New antibody shows promise against rare liver infection

NCT ID NCT05861674

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested an experimental drug called HH-003 in 101 adults with chronic hepatitis delta, a serious liver disease. HH-003 is an antibody that targets hepatitis B virus, which is needed for hepatitis delta to survive. Participants received either a low or high dose of HH-003 plus standard care, or standard care alone, for 48 weeks. The goal was to see if the drug could lower virus levels and improve liver health.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

HH-003 (a monoclonal antibody targeting hepatitis B virus)

What this could lead to

If successful, this could point toward a new treatment option for chronic hepatitis delta, a serious liver disease with few approved therapies.

What could go wrong

This is a mid-stage trial with only 101 participants, so results may not confirm effectiveness or safety. The treatment targets hepatitis B, but the disease is caused by hepatitis delta, so it may not work as hoped.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

hepatitis D virus infection

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • Beijing Ditan Hospital Captial Medical University

    Beijing, Beijing Municipality, 100015, China