Safety and Efficacy Study of Recombinant Human Growth Hormone in Adult Growth Hormone Deficiency Patients

Inclusion Criteria: * GHDA subjects, males and females, of age between 23 and 60 years as defined in the Consensus Guidelines for the Diagnosis and Treatment of Adults with GH Deficiency II (2007) as well as American Association of Clinical Endocrinologists Medical Guidelines for Clinical Practice for Growth Hormone Use in Growth Hormone-Deficient Adults and Transition Patients (2009); * r-hGHdrug naïve or any registered or investigational r-hGH replacement therapy was not given for more than 6 months before the screening. * Body Mass Index (BMI, kg/m2) of both male and female patients must be between 22.0 to 35.0 kg/m2. * Female patients must have a negative serum pregnancy test at inclusion. * Confirmed to be negative for anti r-hGH antibodies at the time of screening. * Willing and able to provide written informed consent prior to performing any study procedures. Exclusion Criteria: * Patients with childhood onset of GHD treated with r-hGH before the age of 18. * Current antitumor therapy. * Subjects presenting with any clinically significant ECG abnormality. * Evidence of intracranial hypertension. * Significant hepatic dysfunction (persistent elevation of alanine transaminase \[ALT\] or aspartate transaminase \[AST\] \>1.5 x upper limit of normal). * Pregnancy and breastfeeding;