Study: NCT01951716

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Graded Glucose Infusion with Placebo
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.~Starting at 0 minutes, a primed-continuous intravenous infusion of saline containing 1% human albumin will continue for 240 minutes.~The study is finished at 240 minutes.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Graded Glucose Infusion with Placebo
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.~Starting at 0 minutes, a primed-continuous intravenous infusion of saline containing 1% human albumin will continue for 240 minutes.~The study is finished at 240 minutes.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Graded Glucose Infusion with GIP Alone
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.~Starting at 0 minutes, a primed-continuous intravenous infusion of GIP in saline containing 1% human albumin will continue for 240 minutes.~The study is finished at 240 minutes.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Graded Glucose Infusion with GIP Alone
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.~Starting at 0 minutes, a primed-continuous intravenous infusion of GIP in saline containing 1% human albumin will continue for 240 minutes.~The study is finished at 240 minutes.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Graded Glucose Infusion with xenin-25 alone
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.~Starting at 0 minutes, a primed-continuous intravenous infusion of xenin-25 in saline containing 1% human albumin will continue for 240 minutes.~The study is finished at 240 minutes.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Graded Glucose Infusion with xenin-25 alone
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.~Starting at 0 minutes, a primed-continuous intravenous infusion of xenin-25 in saline containing 1% human albumin will continue for 240 minutes.~The study is finished at 240 minutes.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Graded Glucose Infusion with GIP plus xenin-25
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.~Starting at 0 minutes, a primed-continuous intravenous infusion of GIP plus xenin-25 in saline containing 1% human albumin will continue for 240 minutes.~The study is finished at 240 minutes.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Graded Glucose Infusion with GIP plus xenin-25
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.~Starting at 0 minutes, a primed-continuous intravenous infusion of GIP plus xenin-25 in saline containing 1% human albumin will continue for 240 minutes.~The study is finished at 240 minutes.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Meal Tolerance Test with Placebo
Description: At 0 minutes, a liquid mixed meal (Boost Plus) plus acetaminophen will be ingested.~Starting at 0 minutes, a primed-continuous intravenous infusion of saline containing 1% human albumin will continue for 300 minutes.~The study is finished at 300 minutes.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Meal Tolerance Test with Placebo
Description: At 0 minutes, a liquid mixed meal (Boost Plus) plus acetaminophen will be ingested.~Starting at 0 minutes, a primed-continuous intravenous infusion of saline containing 1% human albumin will continue for 300 minutes.~The study is finished at 300 minutes.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Meal Tolerance Test with xenin-25
Description: At 0 minutes, a liquid mixed meal (Boost Plus) plus acetaminophen will be ingested.~Starting at 0 minutes, a primed-continuous intravenous infusion of xenin-25 in saline containing 1% human albumin will continue for 300 minutes.~The study is finished at 300 minutes.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Meal Tolerance Test with xenin-25
Description: At 0 minutes, a liquid mixed meal (Boost Plus) plus acetaminophen will be ingested.~Starting at 0 minutes, a primed-continuous intravenous infusion of xenin-25 in saline containing 1% human albumin will continue for 300 minutes.~The study is finished at 300 minutes.