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Trial details imported from

For full trial details, please see the original record at

Registration number
Ethics application status
Date submitted
Date registered
Date last updated

Titles & IDs
Public title
A Feasibility Study of the Millipede Transcatheter Annuloplasty Ring System in Patients With Functional Mitral Regurgitation
Scientific title
A Study to Evaluate the Feasibility and Safety of the Millipede Transcatheter Annuloplasty Ring System in Patients With Functional Mitral Regurgitation: (Millipede Feasibility Study)
Secondary ID [1] 0 0
Universal Trial Number (UTN)
Trial acronym
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Mitral Regurgitation Functional 0 0
Mitral Valve Disease 0 0
Cardiovascular Diseases 0 0
Condition category
Condition code

Study type
Description of intervention(s) / exposure
Treatment: Devices - Millipede Transcatheter Annuloplasty Ring System (Millipede System)

Experimental: Mitral Valve Repair - All subjects will receive mitral valve repair using the Millipede System

Treatment: Devices: Millipede Transcatheter Annuloplasty Ring System (Millipede System)
The Millipede Transcatheter Annuloplasty Ring System is a repair device used for treating mitral valve regurgitation (MR). The system consists of several components: a transcatheter annuloplasty ring (implant) which remains in the body and a delivery system and intracardiac echocardiography catheter (imaging device) used to deliver the implant to the mitral valve.

Intervention code [1] 0 0
Treatment: Devices
Comparator / control treatment
Control group

Primary outcome [1] 0 0
Technical Success - Technical Success is defined as successful delivery of the device in the correct anatomical position and withdrawal of the delivery system without conversion to surgery or in-hospital mortality
Timepoint [1] 0 0
Discharge or 7 days post-procedure, whichever comes

Key inclusion criteria
- Subject is 18 years of age or older

- Subject (or legal guardian) understands the trial requirements and the treatment
procedures and provides written informed consent before any trial-specific tests or
procedures are performed

- Subject has moderate to severe (3+) or severe (4+) functional mitral regurgitation

- Subject is symptomatic (NYHA Class II-IV) despite guideline directed medical therapy,
including CRT if indicated

- The local site heart team concurs that surgery will not be offered as a treatment

- Subject is a candidate for annuloplasty based on the criteria below as assessed by the
investigative site:

Left Ventricular Ejection Fraction (LVEF) = 25% Left Ventricular End Diastolic Diameter
(LVEDD) = 65 mm Coaptation distance (i.e. tenting height) < 10 mm Absence of posterior wall
Minimum age
18 Years
Maximum age
No limit
Both males and females
Can healthy volunteers participate?
Key exclusion criteria
- Subject has severe calcification of the mitral annulus or leaflets, mitral annular
diameter >43 mm in any dimension or other anatomic features which make the patient
unsuitable for annuloplasty with the Millipede System in the judgment of the treating

- Transfemoral venous and transseptal access determined not to be feasible

- Subject is on the waiting list for a transplant or has had a prior heart transplant

- Subject has had a cerebrovascular accident (CVA) or transient ischemic attack (TIA)
within 30 days prior to study enrollment

- Subject has had any percutaneous coronary, carotid, or other endovascular intervention
within 30 days prior to study enrollment

- Subject has had carotid surgery within 30 days prior to study enrollment

- Subject has had any open coronary or vascular surgery (other than carotid surgery)
within 3 months prior to study enrollment

- Subject has had a cardiac resynchronization therapy (CRT) device implantation within 3
months prior to study enrollment

- Subject has untreated clinically significant coronary artery disease requiring

- Any planned cardiac surgery within the next 12 months

- Need for emergent or urgent surgery for any reason

- Subject has severe aortic valve stenosis and/or aortic valve regurgitation

- Subject has physical evidence of right-sided congestive heart failure (CHF) with
echocardiographic evidence of moderate or severe right ventricular dysfunction and/or
severe tricuspid valve regurgitation

- Subject has the presence of prosthetic heart valve in any position

- Subject has renal insufficiency requiring dialysis

- Subject has a life expectancy less than 12 months

- Subjects in whom trans-esophageal ECHO/Doppler is contraindicated or in which mitral
regurgitation is not measurable by Transthoracic Echocardiography (TTE)

- Subject has known hypersensitivity or contraindication to protocol required procedural
or post procedural medication (e.g., anticoagulation therapy) or hypersensitivity to
nickel or titanium

- Subject has known hypersensitivity to contrast that cannot be adequately premedicated

Study design
Purpose of the study
Device Feasibility
Allocation to intervention
Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
Methods used to generate the sequence in which subjects will be randomised (sequence generation)
Masking / blinding
Open (masking not used)
Who is / are masked / blinded?

Intervention assignment
Single group
Other design features
Not Applicable
Type of endpoint(s)
Statistical methods / analysis

Recruitment status
Data analysis
Reason for early stopping/withdrawal
Other reasons
Date of first participant enrolment
Date of last participant enrolment
Date of last data collection
Sample size
Accrual to date
Recruitment in Australia
Recruitment state(s)
Recruitment hospital [1] 0 0
Monash Medical Centre - Clayton
Recruitment postcode(s) [1] 0 0
3168 - Clayton

Funding & Sponsors
Primary sponsor type
Commercial sector/Industry
Boston Scientific Corporation

Ethics approval
Ethics application status

Brief summary
To evaluate the feasibility and safety of the Millipede Transcatheter Annuloplasty Ring
System (Millipede System) in patients with functional mitral regurgitation
Trial website
Trial related presentations / publications
Public notes

Principal investigator
Name 0 0
Robert Gooley, MBBS
Address 0 0
Monash Health
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for public queries
Name 0 0
Peter Maurer
Address 0 0
Country 0 0
Phone 0 0
Fax 0 0
Email 0 0
Contact person for scientific queries

Summary results
For IPD and results data, please see