Inclusion Criteria:  Girls must be between the ages of 2 and 11 years, and boys must be between the ages of 2 and 13 years Have established diagnosis of pediatric growth hormone deficiency (GHD). For the purposes of the study, GHD is defined as peak growth hormone response to clonidine/arginine stimulation testing of <10 ng/mL Either treatment-naive or currently treated with a daily growth hormone as approved by health insurance  Exclusion Criteria:  Any medical condition which, in the opinion of the Investigator, can be an independent cause of short stature and/or limit the response to exogenous growth factor treatment Current treatment with long-acting growth hormone Currently pregnant or breastfeeding