Table 2.
A timeline of study visits and the outcome tests performed at each visit. Safety bloods include renal function (urea, creatinine, and electrolytes), liver function (aspartate transaminase, alanine transferase, bilirubin, albumin, alkaline phosphatase, gamma-glutamyl transferase), thyroid function (thyroid stimulating hormone free thyroxine), and creatine kinase.
| Outcome | Measure | Weeks | ||||||||||
| 0 | 1 | 2 | 3 | 4 | 6 | 8 | 10 | 12 | 16 | |||
| Primary outcome | ||||||||||||
| ICP | Lumbar puncture | X | X | |||||||||
| Secondary outcomes | ||||||||||||
| Anthropometric measures | Body mass index, blood pressure, waist/hip, body composition | X | X | X | ||||||||
| IIH symptoms | Pulsatile tinnitus, visual loss, diplopia, visual obscurations | X | X | X | ||||||||
| Visual function | Visual acuity, contrast sensitivity | X | X | X | ||||||||
| Humphrey visual field (24-2) | X | X | X | |||||||||
| Papilledema | Optical coherence tomography | X | X | X | ||||||||
| Retinal photographs | X | X | X | |||||||||
| Headache | HIT-6, headache index, analgesia use | X | X | X | ||||||||
| Medical assessment | History, +/- examination, compliance | X | X | X | X | X | X | X | X | X | X | |
| Safety bloods | X | X | X | X | X | X | ||||||
| Pregnancy test | X | X | X | X | X | X | ||||||
| Exploratory outcomes | ||||||||||||
| Global 11β-HSD1 activity | 24-hour urine | X | X | X | X | X | X | |||||
| Hepatic 11β-HSD1 activity | Prednisone to prednisolone measurements in serum | X | X | |||||||||
| Adipose 11β-HSD1 activity | Subcutaneous adipose biopsy | X | X | |||||||||
| Body habitus | DXA | X | X | |||||||||
| Pharmacokinetic analysis | Plasma and CSF | X | X | X | ||||||||