ClinicalTrials.gg
CompletedNCT03317964Updated Jun 22, 2025

Genetic Basis of Pacing-induced Cardiomyopathy

An observational study in Pacemaker, Artificial and Cardiomyopathies, sponsored by The Guthrie Clinic. Completed at 1 site in United States. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2025-06-22.

Sponsored by The Guthrie Clinic · Observational

Study type
Observational
Model
Case-control
Time perspective
Prospective
Enrollment
153
Ages
18 Years and older
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-12

Among 230 studies in Cardiomyopathies with a site in United States — 57 open to participants now, 68 under way, 6 of them phase 3. Cardiomyopathies · United States.

Enrollment
51st of 96
153 · median 160
Started
2017
with 3 others
Observational
97 of 230
32 open now
Registered
140th of 230
by date

Among the 230 studies in Cardiomyopathies with a site in United States, this one is the 51st largest by enrollment of the 96 observational ones that give a count, is one of 4 that started in 2017, is one of 97 observational ones, and was the 140th registered.

Cardiomyopathies

553 studies on the registry are indexed under Cardiomyopathies; 152 are open to participants now.

This study's enrollment of 153 is below the median of 200 across 263 observational studies indexed under Cardiomyopathies.

Browse Cardiomyopathies studies →

Open to participants now

57 of the 230 studies in Cardiomyopathies with a site in United States are open now.

All 57 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 116 Cardiomyopathies studies recruiting now, 71 (61%) set no upper age limit and 17 (15%) stop at 75 or younger; 36 take children under 18; 22 take healthy volunteers.

This study: 18 Years and older · all sexes · no healthy volunteers.

The full table on the hub →
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Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 230 studies in Cardiomyopathies with a site in United States, or all of them as a file.
02

Study summary

The purpose of this study is to collect a saliva sample from patients with a pacemaker to study genes involved in cardiomyopathy, a condition where the heart muscle is abnormal.

Read the detailed description

DNA will be extracted from the saliva to test for changes in genes related to cardiomyopathy.

03

Conditions studied

  • Pacemaker, Artificial
  • Cardiomyopathies

Browse trials for

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients seen at Robert Packer Hospital, Sayre, PA

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Patients who have been assessed for cardiomyopathy

Exclusion criteria

Exclusion Criteria:

  • Patients who do not have adequate follow up care to determine if they do or do not have cardiomyopathy
05

Study design

Observational model
Case-control
Time perspective
Prospective
Enrollment
153 participants (actual)
Patient registry
No
Biospecimen retention
Samples with dna

Groups and cohorts

  • Saliva - cardiomyopathy

    Saliva sample for genetic testing from subjects who developed cardiomyopathy

    Other: Saliva sample

  • Saliva - no cardiomyopathy

    Saliva sample for genetic testing from subjects who do not have cariomyopathy

    Other: Saliva sample

Interventions

  • OtherSaliva sample

    Extract sample of saliva only once

06

What researchers measure

Primary outcomes

  1. Number of participants with genotype frequency

    Number of participants with genotype frequency based on genetic testing of saliva samples

    Time frame: through study completion, an average of 1 year

07

Study locations

1 site
  • Robert Packer Hospital
    Sayre, Pennsylvania 18840, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Oct 2017 to primary completion in Jun 2025, 92 months.

Of 119 non-industry observational studies under Cardiomyopathies, half reached primary completion within 87 months of starting (the median), counting those still running; a quarter within 34. This study's 92 months is close to that.

Counting every sponsor, half of 140 studies reached it within 83 months; a quarter within 34.

How these figures are worked out, and which studies are left out of them.

Registered
Oct 16, 2017
First posted
Oct 23, 2017
StartActual
Oct 16, 2017
Primary completionActual
Jun 19, 2025
CompletionActual
Jun 19, 2025
Last update
Jun 22, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Jun 22, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03317964
Lead sponsor
The Guthrie Clinic
Responsible party
Sponsor
First posted
Oct 23, 2017
Start date
Oct 16, 2017
Primary completion
Jun 19, 2025
Completion
Jun 19, 2025
Last update
Jun 22, 2025

Study contacts

Pramod Deshmukh, MD
principal investigator · The Guthrie Clinic

Oversight

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

Not currently enrolling

This study is completed, as verified in Jun 2025. You cannot join it, but the record below documents what was studied.

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Discussion

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