A 14-year-old male with a Body Mass Index at the 99th percentile is being managed for obesity and its comorbidities. Despite 12 months of intensive lifestyle modification, his Body Mass Index continues to increase, and his type 2 diabetes is worsening. His physician is considering pharmacotherapy. Which medication works by acting as a glucagon-like peptide-1 (GLP-1) receptor agonist and is approved for weight management in adolescents aged 12 and older?