Home-Based Respiratory Muscle Training and Aerobic Exercise Programs to Improve Lung Health in Current and Former Cigarette Smokers
Effects of Respiratory Muscle Training and Aerobic Exercise on Lung Health in Smokers: A Pilot Parallel-Group Study for Lung Cancer Prevention
2 other identifiers
interventional
200
1 country
1
Brief Summary
This clinical trial studies whether home-based respiratory muscle training (RMT) and aerobic exercise (AE) programs can be used to improve lung health in current and former cigarette smokers. Lung cancer, the leading cause of cancer death, is overwhelmingly caused by exposure to cigarette smoke. Research suggests that daily activity reduces lung cancer risk in current and former smokers. However, current and former smokers are generally not active and new approaches to improve lung health are needed. During the home-based RMT program, participants use a handheld device to complete breathing exercise sessions consisting of breathing in and out against adjustable resistance. During the home-based AE program, participants complete aerobic exercises using a stationary bike working at a moderate workload against adjustable resistance. The home-based RMT and AE programs may be effective ways to strengthen the breathing muscles, which may improve lung health in current and former cigarette smokers.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started May 2026
Typical duration for not_applicable
1 active site
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
April 1, 2026
CompletedFirst Posted
Study publicly available on registry
April 28, 2026
CompletedStudy Start
First participant enrolled
May 1, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2029
ExpectedStudy Completion
Last participant's last visit for all outcomes
May 1, 2029
April 28, 2026
April 1, 2026
3 years
April 1, 2026
April 20, 2026
Conditions
Outcome Measures
Primary Outcomes (5)
Compliance rate (Feasibility)
The primary objective is in the feasibility of conducting the respiratory muscle training (RMT) and aerobic exercise (AE) intervention relative to the sham control. In the RMT group, overall compliance (e.g., compliant at all time points) will be estimated using 90% confidence intervals (CIs) obtained Clopper-Pearson method. The lower bounds will define a plausible lower limit for true (unobserved) compliance rates. Additionally, compliance status will be modeled as a function of time (e.g., week), and pre-specified exogenous factors using a generalized estimating equation logistic regression model (autoregressive covariance structure). Estimates of compliance rates will be obtained by time-point and tests about the appropriate contrasts of model estimates will be used to determine if there is a time trend.
Up to 12 weeks
Adherence rate (Feasibility)
The primary objective is in the feasibility of conducting the RMT and AE intervention relative to the sham control. In the RMT group, overall adherence (complete ≥ 70% of sessions) rates will be estimated using 90% CIs obtained Clopper-Pearson method. The lower bounds will define a plausible lower limit for true (unobserved) adherence rates.
Up to 12 weeks
Assessing inspiratory and expiratory muscle strength
Participants will complete 3 sets of 15 breaths, 5 days/week using commercially available Power Lung. resistance will be increased 5-10% every week . Participants will rate and log their effort
At baseline, 6 weeks, and 12 weeks
change in St. George Respiratory Questionnaire (SGRQ)
The SGRQ comprises of 50 items and consists of two parts. Scores range from 0-100, with higher scores indicating worse quality of life.
At baseline, 6 weeks, and 12 weeks
Functional capacity
Measured by the 6-Minute Walk Test. Will be summarized at pre-, 6-week and post-intervention timepoints, regardless of treatment regimen, using the appropriate descriptive statistics and graphically summarized. The outcome will be analyzed using a linear mixed model, with the intervention arms and time points as predictors. Baseline measurements will be included as a covariate to adjust for initial differences. Both within-and between-group comparisons will be conducted using appropriate contrasts. The primary comparisons will focus on between-arm differences at the 12-week post-intervention time point. Comparisons at the 6-week and 3-month follow-up visits will be secondary and will only be performed if the primary comparison for the corresponding endpoint reaches statistical significance. For cohort A, Bonferroni's correction will be applied to adjust for three pairwise comparisons.
At baseline, 6 weeks, and 12 weeks
Secondary Outcomes (7)
Lower extremity strength
At baseline and 12 weeks
Physical performance
At baseline and 12 weeks
Physical activity levels
Up to 12 weeks
Patient-reported outcomes on Fatigue
At baseline and 12 weeks
High-sensitivity C-reactive protein
At baseline and 12 weeks
- +2 more secondary outcomes
Study Arms (5)
Cohort A Arm I (RMT)
EXPERIMENTALParticipants complete RMT sessions via the Power Lung device over 20-30 minutes each consisting of three sets of 15 breaths at a gradual increase in resistance, 5 days a week, for 12 weeks in the absence of unacceptable toxicity. Participants also receive a virtually supervised session/call QW to provide support, enhance safety, and promote training compliance on study. Additionally, patients undergo blood, nasal swab, exhaled breath, and urine sample collection on study.
Cohort A Arm II (AE)
EXPERIMENTALParticipants complete tailored intensity AE cycling sessions progressing to over 30 minutes each, 5 days a week, for 12 weeks in the absence of unacceptable toxicity. Participants also receive a virtually supervised session/call QW to provide support, enhance safety, and promote training compliance on study. Additionally, patients undergo blood, nasal swab, exhaled breath, and urine sample collection on study.
Cohort A Arm III (AE and RMT education)
ACTIVE COMPARATORParticipants receive education on AE and RMT including recommendations aligned with current guidelines 5 days a week for 12 weeks. Additionally, patients undergo blood, nasal swab, exhaled breath, and urine sample collection on study.
Cohort B Arm IV (RMT)
EXPERIMENTALParticipants complete RMT sessions as in arm I for 12 weeks in the absence of unacceptable toxicity. Participants also receive a virtually supervised session/call QW to provide support, enhance safety, and promote training compliance on study. Additionally, patients undergo blood, nasal swab, exhaled breath, and urine sample collection on study.
Cohort B Arm V (AE and RMT education)
ACTIVE COMPARATORParticipants receive education on AE and RMT as in arm III on study. Additionally, patients undergo blood, nasal swab, exhaled breath, and urine sample collection on study.
Interventions
Ancillary studies
Complete tailored intensity AE cycling sessions
Undergo blood, nasal swab, exhaled breath, and urine sample collection
Receive AE and RMT education
Ancillary studies
Ancillary studies
Complete RMT sessions
Receive virtually supervised session/call
Ancillary studies
Eligibility Criteria
You may qualify if:
- Age ≥ 50 years old
- Current smoker with a ≥ 20-pack-years history
- Former smoker within the past 15 years, with a history of ≥ 20 pack-years (CT scan cohort only)
- Participant must be able to speak, read and comprehend English language
- Cognitively capable of following direction and performing the intervention
- Understand the investigational nature of this study and sign an Independent Ethics Committee/Institutional Review Board approved written informed consent form prior to receiving any study related procedure
You may not qualify if:
- Any previous lung cancer diagnoses and or undergoing treatment for any cancer
- Recent pneumonia, bronchitis, or other inflammatory conditions in the lungs, including but limited to chronic obstructive pulmonary disease (COPD) and/or asthma exacerbation within the previous 6 months
- Have uncontrolled intercurrent illness including, but not limited to, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, heart failure or psychiatric illness/social situations that would limit compliance with study requirements
- Unwilling or unable to follow protocol requirements
- Any condition which in the investigator's opinion deems the participant an unsuitable candidate to receive study intervention
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Roswell Park Cancer Institute
Buffalo, New York, 14263, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Andrew D Ray
Roswell Park Cancer Institute
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
April 1, 2026
First Posted
April 28, 2026
Study Start
May 1, 2026
Primary Completion (Estimated)
May 1, 2029
Study Completion (Estimated)
May 1, 2029
Last Updated
April 28, 2026
Record last verified: 2026-04