Symptomatic Aortic StenosisPhase 4REACTIC-TAVINCT04331145

Platelet REACtivity According to TICagrelor Dose After Transcatheter AorticValve Implantation

A Phase 4 study testing Ticagrelor 60mg in people with Symptomatic Aortic Stenosis, run by Andres Iñiguez Romo at 1 site in Spain.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record

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Trial summary

Who is it for?: Ages 18 years and older
Conditions the study is for: Symptomatic Aortic Stenosis
What is being tested?: Ticagrelor 60mg
Could I receive a placebo?: No, everyone receives an active treatment
How many people: 40 participants
Where: 1 siteSpain
Study dates: 23 Jun 2020to 28 Feb 2022
Phase: Phase 4
Are there results?: None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

Ages 18 years and older
All sexes
No healthy volunteers
Adult, Older adult

Who may be able to join

Diagnosed with severe symptomatic aortic stenosis
Accepted for transfemoral TAVI by a Heart Team decision
Evaluation of platelet reactivity assessed by VerifyNow® assay prior TAVI

Who cannot join

Contraindication to TAVI
TAVI performed by a different access route than transfemoral
Ned for oral anticoagulation therapy
History of intracranial hemorrhage
Ischemic stroke the 14 days before TAVI
Active pathological bleeding or diathesis

Show all 12Show fewer

Moderate to severe hepatic impairment
Use of strong CYP34A inhibitors or inducers
Contraindications to DAPT for 3 months
Contraindication to clopidogrel or ticagrelor
Platelet count <50,000
Pregnancy or breastfeeding

Trial locations and contacts

1 site in 1 country.

Spain1 site

Hospital Alvaro Cunqueiro
Vigo, Pontevedra, 36312

Other trials in Spain

About this study

Official title: REACTIC-TAVI Trial: Platelet REACtivity According to TICagrelor Dose After Transcatheter AorticValve Implantation. A Pilot Study.

The narrowing of the aortic valve, which prevents blood from reaching the entire body correctly is a common disease in our environment. To correct this problem, many patients undergo Transcatheter Aortic Valve Implantation (TAVI) according to standard clinical practice. Patients have to continue with a specific pharmacological treatment (antiplatelet agents) to avoid possible complications during the first months after the procedure. This treatment is not yet well established. Current guidelines recommend dual antiplatelet therapy with Aspirin and Clopidogrel for 3-6 months after TAVI to avoid thromboembolic complications. But the risk of bleeding events with DAPT in this population is not negligible.

This study aims to determine the degree of response to Ticagrelor 60 mg every 12 hours as a single antiplatelet strategy in patients who do not achieve an adequate response with Clopidogrel 75mg every 24 hours. The study will evaluate if patients have an adequate response to Clopidogrel and if not, then patients will start treatment with Ticagrelor 60 mg every 12 hours after TAVI and until completing 3 months of treatment.

Conditions: Symptomatic Aortic Stenosis
Being tested: Ticagrelor 60mg
Keywords: Transcatheter aortic valve implantation (TAVI), Transcatheter aortic valve replacement (TAVR), Antiplatelet therapy, Ticagrelor, Clopidogrel

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Ticagrelor 60mgDrug
Also called High platelet reactivity patients
Platelet reactivity will be assessed by VerifyNow P2Y12 assay in ALL enrolled patients after confirmed use of clopidogrel for 4 days prior TAVI. Patients that have not completed a pre-treatment period of 4 days of clopidogrel will receive a loading dose of 300mg, according to the clinical practice, with assessment of platelet reactivity by VerifyNow P2Y12 at the following 6 hours. Based on results of basal VerifyNow P2Y12 assay at least 24 hours before the index-TAVI procedure, patients with:
High on-treatment platelet reactivity (PRU ≥ 160 assessed with VerifyNow P2Y12 assay): Patients will be switched to receive ticagrelor 60mg twice daily initiating at least 24hrs before TAVI procedure, in order to arrive to the index TAVI procedure with at least two doses of 60 mg, and will continue with Ticagrelor 60mg twice per day during the following three months.

Study groups in NCT04331145
Study group	Role	What they receive
Clopidogrel 75 mg	No intervention	Platelet reactivity will be assessed by VerifyNow P2Y12 assay in ALL enrolled patients after confirmed use of clopidogrel for 4 days prior TAVI. Patients that have not completed a pre-treatment period of 4 days of clopidogrel will receive a loading dose of 300mg, according to the clinical practice, with assessment of platelet reactivity by VerifyNow P2Y12 at the following 6 hours. Based on results of basal VerifyNow P2Y12 assay at least 24 hours before the index-TAVI procedure, patients with: Normal basal platelet reactivity (PRU < 160 assessed with VerifyNow P2Y12 assay): Patients will continue with clopidogrel 75 mg/day until TAVI and during the following three months. All patients will be assessed by clinical follow up and platelet reactivity according to the protocol. Prescription of aspirin 100mg/day will be encourage as per guidelines recommendations.
Ticagrelor 60 mg	Active comparator	Platelet reactivity will be assessed by VerifyNow P2Y12 assay in ALL enrolled patients after confirmed use of clopidogrel for 4 days prior TAVI. Patients that have not completed a pre-treatment period of 4 days of clopidogrel will receive a loading dose of 300mg, according to the clinical practice, with assessment of platelet reactivity by VerifyNow P2Y12 at the following 6 hours. Based on results of basal VerifyNow P2Y12 assay at least 24 hrs before the index-TAVI procedure, patients with: High on-treatment platelet reactivity (PRU ≥ 160 assessed with VerifyNow P2Y12 assay): Patients will be switched to receive ticagrelor 60mg twice daily initiating at least 24 hours before TAVI procedure, in order to arrive to the index TAVI procedure with at least two doses of 60 mg, and will continue with Ticagrelor 60mg twice per day during the following three months. Receives: Drug: Ticagrelor 60mg

What is being measured

The primary outcome is the main question the study is designed to answer.

Efficacy of treatment in suppressing High Platelet Reactivity
Assess the efficacy of ticagrelor 60 mg/12 hours in suppressing High Platelet Reactivity after TAVI. Platelet reactivity will be assessed by VerifyNow P2Y12.
Measured: At least 24 hours before the index-TAVI procedure
Efficacy of treatment in suppressing High Platelet Reactivity
Assess the efficacy of ticagrelor 60 mg/12 hours in suppressing High Platelet Reactivity after TAVI. Platelet reactivity will be assessed by VerifyNow P2Y12.
Measured: 24 ± 2 hour post TAVI
Efficacy of treatment in suppressing High Platelet Reactivity
Assess the efficacy of ticagrelor 60 mg/12 hours in suppressing High Platelet Reactivity after TAVI. Platelet reactivity will be assessed by VerifyNow P2Y12.
Measured: 30 ± 7 days post TAVI
Efficacy of treatment in suppressing High Platelet Reactivity
Assess the efficacy of ticagrelor 60 mg/12 hours in suppressing High Platelet Reactivity after TAVI. Platelet reactivity will be assessed by VerifyNow P2Y12.
Measured: 90 ± 7 days post TAVI

Secondary outcomes (5)

Security: incidence of hemorrhagic complications
Evaluate the incidence of hemorrhagic complications after TAVI. As safety endpoint we will assess the incidence of investigator-reported clinical events according to VARC-2 criteria (death, myocardial infarction, stroke, TIA, acute renal injury, bleeding, vascular access-site and access-related complications), including BARC bleeding definitions. For safety endpoint, all BARC criteria, included in VARC-2 criteria will be recorded.
Measured: 1) At least 24 hours before the index-TAVI procedure 2) 3) 4) 5)
Security: incidence of hemorrhagic complications
Evaluate the incidence of hemorrhagic complications after TAVI. As safety endpoint we will assess the incidence of investigator-reported clinical events according to VARC-2 criteria (death, myocardial infarction, stroke, TIA, acute renal injury, bleeding, vascular access-site and access-related complications), including BARC bleeding definitions. For safety endpoint, all BARC criteria, included in VARC-2 criteria will be recorded.
Measured: 24 ± 2 hour post TAVI
Security: incidence of hemorrhagic complications
Evaluate the incidence of hemorrhagic complications after TAVI. As safety endpoint we will assess the incidence of investigator-reported clinical events according to VARC-2 criteria (death, myocardial infarction, stroke, TIA, acute renal injury, bleeding, vascular access-site and access-related complications), including BARC bleeding definitions. For safety endpoint, all BARC criteria, included in VARC-2 criteria will be recorded.
Measured: 30 ± 7 days post TAVI
Security: incidence of hemorrhagic complications
Evaluate the incidence of hemorrhagic complications after TAVI. As safety endpoint we will assess the incidence of investigator-reported clinical events according to VARC-2 criteria (death, myocardial infarction, stroke, TIA, acute renal injury, bleeding, vascular access-site and access-related complications), including BARC bleeding definitions. For safety endpoint, all BARC criteria, included in VARC-2 criteria will be recorded.
Measured: 90 ± 7 days post TAVI
Security: incidence of hemorrhagic complications
Evaluate the incidence of hemorrhagic complications after TAVI. As safety endpoint we will assess the incidence of investigator-reported clinical events according to VARC-2 criteria (death, myocardial infarction, stroke, TIA, acute renal injury, bleeding, vascular access-site and access-related complications), including BARC bleeding definitions. For safety endpoint, all BARC criteria, included in VARC-2 criteria will be recorded.
Measured: 120 ± 7 days post TAVI

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

23 Jun 202028 Feb 2022

First posted2 Apr 2020
Study start23 Jun 2020
Primary completion28 Feb 2021
Study completion28 Feb 2022

Resources

Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
Publications (26)Papers the sponsor has linked to this study.
Other trials for Symptomatic Aortic StenosisStudies of the same condition, open and under way.
What the trial phases meanHow a treatment moves from first tests in people to approval.

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design

Study type: Interventional
Phase: Phase 4
Primary purpose: Treatment
Allocation: Non-randomised
Intervention model: Parallel groups
Masking: None (open label)
Enrolment: 40 participants (actual)

IDs, dates and publications

ClinicalTrials.gov ID: NCT04331145
Sponsor's protocol ID: REACTIC2019-HAC
Other IDs: 2019-004860-23, 2019
Acronym: REACTIC-TAVI
Status last verified: Feb 2022
First submitted: 24 Mar 2020
Last updated: 2 Mar 2022
Results posted: No
Data monitoring committee: Yes
FDA-regulated drug: No
FDA-regulated device: No
Individual data sharing: No

Publications

Cannon CP, Husted S, Harrington RA, Scirica BM, Emanuelsson H, Peters G, Storey RF; DISPERSE-2 Investigators. Safety, tolerability, and initial efficacy of AZD6140, the first reversible oral adenosine diphosphate receptor antagonist, compared with clopidogrel, in patients with non-ST-segment elevation acute coronary syndrome: primary results of the DISPERSE-2 trial. J Am Coll Cardiol. 2007 Nov 6;50(19):1844-51. doi: 10.1016/j.jacc.2007.07.053. Epub 2007 Oct 23.
PubMed 17980250
Wallentin L, Becker RC, Budaj A, Cannon CP, Emanuelsson H, Held C, Horrow J, Husted S, James S, Katus H, Mahaffey KW, Scirica BM, Skene A, Steg PG, Storey RF, Harrington RA; PLATO Investigators; Freij A, Thorsen M. Ticagrelor versus clopidogrel in patients with acute coronary syndromes. N Engl J Med. 2009 Sep 10;361(11):1045-57. doi: 10.1056/NEJMoa0904327. Epub 2009 Aug 30.
PubMed 19717846
James S, Akerblom A, Cannon CP, Emanuelsson H, Husted S, Katus H, Skene A, Steg PG, Storey RF, Harrington R, Becker R, Wallentin L. Comparison of ticagrelor, the first reversible oral P2Y(12) receptor antagonist, with clopidogrel in patients with acute coronary syndromes: Rationale, design, and baseline characteristics of the PLATelet inhibition and patient Outcomes (PLATO) trial. Am Heart J. 2009 Apr;157(4):599-605. doi: 10.1016/j.ahj.2009.01.003.
PubMed 19332184
Toma N. Randomized double-blind assessment of the ONSET and OFFSET of the antiplatelet effects of Ticagrelor versus Clopidogrel in patients with stable coronary artery disease. The ONSET/OFFSET study. Maedica (Bucur). 2010 Jan;5(1):75-6. No abstract available.
PubMed 21977127
Adams HP Jr. Ticagrelor, a new antiplatelet agent, for prevention of ischemic events in patients with coronary artery disease. Curr Neurol Neurosci Rep. 2010 Jan;10(1):4-6. doi: 10.1007/s11910-009-0082-x. No abstract available.
PubMed 20425218
Steg PG, James S, Harrington RA, Ardissino D, Becker RC, Cannon CP, Emanuelsson H, Finkelstein A, Husted S, Katus H, Kilhamn J, Olofsson S, Storey RF, Weaver WD, Wallentin L; PLATO Study Group. Ticagrelor versus clopidogrel in patients with ST-elevation acute coronary syndromes intended for reperfusion with primary percutaneous coronary intervention: A Platelet Inhibition and Patient Outcomes (PLATO) trial subgroup analysis. Circulation. 2010 Nov 23;122(21):2131-41. doi: 10.1161/CIRCULATIONAHA.109.927582. Epub 2010 Nov 8.
PubMed 21060072
Varenhorst C, Alstrom U, Scirica BM, Hogue CW, Asenblad N, Storey RF, Steg PG, Horrow J, Mahaffey KW, Becker RC, James S, Cannon CP, Brandrup-Wognsen G, Wallentin L, Held C. Factors contributing to the lower mortality with ticagrelor compared with clopidogrel in patients undergoing coronary artery bypass surgery. J Am Coll Cardiol. 2012 Oct 23;60(17):1623-30. doi: 10.1016/j.jacc.2012.07.021. Epub 2012 Sep 26.
PubMed 23021325
Jeong YH, Bliden KP, Antonino MJ, Park KS, Tantry US, Gurbel PA. Usefulness of the VerifyNow P2Y12 assay to evaluate the antiplatelet effects of ticagrelor and clopidogrel therapies. Am Heart J. 2012 Jul;164(1):35-42. doi: 10.1016/j.ahj.2012.03.022. Epub 2012 Jun 13.
PubMed 22795280
Theidel U, Asseburg C, Giannitsis E, Katus H. Cost-effectiveness of ticagrelor versus clopidogrel for the prevention of atherothrombotic events in adult patients with acute coronary syndrome in Germany. Clin Res Cardiol. 2013 Jun;102(6):447-58. doi: 10.1007/s00392-013-0552-7. Epub 2013 Mar 9.
PubMed 23474908
Bergmeijer TO, Janssen PW, Schipper JC, Qaderdan K, Ishak M, Ruitenbeek RS, Asselbergs FW, van 't Hof AW, Dewilde WJ, Spano F, Herrman JP, Kelder JC, Postma MJ, de Boer A, Deneer VH, ten Berg JM. CYP2C19 genotype-guided antiplatelet therapy in ST-segment elevation myocardial infarction patients-Rationale and design of the Patient Outcome after primary PCI (POPular) Genetics study. Am Heart J. 2014 Jul;168(1):16-22.e1. doi: 10.1016/j.ahj.2014.03.006. Epub 2014 Mar 21.
PubMed 24952855
Jeong KH, Cho JH, Woo JS, Kim JB, Kim WS, Lee TW, Kim KS, Ihm CG, Kim W. Platelet reactivity after receiving clopidogrel compared with ticagrelor in patients with kidney failure treated with hemodialysis: a randomized crossover study. Am J Kidney Dis. 2015 Jun;65(6):916-24. doi: 10.1053/j.ajkd.2014.11.023. Epub 2015 Jan 24.
PubMed 25622774
Cho JR, Rollini F, Franchi F, DeGroat C, Bhatti M, Dunn EC, Ferrante E, Muniz-Lozano A, Suryadevara S, Zenni MM, Guzman LA, Bass TA, Angiolillo DJ. Pharmacodynamic Effects of Ticagrelor Dosing Regimens in Patients on Maintenance Ticagrelor Therapy: Results From a Prospective, Randomized, Double-Blind Investigation. JACC Cardiovasc Interv. 2015 Jul;8(8):1075-1083. doi: 10.1016/j.jcin.2015.02.022. Epub 2015 Jun 24.
PubMed 26117466
Alexopoulos D, Perperis A, Koniari I, Karvounis H, Patsilinakos S, Ziakas A, Barampoutis N, Panagiotidis T, Akinosoglou K, Hahalis G, Xanthopoulou I. Ticagrelor versus high dose clopidogrel in ST-segment elevation myocardial infarction patients with high platelet reactivity post fibrinolysis. J Thromb Thrombolysis. 2015 Oct;40(3):261-7. doi: 10.1007/s11239-015-1183-9.
PubMed 25680893
Thomas MR, Outteridge SN, Ajjan RA, Phoenix F, Sangha GK, Faulkner RE, Ecob R, Judge HM, Khan H, West LE, Dockrell DH, Sabroe I, Storey RF. Platelet P2Y12 Inhibitors Reduce Systemic Inflammation and Its Prothrombotic Effects in an Experimental Human Model. Arterioscler Thromb Vasc Biol. 2015 Dec;35(12):2562-70. doi: 10.1161/ATVBAHA.115.306528. Epub 2015 Oct 29.
PubMed 26515417
Andell P, James SK, Cannon CP, Cyr DD, Himmelmann A, Husted S, Keltai M, Koul S, Santoso A, Steg PG, Storey RF, Wallentin L, Erlinge D; PLATO Investigators. Ticagrelor Versus Clopidogrel in Patients With Acute Coronary Syndromes and Chronic Obstructive Pulmonary Disease: An Analysis From the Platelet Inhibition and Patient Outcomes (PLATO) Trial. J Am Heart Assoc. 2015 Oct 9;4(10):e002490. doi: 10.1161/JAHA.115.002490.
PubMed 26452988

Want to know more?

The sponsor has not listed a contact. The official record may have more details.

Talk to your doctor first and take this page with you. Only the study team can confirm whether you can join.

Questions to ask the study team

What is the study trying to find out?
What would I need to do, and how often would I visit?
Could I receive a placebo instead of the treatment?
What are the possible risks and benefits for me?
Will it cost me anything? Are travel or time paid for?
Can I keep seeing my own doctor during the study?
What happens when the study ends?

See locations

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All Symptomatic Aortic Stenosis trials

Study at a glance

From the registry record, last updated by the sponsor on 2 Mar 2022. Recruitment status is as the sponsor reported it: confirm with the study team.

Official title: REACTIC-TAVI Trial: Platelet REACtivity According to TICagrelor Dose After Transcatheter AorticValve Implantation. A Pilot Study.
ClinicalTrials.gov ID: NCT04331145
Acronym / sponsor ID: REACTIC-TAVI / REACTIC2019-HAC
Conditions: Symptomatic Aortic Stenosis
Keywords: Transcatheter aortic valve implantation (TAVI), Transcatheter aortic valve replacement (TAVR), Antiplatelet therapy, Ticagrelor, Clopidogrel
Phase: Phase 4
Study type: Interventional
Recruitment status: Completed
Enrolment: 40 participants (actual)
Lead sponsor: Andres Iñiguez RomoUniversity, hospital or other
Study start: 23 Jun 2020 (actual)
Primary completion: 28 Feb 2021 (actual)
Study completion: 28 Feb 2022 (actual)
First posted: 2 Apr 2020 (actual)
Results: Not posted in the source record

Clinical summary

The research question as the sponsor registered it. This describes what the study plans to test, not what it found.

Study design

Primary purpose: Treatment
Allocation: Non-randomised
Intervention model: Parallel groups
Masking: None (open label)
Number of arms: 2

Arm	Type	Receives
Clopidogrel 75 mg	No intervention	–Platelet reactivity will be assessed by VerifyNow P2Y12 assay in ALL enrolled patients after confirmed use of clopidogrel for 4 days prior TAVI. Patients that have not completed a pre-treatment period of 4 days of clopidogrel will receive a loading dose of 300mg, according to the clinical practice, with assessment of platelet reactivity by VerifyNow P2Y12 at the following 6 hours. Based on results of basal VerifyNow P2Y12 assay at least 24 hours before the index-TAVI procedure, patients with: Normal basal platelet reactivity (PRU < 160 assessed with VerifyNow P2Y12 assay): Patients will continue with clopidogrel 75 mg/day until TAVI and during the following three months. All patients will be assessed by clinical follow up and platelet reactivity according to the protocol. Prescription of aspirin 100mg/day will be encourage as per guidelines recommendations.
Ticagrelor 60 mg	Active comparator	Drug: Ticagrelor 60mgPlatelet reactivity will be assessed by VerifyNow P2Y12 assay in ALL enrolled patients after confirmed use of clopidogrel for 4 days prior TAVI. Patients that have not completed a pre-treatment period of 4 days of clopidogrel will receive a loading dose of 300mg, according to the clinical practice, with assessment of platelet reactivity by VerifyNow P2Y12 at the following 6 hours. Based on results of basal VerifyNow P2Y12 assay at least 24 hrs before the index-TAVI procedure, patients with: High on-treatment platelet reactivity (PRU ≥ 160 assessed with VerifyNow P2Y12 assay): Patients will be switched to receive ticagrelor 60mg twice daily initiating at least 24 hours before TAVI procedure, in order to arrive to the index TAVI procedure with at least two doses of 60 mg, and will continue with Ticagrelor 60mg twice per day during the following three months.

Who may qualify

Ages: 18 years and older
Sex: All
Healthy volunteers: Not accepted
Age groups: Adult, Older adult

Key inclusion criteria (3 listed)

Diagnosed with severe symptomatic aortic stenosis
Accepted for transfemoral TAVI by a Heart Team decision
Evaluation of platelet reactivity assessed by VerifyNow® assay prior TAVI

Key exclusion criteria (12 listed)

Contraindication to TAVI
TAVI performed by a different access route than transfemoral
Ned for oral anticoagulation therapy
History of intracranial hemorrhage
Ischemic stroke the 14 days before TAVI

Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.

Interventions

Intervention	Type	Arms
Ticagrelor 60mgAlso: High platelet reactivity patientsPlatelet reactivity will be assessed by VerifyNow P2Y12 assay in ALL enrolled patients after confirmed use of clopidogrel for 4 days prior TAVI. Patients that have not completed a pre-treatment period of 4 days of clopidogrel will receive a loading dose of 300mg, according to the clinical practice, with assessment of platelet reactivity by VerifyNow P2Y12 at the following 6 hours. Based on results of basal VerifyNow P2Y12 assay at least 24 hours before the index-TAVI procedure, patients with: High on-treatment platelet reactivity (PRU ≥ 160 assessed with VerifyNow P2Y12 assay): Patients will be switched to receive ticagrelor 60mg twice daily initiating at least 24hrs before TAVI procedure, in order to arrive to the index TAVI procedure with at least two doses of 60 mg, and will continue with Ticagrelor 60mg twice per day during the following three months.	Drug	Ticagrelor 60 mg

Primary outcome

Efficacy of treatment in suppressing High Platelet Reactivity
Time frame: At least 24 hours before the index-TAVI procedure
Assess the efficacy of ticagrelor 60 mg/12 hours in suppressing High Platelet Reactivity after TAVI. Platelet reactivity will be assessed by VerifyNow P2Y12.
Efficacy of treatment in suppressing High Platelet Reactivity
Time frame: 24 ± 2 hour post TAVI
Assess the efficacy of ticagrelor 60 mg/12 hours in suppressing High Platelet Reactivity after TAVI. Platelet reactivity will be assessed by VerifyNow P2Y12.
Efficacy of treatment in suppressing High Platelet Reactivity
Time frame: 30 ± 7 days post TAVI
Assess the efficacy of ticagrelor 60 mg/12 hours in suppressing High Platelet Reactivity after TAVI. Platelet reactivity will be assessed by VerifyNow P2Y12.
Efficacy of treatment in suppressing High Platelet Reactivity
Time frame: 90 ± 7 days post TAVI
Assess the efficacy of ticagrelor 60 mg/12 hours in suppressing High Platelet Reactivity after TAVI. Platelet reactivity will be assessed by VerifyNow P2Y12.

5 secondary outcomes

Security: incidence of hemorrhagic complications
Time frame: 1) At least 24 hours before the index-TAVI procedure 2) 3) 4) 5)
Security: incidence of hemorrhagic complications
Time frame: 24 ± 2 hour post TAVI
Security: incidence of hemorrhagic complications
Time frame: 30 ± 7 days post TAVI
Security: incidence of hemorrhagic complications
Time frame: 90 ± 7 days post TAVI
Security: incidence of hemorrhagic complications
Time frame: 120 ± 7 days post TAVI

Results and safety

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

Research links

Official record on ClinicalTrials.govLast updated by the sponsor 2 Mar 2022.
Background: PubMed 17980250Cannon CP, Husted S, Harrington RA, Scirica BM, Emanuelsson H, Peters G, Storey RF; DISPERSE-2 Investigators. Safety, tolerability, and initial efficacy of AZD6140, the first reversible oral adenosine diphosphate receptor antagonist, compared with clopidogrel, in patients with non-ST-segment elevation acute coronary syndrome: primary results of the DISPERSE-2 trial. J Am Coll Cardiol. 2007 Nov 6;50(19):1844-51. doi: 10.1016/j.jacc.2007.07.053. Epub 2007 Oct 23.
Background: PubMed 19717846Wallentin L, Becker RC, Budaj A, Cannon CP, Emanuelsson H, Held C, Horrow J, Husted S, James S, Katus H, Mahaffey KW, Scirica BM, Skene A, Steg PG, Storey RF, Harrington RA; PLATO Investigators; Freij A, Thorsen M. Ticagrelor versus clopidogrel in patients with acute coronary syndromes. N Engl J Med. 2009 Sep 10;361(11):1045-57. doi: 10.1056/NEJMoa0904327. Epub 2009 Aug 30.
Background: PubMed 19332184James S, Akerblom A, Cannon CP, Emanuelsson H, Husted S, Katus H, Skene A, Steg PG, Storey RF, Harrington R, Becker R, Wallentin L. Comparison of ticagrelor, the first reversible oral P2Y(12) receptor antagonist, with clopidogrel in patients with acute coronary syndromes: Rationale, design, and baseline characteristics of the PLATelet inhibition and patient Outcomes (PLATO) trial. Am Heart J. 2009 Apr;157(4):599-605. doi: 10.1016/j.ahj.2009.01.003.
Background: PubMed 21977127Toma N. Randomized double-blind assessment of the ONSET and OFFSET of the antiplatelet effects of Ticagrelor versus Clopidogrel in patients with stable coronary artery disease. The ONSET/OFFSET study. Maedica (Bucur). 2010 Jan;5(1):75-6. No abstract available.
Background: PubMed 20425218Adams HP Jr. Ticagrelor, a new antiplatelet agent, for prevention of ischemic events in patients with coronary artery disease. Curr Neurol Neurosci Rep. 2010 Jan;10(1):4-6. doi: 10.1007/s11910-009-0082-x. No abstract available.
Background: PubMed 21060072Steg PG, James S, Harrington RA, Ardissino D, Becker RC, Cannon CP, Emanuelsson H, Finkelstein A, Husted S, Katus H, Kilhamn J, Olofsson S, Storey RF, Weaver WD, Wallentin L; PLATO Study Group. Ticagrelor versus clopidogrel in patients with ST-elevation acute coronary syndromes intended for reperfusion with primary percutaneous coronary intervention: A Platelet Inhibition and Patient Outcomes (PLATO) trial subgroup analysis. Circulation. 2010 Nov 23;122(21):2131-41. doi: 10.1161/CIRCULATIONAHA.109.927582. Epub 2010 Nov 8.
Background: PubMed 23021325Varenhorst C, Alstrom U, Scirica BM, Hogue CW, Asenblad N, Storey RF, Steg PG, Horrow J, Mahaffey KW, Becker RC, James S, Cannon CP, Brandrup-Wognsen G, Wallentin L, Held C. Factors contributing to the lower mortality with ticagrelor compared with clopidogrel in patients undergoing coronary artery bypass surgery. J Am Coll Cardiol. 2012 Oct 23;60(17):1623-30. doi: 10.1016/j.jacc.2012.07.021. Epub 2012 Sep 26.
Background: PubMed 22795280Jeong YH, Bliden KP, Antonino MJ, Park KS, Tantry US, Gurbel PA. Usefulness of the VerifyNow P2Y12 assay to evaluate the antiplatelet effects of ticagrelor and clopidogrel therapies. Am Heart J. 2012 Jul;164(1):35-42. doi: 10.1016/j.ahj.2012.03.022. Epub 2012 Jun 13.
Background: PubMed 23474908Theidel U, Asseburg C, Giannitsis E, Katus H. Cost-effectiveness of ticagrelor versus clopidogrel for the prevention of atherothrombotic events in adult patients with acute coronary syndrome in Germany. Clin Res Cardiol. 2013 Jun;102(6):447-58. doi: 10.1007/s00392-013-0552-7. Epub 2013 Mar 9.
Background: PubMed 24952855Bergmeijer TO, Janssen PW, Schipper JC, Qaderdan K, Ishak M, Ruitenbeek RS, Asselbergs FW, van 't Hof AW, Dewilde WJ, Spano F, Herrman JP, Kelder JC, Postma MJ, de Boer A, Deneer VH, ten Berg JM. CYP2C19 genotype-guided antiplatelet therapy in ST-segment elevation myocardial infarction patients-Rationale and design of the Patient Outcome after primary PCI (POPular) Genetics study. Am Heart J. 2014 Jul;168(1):16-22.e1. doi: 10.1016/j.ahj.2014.03.006. Epub 2014 Mar 21.
Background: PubMed 25622774Jeong KH, Cho JH, Woo JS, Kim JB, Kim WS, Lee TW, Kim KS, Ihm CG, Kim W. Platelet reactivity after receiving clopidogrel compared with ticagrelor in patients with kidney failure treated with hemodialysis: a randomized crossover study. Am J Kidney Dis. 2015 Jun;65(6):916-24. doi: 10.1053/j.ajkd.2014.11.023. Epub 2015 Jan 24.
Background: PubMed 26117466Cho JR, Rollini F, Franchi F, DeGroat C, Bhatti M, Dunn EC, Ferrante E, Muniz-Lozano A, Suryadevara S, Zenni MM, Guzman LA, Bass TA, Angiolillo DJ. Pharmacodynamic Effects of Ticagrelor Dosing Regimens in Patients on Maintenance Ticagrelor Therapy: Results From a Prospective, Randomized, Double-Blind Investigation. JACC Cardiovasc Interv. 2015 Jul;8(8):1075-1083. doi: 10.1016/j.jcin.2015.02.022. Epub 2015 Jun 24.
Individual participant dataSharing planned: No

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Referral and contact

AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.

Victor A Jimenez Diaz, MD, MPH principal investigator

Hospital Álvaro Cunqueiro

1 site in 1 country: see every site and its status.

Questions about this trial

What is this clinical trial studying?

A Phase 4 study testing Ticagrelor 60mg in people with Symptomatic Aortic Stenosis, run by Andres Iñiguez Romo at 1 site in Spain.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 12 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 2 Mar 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Spain. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 4 studies take place after a treatment is approved, to learn more about its long-term benefits and risks in everyday use.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Efficacy of treatment in suppressing High Platelet Reactivity (time frame: At least 24 hours before the index-TAVI procedure). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT04331145, which also lists 26 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Mar 2022.