NCT03959982

Brief Summary

Heated, humidified high-flow air (HHHFA) devices improve airway clearance. HHHFA use for an average of 1.6 hours a day in COPD patients with chronic bronchitis improves health-related quality of life, lung function, and delays the first respiratory exacerbation. However, HHHFA for an average of 1.6 hours a day had no effect on COPD exacerbation frequency or hospitalization, dyspnea, or exercise capacity, likely due to short duration of the treatment. Conversely, the effect of HHHFA for longer time periods on chronic bronchitis patients has not been studied. Moreover, the effect of HHHFA on sleep quality has not been studied. A prior study in COPD patients showed that use of HHHFA for more than 7 hours during sleep can be achieved. The overall objective of this research is to examine the effect of HHHFA during sleep on COPD patients with chronic bronchitis. In this pilot study, the study team will examine the effect of HHHFA during sleep on clinically relevant short-term outcomes including: respiratory symptoms, quality of life and sleep, lung function and exercise capacity. Subjects will be recruited and consented. Once a subject agrees to be in the study the baseline visit will occur. The first test will be the Pulmonary Function testing. If the subject qualifies based on the PFT's they will complete the remainder of the baseline visit. During this visit subjects will complete questionnaires, have a physical, 6 minute walk test and CT scan. Subjects will receive device training on the heated, humidified high-flow air device. Subjects will have a followup call between 3-7 days to check in on how the subject is doing with the device. After 6 weeks the subject will return for another round of testing as was done at baseline. This will be the final study visit.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
11

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Feb 2021

Typical duration 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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 17, 2019

Completed
5 days until next milestone

First Posted

Study publicly available on registry

May 22, 2019

Completed
1.8 years until next milestone

Study Start

First participant enrolled

February 24, 2021

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 5, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 5, 2022

Completed
1.8 years until next milestone

Results Posted

Study results publicly available

September 19, 2024

Completed
Last Updated

September 19, 2024

Status Verified

August 1, 2024

Enrollment Period

1.8 years

First QC Date

May 17, 2019

Results QC Date

July 16, 2024

Last Update Submit

August 12, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Sleep Quality Using the PSQI Questionnaire

    Pittsburgh Sleep Quality Index (PSQI) Questionnaires will be done at baseline and completion of study. This questionnaire will be used to collect information regarding the subject's usual sleep habits during the past month. PSQI: Pittsburgh Sleep Quality Index ranges from 0 to 21 with highest scores indicating worse sleep quality. Values presented here indicate the change between baseline and 6 weeks. Positive values indicate worse sleep quality at 6 weeks.

    Baseline and 6 weeks

Secondary Outcomes (2)

  • 6 Minute Walk

    Baseline and 6 weeks

  • Health Related Quality of Life Change Using the CAT Questionnaire

    Baseline and 6 weeks

Study Arms (2)

HHHFA Randomized Group

EXPERIMENTAL

Subjects will be randomized to use the HHHFA device during bedtime for at least 4 hours. Subjects will complete MRC, SGRQ, CAT, CASA-Q and PSQI questionnaires. They will do spirometry, 6-minute walk, and CT scan. These interventions will be done at baseline and at the completion of their study (6 weeks). Spirehealth Device will be worn by subject daily for 12 weeks.

Device: HHHFA DeviceDiagnostic Test: SpirometryDiagnostic Test: 6-minute walkDiagnostic Test: CT scanOther: Medical Research Council dyspnea scale (MRC)Other: St. George's Respiratory Questionnaire (SGRQ)Other: COPD Assessment Test (CAT)Other: Pittsburgh Sleep Quality Index (PSQI)Other: CASA-QOther: Spirehealth Tag Device

Control Group

ACTIVE COMPARATOR

Subjects will complete MRC, SGRQ, CAT, and PSQI questionnaires. They will do spirometry, 6-minute walk, and CT scan. These interventions will be done at baseline and at the completion of their study (6 weeks). Spirehealth Device will be worn by subject daily for 12 weeks.

Diagnostic Test: SpirometryDiagnostic Test: 6-minute walkDiagnostic Test: CT scanOther: Medical Research Council dyspnea scale (MRC)Other: St. George's Respiratory Questionnaire (SGRQ)Other: COPD Assessment Test (CAT)Other: Pittsburgh Sleep Quality Index (PSQI)Other: CASA-QOther: Spirehealth Tag Device

Interventions

Participants will be instructed to use the HHHFA for at least 4 hours during their sleep but will be allowed to use it as long as they want during sleep.

HHHFA Randomized Group
SpirometryDIAGNOSTIC_TEST

Pre and post spirometry using albuterol.

Control GroupHHHFA Randomized Group
6-minute walkDIAGNOSTIC_TEST

6-minute walk

Control GroupHHHFA Randomized Group
CT scanDIAGNOSTIC_TEST

CT scan

Control GroupHHHFA Randomized Group

MRC questionnaire

Control GroupHHHFA Randomized Group

SGRQ questionnaire

Control GroupHHHFA Randomized Group

CAT questionnaire

Control GroupHHHFA Randomized Group

PSQI questionnaire

Control GroupHHHFA Randomized Group
CASA-QOTHER

CASA-Q questionnaire

Control GroupHHHFA Randomized Group

Subjects will wear the Spirehealth Tag Device to measure heart rate, respiratory rate, sleep time, physical activity (movement), and calories burned with activity.

Control GroupHHHFA Randomized Group

Eligibility Criteria

Age18 Years - 100 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • COPD diagnosis by health care provider
  • Post-bronchodilator FEV1/FVC \<0.7
  • Post-bronchodilator FEV1%predicted \<70%
  • Chronic bronchitis, defined as chronic cough with daily sputum production
  • ≥2 COPD exacerbations within the last year
  • Smart phone

You may not qualify if:

  • Obstructive sleep apnea and using positive airway pressure treatment
  • Patients that use oxygen supplementation continuously (patients that use oxygen supplementation only at exertion will NOT be excluded)
  • Any planned procedure that the PI believes would cause the subject to be ineligible.
  • Unable to perform a spirometry, 6-minute walk test or chest CT
  • Recent diagnosis (\<4 weeks prior to study entry) of pneumonia, respiratory infection, COPD exacerbation, or acute bronchitis requiring antibiotics and new/increased dose of systemic corticosteroids
  • Thoracic surgery or another procedure in the last six months that may result in instability of pulmonary status
  • Recent medical or surgical history of upper airway disease that may interfere with intervention (e.g., sinus surgery, significant nasal polyps)
  • Recent chest illness (trauma, pneumothorax etc).
  • Basal skull surgery in the last 6 months
  • Open skin ulcer or rash where the nasal cannula will be worn
  • Tracheostomy or laryngectomy
  • Pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Iowa

Iowa City, Iowa, 52242, United States

Location

Related Publications (1)

  • Fortis S, Hoffman EA, Comellas AP. The Effect of Heated, Humidified High-Flow Air in COPD Patients With Chronic Bronchitis. Pulm Med. 2025 Dec 28;2025:8350741. doi: 10.1155/pm/8350741. eCollection 2025.

MeSH Terms

Conditions

Pulmonary Disease, Chronic Obstructive

Interventions

SpirometryWalkingTomography, X-Ray Computed

Condition Hierarchy (Ancestors)

Lung Diseases, ObstructiveLung DiseasesRespiratory Tract DiseasesChronic DiseaseDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Intervention Hierarchy (Ancestors)

Respiratory Function TestsDiagnostic Techniques, Respiratory SystemDiagnostic Techniques and ProceduresDiagnosisLocomotionMovementMusculoskeletal Physiological PhenomenaMusculoskeletal and Neural Physiological PhenomenaExerciseMotor ActivityImage Interpretation, Computer-AssistedDiagnostic ImagingRadiographic Image EnhancementImage EnhancementPhotographyRadiographyTomography, X-RayTomography

Results Point of Contact

Title
Dr. Spyridon Fortis
Organization
University of Iowa

Study Officials

  • Spyridon Fortis, MD

    University of Iowa

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Subjects will be randomized into two groups: One will receive the device and one will not. Study procedures will be the same for both groups.
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Pricipal Investigator

Study Record Dates

First Submitted

May 17, 2019

First Posted

May 22, 2019

Study Start

February 24, 2021

Primary Completion

December 5, 2022

Study Completion

December 5, 2022

Last Updated

September 19, 2024

Results First Posted

September 19, 2024

Record last verified: 2024-08

Data Sharing

IPD Sharing
Will not share

Locations