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MANTA Ultrasound Closure Study

Prospective Multicenter MANTA™ Vascular Closure Device Ultrasound Guided Closure Study

Status
Terminated
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT05142566
Acronym
MANTA ULTRA
Enrollment
17
Registered
2021-12-02
Start date
2022-08-09
Completion date
2023-01-11
Last updated
2023-07-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Femoral Arteriotomy Closure

Keywords

MANTA, Arterial Closure Device, Ultrasound Closure, Large Bore Closure Device

Brief summary

Demonstrate the safety of MANTA Vascular Closure Device (VCD) ultrasound (U/S) guided closure in patients undergoing elective TAVR procedures with planned percutaneous femoral arterial access.

Detailed description

The MANTA Vascular Closure Device is indicated for closure of femoral arterial access sites while reducing time to hemostasis following the use of 10-20F devices or sheaths (12-25F OD) in endovascular catheterization procedures. This study is being conducted to demonstrate the safety of U/S guided closure with MANTA VCD following TAVR procedures utilizing large bore sheaths.

Interventions

Evaluate the safety of ultrasound guided deployment of MANTA VCD.

Sponsors

Teleflex
CollaboratorINDUSTRY
Essential Medical, Inc.
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Masking description

None (Open Label)

Eligibility

Sex/Gender
ALL
Age
21 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Candidate for elective or planned (i.e., not emergent or urgent) percutaneous transcatheter valve replacement (TAVR) via a 10-20F device or sheath (12-25F OD) with common femoral artery approach * Vessel size would allow for access for the MANTA VCD based on vessel size as determined by baseline CTA: minimum vessel diameter of 5mm for the 14F MANTA VCD and 6mm for the 18F MANTA VCD * Understand and sign the study specific written informed consent form and PHI authorization * Able and willing to fulfill the follow-up requirements

Exclusion criteria

* Patients known to be pregnant or lactating * Patients who have a systemic infection or a local infection at or near the access site * Patients with significant anemia (hemoglobin ≤10 g/DL) * Patients who are morbidly obese or cachectic (BMI \>40 or \<20kg/m2) * Patients with a known bleeding disorder including thrombocytopenia (platelet count \<100,000 cells/UL), thrombasthenia, hemophilia, or von Willebrand disease * Patients with allergy to bovine materials or any other device material, including collagen and/or collagen products, polyglycolic or polylactic acid, stainless steel or nickel * Patients with a femoral artery puncture in target groin within the prior 30 days, prior vascular closure device placement in the target common femoral artery within 3 months, or any prior target femoral artery access-related complication * Patients who have undergone use of an intra-aortic balloon pump (IABP) through the arterial access site within 30 days prior to the baseline evaluation. * Patients who have a Common Femoral Artery (CFA) with visible calcium and/or tortuosity, as determined by baseline CTA, precluding safe access and likely to interact with large bore access site arteriotomy, determined by investigator. * Patients with previous iliofemoral intervention in region of access site, including but not limited to prior atherectomy, stenting, surgical or grafting procedures in the access area * Patients in whom oral anticoagulation therapy cannot be stopped for the peri procedural period or patients with INR \>1.8 at the time of the procedure * Patients who are unable to ambulate at least 6 meters without assistance at baseline * Patients with renal insufficiency (serum creatinine \>2.5 mg/dl) or on dialysis therapy * Patients with existing nerve damage in the ipsilateral leg * Patients with a further planned endovascular procedure within the next 30 days * Patients who have already participated in this IDE study * Patients who are currently participating in another clinical study of an unapproved investigational device or drug that has not concluded the follow-up period or patient currently participating in another clinical study likely to influence hemostasis and vascular complications * Patients who cannot adhere to or complete the investigational protocol for any reason including but not limited to geographical residence, psychiatric condition or life threatening disease * Patients who have a common femoral artery \<5mm in diameter for the 14F MANTA VCD or \<6 mm in diameter for the 18F MANTA VCD, common femoral artery stenosis resulting in a vessel diameter \<5mm in diameter for the 14F MANTA VCD or \<6 mm in diameter for the 18F MANTA VCD, or \> 50% diameter femoral or iliac artery stenosis * Patients in whom, during initial access of the artery, arteriotomy and surrounding anatomy cannot be visualized and identified clearly under U/S imaging and/or if the vertical depth from the surface of the skin to target area of the common femoral artery measures greater than 6cm

Design outcomes

Primary

MeasureTime frameDescription
Rate of Any Large Bore Access-site Related VARC-2 Major Vascular Complicationwithin 30 daysadapted from VARC-2 Criteria

Secondary

MeasureTime frameDescription
Number of Patients With Technical Successwithin 30 daysPercutaneous vascular closure is obtained without the use of unplanned endovascular or surgical intervention.
Number of Subjects With Ambulation SuccessDuring procedure admissionIf a previously ambulatory patient (until day of TAVI) is able to ambulate for at least 20 feet/6 meters without re-bleeding.
Time to AmbulationDuring procedure admissionThe elapsed time between VCD deployment and when ambulation is achieved.
Time to HemostasisDuring the procedureThe elapsed time between VCD deployment and first observed and confirmed arterial hemostasis.
Procedure TimeDuring the procedureElapsed time from initial skin break to time when the post-deployment angiogram is completed.
Rate of Any Large Bore Access-site Related VARC-2 Minor Vascular Complicationwithin 30 daysadapted from VARC-2 Criteria
Treatment Successwithin 30 daysTime to Hemostasis ≤10 minutes and no VACR-2 Major complications

Countries

Canada, United States

Participant flow

Recruitment details

one subject was treated by a physician who was not officially trained and signed off on the protocol or device.

Participants by arm

ArmCount
Ultrasound Closure
Open label, single arm study using ultrasound guidance during MANTA device deployment. MANTA Vascular Closure Device: Evaluate the safety of ultrasound guided deployment of MANTA VCD.
17
Total17

Withdrawals & dropouts

PeriodReasonFG000
Overall StudyProtocol Violation1

Baseline characteristics

CharacteristicUltrasound Closure
Age, Continuous80.06 years
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
17 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
3 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
14 Participants
Region of Enrollment
Canada
11 participants
Region of Enrollment
United States
6 participants
Sex: Female, Male
Female
8 Participants
Sex: Female, Male
Male
9 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 17
other
Total, other adverse events
4 / 17
serious
Total, serious adverse events
2 / 17

Outcome results

Primary

Rate of Any Large Bore Access-site Related VARC-2 Major Vascular Complication

adapted from VARC-2 Criteria

Time frame: within 30 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Ultrasound ClosureRate of Any Large Bore Access-site Related VARC-2 Major Vascular Complication0 Participants
Secondary

Number of Patients With Technical Success

Percutaneous vascular closure is obtained without the use of unplanned endovascular or surgical intervention.

Time frame: within 30 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Ultrasound ClosureNumber of Patients With Technical Success17 Participants
Secondary

Number of Subjects With Ambulation Success

If a previously ambulatory patient (until day of TAVI) is able to ambulate for at least 20 feet/6 meters without re-bleeding.

Time frame: During procedure admission

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Ultrasound ClosureNumber of Subjects With Ambulation Success17 Participants
Secondary

Procedure Time

Elapsed time from initial skin break to time when the post-deployment angiogram is completed.

Time frame: During the procedure

ArmMeasureValue (MEDIAN)
Ultrasound ClosureProcedure Time0.75 Hours
Secondary

Rate of Any Large Bore Access-site Related VARC-2 Minor Vascular Complication

adapted from VARC-2 Criteria

Time frame: within 30 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Ultrasound ClosureRate of Any Large Bore Access-site Related VARC-2 Minor Vascular Complication1 Participants
Secondary

Time to Ambulation

The elapsed time between VCD deployment and when ambulation is achieved.

Time frame: During procedure admission

ArmMeasureValue (MEDIAN)
Ultrasound ClosureTime to Ambulation8.93 hours
Secondary

Time to Hemostasis

The elapsed time between VCD deployment and first observed and confirmed arterial hemostasis.

Time frame: During the procedure

ArmMeasureValue (MEDIAN)
Ultrasound ClosureTime to Hemostasis.42 Minutes
Secondary

Treatment Success

Time to Hemostasis ≤10 minutes and no VACR-2 Major complications

Time frame: within 30 days

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Ultrasound ClosureTreatment Success17 Participants

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026