Thyroid-stimulating hormone suppression therapy for differentiated thyroid cancer: The role for a combined T3/T4 approach

Abstract

Background

In the management of differentiated thyroid carcinoma, surgery with or without postoperative radioiodine, and thyroid-stimulating hormone (TSH) suppression is the standard of care in most patients. Levothyroxine is recommended for long-term TSH suppression. For some patients, this may be difficult to tolerate due to adverse effects, such as impaired cognitive function.

Methods

This article reviews the evidence for the role of combination treatment with triiodothyronine (T3) and levothyroxine (T4) in these patients.

Results

The evidence for combination T3 and T4 treatment comes mainly from studies on hypothyroidism, and research into its use for TSH suppression is limited.

Conclusion

Although the evidence base is not strong, there is a small group of patients who may benefit from combination T3 and T4 treatment due to difficulty tolerating thyroxine. Until further evidence is available, a case-by-case approach is recommended.

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