Efficacy Study of a Novel Device to Clean the Endotracheal Tube

NCT ID: NCT01765530

Last Updated: 2017-10-18

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

74 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-09-30

Study Completion Date

2013-12-31

Brief Summary

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The purpose of this study is to evaluate the in-vivo efficacy of a novel device (endOclear) for cleaning the endotracheal tube (ETT) lumen from secretions. The investigators hypothesize that a protocol of routine ETT cleaning with endOclear may increase the ETT luminal volume measured at extubation compared to the current standard of care. The device may therefore be clinically useful by better maintaining the ETT original function.

Detailed Description

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After a few days of mechanical ventilation (MV), the lumen of the endotracheal tube (ETT) is coated with a thick bacterial biofilm, which is a potential source for bacterial colonization of the lower respiratory tract and ventilator-associated pneumonia (VAP). Accumulation of mucus/secretions on the interior of the ETT also effectively lowers the cross section of the ETT and increases significantly the work of breathing in intubated patients, who then require increased MV support, with prolonged intubation and ICU stay.

A primary goal for all ICUs is to shorten the time of MV, to decrease the incidence of ETT microbial colonization and ultimately VAP incidence. To meet this goal several airways technologies to maintain the ETT free from debris/bacteria have been developed in order to improve the current ventilator-liberation standards in intubated critically ill patients.

Based on preliminary laboratory, animal and clinical data, The investigators now wish to test the hypothesis that a novel commercially available ETT cleaning device can be effective in targeting two specific issues:

* Specific aim 1: To evaluate the mean difference in ETT luminal volume of ETTs cleaned with the novel cleaning device (EndOclear) vs. ETT cleaned in the standard manner.
* Specific aim 2: To determine whether ETTs cleaned with the novel device show a lower degree of microbial colonization for the entire period of mechanical ventilation.

Data about in-vivo respiratory mechanics measurements, microbial diversity and antibiotic resistance analysis, users' feedbacks and safety of the device will also be collected.

The investigators will conduct a clinical trial on 74 intubated patients randomized to receive standard ETT cleaning or cleaning with the EndOclear.

Conditions

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Endotracheal Extubation Airway Obstruction Airway Control Pneumonia, Ventilator-Associated Breathing Mechanics

Keywords

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Medical Devices Ventilator-Associated Pneumonia (VAP) Ventilator-Associated Events (VAE) Endotracheal Tube Microbial Diversity Anti-Resistance Computed Tomography (CT)

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Outcome Assessors

Study Groups

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ETT cleaning manuver

Patients randomized to the treatment group will undergo an ETT cleaning maneuver with endOclear three times a day (every 8 hours) for the whole intubation period in addition to the standard of care.

Group Type EXPERIMENTAL

ETT cleaning maneuver

Intervention Type DEVICE

EndOclear device will be used for ETT cleaning maneuver. This is a commercially available device. It consists of an ETT cleaning apparatus with a flexible central tube and a cleaning device at its distal end. The cleaning device has a mechanically expandable mesh structure which can be adapted to selectively move between a radially-collapsed position and a radially-expanded one. In operation, the collapsed cleaning apparatus is inserted into the ETT through a Y-shaped connector. The device is then expanded by a safety toggle protected trigger mechanism that, when fired, presses the device's smooth silicone disc against the inside surface of the ETT. The cleaning apparatus is then pulled out of the ETT removing mucus deposits and secretions.

We will add endOclear to the standard ICU practice, scheduling the systematic use of the device every 8 hours for the whole intubation period.

Standard of care

In the protocol no intervention is planned for the control group, which will therefore be treated with blind suctioning as per caregiver clinical decision.

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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ETT cleaning maneuver

EndOclear device will be used for ETT cleaning maneuver. This is a commercially available device. It consists of an ETT cleaning apparatus with a flexible central tube and a cleaning device at its distal end. The cleaning device has a mechanically expandable mesh structure which can be adapted to selectively move between a radially-collapsed position and a radially-expanded one. In operation, the collapsed cleaning apparatus is inserted into the ETT through a Y-shaped connector. The device is then expanded by a safety toggle protected trigger mechanism that, when fired, presses the device's smooth silicone disc against the inside surface of the ETT. The cleaning apparatus is then pulled out of the ETT removing mucus deposits and secretions.

We will add endOclear to the standard ICU practice, scheduling the systematic use of the device every 8 hours for the whole intubation period.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Age ≥ 18 years
* Patients expected to be intubated for at least 48 hours or longer
* Enrollment within 24 hours from intubation time

Exclusion Criteria

* Current and past participation in another intervention trial conflicting with the present study
* Pregnant women and prisoners
Minimum Eligible Age

18 Years

Maximum Eligible Age

99 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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West Virginia University

OTHER

Sponsor Role collaborator

endOclear, LLC.

UNKNOWN

Sponsor Role collaborator

Massachusetts General Hospital

OTHER

Sponsor Role lead

Responsible Party

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Robert M. Kacmarek

Director, Respiratory Care Services; Professor of Anesthesia

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Robert M Kacmarek, PhD, RRT

Role: PRINCIPAL_INVESTIGATOR

Massachusetts General Hospital

Locations

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Massachusetts General Hospital

Boston, Massachusetts, United States

Site Status

Countries

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United States

References

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Adair CG, Gorman SP, Feron BM, Byers LM, Jones DS, Goldsmith CE, Moore JE, Kerr JR, Curran MD, Hogg G, Webb CH, McCarthy GJ, Milligan KR. Implications of endotracheal tube biofilm for ventilator-associated pneumonia. Intensive Care Med. 1999 Oct;25(10):1072-6. doi: 10.1007/s001340051014.

Reference Type BACKGROUND
PMID: 10551961 (View on PubMed)

Shapiro M, Wilson RK, Casar G, Bloom K, Teague RB. Work of breathing through different sized endotracheal tubes. Crit Care Med. 1986 Dec;14(12):1028-31. doi: 10.1097/00003246-198612000-00007.

Reference Type BACKGROUND
PMID: 3780244 (View on PubMed)

Heyer L, Louis B, Isabey D, Lofaso F, Brochard L, Fredberg JJ, Harf A. Noninvasive estimate of work of breathing due to the endotracheal tube. Anesthesiology. 1996 Dec;85(6):1324-33. doi: 10.1097/00000542-199612000-00013.

Reference Type BACKGROUND
PMID: 8968179 (View on PubMed)

Glass C, Grap MJ, Sessler CN. Endotracheal tube narrowing after closed-system suctioning: prevalence and risk factors. Am J Crit Care. 1999 Mar;8(2):93-100.

Reference Type BACKGROUND
PMID: 10071699 (View on PubMed)

Shah C, Kollef MH. Endotracheal tube intraluminal volume loss among mechanically ventilated patients. Crit Care Med. 2004 Jan;32(1):120-5. doi: 10.1097/01.CCM.0000104205.96219.D6.

Reference Type BACKGROUND
PMID: 14707569 (View on PubMed)

Boque MC, Gualis B, Sandiumenge A, Rello J. Endotracheal tube intraluminal diameter narrowing after mechanical ventilation: use of acoustic reflectometry. Intensive Care Med. 2004 Dec;30(12):2204-9. doi: 10.1007/s00134-004-2465-4. Epub 2004 Oct 2.

Reference Type BACKGROUND
PMID: 15580475 (View on PubMed)

Villafane MC, Cinnella G, Lofaso F, Isabey D, Harf A, Lemaire F, Brochard L. Gradual reduction of endotracheal tube diameter during mechanical ventilation via different humidification devices. Anesthesiology. 1996 Dec;85(6):1341-9. doi: 10.1097/00000542-199612000-00015.

Reference Type BACKGROUND
PMID: 8968181 (View on PubMed)

Berra L, Coppadoro A, Bittner EA, Kolobow T, Laquerriere P, Pohlmann JR, Bramati S, Moss J, Pesenti A. A clinical assessment of the Mucus Shaver: a device to keep the endotracheal tube free from secretions. Crit Care Med. 2012 Jan;40(1):119-24. doi: 10.1097/CCM.0b013e31822e9fe3.

Reference Type BACKGROUND
PMID: 21926595 (View on PubMed)

Stone RH, Bricknell SS. Experience with a new device for clearing mucus from the endotracheal tube. Respir Care. 2011 Apr;56(4):520-2. doi: 10.4187/respcare.00642. Epub 2011 Jan 21.

Reference Type BACKGROUND
PMID: 21255488 (View on PubMed)

Inglis TJ, Millar MR, Jones JG, Robinson DA. Tracheal tube biofilm as a source of bacterial colonization of the lung. J Clin Microbiol. 1989 Sep;27(9):2014-8. doi: 10.1128/jcm.27.9.2014-2018.1989.

Reference Type BACKGROUND
PMID: 2778064 (View on PubMed)

Wilson AM, Gray DM, Thomas JG. Increases in endotracheal tube resistance are unpredictable relative to duration of intubation. Chest. 2009 Oct;136(4):1006-1013. doi: 10.1378/chest.08-1938. Epub 2009 May 1.

Reference Type BACKGROUND
PMID: 19411293 (View on PubMed)

Berra L, Curto F, Li Bassi G, Laquerriere P, Baccarelli A, Kolobow T. Antibacterial-coated tracheal tubes cleaned with the Mucus Shaver : a novel method to retain long-term bactericidal activity of coated tracheal tubes. Intensive Care Med. 2006 Jun;32(6):888-93. doi: 10.1007/s00134-006-0125-6. Epub 2006 Apr 19.

Reference Type BACKGROUND
PMID: 16601964 (View on PubMed)

Kolobow T, Berra L, Li Bassi G, Curto F. Novel system for complete removal of secretions within the endotracheal tube: the Mucus Shaver. Anesthesiology. 2005 May;102(5):1063-5. doi: 10.1097/00000542-200505000-00028. No abstract available.

Reference Type BACKGROUND
PMID: 15851896 (View on PubMed)

Other Identifiers

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MGH-ETT cleaning

Identifier Type: -

Identifier Source: org_study_id