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Emerging Therapies for Radioactive Iodine Refractory Thyroid Cancer
1Department of Oncology, H. Lee Moffitt Cancer Center and Research Institute, 12902 Magnolia Drive, Tampa, FL, 33612, USA. kedar.kirtane@moffitt.org.
Opinion Statement:
The landscape of treatment options for radioactive iodine refractory thyroid cancer is rapidly changing. While there are no curative options in this setting, tyrosine kinase inhibitors (TKIs) have revolutionized the management of radioiodine refractory disease to help delay progression of metastatic and life-threatening disease. Ongoing development of more selective targeted inhibitors will certainly improve medication tolerability and tumor specificity. In this review, we discuss the epidemiology of radioactive iodine refractory thyroid cancer and examine the definition of radioactive iodine refractory disease and the current systemic therapy options. We then discuss molecularly targeted strategies both approved by the FDA and currently under study in clinical trials. In particular, we examine the data relevant to specific targeted mutations in thyroid cancer. We also discuss novel approaches in development, such as immunotherapy, to the management of radioactive iodine refractory disease.
Insights
Treatment for radioactive iodine-refractory thyroid cancer is evolving. Tyrosine kinase inhibitors (TKIs) now delay disease progression, with new targeted therapies and immunotherapies under development for better outcomes.
Area of Science:
- Oncology
- Molecular Biology
- Pharmacology
Background:
- Radioactive iodine refractory thyroid cancer presents a significant clinical challenge with limited curative options.
- Tyrosine kinase inhibitors (TKIs) have emerged as a key therapeutic advancement, improving outcomes for patients with metastatic disease.
Purpose of the Study:
- To review the current epidemiology and definition of radioactive iodine refractory thyroid cancer.
- To examine existing and emerging systemic therapy options, focusing on molecularly targeted strategies.
- To discuss novel therapeutic approaches, including immunotherapy, for managing this condition.
Main Methods:
- Literature review of epidemiological data and clinical trial outcomes.
- Analysis of FDA-approved and investigational targeted therapies for thyroid cancer.
- Examination of molecular targets and their relevance in treatment selection.
Main Results:
- Tyrosine kinase inhibitors (TKIs) have demonstrated efficacy in delaying progression of metastatic radioactive iodine-refractory thyroid cancer.
- Targeted therapies, guided by specific genetic mutations, show promise for improved tumor specificity and tolerability.
- Immunotherapy represents a novel and developing approach for this patient population.
Conclusions:
- The management of radioactive iodine-refractory thyroid cancer is being transformed by targeted therapies.
- Continued research into novel inhibitors and immunotherapies is crucial for improving patient survival and quality of life.
- Personalized treatment strategies based on molecular profiling are essential for optimizing care.
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