NCT05423834

Brief Summary

Tenofovir alafenamide (TAF), a novel prodrug of tenofovir (TFV), has been approved for the treatment of chronic hepatitis B virus (HBV) infection. TAF has been shown to be a potent inhibitor of HBV replication at a low dose, with high intracellular concentration and more than 90% lower systemic TFV concentration than tenofovir disoproxil fumarate (TDF). TAF has been approved in the clinical practice guidelines in the west. Since its availability in Asia in 2017, there have been evolving data concerning its positive impact on renal safety as shown in registration trials. The primary objective of this study is to compare the risk of chronic kidney disease (CKD) progression in chronic hepatitis B patients on TAF versus ETV in a territory-wide cohort in Hong Kong.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
1,800

participants targeted

Target at P75+ for all trials

Timeline
8mo left

Started Sep 2022

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress85%
Sep 2022Dec 2026

First Submitted

Initial submission to the registry

June 13, 2022

Completed
8 days until next milestone

First Posted

Study publicly available on registry

June 21, 2022

Completed
2 months until next milestone

Study Start

First participant enrolled

September 1, 2022

Completed
3.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 21, 2025

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Expected
Last Updated

February 8, 2023

Status Verified

February 1, 2023

Enrollment Period

3.3 years

First QC Date

June 13, 2022

Last Update Submit

February 6, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • CKD at 12 months

    To evaluate chronic kidney disease (CKD) progression at 12 months. The CKD progression is defined as an increase in CKD stage for at least 1 stage for at least 3 consecutive months during follow-up.

    12 months

Secondary Outcomes (1)

  • Change in eGFR

    12 months

Study Arms (2)

TAF-treated Chronic hepatitis B patients

Chronic hepatitis B patients that treated with Tenofovir alafenamide

Drug: Tenofovir alafenamide

ETV-treated Chronic hepatitis B patients

Chronic hepatitis B patients that treated with Entecavir

Drug: Entecavir

Interventions

Chronic hepatitis B patients who are receiving TAF as antiviral therapy for CHB, who were previously treatment naïve.

TAF-treated Chronic hepatitis B patients

Chronic hepatitis B patients who are receiving ETV as antiviral therapy for CHB, who were previously treatment naïve.

ETV-treated Chronic hepatitis B patients

Eligibility Criteria

Age18 Years - 90 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

CHB patients who are receiving TAF or ETV as antiviral therapy for CHB, who were either previously treatment naïve.

You may qualify if:

  • Positive hepatitis B surface antigen (HBsAg) or documented history of CHB for 6 months or more; AND
  • On TAF 25 mg daily as antiviral treatment for CHB (cases); OR
  • On ETV 0.5 to 1.0 mg daily as antiviral treatment for CHB (controls)

You may not qualify if:

  • Previous NA treatment prior to TAF or ETV
  • Positive antibody against hepatitis C, D, or human immunodeficiency virus (anti-HCV, anti-HDV, or anti-HIV)
  • Evidence of other autoimmune or metabolic liver diseases (except non-alcoholic fatty liver disease).
  • Moribund state including advanced/pre-terminal liver cancer or other non-hepatic cancers
  • Non-hepatic cancer undergoing chemotherapy within last 6 months

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Prince of Wales Hospital

Shatin, Hong Kong

Location

Related Publications (5)

  • Lo AO, Wong GL. Current developments in nucleoside/nucleotide analogues for hepatitis B. Expert Rev Gastroenterol Hepatol. 2014 Aug;8(6):607-22. doi: 10.1586/17474124.2014.909724. Epub 2014 Apr 30.

  • European Association for the Study of the Liver. EASL 2017 Clinical Practice Guidelines on the management of hepatitis B virus infection. J Hepatol. 2017 Aug;67(2):370-398. doi: 10.1016/j.jhep.2017.03.021. Epub 2017 Apr 18.

  • Sarin SK, Kumar M, Lau GK, Abbas Z, Chan HL, Chen CJ, Chen DS, Chen HL, Chen PJ, Chien RN, Dokmeci AK, Gane E, Hou JL, Jafri W, Jia J, Kim JH, Lai CL, Lee HC, Lim SG, Liu CJ, Locarnini S, Al Mahtab M, Mohamed R, Omata M, Park J, Piratvisuth T, Sharma BC, Sollano J, Wang FS, Wei L, Yuen MF, Zheng SS, Kao JH. Asian-Pacific clinical practice guidelines on the management of hepatitis B: a 2015 update. Hepatol Int. 2016 Jan;10(1):1-98. doi: 10.1007/s12072-015-9675-4. Epub 2015 Nov 13.

  • Terrault NA, Bzowej NH, Chang KM, Hwang JP, Jonas MM, Murad MH; American Association for the Study of Liver Diseases. AASLD guidelines for treatment of chronic hepatitis B. Hepatology. 2016 Jan;63(1):261-83. doi: 10.1002/hep.28156. Epub 2015 Nov 13. No abstract available.

  • Wong GL, Chan HL, Tse YK, Yip TC, Lam KL, Lui GC, Szeto CC, Wong VW. Chronic kidney disease progression in patients with chronic hepatitis B on tenofovir, entecavir, or no treatment. Aliment Pharmacol Ther. 2018 Nov;48(9):984-992. doi: 10.1111/apt.14945. Epub 2018 Aug 20.

MeSH Terms

Conditions

Hepatitis B, Chronic

Interventions

tenofovir alafenamideentecavir

Condition Hierarchy (Ancestors)

Hepatitis BBlood-Borne InfectionsCommunicable DiseasesInfectionsHepadnaviridae InfectionsDNA Virus InfectionsVirus DiseasesHepatitis, Viral, HumanHepatitis, ChronicHepatitisLiver DiseasesDigestive System DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
OTHER
Target Duration
12 Months
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Professor

Study Record Dates

First Submitted

June 13, 2022

First Posted

June 21, 2022

Study Start

September 1, 2022

Primary Completion

December 21, 2025

Study Completion (Estimated)

December 31, 2026

Last Updated

February 8, 2023

Record last verified: 2023-02

Data Sharing

IPD Sharing
Will not share

Locations