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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT04595305
Registration number
NCT04595305
Ethics application status
Date submitted
2/08/2020
Date registered
20/10/2020
Titles & IDs
Public title
Septal Mapping And Resynchronisation Therapy- (SMART) Study
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Scientific title
Septal Mapping And Resynchronisation Therapy- (SMART) Study
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Secondary ID [1]
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ABT-CIP-10291
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Cardiac Resynchronization Therapy
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Heart Failure
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Condition category
Condition code
Cardiovascular
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Coronary heart disease
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Cardiovascular
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Other cardiovascular diseases
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Devices - Cardiac resynchronization therapy by CRT-P or CRT-D implantation
Other: Treatment Arm - Standard of Care - Implantation of CRT-P or CRT-D for a clinical indication as per standard of care.
Treatment: Devices: Cardiac resynchronization therapy by CRT-P or CRT-D implantation
Clinically indicated implantation of a CRT-P or CRT-D device as per standard of care
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Intervention code [1]
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Treatment: Devices
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Quantification of activation times (ms) of the RV and LV septum
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Assessment method [1]
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Different pacing configurations such as LV-only pacing, biventricular pacing, and multipoint pacing will be used to quantify LV and RV septal activation time (ms).
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Timepoint [1]
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During implant procedure
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Secondary outcome [1]
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Quantification of the correlation coefficient relating changes in end-systolic volume (%) to the following variables: septal activation time (ms), septal scarring (% area), and ECG QRS duration (ms).
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Assessment method [1]
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End-systolic volume (mL), which is an essential marker of cardiac function, may be dependent on septal activation time (ms), septal scarring (% area), and ECG QRS duration (ms). To test these relations, the correlation between changes in end-systolic volume in response to CRT and the aforementioned parameters will be assessed.
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Timepoint [1]
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12 months post-implant
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Eligibility
Key inclusion criteria
* Subjects are 18 years of age or older, or of legal age to give informed consent specific to state and national law
* Subject must provide written informed consent prior to any clinical investigation related procedure
* Subjects who are undergoing implantation of an Abbott CRT-P or CRT-D device under standard indications
* Subjects are treated with optimal pharmacological therapy (as determined by the site principle investigator) for a minimum 4 weeks prior to procedure
* ECG showing Sinus Rhythm (SR)
* LBBB morphology with QRS duration >130ms
* Subject should be willing and able to comply with the prescribed follow-up schedule of evaluations.
* Female subjects of child-bearing potential should have a negative pregnancy test done within 7 days prior to the index procedure per site standard test.
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Minimum age
18
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
* Subjects with a life expectancy less than the duration of the study
* Subjects with medical conditions that preclude the testing required for all patients by the study protocol or that otherwise limit study participation required for all patients
* Subjects with mechanical tricuspid or aortic heart valves
* Inaccessibility for follow-up at the study centre
* Unwillingness or inability to provide written informed consent
* Enrollment in, or intention to participate in, another clinical study during the course of this study excluding a registry
* Pregnant or nursing subjects and those who plan pregnancy during the clinical investigation follow-up period
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Study design
Purpose of the study
Other
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Allocation to intervention
NA
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Single group
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Other design features
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Phase
NA
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
16/09/2019
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
23/08/2022
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Sample size
Target
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Accrual to date
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Final
3
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Recruitment in Australia
Recruitment state(s)
NSW
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Recruitment hospital [1]
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Abbott Medical Australia Pty Ltd - Macquarie Park
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Recruitment postcode(s) [1]
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2113 - Macquarie Park
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Funding & Sponsors
Primary sponsor type
Commercial sector/industry
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Name
Abbott Medical Devices
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Address
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Country
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Ethics approval
Ethics application status
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Summary
Brief summary
Normal heart function involves rhythmic contraction of all four chambers of the heart and this rhythm is maintained by the electrical wiring (conduction system) of the heart. Abnormality in this system results in either very slow or very fast heart rates leading to insufficient blood supply to the body due to inefficient pumping of the heart. cardiac resynchronization therapy pacemaker and cardiac resynchronization therapy defibrillator devices are used to synchronise heart function. The purpose of this study is not only to determine the pattern of electrical wiring of the heart and identify the variations seen in individuals with heart failure, but also, to explore the benefits of different types of pacing using CRT devices.
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Trial website
https://clinicaltrials.gov/study/NCT04595305
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Trial related presentations / publications
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Public notes
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Contacts
Principal investigator
Name
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David O'Donnell, MD, FRACP
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Address
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Fundacion GenesisCare
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Address
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Country
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Phone
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Fax
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Email
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Contact person for scientific queries
Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
No
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No/undecided IPD sharing reason/comment
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results not provided in
https://clinicaltrials.gov/study/NCT04595305