ClinicalTrials.gg
Not yet recruitingNCT07267208Updated Oct 28, 2026

A Prospective Study to Evaluate the Efficacy and Safety of Entecavir ODT Conversion in Stable Liver Transplant Patients

A Phase 2 interventional study of Entecavell ODT in Hepatitis B Virus and Liver Transplant, sponsored by Jongman Kim. Not yet recruiting. Open to participants aged 19 Years and older. Per ClinicalTrials.gov, last updated 2026-10-28.

Sponsored by Jongman Kim · Phase 2, Interventional, and Prevention

Updated Oct 28, 2026Start date movedGo to Updates ↓
Phase
Phase 2
Study type
Interventional
Enrollment
82
Allocation
Not applicable
Ages
19 Years and older
Sex
All
01

Study summary

This clinical study aims to evaluate the efficacy and safety of switching to entecavir orally disintegrating tablets (ETV-ODT) in liver transplant recipients with chronic hepatitis B, with a particular focus on the impact of the conversion on renal function.

After providing written informed consent, participants will undergo screening assessments to determine eligibility based on the inclusion and exclusion criteria. Eligible participants who receive the investigational product will visit the study site at predetermined time points over a 48-week period to complete the scheduled study procedures.

Read the detailed description

This study aims to evaluate the antiviral efficacy, safety, and potential improvement in medication adherence after converting stable liver transplant recipients to Entecabell ODT. Only participants who meet all inclusion and exclusion criteria will receive the investigational product. After conversion, participants will take Entecabell ODT 0.5 mg once daily for 48 weeks and will be followed according to the scheduled visits and assessments.

The primary objective of the study is to assess the impact of switching from entecavir tablets to Entecabell ODT on renal function in liver transplant recipients receiving entecavir for HBV prophylaxis. Secondary objectives include evaluating the antiviral effect against HBV and the potential improvement in medication adherence following conversion to Entecabell ODT.

02

Conditions studied

  • Hepatitis B Virus
  • Liver Transplant

Browse trials for

03

In context

Hepatitis B

1,045 studies on the registry are indexed under Hepatitis B; 139 are open to participants now.

This study's planned enrollment of 82 is below the median of 147 across 756 interventional studies indexed under Hepatitis B.

Browse Hepatitis B studies →

Lead sponsor

Jongman Kim is the lead sponsor of 2 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
19 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Patients aged 19 years or older.
  2. Patients who have maintained stable liver graft function for one year after liver transplantation due to and meet the following conditions:

    1. and ALT \< 35IU/L
    2. HBsAg: Negative
    3. HBV DNA: Not detected
  3. Patients who have been taking entecavir for HBV prophylaxis for at least 1 year.
  4. Patients with a tacrolimus trough level maintained between 3-10 ng/mL. 5 .Patients who have voluntarily decided to participate in the clinical trial after fully understanding the detailed explanation of the trial and have provided written consent.

Exclusion criteria

Exclusion Criteria:

  1. Patients who have undergone transplantation of organs other than the liver or re-transplantation.
  2. Patients who have received bioartificial liver system treatment or auxiliary partial orthotopic liver transplantation (APOLT) before the transplantation.
  3. Patients with concurrent viral infections (, ).
  4. Patients with \<30 or those undergoing dialysis
  5. Pregnant or breastfeeding women.
  6. Patients or their spouses/partners who do not agree to use medically acceptable and appropriate methods* during the clinical trial period.

    * Appropriate contraception methods: hormonal contraception, intrauterine device (IUC or IUS), tubal ligation, tubal occlusion, hysterectomy, vasectomy, double barrier methods (combined use of male or female condoms with cervical caps, diaphragms, or contraceptive sponges), single barrier methods with spermicide.

  7. Patients with a history of to Entecavir.
  8. Patients who are deemed unsuitable for participation in the clinical trial by the investigator.
Terms in these criteria, in plain language(7)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Hepatitis B tests

Hepatitis B is a virus that infects the liver. These are separate tests: HBsAg positive usually means a current infection (a recent vaccination can briefly cause it too); total anti-HBc (HBcAb) positive means an infection now or in the past; HBV DNA measures how much virus is in the blood.

Some studies accept a past infection if HBV DNA is undetectable, sometimes with antiviral medicine during the study. Check what this study allows.

ALT and AST (liver enzymes)

Two enzymes measured in a routine blood test of the liver. Higher levels can mean the liver is under strain or damaged. SGPT and SGOT are older names for ALT and AST.

Criteria usually give a limit as a multiple of the upper limit of normal (ULN), often higher when cancer has spread to the liver.

Hepatitis C tests

Hepatitis C is a virus that infects the liver. An HCV antibody test can stay positive after an infection has cleared (and is occasionally positive without one); an HCV RNA test shows whether the virus is there now.

After treatment, hepatitis C counts as cured when HCV RNA is still undetectable 12 weeks or more after the treatment ended. Studies often accept people cured this way.

HIV

The human immunodeficiency virus, which weakens the immune system.

Many studies now accept people whose HIV is controlled on treatment, judged by the viral load and the CD4 count. Check the limits this study sets.

GFR and eGFR (kidney filtering)

GFR (glomerular filtration rate) is how much blood the kidneys filter each minute. It is usually estimated from a blood test — eGFR, by formulas such as CKD-EPI or MDRD — and some studies ask for it to be measured directly instead. Usually given in mL/min/1.73 m².

Check the method, the units and the minimum the study states. A value of 90 or above is in the normal-or-high range, but kidney damage can show in other tests too.

Contraception

Ways of preventing pregnancy. “Highly effective” methods fail less than 1% of the time a year when used correctly — for example an IUD or an implant.

Criteria usually say which methods count and how long to keep using them after the last dose, sometimes for male participants too. Some studies accept a partner’s vasectomy if it was confirmed successful and that person is the participant’s only sexual partner.

Hypersensitivity

An allergy, or another reaction of the immune system, to a substance. “Hypersensitivity to the study drug” means a known allergic reaction to it — not every side effect a medicine can have.

05

Study design

Phase
Phase 2
Primary purpose
Prevention
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
82 participants (estimated)

Study arms

  • Experimental
    Entecavell ODT

    Entecavir ODT is administered once every day with 0.5mg PO

    Drug: Entecavell ODT

Interventions

  • DrugEntecavell ODT

    Entecavir ODT is administered once every day with 0.5mg PO for 48 weeks.

06

What researchers measure

Primary outcomes

  1. Change in eGFR at week 48

    Change in eGFR from baseline to week 48 following ETV-ODT conversion

    Time frame: Baseline to week 48

Secondary outcomes

  1. Change in Creatinine, cystatin C profile

    Change in Creatinine, cystatin C profile from baseline to week 48 following ETV-ODT conversion

    Time frame: Baseline to week 48

  2. Change in CKD stage

    Change in the proportion of participants by CKD stage from baseline to Week 48 following ETV-ODT conversion

    Time frame: Baseline to week 48

  3. Incidence of HBV recurrence

    Incidence of HBV recurrence

    Time frame: Baseline to week 48

  4. Change in cholesterol status, proteinuria and liver stiffness

    Change in cholesterol status (LDL, HDL, total cholesterol, triglycerides), proteinuria (protein-to-creatinine ratio and albumin-to-creatinine ratio), and liver stiffness by FibroScan from baseline to Week 48 following ETV-ODT conversion

    Time frame: Baseline to week 48

  5. Change in medication adherence

    Change in medication adherence from baseline to Week 48 following ETV-ODT conversion

    Time frame: Baseline to week 48

  6. Incidence of graft failure and mortality

    Incidence of graft failure and mortality

    Time frame: Baseline to week 48

07

Study locations

No study locations are listed for this record.

08

Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedDate before it movedWhere the date was before it movedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Dec 2026; primary completion for Dec 2027, 12 months later.

Of 50 phase 2 interventional studies under Hepatitis B, half reached primary completion within 30 months of starting (the median), counting those still running; a quarter within 19 and three quarters within 40. This study's planned 12 months is below that.

Start moved once since we started tracking on Sep 25, 2026: Dec 2025 → Dec 2026, on Oct 28, 2026.

Earlier changes are on the record history on ClinicalTrials.gov ↗

How these figures are worked out, and which studies are left out of them.

Registered
Nov 24, 2025
First posted
Dec 5, 2025
StartEst.
Dec 1, 2026was Dec 2025
Primary completionEst.
Dec 31, 2027
CompletionEst.
Dec 31, 2027
Last update
Oct 28, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Start date
Dec 1, 2025→Dec 1, 2026
Oct 28, 2026
Show all 1 update
  1. Oct 28, 2026
    Start date Dec 1, 2025→Dec 1, 2026
    + 1 other change: verification date

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

09

Registry details

Key details

Study ID
NCT07267208
Lead sponsor
Jongman Kim
Responsible party
Jongman Kim (Professor, Samsung Medical Center) — Sponsor-investigator
First posted
Dec 5, 2025
Start date
Dec 1, 2026 (estimated)
Primary completion
Dec 31, 2027 (estimated)
Completion
Dec 31, 2027 (estimated)
Last update
Oct 28, 2026

Study contacts

Jongman Kim, Ph, MD
Contact
jongman94.kim@samsung.com
+82-10-9365-0277
Jongman Kim, Ph, MD
Contact
Jongman Kim, Ph, MD
principal investigator · Samsung Medical Center

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion