Optimum Recombinant Human Thyrotropin Dose in Patients with Differentiated Thyroid Carcinoma and End-Stage Renal Disease

2008 
Objective: To evaluate serum thyrotropin (TSH) concentrations after conventional (0.9 mg) or half-dose (0.45 mg) administration of recombinant human TSH (rhTSH) injections intramuscularly in patients with end-stage renal disease and differentiated thyroid cancer.Methods: In this case series, we administered 2 doses of 0.9-mg rhTSH or 2 doses of 0.45-mg rhTSH to 3 patients with renal failure and differentiated thyroid cancer who were receiving hemodialysis. Basal serum TSH concentrations were assessed while the patients were taking thyroid hormone therapy. Serum TSH was measured on days 2, 3, 5, 8, 10, 14, and 17 of the study. Thyroglobulin and thyroglobulin antibodies were also measured on days 5 and 7. Patients were asked to report any adverse effects.Results: Patient 1, who received 2 injections of 0.9-mg rhTSH administered on days 1 and 3, had persistently elevated serum TSH levels for approximately 11 days. Peak serum TSH measured on day 5 was 644 mIU/L. Self-limited diarrhea was the only reported adv...
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