MedPath

Renin-Angiotensin and Fibrinolysis in Humans: Effect of Long-Term PDE5 Inhibition on Glucose Homeostasis

Phase 4
Terminated
Conditions
Impaired Glucose Tolerance
Interventions
Drug: Placebo
Diagnostic Test: Euglycemic clamp
Diagnostic Test: Hyperglycemic clamp
Registration Number
NCT01409993
Lead Sponsor
Vanderbilt University
Brief Summary

The purpose of this study is to determine the effect of chronic PDE5 inhibitor therapy on glucose metabolism in persons with prediabetes.

Detailed Description

Not available

Recruitment & Eligibility

Status
TERMINATED
Sex
All
Target Recruitment
78
Inclusion Criteria

Not provided

Exclusion Criteria

Not provided

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
placebo Aim 2Euglycemic clampmatching placebo p.o. tid
sildenafil Aim 1Hyperglycemic clampsildenafil 25 mg p.o. tid
placebo Aim 1Placebomatching placebo p.o. tid
sildenafil Aim 2Euglycemic clampsildenafil 25 mg p.o. tid
placebo Aim 2Placebomatching placebo p.o. tid
placebo Aim 1Hyperglycemic clampmatching placebo p.o. tid
sildenafil Aim 2Sildenafilsildenafil 25 mg p.o. tid
sildenafil Aim 1Sildenafilsildenafil 25 mg p.o. tid
Primary Outcome Measures
NameTimeMethod
Index of Tissue Sensitivity to Insulin2.5 hours after 3 months of therapy

in the group of subjects undergoing hyperglycemic clamp (Aim 1), calculated by dividing the average glucose infusion rate during the last hour of the clamp by the average plasma insulin concentration during the same interval

Insulin Secretion2.5 hours after 3 months of therapy

in the group of subjects undergoing hyperglycemic clamp (Aim 1)

Glucose Infusion Rate2.5 hours after 3 months of therapy

In the group of subjects undergoing euglycemic clamp (Aim 2)

Secondary Outcome Measures
NameTimeMethod
Blood Pressure3 months

Systolic blood pressure

Fasting Plasma Glucose3 months

Trial Locations

Locations (1)

Vanderbilt University

🇺🇸

Nashville, Tennessee, United States

© Copyright 2025. All Rights Reserved by MedPath