Clinical Study Indicates towards Progressive State of Selpercatinib against Medullary Thyroid Cancer

Release Date: 20-Nov-2020

As per the clinical outcomes associated with Selpercatinib treatment of RET-altered thyroid cancer, the drug is linked with tolerable safety profile and high response and progression-free survival (PFS) rates. The research with respect to the clinical study has shown that 70% of the patients suffering from medullary thyroid cancers have RET alterations. The primary aim of the researchers involved in the clinical research study was to evaluate RET-specific inhibitor among patients with RET-altered thyroid cancer.


The clinical research study conducted by the researchers was a multicenter, open-label, phase andfrac12; LIBRETTO-001 trial which included 162 patients suffering from advanced or metastatic RET-altered thyroid cancer. Some of the aims of the clinical research study was to identify objective response rate (ORR) by independent review and secondary endpoints included progression-free survival (PFS), duration of response (DOR), and safety.


The observed response rate with respect to the drug was high among all the groups that were made regardless of the alterations present. The objective response rate among the patients having RET mutation when treated with selpercatinib came out to be 69%. Duration of response treatment-naive RET-mutant group came out to be 22 months and 18.4 months in the RET fusion group. The progression free survival observed for naive RET-mutant group was 23.6 and previously treated RET fusion group was 20.1. Some minute cases of side effects were observed in the enrolled patients. According to the researchers involved in the study, their investigational drug showed marked and durable response with respect to anti-cancer activity in the patients, leading towards a study outcome that was promising and well perceived to take it further for approval.

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