- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03048890
VascTrac Peripheral Arterial Disease (PAD) Study (VascTrac)
November 2, 2022 updated by: Oliver Aalami, Palo Alto Veterans Institute for Research
VascTrac PAD ResearchKit Study
VascTrac is a mobile medical application that tracks users' physical activity levels in order to predict endovascular failure of patients with Peripheral Artery Disease.
Study Overview
Status
Recruiting
Intervention / Treatment
Detailed Description
VascTrac uses open-source software from Apple's ResearchKit to passively track physical activity levels of users who sign up.
The goal is to predict post-intervention endovascular failure before it occurs.
Currently, physicians have no way of knowing when procedures such as angioplasties fail; with VascTrac, researchers hope to find downward trends in physical activity that will predict and indicate endovascular failure.
All users are assigned numbers and their medical data is securely coded, decreasing the risk of promulgation of personal information.
Study Type
Observational
Enrollment (Anticipated)
2000
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Oliver O Aalami, MD
- Phone Number: 650-852-3451
- Email: aalami@stanford.edu
Study Locations
-
-
California
-
Palo Alto, California, United States, 94304
- Recruiting
- VA Palo Alto Health Care System
-
Contact:
- Oliver Aalami, MD
- Phone Number: 63675 650-493-5000
- Email: aalami@stanford.edu
-
Sub-Investigator:
- Oliver O Aalami, M.D.
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years and older (ADULT, OLDER_ADULT)
Accepts Healthy Volunteers
Yes
Genders Eligible for Study
All
Sampling Method
Non-Probability Sample
Study Population
All adults with an iPhone 5s or higher who can read English
Description
Inclusion Criteria:
- adult, has iPhone 5s, can read English
Exclusion Criteria:
- under 18 years
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Patients with PAD
Patients with PAD will be in 1 cohort and will have their physical activity levels closely monitored by researchers and physicians.
|
Patients with severely low physical activity levels will be notified to consult their physician.
|
Patients without PAD
Patients without PAD will be allowed to contribute their data to the application, but they will not be as closely monitored.
|
Patients with severely low physical activity levels will be notified to consult their physician.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Physical Activity
Time Frame: Two Years
|
Participants will have their physical activity measured and recorded by the devices in Apple's Health application.
|
Two Years
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
General Publications
- Cunningham MA, Swanson V, Pappas E, O'Carroll RE, Holdsworth RJ. Illness beliefs and walking behavior after revascularization for intermittent claudication: a qualitative study. J Cardiopulm Rehabil Prev. 2014 May-Jun;34(3):195-201. doi: 10.1097/HCR.0000000000000046.
- Carter T, O'Neill S, Johns N, Brady RR. Contemporary vascular smartphone medical applications. Ann Vasc Surg. 2013 Aug;27(6):804-9. doi: 10.1016/j.avsg.2012.10.013. Epub 2013 Mar 25.
- Coughlin PA, Kent PJ, Turton EP, Byrne P, Berridge DC, Scott DJ, Kester RC. A new device for the measurement of disease severity in patients with intermittent claudication. Eur J Vasc Endovasc Surg. 2001 Dec;22(6):516-22. doi: 10.1053/ejvs.2001.1528.
- Gernigon M, Le Faucheur A, Fradin D, Noury-Desvaux B, Landron C, Mahe G, Abraham P. Global positioning system use in the community to evaluate improvements in walking after revascularization: a prospective multicenter study with 6-month follow-up in patients with peripheral arterial disease. Medicine (Baltimore). 2015 May;94(18):e838. doi: 10.1097/MD.0000000000000838.
- Afaq A, Patel JH, Gardner AW, Hennebry TA. Predictors of change in walking distance in patients with peripheral arterial disease undergoing endovascular intervention. Clin Cardiol. 2009 Sep;32(9):E7-11. doi: 10.1002/clc.20553.
- Malgor RD, Alahdab F, Elraiyah TA, Rizvi AZ, Lane MA, Prokop LJ, Phung OJ, Farah W, Montori VM, Conte MS, Murad MH. A systematic review of treatment of intermittent claudication in the lower extremities. J Vasc Surg. 2015 Mar;61(3 Suppl):54S-73S. doi: 10.1016/j.jvs.2014.12.007. Epub 2015 Feb 23. Erratum In: J Vasc Surg. 2015 May;61(5):1382. Alalahdab, Fares [Corrected to Alahdab, Fares].
- Murphy TP, Hirsch AT, Ricotta JJ, Cutlip DE, Mohler E, Regensteiner JG, Comerota AJ, Cohen DJ; CLEVER Steering Committee. The Claudication: Exercise Vs. Endoluminal Revascularization (CLEVER) study: rationale and methods. J Vasc Surg. 2008 Jun;47(6):1356-63. doi: 10.1016/j.jvs.2007.12.048. Epub 2008 Apr 25.
- Murphy TP, Cutlip DE, Regensteiner JG, Mohler ER, Cohen DJ, Reynolds MR, Massaro JM, Lewis BA, Cerezo J, Oldenburg NC, Thum CC, Goldberg S, Jaff MR, Steffes MW, Comerota AJ, Ehrman J, Treat-Jacobson D, Walsh ME, Collins T, Badenhop DT, Bronas U, Hirsch AT; CLEVER Study Investigators. Supervised exercise versus primary stenting for claudication resulting from aortoiliac peripheral artery disease: six-month outcomes from the claudication: exercise versus endoluminal revascularization (CLEVER) study. Circulation. 2012 Jan 3;125(1):130-9. doi: 10.1161/CIRCULATIONAHA.111.075770. Epub 2011 Nov 16.
- Murphy TP, Hirsch AT, Cutlip DE, Regensteiner JG, Comerota AJ, Mohler E, Cohen DJ, Massaro J; CLEVER Investigators. Claudication: exercise vs endoluminal revascularization (CLEVER) study update. J Vasc Surg. 2009 Oct;50(4):942-945.e2. doi: 10.1016/j.jvs.2009.04.076. Epub 2009 Aug 5.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start (ACTUAL)
March 1, 2017
Primary Completion (ANTICIPATED)
December 1, 2023
Study Completion (ANTICIPATED)
December 1, 2023
Study Registration Dates
First Submitted
September 6, 2016
First Submitted That Met QC Criteria
February 7, 2017
First Posted (ESTIMATE)
February 9, 2017
Study Record Updates
Last Update Posted (ACTUAL)
November 3, 2022
Last Update Submitted That Met QC Criteria
November 2, 2022
Last Verified
November 1, 2022
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- AAL0001ARG
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
UNDECIDED
IPD Plan Description
If users consent, their data may or may not be shared with their personal physicians for direct patient care.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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