Centre For Clinical Research And Biostatistics (CCRB)

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1 Unique Trial Number (assigned by CCRB)

CUHK_CCT00034

2 Trial Registration Date

2005-09-07

i Registration Status

Retrospective

3 Secondary IDs

4 Source(s) of Funding

NIL

5 Primary Sponsor

Department of Medicine & Therapeutics, The Chinese University of Hong Kong

6 Secondary Sponsor

N/A

Function

Please specify

7 Responsible Contact Person (public contact person for patients interested in participating)

i Name

Dr. Fung Wing Hong

ii Address

iii Phone

Department of Medicine & Therapeutics, The Chinese University of Hong Kong

iv Email

2632-3174

v Affiliation

vi Country

8 Research Contact Person (person to contact for scientific inquiries)

i Name

Dr. Fung Wing Hong

ii Address

iii Phone

Department of Medicine & Therapeutics, The Chinese University of Hong Kong

iv Email

jwhfung@cuhk.edu.hk

v Affiliation

vi Country

9 Official Scientific Title of the Study

Effect of atrioventricular nodal ablation on left ventricular systolic function in patients with atrial fibrillation already received cardiac resynchronization therapy

10 Public Title

i Public Title in Chinese 研究名稱

11 Short Title (Optional)

12 Countries of Recruitment

13 Research Ethic Review

i Has the study received appropriate ethics approval?

Yes

ii When is the approval date?

2005-04-01

iii Full Name of IRB/IEC

Please specify

iv IRB/IEC approval reference number

14 Medical Condition Being Studied

Heart and Blood Vessel Diseases

15 Intervention

i Types of intervention

Procedure

Please specify

ii Description/ name of Intervention/article

atrioventricular nodal ablation

iii Dosage form of the intervention

iv Dosage of the intervention

v Duration of the intervention

once

vi Frequency of the intervention

16 Comparative Treatments

i Description/ name of comparative treatments

nil

ii Dosage form of the comparative treatments

iii Dosage of the comparative treatments

iv Duration of the comparative treatments

v Frequency of the comparative treatments

17 Key Inclusion and Exclusion Criteria

i Inclusion Criteria

Inclusion:Patients with atrial fibrillation and already received CRT device Exclusion: Patients with recent myocardial infarction, acute coronary syndrome, unstable medical condtions and life expectancy less than 6 months

ii Exclusion Criteria

iii Age Minimum

iv Age Maximum

v Gender

18 Study Type

19 Study Design

i Randomization

Non-randomized

Please specify

ii Nature of control

Uncontrolled

iii Degree of masking

Open label

If Single-blind, who will be masked?

iv Group Assignment

Single group

v Study Phase

Please specify

vi Study Objectives (Optional)

20 Anticipated trial start date

2005-05-09

21 Target Sample Size

20

22 Recruitment Status

Recruiting

23 Primary Outcome

Provide a better rate control profile for those patients in AF who had already received CRT

24 Secondary Outcome

Further improve the cardiac function in those patients

25 Study Information/Publication

i Study Information/Publication Available?

No

ii Link to Study Information/Publication

26 Last Update Date

2009-11-23

27 Primary Registry and Trial Identifying Number

28 Date of Registration in Primary Registry

* Legacy Fields

i Recruitment Information Available?

Yes

ii Link to Recruitment Information

None

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Trial History Detail on 2005-09-07