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NCT Number: NCT05686759

A Study to Investigate the Safety and Efficacy of Undiluted Intravenous Infusion of I.V.-Hepabig Inj.

The purpose of this study is to evaluate the efficacy and safety of undiluted intravenous infusion of I.V.-Hepabig inj. in post-liver transplant patients

Recruiting

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Key information

Age range

18 year–64 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 3

Primary location

National Cancer Center, Goyang-si, Gyeonggi-do, South Korea

Loading trial locations.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Aged ≥18 and <65 years at the time of signing the consent form
  • Subjects who had history of liver transplantation due to HBV-related end-stage liver disease such as cirrhosis, liver cancer and fulminant hepatic failure and received treatment for prevent hepatitis B recurrence
  • HBsAg(+) before liver transplantation
  • Subjects who have been received I.V.-Hepabig inj more than 3 times dose of 10,000International Unit/4weeks regimen

Exclusion criteria

  • Subject with history of anaphylaxis to any component of the investigational product
  • Pregnant or breast-feeding women
  • Deficiency of Immunoglobulin A
  • Clinically significant renal diseases (serum creatinine >2.0mg/dL, anuria, renal failure or on dialysis at screening)
  • Hemophilia
  • Co-infection with Hepatitis A Virus, Hepatitis C Virus, or Human Immunodeficiency Virus
  • Subject with history of malignancy within the last 5 years (excluding primary liver cancer)
  • Subject received estrogen or hormone replacement therapy within 3 months before screening
  • HBsAg or HBeAg or HBV DNA positive at screening
  • Anti HBs titer less than below criteria at screening <150 IU/L for subject whose HBeAg and HBV DNA were negative(-) before liver transplantation >500 IU/L for subject whose HBeAg or HBV DNA were positive(+) before liver transplantation
  • Subject with history of drug abuse
  • Participated in another clinical study within 30 days (relative to the last dose of investigational product) before screening
  • Subject who are determined disqualified to join clinical trials by investigator

Treatment and study plan

Undiluted I.V.-Hepabig inj(GC5103)

Biological

undiluted I.V.-Hepabig inj(GC5103) 10,000 International Unit

Diluted I.V.-Hepabig inj(GC5103)

Biological

Diluted I.V.-Hepabig inj(GC5103) 10,000 International Unit

Primary outcomes

  1. Adverse events occurred during clinical trials

    Time frame: during 20 weeks post first Investigational product administration

    Safety will be assessed throughout the study through clinical safety evaluations(Adverse events)

Secondary outcomes

  1. Positive rate of Hepatitis B Surface Antigen(HBsAg)

    Time frame: Screening, 0, 4, 8, 12, 16, and 20 weeks

    Hepatitis B Surface Antigen(HBsAg) will be tested at every visit(V1~V7)

  2. Hepatitis B Surface Antibody(Anti HBs) titer

    Time frame: Screening, 0, 4, 8, 12, 16, and 20 weeks

    Hepatitis B Surface Antibody(Anti HBs) titer will be tested at every visit(V1~V7)

  3. Positive rate of Hepatitis B e Antigen(HBeAg)

    Time frame: Screening, 0, 4, 8, 12, 16, and 20 weeks

    Hepatitis B e Antigen(HBeAg) will be tested at every visit(V1~V7)

  4. Positive rate of Hepatitis B Virus DNA(HBV DNA)

    Time frame: Screening, 0, 4, 8, 12, 16, and 20 weeks

    Hepatitis B Virus DNA(HBV DNA) will be tested at every visit(V1~V7)

  5. Laboratory tests

    Time frame: Screening, 0, 4, 8, 12, 16, and 20 weeks

    Change from baseline in safety laboratory tests results (hematology,chemistry, urine) (each visit)

  6. Vital signs

    Time frame: Screening, 0, 4, 8, 12, 16, and 20 weeks

    Change from baseline in vital sign (Blood Pressure, Pulse Rate, Body Temperature) (each visit)

  7. Physical examination

    Time frame: Screening, 0, 4, 8, 12, 16, and 20 weeks

    Change from baseline in physical examination (Appearance, Skin, Head/Neck, Thorax/Lungs etc) (each visit)

Study contacts

Contact information is provided by the study sponsor or research team.

Sponsors and collaborators

Lead sponsor

GC Biopharma Corp

Industry

Registry information

Official study title

A Phase 3b Study to Investigate the Safety and Efficacy of Undiluted Intravenous Infusion of I.V.-Hepabig Inj. in Post-liver Transplant Patients

Important dates

Study start
2023
Primary completion
2026
Study completion
2026
First posted
Jan 17, 2023
Registry last updated
Jun 25, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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