Preventive Transoral Endoscopic Thyroidectomy by Vestibular Approach in 6-Year-Old Patient with the High-Risk RET C634R Germline Mutation.

Aggressiveness and age of manifestation of medullary thyroid cancer depend on the risk level of germline RET mutations. For high-risk mutations, preventive thyroidectomy is recommended at young age. In recent years, endoscopic operations for thyroid cancer were introduced in clinical practice.

Phase 3 Trial of Selpercatinib in Advanced -Mutant Medullary Thyroid Cancer.

Background: Selpercatinib, a highly selective, potent RET inhibitor, has shown efficacy in advanced -mutant medullary thyroid cancer in a phase 1-2 trial, but its efficacy as compared with approved multikinase inhibitors is unclear.

Methods: We conducted a phase 3, randomized trial comparing selpercatinib as first-line therapy with the physician's choice of cabozantinib or vandetanib (control group). Eligible patients had progressive disease documented within 14 months before enrollment.

A Randomized, Double-Blind Noninferiority Study to Evaluate the Efficacy of the Cabozantinib Tablet at 60 mg Per Day Compared with the Cabozantinib Capsule at 140 mg Per Day in Patients with Progressive, Metastatic Medullary Thyroid Cancer.

Cabozantinib inhibits pathways involved in medullary thyroid cancer (MTC). Cabozantinib is approved as 140 mg/day in capsules for MTC and 60 mg/day in tablets for other solid tumors. This study compared the two doses in progressive metastatic MTC.