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Cardiac Resynchronization Therapy in Pulmonary Hypertension (CRT in PH)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT03077139
Recruitment Status : Completed
First Posted : March 10, 2017
Last Update Posted : September 20, 2017
Information provided by (Responsible Party):
Dr. Daniel P Morin, MD MPH FHRS, Ochsner Health System

Brief Summary:
This study is being conducted to determine whether patients with advanced pulmonary hypertension when treated with cardiac resynchronization therapy improve hemodynamically and/or receive clinical benefit.

Condition or disease Intervention/treatment Phase
Pulmonary Hypertension Device: Cardiac Resynchronization Therapy (CRT) Not Applicable

Detailed Description:
This study aims to determine whether stimulating earlier activation of the failing right ventricle in pulmonary hypertension reduces the effects of interventricular dependence in human subjects, thereby improving overall cardiac function and symptoms in patients with pulmonary hypertension and right ventricle failure with NYHA Class 3-4 symptoms.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 6 participants
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Cardiac Resynchronization Therapy in Pulmonary Hypertension
Actual Study Start Date : November 29, 2012
Actual Primary Completion Date : March 23, 2017
Actual Study Completion Date : March 23, 2017

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: Arms
Pacing wires used to stimulate ventricles in a synchronous matter
Device: Cardiac Resynchronization Therapy (CRT)
A CRT device sends small electrical impulses to both lower chambers of the heart to help them beat together in a more synchronized pattern.

Primary Outcome Measures :
  1. 15% increase in cardiac output at the optimal VV interval over baseline cardiac output [ Time Frame: the procedure ]
    Primary Outcome

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years to 75 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Pulmonary hypertension, defined as pulmonary artery systolic pressure greater than 40 mm Hg by transthoracic echocardiogram or right heart catheterization
  • LVEF ≥ 50%
  • Baseline 6MWT distant <400 meters
  • Baseline NYHA Functional class ≥ III

Exclusion Criteria:

  • LVEF < 50%
  • 6MWT duration > 400 meters
  • NYHA Functional class < III
  • Left bundle branch block
  • Non-sinus rhythm
  • Severe aortic stenosis (Aortic valve area < 1 cm2)
  • Severe mitral regurgitation
  • Acute cardiac failure
  • Dependency on intravenous inotropies
  • Severe obstructive pulmonary disease
  • Hypertrophic obstructive cardiomyopathy
  • Amyloidosis
  • Dependence on pacing

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT03077139

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United States, Louisiana
Ochsner Medical Center
New Orleans, Louisiana, United States, 70121
Sponsors and Collaborators
Dr. Daniel P Morin, MD MPH FHRS
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Principal Investigator: Daniel Morin, MD Cardiac Electrophysiologist

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Responsible Party: Dr. Daniel P Morin, MD MPH FHRS, Cardiac Electrophysiologist, Ochsner Health System Identifier: NCT03077139    
Other Study ID Numbers: CRT in PH
First Posted: March 10, 2017    Key Record Dates
Last Update Posted: September 20, 2017
Last Verified: September 2017
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Undecided

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Product Manufactured in and Exported from the U.S.: No
Additional relevant MeSH terms:
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Hypertension, Pulmonary
Vascular Diseases
Cardiovascular Diseases
Lung Diseases
Respiratory Tract Diseases