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Percutaneous Temporary Placement of a Phrenic Nerve Stimulator for Diaphragm Pacing (RESCUE2)

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. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT03096639
Recruitment Status : Recruiting
First Posted : March 30, 2017
Last Update Posted : May 15, 2019
Information provided by (Responsible Party):
Lungpacer Medical Inc.

Brief Summary:
A randomized clinical trial to investigate the use of the temporary Diaphragm Pacing Therapy System (DPTS) to rehabilitate the diaphragm in mechanically ventilated patients who have failed at least two weaning attempts. The goal is to strengthen and rehabilitate the diaphragm to liberate the patient more quickly from mechanical ventilation.

Condition or disease Intervention/treatment Phase
Ventilator Induced Diaphragm Dysfunction Device: Diaphragmatic Pacing Therapy DPTS Not Applicable

Detailed Description:
Mechanical ventilation (MV) is a life saving technology but can also cause damage to the lungs and diaphragm such as ventricular induced diaphragmatic dysfunction (VIDD). Research has shown that after being on mandatory MV and sedated the diaphragm begins to atrophy within as short as 18 hours. The Lungpacer Diaphragm Pacing Therapy System (DPTS) is a temporary therapy that consists of the Lungpacer IntraVenous Electrode Catheter (LIVE Catheter) and the Lungpacer Control Unit system. The LIVE Catheter is a proprietary central venous catheter that incorporates pacing electrodes in strategic areas that align with the left and right phrenic nerves. The LIVE Catheter can also be used for fluid delivery like any other central venous catheter. The randomized clinical trial will investigate the safety, effectiveness and performance of the Lungpacer DPTS. By stimulating the diaphragm through daily therapy sessions, with the intention of exercising and rehabilitating the diaphragm muscle so the patient may be able to be more quickly liberated from MV. The patient population includes those who have been mechanically ventilated for greater than or equal to 96 hours (4days), have failed two or more spontaneous breathing trials (SBT), and were not hypervolemic during the latest spontaneous breathing trial. Patients must have resolution of the initial indication for placement on mechanical ventilation before entering the trial.

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 110 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Intervention Model Description: 1:1 randomization of treatment and control group
Masking: Single (Outcomes Assessor)
Masking Description: The ultrasound core lab reviewers will be blinded to study allocation groups
Primary Purpose: Treatment
Official Title: Percutaneous Temporary Placement of a Phrenic Nerve Stimulator for Diaphragm Pacing
Actual Study Start Date : September 14, 2017
Estimated Primary Completion Date : September 30, 2019
Estimated Study Completion Date : October 30, 2019

Arm Intervention/treatment
Active Comparator: Diaphragm Pacing Therapy DPTS
Diaphragm Pacing intervention will be conducted 2x a day using the Diaphragmatic Pacing Therapy System (DPTS). The DPTS includes the Lungpacer IntraVenous Electrode Catheter (LIVE Catheter) which is inserted temporarily into the left subclavian vein, the Lungpacer Control Unit (LCU external unit) and an intermediate cable that connects the LCU to the LIVE Catheter.
Device: Diaphragmatic Pacing Therapy DPTS
Subjects will undergo DPTS 2 times a day until successfully extubated with no reintubation within 48 hours.
Other Names:
  • DPTS
  • LIVE Catheter

No Intervention: Control Group
Standard of care treatment of weaning failure, no intervention is involved in this control group.

Primary Outcome Measures :
  1. Time to Successful Extubation with No Reintubation within 48 hours [ Time Frame: Patients will be allowed to stay in the study for up to 30 days if not extubated sooner. ]
    Removal from mechanical ventilation for greater than or equal to 48 hours during the study duration of 30 days

Secondary Outcome Measures :
  1. Time to reintubation if applicable [ Time Frame: from randomization to 30 days ]
    time placed back on mechanical ventilation

  2. Changes in diaphragmatic thickness on diaphragm ultrasound [ Time Frame: to successful weaning or on day 30 which ever comes first. ]
    Evaluate difference in changes in diaphragmatic thickness between study allocation groups from randomization to successful weaning or on day 30 whichever comes first;

  3. Changes in diaphragmatic thickening fraction on diaphragm ultrasound [ Time Frame: to successful weaning or on day 30 which ever comes first. ]
    Evaluate difference in changes in diaphragmatic thickening fraction between study allocation groups from randomization to successful weaning or on day 30 whichever comes first;

  4. Changes in MIP [ Time Frame: Successful weaning, or on day 30, whichever comes first. ]
    Evaluate difference in changes in MIP between study allocations from randomization successful weaning, or on day 30 post procedure, whichever comes first.

  5. RSBI [ Time Frame: Successful weaning, or on day 30 whichever comes first. ]
    Daily rapid shallow breathing index (RSBI) measurements collected during the SBTs, or on spontaneous breathing mode if unable to perform an SBT.

Information from the National Library of Medicine

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

Inclusion Criteria:

  • 18 years of age or older
  • have been mechanically ventilated for > or = to 96 hours (4 days), and
  • have satisfied the Readiness-to-Wean criteria and
  • have failed at least two VLTs, one of which is the study specific VLT.

Exclusion Criteria:

  • currently on extracorporeal membrane oxygenation (ECMO);
  • weaning failure due to hypervolemia;
  • medical history or known anatomy that prevents insertion of the LIVE Catheter into the left subclavian vein;
  • currently being treated with neuromuscular blockade;
  • clinically overt congestive heart failure that is preventing weaning;
  • pre-existing neuromuscular diseases that could affect the respiratory muscles;
  • pre-existing severe chronic pulmonary fibrosis;
  • pleural effusions occupying greater than one third of the pleural space on either side;
  • BMI > or = 40;
  • known or suspected phrenic nerve paralysis;
  • any electrical device (implanted or external) that may be prone to interaction with or interference from the Lungpacer DPTS including neurological pacing/stimulator devices, cardiac pacemakers and defibrillators;
  • prior bacteremia reported within the last 48 hours;
  • current hemodynamic instability, sepsis or septic shock;
  • terminally ill with 6 months or less life expectancy or not committed to full care;
  • known or suspected to be pregnant or lactating; and
  • treatment with an investigational drug or device within 30 days of enrollment.

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): NCT03096639

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Contact: Linda H Clark, BSN 512-633-7077
Contact: Alfred Ricer

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CHU Angers, Reanimation Medicale Recruiting
Angers, France, 49933
Contact: Study Coordinator   
Principal Investigator: Alain Mercat, MD         
Sub-Investigator: Pierre Asfar, MD         
Sub-Investigator: Satar Mortaza, MD         
Sub-Investigator: Francois Beloncle, MD         
Sub-Investigator: Pierre-Yves Olivier, MD         
Sub-Investigator: Achille Kouatchet, MD         
Sub-Investigator: Marc Pierrot, MD         
Hopital Louis-Mourier Recruiting
Colombes, France, 92700
Contact: Sébastien Besset, MD         
Contact: Coralie Gernez    +33147606767   
Sub-Investigator: Didier Dreyfuss, Prof         
Principal Investigator: Sébastien Besset, MD         
CHU Montpellier Recruiting
Montpellier, France
Contact: Claudine gniadek   
Principal Investigator: Boris Jung, Prof         
Sub-Investigator: Samir Jaber, Prof         
Centre Hospitalier Universitaire de Nice (CHU Nice) Recruiting
Nice, France, 06001
Contact: Charles-Hugo Marquette, MD         
Contact: Jennifer Griffonnet   
Sub-Investigator: Charles-Hugo Marquette, Prof.         
Principal Investigator: Fernand Macone, MD         
Hopital Europeen Georges-Pompidou Recruiting
Paris, France, 75015
Contact: Jean-Luc Diehl, MD   
Contact: Clotilde Bailleul, MD   
Principal Investigator: Jean-Luc Diehl, Prof. Dr.         
Sub-Investigator: Clotilde Bailleul, MD         
Sub-Investigator: Emmanuel Guerot, MD         
Pitie Salpetriere Hospital Recruiting
Paris, France, 75651
Contact: Laura Morizot, PhD   
Principal Investigator: Martin Dres, MD         
Sub-Investigator: Alexander Demoule, MD         
Sub-Investigator: Thomas Similowski, Prof         
Sub-Investigator: Julie Delemazure, MD         
Centre Hospitalier Universitaire CHU Recruiting
Strasbourg, France, 67000
Contact: Ferhat Meziani, Prof. Dr         
Contact: Samir Chenaf   
Principal Investigator: Ferhat Meziani, Prof. Dr.         
Sub-Investigator: Julie Helms, MD         
Sub-Investigator: Raphael Clere-Jehl, MD         
Sub-Investigator: Hassene Rahmani, MD         
Uniklinik RWTH Aachen Completed
Aachen, Germany, 52074
Heart and Diabetes Center Bad Oeynhausen Completed
Bad Oeynhausen, Germany, 32545
Charite Universitatsmedizin Berlin - Mitte campus Recruiting
Berlin, Germany, 10117
Principal Investigator: Holger Muller-Redetzky, MD         
Sub-Investigator: Alexander Uhrig, MD         
Universitatsklinikum Bonn Recruiting
Bonn, Germany, 53105
Contact: Study Coordinator   
Principal Investigator: Christian Putensen, MD         
Sub-Investigator: Thomas Muders, MD         
Sub-Investigator: Jens Schewe, MD         
Sub-Investigator: Martin Scholz, MD         
Universitatsklinik Dresden Recruiting
Dresden, Germany, 01307
Contact: PI, Prof. Dr. Med   
Principal Investigator: Marcelo G Abreu, MD         
Sub-Investigator: Andreas Guldner, MD         
Sub-Investigator: Christopher Ullig, MD         
Sub-Investigator: Peter Spieth, MD         
Sub-Investigator: Martin Scharffenberg, MD         
Universitatsmedizin Gottingen, Georg-August-Universitat Recruiting
Gottingen, Germany, 37075
Contact: Study Coordinator   
Sub-Investigator: Onnen Mörer, MD         
Principal Investigator: Michael Quintel, MD         
Sub-Investigator: Lars-Olav Harnisch, MD         
Asklepios Kliniken Hamburg GmbH - Asklepios Klinikum Harburg Not yet recruiting
Hamburg, Germany, 21075
Contact: Gunther H Wiest, MD    49 401818862241   
Contact: Claudia Heitmann    49 491818864570   
Principal Investigator: Gunther H Wiest, MD         
Sub-Investigator: Martin Bachmann, MD         
Sub-Investigator: Barbara Schrodter, MD         
Universitätsklinikum Hamburg-Eppendorf (UKE) Recruiting
Hamburg, Germany
Contact: Dominik Jarczak, MD   
Principal Investigator: Stefan Kluge, Prof. Dr.         
Sub-Investigator: Axel Nierhaus, MD         
Sub-Investigator: Daniel Frings, MD         
Sub-Investigator: Dominik Jarczak, MD         
Med Uni-Heidelberg Recruiting
Heidelberg, Germany, 69126
Contact: Felix Herth, MD         
Contact: Simone Hummler, MD   
Principal Investigator: Felix Herth, Prof. MD         
Sub-Investigator: Florian Bornitz, MD         
Universitätsklinikum Jena Recruiting
Jena, Germany
Principal Investigator: Andreas Kortgen, Prof. Dr.         
Sub-Investigator: Frank Bloos, MD         
Sub-Investigator: Daniel Thomas-Rüddel, MD         
Klinikum Nuernberg Recruiting
Nuernberg, Germany, 90419
Contact: Arnim Geise, MD   
Principal Investigator: Arnim Geise, Prof. Dr.         
Universitatsklinikum Regensburg Recruiting
Regensburg, Germany, 93053
Contact: Maximilian Malfertheiner, MD         
Contact: Tanja Emmer   
Principal Investigator: Maximilian Malfertheiner, MD         
Sub-Investigator: Matthias Lubnow, MD         
Fachkrankenhaus Kloster Grafschaft Recruiting
Schmallenberg, Germany
Contact: Dominic Dellweg, MD   
Principal Investigator: Dominic Dellweg, MD         
Wissenschaftliches Institut Bethanien fur Pneumologie e.V. Recruiting
Solingen, Germany, 42699
Contact: Winfried Randerath, MD    49 212 63 6001   
Principal Investigator: Winfried Randerath, MD         
Sub-Investigator: Lars Hagemeyer, MD         
Sub-Investigator: Simon-Dominik Herkenrath, MD         
Sub-Investigator: Georgios Sofianos, MD         
Sub-Investigator: Marcel Treml, MD         
Sponsors and Collaborators
Lungpacer Medical Inc.
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Study Director: Linda H Clark, BSN Vice President of Clinical Affairs, Lungpacer Medical, Inc.

Publications automatically indexed to this study by Identifier (NCT Number):
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Responsible Party: Lungpacer Medical Inc. Identifier: NCT03096639     History of Changes
Other Study ID Numbers: P-200
First Posted: March 30, 2017    Key Record Dates
Last Update Posted: May 15, 2019
Last Verified: May 2019
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Undecided
Plan Description: Only investigators participating in this clinical trial will be able to see final de-identified participant data at the completion of the study and it will be available through the clinical research organization (CRO).

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: Yes
Device Product Not Approved or Cleared by U.S. FDA: Yes
Pediatric Postmarket Surveillance of a Device Product: No
Product Manufactured in and Exported from the U.S.: Yes

Keywords provided by Lungpacer Medical Inc.:
Diaphragm atrophy
Weaning failure