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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT06277037
Registration number
NCT06277037
Ethics application status
Date submitted
14/02/2024
Date registered
26/02/2024
Titles & IDs
Public title
Long-Term Follow-up Study for Subjects With CHB Previously Treated With Imdusiran (AB729)
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Scientific title
A Long-Term Follow-up Study for Subjects With Chronic Hepatitis B Previously Treated With Imdusiran (AB-729)
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Secondary ID [1]
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AB-729-204
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Long Term Follow-up
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Condition category
Condition code
Intervention/exposure
Study type
Observational
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Patient registry
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Target follow-up duration
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Target follow-up type
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Description of intervention(s) / exposure
Other interventions - Non-interventional
Other interventions: Non-interventional
This is a rollover study
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Intervention code [1]
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Other interventions
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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To evaluate the durability of effect of imdusiran on HBV parameters
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Assessment method [1]
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Change from pre-"parent" study baseline and over time in HBsAg, HBV DNA, and hepatitis B surface antibody (HBsAb) at each timepoint.
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Timepoint [1]
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Up to 96 weeks
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Primary outcome [2]
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To evaluate the durability of effect of imdusiran on HBV parameters
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Assessment method [2]
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Proportion of subjects who remain off NA therapy and duration off NA therapy, if applicable
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Timepoint [2]
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Up to 96 weeks
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Primary outcome [3]
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To evaluate the durability of effect of imdusiran on HBV parameters
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Assessment method [3]
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Proportion of subjects who restart NA therapy, if applicable
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Timepoint [3]
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Up to 96 weeks
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Eligibility
Key inclusion criteria
Key
* Have participated in a prior imdusiran clinical trial,
* Have discontinued NA therapy in that trial and remain off NA therapy,
* Have completed less than 3 years of follow-up visits after NA discontinuation in the parent study.
* Have the ability to review and provide signed informed consent which includes compliance with all protocol-specified visit schedules and requirements.
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Minimum age
20
Years
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Maximum age
70
Years
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
* Not applicable
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Study design
Purpose
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Duration
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Selection
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Timing
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Statistical methods / analysis
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Recruitment
Recruitment status
Not yet recruiting
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
15/07/2024
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Actual
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
30/10/2029
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Actual
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Sample size
Target
35
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Accrual to date
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Final
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Recruitment in Australia
Recruitment state(s)
VIC
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Recruitment hospital [1]
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The Alfred Hospital - Melbourne
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Recruitment hospital [2]
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Fiona Stanley Hospital - Murdoch
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Recruitment postcode(s) [1]
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3004 - Melbourne
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Recruitment postcode(s) [2]
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6150 - Murdoch
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Recruitment outside Australia
Country [1]
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United States of America
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State/province [1]
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California
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Country [2]
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United States of America
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State/province [2]
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Florida
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Country [3]
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United States of America
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State/province [3]
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New Jersey
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Country [4]
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Hong Kong
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State/province [4]
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New Territories
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Country [5]
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Hong Kong
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State/province [5]
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Hong Kong
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Country [6]
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Korea, Republic of
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State/province [6]
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Seoul
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Country [7]
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Moldova, Republic of
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State/province [7]
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Chisinau
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Country [8]
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Taiwan
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State/province [8]
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Changhua city
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Country [9]
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Taiwan
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State/province [9]
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Chiayi City
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Country [10]
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Taiwan
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State/province [10]
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Kaohsiung
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Country [11]
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Taiwan
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State/province [11]
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Taichung
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Country [12]
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Taiwan
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State/province [12]
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Taoyuan
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Country [13]
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United Kingdom
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State/province [13]
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Cardiff
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Country [14]
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United Kingdom
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State/province [14]
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London
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Funding & Sponsors
Primary sponsor type
Commercial sector/industry
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Name
Arbutus Biopharma Corporation
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Address
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Country
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Ethics approval
Ethics application status
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Summary
Brief summary
This is a long term follow-up study for chronic hepatitis B (CHB) subjects who have received imdusiran treatment in a prior clinical trial, stopped NA therapy during that trial, and remain off therapy. Subjects may enroll after completing the end of study visit (baseline visit within 12 weeks ± 1 week from the end of study \[EOS\] visit) from their imdusiran clinical trial (the "parent study"). No interventions will be performed in this study other than blood sample collections, review of current medications, and reporting of any adverse events related to study procedures or NA therapy if restarted. Study participation will be for approximately 2 years (to complete a total of at least 3 years of follow-up while off NA therapy, inclusive of parent study participation).
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Trial website
https://clinicaltrials.gov/study/NCT06277037
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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Address
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Michael Child
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Address
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Country
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Phone
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267-332-6213
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Fax
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Email
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[email protected]
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Contact person for scientific queries
Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results not provided in
https://clinicaltrials.gov/study/NCT06277037