NCT03154762

Brief Summary

INTRODUCTION: Asthma is a disease characterized by inflammation of the airway and secondary contraction of smooth muscle. Treatment for the crisis consist in the use of local and / or systemic bronchodilators and anti-inflammatories, and it has been shown that mechanical ventilation to the airway through non-invasive positive pressure ventilation (NIPPV) decreases bronchial hyperreactivity and contractility of smooth muscle. OBJECTIVES: To assess the effect of nocturnal NIPPV on local inflammation, systemic inflammation and the state of hypersensitivity in patients with asthma attack. MATERIALS AND METHODS: We will include patients with severe asthma attacks requiring hospitalization, without indication for acute NIPPV, and will be randomized to receive NIPPV with an spontaneous (S) bilevel or continuous positive airway pressure (CPAP, control group), all patients will receive standard treatment; gasometric exchange, local inflammation (FEV1 and Exhaled fraction of nitric oxide), systemic inflammation (C reactive protein, IL-4, IL-5, IL-13 and IL-17 in peripheral blood) and the hypersensitivity state (eosinophilia and IgE) between both groups will be compared after 4 days of treatment.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jun 2017

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 11, 2017

Completed
5 days until next milestone

First Posted

Study publicly available on registry

May 16, 2017

Completed
16 days until next milestone

Study Start

First participant enrolled

June 1, 2017

Completed
5 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 31, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

October 31, 2017

Completed
Last Updated

August 28, 2019

Status Verified

August 1, 2019

Enrollment Period

5 months

First QC Date

May 11, 2017

Last Update Submit

August 22, 2019

Conditions

Outcome Measures

Primary Outcomes (1)

  • Systemic Inflammation

    To evaluate the effect of NIPPV on C reactive protein in patients with asthma attacks.

    4 days

Secondary Outcomes (5)

  • Hospitalization

    4 days

  • Adherence

    4 days

  • Gas Exchange

    4 days

  • Local Inflammation

    4 days

  • Serum Inflammation

    4 days.

Study Arms (2)

NIPPV

EXPERIMENTAL

Patients will receive NIPPV with an S bilevel device during 4 nights, the equipment will be placed ad libitum, a 12 cmH2O inspiratory pressure and a 4 cmH2O expiratory pressure will be administered through a nasal mask. CRP, FEV1, exhaled fraction of nitric oxide, IL-4, IL-5, IL-13, IL-17, IgE, cell count will be measured before and after intervention.

Device: NIPPV

CPAP

SHAM COMPARATOR

Patients will receive a 4 cmH2O continuous positive airway pressure device during 4 nights; this is the minimum pressure necessary to avoid death space with no effect on minute ventilation. The equipment will be placed ad libitum. Pressure will be administered through a nasal mask. CRP, FEV1, exhaled fraction of nitric oxide, IL-4, IL-5, IL-13, IL-17, IgE, cell count will be measured before and after sham intervention.

Device: CPAP

Interventions

NIPPVDEVICE

Application of chronic distension of the airway through NIPPV to produce a reduction in bronchial hyperreactivity.

Also known as: bilevel
NIPPV
CPAPDEVICE

4 cmH2O CPAP as the minimum pressure necessary to mobilize the air flow and avoid the space death with no effect on the ventilation.

CPAP

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Diagnosis of asthma, performed by a physician, with spirometry and stable treatment for at least 3 previous months.
  • Severe asthma crisis and hospitalization requirement of at least 4 days.

You may not qualify if:

  • Life-threatening crisis.
  • Requirement of Invasive or Non-Invasive Mechanical Ventilation.
  • High risk for Obstructive Sleep Apnea (measured through the Berlin questionnaire).
  • Active smoking.
  • Another chronic lung disease other than asthma.
  • Pneumonia (defined by the presence of an opacity of the lung parenchyma on a chest x-ray).
  • Ischemic heart disease.
  • Uncontrolled systemic arterial hypertension.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Instituto Nacional de Enfermedades Respiratorias

Mexico City, 14080, Mexico

Location

Related Publications (3)

  • Lafond C, Series F, Lemiere C. Impact of CPAP on asthmatic patients with obstructive sleep apnoea. Eur Respir J. 2007 Feb;29(2):307-11. doi: 10.1183/09031936.00059706. Epub 2006 Oct 18.

  • Xue Z, Yu Y, Gao H, Gunst SJ, Tepper RS. Chronic continuous positive airway pressure (CPAP) reduces airway reactivity in vivo in an allergen-induced rabbit model of asthma. J Appl Physiol (1985). 2011 Aug;111(2):353-7. doi: 10.1152/japplphysiol.01345.2010. Epub 2011 Apr 14.

  • Salerno FG, Pellegrino R, Trocchio G, Spanevello A, Brusasco V, Crimi E. Attenuation of induced bronchoconstriction in healthy subjects: effects of breathing depth. J Appl Physiol (1985). 2005 Mar;98(3):817-21. doi: 10.1152/japplphysiol.00763.2004. Epub 2004 Oct 8.

MeSH Terms

Interventions

Continuous Positive Airway Pressure

Intervention Hierarchy (Ancestors)

Positive-Pressure RespirationRespiration, ArtificialAirway ManagementTherapeuticsRespiratory Therapy

Study Officials

  • Jose Luis Carrillo Alduenda

    Instituto Nacional de Enfermedades Respiratorias

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, INVESTIGATOR
Masking Details
Similar equipment will be used, the programming of the positive pressure device will be performed by an external person and a cover will be placed on the screen.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Experimental, prospective, longitudinal, comparative, parallel group study
Sponsor Type
OTHER GOV
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
MD

Study Record Dates

First Submitted

May 11, 2017

First Posted

May 16, 2017

Study Start

June 1, 2017

Primary Completion

October 31, 2017

Study Completion

October 31, 2017

Last Updated

August 28, 2019

Record last verified: 2019-08

Data Sharing

IPD Sharing
Will share

Through this organization and will be provided at the individual request of each interested researcher.

Locations