Tezepelumab is indicated for the add-on maintenance treatment of people aged twelve years and older with severe asthma.[5][7]
History
Two main studies including over 1,500 adults and adolescents with inadequately controlled asthma showed that tezepelumab was effective in reducing the number of severe asthma flare‑ups.[7]
The benefits and side effects of tezepelumab were evaluated in two clinical trials of participants with severe asthma.[11] All participants were taking their usual treatment for asthma.[11] In addition, participants received new treatment with either tezepelumab or placebo.[11] Neither the participants nor the investigators knew which treatment was given.[11] The benefit of tezepelumab was assessed by measuring the frequency of asthma attacks (exacerbations) at the end of both 52 week trials in comparison to placebo.[11]
The FDA approved tezepelumab based on evidence from two clinical trials (NAVIGATOR and PATHWAY) of 1334 participants with severe asthma.[11] The safety and efficacy of tezepelumab were evaluated in two clinical trials of participants with severe asthma.[11] The trials were conducted in 24 countries (Argentina, Australia, Austria, Bulgaria, Brazil, Canada, Czech Republic, France, Germany, Hungary, Israel, Japan, Lithuania, Latvia, Russia, Saudi Arabia, Serbia, Slovakia, South Africa, South Korea, Taiwan, Ukraine, United States, and Vietnam).[11]
Society and culture
Legal status
On 21 July 2022, the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) adopted a positive opinion, recommending the granting of a marketing authorization for the medicinal product Tezspire, intended as add-on treatment in adults and adolescents with severe asthma.[7][14] The applicant for this medicinal product is AstraZeneca AB.[14] Tezepelumab was approved for medical use in the European Union in September 2022.[7][15]
Research
It is being studied for the treatment of chronic obstructive pulmonary disease, chronic rhinosinusitis with nasal polyps, chronic spontaneous urticaria and eosinophilic esophagitis (EoE).[6]
In phase III trials, tezepelumab demonstrated efficacy compared to placebo for patients with severe, uncontrolled asthma.[16][17]
Structural studies by X-ray crystallography showed that tezepelumab competes against a critical part of the TSLPR binding site on TSLP.[1]
^ abcdefgh"Tezspire EPAR". European Medicines Agency. 19 July 2022. Archived from the original on 22 September 2022. Retrieved 21 September 2022. Text was copied from this source which is copyright European Medicines Agency. Reproduction is authorized provided the source is acknowledged.
^Marone G, Spadaro G, Braile M, Poto R, Criscuolo G, Pahima H, et al. (November 2019). "Tezepelumab: a novel biological therapy for the treatment of severe uncontrolled asthma". Expert Opinion on Investigational Drugs. 28 (11): 931–940. doi:10.1080/13543784.2019.1672657. PMID31549891. S2CID202746054.
^ ab"Tezspire: Pending EC decision". European Medicines Agency. 21 July 2022. Archived from the original on 28 July 2022. Retrieved 30 July 2022. Text was copied from this source which is copyright European Medicines Agency. Reproduction is authorized provided the source is acknowledged.
^"Tezspire Product information". Union Register of medicinal products. 12 December 2022. Archived from the original on 27 October 2022. Retrieved 3 March 2023.
^"Studies found for: Tezepelumab". ClinicalTrials.Gov. National Library of Medicine, National Institutes of Health, U.S. Department of Health and Human Services. Archived from the original on 30 July 2022. Retrieved 14 March 2020.
Clinical trial number NCT02054130 for "Study to Evaluate the Efficacy and Safety of MEDI9929 (AMG 157) in Adult Subjects With Inadequately Controlled, Severe Asthma" at ClinicalTrials.gov
Clinical trial number NCT03347279 for "Study to Evaluate Tezepelumab in Adults & Adolescents With Severe Uncontrolled Asthma (NAVIGATOR)" at ClinicalTrials.gov