1
|
Malapelle U, Ricciuti B, Baglivo S, Pepe F, Pisapia P, Anastasi P, Tazza M, Sidoni A, Liberati AM, Bellezza G, Chiari R, Metro G. Osimertinib. Recent Results Cancer Res 2018; 211:257-276. [PMID: 30069773 DOI: 10.1007/978-3-319-91442-8_18] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Epidermal growth factor receptor (EGFR)-mutated (exons 18-21) advanced non-small cell lung cancers (NSCLCs) are generally characterized by exquisite sensitivity to treatment with an EGFR-tyrosine kinase inhibitor (-TKI). First-generation or reversible EGFR-TKIs include gefitinib and erlotinib, while, more recently, second-generation or irreversible EGFR-TKIs have been developed, namely afatinib and dacomitinib, with the aim of overcoming/delaying acquired resistance to treatment. Nevertheless, clinical trials have shown that resistance eventually emerges after a median time of slightly less than one year, regardless of whether first- or second-generation EGFR-TKIs are used. In this context, a secondary EGFR mutation in exon 20, namely T790M, has been found to be responsible for approximately 60% of cases of acquired resistance. Alternatively, T790M resistance mutation can be found de novo, in which case it limits the antitumor activity of both first- or second-generation EGFR-TKIs. Osimertinb is an orally bioavailable, third-generation EGFR-TKI that acts by irreversibly binding both EGFR activating mutations and T790M, while sparing wild-type EGFR. On this basis, osimertinib has proven more efficacious than platinum-based chemotherapy in the setting of EGFR T790M-positive NSCLCs pretreated with a first- or second-generation EGFR-TKI. More recently, in another phase 3 trial, osimertinib outperformed gefitinib or erlotinib as first-line treatment of EGFR-mutated (ex19del or L858R) advanced NSCLCs, thus emerging as a new standard of care in this setting. In the present review, we will discuss the preclinical and clinical development of osimertinib, briefly touching upon its activity in special populations and biomarkers of sensitivity to treatment.
Collapse
Affiliation(s)
- Umberto Malapelle
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Biagio Ricciuti
- Medical Oncology, Santa Maria della Misericordia Hospital, Azienda Ospedaliera di Perugia, via Dottori, 1, 06156, Perugia, Italy
| | - Sara Baglivo
- Medical Oncology, Santa Maria della Misericordia Hospital, Azienda Ospedaliera di Perugia, via Dottori, 1, 06156, Perugia, Italy
| | - Francesco Pepe
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Pasquale Pisapia
- Department of Public Health, University of Naples Federico II, Naples, Italy
| | - Paola Anastasi
- Medical Oncology, Santa Maria della Misericordia Hospital, Azienda Ospedaliera di Perugia, via Dottori, 1, 06156, Perugia, Italy
| | - Marco Tazza
- Medical Oncology, Santa Maria della Misericordia Hospital, Azienda Ospedaliera di Perugia, via Dottori, 1, 06156, Perugia, Italy
| | - Angelo Sidoni
- Section of Anatomic Pathology and Histology, Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Anna M Liberati
- Division of Onco-Hematology, Santa Maria Terni Hospital, University of Perugia, Perugia, Italy
| | - Guido Bellezza
- Section of Anatomic Pathology and Histology, Department of Experimental Medicine, University of Perugia, Perugia, Italy
| | - Rita Chiari
- Medical Oncology, Santa Maria della Misericordia Hospital, Azienda Ospedaliera di Perugia, via Dottori, 1, 06156, Perugia, Italy
| | - Giulio Metro
- Medical Oncology, Santa Maria della Misericordia Hospital, Azienda Ospedaliera di Perugia, via Dottori, 1, 06156, Perugia, Italy.
| |
Collapse
|