Evaluation of Pulmonary Doppler Signals in Patients With Systemic Sclerosis(SSc)

November 29, 2015 updated by: Echosense Ltd.

Evaluation of Lung Doppler Signals (LDS) in Detecting Pulmonary Arterial Hypertension in Patients With Systemic Sclerosis (SSc)

Doppler signals can be recorded from the lung parenchyma by means of a pulsed Doppler ultrasound system incorporating a special signal processing package- the Transthoracic Parametric Doppler (TPD) (Echosense Ltd., Haifa, Israel). Systemic sclerosis patients often develop pulmonary vascular disease leading to pulmonary hypertension. The TPD system may provide important insight into pulmonary blood vessels characteristics by the LDS (Lung Doppler Signals) signals that are related to pulmonary hypertension. The TPD performance in detecting PAH in SSc patients will be assessed in the study.

Study Overview

Status

Withdrawn

Conditions

Intervention / Treatment

Study Type

Interventional

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Israel
      • Ramat Gan, Israel
        • Sheba Medical Center, Pulmonology department

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Able and willing to give signed informed consent prior to enrollment
  2. Male or female, ≥ 18 years of age
  3. Diagnosis of SSc according to 2013 ACR/EULAR SSc Classification Criteria (van den Hoogen 2013): Score ≥ 9.
  4. Patients with RHC data available from measurement within 3 weeks prior to TPD assessment
  5. No change in or initiation of PAH specific therapy between the last RHC and TPD

Exclusion Criteria:

  1. People unable or unwilling to give informed consent.
  2. PCWP or LVEDP > 15 mmHg
  3. Any PH etiology outside Group 1 (Dana Point, 2008)
  4. Pregnant women
  5. Patients having severe chest wall deformity

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Doppler ultrasound
Recording Doppler ultrasound noninvasively from the right chest wall
Radiation: Doppler ultrasound
Recording Doppler ultrasound noninvasively from the right chest wall
Device: Transthoracic Parametric Doppler (TPD) (Echosense Ltd., Haifa, Israel)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of SSc patients correctly identified with pulmonary hypertension severity in each of the 4 defined groups by RHC.
Time Frame: 12 month
Analyze Doppler data of 4 SSc groups (according to pulmonary hypertension severity) resulting in typical features. The features will be implemented in a pre-determined diagnostic algorithm that will determine the overall statistical success of the method in comparison to RHC data.
12 month

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Echosense Ltd.

Investigators

  • Principal Investigator: Merav Lidar, Dr, Sheba medical center, Rheumatology department

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

November 1, 2014

Primary Completion (Anticipated)

November 1, 2015

Study Completion (Anticipated)

December 1, 2015

Study Registration Dates

First Submitted

October 27, 2014

First Submitted That Met QC Criteria

October 29, 2014

First Posted (Estimate)

October 30, 2014

Study Record Updates

Last Update Posted (Estimate)

December 2, 2015

Last Update Submitted That Met QC Criteria

November 29, 2015

Last Verified

August 1, 2014

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • DOP22_3

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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