Sitagliptin and Endothelial Dysfunction
Preventive Effects of Sitagliptin on Endothelial Dysfunction Induced by Forearm Ischemia-Reperfusion Injury Model
1 other identifier
interventional
10
1 country
1
Brief Summary
Over the years, numbers of cardioprotective drugs have been evaluated to attenuate lethal ischemia-reperfusion (IR) injuries. There is little study whether sitagliptin protects against endothelial dysfunction induced by IR injury in humans.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_3 healthy
Started Feb 2015
Shorter than P25 for phase_3 healthy
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
February 1, 2015
CompletedFirst Submitted
Initial submission to the registry
March 14, 2015
CompletedFirst Posted
Study publicly available on registry
April 2, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2015
CompletedStudy Completion
Last participant's last visit for all outcomes
August 1, 2015
CompletedApril 2, 2015
March 1, 2015
4 months
March 14, 2015
April 1, 2015
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
The difference of FMD [brachial artery endothelium-dependent flow-mediated dilatation] after IR injury (brachial FMD before and after IR injury will be assessed)
2 hours after study drug treatment
Secondary Outcomes (1)
The difference of FMD after IR injury in co-treatment of glibenclimide and sitagliptin ((brachial FMD before and after IR injury will be assessed)
3.5 hours after study drug treatment
Other Outcomes (1)
Adverse events
3 weeks
Study Arms (3)
Sitagliptin
EXPERIMENTALAll participant will exam brachial artery endothelium-dependent flow-mediated dilatation (FMD). After then, pneumatic cuff wiil be inflated to 200 mmHg for 15 minutes to induce brachial artery ischemia. At the end of ischemia, 15 minutes of reperfusion was performed to induce reperfusion injury. After ischemia-reperfusion (IR) injury, brachial artery FMD will be measured again. After randomization, sitagliptin group will be treated by single dose of sitagliptin (Januvia) 50mg. In 2 hours later, brachial artery FMD measurement, IR injury and brachial artery FMD measurement will be measured again.
Placebo
PLACEBO COMPARATORAfter brachial artery FMD measurement, IR injury for each 15 minutes will be performed, and brachial artery FMD will be measured again. After randomization, placebo group will be treated by nothing. In 2 hours later, brachial artery FMD measurement, IR injury and brachial artery FMD measurement will be measured again.
Sitagliptin and glibenclimide
OTHERIf sitagliptin treatment show preventive effects of IR injury, the investigator will perform additional experiment to explore the mechanism (Protocol 2 study). Additional 15 healthy volunteers will be treated 5 mg of glibenclamide (Euglucon) 1 hour before administration of 50 m g of sitagliptin. In 2 hours after sitagliptin administration, FMD measurement before and after IR injury will be performed as described above.
Interventions
The brachial FMD before and after IR injury will be assessed. After randomization, study medication will be treated. In 2 hours later, the brachial FMD before and after IR injury will be assessed again. All volunteers had a wash-out period of 7 days. Seven days later, the subjects returned to crossover study medication (ie, sitagliptin or placebo), and the protocol described above was repeated.
Eligibility Criteria
You may qualify if:
- healthy volunteer age 20 to 40 years
- non-smoker
You may not qualify if:
- High blood pressure (\>140/90 mmHg) or any antihypertensive medications
- diabetes
- any cardiovascular disease
- kidney disease
- thyroid disease
- cerebrovascular disease
- liver disease (bilirubin level \>2 mg/dl)
- pregnancy
- body mass index \>25 kg/m2
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Kyung Hee University Hospital
Seoul, Seoul, 130-872, South Korea
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Weon Kim, MD, PhD
Kyunghee University Medical Center
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- phase 3
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- INVESTIGATOR
- Purpose
- PREVENTION
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
March 14, 2015
First Posted
April 2, 2015
Study Start
February 1, 2015
Primary Completion
June 1, 2015
Study Completion
August 1, 2015
Last Updated
April 2, 2015
Record last verified: 2015-03