NCT05633017

Brief Summary

This study will determine the dyspnea response in chronic lung disease volunteers during treadmill walking with and without added inspiratory resistance. This study will also determine the level of dyspnea and exercise sense of effort in individuals walking on a treadmill when elevations occur. Comparisons will be made of a participant's exercise response with and without increased inspiratory resistance. In this study, exercise performance will be analyzed based on physiological and perceptual measures. The participant will undergo two sessions: one session will be a standard exercise walking test without an inspiratory resistance; the other session will be the same standard exercise walking test while breathing with an inspiratory resistance equal to a N95 facemask (R=10-15 cmH2O/L/sec). Performance will be determined by physiological measures. Perception will be determined by scores based on numerical scales and automatically with the forehead Vitality remote monitoring sensor.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
52

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Nov 2022

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

November 21, 2022

Completed
8 days until next milestone

Study Start

First participant enrolled

November 29, 2022

Completed
2 days until next milestone

First Posted

Study publicly available on registry

December 1, 2022

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 17, 2023

Completed
9 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 17, 2024

Completed
Last Updated

October 15, 2025

Status Verified

October 1, 2025

Enrollment Period

1 year

First QC Date

November 21, 2022

Last Update Submit

October 13, 2025

Conditions

Outcome Measures

Primary Outcomes (1)

  • Correlation between dyspnea as measured by the device and reported dyspnea by subjects

    2 hours

Study Arms (2)

Pulmonary Rehab Patients

Patients who attend respiratory therapy at John Muir Pulmonary Rehab facility

Combination Product: CereVu Objective Dyspnea Score

Control

Healthy adults, 18+

Combination Product: CereVu Objective Dyspnea Score

Interventions

Small forehead wearable and mobile app

ControlPulmonary Rehab Patients

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients undergoing respiratory therapy at John Muir Health which encompasses a variety of pulmonary conditions

You may qualify if:

  • Former pulmonary rehabilitation patients that are now participating in maintenance exercise classes
  • Males and females with an age range of 18 years or older
  • Subjects must be able to walk on treadmill for multiple sessions

You may not qualify if:

  • The subjects in each experiment will be recruited for a distribution of gender, ethnicity and age

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

John Muir Health

Pleasant Hill, California, 94523, United States

Location

MeSH Terms

Conditions

Pulmonary Disease, Chronic Obstructive

Condition Hierarchy (Ancestors)

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

Study Officials

  • Alireza Akhbardeh, PhD

    CereVu Medical

    STUDY DIRECTOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

November 21, 2022

First Posted

December 1, 2022

Study Start

November 29, 2022

Primary Completion

December 17, 2023

Study Completion

September 17, 2024

Last Updated

October 15, 2025

Record last verified: 2025-10

Data Sharing

IPD Sharing
Will not share

Locations