The Efficacy of Ticagrelor on Abdominal Aortic Aneurysm (AAA) Expansion
- Registration Number
- NCT02070653
- Lead Sponsor
- Uppsala University
- Brief Summary
Abdominal aortic aneurysm (AAA) is a major health problem and ruptured AAA is a common cause of death in Europe and North America. A key limitation of contemporary treatment strategies of AAA is the lack of therapy directed at reducing expansion. Although surgical repair is an effective treatment for large AAA, it is associated with significant mortality and morbidity as well as substantial cost. The rationale for this randomized controlled study is to investigate whether treatment with Ticagrelor inhibits growth of small abdominal aortic aneurysms.
- Detailed Description
Not available
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 145
- Provision of written informed consent
- Male and female patients
- Age 50-85 years
- Documented infrarenal aortic aneurysm between 35-49 mm
- Acetylsalicylic acid (ASA)-naïve
- Short expected survival.
- On anti-platelet therapy.
- On long-term oral or parenteral anticoagulant treatment.
- On strong inhibitors of CYP3A enzyme (Ketoconazole, Itraconazole, Voriconazole, Telithromycin, Clarithromycin, Ritonavir, Saquinavir, Nelfinavir, Indinavir, Atazanavir).
- On CYP3A (Cytochrome P450, family 3, subfamily A) substrates or inducers >40mg daily doses (Simvastatin, Lovastatin, Rifampin/rifampicin, Phenytoin, Carbamazepine, Phenobarbital).
- Known or suspected connective tissue disorder (Marfans syndrome, etc), infected or inflammatory aneurysm, aneurysm post aortic dissection or previous surgery of the infrarenal aorta.
- Increased risk for bradycardia or ongoing treatment with any bradycardia inducing drug.
- Contraindication for Ticagrelor; hypersensitivity to Ticagrelor or any of the excipients, active pathological bleeding, history of intracranial hemorrhage, moderate or severe hepatic impairment (eg, ascites and/or clinical signs of coagulopathy), on haemodialysis.
- Known haemostatic or coagulation disorder, gastrointestinal bleeding within the past 6 months, or increased bleeding risk due to surgery or trauma within 30 days.
- MRI exclusion criteria, such as: severe claustrophobia, pacemaker, metallic implants in brain, cochlear implants.
- Metallic implants in aortic region.
- Enrolled in either another investigational drug or medical device study or another investigational study of an approved drug or medical device within 30 days prior to visit 1 of the current study.
- Any condition or laboratory finding which in the opinion of the Investigator makes the patient unsuitable for inclusion (eg, active malignancy other than squamous cell or basal cell skin cancer, long-term concomitant treatment with non-steroidal anti-inflammatory drugs (NSAIDs).
Study & Design
- Study Type
- INTERVENTIONAL
- Study Design
- PARALLEL
- Arm && Interventions
Group Intervention Description Placebo Placebo Ticagrelor-placebo tablets twice daily for 12 months. Ticagrelor Ticagrelor Ticagrelor 90 mg tablets twice daily for 12 months.
- Primary Outcome Measures
Name Time Method AAA volume growth 12 months To determine mean reduction in AAA volume growth rate (%) measured with magnetic resonance imaging (MRI) at 12 months
- Secondary Outcome Measures
Name Time Method AAA diameter growth, need for surgery and rupture 12 months To determine mean reduction in diameter growth rate (mm), measured with MRI and ultra sound (US), mean reduction in thrombus volume enlargement rate (%) measured with MRI, need for surgery (≥55mm), aneurysm rupture, at 12 months
Trial Locations
- Locations (1)
Department of Surgical Sciences/Vascular Surgery, Uppsala University
🇸🇪Uppsala, Sweden