ESPE Abstracts

Growth hormone (GH) stimulates insulin like growth factor I (IGF I) release. IGF-I is the standard biomarker for monitoring GH effects during treatment and to achieve optimal long-term safety, and to a limited extent, monitor efficacy in children with GH deficiency (GHD). The IGF I profile during treatment with a long acting GH (LAGH), such as once weekly somapacitan (Novo Nordisk), differs from the daily GH profile by exhibiting larger peaks and troughs over the dosing interv...

Somapacitan (Novo Nordisk A/S) is a long-acting GH derivative, approved for once-weekly administration in children and adults with GHD. IGF-I is monitored and includes a fraction bound to binding proteins, e.g., IGF binding protein-3 (IGFBP-3). The IGF-I/IGFBP-3 molar ratio can be used as surrogate marker for freely circulating bioactive IGF-I. REAL4 is a randomised, open-label, multi-national phase 3 trial (NCT03811535) with a 52-week main phase and a 3-year extension (week 5...