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Capnometry-Assisted Breathing Training for COPD

Capnometry-Assisted Breathing Training for COPD

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03457103
Acronym
CATCH
Enrollment
31
Registered
2018-03-07
Start date
2015-06-16
Completion date
2019-08-02
Last updated
2021-08-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Obstructive Pulmonary Disease

Brief summary

Capnometry-Assisted Breathing Training for COPD (CATCH) is a behavioral intervention that aims to promote optimal, self-regulated, mindful breathing. A portable capnometer is used in-session to provide continuous visual feedback of Respiratory Rate (RR), End-Tidal Carbon Dioxide Tension (ETCO2), and breathing pattern. The tailored CATCH intervention will emphasize a slow, quiet, regular, nasal breathing pattern, as well as pursed lips breathing (PLB). CATCH is once weekly for 6 weeks, for a total of 6 sessions; each session is approximately 60 minutes long. The principal investigator will implement the CATCH intervention. The principal investigator will implement the CATCH intervention. Patients will use the Address Stress app on a smart phone or computer tablet as part of their home breathing exercises.

Interventions

DEVICECapnometry-Assisted Training for COPD to Slow the Breath (CATCH)

Tailored intervention emphasizing slow, quiet, regular nasal breathing pattern.

Patients in both treatment groups will participate in a 10 week (16-20 sessions) comprehensive PR program. The control group will receive the 10-Week PR program with traditional breathing training sessions (without biofeedback). The program comprises 2 or 3 exercise training sessions per week by physical therapists (each 1 hour duration).

Sponsors

NYU Langone Health
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Subject)

Eligibility

Sex/Gender
ALL
Age
40 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* over 40 years of age * has COPD documented in their electronic medical record, as defined by FEV1/FVC of \< 0.70 on pulmonary function testing (spirometry), or as shown on a chest CT * Can maintain oxygen saturation (SaO2) ≥ 90% on room air at rest * Is medically cleared to participate in NYULMC's outpatient pulmonary rehabilitation program * English speaking. Pregnant patients will not be enrolled in the study

Exclusion criteria

* Requires 24-hour supplemental oxygen * Has cognitive impairment as measured by ≤23/30 on the Mini Mental State Examination (MMSE) * Is actively being treated for lung cancer (E.g. with chemotherapy or upcoming surgery) * Has morbid obesity (BMI \> 40) * Is currently smoking * Has unstable cardiac disease defined by a history of a myocardial infarction in the past 3 months

Design outcomes

Primary

MeasureTime frame
Number of Participants With Adherence to Home Breathing ExercisesDay 1

Secondary

MeasureTime frameDescription
Difference in Mean Dyspnea Management Questionnaire Computer Adaptive Test (DMQ-CAT) Anxiety Score Between Pre and Post Intervention2 weeks pre intervention and 4 weeks post interventionThe DMQ-CAT Dyspnea Anxiety is a 14 item scale; each item is scored off a 7 point likert scale for a total range of 0 to 98 where higher scores correlate with higher anxiety
Mean Difference in Heart Rate Maximum Between Pre and Post Intervention0 weeks and 10 weeks
Difference in Mean 6MWT Distance Between Pre and Post InterventionWeek 0 and Week 10The six-minute walk test (6MWT) measures the distance an individual is able to walk over a total of six minutes on a hard, flat surface. The goal is for the individual to walk as far as possible in six minutes.
Mean Difference in Resting Respiratory Rate Between Pre and Post Intervention0 weeks and 10 weeks
Difference in Mean Score on St George's Respiratory Questionnaire (SGRQ) Between Pre and Post InterventionWeek 0 and Week 10Disease-specific instrument designed to measure impact on overall health, daily life, and perceived well-being in patients with obstructive airways disease. Scores range from 0 to 100, with higher scores indicating more limitations.
Difference in Mean PROMIS Fatigue Score Between Pre and Post Intervention0 weeks and 10 weeksPatient-Reported Outcomes Measurement Information System (PROMIS) Fatigue 7a questionnaire. Raw scores range from 7-35, with higher scores indicating higher levels of fatigue.

Countries

United States

Participant flow

Participants by arm

ArmCount
CATCH Group
A portable capnometer (CapnoTrainer, Better Physiology, Cheyenne, WY) will be used in-session to provide continuous visual feedback of RR, ETCO2, rhythm, and depth of breathing, and ratio of inspirations to expiration. CATCH will be once weekly for 6 weeks, for a total of 6 sessions; each session will be approximately 60 minutes duration. The principal investigator will implement the CATCH intervention Capnometry-Assisted Training for COPD to Slow the Breath (CATCH): Tailored intervention emphasizing slow, quiet, regular nasal breathing pattern. Pulmonary Rehabilitation (PR): Patients in both treatment groups will participate in a 10 week (16-20 sessions) comprehensive PR program. The control group will receive the 10-Week PR program with traditional breathing training sessions (without biofeedback). The program comprises 2 or 3 exercise training sessions per week by physical therapists (each 1 hour duration).
22
Control Group
Pulmonary Rehabilitation (PR). Patients in both treatment groups will participate in a 10-week (16 - 20 sessions) comprehensive PR program. Pulmonary Rehabilitation (PR): Patients in both treatment groups will participate in a 10 week (16-20 sessions) comprehensive PR program. The control group will receive the 10-Week PR program with traditional breathing training sessions (without biofeedback). The program comprises 2 or 3 exercise training sessions per week by physical therapists (each 1 hour duration).
9
Total31

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall Studyfinancial/ insurance issues11
Overall Studyillness/hospitalization42
Overall StudyLost to Follow-up21
Overall StudyWithdrawal by Subject12

Baseline characteristics

CharacteristicCATCH GroupTotalControl Group
Age, Continuous72.8 years
STANDARD_DEVIATION 10.45
72.1 years
STANDARD_DEVIATION 9.03
71.4 years
STANDARD_DEVIATION 7.62
Ethnicity (NIH/OMB)
Hispanic or Latino
3 Participants3 Participants0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
19 Participants28 Participants9 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
5 Participants7 Participants2 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants0 Participants0 Participants
Race (NIH/OMB)
White
17 Participants24 Participants7 Participants
Region of Enrollment
United States
22 Participants31 Participants9 Participants
Sex: Female, Male
Female
14 Participants18 Participants4 Participants
Sex: Female, Male
Male
8 Participants13 Participants5 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
0 / 220 / 9
other
Total, other adverse events
0 / 220 / 9
serious
Total, serious adverse events
0 / 220 / 9

Outcome results

Primary

Number of Participants With Adherence to Home Breathing Exercises

Time frame: Day 1

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
CATCH GroupNumber of Participants With Adherence to Home Breathing Exercises10 Participants
Control GroupNumber of Participants With Adherence to Home Breathing Exercises5 Participants
Secondary

Difference in Mean 6MWT Distance Between Pre and Post Intervention

The six-minute walk test (6MWT) measures the distance an individual is able to walk over a total of six minutes on a hard, flat surface. The goal is for the individual to walk as far as possible in six minutes.

Time frame: Week 0 and Week 10

ArmMeasureValue (MEAN)
CATCH GroupDifference in Mean 6MWT Distance Between Pre and Post Intervention39.37 meters
Control GroupDifference in Mean 6MWT Distance Between Pre and Post Intervention24.99 meters
Secondary

Difference in Mean Dyspnea Management Questionnaire Computer Adaptive Test (DMQ-CAT) Anxiety Score Between Pre and Post Intervention

The DMQ-CAT Dyspnea Anxiety is a 14 item scale; each item is scored off a 7 point likert scale for a total range of 0 to 98 where higher scores correlate with higher anxiety

Time frame: 2 weeks pre intervention and 4 weeks post intervention

Population: -3.16 (-8.89, 2.57)

ArmMeasureValue (MEAN)
CATCH GroupDifference in Mean Dyspnea Management Questionnaire Computer Adaptive Test (DMQ-CAT) Anxiety Score Between Pre and Post Intervention2.43 score on DMQ-CAT (Anxiety)
Control GroupDifference in Mean Dyspnea Management Questionnaire Computer Adaptive Test (DMQ-CAT) Anxiety Score Between Pre and Post Intervention-3.16 score on DMQ-CAT (Anxiety)
Secondary

Difference in Mean PROMIS Fatigue Score Between Pre and Post Intervention

Patient-Reported Outcomes Measurement Information System (PROMIS) Fatigue 7a questionnaire. Raw scores range from 7-35, with higher scores indicating higher levels of fatigue.

Time frame: 0 weeks and 10 weeks

ArmMeasureValue (MEAN)
CATCH GroupDifference in Mean PROMIS Fatigue Score Between Pre and Post Intervention-4.18 score on PROMIS questionnaire
Control GroupDifference in Mean PROMIS Fatigue Score Between Pre and Post Intervention5.2 score on PROMIS questionnaire
Secondary

Difference in Mean Score on St George's Respiratory Questionnaire (SGRQ) Between Pre and Post Intervention

Disease-specific instrument designed to measure impact on overall health, daily life, and perceived well-being in patients with obstructive airways disease. Scores range from 0 to 100, with higher scores indicating more limitations.

Time frame: Week 0 and Week 10

ArmMeasureValue (MEAN)
CATCH GroupDifference in Mean Score on St George's Respiratory Questionnaire (SGRQ) Between Pre and Post Intervention-11.76 score on SGRQ questionnaire
Control GroupDifference in Mean Score on St George's Respiratory Questionnaire (SGRQ) Between Pre and Post Intervention-9.96 score on SGRQ questionnaire
Secondary

Mean Difference in Heart Rate Maximum Between Pre and Post Intervention

Time frame: 0 weeks and 10 weeks

ArmMeasureValue (MEAN)
CATCH GroupMean Difference in Heart Rate Maximum Between Pre and Post Intervention6.2 beats per minute
Control GroupMean Difference in Heart Rate Maximum Between Pre and Post Intervention3 beats per minute
Secondary

Mean Difference in Resting Respiratory Rate Between Pre and Post Intervention

Time frame: 0 weeks and 10 weeks

ArmMeasureValue (MEAN)
CATCH GroupMean Difference in Resting Respiratory Rate Between Pre and Post Intervention-2.75 Breaths per minute
Control GroupMean Difference in Resting Respiratory Rate Between Pre and Post Intervention-4.2 Breaths per minute

Source: ClinicalTrials.gov · Data processed: Feb 10, 2026