MRCP2-1139

A 45-year-old male presents with a six month history of fatigue, weight gain, and difficulty concentrating. He had surgery two years ago for a non-functional pituitary tumor and has been on replacement therapy with hydrocortisone, thyroxine, and testosterone. His lab results show low TSH and IGF-1 levels, but normal testosterone and free T4 levels. What treatment option would be most effective in improving this patient’s symptoms?