AZ launches Tezspire in Korea with expanded indication

Expands indication beyond asthma to include chronic sinusitis with nasal polyps

Phase III study shows improvement in nasal polyps and nasal congestion…confirms reduction in surgery and steroid use

AstraZeneca Korea (CEO Eldana Sauran) announced on the 8th the domestic launch of Tezspire (tezepelumab) as an add-on maintenance treatment for severe asthma and chronic rhinosinusitis with nasal polyps (CRSwNP).

With this domestic launch, Tezspire has simultaneously expanded its indication to include its use as an add-on maintenance treatment for adults with inadequately controlled CRSwNP, broadening its use as an anti-TSLP (Thymic Stromal Lymphopoietin) treatment option for severe asthma to CRSwNP.

TSLP is a driver of multiple inflammatory responses and is expressed at higher levels in CRSwNP patients than in patients without polyps. Tezspire is an anti-TSLP monoclonal antibody that blocks TSLP activity at the upstream level of inflammatory pathways. Tezspire’s clinical efficacy and safety profile were confirmed in the global Phase III WAYPOINT trial.

The WAYPOINT study was a multicenter, randomized, double-blind, placebo-controlled Phase III clinical trial conducted in 10 countries involving 408 patients aged 18 years and older with CRSwNP who had severe, uncontrolled symptoms.

Results showed that at Week 52, the Tezspire treatment group demonstrated statistically significant improvements compared to the placebo group, with a decrease of -2.07 in the Nasal Polyps Score (NPS), which assesses the size and extent of nasal polyps, and a decrease of -1.03 in the Nasal Congestion Score (NCS), which assesses the degree of nasal congestion. Furthermore, these improvements were observed as early as week 4 and week 2 of treatment, respectively, and were sustained through week 52.

Ji-young Kim, Executive Director of AstraZeneca Korea’s Respiratory Division, said, “We are pleased that we were able to expand Tezspire’s indication in Korea following FDA approval in October last year for CRSwNP. Clinical trials confirm Tezspire can be an effective treatment option not only for asthma but also for patients with CRSwNP, and we expect it to help patients manage their respiratory conditions.”

Rhinosinusitis is characterized by two or more symptoms, including nasal congestion, nasal obstruction, or a runny nose, and becomes chronic when these symptoms persist for 12 weeks or longer. Additionally, when accompanied by nasal polyps, it is classified as CRSwNP.