['diabetes mellitus, type 1']
['glucagon']

        Inclusion Criteria:

          -  diagnosed with T1D for at least 6 months at Screening.

          -  current usage of daily insulin treatment.

        Exclusion Criteria:

          -  pregnant or nursing

          -  renal insufficiency

          -  hepatic synthetic insufficiency

          -  aspartate or alanine aminotransferase > 3 times the upper limit of normal

          -  hematocrit less than or equal to 30%

          -  use of > 2.0 U/kg total insulin dose per day

          -  inadequate venous access

          -  current seizure disorder

          -  history of pheochromocytoma or disorder with increased risk of pheochromocytoma

          -  history of insulinoma

          -  history of glycogen storage disease.

          -  active use of alcohol or drugs of abuse

          -  administration of glucagon within 14 days of the first treatment visit

          -  participation in other studies involving an investigational drug or device within 30
             days
      