NCT02472561

Brief Summary

The purpose of this study is to understand the effects that a three month lifestyle-based mobile health (mHealth) peripheral artery disease (PAD) prevention program will have on improving physical activity, fitness, important PAD risk factors and quality of life (QOL) in patients with PAD. By testing a novel mHealth intervention focused on lifestyle modification, this trial will address a critical evidence gap in the care of PAD patients. PAD patients are not eligible for cardiac rehabilitation and therefore struggle with unhealthy lifestyles, and these patients currently have no lifestyle-based care strategies to help them. The results of this study have the potential to lead to new sustainable and resource-efficient, lifestyle-based preventive care strategies for patients with stable PAD.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
22

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jul 2015

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

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 10, 2015

Completed
6 days until next milestone

First Posted

Study publicly available on registry

June 16, 2015

Completed
15 days until next milestone

Study Start

First participant enrolled

July 1, 2015

Completed
2.4 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 7, 2017

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

November 7, 2017

Completed
Last Updated

February 5, 2018

Status Verified

January 1, 2018

Enrollment Period

2.4 years

First QC Date

June 10, 2015

Last Update Submit

January 31, 2018

Conditions

Keywords

CardiologyVascularPeripheral Artery DiseaseArteryMobile HealthExercisePAD

Outcome Measures

Primary Outcomes (1)

  • Change in cardiovascular fitness level measured by change score analysis of peak Volume of Oxygen (pVO2mL/kg/min) consumption measured during a cardiopulmonary exercise test (CPET).

    peak VO2 mL/kg/min

    Baseline and 12-week

Secondary Outcomes (10)

  • Feasibility of this novel mobile health treatment strategy, as measured by patient satisfaction survey

    12-week

  • Implementation of this novel mobile health treatment strategy, as measured by patient satisfaction

    12-week

  • Change in physical activity patterns (steps, time and distance)

    Baseline and 12-week

  • Change score analysis in Body Mass Index measurements

    Baseline and 12-week

  • Change score analysis in Blood Glucose measurements

    Baseline and 12-week

  • +5 more secondary outcomes

Study Arms (2)

Mobile Health Application Group 1

EXPERIMENTAL

Participants will wear a Fitbit Physical Activity Monitor to objectively quantify physical activity patterns. Once a week (± 3 days) during the 12 week mHealth intervention patients will measure and download their blood pressure and blood glucose (if diabetic) by means of a mHealth blood pressure cuff and mHealth glucometer. Medication adherence will be measured at baseline and 12-weeks by the Morisky Medication Adherence Scale-8 (MMAS-8) questionnaire. Each participant will be provided with a electronic version of the book titled, "Your COMPLETE and EASY GUIDE to Understanding Peripheral Artery Disease"; patients will be asked to read approximately one chapter per week for educational purposes.

Other: Fitbit Physical Activity MonitorOther: mHealth GlucometerOther: mHealth Blood Pressure

Usual Care Group 2

NO INTERVENTION

Participants will follow standard care as ordered by their individual, treating physician. Each participant will be given a paperback copy of the book, "Your COMPLETE and EASY GUIDE to Understanding Peripheral Artery Disease". All participants will be contacted by study personnel in order to schedule visits at baseline and 12-weeks for the outcome assessments.

Interventions

Physical Activity: The study team will provide an individualized goal of total number of steps to attain daily and will be monitored using a Fitbit activity tracker. The total daily step goal will be reviewed by study staff and modified at weeks 4 and 8.

Mobile Health Application Group 1

Blood Glucose: The participant will monitor their fasting blood glucose once per week by using an mHealth Glucometer and mobile app.

Also known as: Diabetics Only
Mobile Health Application Group 1

Blood Pressure: The participant will monitor their blood pressure once per week by using an mHealth Blood Pressure cuff and mobile app.

Mobile Health Application Group 1

Eligibility Criteria

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

You may qualify if:

  • Adequate clinical stability has been achieved in the judgment of the investigator to allow participation in study assessments and the intervention
  • A history of stable intermittent claudication for \>2 months, and an ABI \<0.9 at rest
  • No contraindications to exercise training
  • All subjects will be on the recommended regimen of statin and antiplatelet therapy
  • Signed informed consent document indicating that the patient understands the purpose of and procedures required for the study and is willing to participate in the study

You may not qualify if:

  • Present or a past history of gangrene, impending limb loss or osteomyelitis
  • Severe peripheral neuropathy
  • Any condition other than PAD that limits walking for example arthritis or chronic obstructive pulmonary disease (COPD)
  • Unstable angina, history of significant left main disease or three vessel coronary artery disease (\>70% stenosis, unprotected by grafts) or recent myocardial infarction (less than eight weeks)
  • Chest pain during treadmill exercise which appears before the onset of claudication, or 2 mm ST depression during exercise regardless of the results of tests for myocardial ischemia
  • Refusal or inability to give informed consent or inability or unwillingness to comply with the study requirements.
  • Dementia that precludes ability to participate in and follow study protocols
  • Enrollment in a clinical trial not approved for co-enrollment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Duke University Medical Center

Durham, North Carolina, 27705, United States

Location

MeSH Terms

Conditions

Peripheral Arterial DiseaseMotor Activity

Condition Hierarchy (Ancestors)

AtherosclerosisArteriosclerosisArterial Occlusive DiseasesVascular DiseasesCardiovascular DiseasesPeripheral Vascular DiseasesBehavior

Study Officials

  • Manesh R Patel, MD

    Duke University

    PRINCIPAL INVESTIGATOR

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

June 10, 2015

First Posted

June 16, 2015

Study Start

July 1, 2015

Primary Completion

November 7, 2017

Study Completion

November 7, 2017

Last Updated

February 5, 2018

Record last verified: 2018-01

Locations