Improved Sensitivity Detection of Serum HBsAg and HBsAg Reversion

Last updated: August 8, 2024
Sponsor: Huashan Hospital
Overall Status: Active - Recruiting

Phase

N/A

Condition

Hepatitis B

Hepatitis

Treatment

N/A

Clinical Study ID

NCT06550622
2024-700
  • Ages 18-65
  • All Genders

Study Summary

The goal of this observational study is to learn about the HBsAg reversion rate at 48 weeks off treatment in HBsAg-negative patients by HBsAg NEXT assay which has improved sensitivity compared to current ARCHITECT HBsAg Assay.

The main question it aims to answer is:

What's the HBsAg reversion rate at 48 weeks off treatment in HBsAg-negative patients by HBsAg NEXT assay? HBsAg NEXT assay technology (lower limit of detection for HBsAg is 0.005 IU/ml) and current ARCHITECT HBsAg assay (lower limit of detection for HBsAg is 0.05 IU/ml) are applied for HBsAg detection in patients achieving functional cure, and to compare the difference in HBsAg reversion rate 48 weeks off treatment under the two types of criteria.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • HBsAg-negative by Abbott's HBsAg Test and HBeAg-negative;

  • Having serum specimens retained at baseline and at 48 weeks off treatment follow up;

  • Being willing to follow up regularly for 1 year.

Exclusion

Exclusion Criteria:

  • Patients with hepatitis B cirrhosis in the compensated and decompensated stages:this includes patients with a clear history of cirrhosis (imaging or histologicalevidence) or Child-Pugh score ≥5 prior to NUC treatment, or who have hadcomplications of the decompensated stage of cirrhosis, such as ascites, hepaticencephalopathy, or ruptured oesophago-gastric fundal varices bleeding;

  • Combined HAV, HCV, HDV, HEV, HIV infections, alcoholic liver disease, inheritedmetabolic liver disease, pharmacological liver disease, non-alcoholic fatty liverdisease, autoimmune liver disease and other chronic liver diseases;

  • Primary hepatocellular carcinoma or those with AFP greater than 100 ng/ml atscreening and imaging suggestive of possible malignant hepatic occupancy; orpatients with AFP greater than 100 ng/ml for a sustained period of 3 months;

  • Patients with a combination of other malignant tumours (excluding those who havebeen cured);

  • Patients with severe diseases or uncontrolled disease

  • Those who are also participating in other clinical studies;

  • Patients deemed unsuitable by the investigator to participate in this study.

Study Design

Total Participants: 300
Study Start date:
August 10, 2024
Estimated Completion Date:
August 10, 2027

Study Description

In this study, chronic hepatitis B patients who achieved HBsAg loss by current ARCHITECT HBsAg testing (lower limit of detection for HBsAg is 0.05 IU/ml) under interferon therapy and received consolidation therapy for 3 month after that were screened for eligibility. Those who are willing to discontinue were enrolled in the study. Patients were divided in two groups according to HBsAg levels，one with patients who were HBsAg-negative （HBsAg<0.005 IU/mL）by HBsAg next assay , and the other with patients who had HBsAg levels between 0.005 IU/mL and 0.05IU/mL. Patients were followed up for 48 weeks after discontinuation after HBsAg loss and HBsAg reversion rates in the two groups were analyzed and compared.

Connect with a study center

  • Fahong Li

    Shanghai, Shanghai 200040
    China

    Active - Recruiting

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