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Updated: May 21, 2026

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Spontaneous Murine Model of Anaplastic Thyroid Cancer
Published on: February 3, 2023
Vandetanib: in medullary thyroid cancer
1Adis, Auckland, New Zealand. demail@springer.com
Drugs
|June 22, 2012
Summary
Vandetanib significantly improved progression-free survival in patients with medullary thyroid cancer. This targeted therapy showed clinical benefits and was generally well-tolerated, with manageable side effects.
Area of Science:
- Oncology
- Pharmacology
Background:
- Medullary thyroid cancer (MTC) is a rare endocrine malignancy.
- Treatment options for advanced or metastatic MTC are limited.
- Targeted therapies offer a promising approach for MTC management.
Purpose of the Study:
- To evaluate the efficacy and safety of vandetanib in patients with unresectable, locally advanced or metastatic medullary thyroid cancer.
- To compare vandetanib with placebo in a large, randomized, double-blind, multinational trial (ZETA).
Main Methods:
- The ZETA trial enrolled 331 patients with medullary thyroid cancer.
- Patients received either vandetanib (300 mg daily) or placebo.
- Progression-free survival (PFS) was the primary endpoint, with secondary endpoints including objective response rate and time to pain worsening.
Main Results:
- Vandetanib demonstrated a statistically significant improvement in PFS compared to placebo over a median follow-up of 2 years.
- Secondary endpoints, including objective response rate and disease control rate, also favored vandetanib.
- Vandetanib showed benefits irrespective of RET mutation status in sporadic MTC patients.
Conclusions:
- Vandetanib provides significant clinical benefits for patients with advanced medullary thyroid cancer.
- The drug was generally well-tolerated, with manageable adverse events.
- QT interval prolongation is a key safety consideration for vandetanib therapy.
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