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[6-K] ASTRAZENECA PLC Current Report (Foreign Issuer)

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AstraZeneca (AZN) announced US FDA approval of Tezspire (tezepelumab) for chronic rhinosinusitis with nasal polyps (CRSwNP) as an add‑on maintenance treatment for adults and adolescents aged 12 years and older with inadequately controlled disease. This expands Tezspire beyond severe asthma into a second epithelial‑driven inflammatory condition, targeting thymic stromal lymphopoietin (TSLP).

The decision was supported by the Phase III WAYPOINT trial, where Tezspire delivered a statistically significant, clinically meaningful reduction in nasal polyp severity, with near‑elimination of surgery and significant reductions in systemic corticosteroid use versus placebo. CRSwNP affects up to approximately 320 million people worldwide, and many patients do not achieve lasting relief with current therapies. AstraZeneca and Amgen co‑develop and co‑commercialize Tezspire, sharing costs and profits; in the US, Amgen records product sales with AstraZeneca recognizing its share as Collaboration Revenue. A positive CHMP opinion has been adopted in the EU, and reviews are ongoing in multiple countries.

AstraZeneca (AZN) ha annunciato l'approvazione da parte della FDA degli Stati Uniti di Tezspire (tezepelumab) per la rinosinusite cronica con polipi nasali (CRSwNP) come trattamento di mantenimento di complemento per adulti e ragazzi dai 12 anni in su con malattia inadequatamente controllata. Questo amplia Tezspire oltre l'asma grave in una seconda condizione infiammatoria guidata dall'epitelio, mirata al thymic stromal lymphopoietin (TSLP).

La decisione è stata supportata dal trial di fase III WAYPOINT, in cui Tezspire ha fornito una riduzione statisticamente significativa e clinicamente rilevante della gravità dei polipi nasali, con quasi l'eliminazione della chirurgia e significativi riduzioni nell'uso di corticosteroidi sistemici rispetto al placebo. CRSwNP colpisce fino a circa 320 milioni di persone nel mondo, e molti pazienti non ottengono un sollievo duraturo con le terapie attuali. AstraZeneca e Amgen co-sviluppano e co-commercializzano Tezspire, condividendo costi e profitti; negli USA, Amgen registra le vendite del prodotto con AstraZeneca riconoscendo la propria quota come Ricavi da Collaborazione. Un'opinione positiva del CHMP è stata adottata nell'UE, e le revisioni sono in corso in diversi paesi.

AstraZeneca (AZN) anunció la aprobación por parte de la FDA de EE. UU. de Tezspire (tezepelumab) para la rinosinusitis crónica con poliposis nasal (CRSwNP) como tratamiento de mantenimiento de complemento para adultos y adolescentes de 12 años en adelante con enfermedad inadequadamente controlada. Esto expande Tezspire más allá del asma grave hacia una segunda condición inflamatoria impulsada por el epitelio, que apunta a la thymic stromal lymphopoietin (TSLP).

La decisión fue respaldada por el ensayo de Fase III WAYPOINT, donde Tezspire proporcionó una reducción estadísticamente significativa y clínicamente relevante de la gravedad de los pólipos nasales, con casi la eliminación de la cirugía y reducciones significativas en el uso de corticosteroides sistémicos frente al placebo. CRSwNP afecta a hasta aproximadamente 320 millones de personas en todo el mundo, y muchos pacientes no logran alivio duradero con las terapias actuales. AstraZeneca y Amgen co-desarrollan y co-comercializan Tezspire, compartiendo costos y ganancias; en EE. UU., Amgen registra las ventas del producto con AstraZeneca reconociendo su parte como Ingresos por Colaboración. Una opinión positiva del CHMP ha sido adoptada en la UE, y las revisiones continúan en varios países.

AstraZeneca(AZN)은 Tezspire(tezepelumab)가 미국 FDA의 만성 비강 부비동염(코 폴립 CRSwNP)에 대한 보존적 유지 치료제로 12세 이상 성인 및 사춘기 환자에서 충분히 관리되지 않는 질환에 대해 승인되었다고 발표했습니다. 이는 Tezspire를 중증 천식에 이은 두 번째 에피텔리얼 구동 염증성 질환으로 확장하며, 흉성 기질 림프구전구체(thymic stromal lymphopoietin, TSLP)를 표적화합니다.

이 결정은 제3상 WAYPOINT 연구에 의해 뒷받침되었으며, Tezspire는 비강 폴립의 중증도에 대해 통계적으로 유의하고 임상적으로 의미 있는 감소를 보였고, 수술의 사실상 제거와 위약 대비 전신 코르티코스테로이드 사용의 유의미한 감소를 보였습니다. CRSwNP는 전 세계적으로 약 3200만~3200만 명에 이르며, 많은 환자들이 현재 치료로 지속적인 완화를 얻지 못합니다. ASTRAZENECA와 Amgen은 Tezspire를 공동으로 개발하고 공동으로 상용화하며 비용과 이익을 공유합니다. 미국에서는 Amgen이 제품 판매를 기록하고, AstraZeneca가 협력 수익으로 인식합니다. EU에는 CHMP의 긍정적 의견이 채택되었으며, 다수 국가에서 검토가 진행 중입니다.

AstraZeneca (AZN) a annoncé l'approbation par la FDA américaine de Tezspire (tezepelumab) pour la rhinosinusite chronique avec polypose nasale (CRSwNP) en tant que traitement d'entretien d'appoint pour les adultes et les adolescents âgés de 12 ans et plus présentant une maladie mal contrôlée. Cela étend Tezspire au-delà de l'asthme grave vers une deuxième pathologie inflammatoire épithéliale, ciblant le thymic stromal lymphopoietin (TSLP).

La décision a été étayée par l'essai de phase III WAYPOINT, où Tezspire a démontré une réduction statistiquement significative et cliniquement pertinente de la gravité des polypes nasaux, avec une quasi-suppression de la chirurgie et des réductions significatives de l'utilisation de corticostéroïdes systémiques par rapport au placebo. La CRSwNP touche jusqu'à environ 320 millions de personnes dans le monde, et de nombreux patients n'obtiennent pas de soulagement durable avec les thérapies actuelles. AstraZeneca et Amgen développent et commercialisent conjointement Tezspire, en partageant les coûts et les profits ; aux États‑Unis, Amgen enregistre les ventes du produit tandis qu'AstraZeneca reconnait sa part comme Revenus de Collaboration. Une opinion positive du CHMP a été adoptée dans l'UE, et des examens sont en cours dans plusieurs pays.

AstraZeneca (AZN) hat die Zulassung der US-amerikanischen FDA für Tezspire (Tezepelumab) zur chronischen Rhinosinusitis mit Nasenpolypen (CRSwNP) bekannt gegeben als ergänzende Erhaltungstherapie für Erwachsene und Jugendliche ab 12 Jahren mit unzureichend kontrollierter Erkrankung. Dies erweitert Tezspire über das schwere Asthma hinaus zu einer zweiten epithelialen entzündlichen Erkrankung und zielt auf Thymic Stromal Lymphopoietin (TSLP).

Die Entscheidung wurde durch die Phase-III- WAYPOINT-Studie gestützt, in der Tezspire eine statistisch signifikante, klinisch bedeutsame Reduktion der Polypen-Schwere zeigte, mit nahezu vollständiger Vermeidung von Operationen und signifikanten Reduktionen des systemischen Kortikosteroid-Verbrauchs gegenüber Placebo. CRSwNP betrifft weltweit bis zu ca. 320 Millionen Menschen, und viele Patienten erreichen keine anhaltende Linderung mit den derzeitigen Therapien. AstraZeneca und Amgen entwickeln Tezspire gemeinsam weiter und vermarkten es gemeinsam; in den USA verzeichnet Amgen die Produktverkäufe, während AstraZeneca seinen Anteil als Kooperationserlöse anerkennt. Eine positive CHMP-Meinung wurde in der EU angenommen, und Bewertungen laufen in mehreren Ländern.

أعلنت شركة أسترازينيكا (AZN) أن إدارة الغذاء والدواء الأمريكية (FDA) وافقت على Tezspire (tezepelumab) لعلاج التهاب الأنف الجيوب الأنفية المزمن المصحوب بالزوائد الأنفية (CRSwNP) كعلاج صيانة إضافي للكبار والمراهقين الذين تبلغ أعمارهم 12 عامًا فما فوق والذين يعانون من مرض غير مُدار بشكل كاف. وهذا يوسّع Tezspire ليشمل إلى جانب الربو الشديد حالة التهاباً بطبقة ظهارية أخرى، مستهدفاً thymic stromal lymphopoietin (TSLP).

وقد دعمت القرار تجربة WAYPOINT من المرحلة الثالثة، حيث أظهرت Tezspire انخفاضاً ذا دلالة إحصائية وبعلمياً ذو معنى في شدة الزوائد الأنفية، مع تقليل شبه كامل للجراحة وتقليل كبير في استخدام الكورتيكوستيرويدات الجهازية مقارنة بالدواء الوهمي. يؤثر CRSwNP على نحو 320 مليون شخص تقريبا حول العالم، وكثير من المرضى لا يحصلون على راحة مستدامة مع العلاجات الحالية. تقوم AstraZeneca وAmgen بتطوير Tezspire معاً وترويجها بشكل مشترك، وتشارك التكاليف والأرباح؛ في الولايات المتحدة تسجل Amgen مبيعات المنتج بينما تعترف AstraZeneca بحصتها كإيرادات تعاونية. تم اعتماد رأي CHMP إيجابي في الاتحاد الأوروبي، وتجرى عمليات المراجعة في عدة دول.

阿斯利康(AZN)宣布美国食品药品监督管理局(FDA)已批准 Tezspire(tezepelumab)用于慢性鼻窦炎伴鼻息肉(CRSwNP),作为成人及12岁及以上青少年在病情控制不足时的维持治疗。 这将 Tezspire 的适用范围从重度哮喘扩展到第二种上皮驱动的炎症性疾病,靶向胸腺源性淋巴细胞前体细胞因子(TSLP)。

这一决定得到 III 期 WAYPOINT 试验的支持,该试验显示 Tezspire 在鼻息肉严重度方面具有统计学意义且临床上有意义的降低,与安慰剂相比几乎可以取消手术,且全身性糖皮质激素使用显著减少。CRSwNP 影响全球约 3.2 亿人,许多患者对现有治疗并未获得持久缓解。阿斯利康与安进共同开发并共同商业化 Tezspire,分享成本与利润;在美国,安进记录产品销售,阿斯利康将其份额认定为合作收入。欧盟已采纳 CHMP 的积极意见,多个国家正在进行评审。

Positive
  • None.
Negative
  • None.

Insights

US approval broadens Tezspire’s label; revenue impact depends on uptake.

Tezspire now includes CRSwNP in the US for patients aged 12+ with inadequately controlled disease. The label expansion is anchored by Phase III WAYPOINT showing reduced polyp severity, near-elimination of surgery, and lower systemic steroid use versus placebo.

Commercially, AstraZeneca and Amgen share costs and profits; Amgen books US product sales while AstraZeneca records its US share as Collaboration Revenue. The approval adds a second inflammatory disease area leveraging the same TSLP mechanism.

Outside the US, a positive CHMP opinion and ongoing reviews in the EU, China, Japan and others could expand access. Actual sales will depend on physician adoption, payer coverage, and positioning versus existing biologics; timing beyond the US is determined by local regulatory outcomes.

AstraZeneca (AZN) ha annunciato l'approvazione da parte della FDA degli Stati Uniti di Tezspire (tezepelumab) per la rinosinusite cronica con polipi nasali (CRSwNP) come trattamento di mantenimento di complemento per adulti e ragazzi dai 12 anni in su con malattia inadequatamente controllata. Questo amplia Tezspire oltre l'asma grave in una seconda condizione infiammatoria guidata dall'epitelio, mirata al thymic stromal lymphopoietin (TSLP).

La decisione è stata supportata dal trial di fase III WAYPOINT, in cui Tezspire ha fornito una riduzione statisticamente significativa e clinicamente rilevante della gravità dei polipi nasali, con quasi l'eliminazione della chirurgia e significativi riduzioni nell'uso di corticosteroidi sistemici rispetto al placebo. CRSwNP colpisce fino a circa 320 milioni di persone nel mondo, e molti pazienti non ottengono un sollievo duraturo con le terapie attuali. AstraZeneca e Amgen co-sviluppano e co-commercializzano Tezspire, condividendo costi e profitti; negli USA, Amgen registra le vendite del prodotto con AstraZeneca riconoscendo la propria quota come Ricavi da Collaborazione. Un'opinione positiva del CHMP è stata adottata nell'UE, e le revisioni sono in corso in diversi paesi.

AstraZeneca (AZN) anunció la aprobación por parte de la FDA de EE. UU. de Tezspire (tezepelumab) para la rinosinusitis crónica con poliposis nasal (CRSwNP) como tratamiento de mantenimiento de complemento para adultos y adolescentes de 12 años en adelante con enfermedad inadequadamente controlada. Esto expande Tezspire más allá del asma grave hacia una segunda condición inflamatoria impulsada por el epitelio, que apunta a la thymic stromal lymphopoietin (TSLP).

La decisión fue respaldada por el ensayo de Fase III WAYPOINT, donde Tezspire proporcionó una reducción estadísticamente significativa y clínicamente relevante de la gravedad de los pólipos nasales, con casi la eliminación de la cirugía y reducciones significativas en el uso de corticosteroides sistémicos frente al placebo. CRSwNP afecta a hasta aproximadamente 320 millones de personas en todo el mundo, y muchos pacientes no logran alivio duradero con las terapias actuales. AstraZeneca y Amgen co-desarrollan y co-comercializan Tezspire, compartiendo costos y ganancias; en EE. UU., Amgen registra las ventas del producto con AstraZeneca reconociendo su parte como Ingresos por Colaboración. Una opinión positiva del CHMP ha sido adoptada en la UE, y las revisiones continúan en varios países.

AstraZeneca(AZN)은 Tezspire(tezepelumab)가 미국 FDA의 만성 비강 부비동염(코 폴립 CRSwNP)에 대한 보존적 유지 치료제로 12세 이상 성인 및 사춘기 환자에서 충분히 관리되지 않는 질환에 대해 승인되었다고 발표했습니다. 이는 Tezspire를 중증 천식에 이은 두 번째 에피텔리얼 구동 염증성 질환으로 확장하며, 흉성 기질 림프구전구체(thymic stromal lymphopoietin, TSLP)를 표적화합니다.

이 결정은 제3상 WAYPOINT 연구에 의해 뒷받침되었으며, Tezspire는 비강 폴립의 중증도에 대해 통계적으로 유의하고 임상적으로 의미 있는 감소를 보였고, 수술의 사실상 제거와 위약 대비 전신 코르티코스테로이드 사용의 유의미한 감소를 보였습니다. CRSwNP는 전 세계적으로 약 3200만~3200만 명에 이르며, 많은 환자들이 현재 치료로 지속적인 완화를 얻지 못합니다. ASTRAZENECA와 Amgen은 Tezspire를 공동으로 개발하고 공동으로 상용화하며 비용과 이익을 공유합니다. 미국에서는 Amgen이 제품 판매를 기록하고, AstraZeneca가 협력 수익으로 인식합니다. EU에는 CHMP의 긍정적 의견이 채택되었으며, 다수 국가에서 검토가 진행 중입니다.

AstraZeneca (AZN) a annoncé l'approbation par la FDA américaine de Tezspire (tezepelumab) pour la rhinosinusite chronique avec polypose nasale (CRSwNP) en tant que traitement d'entretien d'appoint pour les adultes et les adolescents âgés de 12 ans et plus présentant une maladie mal contrôlée. Cela étend Tezspire au-delà de l'asthme grave vers une deuxième pathologie inflammatoire épithéliale, ciblant le thymic stromal lymphopoietin (TSLP).

La décision a été étayée par l'essai de phase III WAYPOINT, où Tezspire a démontré une réduction statistiquement significative et cliniquement pertinente de la gravité des polypes nasaux, avec une quasi-suppression de la chirurgie et des réductions significatives de l'utilisation de corticostéroïdes systémiques par rapport au placebo. La CRSwNP touche jusqu'à environ 320 millions de personnes dans le monde, et de nombreux patients n'obtiennent pas de soulagement durable avec les thérapies actuelles. AstraZeneca et Amgen développent et commercialisent conjointement Tezspire, en partageant les coûts et les profits ; aux États‑Unis, Amgen enregistre les ventes du produit tandis qu'AstraZeneca reconnait sa part comme Revenus de Collaboration. Une opinion positive du CHMP a été adoptée dans l'UE, et des examens sont en cours dans plusieurs pays.

AstraZeneca (AZN) hat die Zulassung der US-amerikanischen FDA für Tezspire (Tezepelumab) zur chronischen Rhinosinusitis mit Nasenpolypen (CRSwNP) bekannt gegeben als ergänzende Erhaltungstherapie für Erwachsene und Jugendliche ab 12 Jahren mit unzureichend kontrollierter Erkrankung. Dies erweitert Tezspire über das schwere Asthma hinaus zu einer zweiten epithelialen entzündlichen Erkrankung und zielt auf Thymic Stromal Lymphopoietin (TSLP).

Die Entscheidung wurde durch die Phase-III- WAYPOINT-Studie gestützt, in der Tezspire eine statistisch signifikante, klinisch bedeutsame Reduktion der Polypen-Schwere zeigte, mit nahezu vollständiger Vermeidung von Operationen und signifikanten Reduktionen des systemischen Kortikosteroid-Verbrauchs gegenüber Placebo. CRSwNP betrifft weltweit bis zu ca. 320 Millionen Menschen, und viele Patienten erreichen keine anhaltende Linderung mit den derzeitigen Therapien. AstraZeneca und Amgen entwickeln Tezspire gemeinsam weiter und vermarkten es gemeinsam; in den USA verzeichnet Amgen die Produktverkäufe, während AstraZeneca seinen Anteil als Kooperationserlöse anerkennt. Eine positive CHMP-Meinung wurde in der EU angenommen, und Bewertungen laufen in mehreren Ländern.

FORM 6-K
 
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
 
 
Report of Foreign Issuer
 
Pursuant to Rule 13a-16 or 15d-16 of
the Securities Exchange Act of 1934
 
For the month of October 2025 
 
Commission File Number: 001-11960
 
AstraZeneca PLC
 
1 Francis Crick Avenue
Cambridge Biomedical Campus
Cambridge CB2 0AA
United Kingdom
 
 
Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.
 
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Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):
 
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AstraZeneca PLC
 
INDEX TO EXHIBITS
 
 
1.
US FDA Approves Tezspire in CRSwNP
 
20 October 2025
 
Tezspire approved in the US for chronic rhinosinusitis with nasal polyps
 
Approval broadens indication for Tezspire to a second disease characterised by epithelial-driven inflammation
 
AstraZeneca and Amgen's Tezspire (tezepelumab) has been approved in the US for the add-on maintenance treatment of adult and paediatric patients aged 12 years and older with inadequately controlled chronic rhinosinusitis with nasal polyps (CRSwNP), a complex epithelial-driven inflammatory condition. Tezspire is the first and only biologic that targets thymic stromal lymphopoietin (TSLP) to be approved for CRSwNP.
 
The approval by the US Food and Drug Administration (FDA) was based on efficacy and safety data from the WAYPOINT Phase III trial, which were presented at the 2025 American Academy of Allergy Asthma & Immunology (AAAAI)/World Allergy Organization (WAO) Joint Congress and simultaneously published in The New England Journal of Medicine.1,2 In the trial, Tezspire demonstrated a statistically significant and clinically meaningful reduction in nasal polyp severity, and showed near-elimination of the need for surgery and significant reduction in systemic corticosteroid use vs. placebo.1,2
 
Dr. Joseph Han, Vice Chair of Department of Otolaryngology - Head and Neck Surgery, Old Dominion University, US, and co-primary investigator in the WAYPOINT trial, said: "Over 320 million lives globally are disrupted by chronic rhinosinusitis with nasal polyps. The FDA approval of Tezspire brings forward a new treatment option that has demonstrated rapid and sustained symptom improvement, nearly eliminating the need for future surgeries and significantly reducing systemic steroid use. By targeting TSLP at the top of the inflammatory cascade, Tezspire offers a novel option for patients who continue to endure the disruption of this disease despite available treatments."
 
Kenneth Mendez, President and CEO of the Asthma and Allergy Foundation of America (AAFA), said: "Chronic rhinosinusitis with nasal polyps is a persistent and often-overlooked disease that can significantly impact daily life, robbing patients of their ability to breathe without congestion and full sense of smell. This approval introduces an innovative treatment option for patients with the potential to help address the ongoing cycle of debilitating symptoms, surgeries and systemic steroid use."
 
Ruud Dobber, Executive Vice President, BioPharmaceuticals Business Unit, AstraZeneca said: "Today's approval of Tezspire in chronic rhinosinusitis with nasal polyps expands the reach of this innovative treatment option to patients living with an epithelial-driven inflammatory disease beyond severe asthma. Building on the widespread, established use of Tezspire in severe asthma, this exciting milestone now reinforces its unique mechanism of action across both the upper and lower airways andreflects our commitment to transforming care for patients who face the daily burden of chronic respiratory and immune-mediated diseases."
 
CRSwNP affects up to approximately 320 million people worldwide and is a complex epithelial-driven inflammatory condition characterised by persistent inflammation and benign polyp growths within the nasal cavity. People living with CRSwNP commonly experience airflow obstruction and symptoms including congestion and an impaired sense of smell.3-7 For many patients, current therapies such as systemic and intranasal corticosteroids and repeated sinus surgeries do not offer lasting relief.4
 
The safety profile and tolerability of Tezspire in the WAYPOINT trial was generally consistent with the known profile of the medicine.1 The most frequently reported adverse events in the trial were COVID-19, nasopharyngitis and upper respiratory tract infection.1 
 
The Committee for Medicinal Products for Human Use (CHMP) recently adopted a positive opinion for the approval of Tezspire in the EU for treatment of CRSwNP.8 Regulatory applications are currently under review in the EU, China, Japan and several other countries.
 
Tezspire is currently approved for the treatment of severe asthma in the US, EU, Japan and more than 60 countries across the globe.9-11
 
Notes
 
Chronic Rhinosinusitis with Nasal Polyps (CRSwNP (nasal polyps)) 
CRSwNP is a complex inflammatory disorder, characterised by persistent inflammation of the nasal mucosa accompanied by benign growths, called nasal polyps.3,4  Nasal polyps can block nasal passages and lead to breathing problems, difficulty in sense of smell, nasal discharge, facial pain, sleep disturbance and other adverse effects on quality of life. 5-7
 
Epithelial dysfunction and inflammation are important characteristics of chronic rhinosinusitis and impede the ability of the epithelium to act as a physical and immunological barrier against the external environment.12,13 Thymic stromal lymphopoietin (TSLP) is an epithelial cytokine that has been implicated in shared pathophysiological processes underlying severe asthma and CRSwNP.12,13
 
Current treatments for CRSwNP include intranasal and/or systemic corticosteroids, surgery and biologics.4,7,14-19
 
Phase III WAYPOINT trial 
WAYPOINT was a double-blind, multi-centre, randomised, placebo-controlled, parallel group trial designed to evaluate the efficacy and safety of tezepelumab in adults with uncontrolled CRSwNP.1,2,20 Participants received tezepelumab or placebo, administered via subcutaneous injection. The trial also included a post-treatment follow-up period of 12-24 weeks for participants who completed the 52-week treatment period.1,20
 
The co-primary endpoints of the trial were change from baseline in total nasal polyp size, measured by the endoscopic total Nasal Polyp Score, and change from baseline in bi-weekly mean nasal congestion, measured by the participant reported Nasal Congestion Score evaluated as part of the daily Nasal Polyposis Symptom Diary.1,20 Key secondary endpoints included loss of smell; improvement in disease specific health-related quality of life as measured by SinoNasal Outcome Test (SNOT-22) score; Lund-Mackay score; time to surgery decision and/or systemic corticosteroids for nasal polyposis; time to nasal polyposis surgery decision; time to systemic corticosteroids for nasal polyposis; Nasal Polyposis Symptom Diary total symptom score and, in the population with co-morbid asthma, pre-bronchodilator FEV1 at Week 52.1,20
 
Tezepelumab  
Tezepelumab is being developed by AstraZeneca in collaboration with Amgen as a first-in-class human monoclonal antibody that inhibits the action of thymic stromal lymphopoietin (TSLP), a key epithelial cytokine that sits at the top of multiple inflammatory cascades and is critical in the initiation and persistence of allergic, eosinophilic and other types of epithelial inflammation associated with severe asthma, CRSwNP and other inflammatory diseases.12,13
 
TSLP is released by the epithelium in response to environmental triggers (including allergens, viruses and other airborne particles) associated with asthma, CRSwNP, chronic obstructive pulmonary disease (COPD), eosinophilic esophagitis (EoE) and other diseases.13,21 Across these disease states, the expression of TSLP is increased and correlates with disease severity.7,11
 
Tezspire is approved as a single-use pre-filled syringe and auto-injector for self-administration in the US and EU.9-11 Since 2021, over 100,000 patients have been treated with Tezspire for severe asthma.22
 
Beyond CRSwNP, Tezspire is also being explored in Phase III trials in COPD and EoE.23,24 In October 2021, Tezspire was granted Orphan Drug Designation by the U.S. Food and Drug Administration (FDA) for the treatment of EoE.25
 
Amgen Collaboration  
The 2012 Collaboration Agreement between Amgen and AstraZeneca has been amended and updated over time. For Tezspire, both companies continue to share costs and profits equally after payment by AstraZeneca of a mid single-digit inventor royalty to Amgen. AstraZeneca continues to lead development and Amgen continues to lead manufacturing. All aspects of the collaboration are under the oversight of joint governing bodies. Under the agreement, Amgen and AstraZeneca jointly commercialise Tezspire in the US. Amgen records product sales in the US, with AZ recording its share of US profits as Collaboration Revenue. Outside of the US, AstraZeneca records product sales, with Amgen recording profit share as Other/Collaboration revenue.  
 
AstraZeneca in Respiratory & Immunology 
Respiratory & Immunology, part of AstraZeneca BioPharmaceuticals is a key disease area and growth driver to the Company. 
 
AstraZeneca is an established leader in respiratory care with a 50-year heritage and a growing portfolio of medicines in immune-mediated diseases. The Company is committed to addressing the vast unmet needs of these chronic, often debilitating, diseases with a pipeline and portfolio of inhaled medicines, biologics and new modalities aimed at previously unreachable biologic targets. Our ambition is to deliver life-changing medicines that help eliminate COPD as a leading cause of death, eliminate asthma attacks and achieve clinical remission in immune-mediated diseases. 
 
AstraZeneca
AstraZeneca (LSE/STO/Nasdaq: AZN) is a global, science-led biopharmaceutical company that focuses on the discovery, development, and commercialisation of prescription medicines in Oncology, Rare Diseases, and BioPharmaceuticals, including Cardiovascular, Renal & Metabolism, and Respiratory & Immunology. Based in Cambridge, UK, AstraZeneca's innovative medicines are sold in more than 125 countries and used by millions of patients worldwide. Please visit astrazeneca.com and follow the Company on Social Media @AstraZeneca.
 
Contacts
For details on how to contact the Investor Relations Team, please click here. For Media contacts, click here.
 
References
1.   Lipworth BJ, Han JK, et al. Tezepelumab in adults with severe chronic rhinosinusitis with nasal polyps. N Engl J Med. 2025;392(12):1178-1188. DOI: 10.1056/NEJMoa2414482.
2.   Lipworth BJ, Han JK, et al. Efficacy and safety of tezepelumab in adults with severe chronic rhinosinusitis with nasal polyps: results from the Phase 3 WAYPOINT Study. [Late breaking oral presentation]. Presented at the American Academy of Allergy, Asthma & Immunology/World Allergy Organization Joint Congress 2025 (28 February - 03 March).   
3.   Bachert C, et al. Phenotypes and Emerging Endotypes of Chronic Rhinosinusitis. J Allergy Clin Immunol Pract. 2016;4(4):621-628.    
4.   Del Toro E, Portela J. Nasal Polyps. [Updated 2023 Jul 31]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan. Available at: https://www.ncbi.nlm.nih.gov/books/NBK560746/. Accessed October 2025.
5.   Stevens WW, et al. Chronic Rhinosinusitis with Nasal Polyps. J Allergy Clin Immunol Pract. 2016; 4(4):565-572.   
6.   Abdalla S, et al. Prevalence of sinonasal outcome test (SNOT-22) symptoms in patients undergoing surgery for chronic rhinosinusitis in the England and Wales National prospective audit. Clin Otolaryngol. 2012;37(4):276-282.   
7.   Chen S, et al. Systematic literature review of the epidemiology and clinical burden of chronic rhinosinusitis with nasal polyposis. Curr Med Res Opin. 2020;36(11):1897-1911.  
8.   AstraZeneca news release. Tezspire recommended for approval in the EU by CHMP for chronic rhinosinusitis with nasal polyps. Available at: https://www.astrazeneca.com/media-centre/press-releases/2025/tezspire-recommended-for-approval-in-eu-for-crswnp.html. Accessed October 2025.
9.   TEZSPIRE (tezepelumab) US prescribing information. Available at: https://www.accessdata.fda.gov/drugsatfda_docs/label/2023/761224s003lbl.pdf. Accessed October 2025.
10.  TEZSPIRE (tezepelumab) Summary of Product Characteristics. Available at: https://www.ema.europa.eu/en/documents/product-information/tezspire-epar-product-information_en.pdf. Accessed October 2025.
11.  AstraZeneca news release. TEZSPIRE approved in Japan for the treatment of severe asthma. Available at: https://www.astrazeneca.com/media-centre/press-releases/2022/tezspire-approved-in-japan-for-severe-asthma.html. Accessed October 2025.
12.  Corren J, et al. Tezepelumab in adults with uncontrolled asthma. N Engl J Med. 2017;377:936-946.    
13.  Varricchi G, et al. Thymic Stromal Lymphopoietin Isoforms, Inflammatory Disorders, and Cancer. Front Immunol. 2018;9:1595.  
14.  Xolair (omalizumab) Summary of Product Characteristics; Available at: https://www.ema.europa.eu/en/documents/product-information/xolair-epar-product-information_en.pdf. Accessed October 2025.
15.  Xolair (omalizumab) US prescribing information; Available at: https://www.gene.com/download/pdf/xolair_prescribing.pdf. Accessed: October 2025.
16.  Nucala (mepolizumab) Summary of Product Characteristics. Available at: https://www.ema.europa.eu/en/documents/product-information/nucala-epar-product-information_en.pdf. Accessed October 2025.
17.  Nucala (mepolizumab) US prescribing information; Available at: https://www.accessdata.fda.gov/drugsatfda_docs/label/2021/761122s006,125526s018lbl.pdf. Accessed October 2025.
18.  Dupixent (dupilumab) Summary of Product Characteristics. Available at: https://www.ema.europa.eu/en/documents/product-information/dupixent-epar-product-information_en.pdf. Accessed October 2025.
19.  Dupixent (dupilumab) US prescribing information; Available at: https://www.regeneron.com/downloads/dupixent_fpi.pdf. Accessed October 2025.
20.  Clinicaltrials.gov. Efficacy and Safety of Tezepelumab in Participants With Severe Chronic Rhinosinusitis With Nasal Polyposis (WAYPOINT). Available at: https://clinicaltrials.gov/ct2/show/NCT04851964. Accessed October 2025.
21.  Zhang M, et al. Hypoxia induces the production of epithelial-derived cytokines in eosinophilic chronic rhinosinusitis with nasal polyps. Int Immunopharmacol. 2023;121:110559.  
22.  AstraZeneca Data on file. 2025. REF-278452. 
23.  Clinicaltrials.gov. Tezepelumab COPD Exacerbation Study (COURSE) [Online]. Available at: https://clinicaltrials.gov/ct2/show/NCT04039113. Accessed October 2025.
24.  Clinicaltrials.gov. Efficacy and Safety of Tezepelumab in Patients with Eosinophilic Esophagitis (CROSSING). Available at: https://clinicaltrials.gov/study/NCT05583227. Accessed October 2025.
25. AstraZeneca news release. Tezepelumab granted Orphan Drug Designation in the US for eosinophilic esophagitis. Available at: https://www.astrazeneca.com/media-centre/press-releases/2021/tezepelumab-granted-orphan-drug-designation-in-the-us-for-eosinophilic-esophagitis.html. Accessed October 2025.
 
Matthew Bowden
Company Secretary
AstraZeneca PLC
 
 
 
 
 
SIGNATURES
 
Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.
 
 
AstraZeneca PLC
 
 
Date: 20 October 2025
 
 
By: /s/ Matthew Bowden
 
Name: Matthew Bowden
 
Title: Company Secretary

FAQ

What did AstraZeneca (AZN) announce on its Form 6-K?

The US FDA approved Tezspire (tezepelumab) for add‑on maintenance treatment of CRSwNP in patients aged 12 years and older with inadequately controlled disease.

What clinical evidence supported Tezspire’s CRSwNP approval?

Phase III WAYPOINT data showed a significant reduction in nasal polyp severity, near‑elimination of surgery, and significant reductions in systemic corticosteroid use versus placebo.

How common is CRSwNP globally?

CRSwNP affects up to approximately 320 million people worldwide and is characterized by persistent epithelial‑driven inflammation and benign polyp growths.

What is Tezspire’s mechanism of action in CRSwNP?

Tezspire targets TSLP, an epithelial cytokine at the top of multiple inflammatory cascades implicated in severe asthma and CRSwNP.

How do AstraZeneca and Amgen account for Tezspire sales?

In the US, Amgen records product sales; AstraZeneca records its share of US profits as Collaboration Revenue. Outside the US, AstraZeneca records product sales and Amgen records its profit share.

Is Tezspire approved for other indications?

Yes. Tezspire is approved for the treatment of severe asthma in the US, EU, Japan and more than 60 countries.

What is the regulatory status outside the US for Tezspire in CRSwNP?

The EU’s CHMP adopted a positive opinion, and applications are under review in the EU, China, Japan and several other countries.
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