AtherothrombosisPhase 4ASTERIASNCT02616497
ASpirin vs Triflusal for Event Reduction In Atherothrombosis Secondary Prevention (ASTERIAS)
A Phase 4 study testing Aspirin and Triflusal in people with Atherothrombosis, run by University of Ioannina at 1 site in Greece.
Trial summary
Investigation of the efficacy and safety of triflusal in comparison with aspirin in patients with stable coronary artery disease (CAD) and in those with a history of an acute non-cardioembolic ischemic stroke. Read more about this study
- Who is it for?
- Ages 18 years and older
- Conditions the study is for
- Atherothrombosis
- What is being tested?
- Aspirin and Triflusal
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 1,220 participants
- Where
- 1 siteGreece
- Study dates
- Sep 2015to 28 Mar 2018
- 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
- Patients with a stable coronary artery disease (CAD)
- Patients with a history of non-cardioembolic ischemic stroke.
Who cannot join
- Hypersensitivity reaction or contraindication to triflusal or aspirin
- Active bleeding or history of severe bleeding (peptic ulcer, trauma or intracranial hemorrhage)
- Blood coagulation disorders
- Uncontrolled severe hypertension
- Pregnancy or breastfeeding
- Liver disease (alanine or aspartate aminotransferase more than 3 times the upper normal limit)
Show all 10Show fewer
- Malignancy that may potentially increase the risk of hemorrhage
- Drug or alcohol abuse
- HIV infection
- Chronic disorders requiring long-term treatment with systemic nonsteroidal anti-inflammatory drugs (NSAIDs).
Trial locations and contacts
1 site in 1 country.
Greece1 site
Atherothrombosis Research Centre / Laboratory of Biochemistry, University of Ioannina
Ioannina, 45110
About this study
Official title: Comparison of Triflusal With Aspirin in the Secondary Prevention of Atherothrombotic Events
Investigation of the efficacy and safety of triflusal in comparison with aspirin in patients with stable coronary artery disease (CAD) and in those with a history of an acute non-cardioembolic ischemic stroke.
Read the detailed description
Triflusal, 2-(acetyloxy)-4-(trifluoromethyl) benzoic acid, is an antiplatelet agent with a chemical structure similar to aspirin, but with a different pharmacokinetic and pharmacodynamic profile. The drug is administered orally and its bioavailability ranges from 83% to 100%. It binds almost entirely (99%) to plasma proteins and crosses readily organic barriers. Triflusal is deacetylated in the liver, forming its main metabolite 2-hydroxy-4-trifluoromethyl benzoic acid (HTB). In contrast to the inactive aspirin metabolite salicylic acid, HTB exhibits antiplatelet activity and has a long plasma half-life of approximately 40h. Triflusal irreversibly inhibits COX-1 and reduces TxA2 production, but to a lesser extent compared with aspirin. It inhibits COX-1 and AA metabolism selectively in platelets, preserving PGI2 synthesis in vascular endothelial cells 1. Except of platelet COX-1 triflusal and in particular HTB inhibit phosphodiesterase, the enzyme that degrades the cyclic nucleotides, cyclic adenosine monophosphate (c-AMP) and cyclic guanosine monophosphate (c-GMP), both of which inhibit platelet function.
Triflusal has similar to aspirin efficacy for the secondary prevention of vascular events in patients with acute myocardial infarction (MI) and stroke, while it reduces the incidence of intracranial and gastrointestinal haemorrhage compared with aspirin. It should be noted that triflusal is well tolerated in patients with aspirin-induced asthma.
Aspirin (acetyl salicylic acid) remains for over 50 years the cornerstone of antiplatelet therapy due to its proven clinical benefit and very good cost effectiveness profile. Aspirin selectively and irreversibly acetylates the hydroxyl group of a single serine residue at position 529 within the polypeptide chain of PGH synthase-1. Thus aspirin inhibits the COX-1 activity but it does not affect the hydroperoxidase activity PGH synthase-1. By blocking COX-1, the production of TXA2 is reduced, leading to reduced platelet aggregation. Aspirin improves clinical outcome in all cardiovascular syndromes in primary and secondary prevention, including acute events. In high-risk patients, aspirin substantially reduces the risk of vascular death by ~15% and non-fatal vascular events by ~30% as it reported by a meta-analysis of over 100 large-scale randomized trials. Several studies the last years have suggested that a proportion of patients (5 to 65%) exhibit a hyporesponsiveness (resistance) to aspirin treatment which could be associated with recurrent ischemic events. Aspirin resistance may result from several causes, such as low compliance, interference with non-steroid anti-inflammatory drugs (NSAIDS) and protein glycation occurring in type 2 diabetes mellitus. Increased platelet turnover observed in various diseases such as ACS, peripheral arterial disease and diabetic angiopathy associated with faster re-appearance of newly formed, non aspirinated platelets, may also account for aspirin resistance.
Although triflusal is chemically related to aspirin and has similar effectiveness, it appears to have a better tolerability profile than aspirin. Results from large-scale clinical trials and a meta-analysis suggest that its use may be preferable to that of aspirin, in several clinical settings where antiplatelet therapy is indicated. Furthermore, in selected populations, such as in geriatric patients, because of an increased risk of bleeding complications, in patients suffering from asthma, chronic sinusitis and nasal polyps, or in cases of aspirin resistance, triflusal may be a choice worth considering. Furthermore, when combination antiplatelet-fibrinolytic or antiplatelet-anticoagulant therapy is needed, clinical data support triflusal use based on its efficacy and better safety than aspirin. Unlike aspirin, triflusal, also, less likely affect the efficacy of antihypertensive drugs, especially angiotensin converting enzyme inhibitors. The aim of the present trial is to investigate the efficacy and safety of triflusal in comparison with aspirin in patients with stable coronary artery disease (CAD) and in those with a history of an acute non-cardioembolic ischemic stroke.
- Conditions
- Atherothrombosis
- Being tested
- Aspirin, Triflusal
- Keywords
- aspirin, triflusal, antiplatelet drugs, atherothrombosis, secondary prevention, bleeding
- Medical subject headings
- Thrombosis, Hemorrhage
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
AspirinDrug
Also called Salospir
COX-1 inhibitor
TriflusalDrug
Also called Aflen
COX-1 inhibitor
| Study group | Role | What they receive |
|---|---|---|
| Aspirin | Active comparator | 100mg/day Receives: Drug: Aspirin |
| Triflusal | Active comparator | 300mg twice or 600mg once daily Receives: Drug: Triflusal |
What is being measured
The primary outcome is the main question the study is designed to answer.
Composite of death from vascular causes, myocardial infarction (MI), or stroke (ischaemic or haemorrhagic) during the twelve month treatment period
Number of participants who suffer from the primary efficacy end point which is the composite of death from vascular causes, myocardial infarction(MI), or stroke during the twelve month treatment period
Measured: 12 months
Rate of bleeding events as defined by Bleeding Academic Research Consortium (BARC) criteria during the twelve month treatment period
Number of participants who suffer from the rate of bleeding events as defined by Bleeding Academic Research Consortium (BARC) criteria during the twelve month treatment period
Measured: 12 months
Secondary outcomes (2)
Composite of death from any cause, MI, or stroke during the twelve month treatment period
Number of participants who suffer from the secondary efficacy end point which is the composite of death from any cause, MI, or stroke during the twelve month treatment period
Measured: 12 months
Hypersensitivity or intolerance to study drugs during the twelve month treatment period
Number of participants who suffer from the secondary safety end points which are hypersensitivity or intolerance to study drugs during the twelve month treatment period
Measured: 12 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted30 Nov 2015 (estimated)
- Study startSep 2015
- Primary completion28 Feb 2017
- Study completion28 Mar 2018
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (21)Papers the sponsor has linked to this study.
- Other trials for AtherothrombosisStudies 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
- Health services research
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Enrolment
- 1,220 participants (actual)
Sponsor and investigators
- Lead sponsor
- University of Ioannina
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Alexandros Tselepis, University of Ioannina
- Investigators
- Alexandros Tselepis, MD, Principal investigator, Atherothrombosis Research Centre
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02616497
- Sponsor's protocol ID
- Asp-Trifl-1
- Acronym
- ASTERIAS
- Status last verified
- Apr 2018
- First submitted
- 20 Nov 2015
- Last updated
- 17 Apr 2018
- Results posted
- No
- Data monitoring committee
- No
Publications
Di Minno G. Aspirin resistance and platelet turnover: a 25-year old issue. Nutr Metab Cardiovasc Dis. 2011 Aug;21(8):542-5. doi: 10.1016/j.numecd.2011.04.002. Epub 2011 Jul 13.
PubMed 21745731Feher G, Feher A, Pusch G, Lupkovics G, Szapary L, Papp E. The genetics of antiplatelet drug resistance. Clin Genet. 2009 Jan;75(1):1-18. doi: 10.1111/j.1399-0004.2008.01105.x. Epub 2008 Nov 29.
PubMed 19067731Anninos H, Andrikopoulos G, Pastromas S, Sakellariou D, Theodorakis G, Vardas P. Triflusal: an old drug in modern antiplatelet therapy. Review of its action, use, safety and effectiveness. Hellenic J Cardiol. 2009 May-Jun;50(3):199-207. No abstract available.
PubMed 19465361Valle M, Barbanoj MJ, Donner A, Izquierdo I, Herranz U, Klein N, Eichler HG, Muller M, Brunner M. Access of HTB, main metabolite of triflusal, to cerebrospinal fluid in healthy volunteers. Eur J Clin Pharmacol. 2005 Apr;61(2):103-11. doi: 10.1007/s00228-004-0887-0. Epub 2005 Feb 12.
PubMed 15711832Antonijoan RM, Gich I, Azaro A, Sainz S, Balanzo J, Izquierdo I, Borja J, Donado E, Blanch I, Barbanoj MJ. Gastrointestinal safety of triflusal solution in healthy volunteers: a proof of concept endoscopic study. Eur J Clin Pharmacol. 2011 Jul;67(7):663-9. doi: 10.1007/s00228-011-1004-9. Epub 2011 Feb 16.
PubMed 21327422Michelson AD. Antiplatelet therapies for the treatment of cardiovascular disease. Nat Rev Drug Discov. 2010 Feb;9(2):154-69. doi: 10.1038/nrd2957.
PubMed 20118963Antithrombotic Trialists' Collaboration. Collaborative meta-analysis of randomised trials of antiplatelet therapy for prevention of death, myocardial infarction, and stroke in high risk patients. BMJ. 2002 Jan 12;324(7329):71-86. doi: 10.1136/bmj.324.7329.71.
PubMed 11786451Krasopoulos G, Brister SJ, Beattie WS, Buchanan MR. Aspirin "resistance" and risk of cardiovascular morbidity: systematic review and meta-analysis. BMJ. 2008 Jan 26;336(7637):195-8. doi: 10.1136/bmj.39430.529549.BE. Epub 2008 Jan 17.
PubMed 18202034Snoep JD, Hovens MM, Eikenboom JC, van der Bom JG, Huisman MV. Association of laboratory-defined aspirin resistance with a higher risk of recurrent cardiovascular events: a systematic review and meta-analysis. Arch Intern Med. 2007 Aug 13-27;167(15):1593-9. doi: 10.1001/archinte.167.15.1593.
PubMed 17698681Undas A, Siudak Z, Topor-Madry R, Lesniak M, Tracz W. Simvastatin administration reduces thromboxane production in subjects taking aspirin: links between aspirin resistance and thrombin generation. Int J Cardiol. 2012 Jan 12;154(1):59-64. doi: 10.1016/j.ijcard.2010.09.093. Epub 2010 Oct 29.
PubMed 21035882Acikel S, Yildirir A, Aydinalp A, Demirtas K, Bal U, Kaynar G, Ozin B, Karakayali H, Muderrisoglu H, Haberal M. Incidence of aspirin resistance and its relationship with cardiovascular risk factors and graft function in renal transplant recipients. Transplant Proc. 2008 Dec;40(10):3485-8. doi: 10.1016/j.transproceed.2008.06.108.
PubMed 19100419Simon DI, Jozic J. Drug-eluting stents and antiplatelet resistance. Am J Cardiol. 2008 Nov 3;102(9 Suppl):29J-37J. doi: 10.1016/j.amjcard.2008.09.007.
PubMed 18928790Papathanasiou A, Goudevenos J, Tselepis AD. Resistance to aspirin and clopidogrel: possible mechanisms, laboratory investigation, and clinical significance. Hellenic J Cardiol. 2007 Nov-Dec;48(6):352-63. No abstract available.
PubMed 18196658Kalantzi KI, Tsoumani ME, Goudevenos IA, Tselepis AD. Pharmacodynamic properties of antiplatelet agents: current knowledge and future perspectives. Expert Rev Clin Pharmacol. 2012 May;5(3):319-36. doi: 10.1586/ecp.12.19.
PubMed 22697594Murdoch D, Plosker GL. Triflusal: a review of its use in cerebral infarction and myocardial infarction, and as thromboprophylaxis in atrial fibrillation. Drugs. 2006;66(5):671-92. doi: 10.2165/00003495-200666050-00009.
PubMed 16620146
Study at a glance
From the registry record, last updated by the sponsor on 17 Apr 2018. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparison of Triflusal With Aspirin in the Secondary Prevention of Atherothrombotic Events
- ClinicalTrials.gov ID
- NCT02616497
- Acronym / sponsor ID
- ASTERIAS / Asp-Trifl-1
- Conditions
- Atherothrombosis
- Keywords
- aspirin, triflusal, antiplatelet drugs, atherothrombosis, secondary prevention, bleeding
- Phase
- Phase 4
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 1,220 participants (actual)
- Lead sponsor
- University of IoanninaUniversity, hospital or other
- Study start
- Sep 2015
- Primary completion
- 28 Feb 2017 (actual)
- Study completion
- 28 Mar 2018 (actual)
- First posted
- 30 Nov 2015 (estimated)
- 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.
Investigation of the efficacy and safety of triflusal in comparison with aspirin in patients with stable coronary artery disease (CAD) and in those with a history of an acute non-cardioembolic ischemic stroke.
Detailed description
Triflusal, 2-(acetyloxy)-4-(trifluoromethyl) benzoic acid, is an antiplatelet agent with a chemical structure similar to aspirin, but with a different pharmacokinetic and pharmacodynamic profile. The drug is administered orally and its bioavailability ranges from 83% to 100%. It binds almost entirely (99%) to plasma proteins and crosses readily organic barriers. Triflusal is deacetylated in the liver, forming its main metabolite 2-hydroxy-4-trifluoromethyl benzoic acid (HTB). In contrast to the inactive aspirin metabolite salicylic acid, HTB exhibits antiplatelet activity and has a long plasma half-life of approximately 40h. Triflusal irreversibly inhibits COX-1 and reduces TxA2 production, but to a lesser extent compared with aspirin. It inhibits COX-1 and AA metabolism selectively in platelets, preserving PGI2 synthesis in vascular endothelial cells 1. Except of platelet COX-1 triflusal and in particular HTB inhibit phosphodiesterase, the enzyme that degrades the cyclic nucleotides, cyclic adenosine monophosphate (c-AMP) and cyclic guanosine monophosphate (c-GMP), both of which inhibit platelet function.
Triflusal has similar to aspirin efficacy for the secondary prevention of vascular events in patients with acute myocardial infarction (MI) and stroke, while it reduces the incidence of intracranial and gastrointestinal haemorrhage compared with aspirin. It should be noted that triflusal is well tolerated in patients with aspirin-induced asthma.
Aspirin (acetyl salicylic acid) remains for over 50 years the cornerstone of antiplatelet therapy due to its proven clinical benefit and very good cost effectiveness profile. Aspirin selectively and irreversibly acetylates the hydroxyl group of a single serine residue at position 529 within the polypeptide chain of PGH synthase-1. Thus aspirin inhibits the COX-1 activity but it does not affect the hydroperoxidase activity PGH synthase-1. By blocking COX-1, the production of TXA2 is reduced, leading to reduced platelet aggregation. Aspirin improves clinical outcome in all cardiovascular syndromes in primary and secondary prevention, including acute events. In high-risk patients, aspirin substantially reduces the risk of vascular death by ~15% and non-fatal vascular events by ~30% as it reported by a meta-analysis of over 100 large-scale randomized trials. Several studies the last years have suggested that a proportion of patients (5 to 65%) exhibit a hyporesponsiveness (resistance) to aspirin treatment which could be associated with recurrent ischemic events. Aspirin resistance may result from several causes, such as low compliance, interference with non-steroid anti-inflammatory drugs (NSAIDS) and protein glycation occurring in type 2 diabetes mellitus. Increased platelet turnover observed in various diseases such as ACS, peripheral arterial disease and diabetic angiopathy associated with faster re-appearance of newly formed, non aspirinated platelets, may also account for aspirin resistance.
Although triflusal is chemically related to aspirin and has similar effectiveness, it appears to have a better tolerability profile than aspirin. Results from large-scale clinical trials and a meta-analysis suggest that its use may be preferable to that of aspirin, in several clinical settings where antiplatelet therapy is indicated. Furthermore, in selected populations, such as in geriatric patients, because of an increased risk of bleeding complications, in patients suffering from asthma, chronic sinusitis and nasal polyps, or in cases of aspirin resistance, triflusal may be a choice worth considering. Furthermore, when combination antiplatelet-fibrinolytic or antiplatelet-anticoagulant therapy is needed, clinical data support triflusal use based on its efficacy and better safety than aspirin. Unlike aspirin, triflusal, also, less likely affect the efficacy of antihypertensive drugs, especially angiotensin converting enzyme inhibitors. The aim of the present trial is to investigate the efficacy and safety of triflusal in comparison with aspirin in patients with stable coronary artery disease (CAD) and in those with a history of an acute non-cardioembolic ischemic stroke.
Study design
- Primary purpose
- Health services research
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Aspirin | Active comparator | Drug: Aspirin100mg/day |
| Triflusal | Active comparator | Drug: Triflusal300mg twice or 600mg once daily |
Who may qualify
- Ages
- 18 years and older
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (2 listed)
- Patients with a stable coronary artery disease (CAD)
- Patients with a history of non-cardioembolic ischemic stroke.
Key exclusion criteria (10 listed)
- Hypersensitivity reaction or contraindication to triflusal or aspirin
- Active bleeding or history of severe bleeding (peptic ulcer, trauma or intracranial hemorrhage)
- Blood coagulation disorders
- Uncontrolled severe hypertension
- Pregnancy or breastfeeding
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 |
|---|---|---|
| AspirinAlso: SalospirCOX-1 inhibitor | Drug | Aspirin |
| TriflusalAlso: AflenCOX-1 inhibitor | Drug | Triflusal |
Primary outcome
Composite of death from vascular causes, myocardial infarction (MI), or stroke (ischaemic or haemorrhagic) during the twelve month treatment period
Time frame: 12 months
Number of participants who suffer from the primary efficacy end point which is the composite of death from vascular causes, myocardial infarction(MI), or stroke during the twelve month treatment period
Rate of bleeding events as defined by Bleeding Academic Research Consortium (BARC) criteria during the twelve month treatment period
Time frame: 12 months
Number of participants who suffer from the rate of bleeding events as defined by Bleeding Academic Research Consortium (BARC) criteria during the twelve month treatment period
2 secondary outcomes
Composite of death from any cause, MI, or stroke during the twelve month treatment period
Time frame: 12 months
Hypersensitivity or intolerance to study drugs during the twelve month treatment period
Time frame: 12 months
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 17 Apr 2018.
- Background: PubMed 21745731Di Minno G. Aspirin resistance and platelet turnover: a 25-year old issue. Nutr Metab Cardiovasc Dis. 2011 Aug;21(8):542-5. doi: 10.1016/j.numecd.2011.04.002. Epub 2011 Jul 13.
- Background: PubMed 19067731Feher G, Feher A, Pusch G, Lupkovics G, Szapary L, Papp E. The genetics of antiplatelet drug resistance. Clin Genet. 2009 Jan;75(1):1-18. doi: 10.1111/j.1399-0004.2008.01105.x. Epub 2008 Nov 29.
- Background: PubMed 19465361Anninos H, Andrikopoulos G, Pastromas S, Sakellariou D, Theodorakis G, Vardas P. Triflusal: an old drug in modern antiplatelet therapy. Review of its action, use, safety and effectiveness. Hellenic J Cardiol. 2009 May-Jun;50(3):199-207. No abstract available.
- Background: PubMed 15711832Valle M, Barbanoj MJ, Donner A, Izquierdo I, Herranz U, Klein N, Eichler HG, Muller M, Brunner M. Access of HTB, main metabolite of triflusal, to cerebrospinal fluid in healthy volunteers. Eur J Clin Pharmacol. 2005 Apr;61(2):103-11. doi: 10.1007/s00228-004-0887-0. Epub 2005 Feb 12.
- Background: PubMed 21327422Antonijoan RM, Gich I, Azaro A, Sainz S, Balanzo J, Izquierdo I, Borja J, Donado E, Blanch I, Barbanoj MJ. Gastrointestinal safety of triflusal solution in healthy volunteers: a proof of concept endoscopic study. Eur J Clin Pharmacol. 2011 Jul;67(7):663-9. doi: 10.1007/s00228-011-1004-9. Epub 2011 Feb 16.
- Background: PubMed 20118963Michelson AD. Antiplatelet therapies for the treatment of cardiovascular disease. Nat Rev Drug Discov. 2010 Feb;9(2):154-69. doi: 10.1038/nrd2957.
- Background: PubMed 11786451Antithrombotic Trialists' Collaboration. Collaborative meta-analysis of randomised trials of antiplatelet therapy for prevention of death, myocardial infarction, and stroke in high risk patients. BMJ. 2002 Jan 12;324(7329):71-86. doi: 10.1136/bmj.324.7329.71.
- Background: PubMed 18202034Krasopoulos G, Brister SJ, Beattie WS, Buchanan MR. Aspirin "resistance" and risk of cardiovascular morbidity: systematic review and meta-analysis. BMJ. 2008 Jan 26;336(7637):195-8. doi: 10.1136/bmj.39430.529549.BE. Epub 2008 Jan 17.
- Background: PubMed 17698681Snoep JD, Hovens MM, Eikenboom JC, van der Bom JG, Huisman MV. Association of laboratory-defined aspirin resistance with a higher risk of recurrent cardiovascular events: a systematic review and meta-analysis. Arch Intern Med. 2007 Aug 13-27;167(15):1593-9. doi: 10.1001/archinte.167.15.1593.
- Background: PubMed 21035882Undas A, Siudak Z, Topor-Madry R, Lesniak M, Tracz W. Simvastatin administration reduces thromboxane production in subjects taking aspirin: links between aspirin resistance and thrombin generation. Int J Cardiol. 2012 Jan 12;154(1):59-64. doi: 10.1016/j.ijcard.2010.09.093. Epub 2010 Oct 29.
- Background: PubMed 19100419Acikel S, Yildirir A, Aydinalp A, Demirtas K, Bal U, Kaynar G, Ozin B, Karakayali H, Muderrisoglu H, Haberal M. Incidence of aspirin resistance and its relationship with cardiovascular risk factors and graft function in renal transplant recipients. Transplant Proc. 2008 Dec;40(10):3485-8. doi: 10.1016/j.transproceed.2008.06.108.
- Background: PubMed 18928790Simon DI, Jozic J. Drug-eluting stents and antiplatelet resistance. Am J Cardiol. 2008 Nov 3;102(9 Suppl):29J-37J. doi: 10.1016/j.amjcard.2008.09.007.
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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.
Alexandros Tselepis, MD principal investigator
Atherothrombosis Research Centre
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 Aspirin and Triflusal in people with Atherothrombosis, run by University of Ioannina at 1 site in Greece.
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 10 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 17 Apr 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 Greece. 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?
Composite of death from vascular causes, myocardial infarction (MI), or stroke (ischaemic or haemorrhagic) during the twelve month treatment period (time frame: 12 months). The study lists 2 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 NCT02616497, which also lists 21 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 17 Apr 2018.