Tenofovir Alafenamide in HBV Related Decompensated Liver
2020年12月21日 更新者：Kaohsiung Medical University Chung-Ho Memorial Hospital
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.
調査の概要
研究の種類
介入
入学 (予想される)
100
段階
- フェーズ 4
連絡先と場所
このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。
研究連絡先
- 名前：Ming-Lung Yu, Professor
- 電話番号：7475 886-7-3121101
- メール：fish6069@gmail.com
研究場所
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Kaohsiung、台湾、807
- 募集
- Kaohsiung Medical University Hospital
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コンタクト：
- Ming-Lung Yu
- 電話番号：7475 +886-7-312-1101
- メール：fish6069@gmail.com
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-
参加基準
研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。
適格基準
就学可能な年齢
20年～100年 (大人、高齢者)
健康ボランティアの受け入れ
いいえ
受講資格のある性別
全て
説明
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.
研究計画
このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。
研究はどのように設計されていますか？
デザインの詳細
- 主な目的：処理
- 割り当て：非ランダム化
- 介入モデル：並列代入
- マスキング：なし（オープンラベル）
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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実験的：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.
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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.
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実験的：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.
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この研究は何を測定していますか？
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Complete virological suppression
時間枠：week 48
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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.
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week 48
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Rate of adverse events
時間枠：week 48
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Rate of adverse events including serious adverse events and discontinuation at Week 48
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week 48
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Rate of recovery from hepatic decompensation
時間枠：week 48, 96, and 144
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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.
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week 48, 96, and 144
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Liver transplant-free survival
時間枠：week 48, 96, and 144
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Liver transplant-free survival at week 48, 96, and 144 of TAF therapy in FAS, mFAS and PP populations.
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week 48, 96, and 144
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Rate of virological response
時間枠：week 96, and 144
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Rate of virological response (HBV DNA < 20 IU/ml) at week 96, and 144 of TAF therapy
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week 96, and 144
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Rate of ALT normalization
時間枠：week 48, 96, and 144
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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.
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week 48, 96, and 144
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Rate of HBeAg loss/seroconversion, HBsAg loss/seroconversion
時間枠：week 48, 96, and 144
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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.
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week 48, 96, and 144
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Changes of serum creatinine
時間枠：week 48, 96, and 144
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Changes of serum creatinine from baseline to week 48, 96, and 144 of TAF in mFAS and PP populations.
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week 48, 96, and 144
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Changes of calculated creatinine clearance
時間枠：week 48, 96, and 144
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Changes of calculated creatinine clearance (Cockcroft-Gault) from baseline to week 48, 96, and 144 of TAF in mFAS and PP populations.
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week 48, 96, and 144
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Changes in bone mineral density
時間枠：week 144
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Changes in bone mineral density from baseline to week 144 of TAF in mFAS and PP populations.
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week 144
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Changes in value of transient elastography
時間枠：week 144
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Changes in value of transient elastography (Fibroscan, kPa) from baseline to week 144 in mFAS and PP populations.
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week 144
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Changes in body mass index
時間枠：week 48, 96, and 144
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Changes in body mass index (BMI) from baseline to week 48, 96, and 144 of TAF in mFAS and PP populations.
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week 48, 96, and 144
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Changes in blood lipid profile
時間枠：week 48, 96, and 144
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Changes in fasting blood lipid profiles from baseline to week 48, 96, and 144 of TAF in mFAS and PP populations.
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week 48, 96, and 144
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Changes in blood glucose
時間枠：week 48, 96, and 144
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Changes in fasting blood glucose from baseline to week 48, 96, and 144 of TAF in mFAS and PP populations.
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week 48, 96, and 144
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協力者と研究者
ここでは、この調査に関係する人々や組織を見つけることができます。
捜査官
- 主任研究者：Ming-Lung Yu, Professor、Hepatobiliary Division, Kaohsiung Medical University Hospital
出版物と役立つリンク
研究に関する情報を入力する責任者は、自発的にこれらの出版物を提供します。これらは、研究に関連するあらゆるものに関するものである可能性があります。
一般刊行物
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研究記録日
これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。
主要日程の研究
研究開始 (実際)
2020年9月1日
一次修了 (予想される)
2021年1月31日
研究の完了 (予想される)
2025年4月1日
試験登録日
最初に提出
2020年11月12日
QC基準を満たした最初の提出物
2020年12月21日
最初の投稿 (実際)
2020年12月24日
学習記録の更新
投稿された最後の更新 (実際)
2020年12月24日
QC基準を満たした最後の更新が送信されました
2020年12月21日
最終確認日
2020年11月1日
詳しくは
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。