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NYHA Class III Heart FailureNCT02939053

Correlation of SOZO BIS Measures With CardioMEMS PA Pressure

An observational study of NYHA Class III Heart Failure, run by ImpediMed Limited at 2 sites in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This study aims to establish the degree to which change in the ratio of ECF to TBW measured using the SOZO BIS device correlates with change in end-expiratory end-diastolic PAP measured using the CardioMEMS HF System (St. Jude Medical). Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
NYHA Class III Heart Failure
What is being tested?
SOZO
Type of treatment
Medical device
How many people
3 participants
Where
2 sitesUnited States
Study dates
29 Aug 2017to 25 Jun 2019
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Heart failure patients who have a cardioMEMS device

Who may be able to join

  • Age 18 years or older.
  • NYHA Class III HF.
  • Patient has undergone implantation of CardioMEMS HF System (St. Jude Medical).
  • Patient is characterized by at least one of the following:
  • CardioMEMS implanted within the previous 90 days
  • Received treatment with intravenous diuretics within the previous 30 days
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  • Received dose escalation of oral diuretics at least twice within the previous 30 days
  • Patient is able to sit upright for BIS measurements.
  • Patient provides written informed consent and authorization to use and disclose health information.

Who cannot join

  • Patient is enrolled in a concurrent interventional study of an experimental treatment that may confound the results of this study, in the investigator's opinion.
  • Patient has a clinical condition that would not allow them to complete the study.
  • Patient is pregnant or lactating.
  • Patient has nephrotic syndrome or nephrosis.
  • Patient has estimated glomerular filtration rate (eGFR) < 20 ml/min/1.73m2 or end-stage renal disease requiring chronic dialysis.
  • Patient has been diagnosed with lymphedema.
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  • Patient has chronic liver failure or cirrhosis.
  • Patient has a moderate or large pleural effusion as seen on chest X-ray.
  • Patient has been diagnosed with thrombophlebitis or deep vein thrombosis in arms or legs in the past 90 days.
  • Patient has an implanted cardiac rhythm management device (pacemaker or implantable cardioverter defibrillator).
  • Patient has an amputation of a limb.

Trial locations and contacts

2 sites in 1 country.

United States2 sites
  • Lancaster General Hospital

    Lancaster, Pennsylvania, 17603

  • Mayo Clinic

    Rochester, Minnesota, 55905

Other trials in United States

About this study

Official title: Correlation of Bioimpedance Measurements From the SOZO Device With Pulmonary Arterial Pressure Measurements From the CardioMEMS HF System

This study aims to establish the degree to which change in the ratio of ECF to TBW measured using the SOZO BIS device correlates with change in end-expiratory end-diastolic PAP measured using the CardioMEMS HF System (St. Jude Medical).

Read the detailed description

This is a prospective, single-arm, observational, non-randomized clinical study that will enroll patients with heart failure who have had a CardioMEMS™ device implanted to monitor their diastolic pulmonary artery pressure. The study will recruit and enroll thirty participants. Participants will be monitored daily at home for a period of 30 days. Each day, the patient's diastolic pulmonary artery pressure will be measured by CardioMEMS™ and the ImpediMed's BIS technology. Participant's weight will also be taken each day.

Being tested
SOZO
Keywords
Bioimpedance spectroscopy

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • SOZODevice

    The SOZO device is a bioimpedance spectroscopy device that measures bioimpedance parameters.

Study groups in NCT02939053
Study groupRoleWhat they receive
Single-armAll subjects enrolled will undergo measurements with the SOZO device daily for 30 days.
Receives: Device: SOZO

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in the ratio of whole body ECF/TBW measured using the SOZO BIS device

    Changes of body fluid levels in heart failure patients

    Measured: From baseline through study completion, an average of 30 days

Secondary outcomes (2)
  1. Change in the ratio of thoracic ECF/TBW

    Changes of thoracic fluid levels in heart failure patients

    Measured: From baseline through study completion, an average of 30 days

  2. Change in the ratio of lower extremity ECF/TBW

    Changes of lower limb fluid levels in heart failure patients

    Measured: From baseline through study completion, an average of 30 days

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted19 Oct 2016 (estimated)
  2. Study start29 Aug 2017
  3. Primary completion3 May 2018
  4. Study completion25 Jun 2019

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Prospective
Enrolment
3 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02939053
Sponsor's protocol ID
IPD-SOZO-01
Status last verified
Jul 2019
First submitted
12 Oct 2016
Last updated
8 Jul 2019
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
Yes
Individual data sharing
No: This is a pilot study, no individual participant data will be made available.

Publications

  • Accardi AJ, Matsubara BS, Gaw RL, Daleiden-Burns A, Heywood JT. Clinical Utility of Fluid Volume Assessment in Heart Failure Patients Using Bioimpedance Spectroscopy. Front Cardiovasc Med. 2021 Apr 7;8:636718. doi: 10.3389/fcvm.2021.636718. eCollection 2021.

    PubMed 33898536

Questions about this trial

What is this clinical trial studying?

An observational study of NYHA Class III Heart Failure, run by ImpediMed Limited at 2 sites in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 9 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 8 Jul 2019. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change in the ratio of whole body ECF/TBW measured using the SOZO BIS device (time frame: From baseline through study completion, an average of 30 days). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02939053, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 8 Jul 2019.

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