Hydronidone shows promise in liver fibrosis Phase 3 trial

Published 22/05/2025, 21:10
Hydronidone shows promise in liver fibrosis Phase 3 trial

SAN DIEGO - Gyre Therapeutics (NASDAQ: GYRE), currently valued at approximately $988 million, announced that its leading drug candidate, Hydronidone, has achieved its primary endpoint in a pivotal Phase 3 trial for the treatment of liver fibrosis in patients with chronic hepatitis B (CHB) in China. The trial’s results showed a significant regression in liver fibrosis among patients treated with Hydronidone compared to those receiving a placebo. According to InvestingPro data, the company maintains strong liquidity with a current ratio of 3.6, suggesting robust financial flexibility to support its drug development programs.

The double-blind study, conducted over 52 weeks across 39 hospitals in China, enrolled 248 patients with CHB fibrosis. Participants were given Hydronidone (270 mg/day) or a placebo in addition to standard antiviral therapy. The primary endpoint was met, with 52.85% of patients in the Hydronidone group experiencing a ≥1-stage fibrosis regression, significantly higher than the 29.84% observed in the placebo group (P=0.0002). With an impressive gross profit margin of 96.2% in the last twelve months, InvestingPro analysis reveals the company’s efficient operational structure. Subscribers can access 8 additional ProTips and comprehensive financial metrics to better evaluate GYRE’s investment potential.

Hydronidone also demonstrated a favorable safety profile, with serious adverse events reported in 4.88% of patients, compared to 6.45% in the placebo group. There were no discontinuations due to adverse events.

Based on these findings, Gyre plans to submit a New Drug Application (NDA) to China’s National Medical Products Administration (NMPA) in Q3 2025, seeking accelerated approval for Hydronidone in CHB-associated liver fibrosis. The company also intends to initiate a U.S. Phase 2 trial for Hydronidone in MASH-associated liver fibrosis in the second half of 2025.

Hydronidone, a structural analogue of Pirfenidone, is designed to inhibit key drivers of liver fibrosis and has shown efficacy in multiple preclinical models. The drug’s development has been supported by a Breakthrough Therapy Designation granted by the NMPA in 2021.

Approximately 75 million people in China are chronically infected with hepatitis B virus, with a significant subset developing CHB with progressive fibrosis. Gyre estimates that around 2.6 million patients in China have compensated F2-F4 CHB fibrosis, highlighting the potential market for Hydronidone. The company reported revenue of $100.6 million in the last twelve months, with InvestingPro data showing an overall Financial Health score of "FAIR," suggesting stable positioning for market expansion. Analysts maintain a strong buy consensus with a significant upside potential from current trading levels.

The company plans to publish the primary results in a peer-reviewed journal and present the full trial data at a future medical congress. This press release statement serves as the basis for the information provided in this article.

In other recent news, Gyre Therapeutics reported fourth-quarter revenue of $27.87 million and provided a 2025 revenue guidance that did not meet analyst expectations. The company anticipates 2025 revenue between $118 million and $128 million, which, although representing growth over 2024, falls short of the $135.7 million analysts projected. Gyre’s guidance factors in the launch of new products, nintedanib and avatrombopag, in China this year. Additionally, the company has initiated a public offering of its common stock, with plans to use the proceeds for its Phase 2 clinical trial of F351 for liver fibrosis and other corporate purposes.

Gyre Therapeutics is also advancing its clinical trials, having recently published the protocol for its Phase 3 trial on hydronidone for liver fibrosis, with patient enrollment completed in October 2024. Meanwhile, the company has received approval from China’s National Medical Products Administration to begin a clinical trial for pirfenidone, targeting radiation-induced lung injury and checkpoint inhibitor pneumonitis. This trial aims to explore the drug’s potential in treating lung injuries in cancer patients.

Analysts from Jefferies LLC and H.C. Wainwright & Co. are involved in Gyre’s public stock offering, with Jefferies leading as the book-running manager. The company ended 2024 with $51.2 million in cash and investments, highlighting its financial position as it moves forward with both commercial and clinical endeavors.

This article was generated with the support of AI and reviewed by an editor. For more information see our T&C.

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