Tag: Gyre Therapeutics

Research News and Market Data on GYRE

March 17, 2026

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SAN DIEGO, March 17, 2026 (GLOBE NEWSWIRE) — Gyre Therapeutics, Inc. (Gyre or Gyre Therapeutics) (Nasdaq: GYRE), a San Diego-based innovative commercial stage biopharmaceutical company with operations in the United States and China, today announced that the Center for Drug Evaluation (CDE) of China’s National Medical Products Administration (NMPA) has granted priority review status to the New Drug Application (NDA) for Hydronidone (F351) as a treatment for chronic hepatitis B (CHB)-induced liver fibrosis, which is liver damage resulting from the infection of the hepatitis B virus (HBV). This decision by CDE was made following the pre-NDA communication meeting previously announced on January 5, 2026 and is a major milestone in the NDA process. Gyre, through its majority-owned subsidiary, Gyre Pharmaceuticals Co., Ltd. (Gyre Pharmaceuticals), plans to submit a formal NDA in the near future.

Mr. Ping Zhang, Executive Chairman of Gyre, stated, “I am very pleased to see the decision by the Chinese CDE to grant priority review to our NDA for F351. It underscores both the urgency of the medical need to treat liver fibrosis and the potential of F351 as an innovative therapeutic option. HBV infection affects tens of millions of patients in China and a significant number of them will develop liver fibrosis and eventually cirrhosis. If approved, F351 could address the need for these patients. We thank the agency for their continued support to advance therapies for liver fibrosis patients in need of treatment and look forward to working closely with CDE to move F351 toward approval.”

About Priority Review Designation by the NMPA in China

Priority review was established in China in 2017 to facilitate drug registration and accelerate the development of new drugs with clinical value under the guidance of Opinions on Encouraging Pharmaceutical Innovation via Priority Review & Approval. According to these guidelines, the NMPA will prioritize the review of these applications and allocate additional evaluation resources, which is expected to accelerate the review process.

About Hydronidone (F351)

Hydronidone, also known as F351, is a novel, orally administered anti-fibrotic agent designed to target key liver fibrosis pathways. It attenuates hepatic stellate cell activation and fibrogenesis, at least in part, by suppressing TGF-β1-induced signal transduction, including reduced p38γ phosphorylation and upregulated Smad7 expression. This upregulation of Smad7 subsequently leads to downregulation of TGF-βRI and inhibition of Smad2/3 activation, thereby disrupting canonical TGF-β/Smad signaling and reducing fibrotic gene expression in HSCs.

The drug has completed Phase 3 clinical evaluation in China for CHB-associated liver fibrosis, including early (compensated) cirrhosis, and is being evaluated for its potential applicability across additional fibrotic diseases in region-specific development programs.

About CHB-Induced Liver Fibrosis

CHB-induced liver fibrosis is the accumulation of scar tissue (collagen) in the liver caused by persistent inflammation from hepatitis B virus. According to the World Health Organization, approximately 254 million people worldwide were living with CHB infection in 2022, with 1.2 million new infections each year, and 1.3 million deaths globally. CHB is the leading aetiology of liver fibrosis and liver cancer globally, with up to 36% of all CHB patients globally developing cirrhosis. CHB prevalence varies across geographies with China and the United States estimated to have among the highest number of CHB cases.

About Gyre Pharmaceuticals

Gyre Pharmaceuticals is a commercial-stage biopharmaceutical company committed to the research, development, manufacturing and commercialization of innovative drugs for organ fibrosis. Its flagship product, ETUARY^® (pirfenidone capsule), was the first approved treatment for IPF in the PRC in 2011 and has maintained a prominent market share (2024 net sales of $105.8 million). In addition, Gyre Pharmaceuticals’ pipeline includes Hydronidone, a structural analogue of pirfenidone, which demonstrated statistically significant fibrosis regression after 52 weeks of treatment in a pivotal Phase 3 clinical trial in CHB-associated liver fibrosis in the PRC. Hydronidone received Breakthrough Therapy designation by the NMPA Center for Drug Evaluation in March 2021. Gyre Pharmaceuticals is also developing treatments for PD, RILI with or without immune-related pneumonitis, COPD, PAH and ALF/ACLF. As of the third quarter of 2025, Gyre Therapeutics owns a 69.7% equity interest in Gyre Pharmaceuticals.

About Gyre Therapeutics

Gyre Therapeutics is a biopharmaceutical company headquartered in San Diego, CA, primarily focused on the development and commercialization of Hydronidone for liver fibrosis including MASH in the U.S. Gyre’s strategy builds on its experience in mechanistic studies using MASH rodent models and clinical studies in CHB-induced liver fibrosis. In the PRC, Gyre is advancing a broad pipeline through its indirect controlling interest in Gyre Pharmaceuticals, including therapeutic expansions of ETUARY, and development programs for F573, F528, and F230. On March 2, 2026 Gyre announced its agreement to acquire Cullgen Inc., a privately-held, clinical-stage biopharmaceutical company focused on the discovery and development of targeted protein degraders and degrader antibody conjugate therapies.

Forward-Looking Statements

This press release contains “forward-looking statements” within the meaning of the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995, which statements are subject to substantial risks and uncertainties and are based on estimates and assumptions. All statements, other than statements of historical facts included in this press release, are forward-looking statements, including statements concerning: the expectations regarding Gyre’s research and development efforts and the timing of expected clinical readouts and regulatory filings, including the anticipated timing of the filing of Gyre’s NDA with the NMPA for the conditional approval of Hydronidone for the treatment of CHB-associated liver fibrosis and early cirrhosis and the initiation of the confirmatory Phase 3c clinical trial of Hydronidone to support full approval in China. In some cases, you can identify forward-looking statements by terms such as “may,” “might,” “will,” “objective,” “intend,” “should,” “could,” “can,” “would,” “expect,” “believe,” “design,” “estimate,” “predict,” “potential,” “plan” or the negative of these terms, and similar expressions intended to identify forward-looking statements. These statements reflect our plans, estimates, and expectations, as of the date of this press release. These statements involve known and unknown risks, uncertainties and other factors that could cause our actual results to differ materially from the forward-looking statements expressed or implied in this press release. Actual results and the timing of events could differ materially from those anticipated in such forward-looking statements as a result of these risks and uncertainties, which include, without limitation: Gyre’s ability to execute on its clinical development strategies; positive results from a clinical trial may not necessarily be predictive of the results of future or ongoing clinical trials; the timing or likelihood of regulatory filings and approvals; competition from competing products; the impact of general economic, health, industrial or political conditions in the United States or internationally; the sufficiency of Gyre’s capital resources and its ability to raise additional capital; supply chain and distribution delays and challenges. Additional risks and factors are identified under “Risk Factors” in Gyre’s Annual Report on Form 10-K for the year ended December 31, 2025 filed on March 13, 2026 and in other filings with the Securities and Exchange Commission.

Gyre expressly disclaims any obligation to update any forward-looking statements whether as a result of new information, future events or otherwise, except as required by law.

Contact:

Ping Zhang, interim CEO and Executive Chairman

ping.zhang@gyretx.com

Research News and Market Data on GYRE

March 12, 2026

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Full-year 2025 revenue increased 10% year-over-year to $116.6 million, within revised guidance range

Full year 2026 revenue guidance of $100.5 to $111.0 million

Entered into agreement to acquire Cullgen to gain targeted protein degradation platform and pipeline; transaction anticipated to close in the second quarter of 2026

Alignment with China’s Center for Drug Evaluation (CDE) on conditional approval filing and priority review eligibility for Hydronidone, subject to formal approval; New Drug Application (NDA) submission for conditional approval expected in the first half of 2026

Completed patient enrollment in the 52-week Phase 3 pirfenidone pneumoconiosis (PD) trial
(272 patients across 18 sites)

Hydronidone U.S. Investigational New Drug (IND) application for MASH-associated liver fibrosis anticipated in 2026

SAN DIEGO, March 12, 2026 (GLOBE NEWSWIRE) — Gyre Therapeutics (Gyre or the Company) (Nasdaq: GYRE), an innovative, commercial-stage biopharmaceutical company dedicated to advancing fibrosis-first therapies across organ systems affected by chronic disease, today announced financial results for the fourth quarter and full year ended December 31, 2025 and provided a business update.

“2026 is expected to be a pivotal regulatory year for Gyre as we advance Hydronidone toward conditional approval in China following our alignment with China’s CDE,” said Ping Zhang, Executive Chairman and Interim Chief Executive Officer of Gyre Therapeutics. “Our planned NDA submission in the first half of 2026 underscores the strength of our Phase 3 data and the constructive progress achieved through regulatory engagement. In addition, we have completed enrollment in our 52-week Phase 3 pirfenidone trial in pneumoconiosis, further strengthening our late-stage respiratory portfolio. We have also incorporated the complete Phase 2 and Phase 3 clinical data from our CHB-associated liver fibrosis program into our U.S. development strategy and expect to submit an IND application in 2026 for MASH-associated liver fibrosis. Finally, we recently announced an agreement to acquire Cullgen, a company with a robust pipeline of degraders, targeting inflammatory diseases and cancers, as well as U.S.-based drug discovery and development capabilities. Collectively, these achievements support the continued advancement of our differentiated pipeline across both China and the United States.”

Fourth Quarter 2025 Business Highlights and Upcoming Milestones

Commercial Portfolio

• ETUARY^® (pirfenidone): Generated $106.1 million in sales of ETUARY^® for the full year ended December 31, 2025, compared to $105.0 million for the same period in 2024.
• Etorel^® (nintedanib ethanesulfonate soft capsules): Launched in June 2025 and generated $4.6 million in sales for the full year ended December 31, 2025.
• Contiva^® (avatrombopag maleate tablets): Launched in March 2025 and generated $5.5 million in sales for the full year ended December 31, 2025.

Pipeline Development Updates

Hydronidone:

• In November 2025, Gyre Pharmaceuticals Co., Ltd. (Gyre Pharmaceuticals) presented positive Phase 3 trial results evaluating Hydronidone for the treatment of liver fibrosis in chronic hepatitis B (CHB)-associated liver fibrosis at The Liver Meeting^® 2025, the annual meeting of the American Association of the Study of Liver Diseases. The abstract was selected as a Poster of Distinction.
• Following the Phase 3 trial results, Gyre Pharmaceuticals completed a Pre-NDA meeting with China’s CDE. Based on the discussions, the CDE indicated that the existing Phase 3 clinical data support a conditional approval filing and potential priority review eligibility, subject to formal acceptance and approval. The Company plans to submit an NDA for conditional approval in the first half of 2026.
• In the United States, Gyre Therapeutics plans to conduct a hepatic impairment study under its active U.S. IND application to inform dose selection and enrollment criteria in patients with reduced hepatic function, supporting the Company’s broader U.S. development strategy.
• Gyre Therapeutics remains on track to submit an IND application in 2026 with the U.S. Food & Drug Administration for Hydronidone in MASH-associated liver fibrosis, and, subject to IND clearance, initiate a Phase 2 clinical trial.

Pirfenidone:

• In the third quarter of 2025, Gyre Pharmaceuticals completed patient enrollment in its 52-week Phase 3 clinical trial evaluating pirfenidone for the treatment of PD. The multicenter, randomized, double-blind, placebo-controlled trial enrolled 272 patients across 18 clinical research centers in China and is designed to assess the efficacy and safety of 52 weeks of pirfenidone treatment in patients with this chronic occupational lung disease characterized by progressive pulmonary fibrosis. The final patient is expected to complete the trial in the third quarter of 2026.
• Following approval in March 2025 from China’s National Medical Products Association’s (NMPA) for a clinical trial evaluating pirfenidone in oncology-related pulmonary complications, Gyre Pharmaceuticals plans to initiate an adaptive Phase 2/3 trial in the first half of 2026 in China. This trial will evaluate pirfenidone for radiation-induced lung injury (RILI), including cases complicated by immune-related pneumonitis, at leading oncology centers.

Corporate Updates:

• In March 2026, Gyre announced an agreement to acquire Cullgen Inc. (Cullgen), a privately-held, clinical-stage biopharmaceutical company focused on the discovery and development of targeted protein degrader and degrader antibody conjugate therapies, in an all-stock transaction valued at approximately $300 million. Following the closing of the acquisition, expected in the second quarter of 2026, the new combined entity is expected to be a fully integrated biopharmaceutical company with U.S.- and China-based capabilities spanning from discovery to manufacturing and commercialization and covering multiple therapeutic areas, including inflammatory diseases, cancers, and pain.

Financial Results

Cash Position

As of December 31, 2025, Gyre had cash, cash equivalents, short-term and long-term bank deposits of $75.9 million.

Financial Results for the Three Months Ended December 31, 2025

• Revenues: Revenues for the three months ended December 31, 2025 were $37.2 million, compared to $27.9 million for the same period in 2024, representing an increase of $9.3 million, or 33.3% year-over-year. The growth was driven by $1.5 million in Etorel^® sales and $2.5 million in Contiva^® sales, as well as a $5.5 million increase in ETUARY^® sales, partially offset by a $0.2 million decrease in generic drug revenue. The increase in ETUARY^® sales reflects strengthened commercial execution and the reallocation of marketing resources during the second half of 2025.
• Cost of Revenues: For the three months ended December 31, 2025, cost of revenues was $1.7 million, compared to $1.2 million for the same period in 2024. The $0.5 million increase was primarily driven by a $0.4 million increase in stock-based compensation expense, and a $0.1 million increase in cost of sales of Etorel^® and Contiva^®.
• Selling and Marketing Expense: Selling and marketing expense for the three months ended December 31, 2025 was $23.8 million, compared to $16.9 million for the same period in 2024, representing an increase of $6.9 million, or 40.8% year-over-year. The increase was primarily attributable to expanded commercial activities, including a $2.9 million increase in personnel costs driven by higher sales headcount and commissions, a $2.2 million increase in stock-based compensation expense, a $1.7 million increase in conference and promotional activities, and a $0.1 million increase in travel and other expenses.
• Research and Development Expense: For the three months ended December 31, 2025, research and development expense was $4.8 million, compared to $3.7 million for the same period in 2024. The $1.1 million increase was primarily driven by a $0.6 million increase in facilities, depreciation and other expenses, attributable mainly to professional and consulting fees incurred in connection with research and development operations, a $0.3 million increase in pre-clinical research costs, a $0.2 million increase in clinical trial costs and a $0.3 million increase in staff costs which included $0.2 million in stock-based compensation expenses, partially offset by a $0.3 million decrease in materials and utilities expenses.
• General and Administrative Expense: For the three months ended December 31, 2025, general and administrative expense was $6.7 million, compared to $5.5 million for the same period in 2024. The $1.2 million increase was primarily driven by a $1.2 million increase in stock-based compensation expense and a $0.8 million increase in functional and administrative department’s personnel expense, partially offset by a $0.6 million decrease in professional service expense, a $0.1 million decrease in depreciation and amortization expense and a $0.1 million decrease in miscellaneous expense.
• Income from Operations: For the three months ended December 31, 2025, income from operations was $0.1 million, compared to $0.7 million income from operations for the same period in 2024. The $0.6 million decrease in income from operations was driven primarily by a $9.9 million increase in total operating expenses, partially offset by a $9.3 million increase in revenue.
• Net (Loss) Income: For the three months ended December 31, 2025, net loss was $1.4 million, compared to $0.6 million net income for the same period in 2024. The $2.0 million decrease was driven primarily by an increase in income tax expense of $1.1 million, an increase in operating expenses of $9.9 million and a decrease in other income of $0.3 million, partially offset by an increase in revenue of $9.3 million.
• Non-GAAP Adjusted Net Income: For the three months ended December 31, 2025, non-GAAP adjusted net income was $4.3 million, compared to $1.1 million for the same period in 2024. The $3.2 million increase was primarily driven by an increase in revenue of $9.3 million partially offset by the increase in operating expenses of $5.8 million and an decrease in other income of $0.3 million.

Financial Results for the Full Year Ended December 31, 2025

• Revenues: Revenues for the full year ended December 31, 2025 were $116.6 million, compared to $105.8 million for the same period in 2024, representing an increase of $10.8 million, or 10.2% year-over-year. The growth was driven by $5.5 million in Contiva^® sales and $4.6 million in Etorel^® sales, along with a $1.1 million increase in ETUARY^® sales, partially offset by a $0.4 million decline in generic drug revenue.
  
  Sales of Contiva^® and Etorel^®, which commenced commercialization in March 2025 and June 2025, respectively, were primarily driven by the targeted allocation of commercial and marketing resources to support their respective launches during the first half of 2025. The increase in ETUARY^® sales reflects a strategic realignment of marketing efforts in the third quarter of 2025 to optimize product mix and address evolving market dynamics.

• Cost of Revenues: For the full year ended December 31, 2025, cost of revenues was $5.4 million, compared to $3.9 million for the same period in 2024. The $1.5 million increase was primarily driven by a $0.8 million increase in ETUARY^®‘s cost, due to higher plant, property and equipment depreciation from a plant renovation completed in the second half of 2024, a $0.6 million increase in the cost of Contiva^® and Etorel^®, in line with the corresponding increase in their sales, and a $0.5 million increase in stock-based compensation expense. These factors were partially offset by a $0.4 million decrease in costs related to generic drugs due to the decrease in sales.
• Selling and Marketing Expense: For the full year ended December 31, 2025, selling and marketing expense was $65.2 million, compared to $57.5 million for the same period in 2024. This $7.7 million increase was primarily driven by a $2.5 million increase in conference expenses and promotional expenses, attributable to the launch of additional promotional campaigns in the current year—particularly for the Company’s new products, a $2.6 million increase in staff costs, which was driven by expanded headcount and higher sales commissions, consistent with the corresponding growth in revenue, a $2.3 million increase in stock-based compensation expense and a $0.3 million increase in traveling and other expense.
• Research and Development Expense: For the full year ended December 31, 2025, research and development expense was $13.7 million, compared to $12.0 million for the same period in 2024. The $1.7 million increase was attributable to a $1.0 million increase in clinical trial costs, primarily as a result of data analysis costs for Hydronidone, PD and RILI, a $0.4 million increase in staff costs, which included $0.2 million in stock-based compensation expense, a $0.5 million increase in facilities, depreciation and other expenses, attributable mainly to professional and consulting fees incurred in connection with research and development operations, and a $0.4 million increase in pre-clinical research expenses. These expense increases were partially offset by a $0.6 million decrease in materials and utilities expenses.
• General and Administrative Expense: For the full year ended December 31, 2025, general and administrative expense was $20.8 million, compared to $16.1 million for the same period in 2024. This $4.7 million increase was primarily driven by a $3.3 million increase in stock-based compensation expense, a $1.3 million increase in functional and administrative department’s personnel expense, and a $0.9 million increase in miscellaneous expense. These cost increases were partially offset by a $0.8 million decrease in professional service expenses.
• Income from Operations: For the full year ended December 31, 2025, income from operations was $11.5 million, compared to $16.2 million in income for the same period in 2024. The $4.7 million decrease in income from operations was driven primarily by a $15.5 million increase in total operating expenses, partially offset by a $10.8 million increase in revenue.
• Net Income: For the full year ended December 31, 2025, net income was $9.9 million, compared to $17.9 million net income for the same period in 2024. This $8.0 million decrease was driven primarily by the increase in operating expenses of $15.5 million and decrease in change in fair value of warrant liability of $4.5 million, partially offset by an increase in revenue of $10.8 million, an increase in other income of $0.4 million, and a decrease in income tax expense of $0.8 million.
• Non-GAAP Adjusted Net Income: For the full year ended December 31, 2025, non-GAAP adjusted net income was $18.9 million, compared to $16.9 million for the same period in 2024. The increase was primarily driven by an increase in revenue of $10.8 million and an increase in other income of $0.4 million partially offset by an increase in operating expenses of $9.2 million.

Full Year 2026 Financial Guidance

For the full year 2026, the Company expects to generate revenues of $100.5 million to $111.0 million, representing a decline of approximately 13.8% to 4.8% compared to 2025.

The Company anticipates that 2026 will be a transition period, during which it plans to prioritize regulatory activities, including preparation for the planned NDA submission of Hydronidone.

In addition, given uncertainties associated with the National Centralized Drug Procurement program and evolving market dynamics, the Company expects to moderate promotional activities for Contiva^® and Etorel^®.

Please note the following regarding the total revenue guidance:

• Guidance assumes a constant foreign currency exchange rate.
• Guidance assumes no significant economic disruption or downturn.

Use of Non-GAAP Financial Measures by Gyre Therapeutics, Inc.

Gyre reports financial results in accordance with accounting principles generally accepted in the United States (“GAAP”). This release presents the financial measure “adjusted net income,” which is not calculated in accordance with GAAP. The most directly comparable GAAP measure for this non-GAAP financial measure is “net income.” Adjusted net income presents Gyre’s results of operations after excluding gain from change in fair value of warrants, stock-based compensation, and provision for income taxes. This is meant to supplement, and not substitute, Gyre’s financial information presented in accordance with GAAP. Adjusted net income as defined by Gyre may not be comparable to similar non-GAAP measures presented by other companies. Management believes that presenting adjusted net income provides investors with additional useful information in evaluating Gyre’s performance and valuation. See the reconciliation of adjusted net income to net income in the section titled “Reconciliation of GAAP to Non-GAAP Financial Measures” below.

About Hydronidone

Hydronidone is a novel, orally administered anti-fibrotic agent designed to target key liver fibrosis pathways. It attenuates hepatic stellate cell activation and fibrogenesis, at least in part, by suppressing Tumor Growth Transforming (TGF)-β1-induced signal transduction, including reduced p38γ phosphorylation and upregulated Smad7 expression. This upregulation of Smad7 subsequently leads to downregulation of TGF-βRI and inhibition of Smad2/3 activation, thereby disrupting canonical TGF-β/Smad signaling and reducing fibrotic gene expression in hepatic stellate cells.

The drug has completed Phase 3 clinical evaluation in China for chronic hepatitis B (CHB)-associated liver fibrosis, including early (compensated) cirrhosis, and is being evaluated for its potential applicability across additional fibrotic diseases in region-specific development programs.

About Gyre Pharmaceuticals

Gyre Pharmaceuticals is a commercial-stage biopharmaceutical company committed to the research, development, manufacturing and commercialization of innovative drugs for organ fibrosis. Its flagship product, ETUARY^® (pirfenidone capsule), was the first approved treatment for IPF in China in 2011 and has maintained a prominent market share (2024 net sales of $105.8 million). In addition, Gyre Pharmaceuticals’ pipeline includes Hydronidone, a structural analogue of pirfenidone, which demonstrated statistically significant fibrosis regression after 52 weeks of treatment in a pivotal Phase 3 clinical trial in CHB-associated liver fibrosis in China. Hydronidone received Breakthrough Therapy designation by the NMPA CDE in March 2021. Gyre Pharmaceuticals is also developing treatments for PD, RILI with or without immune-related pneumonitis, chronic obstructive pulmonary disease (COPD), pulmonary arterial hypertension (PAH) and acute/acute-on-chronic liver failure (ALF/ACLF). As of December 31, 2025, Gyre Therapeutics owns a 69.7% equity interest in Gyre Pharmaceuticals.

About Gyre Therapeutics

Gyre Therapeutics is a biopharmaceutical company headquartered in San Diego, CA, primarily focused on the development and commercialization of Hydronidone for liver fibrosis, including MASH, in the United States Gyre’s strategy builds on its experience in mechanistic studies using MASH rodent models and clinical studies in CHB-induced liver fibrosis. In the People’s Republic of China, Gyre is advancing a broad pipeline through its indirect controlling interest in Gyre Pharmaceuticals, including therapeutic expansions of ETUARY^®, and development programs for F573, F528, and F230.

Forward-Looking Statements

This press release contains “forward-looking statements” within the meaning of the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995, which statements are subject to substantial risks and uncertainties and are based on estimates and assumptions. All statements, other than statements of historical facts included in this press release, are forward-looking statements, including statements concerning: the expectations regarding Gyre’s research and development efforts, the anticipated timing of the submission of Gyre Therapeutics’ U.S. IND application for Hydronidone for the treatment of MASH-associated liver fibrosis, plans to conduct a hepatic impairment study of Hydronidone in U.S. subjects under Gyre Therapeutics’ active IND application, timing for the initiation of Gyre Pharmaceuticals’ Phase 2/3 trial in China for pirfenidone capsules for the treatment of RILI, including cases complicated by immune-related pneumonitis, the filing of an NDA with the NMPA and timing for potential commercial approval for Hydronidone for the treatment of CHB-associated liver fibrosis, expectations regarding conducting a confirmatory trial for Hydronidone in China, trial design of Gyre’s Phase 3 clinical trial evaluating pirfenidone for the treatment of pneumoconiosis, interactions with regulators, the structure, timing and completion of the proposed acquisition of Cullgen, the anticipated timing of closing of the acquisition of Cullgen, the future operations of the combined entity, the nature, strategy and focus of the combined Gyre and Cullgen entity, the development and commercial potential and potential benefits of any product candidates of the combined Gyre and Cullgen entity, Gyre’s ability to meet its expected revenue guidance and Gyre’s financial position and cash resources. In some cases, you can identify forward-looking statements by terms such as “may,” “might,” “will,” “objective,” “intend,” “should,” “could,” “can,” “would,” “expect,” “believe,” “design,” “estimate,” “predict,” “potential,” “plan” or the negative of these terms, and similar expressions intended to identify forward-looking statements. These statements reflect our plans, estimates, and expectations, as of the date of this press release. These statements involve known and unknown risks, uncertainties and other factors that could cause our actual results to differ materially from the forward-looking statements expressed or implied in this press release. Actual results and the timing of events could differ materially from those anticipated in such forward-looking statements as a result of these risks and uncertainties, which include, without limitation: Gyre’s ability to execute on its clinical development strategies; positive results from a clinical trial may not necessarily be predictive of the results of future or ongoing clinical trials; the timing or likelihood of regulatory filings and approvals; competition from competing products; the impact of general economic, health, industrial or political conditions in the United States or internationally; the sufficiency of Gyre’s capital resources and its ability to raise additional capital; supply chain and distribution delays and challenges. Additional risks and factors are identified under “Risk Factors” in Gyre’s Annual Report on Form 10-K for the year ended December 31, 2024, filed on March 17, 2025, and in subsequent filings with the Securities and Exchange Commission.

Gyre expressly disclaims any obligation to update any forward-looking statements whether as a result of new information, future events or otherwise, except as required by law.

For Investors:
David Zhang
Gyre Therapeutics
david.zhang@gyretx.com

View full release here.

Research News and Market Data on GYRE

March 2, 2026

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• Acquisition will create a U.S.- and China-based fully integrated biopharmaceutical company with revenue-producing commercial assets and a robust pipeline of degraders, targeting inflammatory diseases and cancers.
• Access to degrader-antibody conjugates (DACs) platform technology for future discovery engine.
• Strengthened leadership team designed to support future global growth.
• Transaction is anticipated to close early in the second quarter of 2026.
• An updated corporate presentation has been posted to the Gyre and Cullgen websites.

SAN DIEGO, March 02, 2026 (GLOBE NEWSWIRE) — Gyre Therapeutics, Inc. (Gyre or the Company) (Nasdaq: GYRE), an innovative, commercial-stage biopharmaceutical company dedicated to advancing fibrosis-first therapies across organ systems affected by chronic diseases, today announced its agreement to acquire Cullgen Inc. (Cullgen), a privately-held, clinical-stage biopharmaceutical company focused on the discovery and development of targeted protein degrader (TPD) and degrader antibody conjugate (DAC) therapies, in an all-stock transaction valued at approximately $300 million. Following the closure of the acquisition, the new combined entity will be a fully integrated biopharmaceutical company with U.S.- and China-based capabilities spanning from discovery to manufacturing and commercialization and covering multiple therapeutic areas including inflammatory diseases, cancers, and pain.

Under the terms of the definitive agreement, Cullgen will become a wholly owned subsidiary of Gyre. Upon the completion of the acquisition, the interim Chief Executive Officer and Executive Chairman of Gyre, Ping Zhang, will remain as the Executive Chairman. The current Chief Executive Officer of Cullgen, Dr. Ying Luo, is expected to become the President and Chief Executive Officer and a member of the board of directors of Gyre.

Dr. Luo, the expected President and Chief Executive Officer of Gyre, commented, “We are thrilled about the synergistic coalescing of our companies. Cullgen brings strong drug discovery capabilities and a solid preclinical and clinical pipeline to complement Gyre’s existing and highly efficient China-based manufacturing capabilities and sales team. Gyre is already a commercial-stage company with ETUARY® on the market in China for the treatment of lung fibrosis and a second product for liver fibrosis, Hydronidone (F351), nearing New Drug Application (NDA), submission in China. Gyre is also exploring the expansion of F351’s development in ex-China territories. Following the acquisition, we will have a fully integrated biopharmaceutical company that will be capable of leveraging emerging drug discovery capabilities in China and strong clinical development in the United States to address unmet medical needs worldwide. I am excited for the potential of TPDs and DACs to drive this Company’s future growth globally.”

Mr. Zhang, Chairman of Gyre, commented, “Recently, Gyre, through its majority owned subsidiary, Gyre Pharmaceuticals, had a pre-NDA meeting with the Center for Drug Evaluation (CDE) of China’s National Medical Products Administration (NMPA) which supported a conditional approval and priority review eligibility filing for Gyre Pharmaceuticals’ first-in-class anti-liver fibrosis candidate, Hydronidone, subject to formal approval. As a result, Gyre Pharmaceuticals plans to submit an NDA for Hydronidone for conditional approval in the first half of 2026 and conduct a Phase 3c confirmatory trial to support full approval in China. The addition of Cullgen’s TPD/DAC platform and pipeline is expected to enhance our long-term growth prospects. We are excited to have Cullgen colleagues join our team in both the United States and China.”

The transaction is expected to close early in the second quarter of 2026, subject to customary closing conditions, including necessary regulatory approvals in the United States.

Prior to entering into this transaction, Cullgen’s proposed merger with Pulmatrix was terminated.

Updated Corporate Presentation

In connection with this announcement, a new presentation has been posted on each company’s respective website. Visit http://www.cullgen.com or http://www.gyretx.com.

About Cullgen Inc.

Cullgen is a clinical-stage biopharmaceutical company focused on the discovery and development of targeted protein degrader and DAC therapies designed to improve the lives of patients suffering from critical conditions such as pain, cancer and inflammatory diseases. Cullgen has created a portfolio of highly selective targeted protein degrader product candidates designed to potently and efficiently eliminate therapeutically relevant proteins in patients. By leveraging its expertise in targeted protein degraders, Cullgen believes its product candidates have many distinct advantages over other therapeutic modalities, including higher selectivity, improved therapeutic profile and avoidance of known toxicities.

Cullgen’s lead product candidate, CG001419, is an oral pan-tropomyosin receptor kinase (TRK) degrader that previously completed a Phase 1 trial for the treatment of acute post-operative pain and Cullgen released positive top-line results from the study in late 2025. Cullgen recently submitted an IND for the molecule, and pending FDA allowance, expects to initiate a Phase 2 trial in acute pain in bunionectomy patients in the United States. The molecule is also being studied in a Phase 1 trial for the treatment of solid tumors. Cullgen’s second product candidate, CG009301, is a GSPT1 degrader being studied in a Phase 1 trial for the treatment of blood cancers, including relapsed/refractory acute myeloid leukemia, higher-risk myelodysplastic syndrome and acute lymphoblastic leukemia. In addition to CG001419 and CG009301, Cullgen is also progressing a number of preclinical programs including next-generation degrader-antibody conjugates.

For more information, please visit www.cullgen.com.

About Gyre Pharmaceuticals

Gyre Pharmaceuticals is a commercial-stage biopharmaceutical company committed to the research, development, manufacturing and commercialization of innovative drugs for organ fibrosis. Its flagship product, ETUARY^® (pirfenidone capsule), was the first approved treatment for IPF in the PRC in 2011 and has maintained a prominent market share (2024 net sales of $105.8 million). In addition, Gyre Pharmaceuticals’ pipeline includes Hydronidone, a structural analogue of pirfenidone, which demonstrated statistically significant fibrosis regression after 52 weeks of treatment in a pivotal Phase 3 clinical trial in CHB-associated liver fibrosis in the PRC. Hydronidone received Breakthrough Therapy designation by the CDE of the NMPA in March 2021. Gyre Pharmaceuticals is also developing treatments for PD, RILI with or without immune-related pneumonitis, COPD, PAH and ALF/ACLF. As of the third quarter of 2025, Gyre Therapeutics owns a 69.7% equity interest in Gyre Pharmaceuticals.

About Gyre Therapeutics

Gyre Therapeutics is a biopharmaceutical company headquartered in San Diego, CA, primarily focused on the development and commercialization of Hydronidone for liver fibrosis including MASH in the U.S. Gyre’s strategy builds on its experience in mechanistic studies using MASH rodent models and clinical studies in CHB-induced liver fibrosis. In the PRC, Gyre is advancing a broad pipeline through its controlling interest in Gyre Pharmaceuticals, including therapeutic expansions of ETUARY, and development programs for F573, F528, and F230.

Advisory and Legal Counsel

Moelis & Company LLC is acting as financial advisor to the special committee to Gyre’s Board of Directors, and Gyre’s legal counsel is Gibson, Dunn & Crutcher LLP.

Mintz, Levin, Cohn, Ferris, Glovsky & Popeo, P.C. is serving as legal counsel to Cullgen.

Forward-Looking Statements

This press release contains “forward-looking statements” within the meaning of the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995, which statements are subject to substantial risks and uncertainties and are based on estimates and assumptions. All statements, other than statements of historical facts included in this press release, are forward-looking statements, including statements concerning: the structure, timing and completion of the proposed acquisition; the anticipated timing of closing; the expected executive officers and directors of the combined entity; the future operations of the combined entity; the nature, strategy and focus of the combined entity; the development and commercial potential and potential benefits of any product candidates of the combined entity; and anticipated clinical drug development activities and related timelines, including the anticipated timing of the filing of Gyre’s NDA with the NMPA for the conditional approval of Hydronidone and the initiation of the confirmatory Phase 3c clinical trial of Hydronidone to support full approval in China and the anticipated timing of Cullgen’s Phase 2 trial of its TRK degrader in acute pain. In some cases, you can identify forward-looking statements by terms such as “may,” “might,” “will,” “objective,” “intend,” “should,” “could,” “can,” “would,” “expect,” “believe,” “design,” “estimate,” “predict,” “potential,” “plan” or the negative of these terms, and similar expressions intended to identify forward-looking statements. These statements reflect our plans, estimates, and expectations, as of the date of this press release. These statements involve known and unknown risks, uncertainties and other factors that could cause our actual results to differ materially from the forward-looking statements expressed or implied in this press release. Actual results and the timing of events could differ materially from those anticipated in such forward-looking statements as a result of these risks and uncertainties, which include, without limitation: the risk that the conditions to the closing of the acquisition are not satisfied; uncertainties as to the timing of the consummation of the acquisition and the ability of each of Gyre and Cullgen to consummate the acquisition; risks related to the failure or delay in obtaining required approvals from any governmental or quasi-governmental entity necessary to consummate the acquisition; unexpected costs, charges or expenses resulting from the acquisition; potential adverse reactions or changes to business relationships resulting from the announcement or completion of the acquisition; the uncertainties associated with Gyre’s and Cullgen’s product candidates, as well as risks associated with the clinical development and regulatory approval of product candidates, including potential delays in the commencement, enrollment and completion of clinical trials; risks related to the inability of the combined entity to obtain sufficient additional capital to continue to advance these product candidates and its preclinical programs; uncertainties in obtaining successful clinical results for product candidates and unexpected costs that may result therefrom; risks related to the failure to realize any value from product candidates and preclinical programs being developed and anticipated to be developed in light of inherent risks and difficulties involved in successfully bringing product candidates to market; risks associated with the possible failure to realize certain anticipated benefits of the acquisition, including with respect to future financial and operating results. Additional risks and factors are identified under “Risk Factors” in Gyre’s Annual Report on Form 10-K for the year ended December 31, 2024 filed on March 17, 2025, and in other filings with the Securities and Exchange Commission.

Gyre expressly disclaims any obligation to update any forward-looking statements whether as a result of new information, future events or otherwise, except as required by law.

CONTACTS:

Gyre Therapeutics, Inc. 
Ping Zhang, interim CEO and executive chairman
ping.zhang@gyretx.com

Cullgen Inc. 
Thomas Eastling, CFO
ir@cullgen.com

Investors
Chuck Padala
Managing Director, LifeSci Advisors
chuck@lifesciadvisors.com

Research News and Market Data on GYRE

October 15, 2025

PDF Version

SAN DIEGO, Oct. 15, 2025 (GLOBE NEWSWIRE) — Gyre Therapeutics (Nasdaq: GYRE), an innovative, commercial-stage biopharmaceutical company dedicated to advancing fibrosis-first therapies across organ systems affected by chronic disease, today announced that its indirect, majority-owned subsidiary, Gyre Pharmaceuticals Co., Ltd. (Gyre Pharmaceuticals), has completed patient enrollment in the 52-week Phase 3 clinical trial of its Class 1 drug, Pirfenidone capsules, for the treatment of pneumoconiosis.

A total of 272 patients have been enrolled in this multicenter, randomized, double-blind, placebo-controlled trial being conducted at 18 clinical research centers across China. The trial is designed to evaluate the efficacy and safety of 52 weeks of Pirfenidone capsule treatment in patients with pneumoconiosis, a chronic occupational lung disease characterized by progressive pulmonary fibrosis.

Unmet Medical Need in Pneumoconiosis

Pneumoconiosis remains the most common and severe occupational disease in China, with more than 450,000 surviving patients and thousands of new cases reported each year. It results from long-term inhalation of mineral dusts such as silica or coal, which triggers persistent inflammation and progressive fibrosis of the lung tissue. Over time, this excessive scar formation causes diffuse fibrosis and irreversible loss of lung function. Despite its prevalence and severity, there is currently no approved therapy in China that specifically targets the fibrotic mechanisms underlying pneumoconiosis.

Based on recent expert consensus, China’s pneumoconiosis treatment landscape represents a significant unmet medical need, underscoring the importance of developing therapies specifically designed to slow or halt the progression of fibrosis and improve long-term outcomes for affected patients.

About the 52-Week Phase 3 Trial

The ongoing trial compares Pirfenidone 1,800 mg/day (600 mg tid) with placebo over a 52-week double-blind treatment period.

• Primary Endpoint: Change from baseline in forced vital capacity (FVC) % predicted at Week 52.
• Key Secondary Endpoints: Changes in diffusing capacity of the lungs for carbon monoxide (DLCO), 6-minute walk distance, St. George’s Respiratory Questionnaire (SGRQ) score, and Modified Medical Research Council (mMRC) dyspnea scale, as well as rates of acute exacerbations, hospitalizations, and deaths.
• Safety Monitoring: Follows Gyre’s Development Safety Update Report (DSUR Dec 2023–Dec 2024). Most adverse events reported to date are mild to moderate, with no unexpected safety signals.
• Interim Analysis: None planned.

About Pirfenidone (ETUARY®)

Pirfenidone is an oral antifibrotic small molecule that received its original approval in China in 2011 by Gyre Pharmaceuticals for the treatment of idiopathic pulmonary fibrosis (IPF). It works by inhibiting TGF-β signaling and fibroblast proliferation. Gyre continues to advance Pirfenidone beyond IPF through multiple clinical programs, including the Phase 3 pneumoconiosis trial and the recently approved Phase 2/3 trial for oncology-related pulmonary complications such as radiation-induced lung injury (RILI) and checkpoint inhibitor pneumonitis (CIP).

About Gyre Therapeutics

Gyre Therapeutics is a biopharmaceutical company headquartered in San Diego, CA, primarily focused on the development and commercialization of Hydronidone for liver fibrosis, including MASH, in the United States. Gyre’s strategy builds on its experience in mechanistic studies using MASH rodent models and clinical studies in CHB-induced liver fibrosis. In the People’s Republic of China, Gyre is advancing a broad pipeline through its indirect controlling interest in Gyre Pharmaceuticals, including therapeutic expansions of ETUARY®, and development programs for F573, F528, and F230.

Forward-Looking Statements

This press release contains “forward-looking statements” within the meaning of the “safe harbor” provisions of the Private Securities Litigation Reform Act of 1995, which statements are subject to substantial risks and uncertainties and are based on estimates and assumptions. All statements, other than statements of historical facts included in this press release, are forward-looking statements, including statements concerning: the expectations regarding Gyre’s research and development efforts, including Gyre’s advancement of its Phase 3 trial in China for Pirfenidone capsules for the treatment of pneumoconiosis and the initiation of Gyre’s Phase 2/3 trial in China for Pirfenidone capsules for the treatment of RILI and CIP; and trial design of Gyre’s Phase 3 trial in China for Pirfenidone capsules for the treatment of pneumoconiosis. In some cases, you can identify forward-looking statements by terms such as “may,” “might,” “will,” “objective,” “intend,” “should,” “could,” “can,” “would,” “expect,” “believe,” “design,” “estimate,” “predict,” “potential,” “plan” or the negative of these terms, and similar expressions intended to identify forward-looking statements. These statements reflect our plans, estimates, and expectations, as of the date of this press release. These statements involve known and unknown risks, uncertainties and other factors that could cause our actual results to differ materially from the forward-looking statements expressed or implied in this press release. Actual results and the timing of events could differ materially from those anticipated in such forward-looking statements as a result of these risks and uncertainties, which include, without limitation: Gyre’s ability to execute on its clinical development strategies; positive results from a clinical trial may not necessarily be predictive of the results of future or ongoing clinical trials; the timing or likelihood of regulatory filings and approvals; competition from competing products; the impact of general economic, health, industrial or political conditions in the United States or internationally; the sufficiency of Gyre’s capital resources and its ability to raise additional capital. Additional risks and factors are identified under “Risk Factors” in Gyre’s Annual Report on Form 10-K for the year ended December 31, 2024 filed on March 17, 2025 and in other filings with the Securities and Exchange Commission.

Gyre expressly disclaims any obligation to update any forward-looking statements whether as a result of new information, future events or otherwise, except as required by law.

For Investors:
David Zhang
david.zhang@gyretx.com