HBVPhase 4NCT04683341
Tenofovir Alafenamide in HBV Related Decompensated Liver
A Phase 4 study testing Tenofovir Alafenamide Tablets in people with HBV, run by Kaohsiung Medical University Chung-Ho Memorial Hospital at 1 site in Taiwan.
Trial summary
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. Read more about this study
- Who is it for?
- Ages 20 to 100 years
- Conditions the study is for
- HBV
- What is being tested?
- Tenofovir Alafenamide Tablets
- Type of treatment
- Pill or oral medicine
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 100 participants
- Where
- 1 siteTaiwan
- Study dates
- 1 Sep 2020to 1 Apr 2025
- Phase
- Phase 4
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 20 to 100 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- 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
Who cannot join
- 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.
Trial locations and contacts
1 site in 1 country.
Taiwan1 site, 1 recruiting
- Recruiting
Kaohsiung Medical University Hospital
Kaohsiung City, 807
Ming-Lung Yu, +886-7-312-1101 ext. 7475, fish6069@gmail.com
About this study
Official title: 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.
- Conditions
- HBV
- Being tested
- Tenofovir Alafenamide Tablets
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Tenofovir Alafenamide TabletsDrug
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.
| Study group | Role | What they receive |
|---|---|---|
| Arm A - initial TAF treatment group | Experimental | 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. Receives: Drug: Tenofovir Alafenamide Tablets |
| Arm B - switch to TAF treatment group | Experimental | 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 Receives: Drug: Tenofovir Alafenamide Tablets |
What is being measured
The primary outcome is the main question the study is designed to answer.
Complete virological suppression
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.
Measured: week 48
Secondary outcomes (13)
Rate of adverse events
Rate of adverse events including serious adverse events and discontinuation at Week 48
Measured: week 48
Rate of recovery from hepatic decompensation
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.
Measured: week 48, 96, and 144
Liver transplant-free survival
Liver transplant-free survival at week 48, 96, and 144 of TAF therapy in FAS, mFAS and PP populations.
Measured: week 48, 96, and 144
Rate of virological response
Rate of virological response (HBV DNA < 20 IU/ml) at week 96, and 144 of TAF therapy
Measured: week 96, and 144
Rate of ALT normalization
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.
Measured: week 48, 96, and 144
Rate of HBeAg loss/seroconversion, HBsAg loss/seroconversion
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.
Measured: week 48, 96, and 144
Changes of serum creatinine
Changes of serum creatinine from baseline to week 48, 96, and 144 of TAF in mFAS and PP populations.
Measured: week 48, 96, and 144
Changes of calculated creatinine clearance
Changes of calculated creatinine clearance (Cockcroft-Gault) from baseline to week 48, 96, and 144 of TAF in mFAS and PP populations.
Measured: week 48, 96, and 144
Changes in bone mineral density
Changes in bone mineral density from baseline to week 144 of TAF in mFAS and PP populations.
Measured: week 144
Changes in value of transient elastography
Changes in value of transient elastography (Fibroscan, kPa) from baseline to week 144 in mFAS and PP populations.
Measured: week 144
Changes in body mass index
Changes in body mass index (BMI) from baseline to week 48, 96, and 144 of TAF in mFAS and PP populations.
Measured: week 48, 96, and 144
Changes in blood lipid profile
Changes in fasting blood lipid profiles from baseline to week 48, 96, and 144 of TAF in mFAS and PP populations.
Measured: week 48, 96, and 144
Changes in blood glucose
Changes in fasting blood glucose from baseline to week 48, 96, and 144 of TAF in mFAS and PP populations.
Measured: week 48, 96, and 144
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted24 Dec 2020
- Study start1 Sep 2020
- Primary completion31 Jan 2021 (estimated)
- Study completion1 Apr 2025 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (13)Papers the sponsor has linked to this study.
- Other trials for HBVStudies of the same condition, open and under way.
- More trials run by Kaohsiung Medical University Chung-Ho Memorial HospitalThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase 4
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Model description
- 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, CHB patients with hepatic decompensation, who are currently not under HBV antiviral treatment will be enrolled. For Switch Arm, CHB patients who are currently with hepatic decompensation and virally suppressed under HBV NUC treatment (HBV DNA \< 20 IU/mL) will be enrolled.
- Masking
- None (open label)
- Enrolment
- 100 participants (estimated)
Sponsor and investigators
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Ming-Lung Yu, Professor, Principal investigator, Hepatobiliary Division, Kaohsiung Medical University Hospital
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT04683341
- Sponsor's protocol ID
- TAF-Deliver
- Status last verified
- Nov 2020
- First submitted
- 12 Nov 2020
- Last updated
- 24 Dec 2020
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- Yes
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Lavanchy D. Hepatitis B virus epidemiology, disease burden, treatment, and current and emerging prevention and control measures. J Viral Hepat. 2004 Mar;11(2):97-107. doi: 10.1046/j.1365-2893.2003.00487.x.
PubMed 14996343Liaw YF, Chu CM. Hepatitis B virus infection. Lancet. 2009 Feb 14;373(9663):582-92. doi: 10.1016/S0140-6736(09)60207-5.
PubMed 19217993Sarin 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.
PubMed 26563120European 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.
PubMed 28427875Terrault NA, Lok ASF, McMahon BJ, Chang KM, Hwang JP, Jonas MM, Brown RS Jr, Bzowej NH, Wong JB. Update on Prevention, Diagnosis, and Treatment of Chronic Hepatitis B: AASLD 2018 Hepatitis B Guidance. Clin Liver Dis (Hoboken). 2018 Aug 22;12(1):33-34. doi: 10.1002/cld.728. eCollection 2018 Jul. No abstract available.
PubMed 30988907Yao FY, Bass NM. Lamivudine treatment in patients with severely decompensated cirrhosis due to replicating hepatitis B infection. J Hepatol. 2000 Aug;33(2):301-7. doi: 10.1016/s0168-8278(00)80371-2.
PubMed 10952248Fontana RJ, Hann HW, Perrillo RP, Vierling JM, Wright T, Rakela J, Anschuetz G, Davis R, Gardner SD, Brown NA. Determinants of early mortality in patients with decompensated chronic hepatitis B treated with antiviral therapy. Gastroenterology. 2002 Sep;123(3):719-27. doi: 10.1053/gast.2002.35352.
PubMed 12198698Schiff E, Lai CL, Hadziyannis S, Neuhaus P, Terrault N, Colombo M, Tillmann H, Samuel D, Zeuzem S, Villeneuve JP, Arterburn S, Borroto-Esoda K, Brosgart C, Chuck S; Adefovir Dipivoxil Study 45 Intrnational Investigators Group. Adefovir dipivoxil for wait-listed and post-liver transplantation patients with lamivudine-resistant hepatitis B: final long-term results. Liver Transpl. 2007 Mar;13(3):349-60. doi: 10.1002/lt.20981.
PubMed 17326221Shim JH, Lee HC, Kim KM, Lim YS, Chung YH, Lee YS, Suh DJ. Efficacy of entecavir in treatment-naive patients with hepatitis B virus-related decompensated cirrhosis. J Hepatol. 2010 Feb;52(2):176-82. doi: 10.1016/j.jhep.2009.11.007. Epub 2009 Dec 16.
PubMed 20006394Liaw YF, Sheen IS, Lee CM, Akarca US, Papatheodoridis GV, Suet-Hing Wong F, Chang TT, Horban A, Wang C, Kwan P, Buti M, Prieto M, Berg T, Kitrinos K, Peschell K, Mondou E, Frederick D, Rousseau F, Schiff ER. Tenofovir disoproxil fumarate (TDF), emtricitabine/TDF, and entecavir in patients with decompensated chronic hepatitis B liver disease. Hepatology. 2011 Jan;53(1):62-72. doi: 10.1002/hep.23952. Epub 2010 Oct 27.
PubMed 21254162Chan HL, Fung S, Seto WK, Chuang WL, Chen CY, Kim HJ, Hui AJ, Janssen HL, Chowdhury A, Tsang TY, Mehta R, Gane E, Flaherty JF, Massetto B, Gaggar A, Kitrinos KM, Lin L, Subramanian GM, McHutchison JG, Lim YS, Acharya SK, Agarwal K; GS-US-320-0110 Investigators. Tenofovir alafenamide versus tenofovir disoproxil fumarate for the treatment of HBeAg-positive chronic hepatitis B virus infection: a randomised, double-blind, phase 3, non-inferiority trial. Lancet Gastroenterol Hepatol. 2016 Nov;1(3):185-195. doi: 10.1016/S2468-1253(16)30024-3. Epub 2016 Sep 22.
PubMed 28404091Buti M, Gane E, Seto WK, Chan HL, Chuang WL, Stepanova T, Hui AJ, Lim YS, Mehta R, Janssen HL, Acharya SK, Flaherty JF, Massetto B, Cathcart AL, Kim K, Gaggar A, Subramanian GM, McHutchison JG, Pan CQ, Brunetto M, Izumi N, Marcellin P; GS-US-320-0108 Investigators. Tenofovir alafenamide versus tenofovir disoproxil fumarate for the treatment of patients with HBeAg-negative chronic hepatitis B virus infection: a randomised, double-blind, phase 3, non-inferiority trial. Lancet Gastroenterol Hepatol. 2016 Nov;1(3):196-206. doi: 10.1016/S2468-1253(16)30107-8. Epub 2016 Sep 22.
PubMed 28404092Dai CY, Chuang WL, Hou NJ, Lee LP, Hsieh MY, Lin ZY, Chen SC, Huang JF, Hsieh MY, Wang LY, Tsai JF, Wen-Yu, Yu ML. Early mortality in Taiwanese lamivudine-treated patients with chronic hepatitis B-related decompensation: evaluation of the model for end-stage liver disease and index scoring systems as prognostic predictors. Clin Ther. 2006 Dec;28(12):2081-92. doi: 10.1016/j.clinthera.2006.12.016.
PubMed 17296464
Study at a glance
From the registry record, last updated by the sponsor on 24 Dec 2020. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Safety and Efficacy of Tenofovir Alafenamide for Chronic Hepatitis B Patients With Decompensated Liver Disease
- ClinicalTrials.gov ID
- NCT04683341
- Acronym / sponsor ID
- TAF-Deliver
- Conditions
- HBV
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 100 participants (estimated)
- Lead sponsor
- Kaohsiung Medical University Chung-Ho Memorial HospitalUniversity, hospital or other
- Study start
- 1 Sep 2020 (actual)
- Primary completion
- 31 Jan 2021 (estimated)
- Study completion
- 1 Apr 2025 (estimated)
- First posted
- 24 Dec 2020 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Study design
- Primary purpose
- Treatment
- Allocation
- Non-randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- 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, CHB patients with hepatic decompensation, who are currently not under HBV antiviral treatment will be enrolled. For Switch Arm, CHB patients who are currently with hepatic decompensation and virally suppressed under HBV NUC treatment (HBV DNA < 20 IU/mL) will be enrolled.
| Arm | Type | Receives |
|---|---|---|
| Arm A - initial TAF treatment group | Experimental | Drug: Tenofovir Alafenamide Tabletscirrhotic 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. |
| Arm B - switch to TAF treatment group | Experimental | Drug: Tenofovir Alafenamide Tabletscirrhotic 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 |
Who may qualify
- Ages
- 20 to 100 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (8 listed)
- 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).
Key exclusion criteria (8 listed)
- 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.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Tenofovir Alafenamide TabletsApproximately 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. | Drug | Arm A - initial TAF treatment group, Arm B - switch to TAF treatment group |
Primary outcome
Complete virological suppression
Time frame: 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.
13 secondary outcomes
Rate of adverse events
Time frame: week 48
Rate of recovery from hepatic decompensation
Time frame: week 48, 96, and 144
Liver transplant-free survival
Time frame: week 48, 96, and 144
Rate of virological response
Time frame: week 96, and 144
Rate of ALT normalization
Time frame: week 48, 96, and 144
Rate of HBeAg loss/seroconversion, HBsAg loss/seroconversion
Time frame: week 48, 96, and 144
Changes of serum creatinine
Time frame: week 48, 96, and 144
Changes of calculated creatinine clearance
Time frame: week 48, 96, and 144
Changes in bone mineral density
Time frame: week 144
Changes in value of transient elastography
Time frame: week 144
Changes in body mass index
Time frame: week 48, 96, and 144
Changes in blood lipid profile
Time frame: week 48, 96, and 144
Changes in blood glucose
Time frame: week 48, 96, and 144
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Dec 2020.
- Background: PubMed 14996343Lavanchy D. Hepatitis B virus epidemiology, disease burden, treatment, and current and emerging prevention and control measures. J Viral Hepat. 2004 Mar;11(2):97-107. doi: 10.1046/j.1365-2893.2003.00487.x.
- Background: PubMed 19217993Liaw YF, Chu CM. Hepatitis B virus infection. Lancet. 2009 Feb 14;373(9663):582-92. doi: 10.1016/S0140-6736(09)60207-5.
- Background: PubMed 26563120Sarin 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.
- Background: PubMed 28427875European 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.
- Background: PubMed 30988907Terrault NA, Lok ASF, McMahon BJ, Chang KM, Hwang JP, Jonas MM, Brown RS Jr, Bzowej NH, Wong JB. Update on Prevention, Diagnosis, and Treatment of Chronic Hepatitis B: AASLD 2018 Hepatitis B Guidance. Clin Liver Dis (Hoboken). 2018 Aug 22;12(1):33-34. doi: 10.1002/cld.728. eCollection 2018 Jul. No abstract available.
- Background: PubMed 10952248Yao FY, Bass NM. Lamivudine treatment in patients with severely decompensated cirrhosis due to replicating hepatitis B infection. J Hepatol. 2000 Aug;33(2):301-7. doi: 10.1016/s0168-8278(00)80371-2.
- Background: PubMed 12198698Fontana RJ, Hann HW, Perrillo RP, Vierling JM, Wright T, Rakela J, Anschuetz G, Davis R, Gardner SD, Brown NA. Determinants of early mortality in patients with decompensated chronic hepatitis B treated with antiviral therapy. Gastroenterology. 2002 Sep;123(3):719-27. doi: 10.1053/gast.2002.35352.
- Background: PubMed 17326221Schiff E, Lai CL, Hadziyannis S, Neuhaus P, Terrault N, Colombo M, Tillmann H, Samuel D, Zeuzem S, Villeneuve JP, Arterburn S, Borroto-Esoda K, Brosgart C, Chuck S; Adefovir Dipivoxil Study 45 Intrnational Investigators Group. Adefovir dipivoxil for wait-listed and post-liver transplantation patients with lamivudine-resistant hepatitis B: final long-term results. Liver Transpl. 2007 Mar;13(3):349-60. doi: 10.1002/lt.20981.
- Background: PubMed 20006394Shim JH, Lee HC, Kim KM, Lim YS, Chung YH, Lee YS, Suh DJ. Efficacy of entecavir in treatment-naive patients with hepatitis B virus-related decompensated cirrhosis. J Hepatol. 2010 Feb;52(2):176-82. doi: 10.1016/j.jhep.2009.11.007. Epub 2009 Dec 16.
- Background: PubMed 21254162Liaw YF, Sheen IS, Lee CM, Akarca US, Papatheodoridis GV, Suet-Hing Wong F, Chang TT, Horban A, Wang C, Kwan P, Buti M, Prieto M, Berg T, Kitrinos K, Peschell K, Mondou E, Frederick D, Rousseau F, Schiff ER. Tenofovir disoproxil fumarate (TDF), emtricitabine/TDF, and entecavir in patients with decompensated chronic hepatitis B liver disease. Hepatology. 2011 Jan;53(1):62-72. doi: 10.1002/hep.23952. Epub 2010 Oct 27.
- Background: PubMed 28404091Chan HL, Fung S, Seto WK, Chuang WL, Chen CY, Kim HJ, Hui AJ, Janssen HL, Chowdhury A, Tsang TY, Mehta R, Gane E, Flaherty JF, Massetto B, Gaggar A, Kitrinos KM, Lin L, Subramanian GM, McHutchison JG, Lim YS, Acharya SK, Agarwal K; GS-US-320-0110 Investigators. Tenofovir alafenamide versus tenofovir disoproxil fumarate for the treatment of HBeAg-positive chronic hepatitis B virus infection: a randomised, double-blind, phase 3, non-inferiority trial. Lancet Gastroenterol Hepatol. 2016 Nov;1(3):185-195. doi: 10.1016/S2468-1253(16)30024-3. Epub 2016 Sep 22.
- Background: PubMed 28404092Buti M, Gane E, Seto WK, Chan HL, Chuang WL, Stepanova T, Hui AJ, Lim YS, Mehta R, Janssen HL, Acharya SK, Flaherty JF, Massetto B, Cathcart AL, Kim K, Gaggar A, Subramanian GM, McHutchison JG, Pan CQ, Brunetto M, Izumi N, Marcellin P; GS-US-320-0108 Investigators. Tenofovir alafenamide versus tenofovir disoproxil fumarate for the treatment of patients with HBeAg-negative chronic hepatitis B virus infection: a randomised, double-blind, phase 3, non-inferiority trial. Lancet Gastroenterol Hepatol. 2016 Nov;1(3):196-206. doi: 10.1016/S2468-1253(16)30107-8. Epub 2016 Sep 22.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Ming-Lung Yu, Professor principal investigator
Hepatobiliary Division, Kaohsiung Medical University Hospital
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 4 study testing Tenofovir Alafenamide Tablets in people with HBV, run by Kaohsiung Medical University Chung-Ho Memorial Hospital at 1 site in Taiwan.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 8 inclusion and 8 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: status not confirmed, as of the sponsor's last update on 24 Dec 2020. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Taiwan. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
What does this phase mean?
Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.
Not every study follows the same path, and some studies (observational studies, device studies) have no phase.
Are results available for this study?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Ming-Lung Yu, Professor (886-7-3121101 ext. 7475, fish6069@gmail.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Complete virological suppression (time frame: week 48). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT04683341, which also lists 13 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Dec 2020.