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MultiPoint Pacing IDE Study (MPP IDE)

This study is ongoing, but not recruiting participants.
Information provided by (Responsible Party):
St. Jude Medical Identifier:
First received: February 6, 2013
Last updated: August 8, 2016
Last verified: August 2016

This IDE study is a prospective, randomized, double-blind, multi-center clinical study to evaluate the safety and efficacy of patient treatment with MPP compared to patient treatment with standard BiV pacing at 9 months.

The study will be conducted at a maximum of 50 investigational centers located in the United States. A maximum of 506 subjects implanted with the Quadripolar cardiac resynchronization therapy device (CRT-D) system will be enrolled in the study.

Condition Intervention Phase
Heart Failure
Device: MultiPoint Pacing
Device: Traditional Biventricular Pacing
Phase 3

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double Blind (Subject, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: MultiPoint Pacing IDE Study

Further study details as provided by St. Jude Medical:

Primary Outcome Measures:
  • Freedom From System-related Complications Through 9 Months Compared to an Objective Performance Criterion [ Time Frame: Implant to 9 months ] [ Designated as safety issue: Yes ]
    A system related complication is a complication related to the Quadripolar CRT-D device system which includes pulse generator and leads, as adjudicated by an independent Clinical Events Committee (CEC). All subjects who had an attempted implant or a successful Quadripolar system implant were included in the analysis of this safety endpoint.

  • Percentage of Non-responders With MPP Compared to Biventricular Pacing [ Time Frame: 3 months to 9 months ] [ Designated as safety issue: No ]

    The hypothesis is that the non-response rate to CRT therapy in the MPP therapy arm is not inferior to the non-response rate in the BiV arm between 3 and 9 months post-implant. Responder status was assessed using the Clinical Composite Score (CCS). A patient's CCS was classified as worsened, improved or unchanged based on the definitions below:

    • Worsened - patient died due to cardiovascular reasons, experienced a HF event, demonstrated worsening in NYHA class, or had worsening of PGA score compared to the last observation
    • Improved - patient survived without a HF event, and demonstrated either improvement in NYHA class or improvement in PGA score, or both compared to the last observation.
    • Unchanged - patient was neither improved nor worsened

    For patients who were responders at the 3-month visit, those who were "Improved" and "Unchanged" between 3 and 9 months were classified as responders, whereas those who were "Worsened" were grouped together as non-responders.

Enrollment: 506
Study Start Date: April 2013
Estimated Study Completion Date: September 2016
Primary Completion Date: April 2015 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: Multi-point pacing arm
MultiPoint Pacing
Device: MultiPoint Pacing
Subjects are programmed to MPP between 3 and 9 months. MPP programming is stipulated by the Echocardiographic measurements (e.g. EA VTI) during an acute hemodynamic assessment at the 3-month visit in the MPP IDE study.
Active Comparator: Biventricular arm
Traditional Biventricular Pacing
Device: Traditional Biventricular Pacing
Subjects are programmed to Quadripolar BiV pacing between 3 and 9 months using any of the 10 vectors available.

Detailed Description:

All subjects will undergo a 2 dimensional Echocardiogram within the 30 days prior to implant, and again at 3, 6 and 9 months post implant. At implant, the final LV pacing configuration is programmed using any one of the 10 available pacing vectors. The paced/sensed atrioventricular (AV) and interventricular (VV) delays may be optimized as per the site's standard of care. Subjects will continue to receive BiV therapy until the 3-month follow-up visit.

At the 3-month visit, responder status between Enrollment and 3 months will be assessed using the Clinical Composite Score (CCS). All subjects that are "Improved" using the definition outlined in the CCS will be grouped together as Responders. All subjects that are "Worsened" or "Unchanged" using the definitions outlined in the CCS will be considered as Non-responders. All subjects will undergo acute measurement of cardiac performance (e.g., Echocardiography) at various MPP combinations compared to BiV pacing. Only subjects with "equal or better" echocardiographic measurements (i.e., EA VTI measurements) with MPP feature on compared to BiV pacing will be randomized in a 1:1 ratio to one of the two arms - BiV arm or MPP arm.

At the 9-month visit, responder status will be evaluated once again using the CCS and compared to the status at 3 months.


Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Meets current clinical indication for implantation of a cardiac resynchronization therapy system for treatment of heart failure or life-threatening ventricular tachyarrhythmia(s)
  • Receiving a new CRT implant or undergoing an upgrade from an existing ICD or pacemaker implant with no prior LV lead placement
  • Have the ability to provide informed consent for study participation and are willing and able to comply with the prescribed follow-up tests and schedule of evaluations

Exclusion Criteria:

  • Have had a recent Cerebrovascular Accident (CVA) or Transient Ischemic Attack (TIA) within 3 months of enrollment
  • Have an existing Class I recalled lead
  • Have a hypersensitivity to a single 1.0mg dose of dexamethasone sodium phosphate
  • Have a classification of Status 1 for cardiac transplantation or consideration for transplantation over the next 9 months
  • Have permanent atrial fibrillation (AF)
  • Have undergone a cardiac transplantation within 40 days of enrollment
  • Have had a recent myocardial infarction, unstable angina within 40 days or cardiac revascularization within 3 months of implant.
  • Are currently participating in a clinical investigation that includes an active treatment arm
  • Are pregnant or planning to become pregnant during the duration of the study
  • Have a life expectancy of less than 9 months due to any condition
  • Are less than 18 years of age
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its identifier: NCT01786993

  Show 49 Study Locations
Sponsors and Collaborators
St. Jude Medical
Principal Investigator: Gery Tomassoni, MD Central Baptist Hospital
  More Information

Responsible Party: St. Jude Medical Identifier: NCT01786993     History of Changes
Other Study ID Numbers: 60029161/D 
Study First Received: February 6, 2013
Results First Received: April 15, 2016
Last Updated: August 8, 2016
Health Authority: United States: Food and Drug Administration
Individual Participant Data  
Plan to Share IPD: Yes
Plan Description: The study results will be presented at HRS Late-Breaking Clincial Trials Session in May, 2016

Additional relevant MeSH terms:
Heart Failure
Heart Diseases
Cardiovascular Diseases processed this record on October 21, 2016