Study: NCT01951729

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Control
Description: Starting at 0 minutes, glucose infusion rates will be increased to 1, 2, 3, 4, 6, and 8 mg/kg/min every 40 minutes. The study is finished at 240 minutes.~Starting at 0 minutes, an intravenous infusion of saline containing 1% human albumin will continue for 240 minutes.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Xenin-25 without atropine
Description: Starting at 0 minutes, glucose infusion rates will be increased to 1, 2, 3, 4, 6, and 8 mg/kg/min every 40 minutes. The study is finished at 240 minutes.~Following a priming dose from 0-10 minutes, xenin-25 (in saline containing 1% human albumin) will be administered at a constant dose of 4 pmoles/kg/min until 240 minutes.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: GIP without atropine
Description: Starting at 0 minutes, glucose infusion rates will be increased to 1, 2, 3, 4, 6, and 8 mg/kg/min every 40 minutes. The study is finished at 240 minutes.~Following a priming dose from 0-10 minutes, GIP (in saline containing 1% human albumin) will be administered at a dose of 4 pmoles/kg/min until 240 minutes.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Placebo with atropine
Description: Starting at 0 minutes, glucose infusion rates will be increased to 1, 2, 3, 4, 6, and 8 mg/kg/min every 40 minutes. The study is finished at 240 minutes.~Following a priming dose from -30 to -28 minutes, atropine will be administered at a constant dose of 0.3 mg/m2/hour until 240 minutes.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Xenin-25 with atropine
Description: Starting at 0 minutes, glucose infusion rates will be increased to 1, 2, 3, 4, 6, and 8 mg/kg/min every 40 minutes. The study is finished at 240 minutes.~Following a priming dose from 0-10 minutes, xenin-25 (in saline containing 1% human albumin) will be administered at a dose of 4 pmoles/kg/min until 240 minutes.~Following a priming dose from -30 to -28 minutes, atropine will be administered at a constant dose of 0.3 mg/m2/hour until 240 minutes.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: GIP with atropine
Description: Starting at 0 minutes, glucose infusion rates will be increased to 1, 2, 3, 4, 6, and 8 mg/kg/min every 40 minutes. The study is finished at 240 minutes.~Following a priming dose from 0-10 minutes, GIP (iin saline containing 1% human albumin) will be administered at a dose of 4 pmoles/kg/min until 240 minutes.~Following a priming dose from -30 to -28 minutes, atropine will be administered at a constant dose of 0.3 mg/m2/hour until 240 minutes.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: GIP plus Xenin-25 without atropine
Description: Starting at 0 minutes, glucose infusion rates will be increased to 1, 2, 3, 4, 6, and 8 mg/kg/min every 40 minutes. The study is finished at 240 minutes.~Following a priming dose from 0-10 minutes, GIP and xenin-25 will each be administered at a dose of 4 pmoles/kg/min until 240 minutes.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: GIP plus Xenin-25 with atropine
Description: Starting at 0 minutes, glucose infusion rates will be increased to 1, 2, 3, 4, 6, and 8 mg/kg/min every 40 minutes. The study is finished at 240 minutes.~Following a priming dose from 0-10 minutes, GIP and xenin-25 will each be administered at a dose of 4 pmoles/kg/min until 240 minutes.~Following a priming dose from -30 to -28 minutes, atropine will be administered at a constant dose of 0.3 mg/m2/hour until 240 minutes.