CClinicalTrials.gg
CompletedNCT01523704Updated Jan 27, 2021Results posted

Safety and Efficacy Study of IPG Patient With Home Monitoring

An interventional study of BIOTRONIK Home Monitoring System and BIOTRONIK Home Monitoring System with In-office Follow-up in Bradyarrhythmia, sponsored by Biotronik Japan, Inc.. Completed at 1 site in Japan. Open to participants aged 20 Years and older. Per ClinicalTrials.gov, last updated 2021-01-27.

Sponsored by Biotronik Japan, Inc. · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
1,327
Allocation
Randomized
Ages
20 Years and older
Sex
All
01

Study summary

The number of patients with implantable pulse generator (IPG) has steadily increased in Japan causing increment in number of in office follow-ups and greater burden on many hospitals.

The purpose of this multicenter randomized study is to demonstrate that BIOTRONIK Home Monitoring system reduces office follow-up visits without compromising patient safety.

Read the detailed description

Patients will be randomized into HM follow-up only (Group 1) or HM \& in-office follow-up (Group 2) and will be followed-up for 27 months.

02

Conditions studied

  • Bradyarrhythmia

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03

In context

Bradycardia

306 studies on the registry are indexed under Bradycardia; 69 are open to participants now.

This study's enrollment of 1,327 is above the median of 99 across 174 interventional studies indexed under Bradycardia.

Browse Bradycardia studies →

Lead sponsor

Biotronik Japan, Inc. is the lead sponsor of 2 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
20 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Indicated for IPG implantation under Japanese guidelines
  • Implanted within the last 45 days or being considered for implant with a BIOTRONIK IPG with Home Monitoring
  • Able to utilize HM system throughout the study
  • Ability to give informed consent
  • Geographically stable and able to return for follow-ups for 27 months
  • Over 20 years old
  • Patient able to understand and follow the procedure stated in protocol

Exclusion criteria

Exclusion Criteria:

  • Contraindicated for IPG under Japanese guidelines
  • Patients who are currently included in another cardiac clinical study
  • Patients with expected life period of less than two years
  • Patients who might undergo heart transplantation in next two years.
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
1,327 participants (actual)

Study arms

  • Experimental
    Home Monitoring(HM)

    Patients assigned to HM Group(HM follow-up ONLY) will have Home Monitoring programmed ON. They will be seen in the office for device interrogations at the 3-month follow-up, and at 27 month follow-up. In the meanwhile the device status will be evaluated using HM only for the 9, 15 and 21 month scheduled follow-up. Patients will visit the hospital for device interrogation on 27 month final follow-up.

    Device: BIOTRONIK Home Monitoring System

  • Active comparator
    Control

    Patients assigned to Control Group (HM + Conventional In-office follow-up - Control group) will have HM programmed ON. In addition to HM, these patients will visit the hospital for device interrogation at 3, 9, 15, 21 and 27 month follow-ups.

    Device: BIOTRONIK Home Monitoring System with In-office Follow-up

Interventions

  • DeviceBIOTRONIK Home Monitoring System

    Home Monitoring system transfers implantable device's data to the main server via internet.

  • DeviceBIOTRONIK Home Monitoring System with In-office Follow-up
06

What researchers measure

Primary outcomes

  1. Evaluation for Equivalence of the Number of Patients Who Meet the Composite Safety Endpoint Between Home Monitoring Group(HM) and Control Group Which is HM + Conventional In-office Follow-up

    The purpose of the primary endpoint is to compare the composite safety endpoint, Safety Event Rate (SER) which includes death, incidence of strokes and cardiovascular related serious adverse events requiring surgical interventions (e.g. device explants or lead revision) between HM Group and Control Group. Safety will be evaluated in the following testable hypothesis in an equivalence (non-inferiority) format: HØ: The safety event rate (SER) for a 24-month duration for Group 1 is not equivalent to the SER for Group 2. SER Group 1 - SER Group 2 ≥ Ha : The safety event rate (SER) for a 12-month duration for Group 1 is equivalent to the SER for Group 2 SER Group 1 - SER Group 2 \< Where, ( )represents the allowable clinically significant difference. 5% was set for the study. A rejection of the null hypothesis (HØ) will indicate that the safety event rate for Group 1 is equivalent (non-inferior) to that of Group 2.

    Time frame: 2 years

Secondary outcomes

  1. The Median (IQR) Numbers of In-office Follow-up(FU) Visits Per Patient-year

    Average numbers of outpatient follow-up(FU)s per patient are compared between Home Monitoring(HM) group and the control group, assessing total numbers of outpatient FUs combining regular and additional FUs. If the average number of visits in HM group is significantly less than that in Control group, it would serve as supporting evidence that the number of outpatient FUs can be reduced with HM. Analysis is performed on those patients that had a regular 3 months-FU following Intention to treat(ITT) principle. The analysis population of endpoint can be expected to be larger than the analysis population of the primary endpoints because patients with drop-out after the 3-months FU, but before the 27 months-FU will be included. The numbers of FU visits that occur in the 2 groups during the study period are compared as follows: AveN Group 1= Average number of FU visits per 2 years in the HM group AveN Control= Average number of FU visits per 2 years in the control group

    Time frame: 2 years

  2. Efficacy of Home Monitoring:Average Cost for In-office Follow-up Per Patient-year

    The sum of insured medical expenses for regular and additional outpatient FUs will be compared between HM group and Control group. It shall include Fees of FU consultation, cardiac IPG instruction, and other diagnostic test , but treatment fees including medication. Hospitalization are not included. This analysis is performed on the same ITT population as the analysis set of the first secondary endpoint. To compensate for possible asymmetric drop-out, the comparison will not be cost per patient, but costs per patient-year. Study costs per patient will be calculated by summing up all relevant variables in 3mFU Randomization CRF (points2-11) as well as in InOffice FU CRF and in Additional InOffice FU CRF. Total costs per patient result by multiplying the sum of all points by 10. Unit measurement is Yen. H : The average costs in HM group are not less than that in Control group. AveCostsHM ≥ AveCostsControl Ha: The average costs in HM group are less than that in Control group.

    Time frame: 2 years

07

Results

Posted Jan 27, 2021
Limitations and caveats
We used one RM platform exclusively. This maintained continuous RM with 90.1% daily transmission success over two years, matching rates observed in other (shorter) trials. Whether our results are transferable to other RM platforms is uncertain.

Participant flow

Participant flow — Overall Study
MilestoneHome Monitoring GroupControl
Started636638
Completed558550
Not completed7888

Outcome measures

PrimaryEvaluation for Equivalence of the Number of Patients Who Meet the Composite Safety Endpoint Between Home Monitoring Group(HM) and Control Group Which is HM + Conventional In-office Follow-up

The purpose of the primary endpoint is to compare the composite safety endpoint, Safety Event Rate (SER) which includes death, incidence of strokes and cardiovascular related serious adverse events requiring surgical interventions (e.g. device explants or lead revision) between HM Group and Control Group. Safety will be evaluated in the following testable hypothesis in an equivalence (non-inferiority) format: HØ: The safety event rate (SER) for a 24-month duration for Group 1 is not equivalent to the SER for Group 2. SER Group 1 - SER Group 2 ≥ Ha : The safety event rate (SER) for a 12-month duration for Group 1 is equivalent to the SER for Group 2 SER Group 1 - SER Group 2 \< Where, ( )represents the allowable clinically significant difference. 5% was set for the study. A rejection of the null hypothesis (HØ) will indicate that the safety event rate for Group 1 is equivalent (non-inferior) to that of Group 2.

Time frame:
2 years
Reported as:
Count of participants · Participants
Evaluation for Equivalence of the Number of Patients Who Meet the Composite Safety Endpoint Between Home Monitoring Group(HM) and Control Group Which is HM + Conventional In-office Follow-up
ParticipantsHome Monitoring GroupControl
Evaluation for Equivalence of the Number of Patients Who Meet the Composite Safety Endpoint Between Home Monitoring Group(HM) and Control Group Which is HM + Conventional In-office Follow-up6165
SecondaryThe Median (IQR) Numbers of In-office Follow-up(FU) Visits Per Patient-year

Average numbers of outpatient follow-up(FU)s per patient are compared between Home Monitoring(HM) group and the control group, assessing total numbers of outpatient FUs combining regular and additional FUs. If the average number of visits in HM group is significantly less than that in Control group, it would serve as supporting evidence that the number of outpatient FUs can be reduced with HM. Analysis is performed on those patients that had a regular 3 months-FU following Intention to treat(ITT) principle. The analysis population of endpoint can be expected to be larger than the analysis population of the primary endpoints because patients with drop-out after the 3-months FU, but before the 27 months-FU will be included. The numbers of FU visits that occur in the 2 groups during the study period are compared as follows: AveN Group 1= Average number of FU visits per 2 years in the HM group AveN Control= Average number of FU visits per 2 years in the control group

Time frame:
2 years
Reported as:
Mean · In-office FU visits per patient per year
The Median (IQR) Numbers of In-office Follow-up(FU) Visits Per Patient-year
In-office FU visits per patient per yearHome Monitoring(HM)Control
The Median (IQR) Numbers of In-office Follow-up(FU) Visits Per Patient-year0.69 ± 0.432.00 ± 0.40
SecondaryEfficacy of Home Monitoring:Average Cost for In-office Follow-up Per Patient-year

The sum of insured medical expenses for regular and additional outpatient FUs will be compared between HM group and Control group. It shall include Fees of FU consultation, cardiac IPG instruction, and other diagnostic test , but treatment fees including medication. Hospitalization are not included. This analysis is performed on the same ITT population as the analysis set of the first secondary endpoint. To compensate for possible asymmetric drop-out, the comparison will not be cost per patient, but costs per patient-year. Study costs per patient will be calculated by summing up all relevant variables in 3mFU Randomization CRF (points2-11) as well as in InOffice FU CRF and in Additional InOffice FU CRF. Total costs per patient result by multiplying the sum of all points by 10. Unit measurement is Yen. H : The average costs in HM group are not less than that in Control group. AveCostsHM ≥ AveCostsControl Ha: The average costs in HM group are less than that in Control group.

Time frame:
2 years
Reported as:
Mean · Cost for in-office FU per patint-year
Efficacy of Home Monitoring:Average Cost for In-office Follow-up Per Patient-year
Cost for in-office FU per patint-yearHome Monitoring GroupControl
Efficacy of Home Monitoring:Average Cost for In-office Follow-up Per Patient-year21065 ± 2305123552 ± 23986

Adverse events

Collected over 24 months. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Home Monitoring Group46/558 (8.2%)68/558 (12.2%)7/558 (1.3%)
Control41/550 (7.5%)68/550 (12.4%)16/550 (2.9%)
Most frequent serious events
Most frequent serious events
EventHome Monitoring GroupControl
The number of the composite primary endpointCardiac disorders61/55865/550
DeathCardiac disorders46/55841/550
The number of Cardiovascular surgeryCardiac disorders14/55820/550
The number of StrokeVascular disorders8/5587/550
Most frequent other events
Most frequent other events
EventHome Monitoring GroupControl
Other safety eventsCardiac disorders7/55816/550

Baseline characteristics

Age, Continuous
Age, Continuous(years)Home Monitoring GroupControlTotal
Mean75.8 ± 9.777.2 ± 9.777 ± 10
Sex: Female, Male
Sex: Female, Male(Participants)Home Monitoring GroupControlTotal
Female297345642
Male339293632
Region of Enrollment
Region of Enrollment(participants)Home Monitoring GroupControlTotal
Japan6366381274
08

Study locations

1 site
  • Fujita Health University
    Toyoake, Aichi 4701192, Japan
09

References and documents

Publications

  • Watanabe E, Yamazaki F, Goto T, Asai T, Yamamoto T, Hirooka K, Sato T, Kasai A, Ueda M, Yamakawa T, Ueda Y, Yamamoto K, Tokunaga T, Sugai Y, Tanaka K, Hiramatsu S, Arakawa T, Schrader J, Varma N, Ando K. Remote Management of Pacemaker Patients With Biennial In-Clinic Evaluation: Continuous Home Monitoring in the Japanese At-Home Study: A Randomized Clinical Trial. Circ Arrhythm Electrophysiol. 2020 May;13(5):e007734. doi: 10.1161/CIRCEP.119.007734. Epub 2020 Apr 28. PubMed 32342703 ↗
10

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 27, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01523704
Lead sponsor
Biotronik Japan, Inc.
Responsible party
Sponsor
First posted
Feb 1, 2012
Start date
Jan 2012
Primary completion
Feb 2016
Completion
Feb 2016
Results posted
Jan 27, 2021
Last update
Jan 27, 2021

Study contacts

Eiichi Watanabe, MD
principal investigator · Fujita Health University

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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