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Physical ActivityNCT03052829

Physical Activity and Pacemaker Study

A study testing Physical activity counseling in people with Physical Activity and Pacemaker, run by Medical College of Wisconsin at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The benefits of regular physical activity are well-established. Furthermore, the investigators have previously shown that in a population of patients with implanted pacemakers, those who exercise more than 2 hours daily have improved survival compared with those who exercise less than 2 hours daily. Read more about this study

Who is it for?
Ages 55 years and older
What is being tested?
Physical activity counseling
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
21 participants
Where
1 siteUnited States
Study dates
1 Mar 2017to 1 Jul 2019
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 55 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Age > 55 years old
  • Clinical indication for placement of permanent pacemaker
  • LVEF of ≥ 50% at the time of or within 72 hours of implantation.
  • Able to ambulate
  • Average active time of ≤ 2 hours/day based on Revo or EnRhythm Accelerometery read out for the 3 month period prior to enrollment
  • Able to take 650 steps over 10 minutes following pacemaker implantation (~2-2.5 mph walking speed)

Who cannot join

  • Follow up for implantation planned at a non-study center at the time of implantation.
  • Individuals with and expected life span of 1 year or less at the time of implantation
  • Known history of cognitive impairment or inability to follow study procedures

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Medical College of Wisconsin and Froedtert Memorial Lutheran Hospital

    Milwaukee, Wisconsin, 53226

Other trials in United States

About this study

Official title: Reducing Sedentary Time in Individuals With Pacemakers - Tracking By Pacemaker-Based Accelerometry

The benefits of regular physical activity are well-established. Furthermore, the investigators have previously shown that in a population of patients with implanted pacemakers, those who exercise more than 2 hours daily have improved survival compared with those who exercise less than 2 hours daily. In this study, the aim f the investigators is to determine whether the offering subjects with pacemakers who have low levels of physical activity at baseline counseling to increase physical activity levels is effective as measured by their implanted device as well as by an external pacemaker.

The investigators seek to enroll about 30 patients into a 6-month 1:1 randomized interventional trial comparing the levels of physical activity in 2 groups, those who receive physical activity counseling versus usual care. The activity levels will be measured with external pedometers and with accelerometers embedded within the pacemaker device.

Read the detailed description

The benefits of habitual physical activity (PA, activities of at least moderate intensity defined as ≥ 3 metabolic equivalents (METs)) are well-recognized. Emerging information from large data sets strongly suggest high levels of sedentary behavior, defined as activities <1.5 METs (equivalent to the amount of energy expended during seated activities such as computer work) increases the risk of diabetes, cardiovascular disease, and death, independent of the amount and intensity PA. The increased risk of sedentary behavior appears to be mediated at least in part by reduced insulin sensitivity, impaired lipid metabolism, increased vascular inflammation, and increased thrombotic tendencies.

The internal accelerometer embedded in Medtronic pacemakers registers, stores, and reports total number of "active time" based on a threshold activity intensity level of approximately 70 steps/min (estimated to be > 1.5 METs). This implanted accelerometer, combined with the regular follow-up required for appropriate care make individuals who have undergone Medtronic pacemaker implantation an ideal population in which to evaluate the impact of altering sedentary behavior on mortality and cardiovascular events.

The hypotheses are as follows:

  1. a 12 week intervention to increase moderate intensity physical activity delivered at the point of care in patients with pacemakers will result in parallel increases in active time as measured by the pacemaker and step count as measured by pedometer.
  2. the increase in activity measured by both the metrics in hypothesis 1 will be greater than with usual care.

Potential subjects who are interested in the study will have a screening visit to determine whether they meet the inclusion and exclusion criteria. Those who qualify and agree to participate will be randomized into either the Physical Activity Counseling arm (intervention arm) or the Patient Usual Care arm (control arm).

Subjects in the interventional arm will be given a pedometer and physical activity counseling on a regular basis for 3 months. Physical activity data from their external pedometer will be collected every 2 weeks via phone calls. Accelerometry data from the implanted pacemaker will be collected from the subject's medical record as pacemaker interrogations are performed every 3 months as part of routine clinical care. After the initial 3 month interventional phase is complete, these subjects will be followed for another 3 months with collection of pedometer as well as accelerometer data as described above.

Subjects in the control arm will be given pedometers for the week prior to pacemaker interrogation. These subjects will be called to report the number of steps they walked each day prior to the interrogation. Their accelerometry data will be captured through routine clinical pacemaker interrogations.

The primary outcome is the physical activity level in each group as measured by the accelerometer at time 0, 3 months and 6 months. The secondary outcome is the step count in each group as measured by the pedometer at the same time points.

Being tested
Physical activity counseling, Usual care
Medical subject headings
Motor Activity, Cardiovascular Diseases, Arrhythmias, Cardiac

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Physical activity counselingBehavioural

    Subjects in this arm will receive counseling on how to increase their physical activity level.

  • Usual careBehavioural

    Subjects will undergo their usual care without intervention

Study groups in NCT03052829
Study groupRoleWhat they receive
Physical Activity CounselingExperimentalSubjects will be given counseling on the benefits of increasing activity, instructions on how to slowly increase their activity over 12 weeks with walking, record their daily step counts, and have bi-weekly phone calls with study staff to reinforce the training and help them overcome barriers to being physically active.
Receives: Behavioral: Physical activity counseling
Patient Usual CarePlacebo comparatorSubjects will undergo usual care without intervention in this study arm
Receives: Behavioral: Usual care

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Physical Activity Level as Measured by Embedded Accelerometer

    This is the daily measured active hours in the device

    Measured: 6 months

Secondary outcomes (1)
  1. Physical Activity Level as Measured by External Pedometer

    this is a daily step count (one week average)

    Measured: 6 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted14 Feb 2017
  2. Study start1 Mar 2017
  3. Primary completion14 Jan 2019
  4. Study completion1 Jul 2019

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
21 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03052829
Sponsor's protocol ID
PRO27994
Status last verified
May 2024
First submitted
10 Feb 2017
Last updated
19 Sep 2024
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: Step-count data from the pedometers that the subjects wear along with the activity level as measured by the subject's pacemaker will be shared with the collaborating researchers at Medtronic and at UW-Milwaukee. This data will be obtained via phone conversations with the subject and via in-clinic or remote interrogations of the implanted pacemakers. The data will become available on an ongoing basis during the study duration as participants are contacted per the study protocol.

Publications

  • Puppala VK, Hofeld BC, Anger A, Tyagi S, Strath SJ, Fox J, Berger MG, Ahn KW, Widlansky ME. Pacemaker detected active minutes are superior to pedometer-based step counts in measuring the response to physical activity counseling in sedentary older adults. BMC Geriatr. 2020 May 6;20(1):162. doi: 10.1186/s12877-020-01559-y.

    PubMed 32375676

Questions about this trial

What is this clinical trial studying?

A study testing Physical activity counseling in people with Physical Activity and Pacemaker, run by Medical College of Wisconsin at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 19 Sep 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 19 Sep 2024). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Physical Activity Level as Measured by Embedded Accelerometer (time frame: 6 months). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03052829, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 19 Sep 2024.

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