Use of Gender, Age, Alfa-fetoprotein (AFP), and Des-gamma-carboxyprothrombin (PIVKA-II) or GAAD Score in Addition to Ultrasound for Surveillance of People At-risk for Developing Hepatocellular Carcinoma in Asia in Order to Detect Early Liver Cancer
STOPHCC-GAAD
A Prospective, Interventional, Longitudinal Asia Pacific Study Evaluating Clinical Utility of Des-gamma-carboxyprothrombin (PIVKA-II) or GAAD Score Plus Ultrasound for Detection of Hepatocellular Carcinoma (HCC) in a High-risk Patient Population
1 other identifier
interventional
2,100
1 country
1
Brief Summary
HCC surveillance is currently limited by underutilization and the suboptimal performance of AFP. This prospective, single-arm study investigates whether the GAAD score (Gender, Age, AFP, and PIVKA-II) enhances HCC detection when added to standard-of-care surveillance. High-risk patients will undergo US plus GAAD score testing every six months for two years. The primary analysis compares the relative true positive rate (rTPR) and relative false positive rate (rFPR) of surveillance modalities (US, AFP, GAAD) against combined strategies (US+AFP; US+GAAD), utilizing a 2.57 GAAD cut-off. Secondary endpoints include longitudinal biomarker kinetics, early-stage HCC detection rates, and the impact on downstream imaging (CT/MRI) volume. Ultimately, this study seeks to define the role of GAAD as a surveillance adjunct and inform future clinical guidelines for biomarker-enhanced HCC screening.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Feb 2026
Longer than P75 for not_applicable
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
December 6, 2025
CompletedFirst Posted
Study publicly available on registry
December 23, 2025
CompletedStudy Start
First participant enrolled
February 2, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
February 2, 2029
ExpectedStudy Completion
Last participant's last visit for all outcomes
July 31, 2030
April 24, 2026
April 1, 2026
3 years
December 6, 2025
April 23, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (3)
Occurrence of hepatocellular carcinoma (HCC)
New HCC detected by imaging or pathology
24 months of follow up
Relative True Positive Rate of Surveillance Modalities
24 months
Relative False Positive Rate of Surveillance Modalities
24 months
Study Arms (1)
Addition of PIVKA-II and GAAD score to all participants
EXPERIMENTALAddition of PIVKA-II and GAAD score will probably detect more HCC and compare with ultrasound alone or ultrasound plus AFP
Interventions
Measurement of PIVKA-II to routine ultrasound and AFP and calculation of GAAD score
Eligibility Criteria
You may qualify if:
- Signed informed consent form (ICF).
- Age above 18 years.
- Patients with chronic liver disease who have an indication for HCC surveillance, including:
- Liver cirrhosis of any etiology (e.g., chronic HBV, HCV, NASH, alcohol).
- Non-cirrhotic chronic liver disease (HCV, MASH, ALD) with evidence of F3 stage fibrosis.
- Chronic HBV infection with a clinical diagnosis of non-cirrhosis
You may not qualify if:
- Diagnosis with any cancer other than non-melanoma skin cancer.
- Pre-existing diagnosed malignancies, including previous HCC.
- Life expectancy of less than 2 years.
- Use of Vitamin K antagonists within one week before enrolment.
- Women who are pregnant or lactating.
- Glomerular filtration rate (GFR) \< 60 mL/min/1.73 m².
- Significant hepatic decompensation or a Child-Pugh score of C.
- Unwillingness or inability to undergo CT and MRI imaging.
- Unwillingness to participate in the study.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Siriraj Hospitallead
- Roche Global Developmentcollaborator
Study Sites (1)
Faculty of Medicine Siriraj Hospital
Bangkok Noi, Bangkok, 10700, Thailand
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NA
- Masking
- NONE
- Purpose
- SCREENING
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
December 6, 2025
First Posted
December 23, 2025
Study Start
February 2, 2026
Primary Completion (Estimated)
February 2, 2029
Study Completion (Estimated)
July 31, 2030
Last Updated
April 24, 2026
Record last verified: 2026-04
Data Sharing
- IPD Sharing
- Will not share