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Sleep Disordered BreathingPhase 2NCT01124370

Chronic Evaluation of Respicardia Therapy

A Phase 2 study testing remedē (TM) system in people with Sleep Disordered Breathing and Cheyne Stokes Respiration, run by Respicardia, Inc. at 13 sites in 4 countries.

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

The purpose of this study is to determine the chronic safety and efficacy of phrenic nerve stimulation on central sleep apnea (CSA). Clinically, CSA events translate into sleep fragmentation, excessive daytime sleepiness, reduced exercise capacity, and possibly ventricular arrhythmias. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
remedē (TM) system
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
57 participants
Where
13 sitesin 4 countries
Study dates
May 2010to Aug 2014
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

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

Who may be able to join

  • Candidate is at least 18 years old
  • Candidates with known recent history of Periodic Breathing, as evidenced by an overnight polysomnogram (PSG) within 60 days of the implant procedure demonstrating:
  • Apnea-Hypopnea Index (AHI) greater than or equal to 20 events/hr
  • Predominantly central origin (central apnea events comprise 50% or more of all apnea events)
  • Limited obstructive events (obstructive apneas comprise less than 20% of the AHI)

Who cannot join

  • Candidates who are pregnant
  • Candidates with baseline oxygen saturation less than or equal to 90% on a stable FiO2
  • Candidates with severe COPD
  • Candidates with a history of cerebrovascular accident (CVA), myocardial infarction, coronary artery bypass grafting (CABG) surgery, or percutaneous coronary intervention (PCI) within the 3 months prior to the study
  • Candidates with unstable angina
  • Candidates with history of primary pulmonary hypertension

Trial locations and contacts

13 sites in 4 countries.

13 sites in 4 countries

United States5 sites
  • The Ohio State University

    Columbus, Ohio

  • Lancaster Heart and Stroke Foundation

    Lancaster, Pennsylvania, 17602

  • BryanLGH Heart Institute

    Lincoln, Nebraska, 68506

  • St. Thomas Heart

    Nashville, Tennessee

  • Sentara Cardiovascular Research Institute

    Norfolk, Virginia, 23507

Other trials in United States

Germany4 sites
  • Heart and Diabetes Center

    Bad Oeynhausen

  • Köln University

    Cologne

  • University of Kiel

    Kiel

  • St. Adolf-Stift Hospital

    Reinbek

Other trials in Germany

Poland3 sites
  • Jagiellonian University

    Krakow

  • Medical Military Institute

    Warsaw

  • 4th Military Hospital

    Wroclaw

Other trials in Poland

Italy1 site
  • Policlinico di Monza-IRCCS

    Monza

Other trials in Italy

About this study

Official title: Safety and Efficacy Evaluation of Respicardia Therapy for Central Sleep Apnea

The purpose of this study is to determine the chronic safety and efficacy of phrenic nerve stimulation on central sleep apnea (CSA). Clinically, CSA events translate into sleep fragmentation, excessive daytime sleepiness, reduced exercise capacity, and possibly ventricular arrhythmias.

The study is chronic in nature, such that subjects will undergo the implantation of an implantable pulse generator and stimulation lead. A sensing lead may also be placed during the initial implant procedure. Subjects will be followed for up to six-months on therapy to assess respiratory and heart failure outcomes. Following the six-month therapy visit, subjects will enter into a long-term follow-up phase until the completion of the study.

It is anticipated that data obtained in this study will show that the proposed intervention can modify respiration with a low incidence of adverse effects. The results of this trial are intended to be used to develop a subsequent protocol for pivotal study.

Being tested
remedē (TM) system
Keywords
Sleep Disordered Breathing, Cheyne Stokes Respiration, Periodic Breathing, Sleep Apnea, Central Sleep Apnea
Medical subject headings
Sleep Apnea Syndromes, Cheyne-Stokes Respiration, Sleep Apnea, Central

What participants receive

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

  • remedē (TM) systemDevice

    Also called Respicardia Therapy, Cardiac Concepts Therapy, (note: Respicardia was formerly Cardiac Concepts)

    Implantation of the remedē (TM) system, including implantable pulse generator, stimulation lead, and (optional) sensing lead. Nightly provision of unilateral transvenous phrenic nerve therapy during sleep periods.

Study groups in NCT01124370
Study groupRoleWhat they receive
TreatmentExperimentalAll enrolled subjects will undergo attempted system implantation and therapeutic assessment. Subjects' baseline assessment values will serve as control parameters for the therapy evaluation.
Receives: Device: remedē (TM) system

What is being measured

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

  1. AHI Change From Baseline at 3 Months

    Change = Month 3 score - Baseline score The Apnea-Hypopnea Index (AHI) is an index used to indicate the severity of sleep apnea. It is represented by the number of apnea and hypopnea events per hour of sleep.

    Measured: Baseline and 3 months on therapy

Secondary outcomes (6)
  1. Related Adverse Events

    The number of subjects with a serious adverse event (SAE) considered related to the remedē system or implant procedure is provided. The number of subjects with a non-SAE related to the remedē system or implant procedure is also provided. Events are included if they occurred on or after the initial implant date through 2 years post implant. A subject may have both SAE and non-SAE events, so the participants with serious events cannot be added to the non-serious participants to get the total number of participants experiencing a related event.

    Measured: Up to 2 years

  2. Epworth Sleepiness Scale Change From Baseline at 6 Months

    Change = Month 6 score - Baseline score The ESS is an assessment to measure a subject's general level of daytime sleepiness. Scores can range from 0-24, with higher scores indicating higher level of daytime sleepiness.

    Measured: Baseline and 6 months on therapy

  3. Minnesota Living With Heart Failure Questionnaire Change From Baseline at 6 Months

    Change = Month 6 score - Baseline score This questionnaire was for the N=46 patients diagnosed with heart failure. Scores can range from 0-105, with lower scores indicating better quality of life.

    Measured: Baseline and 6 months on therapy

  4. Heart Failure Clinical Composite

    The composite is determined according to the following definitions.

    Worsened: subject died; was hospitalized due to or associated with worsening HF; demonstrated worsening in NYHA class at last observation carried forward; moderate-marked worsening of patient global assessment score at last observation carried forward; or permanently discontinued therapy from the remedē System due to or associated with worsening HF.

    Improved: subject did not worsen (as defined above) and demonstrated improvement in NYHA class at last observation carried forward or moderate-marked improvement in patient global assessment score at last observation carried forward.

    Unchanged: patient was neither improved nor worsened.

    Measured: 6 months on therapy

  5. Six-minute Hall Walk Test Change From Baseline at 6 Months

    Change = Month 6 score - Baseline score

    Measured: Baseline and 6 months on therapy

  6. NYHA Functional Class Improvement From Baseline to 6 Months

    Shift in NYHA Class from baseline to 6 months NYHA Class I - Patients with cardiac disease but without resulting limitation of physical activity. Ordinary physical activity does not cause undue fatigue, palpitation, dyspnea or anginal pain.

    NYHA Class II - Patients with cardiac disease resulting in slight limitation of physical activity. They are comfortable at rest. Ordinary physical activity results in fatigue, palpitation, dyspnea or anginal pain.

    NYHA Class III - Patients with cardiac disease resulting in marked limitation of physical activity. They are comfortable at rest. Less than ordinary activity causes fatigue, palpitation, dyspnea or anginal pain.

    NYHA Class IV - Patients with cardiac disease resulting in inability to carry on any physical activity without discomfort. Symptoms of heart failure or the anginal syndrome may be present event at rest. If any physical activity is undertaken, discomfort increases.

    Measured: Baseline and 6 months on therapy

Timeline

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

  1. First posted17 May 2010 (estimated)
  2. Study startMay 2010
  3. Primary completionAug 2014
  4. Study completionAug 2014

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrolment
57 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01124370
Sponsor's protocol ID
Respicardia - Chronic Study I
Status last verified
Apr 2016
First submitted
13 May 2010
Last updated
16 May 2016
Data monitoring committee
No

Publications

  • Javaheri S, McKane SW, Cameron N, Germany RE, Malhotra A. In patients with heart failure the burden of central sleep apnea increases in the late sleep hours. Sleep. 2019 Jan 1;42(1):zsy195. doi: 10.1093/sleep/zsy195.

    PubMed 30325462
  • Abraham WT, Jagielski D, Oldenburg O, Augostini R, Krueger S, Kolodziej A, Gutleben KJ, Khayat R, Merliss A, Harsch MR, Holcomb RG, Javaheri S, Ponikowski P; remede Pilot Study Investigators. Phrenic nerve stimulation for the treatment of central sleep apnea. JACC Heart Fail. 2015 May;3(5):360-369. doi: 10.1016/j.jchf.2014.12.013. Epub 2015 Mar 11.

    PubMed 25770408

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing remedē (TM) system in people with Sleep Disordered Breathing and Cheyne Stokes Respiration, run by Respicardia, Inc. at 13 sites in 4 countries.

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 5 inclusion and 6 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 16 May 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 13 sites in United States, Germany, Poland, Italy. 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.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 31 Aug 2015). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

AHI Change From Baseline at 3 Months (time frame: Baseline and 3 months on therapy). 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 NCT01124370, which also lists 2 linked publications.

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 16 May 2016.

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