Patterns of Treatment and Real‐World Outcomes of Patients With Non‐small Cell Lung Cancer With EGFR Exon 20 Insertion Mutations Receiving Mobocertinib: The EXTRACT Study
ABSTRACT
Background
Real‐world data regarding patients with non‐small cell lung cancer (NSCLC) with EGFR exon 20 insertion (ex20ins) mutations receiving mobocertinib are limited. This study describes these patients' characteristics and outcomes.
Methods
A chart review was conducted across three countries (Canada, France, and Hong Kong), abstracting data from eligible patients (NCT05207423). The inclusion criteria were: ≥ 18 years old; diagnosis of stage IIIB‐IV NSCLC with EGFR ex20ins between January 1, 2017 and November 30, 2021; received mobocertinib. Data on demographics, clinical parameters, treatment patterns, mobocertinib exposure, real‐world outcomes, and adverse events (AEs) were collected. Results are also reported by Asian/Non‐Asian races.
Results
Overall, 105 patients were enrolled (median [IQR] age at initial diagnosis: 64.0 years [56, 71]; women: 62.9%). The most common first‐line of therapy (LoT) was chemotherapy; the most common second LoT was EGFR tyrosine kinase inhibitors. Most patients received mobocertinib during LoT two and three (74.3%); the maximum dose was 160 mg/day for 67.6% of the cohort (mean [SD] daily dose: 130.6 mg [36.68]). The median real‐world progression‐free survival (PFS) on mobocertinib was 4.76 months (95% CI: 3.98, 6.21). The overall response rate and disease control rate were 20.0% and 48.6%, respectively (median duration of response: 8.34 months [95% CI: 3.61, 9.49]). The median overall survival (OS) was 26.28 months (95% CI: 20.21, 36.44). Asian patients had numerically superior PFS and OS compared with non‐Asian patients. Regarding safety analysis, 73 patients (69.5%) experienced any AE. The most common AE was diarrhea (any grade) (52 patients; 49.5%).
Conclusions
These data illustrate the real‐world effectiveness of mobocertinib.
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Current Oncology
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