Chemistry:Tezepelumab

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Short description: Monoclonal antibody
Tezepelumab
Structural basis for inhibition of TSLP-signaling by Tezepelumab.png
Structural basis for inhibition of TSLP-signaling by Tezepelumab (PDB 5J13)[1]
Monoclonal antibody
TypeWhole antibody
SourceHuman
Targetthymic stromal lymphopoietin (TSLP)
Clinical data
Trade namesTezspire
Other namesMEDI9929, AMG 157, tezepelumab-ekko
AHFS/Drugs.comMonograph
MedlinePlusa622010
License data
Routes of
administration		Subcutaneous
ATC code
Legal status
Legal status
Identifiers
CAS Number
DrugBank
ChemSpider
  • None
UNII
KEGG
Chemical and physical data
FormulaC6400H9844N1732O1992S52
Molar mass144590.40 g·mol−1

Tezepelumab, sold under the brand name Tezspire, is a human monoclonal antibody used for the treatment of asthma.[4][6][7][8] Tezepelumab blocks thymic stromal lymphopoietin (TSLP),[4] an epithelial cytokine that has been suggested to be critical in the initiation and persistence of airway inflammation.[9]

The most common side effects include arthralgia (joint pain) and pharyngitis (sore throat).[6]

Tezepelumab was approved for medical use in the United States in December 2021,[4][10][5] and in the European Union in September 2022.[6][11] The US Food and Drug Administration (FDA) considers it to be a first-in-class medication.[12]

Medical uses

Tezepelumab is indicated for the add-on maintenance treatment of people aged twelve years and older with severe asthma.[4][6]

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.[6]

The benefits and side effects of tezepelumab were evaluated in two clinical trials of participants with severe asthma.[10] All participants were taking their usual treatment for asthma.[10] In addition, participants received new treatment with either tezepelumab or placebo.[10] Neither the participants nor the investigators knew which treatment was given.[10] 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.[10]

The FDA approved tezepelumab based on evidence from two clinical trials (NAVIGATOR and PATHWAY) of 1334 participants with severe asthma.[10] The safety and efficacy of tezepelumab were evaluated in two clinical trials of participants with severe asthma.[10] 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).[10]

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.[6][13] The applicant for this medicinal product is AstraZeneca AB.[13] Tezepelumab was approved for medical use in the European Union in September 2022.[6][14]

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).[5]

In phase III trials, tezepelumab demonstrated efficacy compared to placebo for patients with severe, uncontrolled asthma.[15][16]

Structural studies by X-ray crystallography showed that tezepelumab competes against a critical part of the TSLPR binding site on TSLP.[1]

References

  1. ↑ 1.0 1.1 "Structure and antagonism of the receptor complex mediated by human TSLP in allergy and asthma". Nature Communications 8 (1): 14937. April 2017. doi:10.1038/ncomms14937. PMID 28368013. Bibcode: 2017NatCo...814937V. 
  2. ↑ "Tezspire Product information". 25 April 2012. https://health-products.canada.ca/dpd-bdpp/info.do?lang=en&code=101878. 
  3. ↑ "Summary Basis of Decision - Tezspire". 23 October 2014. https://hpr-rps.hres.ca/reg-content/summary-basis-decision-detailTwo.php?linkID=SBD00613&lang=en. 
  4. ↑ 4.0 4.1 4.2 4.3 4.4 "Tezspire- tezepelumab-ekko injection, solution". https://dailymed.nlm.nih.gov/dailymed/drugInfo.cfm?setid=60f0aa03-ad25-4d48-80ce-7fcfa76f325f. 
  5. ↑ 5.0 5.1 5.2 "Tezspire (tezepelumab) approved in the US for severe asthma". AstraZeneca (Press release). 17 December 2021. Archived from the original on 18 December 2021. Retrieved 17 December 2021.
  6. ↑ 6.0 6.1 6.2 6.3 6.4 6.5 6.6 6.7 "Tezspire EPAR". 19 July 2022. https://www.ema.europa.eu/en/medicines/human/EPAR/tezspire.  Text was copied from this source which is copyright European Medicines Agency. Reproduction is authorized provided the source is acknowledged.
  7. ↑ "Tezepelumab: a novel biological therapy for the treatment of severe uncontrolled asthma". Expert Opinion on Investigational Drugs 28 (11): 931–940. November 2019. doi:10.1080/13543784.2019.1672657. PMID 31549891. 
  8. ↑ "TSLP Inhibitors for Asthma: Current Status and Future Prospects". Drugs 80 (5): 449–458. February 2020. doi:10.1007/s40265-020-01273-4. PMID 32078149. 
  9. ↑ "Tezepelumab granted Breakthrough Therapy Designation by US FDA". AstraZeneca (Press release). 7 September 2018. Archived from the original on 10 September 2018. Retrieved 10 September 2018.
  10. ↑ 10.0 10.1 10.2 10.3 10.4 10.5 10.6 10.7 10.8 "Drug Trials Snapshots: Tezspire". 17 December 2021. https://www.fda.gov/drugs/drug-approvals-and-databases/drug-trials-snapshots-tezspire.  This article incorporates text from this source, which is in the public domain.
  11. ↑ "Tezspire approved in the EU for the treatment of severe asthma" (Press release). AstraZeneca. 21 September 2022. Archived from the original on 22 September 2022. Retrieved 21 September 2022.
  12. ↑ (PDF) Advancing Health Through Innovation: New Drug Therapy Approvals 2021 (Report). 13 May 2022. https://www.fda.gov/media/155227/download. Retrieved 22 January 2023.  This article incorporates text from this source, which is in the public domain.
  13. ↑ 13.0 13.1 "Tezspire: Pending EC decision". 21 July 2022. https://www.ema.europa.eu/en/medicines/human/summaries-opinion/tezspire.  Text was copied from this source which is copyright European Medicines Agency. Reproduction is authorized provided the source is acknowledged.
  14. ↑ "Tezspire Product information". 12 December 2022. https://ec.europa.eu/health/documents/community-register/html/h1677.htm. 
  15. ↑ "Studies found for: Tezepelumab". ClinicalTrials.Gov. National Library of Medicine, National Institutes of Health, U.S. Department of Health and Human Services. https://www.clinicaltrials.gov/ct2/results?cond=&term=Tezepelumab. 
  16. ↑ "Tezepelumab in Adults and Adolescents with Severe, Uncontrolled Asthma". New England Journal of Medicine 384 (19): 1800–09. May 2021. doi:10.1056/NEJMoa2034975. PMID 33979488. 

External links

  • 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



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