AJCC Stage III or greater
Undifferentiated, Anaplastic or Medullary Thyroid Cancer
Planned postoperative TSH goal other than 0.1-0.5 mU/L
History of gastrointestinal malabsorption or gastric bypass surgery
Pregnancy
Use of medications that alter the absorption or metabolism of levothyroxine
Prior use of levothyroxine

NCT02946918_exc_T1
Measurement
AJCC
NCT02946918_exc_T2
Value
Stage III or greater
NCT02946918_exc_T3
Condition
Medullary Thyroid Cancer
NCT02946918_exc_T4
Condition
naplastic hyroid Cancer
NCT02946918_exc_T5
Condition
ndifferentiated, hyroid Cancer
NCT02946918_exc_T6
Measurement
TSH
NCT02946918_exc_T7
Qualifier
postoperative
NCT02946918_exc_T8
Value
0.1-0.5 mU/L
NCT02946918_exc_T9
Negation
other than
NCT02946918_exc_T10
Condition
gastrointestinal malabsorption
NCT02946918_exc_T11
Procedure
gastric bypass surgery
NCT02946918_exc_T13
Drug
medications
NCT02946918_exc_T14
Observation
metabolism of levothyroxine
NCT02946918_exc_T15
Drug
levothyroxine
NCT02946918_exc_T16
Drug
levothyroxine
NCT02946918_exc_T17
Temporal
Prior
NCT02946918_exc_T18
Observation
ption or m vothyroxine
Prio
NCT02946918_exc_T19
Scope
absorption or metabolism of levothyroxine
NCT02946918_exc_T20
Negation
alter