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Clinical · Featured

Calixis Announces Commencement of a Phase 2 Trial of Oral KIT Inhibitor THB335 in Chronic Spontaneous Urticaria

Randomized, double-blind, placebo-controlled study of once-daily THB335 in adults who remain symptomatic despite antihistamines, including patients who have failed or are intolerant to advanced therapies.

Cambridge, Mass. — September 1, 2026

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Calixis's investigational compounds have not been approved by the U.S. Food and Drug Administration or any other regulatory authority. Their safety and efficacy have not been established. Forward-looking statements involve risks and uncertainties. This website is not medical advice.