Recovery Rate in Secondary Hypothyroidism
Rate of Recovery of Secondary Hypothyroidism in Patients With Pituitary Disorders.
About This Trial
The aim of this project is to assess the rate of recovery of secondary hypothyroidism in patients with pituitary disorders.
Who May Be Eligible (Plain English)
Original Eligibility Criteria
View original clinical language
Treatments Being Tested
Levothyroxine
Step 1: * Reduce the dose of T4 therapy by 50% and recheck serum T4 after 2 weeks. * If serum T4 is normal, go to step 2. * If serum T4 drops to below normal then resume full T4 replacement (these patients will be considered as having withdrawal failure). Step 2: * Discontinue T4 therapy altogether and recheck serum TSH and T4 after 2 weeks. * If serum T4 is normal, go to step 3. * If serum T4 drops to below normal then resume full T4 replacement (these patients will be considered as having withdrawal failure). Step 3: * Recheck serum TSH and T4 after 8 weeks. * If serum TSH and T4 levels are normal, these patients will be regarded as having successful T4 withdrawal. * If T4 drops to below normal then resume full T4 replacement (these patients will be considered as having withdrawal failure).