Objective： To observe the difference between Thyogen® injection or Eltroxin® withdrawal on metabolic profile.~Background and method:： The prevalence of thyroid cancer has increased in recent decades. Patients with thyroid cancer need to choose between Thyrogen® injection and Eltroxin® withdrawal before radioiodine therapy or scan. This is a prospective, observational study, aiming to observe the difference of metabolic profiles between patients choose Thyrogen® injection and Eltroxin® withdrawal.~Inclusion ： Patient number: 500人~Inclusion criteria :~Patients with diagnosis of thyroid cancer。~Patients who need radioiodine therapy or scan。~Exclusion criteria:~Patients cannot cooperate with blood test.。~Patients cannot cooperate with radioiodine therapy。 Study design： Prospective, observational study。~Method： We will collect 20cc blood and 20 cc urine before and after radioiodine therapy during each visit (total 3 visits) and check lipid profiles, glucose profiles and inflammation markers. We will compare the difference between results of patients undergoing Thyrogen® injection and Eltroxin® withdrawal.
The prevalence of thyroid cancer has increased in recent decades. Patients with thyroid cancer need to choose between Thyrogen® injection and Eltroxin® withdrawal before radioiodine therapy or scan. This is a prospective, observational study, aiming to observe the difference of metabolic profiles between patients choose Thyrogen® injection and Eltroxin® withdrawal.