Growth Hormone Deficiency, Pediatric

This study aims to evaluate the efficacy and safety of GB06 (a biosimilar of Norditropin®FlexProTM from Novo Nordisk) for the treatment of growth disorders caused by growth hormone deficiency (GHD) in children. It aims to determine whether the annual height velocity (an index of height growth rate) in children diagnosed with GHD after 52 weeks of GB06 intervention is comparable to that of Norditropin®FlexProTM. To achieve this, the participants will administer GB06 or Norditropin®FlexProTM at 0.035mg/kg/day for 52 consecutive weeks.