline in Quantitative HBsAg (IU/mL) in Both Study Arms

    Time frame: Baseline to Week 144

    • The analyses were summarized by 3 treatment subgroups: Stop TDF (TDF-Free), Restart TDF, and Continue TDF
    • When participant randomized in the Stop TDF group restarted TDF therapy, that participant was considered part of the Restart TDF group from that point forward. For Restart TDF group, baseline is defined as the last available record on or prior to the restart date of TDF.

  3. Proportion of Participants Who Restart TDF Therapy in the Stop TDF Arm

    Time frame: Weeks 48, 96, and 144

  4. Percentage of Participants With Viral Suppression in the Stop TDF Arm (TDF-Free and Re-Start TDF Groups)

    Time frame: Baseline to Week 144

    Viral suppression is defined as 2 consecutive assessments of HBV DNA < 400 copies/mL (69 IU/mL) through Week 144.

  5. Percentage of Participants With Alanine Aminotransferase (ALT) > Upper Limit of the Normal Range in the Stop TDF Arm (TDF-Free and Restart TDF)

    Time frame: Baseline to Week 144

  6. Proportion of Participants With HBsAg Loss at Week 96 in Both Study Arms

    Time frame: Week 96

    HBsAg loss is defined as qualitative HBsAg result changing from positive at baseline (BL) to negative at any post-baseline visit. Proportions are based on a Kaplan-Meier estimate.

Sponsors and collaborators

Lead sponsor

Gilead Sciences

Industry

Registry information

Official study title

FINITE CHB - First Investigation in Stopping Tenofovir Disoproxil Fumarate (TDF) Treatment After Long Term Virologic Suppression in HBeAg-negative Chronic Hepatitis B

Acronym: FINITE CHB

Important dates

Study start
2011
Primary completion
2016
Study completion
2016
First posted
Mar 23, 2011
Registry last updated
Aug 29, 2017

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.