NCT02974660

Brief Summary

Transcatheter aortic valve implantation (TAVI) is a new, rapidly emerging standard of care in inoperable and high-risk patients with severe, symptomatic aortic stenosis. Information regarding reversal of unfractionated heparin with protamine sulfate in order to facilitate access site closure is scarce and based on expert consensus. Clinical practice varies between centers. Protamine sulphate may decrease the amount of bleeding complications related to the access-site. The impact on possible thromboembolic complications is unknown. Both bleeding and thromboembolic complications increase mortality after TAVI. A randomized trial is required in order to assess impact of protamine sulfate on prevalence and extent of bleeding and thromboembolic complications.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
100

participants targeted

Target at P50-P75 for phase_4

Timeline
Completed

Started Dec 2016

Longer than P75 for phase_4

Geographic Reach
1 country

1 active site

Status
completed

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

First Submitted

Initial submission to the registry

October 10, 2016

Completed
2 months until next milestone

First Posted

Study publicly available on registry

November 28, 2016

Completed
3 days until next milestone

Study Start

First participant enrolled

December 1, 2016

Completed
3.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2020

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2020

Completed
Last Updated

October 22, 2020

Status Verified

October 1, 2020

Enrollment Period

3.6 years

First QC Date

October 10, 2016

Last Update Submit

October 21, 2020

Conditions

Outcome Measures

Primary Outcomes (1)

  • Bleeding complications

    Composite of life-threatening and major bleeding complications according to Valve Academic Research Consortium (VARC) criteria (unit of measure: 0/1 \[absence/presence\])

    48 hours or hospital discharge, whichever occurs first

Secondary Outcomes (4)

  • Successful closure of the access-site

    15 minutes

  • Thromboembolic complications

    5 days or hospital discharge, whichever occurs first

  • Assessment of peri-procedural myocardial muscle injury

    24 hours

  • All-cause mortality

    30 days

Study Arms (2)

Protamine sulfate

ACTIVE COMPARATOR

After obtaining optimal valve deployment patients will receive protamine sulfate (1 mg for each 100 units of UFH i.v.). Measurement of activated clotting time (ACT) will be performed (after heparin administration and after protamine sulfate administration).

Drug: Protamine sulfate

0.9% NaCl

PLACEBO COMPARATOR

After obtaining optimal valve deployment patients will receive 0.9% saline (20 ml i.v.). Measurement of activated clotting time (ACT) will be performed (after heparin administration and after placebo administration).

Drug: 0.9% NaCl

Interventions

Protamine sulfate
0.9% NaCl

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • patients who underwent successful TAVI
  • with any approved TAVI device
  • via transfemoral access
  • with use of any of the approved vascular closure devices
  • provided written informed consent

You may not qualify if:

  • no consent
  • periprocedural complications requiring continuation of heparin or administration of protamine sulfate
  • alergy to fish, protamine, protamine derivates, history of Humulin N, Novolin N, Novolin NPH, Gensulin N, SciLin N, NPH Iletin II and isophane insulin intake

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

First Department of Cardiology, Medical University of Warsaw

Warsaw, Poland

Location

Related Publications (7)

  • Kappetein AP, Head SJ, Genereux P, Piazza N, van Mieghem NM, Blackstone EH, Brott TG, Cohen DJ, Cutlip DE, van Es GA, Hahn RT, Kirtane AJ, Krucoff MW, Kodali S, Mack MJ, Mehran R, Rodes-Cabau J, Vranckx P, Webb JG, Windecker S, Serruys PW, Leon MB. Updated standardized endpoint definitions for transcatheter aortic valve implantation: the Valve Academic Research Consortium-2 consensus document. Eur Heart J. 2012 Oct;33(19):2403-18. doi: 10.1093/eurheartj/ehs255.

    PMID: 23026477BACKGROUND
  • Holmes DR Jr, Mack MJ, Kaul S, Agnihotri A, Alexander KP, Bailey SR, Calhoon JH, Carabello BA, Desai MY, Edwards FH, Francis GS, Gardner TJ, Kappetein AP, Linderbaum JA, Mukherjee C, Mukherjee D, Otto CM, Ruiz CE, Sacco RL, Smith D, Thomas JD, Harrington RA, Bhatt DL, Ferrari VA, Fisher JD, Garcia MJ, Gardner TJ, Gentile F, Gilson MF, Hernandez AF, Jacobs AK, Kaul S, Linderbaum JA, Moliterno DJ, Weitz HH; American Heart Association; American Society of Echocardiography; European Association for Cardio-Thoracic Surgery; Heart Failure Society of America; Mended Hearts; Society of Cardiovascular Anesthesiologists; Society of Cardiovascular Computed Tomography; Society for Cardiovascular Magnetic Resonance. 2012 ACCF/AATS/SCAI/STS expert consensus document on transcatheter aortic valve replacement: developed in collabration with the American Heart Association, American Society of Echocardiography, European Association for Cardio-Thoracic Surgery, Heart Failure Society of America, Mended Hearts, Society of Cardiovascular Anesthesiologists, Society of Cardiovascular Computed Tomography, and Society for Cardiovascular Magnetic Resonance. J Thorac Cardiovasc Surg. 2012 Sep;144(3):e29-84. doi: 10.1016/j.jtcvs.2012.03.001. No abstract available.

  • Rodes-Cabau J, Dauerman HL, Cohen MG, Mehran R, Small EM, Smyth SS, Costa MA, Mega JL, O'Donoghue ML, Ohman EM, Becker RC. Antithrombotic treatment in transcatheter aortic valve implantation: insights for cerebrovascular and bleeding events. J Am Coll Cardiol. 2013 Dec 24;62(25):2349-2359. doi: 10.1016/j.jacc.2013.03.029. Epub 2013 Apr 10.

  • Linke A, Wenaweser P, Gerckens U, Tamburino C, Bosmans J, Bleiziffer S, Blackman D, Schafer U, Muller R, Sievert H, Sondergaard L, Klugmann S, Hoffmann R, Tchetche D, Colombo A, Legrand VM, Bedogni F, lePrince P, Schuler G, Mazzitelli D, Eftychiou C, Frerker C, Boekstegers P, Windecker S, Mohr FW, Woitek F, Lange R, Bauernschmitt R, Brecker S; ADVANCE study Investigators. Treatment of aortic stenosis with a self-expanding transcatheter valve: the International Multi-centre ADVANCE Study. Eur Heart J. 2014 Oct 7;35(38):2672-84. doi: 10.1093/eurheartj/ehu162. Epub 2014 Mar 28.

  • Borz B, Durand E, Godin M, Tron C, Canville A, Litzler PY, Bessou JP, Cribier A, Eltchaninoff H. Incidence, predictors and impact of bleeding after transcatheter aortic valve implantation using the balloon-expandable Edwards prosthesis. Heart. 2013 Jun;99(12):860-5. doi: 10.1136/heartjnl-2012-303095. Epub 2012 Dec 12.

  • Gauthier C, Astarci P, Baele P, Matta A, Kahn D, Kefer J, Momeni M. Mid-term survival after transcatheter aortic valve implantation: Results with respect to the anesthetic management and to the access route (transfemoral versus transapical). Ann Card Anaesth. 2015 Jul-Sep;18(3):343-51. doi: 10.4103/0971-9784.159804.

  • Zbronski K, Grodecki K, Gozdowska R, Ostrowska E, Wysinska J, Rymuza B, Scislo P, Wilimski R, Kochman J, Filipiak KJ, Opolski G, Huczek Z. Protamine sulfate during transcatheter aortic valve implantation (PS TAVI) - a single-center, single-blind, randomized placebo-controlled trial. Kardiol Pol. 2021;79(9):995-1002. doi: 10.33963/KP.a2021.0070. Epub 2021 Jul 22.

MeSH Terms

Conditions

Aortic Valve Stenosis

Interventions

ProtaminesSaline Solution

Condition Hierarchy (Ancestors)

Aortic Valve DiseaseHeart Valve DiseasesHeart DiseasesCardiovascular DiseasesVentricular Outflow Obstruction

Intervention Hierarchy (Ancestors)

Nuclear ProteinsProteinsAmino Acids, Peptides, and ProteinsNucleoproteinsCrystalloid SolutionsIsotonic SolutionsSolutionsPharmaceutical Preparations

Study Design

Study Type
interventional
Phase
phase 4
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

October 10, 2016

First Posted

November 28, 2016

Study Start

December 1, 2016

Primary Completion

July 1, 2020

Study Completion

September 1, 2020

Last Updated

October 22, 2020

Record last verified: 2020-10

Locations