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AzTrials

Gastrointestinal CancersPhase 3NCT06966232

Prophylactic or Preemptive Entecavir in Patients With Gastrointestinal Cancer Who Are Inactive Hepatitis B Carriers

A Phase 3 study testing Entecavir in people with Gastrointestinal Cancers, run by Sun Yat-sen University at 1 site in China.

Recruiting

Looking for participants now. Contact the study team or a site below to ask about taking part.

Sites and contacts
Official record
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Trial summary

There has been no report on whether the patients with gastrointestinal cancer who are also inactive hepatitis B carriers should receive prophylactic use or preemptive use of an anti-viral drug entecavir during anti-tumor therapy. Read more about this study

Who is it for?
Ages 18 to 75 years
Conditions the study is for
Gastrointestinal Cancers
What is being tested?
Entecavir
Type of treatment
Pill or oral medicine
Could I receive a placebo?
No, everyone receives an active treatment
How many people
136 participants
Where
1 siteChina
Study dates
15 May 2025to 20 May 2027
Phase
Phase 3
Are there results?
Not yet: the study is under way

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 18 to 75 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients with age between 18 and 75
  • Patient with histology-proven locally advanced unresectable or metastatic gastrointestinal cancers (colorectal cancer, gastric cancer, esophageal cancer, hepatocellular carcinoma, pancreatic cancer, and cholangiocarcinoma)
  • Planned to receive first-, second-, or third-line anti-tumor therapy (chemotherapy or PD-1/PD-L1 monoclonal antibody immunotherapy)
  • Patients with Eastern Cooperative Oncology Group performance status (ECOG) of 0-2
  • Patients planned for at least 4 cycles of chemotherapy or immunotherapy
  • Patients with at least 6 months' life expectancy from date of recruitment
Show all 12Show fewer
  • Patients with chronic or past HBV infection (HBsAg-positive or HBcAb-positive), and hepatitis B is inactive
  • Patients with normal liver function tests including alanine aminotransferase (ALT), aspartate aminotransferase alkaline (AST), and bilirubin
  • Patients with negative HBV-DNA
  • Adequate major organ function (laboratory tests 14 days before randomization meeting requirements for anti-tumor therapy)
  • Patients who sign the informed consent
  • Patients with good compliance during chemotherapy and follow-ups.

Who cannot join

  • History of liver cirrhosis
  • Prior HBV reactivation
  • Received anti-HBV therapy for chronic hepatitis B within 6 months before enrollment
  • Active co-infection with other hepatitis viruses
  • HIV infection
  • Autoimmune hepatitis
Show all 12Show fewer
  • History of hepatic radiotherapy
  • Scheduled hepatic radiotherapy or radioisotope therapy
  • Pregnant or lactating women
  • Patients with a history of psychiatric drugs abuse and can't quit or with a mental disorder
  • Patients with immunodeficiency, other congenital or acquired immunodeficiency, or transplantation history
  • According to the investigators' judgment, patients with concomitant disease that seriously harms patients' safety or the completion of study.

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

Xu Rui-hua, M.D. Ph.D contact

+86-20-87343008

xurh@sysucc.org.cn

Wang Feng, M.D. Ph.D contact

+86-18620880867

fengwang@sysucc.org.cn

China1 site, 1 recruiting
  • Sun Yat-sen University Cancer Center

    Guangzhou, Guangdong, 510060

    Feng Wang, +86-20-87342479, wangfeng@sysucc.org.cn

    Recruiting

Other trials in China

About this study

Official title: An Open, Multicentre, Phase 3, Randomized Controlled Clinical Trial to Compare the Prophylactic Use or Preemptive Use of an Anti-viral Drug Entecavir in Patients With Gastrointestinal Cancer Who Are Inactive Hepatitis B Carriers

There has been no report on whether the patients with gastrointestinal cancer who are also inactive hepatitis B carriers should receive prophylactic use or preemptive use of an anti-viral drug entecavir during anti-tumor therapy. This open, multicentre, phase 3, randomized controlled clinical trial aims to compare the impact of the prophylactic use or preemptive use of an anti-viral drug entecavir on the outcomes of patients with gastrointestinal cancer who are also inactive hepatitis B carriers during chemotherapy or immunotherapy and the subsequent follow-ups, including two cohorts of chemotherapy and immunotherapy.

Read the detailed description

Patients with gastrointestinal cancer who are also inactive hepatitis B carriers are enrolled and randomized into two groups as following. Patients in experimental group are treated with entecavir prophylactically in the dose of 0.5mg p.o. every day from the initiation of chemotherapy or immunotherapy till 6 months after the end of chemotherapy or immunotherapy. Patients in active comparator group are only treated with entecavir in the dose of 0.5mg p.o. every day from the time that the DNA copies of hepatitis B virus become positive till 6 months after the end of chemotherapy or immunotherapy.

Being tested
Entecavir
Keywords
Gastrointestinal Cancers, Entecavir, Hepatitis B Carrier, Chemotherapy, Immunotherapy
Medical subject headings
Gastrointestinal Neoplasms

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • EntecavirDrug

    Also called Entecavir Dispersible Tablets

    anti hepatitis B virus

Study groups in NCT06966232
Study groupRoleWhat they receive
Prophylactic EntecavirExperimentalEntecavir is prophylactically used from the time of chemotherapy or immunotherapy initiation at the dose of 0.5 mg p.o daily till 6 months after the end of chemotherapy or immunotherapy .
Receives: Drug: Entecavir
Preemptive EntecavirActive comparatorEntecavir is preemptively used from the time that hepatitis B virus DNA copies become positive at the dose of 0.5 mg p.o daily till 6 months after the end of chemotherapy or immunotherapy.
Receives: Drug: Entecavir

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. The incidence of hepatitis B virus reactivation

    HBV reactivation is defined as (1) an increase in HBV-DNA levels by ≥2 log10 (100-fold) compared to baseline or conversion from negative serum HBV-DNA to positive HBV-DNA; (2) if baseline HBV-DNA was undetectable, achieving HBV-DNA levels ≥3 log10 (1,000 IU/mL); or (3) if baseline levels were unknown or unavailable, reaching HBV-DNA levels ≥4 log10 (10,000 IU/mL).

    Measured: through study completion, an average of 1 year

Secondary outcomes (6)
  1. Hepatitis

    Hepatitis is defined as a 3-fold or greater increase in the serum ALT level that exceeded the reference range or an absolute increase in the level of ALT of greater than 100 U/L compared with the baseline level

    Measured: through study completion, an average of 1 year

  2. Hepatitis B virus associated hepatitis

    Hepatitis B virus associated hepatitis is defined as hepatitis B virus (HBV) reactivation occurring prior to or concurrent with hepatitis during or following chemotherapy/immunotherapy , in the absence of clinical or laboratory evidence of acute infection by other hepatitis viruses or systemic diseases.

    Measured: through study completion, an average of 1 year

  3. Interruption of chemotherapy/immunotherapy due to hepatitis

    Chemotherapy/immunotherapy disruption due to hepatitis is defined as either premature termination or a delay of at least 7 days between therapy cycles due to hepatitis .

    Measured: through study completion, an average of 1 year

  4. Severe HBV associated hepatitis

    Severe HBV associated hepatitis is defined as grade 3 or higher HBV associated hepatitis according to the Common Terminology Criteria for Adverse Events (CTCAE) version 5.0.

    Measured: through study completion, an average of 1 year

  5. HBV associated acute liver failure

    HBV associated acute liver failure, also termed HBV associated fulminant hepatic failure , is defined as acute hepatic decompensation linked to HBV reactivation or acute exacerbation of HBV infection. It manifests within days to weeks, leading to severe complications such as coagulopathy, hepatic encephalopathy, and multiorgan failure, with a high 28-day mortality rate . Delayed initiation of nucleotide analogues may contribute to rapid disease progression and poor prognosis.

    Measured: through study completion, an average of 1 year

  6. HBV related death

    HBV related death is defined as mortality directly attributable to HBV reactivation

    Measured: through study completion, an average of 1 year

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 May 2025
  2. Study start15 May 2025 (estimated)
  3. Primary completion15 May 2027 (estimated)
  4. Study completion20 May 2027 (estimated)

Resources

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 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
136 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT06966232
Sponsor's protocol ID
GIC-HBV
Status last verified
Apr 2025
First submitted
2 May 2025
Last updated
11 May 2025
Results posted
No
Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Undecided

Publications

  • Perrillo RP, Gish R, Falck-Ytter YT. American Gastroenterological Association Institute technical review on prevention and treatment of hepatitis B virus reactivation during immunosuppressive drug therapy. Gastroenterology. 2015 Jan;148(1):221-244.e3. doi: 10.1053/j.gastro.2014.10.038. Epub 2014 Oct 31. No abstract available.

    PubMed 25447852
  • Huang H, Li X, Zhu J, Ye S, Zhang H, Wang W, Wu X, Peng J, Xu B, Lin Y, Cao Y, Li H, Lin S, Liu Q, Lin T. Entecavir vs lamivudine for prevention of hepatitis B virus reactivation among patients with untreated diffuse large B-cell lymphoma receiving R-CHOP chemotherapy: a randomized clinical trial. JAMA. 2014 Dec 17;312(23):2521-30. doi: 10.1001/jama.2014.15704.

    PubMed 25514302

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Entecavir in people with Gastrointestinal Cancers, run by Sun Yat-sen University at 1 site in China.

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 12 inclusion and 12 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: looking for participants now, as of the sponsor's last update on 11 May 2025. 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 China. 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 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

Contact Xu Rui-hua, M.D. Ph.D (+86-20-87343008, xurh@sysucc.org.cn), or a site near the patient. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

The incidence of hepatitis B virus reactivation (time frame: through study completion, an average of 1 year). 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 NCT06966232, which also lists 2 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 11 May 2025.

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