Category: Severe asthma

In clinical trials, some patients using Tezspire for severe asthma reported initial symptom improvements and better lung function as early as 2 to 4 weeks after their first dose. However, the full, sustained benefits of **how long does it take Tezspire to start working** become more apparent over several months of consistent treatment.

According to FDA approval data, the biologic medication Tezspire (tezepelumab-ekko) is an add-on maintenance treatment for adults and children aged 12 and older with severe, uncontrolled asthma. Unlike other biologics that target specific downstream inflammatory pathways, Tezspire works by blocking a key protein called thymic stromal lymphopoietin (TSLP) early in the inflammatory cascade, providing broader efficacy for various asthma types.