NCT01477138

Brief Summary

Background:

  • Potential negative effects of pacing in the RV-apex are well documented
  • However, study results comparing septal / RVOT-pacing versus RV-apical pacing controversial.
  • The optimal pacing mode in SSS (DDDR versus AAIR) is unclear, as the DDD (R) mode with an AV delay ≤ 220 ms should be the preferred pacing mode, according to the DANPACE trial \[DANPACE, ESC 2010, Stockholm\]. Aim: \- to evaluate chronic effects of proven right ventricular septal compared to minimized right ventricular septal pacing in patients with SSS Inclusion criterion:
  • Pacemaker indication according to current guidelines: sick sinus syndrome (SSS) Exclusion criteria:
  • Life expectancy \< 2 years
  • Age \<18 years
  • Noncompliance with regard to participation in the study
  • Pregnancy
  • AV block ° 2 and higher
  • Permanent atrial fibrillation
  • Heart failure NYHA III and IV, reduced LV-EF \<40%
  • ICD indication
  • Acute coronary syndrome. PCI or CABG \<3 months
  • Heart transplant
  • Placement of septal RV electrode is not possible Study design:
  • Prospective, monocentric, randomized, double-blinded
  • Run-in phase: for weeks AAI \[R\]-DDD \[R\]
  • Randomization: two groups A) septal right ventricular chamber pacing: mode DDD \[R\] versus B) Reduction of unnecessary ventricular pacing: AAI \[R\]-DDD \[R\].
  • FU: 6 and 12-months Primary endpoints:
  • LV ejection fraction and end-systolic LV volume after 12 months. Secondary endpoints:
  • LV end-diastolic volume, TAPSE, parameters of dyssynchrony (SPWMD, LV-PEP, IVMD), AF-burden, % ventricular pacing, CPX: peak oxygen consumption (peak VO2), VO2 AT, VO2/HR, VE/VCO2 slope; QoL scores (SF-36) after 12 months. Statistics/sample size estimation: In order to detect a difference in LVEF of 5% and for LV-ESV of 5 mL between the 2 groups after 12 months:
  • 90% power/alpha 5%: 84 patients per group
  • 80% power/alpha 5%: 63 patients per group
  • 10% for compensation of drop-outs / patients lost of follow-up. Two-sided 5% type 1 error Analysis intention-to-treat and based on the finally programmed pacing mode. Material
  • PG: market released dual chamber pacemakers with the ability to pace AAI(R) -DDD(R)
  • pacing leads: market-released standard active electrodes
  • RV electrode: septal verified under multi-level screening (RAO/LAO) and ECG (LBBB narrow \<150 ms / inferior axis)

Trial Health

43
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
126

participants targeted

Target at P50-P75 for all trials

Timeline
Completed

Started Jul 2011

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 1, 2011

Completed
4 days until next milestone

First Submitted

Initial submission to the registry

July 5, 2011

Completed
5 months until next milestone

First Posted

Study publicly available on registry

November 22, 2011

Completed
1.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2013

Completed
5 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2013

Completed
Last Updated

November 22, 2011

Status Verified

November 1, 2011

Enrollment Period

2 years

First QC Date

July 5, 2011

Last Update Submit

November 18, 2011

Conditions

Keywords

Sick Sinus SyndromeCardiac Pacing, ArtificialCardiac Resynchronization TherapyPacemaker, ArtificialSSS

Outcome Measures

Primary Outcomes (2)

  • end-systolic LV volume

    at randomisation and after 12 months

  • left ventricular ejection fraction (LV-EF)

    TTE, Simpson, biplane

    at randomisation and after 12 months

Secondary Outcomes (7)

  • TAPSE

    at randomisation and after 12 months

  • echocardiographic parameter of dyssynchrony

    at randomisation and after 12 months

  • peak VO2, VO2 AT, VO2/HR, VE/VCO2 slope

    at randomisation and after 12 months

  • quality of life-scores

    at randomisation and after 12 months

  • AF burden

    at randomisation and after 12 months

  • +2 more secondary outcomes

Study Arms (2)

DDD(R)

SSS. PM programmed to DDD(R) mode with ventricular pacing on the right ventricular septum.

Procedure: pacemaker implantation, AAI(R)-DDD(R) versus DDD(R)

AAI(R)<=>DDD(R)

SSS, PM-mode programmed for minimizing right ventricular pacing on the right interventricular septum

Procedure: pacemaker implantation, AAI(R)-DDD(R) versus DDD(R)

Interventions

Indication for pacemaker implantation: sick sinus syndrome in conformity with the current guidelines. Only market-released CE certified 2-chamber cardiac pacemakers and electrodes are used. The implantation is done according to the applicable standards. Active RV-lead is positioned on the right ventricular septum.

Also known as: AAI(R)<=>DDD(R), DDD(R)
AAI(R)<=>DDD(R)DDD(R)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Adults with symptomathic sick sinus syndrome

You may qualify if:

  • Pacemaker indication according to current guidelines: sick sinus syndrome (SSS)

You may not qualify if:

  • Life expectancy \<2 years
  • Age \< 18 years
  • Noncompliance with regard to participation in the study
  • Pregnancy
  • AV block ° 2 and higher
  • Permanent atrial fibrillation
  • Heart failure NYHA III and IV, reduced LV-EF \< 40%
  • ICD indication
  • Acute coronary syndrome. PCI or CABG \< 3 months
  • Heart transplant
  • Placement of septal RV electrode is not possible

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Klinikum Nuernberg South

Nuremberg, Bavaria, 90471, Germany

RECRUITING

Related Publications (10)

  • Schwaab B, Frohlig G, Alexander C, Kindermann M, Hellwig N, Schwerdt H, Kirsch CM, Schieffer H. Influence of right ventricular stimulation site on left ventricular function in atrial synchronous ventricular pacing. J Am Coll Cardiol. 1999 Feb;33(2):317-23. doi: 10.1016/s0735-1097(98)00562-2.

    PMID: 9973009BACKGROUND
  • Tse HF, Yu C, Wong KK, Tsang V, Leung YL, Ho WY, Lau CP. Functional abnormalities in patients with permanent right ventricular pacing: the effect of sites of electrical stimulation. J Am Coll Cardiol. 2002 Oct 16;40(8):1451-8. doi: 10.1016/s0735-1097(02)02169-1.

    PMID: 12392836BACKGROUND
  • Sweeney MO, Hellkamp AS, Ellenbogen KA, Greenspon AJ, Freedman RA, Lee KL, Lamas GA; MOde Selection Trial Investigators. Adverse effect of ventricular pacing on heart failure and atrial fibrillation among patients with normal baseline QRS duration in a clinical trial of pacemaker therapy for sinus node dysfunction. Circulation. 2003 Jun 17;107(23):2932-7. doi: 10.1161/01.CIR.0000072769.17295.B1. Epub 2003 Jun 2.

    PMID: 12782566BACKGROUND
  • Wilkoff BL, Cook JR, Epstein AE, Greene HL, Hallstrom AP, Hsia H, Kutalek SP, Sharma A; Dual Chamber and VVI Implantable Defibrillator Trial Investigators. Dual-chamber pacing or ventricular backup pacing in patients with an implantable defibrillator: the Dual Chamber and VVI Implantable Defibrillator (DAVID) Trial. JAMA. 2002 Dec 25;288(24):3115-23. doi: 10.1001/jama.288.24.3115.

    PMID: 12495391BACKGROUND
  • Stambler BS, Ellenbogen K, Zhang X, Porter TR, Xie F, Malik R, Small R, Burke M, Kaplan A, Nair L, Belz M, Fuenzalida C, Gold M, Love C, Sharma A, Silverman R, Sogade F, Van Natta B, Wilkoff BL; ROVA Investigators. Right ventricular outflow versus apical pacing in pacemaker patients with congestive heart failure and atrial fibrillation. J Cardiovasc Electrophysiol. 2003 Nov;14(11):1180-6. doi: 10.1046/j.1540-8167.2003.03216.x.

    PMID: 14678131BACKGROUND
  • Giudici MC, Thornburg GA, Buck DL, Coyne EP, Walton MC, Paul DL, Sutton J. Comparison of right ventricular outflow tract and apical lead permanent pacing on cardiac output. Am J Cardiol. 1997 Jan 15;79(2):209-12. doi: 10.1016/s0002-9149(96)00718-7.

    PMID: 9193029BACKGROUND
  • de Cock CC, Meyer A, Kamp O, Visser CA. Hemodynamic benefits of right ventricular outflow tract pacing: comparison with right ventricular apex pacing. Pacing Clin Electrophysiol. 1998 Mar;21(3):536-41. doi: 10.1111/j.1540-8159.1998.tb00095.x.

    PMID: 9558684BACKGROUND
  • Alboni P, Scarfo S, Fuca G, Mele D, Dinelli M, Paparella N. Short-term hemodynamic effects of DDD pacing from ventricular apex, right ventricular outflow tract and proximal septum. G Ital Cardiol. 1998 Mar;28(3):237-41.

    PMID: 9561877BACKGROUND
  • Yu CM, Chan JY, Zhang Q, Omar R, Yip GW, Hussin A, Fang F, Lam KH, Chan HC, Fung JW. Biventricular pacing in patients with bradycardia and normal ejection fraction. N Engl J Med. 2009 Nov 26;361(22):2123-34. doi: 10.1056/NEJMoa0907555. Epub 2009 Nov 15.

    PMID: 19915220BACKGROUND
  • Nielsen, Jens Cosedis - Blomstrom-Lundqvist, Carina. DANPACE: The Danish multicenter randomised trial on single lead atrial versus dual chamber pacing in sick sinus syndrome. ESC Kongress 2010, Stockholm, Session number: 708001 - 70800.

    RESULT

MeSH Terms

Conditions

Sick Sinus Syndrome

Condition Hierarchy (Ancestors)

Arrhythmia, SinusArrhythmias, CardiacHeart DiseasesCardiovascular DiseasesHeart BlockCardiac Conduction System DiseasePathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Matthias Pauschinger, Prof.Dr.med.

    Klinikum Nuernberg South/ Cardiology

    STUDY CHAIR
  • Dirk Bastian, MD

    Klinikum Nuernberg

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Natalia Rohr

Study Record Dates

First Submitted

July 5, 2011

First Posted

November 22, 2011

Study Start

July 1, 2011

Primary Completion

July 1, 2013

Study Completion

December 1, 2013

Last Updated

November 22, 2011

Record last verified: 2011-11

Locations