Thyroid antibodies levels and thyroid function tests
| Tests | Before teprotumumab therapy | After teprotumumab therapy | After plasmapheresis |
| TSI (0.00–0.55 IU/L) | 1.04 | 1.06 | 0.35 |
| TgAb (0–0.9 IU/mL) | <1.0 | 18.4 | <1.0 |
| TPO (0–34 IU/mL) | <6 | 14 | <9 |
| TRAb (<1.0 U/L) | 1.6 | 1.2 | <1.10 |
| TSH (0.27–4.2 µIU/mL) | 0.311 | 1.64 | 1.01 |
| FT4 (0.93–1.7 ng/dL) | 1.52 | 1.61 | 1.41 |
| Total T3 (80–200 ng/dL) | 104.7 | 93.7 | 86.1 |
FT4, free thyroxine; T3, triiodothyronine; TgAb, thyroglobulin antibody; TPO, thyroperoxidase antibody; TRAb, thyrotropin receptor antibody; TSH, thyrotropin; TSI, thyroid stimulating immunoglobulin.