Epstein-Barr Virus Reactivation and the Effect of EGCG on Virus Reactivation in Remission Patients

NCT ID: NCT01744587

Last Updated: 2025-08-15

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

353 participants

Study Classification

INTERVENTIONAL

Study Start Date

2013-04-30

Study Completion Date

2023-05-16

Brief Summary

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The purpose of this study is to investigate the EBV reactivation rate in post-radiation and remission NPC patients, evaluate the safety and tolerance of EGCG and analyze the observational correlation between EBV reactivation and clinical outcome.

Detailed Description

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Patients with pathologically proven NPC, stage II-IVB and finishing curative RT ≧70 Gy within 6 months (± induction/concurrent/adjuvant chemotherapy) will be candidates for this study. Before entry, 8 CC venous blood will be obtained for EBV DNA and antibody screen tests after patient's consent. Those who have undetectable plasma EBV DNA (0 copy/ml) and fulfilled with all inclusion and exclusion criteria will be registered.

Routine re-staging work-ups after RT should show no active lesion in nasopharynx, neck and distant organs. Re-staging survey should include nasopharyngoscope, pEBV DNA assay, CBC, platelet count, renal and liver function tests, CXR, abdominal sonography or CT scan, whole body bone scan, MRI or CT scan of the head and neck region.

Within one week after finishing registration, EGCG or placebo should be started. A blood sample before taking EGCG/placebo will be collected for antibodies test and pEBV DNA assay.

Conditions

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NPC

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Participants

Study Groups

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Placebo

Placebo qd (2# bid) for 3 years

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DIETARY_SUPPLEMENT

Placebo qd (2# bid) for 3 years

Epigallocatechin Gallate (EGCG)

EGCG 600 mg qd (2# bid) for 3 years

Group Type EXPERIMENTAL

Epigallocatechin Gallate (EGCG)

Intervention Type OTHER

EGCG 600 mg per day will be provided to the test group.Four capsules will be taken daily (2# bid) by the test individuals.

Interventions

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Epigallocatechin Gallate (EGCG)

EGCG 600 mg per day will be provided to the test group.Four capsules will be taken daily (2# bid) by the test individuals.

Intervention Type OTHER

Placebo

Placebo qd (2# bid) for 3 years

Intervention Type DIETARY_SUPPLEMENT

Other Intervention Names

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EGCHAC-purified EGCG 90% capsules

Eligibility Criteria

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Inclusion Criteria

* Histologically proven NPC.
* 2010 AJCC stage II-IVB.
* Age ≧ 20 years old.
* Performance status of ECOG ≦ 2.
* Finished RT ≧66 Gy within 6 months (± induction/concurrent/adjuvant chemotherapy).
* Clinical complete remission by re-staging work-ups within 3 months before entry.
* Plasma EBV DNA = 0 copy/ml within 4 weeks before entry.
* Adequate liver, renal, and bone marrow function:Serum total bilirubin level ≦ 2.5 mg/dl. Serum creatinine ≦ 1.6 mg/dl. WBC ≧ 3,000/ul. Platelet count ≧ 100,000/ul.
* No intake of EGCG or similar dietary supplements.
* Signed informed consent.
* No further anti-cancer treatment.

Exclusion Criteria

* Occurrence of locoregional recurrence or distant metastasis.
* Inadequate RT or finishing RT \> 6 months.
* Not complete remission by re-staging work-ups within 3 months before entry.
* Plasma EBV DNA \> 0 copy/ml within 4 weeks before entry.
* Intake of EGCG or similar dietary supplements during recent 3 months.
* Severe cardiopulmonary diseases (unstable angina and/or congestive heart failure or peripheral vascular disease requiring hospitalization within the last 12 months; chronic obstructive pulmonary disease exacerbation other respiratory illness requiring hospitalization) or clinically significant psychiatric disorders.
Minimum Eligible Age

20 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Mackay Memorial Hospital

OTHER

Sponsor Role collaborator

Taichung Veterans General Hospital

OTHER

Sponsor Role collaborator

National Cheng-Kung University Hospital

OTHER

Sponsor Role collaborator

Chang Gung Memorial Hospital

OTHER

Sponsor Role collaborator

China Medical University Hospital

OTHER

Sponsor Role collaborator

National Taiwan University Hospital

OTHER

Sponsor Role collaborator

National Health Research Institutes, Taiwan

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Tsang Wu Liu, MD

Role: STUDY_DIRECTOR

Taiwan Cooperative Oncology Group, National Health Research Institutes

Jin Ch Lin, MD PHD

Role: PRINCIPAL_INVESTIGATOR

Taichung Veterans General Hospital

Jen Ya Chen, PHD

Role: PRINCIPAL_INVESTIGATOR

National Institute of Cancer Research, National Health Research Institutes

Locations

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Taiwan Cooperative Oncology Group, National Health Research Institutes

Zhunan, Miaoli, Taiwan

Site Status

Countries

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Taiwan

Other Identifiers

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T2312

Identifier Type: -

Identifier Source: org_study_id

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