Acute Coronary SyndromePhase 4CanTiNCT03182855
Cangrelor vs. Ticagrelor for Early Platelet Inhibition in STEMI
A Phase 4 study testing Ticagrelor and Cangrelor Tetrasodium in people with Acute Coronary Syndrome and Myocardial Infarction, run by University of Aarhus at 1 site in Denmark.
Trial summary
This randomized, controlled trial compares the anti-thrombotic effect of cangrelor and ticagrelor on platelet activity in patients with acute ST-elevation myocardial infarction. Patients will receive either prehospital ticagrelor (180 mg - crushed) or in-hospital cangrelor (bolus 30 μg/kg within 1 minute followed by… Read more about this study
- Who is it for?
- Ages 18 to 90 years
- Conditions the study is for
- Acute Coronary Syndrome, Myocardial Infarction, STEMI - ST Elevation Myocardial Infarction
- What is being tested?
- Ticagrelor and Cangrelor Tetrasodium
- Type of treatment
- Pill or oral medicine, Injection or infusion
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 80 participants
- Where
- 1 siteDenmark
- Study dates
- 1 Sep 2018to 1 Aug 2019
- 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 to 90 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients triaged for PPCI due to suspicion of STEMI.
- Symptom duration < 12 hours
Who cannot join
- Previous inclusion in the study
- Already in treatment with ticagrelor, prasugrel or clopidogrel
- Treatment with oral anticoagulants (warfarin, coumarins, rivaroxaban, apixaban, dabigatran)
- Adjunctive use of glycoprotein IIb/IIIa inhibitor during PCI
- Active bleeding
- Known, severe kidney failure (GFR < 30 ml/min) and/or liver disease
- Women of child bearing ability who are not using contraceptive medication
- Severe mental or psychiatric disease, altered mental state (including unconsciousness) making it impossible to achieve informed consent
Trial locations and contacts
1 site in 1 country.
Denmark1 site
Aarhus University Hospital
Aarhus, 8200
Jacob Thorsted Sorensen, MD, PhD, +4540143563, jacsoe@rm.dk
Steen D Kristensen, MD, DMSc, +4530922336, stekrist@rm.dk
About this study
Official title: Cangrelor vs. Ticagrelor for Early Platelet Inhibition in ST-elevation Myocardial Infarction
This randomized, controlled trial compares the anti-thrombotic effect of cangrelor and ticagrelor on platelet activity in patients with acute ST-elevation myocardial infarction.
Patients will receive either prehospital ticagrelor (180 mg - crushed) or in-hospital cangrelor (bolus 30 μg/kg within 1 minute followed by infusion (4 μg/kg/minute) for two hours) followed by 180 mg ticagrelor.
The primary study end-point is platelet reactivity at sheath insertion, at the end of the PCI procedure (before sheath removal) and two hours after PCI is initiated. The secondary end-point is the proportion of patients with inappropriate or harmful P2Y12 administration.
Read the detailed description
In patients with ST-elevation myocardial infarction (STEMI) early restoration of blood flow in the culprit coronary artery is essential to reduce infarct size and thereby mortality and morbidity. The recommended method for achieving reperfusion is primary percutaneous coronary intervention (PPCI) (1,2). Early initiation of adjunctive antithrombotic therapy is important to prevent further thrombus formation and to facilitate PPCI.
International guidelines currently recommend immediate oral or intravenous administration of aspirin and intravenous administration of heparin in patients with suspected STEMI (1,2).
A second platelet inhibitor (of the P2Y12 family) is often added already in the ambulance. This enhances the antiplatelet effect, but also increases bleeding risk.
A recently introduced antithrombotic agent, that can be administered intravenously, can potentially achieve the same antithrombotic effect at the same time of the oral agent, with the added benefit, that administration can await coronary angiography. This would reduce the risk of administrating powerful antithrombotic medicine to patients with diagnosis other than STEMI.
In the ATLANTIC trial (3) prehospital administration was compared to in-hospital (catheterization laboratory) administration of ticagrelor. The trial indicated that ticagrelor could safely be administered in the ambulance, although there was no apparent effect on Thrombolysis in Myocardial Infarction (TIMI) flow in the culprit coronary artery and no effect on ST-segment resolution in the ECG. However, the median time difference between ticagrelor administration in the two groups was only 31 minutes. This might not leave enough time for adequate platelet inhibition in the prehospital group.
In patients with NSTEMI (Non-ST-elevation myocardial infarction), pretreatment with prasugrel has been shown to be associated with increased bleeding risk and confers no benefit on ischemic outcomes (4). Thus, there are indications that the addition of oral P2Y12 inhibitor can await the coronary angiography, thereby minimizing the risk of excessive platelet inhibition in patients with a high bleeding risk or a potentially lethal differential diagnosis such as aortic dissection (5). Previous studies document that approximately 15% of patients with suspected STEMI have a final diagnosis other than an acute coronary syndrome (6). There is a fine balance between the benefit and possible deleterious effects of early, aggressive oral platelet inhibition in patients with suspected STEMI.
Recently a novel, intravenous P2Y12 inhibitor - cangrelor - has been released. Cangrelor enables immediate inhibition of the platelet P2Y12 inhibitor. The drug has a short half-life, is reversible and is only effective during administration (7). This contrasts with the available oral P2Y12 inhibitors, which all induce inhibition of the platelets for several days. Although ticagrelor is reversible, the platelet inhibition induced by this widely used, potent drug lasts for at least 3 days (8). The effects of cangrelor on platelet inhibition and clinical outcome have been documented in three, large clinical randomized trials (9-11).
Currently it is unknown whether platelet inhibition achieved by cangrelor administered in the catheterization laboratory is more effective compared to ticagrelor administered in the ambulance in patients with suspected STEMI.
The objective of this trial is to compare the effect of oral ticagrelor vs. intravenous cangrelor on platelet inhibition in ST-elevation myocardial infarction.
Patients will be included in the ambulance and randomized to one of two treatment groups; either to receive oral ticagrelor or intravenous cangrelor.
The study randomization will not be blinded to either investigator or patient (Open label, randomized, controlled clinical trial).
The hypothesis is that platelet inhibition with cangrelor administered intravenously in the catheterization laboratory after coronary angiography, but before PPCI is as effective as platelet inhibition achieved by ticagrelor administered orally in the ambulance in patients with suspected STEMI.
It is also assumed that administration of a P2Y12 inhibitor after coronary angiography reduces the proportion of inappropriate administration due to a final diagnosis other than STEMI.
- Conditions
- Acute Coronary Syndrome, Myocardial Infarction, STEMI - ST Elevation Myocardial Infarction
- Being tested
- Ticagrelor, Cangrelor Tetrasodium
- Keywords
- Acute Coronary Syndrome, STEMI, Platelet reactivity, Anti-thrombotic therapy
- Medical subject headings
- Acute Coronary Syndrome, Myocardial Infarction, ST Elevation Myocardial Infarction
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
TicagrelorDrug
Also called Brilique, Brilinta
ADP-receptor blocker. Oral formulation. Standard Therapy in Acute Myocardial Infarction. Administered in the ambulance in arm 1 and in the hospital (catheterization laboratory) in arm 2.
Cangrelor TetrasodiumDrug
Also called Kengrexal, Kengreal
Intravenous ADP-receptor blocker. Administered after hospital arrival in the catheterization laboratory.
| Study group | Role | What they receive |
|---|---|---|
| Prehospital ticagrelor | Active comparator | Ticagrelor 180 mg orally administered in the ambulance as soon as possible after inclusion and before coronary angiography. The two pills are chewed and swallowed with a glass of water.
In both groups heparin and bivalirudin will be administered as part of routine therapy. In hemodynamically compromised patients with a high thrombus load a glycoprotein IIb/IIIa inhibitor may be used as bail-out therapy (these patients will be excluded). These drugs are not deemed to be study medication. Receives: Drug: Ticagrelor |
| Inhospital cangrelor tetrasodium | Active comparator | Ticagrelor 180 mg orally in combination with cangrelor intravenously (bolus 30 μg/kg within 1 minute followed by infusion (4 μg/kg/minute) for two hours) both administered immediately after coronary angiography, when PPCI is indicated.
In both groups heparin and bivalirudin will be administered as part of routine therapy. In hemodynamically compromised patients with a high thrombus load a glycoprotein IIb/IIIa inhibitor may be used as bail-out therapy (these patients will be excluded). These drugs are not deemed to be study medication. Receives: Drug: Ticagrelor; Drug: Cangrelor Tetrasodium |
What is being measured
The primary outcome is the main question the study is designed to answer.
Platelet reactivity 10 minutes PCI after is initiated
Platelet reactivity measured in platelet reactivity units (PRU) by the VerifyNow® assay 10 minutes after PCI is initiated.
Measured: 10 minutes
Secondary outcomes (2)
Platelet reactivity before and after PCI
Effect on platelet reactivity, measured by VerifyNow® after sheath insertion, at the end of the PCI procedure (before sheath removal) and two hours after PCI is initiated
Measured: 2 hours
Proportion of patients with inappropriate or harmful P2Y12 administration
This is defined as patients with a diagnosis other than acute myocardial infarction or patients where prehospital ticagrelor administration delays surgery (cardiac or other) due to excess bleeding risk.
Measured: 4 hours
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Jun 2017
- Study start1 Sep 2018 (estimated)
- Primary completion1 Jun 2019 (estimated)
- Study completion1 Aug 2019 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (15)Papers the sponsor has linked to this study.
- Other trials for Acute Coronary SyndromeStudies of the same condition, open and under way.
- More trials run by University of AarhusThe sponsor's other registered studies.
- 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
- Randomised
- Intervention model
- Parallel groups
- Model description
- Randomized trial. No blinding
- Masking
- None (open label)
- Enrolment
- 80 participants (estimated)
Sponsor and investigators
- Lead sponsor
- University of Aarhus
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Jacob Sørensen, University of Aarhus
- Investigators
- Jacob T Sorensen, MD, PhD, Principal investigator, Aarhus University Hospital, Department of Cardiology, SkejbySteen D Kristensen, MD, DMSc, Study director, Aarhus University Hospital, Department of Cardiology, Skejby
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT03182855
- Sponsor's protocol ID
- 2016-003721-41
- Other IDs
- 2016
- Acronym
- CanTi
- Status last verified
- Jun 2018
- First submitted
- 7 Jun 2017
- Last updated
- 28 Jun 2018
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Publications
Task Force on the management of ST-segment elevation acute myocardial infarction of the European Society of Cardiology (ESC); Steg PG, James SK, Atar D, Badano LP, Blomstrom-Lundqvist C, Borger MA, Di Mario C, Dickstein K, Ducrocq G, Fernandez-Aviles F, Gershlick AH, Giannuzzi P, Halvorsen S, Huber K, Juni P, Kastrati A, Knuuti J, Lenzen MJ, Mahaffey KW, Valgimigli M, van 't Hof A, Widimsky P, Zahger D. ESC Guidelines for the management of acute myocardial infarction in patients presenting with ST-segment elevation. Eur Heart J. 2012 Oct;33(20):2569-619. doi: 10.1093/eurheartj/ehs215. Epub 2012 Aug 24. No abstract available.
PubMed 22922416O'Gara PT, Kushner FG, Ascheim DD, Casey DE Jr, Chung MK, de Lemos JA, Ettinger SM, Fang JC, Fesmire FM, Franklin BA, Granger CB, Krumholz HM, Linderbaum JA, Morrow DA, Newby LK, Ornato JP, Ou N, Radford MJ, Tamis-Holland JE, Tommaso JE, Tracy CM, Woo YJ, Zhao DX; CF/AHA Task Force. 2013 ACCF/AHA guideline for the management of ST-elevation myocardial infarction: executive summary: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. Circulation. 2013 Jan 29;127(4):529-55. doi: 10.1161/CIR.0b013e3182742c84. Epub 2012 Dec 17. No abstract available.
PubMed 23247303Aradi D, Collet JP, Mair J, Plebani M, Merkely B, Jaffe AS, Mockel M, Giannitsis E, Thygesen K, ten Berg JM, Mueller C, Storey RF, Lindahl B, Huber K; Study Group on Biomarkers in Cardiology of the Acute Cardiovascular Care Association of the European Society of Cardiology; Working Group on Thrombosis of the European Society of Cardiology. Platelet function testing in acute cardiac care - is there a role for prediction or prevention of stent thrombosis and bleeding? Thromb Haemost. 2015 Feb;113(2):221-30. doi: 10.1160/TH14-05-0449. Epub 2014 Nov 20.
PubMed 25413597Montalescot G, van 't Hof AW, Lapostolle F, Silvain J, Lassen JF, Bolognese L, Cantor WJ, Cequier A, Chettibi M, Goodman SG, Hammett CJ, Huber K, Janzon M, Merkely B, Storey RF, Zeymer U, Stibbe O, Ecollan P, Heutz WM, Swahn E, Collet JP, Willems FF, Baradat C, Licour M, Tsatsaris A, Vicaut E, Hamm CW; ATLANTIC Investigators. Prehospital ticagrelor in ST-segment elevation myocardial infarction. N Engl J Med. 2014 Sep 11;371(11):1016-27. doi: 10.1056/NEJMoa1407024. Epub 2014 Sep 1.
PubMed 25175921Montalescot G, Bolognese L, Dudek D, Goldstein P, Hamm C, Tanguay JF, ten Berg JM, Miller DL, Costigan TM, Goedicke J, Silvain J, Angioli P, Legutko J, Niethammer M, Motovska Z, Jakubowski JA, Cayla G, Visconti LO, Vicaut E, Widimsky P; ACCOAST Investigators. Pretreatment with prasugrel in non-ST-segment elevation acute coronary syndromes. N Engl J Med. 2013 Sep 12;369(11):999-1010. doi: 10.1056/NEJMoa1308075. Epub 2013 Sep 1.
PubMed 23991622Hansson EC, Dellborg M, Lepore V, Jeppsson A. Prevalence, indications and appropriateness of antiplatelet therapy in patients operated for acute aortic dissection: associations with bleeding complications and mortality. Heart. 2013 Jan;99(2):116-21. doi: 10.1136/heartjnl-2012-302717. Epub 2012 Oct 9.
PubMed 23048167Becker S, Chisholm G, Maeng M. Positive predictive value of clinically suspected ST-segment elevation myocardial infarction using angiographic verification. Am J Cardiol. 2013 Oct 1;112(7):923-7. doi: 10.1016/j.amjcard.2013.05.026. Epub 2013 Jun 14.
PubMed 23768460Angiolillo DJ, Firstenberg MS, Price MJ, Tummala PE, Hutyra M, Welsby IJ, Voeltz MD, Chandna H, Ramaiah C, Brtko M, Cannon L, Dyke C, Liu T, Montalescot G, Manoukian SV, Prats J, Topol EJ; BRIDGE Investigators. Bridging antiplatelet therapy with cangrelor in patients undergoing cardiac surgery: a randomized controlled trial. JAMA. 2012 Jan 18;307(3):265-74. doi: 10.1001/jama.2011.2002.
PubMed 22253393Gurbel PA, Bliden KP, Butler K, Tantry US, Gesheff T, Wei C, Teng R, Antonino MJ, Patil SB, Karunakaran A, Kereiakes DJ, Parris C, Purdy D, Wilson V, Ledley GS, Storey RF. 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. Circulation. 2009 Dec 22;120(25):2577-85. doi: 10.1161/CIRCULATIONAHA.109.912550. Epub 2009 Nov 18.
PubMed 19923168Bhatt DL, Lincoff AM, Gibson CM, Stone GW, McNulty S, Montalescot G, Kleiman NS, Goodman SG, White HD, Mahaffey KW, Pollack CV Jr, Manoukian SV, Widimsky P, Chew DP, Cura F, Manukov I, Tousek F, Jafar MZ, Arneja J, Skerjanec S, Harrington RA; CHAMPION PLATFORM Investigators. Intravenous platelet blockade with cangrelor during PCI. N Engl J Med. 2009 Dec 10;361(24):2330-41. doi: 10.1056/NEJMoa0908629.
PubMed 19915222Harrington RA, Stone GW, McNulty S, White HD, Lincoff AM, Gibson CM, Pollack CV Jr, Montalescot G, Mahaffey KW, Kleiman NS, Goodman SG, Amine M, Angiolillo DJ, Becker RC, Chew DP, French WJ, Leisch F, Parikh KH, Skerjanec S, Bhatt DL. Platelet inhibition with cangrelor in patients undergoing PCI. N Engl J Med. 2009 Dec 10;361(24):2318-29. doi: 10.1056/NEJMoa0908628.
PubMed 19915221Bhatt DL, Stone GW, Mahaffey KW, Gibson CM, Steg PG, Hamm CW, Price MJ, Leonardi S, Gallup D, Bramucci E, Radke PW, Widimsky P, Tousek F, Tauth J, Spriggs D, McLaurin BT, Angiolillo DJ, Genereux P, Liu T, Prats J, Todd M, Skerjanec S, White HD, Harrington RA; CHAMPION PHOENIX Investigators. Effect of platelet inhibition with cangrelor during PCI on ischemic events. N Engl J Med. 2013 Apr 4;368(14):1303-13. doi: 10.1056/NEJMoa1300815. Epub 2013 Mar 10.
PubMed 23473369Parodi G, Xanthopoulou I, Bellandi B, Gkizas V, Valenti R, Karanikas S, Migliorini A, Angelidis C, Abbate R, Patsilinakos S, Baldereschi GJ, Marcucci R, Gensini GF, Antoniucci D, Alexopoulos D. Ticagrelor crushed tablets administration in STEMI patients: the MOJITO study. J Am Coll Cardiol. 2015 Feb 10;65(5):511-2. doi: 10.1016/j.jacc.2014.08.056. No abstract available.
PubMed 25660931Parodi G, Valenti R, Bellandi B, Migliorini A, Marcucci R, Comito V, Carrabba N, Santini A, Gensini GF, Abbate R, Antoniucci D. Comparison of prasugrel and ticagrelor loading doses in ST-segment elevation myocardial infarction patients: RAPID (Rapid Activity of Platelet Inhibitor Drugs) primary PCI study. J Am Coll Cardiol. 2013 Apr 16;61(15):1601-6. doi: 10.1016/j.jacc.2013.01.024. Epub 2013 Mar 22.
PubMed 23500251Alexopoulos D, Xanthopoulou I, Mavronasiou E, Stavrou K, Siapika A, Tsoni E, Davlouros P. Randomized assessment of ticagrelor versus prasugrel antiplatelet effects in patients with diabetes. Diabetes Care. 2013 Aug;36(8):2211-6. doi: 10.2337/dc12-2510. Epub 2013 Mar 14.
PubMed 23491524
Study at a glance
From the registry record, last updated by the sponsor on 28 Jun 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Cangrelor vs. Ticagrelor for Early Platelet Inhibition in ST-elevation Myocardial Infarction
- ClinicalTrials.gov ID
- NCT03182855
- Acronym / sponsor ID
- CanTi / 2016-003721-41
- Conditions
- Acute Coronary Syndrome, Myocardial Infarction, STEMI - ST Elevation Myocardial Infarction
- Keywords
- Acute Coronary Syndrome, STEMI, Platelet reactivity, Anti-thrombotic therapy
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 80 participants (estimated)
- Lead sponsor
- University of AarhusUniversity, hospital or other
- Study start
- 1 Sep 2018 (estimated)
- Primary completion
- 1 Jun 2019 (estimated)
- Study completion
- 1 Aug 2019 (estimated)
- First posted
- 9 Jun 2017 (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.
This randomized, controlled trial compares the anti-thrombotic effect of cangrelor and ticagrelor on platelet activity in patients with acute ST-elevation myocardial infarction.
Patients will receive either prehospital ticagrelor (180 mg - crushed) or in-hospital cangrelor (bolus 30 μg/kg within 1 minute followed by infusion (4 μg/kg/minute) for two hours) followed by 180 mg ticagrelor.
The primary study end-point is platelet reactivity at sheath insertion, at the end of the PCI procedure (before sheath removal) and two hours after PCI is initiated. The secondary end-point is the proportion of patients with inappropriate or harmful P2Y12 administration.
Detailed description
In patients with ST-elevation myocardial infarction (STEMI) early restoration of blood flow in the culprit coronary artery is essential to reduce infarct size and thereby mortality and morbidity. The recommended method for achieving reperfusion is primary percutaneous coronary intervention (PPCI) (1,2). Early initiation of adjunctive antithrombotic therapy is important to prevent further thrombus formation and to facilitate PPCI.
International guidelines currently recommend immediate oral or intravenous administration of aspirin and intravenous administration of heparin in patients with suspected STEMI (1,2).
A second platelet inhibitor (of the P2Y12 family) is often added already in the ambulance. This enhances the antiplatelet effect, but also increases bleeding risk.
A recently introduced antithrombotic agent, that can be administered intravenously, can potentially achieve the same antithrombotic effect at the same time of the oral agent, with the added benefit, that administration can await coronary angiography. This would reduce the risk of administrating powerful antithrombotic medicine to patients with diagnosis other than STEMI.
In the ATLANTIC trial (3) prehospital administration was compared to in-hospital (catheterization laboratory) administration of ticagrelor. The trial indicated that ticagrelor could safely be administered in the ambulance, although there was no apparent effect on Thrombolysis in Myocardial Infarction (TIMI) flow in the culprit coronary artery and no effect on ST-segment resolution in the ECG. However, the median time difference between ticagrelor administration in the two groups was only 31 minutes. This might not leave enough time for adequate platelet inhibition in the prehospital group.
In patients with NSTEMI (Non-ST-elevation myocardial infarction), pretreatment with prasugrel has been shown to be associated with increased bleeding risk and confers no benefit on ischemic outcomes (4). Thus, there are indications that the addition of oral P2Y12 inhibitor can await the coronary angiography, thereby minimizing the risk of excessive platelet inhibition in patients with a high bleeding risk or a potentially lethal differential diagnosis such as aortic dissection (5). Previous studies document that approximately 15% of patients with suspected STEMI have a final diagnosis other than an acute coronary syndrome (6). There is a fine balance between the benefit and possible deleterious effects of early, aggressive oral platelet inhibition in patients with suspected STEMI.
Recently a novel, intravenous P2Y12 inhibitor - cangrelor - has been released. Cangrelor enables immediate inhibition of the platelet P2Y12 inhibitor. The drug has a short half-life, is reversible and is only effective during administration (7). This contrasts with the available oral P2Y12 inhibitors, which all induce inhibition of the platelets for several days. Although ticagrelor is reversible, the platelet inhibition induced by this widely used, potent drug lasts for at least 3 days (8). The effects of cangrelor on platelet inhibition and clinical outcome have been documented in three, large clinical randomized trials (9-11).
Currently it is unknown whether platelet inhibition achieved by cangrelor administered in the catheterization laboratory is more effective compared to ticagrelor administered in the ambulance in patients with suspected STEMI.
The objective of this trial is to compare the effect of oral ticagrelor vs. intravenous cangrelor on platelet inhibition in ST-elevation myocardial infarction.
Patients will be included in the ambulance and randomized to one of two treatment groups; either to receive oral ticagrelor or intravenous cangrelor.
The study randomization will not be blinded to either investigator or patient (Open label, randomized, controlled clinical trial).
The hypothesis is that platelet inhibition with cangrelor administered intravenously in the catheterization laboratory after coronary angiography, but before PPCI is as effective as platelet inhibition achieved by ticagrelor administered orally in the ambulance in patients with suspected STEMI.
It is also assumed that administration of a P2Y12 inhibitor after coronary angiography reduces the proportion of inappropriate administration due to a final diagnosis other than STEMI.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
- Model description
- Randomized trial. No blinding
| Arm | Type | Receives |
|---|---|---|
| Prehospital ticagrelor | Active comparator | Drug: TicagrelorTicagrelor 180 mg orally administered in the ambulance as soon as possible after inclusion and before coronary angiography. The two pills are chewed and swallowed with a glass of water. In both groups heparin and bivalirudin will be administered as part of routine therapy. In hemodynamically compromised patients with a high thrombus load a glycoprotein IIb/IIIa inhibitor may be used as bail-out therapy (these patients will be excluded). These drugs are not deemed to be study medication. |
| Inhospital cangrelor tetrasodium | Active comparator | Drug: Ticagrelor, Drug: Cangrelor TetrasodiumTicagrelor 180 mg orally in combination with cangrelor intravenously (bolus 30 μg/kg within 1 minute followed by infusion (4 μg/kg/minute) for two hours) both administered immediately after coronary angiography, when PPCI is indicated. In both groups heparin and bivalirudin will be administered as part of routine therapy. In hemodynamically compromised patients with a high thrombus load a glycoprotein IIb/IIIa inhibitor may be used as bail-out therapy (these patients will be excluded). These drugs are not deemed to be study medication. |
Who may qualify
- Ages
- 18 to 90 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- Patients triaged for PPCI due to suspicion of STEMI.
- Symptom duration < 12 hours
Key exclusion criteria (8 listed)
- Previous inclusion in the study
- Already in treatment with ticagrelor, prasugrel or clopidogrel
- Treatment with oral anticoagulants (warfarin, coumarins, rivaroxaban, apixaban, dabigatran)
- Adjunctive use of glycoprotein IIb/IIIa inhibitor during PCI
- Active bleeding
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 |
|---|---|---|
| TicagrelorAlso: Brilique, BrilintaADP-receptor blocker. Oral formulation. Standard Therapy in Acute Myocardial Infarction. Administered in the ambulance in arm 1 and in the hospital (catheterization laboratory) in arm 2. | Drug | Inhospital cangrelor tetrasodium, Prehospital ticagrelor |
| Cangrelor TetrasodiumAlso: Kengrexal, KengrealIntravenous ADP-receptor blocker. Administered after hospital arrival in the catheterization laboratory. | Drug | Inhospital cangrelor tetrasodium |
Primary outcome
Platelet reactivity 10 minutes PCI after is initiated
Time frame: 10 minutes
Platelet reactivity measured in platelet reactivity units (PRU) by the VerifyNow® assay 10 minutes after PCI is initiated.
2 secondary outcomes
Platelet reactivity before and after PCI
Time frame: 2 hours
Proportion of patients with inappropriate or harmful P2Y12 administration
Time frame: 4 hours
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Jun 2018.
- Background: PubMed 22922416Task Force on the management of ST-segment elevation acute myocardial infarction of the European Society of Cardiology (ESC); Steg PG, James SK, Atar D, Badano LP, Blomstrom-Lundqvist C, Borger MA, Di Mario C, Dickstein K, Ducrocq G, Fernandez-Aviles F, Gershlick AH, Giannuzzi P, Halvorsen S, Huber K, Juni P, Kastrati A, Knuuti J, Lenzen MJ, Mahaffey KW, Valgimigli M, van 't Hof A, Widimsky P, Zahger D. ESC Guidelines for the management of acute myocardial infarction in patients presenting with ST-segment elevation. Eur Heart J. 2012 Oct;33(20):2569-619. doi: 10.1093/eurheartj/ehs215. Epub 2012 Aug 24. No abstract available.
- Background: PubMed 23247303O'Gara PT, Kushner FG, Ascheim DD, Casey DE Jr, Chung MK, de Lemos JA, Ettinger SM, Fang JC, Fesmire FM, Franklin BA, Granger CB, Krumholz HM, Linderbaum JA, Morrow DA, Newby LK, Ornato JP, Ou N, Radford MJ, Tamis-Holland JE, Tommaso JE, Tracy CM, Woo YJ, Zhao DX; CF/AHA Task Force. 2013 ACCF/AHA guideline for the management of ST-elevation myocardial infarction: executive summary: a report of the American College of Cardiology Foundation/American Heart Association Task Force on Practice Guidelines. Circulation. 2013 Jan 29;127(4):529-55. doi: 10.1161/CIR.0b013e3182742c84. Epub 2012 Dec 17. No abstract available.
- Background: PubMed 25413597Aradi D, Collet JP, Mair J, Plebani M, Merkely B, Jaffe AS, Mockel M, Giannitsis E, Thygesen K, ten Berg JM, Mueller C, Storey RF, Lindahl B, Huber K; Study Group on Biomarkers in Cardiology of the Acute Cardiovascular Care Association of the European Society of Cardiology; Working Group on Thrombosis of the European Society of Cardiology. Platelet function testing in acute cardiac care - is there a role for prediction or prevention of stent thrombosis and bleeding? Thromb Haemost. 2015 Feb;113(2):221-30. doi: 10.1160/TH14-05-0449. Epub 2014 Nov 20.
- Results publication: PubMed 25175921Montalescot G, van 't Hof AW, Lapostolle F, Silvain J, Lassen JF, Bolognese L, Cantor WJ, Cequier A, Chettibi M, Goodman SG, Hammett CJ, Huber K, Janzon M, Merkely B, Storey RF, Zeymer U, Stibbe O, Ecollan P, Heutz WM, Swahn E, Collet JP, Willems FF, Baradat C, Licour M, Tsatsaris A, Vicaut E, Hamm CW; ATLANTIC Investigators. Prehospital ticagrelor in ST-segment elevation myocardial infarction. N Engl J Med. 2014 Sep 11;371(11):1016-27. doi: 10.1056/NEJMoa1407024. Epub 2014 Sep 1.
- Results publication: PubMed 23991622Montalescot G, Bolognese L, Dudek D, Goldstein P, Hamm C, Tanguay JF, ten Berg JM, Miller DL, Costigan TM, Goedicke J, Silvain J, Angioli P, Legutko J, Niethammer M, Motovska Z, Jakubowski JA, Cayla G, Visconti LO, Vicaut E, Widimsky P; ACCOAST Investigators. Pretreatment with prasugrel in non-ST-segment elevation acute coronary syndromes. N Engl J Med. 2013 Sep 12;369(11):999-1010. doi: 10.1056/NEJMoa1308075. Epub 2013 Sep 1.
- Results publication: PubMed 23048167Hansson EC, Dellborg M, Lepore V, Jeppsson A. Prevalence, indications and appropriateness of antiplatelet therapy in patients operated for acute aortic dissection: associations with bleeding complications and mortality. Heart. 2013 Jan;99(2):116-21. doi: 10.1136/heartjnl-2012-302717. Epub 2012 Oct 9.
- Results publication: PubMed 23768460Becker S, Chisholm G, Maeng M. Positive predictive value of clinically suspected ST-segment elevation myocardial infarction using angiographic verification. Am J Cardiol. 2013 Oct 1;112(7):923-7. doi: 10.1016/j.amjcard.2013.05.026. Epub 2013 Jun 14.
- Results publication: PubMed 22253393Angiolillo DJ, Firstenberg MS, Price MJ, Tummala PE, Hutyra M, Welsby IJ, Voeltz MD, Chandna H, Ramaiah C, Brtko M, Cannon L, Dyke C, Liu T, Montalescot G, Manoukian SV, Prats J, Topol EJ; BRIDGE Investigators. Bridging antiplatelet therapy with cangrelor in patients undergoing cardiac surgery: a randomized controlled trial. JAMA. 2012 Jan 18;307(3):265-74. doi: 10.1001/jama.2011.2002.
- Results publication: PubMed 19923168Gurbel PA, Bliden KP, Butler K, Tantry US, Gesheff T, Wei C, Teng R, Antonino MJ, Patil SB, Karunakaran A, Kereiakes DJ, Parris C, Purdy D, Wilson V, Ledley GS, Storey RF. 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. Circulation. 2009 Dec 22;120(25):2577-85. doi: 10.1161/CIRCULATIONAHA.109.912550. Epub 2009 Nov 18.
- Results publication: PubMed 19915222Bhatt DL, Lincoff AM, Gibson CM, Stone GW, McNulty S, Montalescot G, Kleiman NS, Goodman SG, White HD, Mahaffey KW, Pollack CV Jr, Manoukian SV, Widimsky P, Chew DP, Cura F, Manukov I, Tousek F, Jafar MZ, Arneja J, Skerjanec S, Harrington RA; CHAMPION PLATFORM Investigators. Intravenous platelet blockade with cangrelor during PCI. N Engl J Med. 2009 Dec 10;361(24):2330-41. doi: 10.1056/NEJMoa0908629.
- Results publication: PubMed 19915221Harrington RA, Stone GW, McNulty S, White HD, Lincoff AM, Gibson CM, Pollack CV Jr, Montalescot G, Mahaffey KW, Kleiman NS, Goodman SG, Amine M, Angiolillo DJ, Becker RC, Chew DP, French WJ, Leisch F, Parikh KH, Skerjanec S, Bhatt DL. Platelet inhibition with cangrelor in patients undergoing PCI. N Engl J Med. 2009 Dec 10;361(24):2318-29. doi: 10.1056/NEJMoa0908628.
- Results publication: PubMed 23473369Bhatt DL, Stone GW, Mahaffey KW, Gibson CM, Steg PG, Hamm CW, Price MJ, Leonardi S, Gallup D, Bramucci E, Radke PW, Widimsky P, Tousek F, Tauth J, Spriggs D, McLaurin BT, Angiolillo DJ, Genereux P, Liu T, Prats J, Todd M, Skerjanec S, White HD, Harrington RA; CHAMPION PHOENIX Investigators. Effect of platelet inhibition with cangrelor during PCI on ischemic events. N Engl J Med. 2013 Apr 4;368(14):1303-13. doi: 10.1056/NEJMoa1300815. Epub 2013 Mar 10.
- 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.
Jacob T Sorensen, MD, PhD principal investigator
Aarhus University Hospital, Department of Cardiology, Skejby
Steen D Kristensen, MD, DMSc study director
Aarhus University Hospital, Department of Cardiology, Skejby
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 and Cangrelor Tetrasodium in people with Acute Coronary Syndrome and Myocardial Infarction, run by University of Aarhus at 1 site in Denmark.
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 2 inclusion and 8 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: status not confirmed, as of the sponsor's last update on 28 Jun 2018. 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 Denmark. 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?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
Contact Jacob T Sorensen, MD, PhD (+4540143563, jacsoe@rm.dk), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Platelet reactivity 10 minutes PCI after is initiated (time frame: 10 minutes). 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 NCT03182855, which also lists 15 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 28 Jun 2018.