Real-world analysis of the use of lenvatinib in differentiated thyroid cancers

30 Jan 2023
Zoya Peelay, Deevyashali Parekh, Vijay M Patil, Vanita Noronha, Nandini Menon, Kumar Prabhash

Introduction: Lenvatinib is one of the approved treatments for radioiodine-refractory differentiated thyroid cancers. However, there is very limited data from India on real-world efficacy and adverse events of Lenvatinib and hence this analysis was performed.

Methods: This was a retrospective analysis in which patients of radioiodine-refractory differentiated thyroid cancer as per the SELECT study criteria, who received lenvatinib, were selected for the study over the last 4 years. The baseline demographic characteristics, adverse events of lenvatinib, the date of progression and the date of overall survival (OS) were extracted from the electronic medical records of Tata Memorial Hospital. SPSS version 20 was used for analysis.

Results: The median starting dose of lenvatinib was 20 mg. Fifteen events for progression had occurred and the median progression-free survival (PFS) was 12.2 months [95% CI: 4.4–not available (NA)]. The events for OS analysis were 12. The median OS was 35.3 months (95% CI: 11.4–NA). There was no impact on starting dose on PFS or OS.

Conclusion: The real-world data of Lenvatinib suggest a lot of variability in the starting dose. In spite of this variability, the response rates and OS are similar to that noted in pivotal study. This suggests a case for need for more studies evaluating lower doses of Lenvatinib.

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