Monthly long-acting treatment for hepatitis B

Long-acting Antiviral Treatment for HBV

NIH-funded research University of Washington · NIH-11135319

Turning daily hepatitis B pills into a monthly injectable to help people with HBV, including those also living with HIV, keep the virus under control.

Quick facts

Grant typeR01 grant
Study typeNIH-funded research
Funding institutionUniversity of Washington NIH-funded
Lab location1 site (Seattle, United States)
Project IDNIH-11135319 on NIH RePORTER

What this research studies

You would be helped if scientists can reformulate current hepatitis B antivirals into long-acting injectable medicines that stay in the body for weeks. The team will use drug formulation work, lab and preclinical testing, and translational studies to identify a lead and backup product suitable for monthly self-injection. After selecting candidates, the program will move toward safety testing and early human studies to ensure steady antiviral levels and prevent viral rebound. The research pays special attention to people with both HBV and HIV who need consistent antiviral coverage.

Who could benefit from this research

Good fit: Ideal candidates are people living with chronic hepatitis B, including those co-infected with HIV who require continuous HBV suppression.

Not a fit: People without chronic hepatitis B, or those whose HBV has already been cured, would not directly benefit from this therapy.

Why it matters

Potential benefit: If successful, this could replace daily pills with a monthly shot, reducing missed doses and lowering the risk of viral rebound and liver damage.

How similar studies have performed: Long-acting injectable antivirals have worked well for HIV (for example, Cabenuva), but applying similar long-acting formulations to hepatitis B is relatively new and early-stage.

Where this research is happening

Seattle, United States

Researchers

About this research

  1. This is an active NIH-funded research project — typically early-stage science, not a clinical trial accepting patient enrollment.
  2. Some NIH-funded labs run parallel clinical studies or seek volunteers for related work. To check, contact the principal investigator or institution listed above.
  3. For full project details, budget, and progress reports, visit the official NIH RePORTER page below.
Conditions Acquired Immune Deficiency SyndromeAcquired Immune Deficiency Syndrome VirusAcquired Immunodeficiency SyndromeAcquired Immunodeficiency Syndrome Virus
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.