**Dianthus Therapeutics Reports Financial Results and Operational Progress in 10-K Filing**
Dianthus Therapeutics, Inc., a clinical-stage biotechnology company, released its financial results and provided an operational update in its recent 10-K filing. The company, focused on developing therapies for severe autoimmune diseases, reported license revenue of $2.0 million for the year ended December 31, 2025, compared to $6.2 million for the previous year. This decrease is primarily attributed to lower reimbursable costs associated with ongoing clinical trials under the Tenacia Agreements, which replaced the Zenas Agreements. The company has not generated any revenue from product sales to date.
The company's research and development expenses significantly increased to $145.6 million in 2025 from $83.1 million in 2024. This rise is due to a $47.7 million increase in external research and development costs, including clinical operation activities, CMC activities, preclinical study costs, discovery expenses, and licensing and milestone payments, as well as a $14.8 million increase in internal research and development costs, such as personnel-related expenses and stock-based compensation. General and administrative expenses also increased to $34.3 million in 2025 from $25.0 million in 2024, driven by higher stock-based compensation and personnel costs. The company's net loss for the year ended December 31, 2025, was $162.3 million, compared to a net loss of $85.0 million for the year ended December 31, 2024.
Operationally, Dianthus Therapeutics is advancing its lead candidate, claseprubart, through mid- to late-stage clinical trials for generalized Myasthenia Gravis (gMG), Chronic Inflammatory Demyelinating Polyneuropathy (CIDP), and Multifocal Motor Neuropathy (MMN). The company reported positive top-line results from the Phase 2 MaGic trial of claseprubart in gMG and expects to initiate a Phase 3 registrational trial in mid-2026, with top-line results anticipated in the second half of 2028. An early "GO" announcement was made for the Phase 3 CAPTIVATE trial of claseprubart in CIDP, and initial top-line results from the Phase 2 MoMeNtum trial in MMN are expected in the second half of 2026. The company also entered into an exclusive license agreement with Nanjing Leads Biolabs Co., Ltd. for DNTH212, a bifunctional fusion protein targeting autoimmune diseases.
As of December 31, 2025, Dianthus Therapeutics had cash, cash equivalents, and investments totaling $514.4 million. Management believes these resources will be sufficient to fund operations into 2028, based on current operating plans. The company's strategy includes continuing enrollment in ongoing clinical trials, exploring claseprubart in other complement-dependent diseases, advancing DNTH212, and potentially in-licensing additional product candidates. The company anticipates that it will require substantial additional capital to finance its operations in the future.
About Dianthus Therapeutics, Inc. /DE/
Dianthus Therapeutics is a biotech company developing targeted complement system therapeutics for autoimmune and inflammatory diseases. Its lead candidate, DNTH103, is a monoclonal antibody designed to selectively inhibit active C1s, aiming for improved safety, efficacy, and convenience. The company focuses on diseases like myasthenia gravis, CIDP, and MMN, leveraging proprietary technology and strategic licensing to advance innovative, patient-friendly biologics.
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