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Tenofovir Alafenamide in HBV Related Decompensated Liver

Safety and Efficacy of Tenofovir Alafenamide for Chronic Hepatitis B Patients With Decompensated Liver Disease

TAF is a new prodrug of tenofovir, specifically designed to achieve higher intracellular active drug concentration allowing for dosing of only 25 mg once daily and thus can potentially lower the already relatively low risk of renal toxicity and bone loss with TDF. However, such renal and bone complications with TDF may become more pronounced in decompensated CHB patients10. In the phase 3 trials11, 12, TAF had demonstrated a compatible antiviral effect (noninferior efficacy), and a higher rate of alanine aminotransferase (ALT) normalization to TDF. TAF also demonstrated an improved renal function and less bone loss compared to TDF. Therefore, TAF was approved as the first line therapy for CHB patients with compensated liver function. The lack of data regarding TAF therapy in decompensated CHB patients raised the concern of safety and efficacy of TAF in this group of patients. A small, single arm Phase 2 switch study (GS-US-320-4035; Study 4035; NCT03180619) which has enrolled 31 subjects with CPT scores ≥7, either at time of screening or by history, who were virally suppressed on TDF and/or other oral antiviral agents is currently underway with favorable safety and efficacy results through 48 weeks.[Lim YS, Lin CY, Heo J, et al. EASL 2020, poster SAT442.] While Gilead Study 4035 will continue through 96 weeks of treatment, additional data in this population are thus needed, particularly in CHB patients who have decompensated liver disease and are not being treated and are viremic. Herein, we conduct the present study and aim to investigate the safety and efficacy of TAF in CHB patients with hepatic decompensation.

Studie Overzicht

Toestand

Werving

Conditie

Studietype

Ingrijpend

Inschrijving (Verwacht)

100

Fase

  • Fase 4

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studiecontact

  • Naam: Ming-Lung Yu, Professor
  • Telefoonnummer: 7475 886-7-3121101
  • E-mail: fish6069@gmail.com

Studie Locaties

      • Kaohsiung, Taiwan, 807
        • Werving
        • Kaohsiung Medical University Hospital
        • Contact:

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

20 jaar tot 100 jaar (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  • Male or non-pregnant female, age ≥20 years
  • Chronic HBV infection with positive hepatitis B surface antigen (HBsAg) for at least 6 months at screening.
  • Hepatic decompensation, defined as Child-Turcotte-Pugh (CTP) score ≥7, or the presence of portal hypertension related complications including ascites, hepatic encephalopathy (<grade 2) at screening.
  • HBV NUC treatment naïve or experienced (except prior TAF) for Arm A or currently under HBV NUC treatment (except TAF) with HBV DNA < 20 IU/mL within 6 months prior screening for Arm B.
  • Patients with either liver cirrhosis or non-cirrhosis (defined by histology, non-invasive assessments, or imaging/clinical based diagnosis).
  • Estimated creatinine clearance ≥30 ml/min (using the Cockcroft-Gault method) at screening. (Note: multiply estimated rate by 0.85 for women).
  • Willing and able to provide informed consent
  • Able to comply with dosing instructions for study drug administration and able to complete the study schedule of assessments

Exclusion Criteria:

  • Pregnant women, women who are breast feeding or who believe they may wish to become pregnant during the course of the study.
  • Previous recipient of a solid organ (including liver), or bone marrow transplant.
  • Severe or uncontrolled comorbidities determined by the Investigator.
  • Currently ≥grade 2 hepatic encephalopathy, currently or history (within 60 days) of variceal bleeding, hepatorenal syndrome, refractory ascites or spontaneous bacterial peritonitis; cytopenia of absolute neutrophil count < 750/mm3, or hemoglobin < 8 g/dL, or platelet <30000/mm3; or MELD score ≥30 at screening.
  • Malignancy history including hepatocellular carcinoma, except basal cell skin cancer without recurrence for more than 5 years.
  • Acute exacerbation of HBV, defined as an elevation of alanine aminotransferase (ALT) activity to more than 10 times the upper limit of normal and more than twice the baseline value.
  • On any of the disallowed concomitant medications listed in the prior and concomitant medications list (pg. 16). Subjects on prohibited medications who are otherwise eligible will need a wash out period of at least 30 days prior to the Screening.
  • Males and females of reproductive potential who are unwilling to use "effective" protocol-specified method(s) of contraception during the study.

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: Niet-gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Geen (open label)

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Arm A - initial TAF treatment group
cirrhotic or non-cirrhotic CHB patients with hepatic decompensation and HBV NUC treatment naïve or experienced (except prior TAF) will receive initial treatment (Arm A) with TAF 25 mg/day.
Approximately 100 adults, cirrhotic or non-cirrhotic (capped at 50), CHB patients with hepatic decompensation, will receive initial treatment (Arm A) with or switch (Arm B) to TAF 25 mg/day for 144 weeks. For Initiation Arm (Arm A), CHB patients with hepatic decompensation, who are currently not under HBV antiviral treatment will be enrolled. For Switch Arm (Arm B), CHB patients who are currently with hepatic decompensation and virally suppressed under HBV NUC treatment (HBV DNA < 20 IU/mL) will be enrolled.
Experimenteel: Arm B - switch to TAF treatment group
cirrhotic or non-cirrhotic CHB patients with hepatic decompensation and currently under HBV NUC treatment (except TAF) with HBV DNA < 20 IU/mL within 6 months prior screening will switch (Arm B) to TAF 25 mg/day
Approximately 100 adults, cirrhotic or non-cirrhotic (capped at 50), CHB patients with hepatic decompensation, will receive initial treatment (Arm A) with or switch (Arm B) to TAF 25 mg/day for 144 weeks. For Initiation Arm (Arm A), CHB patients with hepatic decompensation, who are currently not under HBV antiviral treatment will be enrolled. For Switch Arm (Arm B), CHB patients who are currently with hepatic decompensation and virally suppressed under HBV NUC treatment (HBV DNA < 20 IU/mL) will be enrolled.

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Complete virological suppression
Tijdsspanne: week 48
Proportion of patients treated with TAF who achieve complete virological suppression (HBV DNA < 20 IU/ml) at week 48 of TAF therapy in per-protocol (PP) population.
week 48

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Rate of adverse events
Tijdsspanne: week 48
Rate of adverse events including serious adverse events and discontinuation at Week 48
week 48
Rate of recovery from hepatic decompensation
Tijdsspanne: week 48, 96, and 144
Rate of recovery from hepatic decompensation (improvement of CTP score ≥1) at week 48, 96, and 144 of TAF therapy in FAS, modified FAS (mFAS) and PP populations.
week 48, 96, and 144
Liver transplant-free survival
Tijdsspanne: week 48, 96, and 144
Liver transplant-free survival at week 48, 96, and 144 of TAF therapy in FAS, mFAS and PP populations.
week 48, 96, and 144
Rate of virological response
Tijdsspanne: week 96, and 144
Rate of virological response (HBV DNA < 20 IU/ml) at week 96, and 144 of TAF therapy
week 96, and 144
Rate of ALT normalization
Tijdsspanne: week 48, 96, and 144
Rate of ALT normalization by local (<40 U/L), and AASLD (male ≤35, female ≤25 U/L) criteria at week 48, 96, and 144 of TAF therapy in FAS, mFAS and PP populations.
week 48, 96, and 144
Rate of HBeAg loss/seroconversion, HBsAg loss/seroconversion
Tijdsspanne: week 48, 96, and 144
Rate of HBeAg loss/seroconversion in baseline HBeAg-seropositive patients, HBsAg loss/seroconversion, and change in HBsAg titer at week 48, 96, and 144 of TAF therapy.
week 48, 96, and 144
Changes of serum creatinine
Tijdsspanne: week 48, 96, and 144
Changes of serum creatinine from baseline to week 48, 96, and 144 of TAF in mFAS and PP populations.
week 48, 96, and 144
Changes of calculated creatinine clearance
Tijdsspanne: week 48, 96, and 144
Changes of calculated creatinine clearance (Cockcroft-Gault) from baseline to week 48, 96, and 144 of TAF in mFAS and PP populations.
week 48, 96, and 144
Changes in bone mineral density
Tijdsspanne: week 144
Changes in bone mineral density from baseline to week 144 of TAF in mFAS and PP populations.
week 144
Changes in value of transient elastography
Tijdsspanne: week 144
Changes in value of transient elastography (Fibroscan, kPa) from baseline to week 144 in mFAS and PP populations.
week 144
Changes in body mass index
Tijdsspanne: week 48, 96, and 144
Changes in body mass index (BMI) from baseline to week 48, 96, and 144 of TAF in mFAS and PP populations.
week 48, 96, and 144
Changes in blood lipid profile
Tijdsspanne: week 48, 96, and 144
Changes in fasting blood lipid profiles from baseline to week 48, 96, and 144 of TAF in mFAS and PP populations.
week 48, 96, and 144
Changes in blood glucose
Tijdsspanne: week 48, 96, and 144
Changes in fasting blood glucose from baseline to week 48, 96, and 144 of TAF in mFAS and PP populations.
week 48, 96, and 144

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Onderzoekers

  • Hoofdonderzoeker: Ming-Lung Yu, Professor, Hepatobiliary Division, Kaohsiung Medical University Hospital

Publicaties en nuttige links

De persoon die verantwoordelijk is voor het invoeren van informatie over het onderzoek stelt deze publicaties vrijwillig ter beschikking. Dit kan gaan over alles wat met het onderzoek te maken heeft.

Algemene publicaties

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start (Werkelijk)

1 september 2020

Primaire voltooiing (Verwacht)

31 januari 2021

Studie voltooiing (Verwacht)

1 april 2025

Studieregistratiedata

Eerst ingediend

12 november 2020

Eerst ingediend dat voldeed aan de QC-criteria

21 december 2020

Eerst geplaatst (Werkelijk)

24 december 2020

Updates van studierecords

Laatste update geplaatst (Werkelijk)

24 december 2020

Laatste update ingediend die voldeed aan QC-criteria

21 december 2020

Laatst geverifieerd

1 november 2020

Meer informatie

Termen gerelateerd aan deze studie

Plan Individuele Deelnemersgegevens (IPD)

Bent u van plan om gegevens van individuele deelnemers (IPD) te delen?

NEE

Informatie over medicijnen en apparaten, studiedocumenten

Bestudeert een door de Amerikaanse FDA gereguleerd geneesmiddel

Ja

Bestudeert een door de Amerikaanse FDA gereguleerd apparaatproduct

Nee

product vervaardigd in en geëxporteerd uit de V.S.

Ja

Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .

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