Analysis of the evolution of the price of oncology drugs after the loss of their patent and the marketing of generic medicines

Authors

DOI:

https://doi.org/10.33393/grhta.2022.2366

Keywords:

Generic medicines, Lenalidomide, Oncology drugs

Abstract

Background and research question: Loss of exclusivity of oncology drugs causes an important drop in their price due to the marketing of generic medicines. In this article we study how the price of certain oncology drugs evolves throughout time after the loss of their patent, both in terms of the notified price and at a level of the public tenders for the purchase of medicines.

Methods: The variation in the price of oral oncology drugs was assessed from the public information provided by the Interministerial Medicinal Products Pricing Committee (Comisión Interministerial de Precios de los Medicamentos, CIPM) and the data from public tenders for the purchase of medicines.

Results: The data show a significant drop in price of the medicines assessed after the expiry of their patent, both at a notified price level (70% of average drop in price in 2.6 years) and at the level of the public tenders (drops exceeding 90% in a year for the most innovative drugs).

Discussion: The drop in the price of the oncology drugs after the expiry of their patent is seen in all the medicines assessed. The trends seen allow to predict the evolution of the price of another innovative medicine that is nearing the expiry of its patent (Lenalidomide), with an expected drop in price by 90% with respect to the current price of the innovative drug.

References

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(Accessed January 2022).

AESEG. Ventajas de los Medicamentos Genéricos. Online: https://www.aeseg.es/es/ventajas-medicamentos-genericos (Accessed January 2022).

Cheung WY, Kornelsen EA, Mittmann N, et al. The economic impact of the transition from branded to generic oncology drugs. Curr Oncol. 2019;26(2):89-93. https://doi.org/10.3747/co.26.4395 PMID:31043808 DOI: https://doi.org/10.3747/co.26.4395

Bristol-Myers settles Revlimid patent suit with India’s Cipla. S&P Global Market Intelligence. Online: https://www.spglobal.com/marketintelligence/en/news-insights/latest-news-headlines/bristol-myers-settles-revlimid-patent-suit-with-india-s-cipla-61706336

Additional Files

Published

2022-05-13

How to Cite

1.
Martínez-Sesmero JM, Smith B, Madurga J. Analysis of the evolution of the price of oncology drugs after the loss of their patent and the marketing of generic medicines. Grhta [Internet]. 2022 May 13 [cited 2022 Sep. 26];9(1):68-72. Available from: https://journals.aboutscience.eu/index.php/grhta/article/view/2366

Issue

Section

Original Research Articles