Nitrate and Hypertension in Heart Transplanted Patients | NCT00449059

Studies
Nitrate and Hypertension in Heart Transplanted Patients

NCT00449059

Sponsor

University of Zurich

Status

Completed

Last Update Posted

Mar 19, 2007Estimated

Enrollment

Phase

Phase 4

Conditions

Hypertension
Heart Transplantation

Interventions

acute infusion of nitroglycerine into the pulmonary artery

Countries

Switzerland

Protocol Section

Identification Module Status Module Sponsor/Collaborators Module Oversight Module Description Module Conditions Module Design Module Arms/Interventions Module Outcomes Module Eligibility Module Contacts/Locations Module References Module IPD Sharing Statement Module

Results Section

Participant Flow Module Baseline Characteristics Module Outcome Measures Module Adverse Events Module More Info Module

Annotation Section

Annotation Module

Document Section

Large Document Module

Derived Section

Miscellaneous Info Module Condition Browse Module Intervention Browse Module

Protocol Section

Identification Module

NCT ID

Results Section

No data available

No data is available for this block.

Annotation Section

No data available

No data is available for this block.

Document Section

No data available

No data is available for this block.

Derived Section

Miscellaneous Info Module

Version Holder

Status Module

Record Verification Date

Mar 2007

Overall Recruitment Status or Expanded Access Status

Completed

Last Known Status

Not provided

Delayed Posting

Not provided

Why Stopped

Not provided

Expanded Access Info

Start Date

Jan 2003

Primary Completion Date

Not provided

Completion Date

Dec 2004Actual

First Submitted Date

Mar 15, 2007

First Submission Date that Met QC Criteria

Mar 15, 2007

First Posted Date

Mar 19, 2007Estimated

Results Waived

Not provided

Results First Submitted Date

Not provided

Results First Submitted that Met QC Criteria

Not provided

Results First Posted Date

Not provided

Certification/Extension (aka Delayed Results) First Submitted Date

Not provided

Certification/Extension First Submitted that Passed QC Review

Not provided

Certification/Extension First Posted Date

Not provided

Last Update Submitted Date

Mar 15, 2007

Last Update Posted Date

Mar 19, 2007Estimated

Oversight Module

Has Data Monitoring Committee (DMC)

Is FDA Regulated Drug

Not provided

Is FDA Regulated Device

Not provided

Is Unapproved Device

Not provided

Pediatric Postmarket Surveillance of a Device Product

Not provided

Product Exported from US

Not provided

FDAAA801 Violation

Not provided

Description Module

Brief Summary

The aim of the study was to evaluate the acute effect of nitroglycerine infusion on blood pressure and heart rate in heart-transplanted patients with cyclosporine-induced hypertension.

Detailed Description

Background: Cyclosporine represents a milestone in immunosuppression after organ transplantation. Its use, however, comes at the cost of significant side effects, such as arterial hypertension. Our aim was to investigate the effect of acute administration of nitroglycerin in heart-transplanted patients with cyclosporine-induced hypertension.

Methods: We included 18 hypertensive patients (HT) scheduled for elective cardiac catheterization after heart transplantation and treated with cyclosporine, as well as 6-matched HT. Simultaneous measurements of BP in the aorta and pulmonary artery before and after administration of nitroglycerin were done.

Results: After injection of 50μg and 100μg nitroglycerin a significant BP decrease was observed both in heart-transplanted patients (sBP p=0.0001; dBP p=0.0001) and in controls (sBP p=0.006; dBP p=0.05). This reduction was more pronounced in heart-transplanted patients (sBP p=0.022; dBP 0.018 for group comparison). 8±3 minutes after the last nitrate infusion BP remained significantly reduced vs baseline in heart-transplanted patients (p<0.001) while it comes back to baseline in controls. The reduction in sBP (p=0.04 after 50μg nitroglycerin; p=0.05 after 100μg nitroglycerin) but not dBP correlated to cyclosporinemia.

Conclusions: This study indicates that nitroglycerin reduces sBP in heart-transplanted patients with cyclosporine-induced hypertension. Further studies are needed to evaluate the long-term effect of nitrates in these patients.

Design Module

Study Type

Interventional

Number of References to an Expanded Access Study

Not provided

Expanded Access Types

Not provided

Patient Registry

Not provided

Target Follow-Up Duration

Not provided

Phases

Phase 4

Interventional Study Design

Allocation

Biospecimen

No data available

No data is available for this block.

Enrollment

Name	Type	Description	Arm Group Labels	Other Names
acute infusion of nitroglycerine into the pulmonary artery	Drug

Outcomes Module

Primary Outcomes

Measure	Description	Time Frame
Blood pressure reduction after acute nitroglycerine infusion

Secondary Outcomes

Measure	Description	Time Frame
Heart rate modification after acute nitroglycerine infusion

Other Outcomes

Not provided

Eligibility Module

Eligibility Criteria

Inclusion Criteria:

Heart-transplanted group:
Patients with hypertension and treated with cyclosporine
Patients under optimal standard therapy
Patients giving written informed consent

Control group:

Patients with hypertension
Patients without prior transplantation of any kind
Patients giving written informed consent

Exclusion criteria:

Hypertensive patients receiving immunosuppressive drugs
Patients receiving any kind or nitrate derivates

Accepts Healthy Volunteers

Sex

All

Sex/Gender Based

Not provided

Sex/Gender Description

Not provided

Minimum Age

18 Years

Maximum Age

80 Years

Standard Ages

AdultOlder Adult

Study Population

Not provided

Sampling Method

Not provided

Contacts/Locations Module

Central Contacts

Not provided

Overall Officials

Name	Affiliation	Role
Roberto Corti, MD	Cardiovascular Center, University Hospital Zurich, Zurich, Switzerland	Principal Investigator

Locations

Facility	Status	City	State	ZIP	Country	Contacts
University Hospital of Zurich		Zurich		CH8091	Switzerland

Condition Browse Module

MeSH Terms

ID	Term
D006973	Hypertension

Ancestor Terms

ID	Term
D014652	Vascular Diseases
D002318	Cardiovascular Diseases

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