Utility of At-home Monitoring of Exercise Capacity by App-based 6-minute Walk Test

NCT ID: NCT03893500

Last Updated: 2024-05-03

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Clinical Phase

NA

Total Enrollment

63 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-07-01

Study Completion Date

2025-06-30

Brief Summary

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* Evaluate for accuracy and reproducibility of data collected via the participant-operated Walk.Talk.Track. (WTT) app combined with Apple Watch during in-clinic, technician proctored 6MWT's.

* Determine whether the WTT app on the Apple Watch can accurately collect information on distance traveled and heart rate (HR) during in-clinic 6MWT run by American Thoracic Society (ATS) guidelines
* Determine whether participants can operate the WTT app and Apple Watch effectively to gather accurate data in a monitored and home-based setting
* Prospectively monitor for changes in WTT app recorded 6MWT results following initiation of therapy in a treatment naïve cohort of PAH participants

* Evaluate whether changes from baseline in 6 minute walk distance (6MWD) and heart rate recovery at one minute (HRR1) as well as other variables that have been associated with disease severity in PAH and left-sided heart disease (resting HR, heart rate variability \[HRV\], chronotropic index \[CI\]) can be identified before the 12-week follow up when comparing the treatment arm and the control arm
* Evaluate whether changes from baseline in the HRR1, resting HR, HRV and/or CI are more evident in treatment responders when compared to treatment non-responders.

Detailed Description

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Conditions

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Pulmonary Arterial Hypertension

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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Initiating a new PAH medication

Participants will start a new PAH medication

Group Type EXPERIMENTAL

Home-based 6 minute walk test

Intervention Type DEVICE

Participants will receive a loaner Apple Watch with the Walk.Talk.Track. (WTT, produced by PHaware) app downloaded. Participants will perform a daily 6MWT at home using the Apple Watch and WTT app. They will undergo a history and physical, blood draw, echocardiogram and in-clinic 6MWT at the baseline and 12-week follow up visit.

Continuing previous PAH medication regimen

Participants will continue the medication regimen that they were on prior to enrollment

Group Type ACTIVE_COMPARATOR

Home-based 6 minute walk test

Intervention Type DEVICE

Participants will receive a loaner Apple Watch with the Walk.Talk.Track. (WTT, produced by PHaware) app downloaded. Participants will perform a daily 6MWT at home using the Apple Watch and WTT app. They will undergo a history and physical, blood draw, echocardiogram and in-clinic 6MWT at the baseline and 12-week follow up visit.

Interventions

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Home-based 6 minute walk test

Participants will receive a loaner Apple Watch with the Walk.Talk.Track. (WTT, produced by PHaware) app downloaded. Participants will perform a daily 6MWT at home using the Apple Watch and WTT app. They will undergo a history and physical, blood draw, echocardiogram and in-clinic 6MWT at the baseline and 12-week follow up visit.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Diagnosis of WHO Group I Pulmonary Arterial Hypertension (PAH) (Idiopathic (I)PAH, Heritable PAH (including Hereditary Hemorrhagic Telangiectasia), Associated (A)PAH (including collagen vascular disorders, drugs+toxins exposure, congenital heart disease, and portopulmonary disease).

Exclusion Criteria

* Pulmonary Hypertension due to left heart disease (PH-LHD, WHO group 2), Pulmonary hypertension due to chronic lung disease (PH-CLD, WHO group 3), Chronic thrombo-embolic pulmonary hypertension (CTEPH, WHO group 4), pulmonary hypertension with unclear and/or multi-factorial mechanisms (WHO goup 5)
* Inability to perform a 6 minute walk test (6MWT)
Minimum Eligible Age

18 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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PHaware

UNKNOWN

Sponsor Role collaborator

Stanford University

OTHER

Sponsor Role lead

Responsible Party

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Roham T. Zamanian

Associate Professor of Medicine

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Stanford University

Stanford, California, United States

Site Status

Countries

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United States

References

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Reference Type BACKGROUND
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Reference Type BACKGROUND
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Reference Type BACKGROUND
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Related Links

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Other Identifiers

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IRB-48742

Identifier Type: OTHER

Identifier Source: secondary_id

SU-DynAMITE

Identifier Type: -

Identifier Source: org_study_id

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