Clinical trial NCT06015477: Stent-Assisted Coiling Followed by Ticagrelor Monotherapy Instead of Dual Antiplatelet Therapy in Unruptured Intracranial Aneurysm
Official title: Stent-Assisted Coiling Followed by Ticagrelor Monotherapy Instead of Dual Antiplatelet Therapy in Endovascular Treatment of Unruptured Intracranial Aneurysm (SAC-TIDE) ---a Pilot Study
Study type: INTERVENTIONAL
Overall status: RECRUITING
Phase: NA
Conditions: Intracranial Aneurysm
Stent Complication
Keywords: Intracranial Aneurysm
Stent-Assisted Coiling
Ticagrelor
Dual Antiplatelet
Lead sponsor: The First Affiliated Hospital with Nanjing Medical University
Sponsor class: OTHER
First posted: 2023-08-29
Enrollment: 180
Sex: ALL
Minimum age (years): 18
Maximum age (years): 60
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: PARALLEL
Intervention model description: Patients meeting the enrollment criteria will be randomly assigned to one of the two treatment groups (1:1) and will be followed up for 1 year. All patients received oral clopidogrel 75 mg + aspirin 100 mg for 3-5 days preoperatively.
Primary purpose: TREATMENT

Brief summary: The primary goal of the trial is to investigate whether the experimental arms (receiving the P2Y12 inhibitor Ticagrelor) compared with the control arm (taking dual antiplatelet therapy) could reduce bleeding complications in patients with intracranial aneurysms undergoing Stent-Assisted Coiling.

Detailed description: Bleeding complications associated with the use of DAPT have been of great concern, with up to one-third of PCI patients treated with DAPT previously reported to suffer from nuisance bleeding. Once any of these bleeding complications occur, adherence to the DAPT regimen may become difficult. Antiplatelet agents are necessary for patients undergoing stent-assisted spring coil embolisation of intracranial aneurysms and are key to reducing thrombosis leading to ischaemic stroke events in post-procedural patients.

Currently neither long-term DAPT nor short-duration DAPT followed by aspirin monotherapy is fully satisfactory. Patients with aneurysms without underlying intracranial atherosclerotic disease have relatively lower ischaemic risk factors, and antiplatelet medication after stenting remains to be improved. Ticagrelor monotherapy was associated with a lower risk of major bleeding and no measurable increase in ischaemic events after a short course of 1- or 3-month DAPT. The study indicated no difference in stroke or death between mono- and dual-antiplatelet therapy after carotid artery placement, and P2Y12 inhibitor monotherapy may be an effective strategy to reduce severe bleeding complications while preserving ischemic benefits for patients. This study investigates the comparative efficacy and safety of stent-assisted coiling therapy for intracranial aneurysms after ticagrelor monotherapy as an alternative to dual antiplatelet therapy, to reduce the incidence of bleeding complications in patients, and thus to improve the antiplatelet strategy after stent-assisted coiling therapy for intracranial aneurysms.

Eligibility criteria: Inclusion Criteria:

1. Patients with a definitive diagnosis of an unruptured intracranial aneurysm with imaging suggestive of an aneurysm \<10 mm
2. Patients who successfully underwent stent-assisted spring coil treatment for intracranial aneurysms without acute ischaemic or bleeding stroke events in the perioperative period
3. Age 18-60 years old
4. Patients with no previous history of chronic diseases such as hypertension, diabetes mellitus, coronary heart disease, hyperlipidaemia and so on
5. Agreed to participate in this study and gave informed consent for the collection and preservation of case data and the follow-up process.

Exclusion Criteria:

1. Planned surgery or intervention during the experiment requiring study drug discontinuation; (2) Contraindications requiring oral anticoagulation or aspirin or clopidogrel; (3) History of severe central nervous system damage (e.g., as a result of tumour, aneurysm, intracranial or spinal cord surgery); (4) Severe liver disease, including hepatic failure, cirrhosis, portal hypertension (oesophageal varices), active hepatitis; (5 ) severe renal dysfunction (creatinine more than 1.5 times the upper limit of the normal range); (6) severe heart failure (NYHA class:III \~ IV); high risk for chronic arrhythmias (1st or 2nd degree atrioventricular block due to sinus node disease, bradycardic syncope without pacemaker); diagnosis or suspected diagnosis of acute coronary syndrome; bacterial endocarditis, pericarditis; (7) severe comorbidities or patients with active cancer with a life expectancy of less than 2 years; (8) participation in another clinical study using an experimental product within the past 30 days; currently receiving an experimental drug or device; and (9) pregnant, currently pregnant, or of childbearing potential without birth control or breastfeeding.

Primary outcomes:
measure: Hemorrhage
timeFrame: Within one year after surgery
measure: Composite endpoint of all-cause mortality, cerebrovascular accident or urgent target vessel revascularization.
timeFrame: Within one year after surgery
Secondary outcomes:
measure: ischemic stroke
timeFrame: This will be assessed during the first year of follow-up.
measure: Stent thrombosis
timeFrame: Within one year after surgery
measure: BARC 1-5 type bleeding
timeFrame: Within one year after surgery
Other outcomes:
Locations:
city: Nanjing
country: China
facility: Hua Lu
state: Jiangsu
Study officials:
affiliation: The First Affiliated Hospital with Nanjing Medical University
name: Hua Lu, Doctor
role: STUDY_CHAIR
References:
citation: Ben-Dor I, Torguson R, Scheinowitz M, Li Y, Delhaye C, Wakabayashi K, Maluenda G, Syed AI, Collins SD, Gonzalez MA, Gaglia MA Jr, Xue Z, Kaneshige K, Satler LF, Suddath WO, Kent KM, Pichard AD, Waksman R. Incidence, correlates, and clinical impact of nuisance bleeding after antiplatelet therapy for patients with drug-eluting stents. Am Heart J. 2010 May;159(5):871-5. doi: 10.1016/j.ahj.2010.01.016.
citation: Kim KS, Fraser JF, Grupke S, Cook AM. Management of antiplatelet therapy in patients undergoing neuroendovascular procedures. J Neurosurg. 2018 Oct;129(4):890-905. doi: 10.3171/2017.5.JNS162307. Epub 2017 Dec 1.
citation: Nordeen JD, Patel AV, Darracott RM, Johns GS, Taussky P, Tawk RG, Miller DA, Freeman WD, Hanel RA. Clopidogrel Resistance by P2Y12 Platelet Function Testing in Patients Undergoing Neuroendovascular Procedures: Incidence of Ischemic and Hemorrhagic Complications. J Vasc Interv Neurol. 2013 Jun;6(1):26-34.
citation: Gutierrez J, Turan TN, Hoh BL, Chimowitz MI. Intracranial atherosclerotic stenosis: risk factors, diagnosis, and treatment. Lancet Neurol. 2022 Apr;21(4):355-368. doi: 10.1016/S1474-4422(21)00376-8. Epub 2022 Feb 7.
citation: Valgimigli M, Mehran R, Franzone A, da Costa BR, Baber U, Piccolo R, McFadden EP, Vranckx P, Angiolillo DJ, Leonardi S, Cao D, Dangas GD, Mehta SR, Serruys PW, Gibson CM, Steg GP, Sharma SK, Hamm C, Shlofmitz R, Liebetrau C, Briguori C, Janssens L, Huber K, Ferrario M, Kunadian V, Cohen DJ, Zurakowski A, Oldroyd KG, Yaling H, Dudek D, Sartori S, Kirkham B, Escaned J, Heg D, Windecker S, Pocock S, Juni P; SIDNEY Collaboration. Ticagrelor Monotherapy Versus Dual-Antiplatelet Therapy After PCI: An Individual Patient-Level Meta-Analysis. JACC Cardiovasc Interv. 2021 Feb 22;14(4):444-456. doi: 10.1016/j.jcin.2020.11.046.
citation: Jin Y, Huang H, Shu X, Chen S, Lu L, Gao X, Wu Z. P2Y12 inhibitor monotherapy and dual antiplatelet therapy after percutaneous coronary intervention: An updated meta-analysis of randomized trials. Thromb Res. 2021 Feb;198:115-121. doi: 10.1016/j.thromres.2020.11.038. Epub 2020 Dec 7.