Sepsis is life-threatening organ dysfunction caused by a dysregulated host response to infection. It is the most expensive healthcare condition to treat in United States and has a mortality rate of nearly 30%. It is widely known that exaggerated inflammation and imbalance between sympathetic and parasympathetic arms of the autonomic nervous system (ANS) contribute to progression and adverse outcomes in sepsis. The role of unchecked inflammation and unregulated ANS as a potential treatment target is an important gap in our knowledge that should be explored.
Cholinergic anti-inflammatory pathway (CAP) is an intricate network where the ANS senses inflammation by vagus nerve afferents and tries to regulate it by vagus nerve efferents to the reticuloendothelial system. The central hypothesis of this pilot clinical trial is that transcutaneous vagus nerve stimulation (TVNS) at tragus of the external ear can activate the CAP to suppress inflammation and improve autonomic imbalance as measured by inflammatory cytokine levels and heart rate variability (HRV) analysis. The investigators plan to randomize patients with septic shock into active and sham stimulation groups and study the effects of vagal stimulation on inflammatory cytokines, HRV and a clinical severity score of sepsis. Both groups will continue to receive the standard of care treatment for sepsis irrespective of group assignments. The investigators hypothesize that 4 hours of TVNS will suppress inflammatory markers and improve the balance between sympathetic and parasympathetic arms of ANS as measured by HRV, resulting in improved Sequential Organ Failure Assessment Score (SOFA). The preliminary data generated from this pilot study will lay the foundation for a larger clinical trial.
Condition or disease | Intervention/treatment | Phase |
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Septic Shock | Device: Low Level Transcutaneous Vagus Nerve Stimulation | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 34 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | Randomized controlled trial |
Masking: | Double (Participant, Outcomes Assessor) |
Masking Description: | Double blind |
Primary Purpose: | Treatment |
Official Title: | Neuromodulation to Regulate Inflammation and Autonomic Imbalance in Sepsis |
Estimated Study Start Date : | November 2020 |
Estimated Primary Completion Date : | June 2022 |
Estimated Study Completion Date : | June 2024 |
Arm | Intervention/treatment |
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Experimental: Active Treatment
Patients will receive a single 4-hour session of active transcutaneous vagus nerve stimulation.
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Device: Low Level Transcutaneous Vagus Nerve Stimulation
Stimulation of the auricular branch of the vagus nerve at tragus of the external ear delivered by Parasym device.
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Sham Comparator: Sham Control
Patients will receive a single 4-hour session of sham transcutaneous vagus nerve stimulation.
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Device: Low Level Transcutaneous Vagus Nerve Stimulation
Stimulation of the ear lobe delivered by Parasym device.
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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:
Septic shock (meeting severe sepsis and having persistent systolic blood pressure <90mmHg despite adequate fluid resuscitation).
Exclusion Criteria:
Contact: Houssein Youness, MD | 405-271-6173 | Houssein-Youness@ouhsc.edu | |
Contact: Zain Ul Abideen Asad, MD | 405-271-5963 | Zain-Asad@ouhsc.edu |
United States, Oklahoma | |
University of Oklahoma Health Sciences Center | Recruiting |
Oklahoma City, Oklahoma, United States, 73104 | |
Contact: Lauren Sinko, RN 405-271-6173 Lauren-A-Sinko@ouhsc.edu | |
Contact: Kassidy Malone, RN 4052716173 Kassidy-Malone@ouhsc.edu |
Principal Investigator: | Houssein Youness, MD | University of Oklahoma | |
Principal Investigator: | Zain Ul Abideen Asad, MD | University of Oklahoma |
Tracking Information | |||||||||
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First Submitted Date ICMJE | June 5, 2019 | ||||||||
First Posted Date ICMJE | June 20, 2019 | ||||||||
Last Update Posted Date | October 19, 2020 | ||||||||
Estimated Study Start Date ICMJE | November 2020 | ||||||||
Estimated Primary Completion Date | June 2022 (Final data collection date for primary outcome measure) | ||||||||
Current Primary Outcome Measures ICMJE |
Change in Inflammatory Cytokine Tumor Necrosis Factor Alpha [ Time Frame: Baseline to 4 hours and baseline to 24 hours post stimulation ] Serum inflammatory cytokine
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Original Primary Outcome Measures ICMJE | Same as current | ||||||||
Change History | |||||||||
Current Secondary Outcome Measures ICMJE |
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Original Secondary Outcome Measures ICMJE | Same as current | ||||||||
Current Other Pre-specified Outcome Measures | Not Provided | ||||||||
Original Other Pre-specified Outcome Measures | Not Provided | ||||||||
Descriptive Information | |||||||||
Brief Title ICMJE | Neuromodulation to Regulate Inflammation and Autonomic Imbalance in Sepsis | ||||||||
Official Title ICMJE | Neuromodulation to Regulate Inflammation and Autonomic Imbalance in Sepsis | ||||||||
Brief Summary |
Sepsis is life-threatening organ dysfunction caused by a dysregulated host response to infection. It is the most expensive healthcare condition to treat in United States and has a mortality rate of nearly 30%. It is widely known that exaggerated inflammation and imbalance between sympathetic and parasympathetic arms of the autonomic nervous system (ANS) contribute to progression and adverse outcomes in sepsis. The role of unchecked inflammation and unregulated ANS as a potential treatment target is an important gap in our knowledge that should be explored. Cholinergic anti-inflammatory pathway (CAP) is an intricate network where the ANS senses inflammation by vagus nerve afferents and tries to regulate it by vagus nerve efferents to the reticuloendothelial system. The central hypothesis of this pilot clinical trial is that transcutaneous vagus nerve stimulation (TVNS) at tragus of the external ear can activate the CAP to suppress inflammation and improve autonomic imbalance as measured by inflammatory cytokine levels and heart rate variability (HRV) analysis. The investigators plan to randomize patients with septic shock into active and sham stimulation groups and study the effects of vagal stimulation on inflammatory cytokines, HRV and a clinical severity score of sepsis. Both groups will continue to receive the standard of care treatment for sepsis irrespective of group assignments. The investigators hypothesize that 4 hours of TVNS will suppress inflammatory markers and improve the balance between sympathetic and parasympathetic arms of ANS as measured by HRV, resulting in improved Sequential Organ Failure Assessment Score (SOFA). The preliminary data generated from this pilot study will lay the foundation for a larger clinical trial. |
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Detailed Description | Not Provided | ||||||||
Study Type ICMJE | Interventional | ||||||||
Study Phase ICMJE | Not Applicable | ||||||||
Study Design ICMJE | Allocation: Randomized Intervention Model: Parallel Assignment Intervention Model Description: Randomized controlled trial Masking: Double (Participant, Outcomes Assessor)Masking Description: Double blind Primary Purpose: Treatment
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Condition ICMJE | Septic Shock | ||||||||
Intervention ICMJE |
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Study Arms ICMJE |
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Publications * | Not Provided | ||||||||
* Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline. |
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Recruitment Information | |||||||||
Recruitment Status ICMJE | Recruiting | ||||||||
Estimated Enrollment ICMJE |
34 | ||||||||
Original Estimated Enrollment ICMJE | Same as current | ||||||||
Estimated Study Completion Date ICMJE | June 2024 | ||||||||
Estimated Primary Completion Date | June 2022 (Final data collection date for primary outcome measure) | ||||||||
Eligibility Criteria ICMJE |
Inclusion Criteria: Septic shock (meeting severe sepsis and having persistent systolic blood pressure <90mmHg despite adequate fluid resuscitation). Exclusion Criteria:
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Sex/Gender ICMJE |
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Ages ICMJE | 18 Years and older (Adult, Older Adult) | ||||||||
Accepts Healthy Volunteers ICMJE | No | ||||||||
Contacts ICMJE |
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Listed Location Countries ICMJE | United States | ||||||||
Removed Location Countries | |||||||||
Administrative Information | |||||||||
NCT Number ICMJE | NCT03992378 | ||||||||
Other Study ID Numbers ICMJE | 9227 | ||||||||
Has Data Monitoring Committee | Yes | ||||||||
U.S. FDA-regulated Product |
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IPD Sharing Statement ICMJE | Not Provided | ||||||||
Responsible Party | University of Oklahoma | ||||||||
Study Sponsor ICMJE | University of Oklahoma | ||||||||
Collaborators ICMJE | Oklahoma City VA Medical Center | ||||||||
Investigators ICMJE |
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PRS Account | University of Oklahoma | ||||||||
Verification Date | October 2020 | ||||||||
ICMJE Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP |