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Completed

NCT Number: NCT05753280

Effect of Serum Vitamin D Level on the Efficacy of Peg-interferon Treatment in CHB

In recent years, vitamin D (VD) has received much attention in the fields of host immune regulation, inflammation, fibrosis, cell proliferation and differentiation and tumor. VD works by binding to the vitamin D receptor (VDR). VDR is mainly distributed in giant cells, dendritic cells, T cells and lymphocytes. Four SNPs of VDRS have been most studied: TaqI (rs731236), FokI (rs10735810), ApaI (rs7975232), and BsmI (rs1544410). At present, more and more patients have been treated with oral nucleotide/nucleoside analogues (NAs) with direct antiviral drugs in China, and a large part of them show low expression of HBsAg. Clinical cure can be pursued for these patients, that is, HBsAg turns negative. A number of studies have been carried out at home and abroad.

In this study, We will recruit CHB patients with low HBsAg levels. They all will receive pegylated interferon treatment and were randomly assigned to a vitamin D treatment or a control group. A final assessment will be made to determine whether vitamin D levels would affect the clearance rate of HBsAg.

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Key information

Conditions

Chronic Hepatitis B Blood-Borne Infections Chronic Disease Communicable Diseases DNA Virus Infections Digestive System Diseases Disease Attributes Hepadnaviridae Infections Hepatitis Hepatitis B Hepatitis B, Chronic Hepatitis, Chronic Hepatitis, Viral, Human Infections Liver Diseases Pathologic Processes Pathological Conditions, Signs and Symptoms Virus Diseases

Age range

18 year–60 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Phase 4

Primary location

Department of Infectious Diseases, The Third Affliated Hospital of Sun Yat-sen University

Guangzhou, Guangdong, 510630, China

Who can participate

Healthy volunteers accepted: No

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

Inclusion criteria

1.According with the diagnosis of chronic hepatitis B in the guideline of China in 2015 2.18-60 years old 3.More than 1 year history of nucleot(s)ide analogues therapy with HBsAg ≤1500 IU/ml, negative HBeAg and HBV DNA<100 IU/ml 4.No contraindications of interferon

Exclusion criteria

  • Allergy to interferon
  • Alanine transaminase >10 times of upper limit of normal(ULN) or total bilirubin >2 times of ULN
  • existing or previous decompensated liver cirrhosis
  • White blood cells or Platelet below the lower limit of normal
  • existing severe organ injury
  • combined with autoimmune diseases, psychiatric diseases, diabetes or thyroidism
  • confirmed or suspected malignant tumors
  • before or after transplantation
  • using immunosuppressor
  • pregnant or having a planned parenthood in 2 years
  • alcohol or drug addicted
  • infected by HIV
  • any conditions that is unsuitable to interferon therapy according to the doctors' judgement

Treatment and study plan

Vitamin D

Drug

Patients take 800 mg vitamin D capsules daily during the whole treatment period

Primary outcomes

  1. hepatitis B surface antigen

    Time frame: up to 48 weeks

    hepatitis B surface antigen should be tested by the reagents from Roche or Abbott, which is expressed by using IU/ml.

Secondary outcomes

  1. hepatitis B surface antibody

    Time frame: every 12 weeks for up to 48 weeks

    hepatitis B surface antigen should be tested by the reagents from Roche or Abbott, which is expressed by using IU/ml

Sponsors and collaborators

Lead sponsor

Third Affiliated Hospital, Sun Yat-Sen University

Other

Registry information

Official study title

Effect of Serum Vitamin D Level and Vitamin D Receptor on the Efficacy of Pegylated Interferon in Patients With Chronic Hepatitis B With Low Level HBsAg Treated by Nucleos(t)Ide Analogues

Important dates

Study start
2018
Primary completion
2022
Study completion
2022
First posted
Mar 3, 2023
Registry last updated
Mar 3, 2023

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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