
GDC-6599
A First-in-Class TRPA1 Antagonist Overcomes Toxicity Hurdles to Become Cough Candidate Genentech’s GDC-6599 is the first oral TRP Ankyrin 1 (TRPA1) antagonist to reach Ph. IIa (NCT05660850) for chronic cough after preclinical studies and a Ph. I trial showed it was well-tolerated, in contrast to prior molecules. The transient receptor potential (TRP) family of ion…