siRNA plus nanovaccine achieves stable functional cure for chronic hepatitis B
Peer-Reviewed Publication
Updates every hour. Last Updated: 1-May-2025 05:08 ET (1-May-2025 09:08 GMT/UTC)
Functional cure of chronic hepatitis B (CHB) remains a major clinical challenge. Current therapies—including nucleos(t)ide analogs, interferon, siRNA, and therapeutic vaccines—often fail to sustain HBsAg clearance or induce durable seroconversion after treatment cessation. However, a breakthrough study led by Professor Zhu’s team at the Institute of Microbiology, Chinese Academy of Sciences demonstrates a promising combinatorial strategy. By pairing an HBV-specific siRNA with their proprietary therapeutic vaccine, the researchers achieved striking long-term efficacy in a CHB mouse model. The combined regimen induced 100% sustained HBsAg loss (lasting ~11 months) and an 80% HBs seroconversion rate, with anti-HBs antibodies persisting stably for the same duration. These findings highlight a potent new approach for CHB functional cure, meriting further clinical evaluation.
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