A Study to Evaluate Tobevibart+Elebsiran versus Bulevirtide in Chronic HDV Infection
Who can participate
Age range
18 Years – 70 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. Male or female ages 18 to 70 years at screening
. Positive HDV antibody or positive HDV RNA PCR result for at least 6 months prior to screening and HDV RNA ≥ 500 IU/mL at screening
. Noncirrhotic or compensated cirrhotic liver disease at screening
. On NRTI therapy against HBV for at least 12 weeks prior to day 1 or have HBV DNA \< 10 IU/ml at screening, currently on locally approved NRTI therapy
Exclusion criteria
. Serum ALT ≥ 5 × ULN
. Any clinically significant chronic or acute medical or psychiatric condition that makes the participant unsuitable for participation.
. History of significant liver disease from non-HBV or non-HDV etiology
. History of allergic reactions, hypersensitivity, or intolerance to study drug, its metabolites, or excipients.
. History of anaphylaxis
. History of immune complex disease
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
HDV RNA < Lower Limit of Quantification (LLOQ), Target not detected (TND) at Week 48
Timeframe: Week 48
2
HDV RNA < Lower Limit of Quantification (LLOQ), Target not detected (TND) 24 weeks after end of treatment
Timeframe: 24 Weeks after End of Treatment
3
Incidence of treatment-emergent adverse events (TEAEs) and serious adverse events (SAEs) through Week 48
. Current therapy or therapy within 24 weeks of screening with an immunomodulatory agent, immune checkpoint inhibitors, immunosuppressants, cytotoxic or chemotherapeutic agent, or chronic systemic corticosteroids.