Acetylsalicylic Acid Plus Intensive Blood Pressure Treatment in Patients With Unruptured Intracranial Aneurysms (PROTECT-U)
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ClinicalTrials.gov Identifier: NCT03063541 |
Recruitment Status : Unknown
Verified January 2019 by Nima Etminan, Universitätsmedizin Mannheim.
Recruitment status was: Recruiting
First Posted : February 24, 2017
Last Update Posted : January 25, 2019
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Condition or disease | Intervention/treatment | Phase |
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Unruptured Intracranial Aneurysms | Drug: Acetylsalicylic acid Other: intensive blood pressure control | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 776 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Intervention Model Description: | controlled open trial, randomized 1:1 |
Masking: | Single (Outcomes Assessor) |
Masking Description: | observer blinding |
Primary Purpose: | Prevention |
Official Title: | Prospective Randomized Open-label Trial to Evaluate Risk faCTor Management in Patients With Unruptured Intracranial Aneurysms |
Actual Study Start Date : | September 21, 2017 |
Estimated Primary Completion Date : | October 2022 |
Estimated Study Completion Date : | October 2022 |
Arm | Intervention/treatment |
---|---|
Experimental: Acetylsalicylic acid, BP-target 120
100 mg ASA plus intensified blood pressure management. Recommended systolic blood pressure 120 mm/Hg
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Drug: Acetylsalicylic acid
100 mg daily as one tablet
Other Name: aspirin Other: intensive blood pressure control Patients are encouraged to seek any therapy to have a systolic blood pressure of 120 or below. They will be provided with a blood pressure measurement device and are advised to control blood pressure daily. |
No Intervention: standard care
blood pressure management according to guidelines
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- aneurysm rupture or growth [ Time Frame: 36 months ]aneurysm rupture (i.e. aneurysmal subarachnoid hemorrhage, SAH) or growth (increase in any aneurysm diameter by ≥1mm) on serial imaging (either two MR or CT angiographies)
- aneurysm volume [ Time Frame: 36 months ]difference of aneurysm volume (in computerized measurements defined as increase of aneurysm volume in computerized measurements by >10% and >3mm3 or aneurysm shape (e.g. development of daughter sac)
- new aneurysm [ Time Frame: 36 months ]development of de novo aneurysm on serial imaging
- therapy of aneurysm [ Time Frame: 36 months ]clipping/coiling during the study period
- stroke [ Time Frame: 36 months ]any ischemic or haemorrhagic stroke, defined as clinical symptoms for stroke AND a compatible lesion on imaging
- myocard infarction [ Time Frame: 36 months ]myocardial infarction defined as increase of troponin, creatine-kinase MB and/or presence of new significant Q waves obtained in electrocardiography
- vascular death [ Time Frame: 36 months ]vascular death (including fatal stroke, fatal myocardial infarction, sudden death)
- major bleeding [ Time Frame: 36 months ]major spontaneous bleeding requiring hospitalisation defined as substantially disabling bleeding, intraocular bleeding leading to the loss of vision, or bleeding necessitating the transfusion of at least 2 units of erythrocyte concentrates
- death [ Time Frame: 36 months ]death from all other causes
- achieved blood pressure [ Time Frame: 36 months ]any data on blood pressure management used
- Incidence of Treatment-Emergent Adverse and Serious Adverse Events [ Time Frame: 36 months ]all adverse and serious adverse events related to the experimental intervention

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Patients 18 years or older with an intradural, saccular unruptured aneurysm (UIA) in whom it is decided not to intervene with preventive endovascular or neurosurgical repair of the aneurysm and who are monitored on a regular base for aneurysm growth
- Last aneurysm imaging with either CTA/MRA/DSA within the last 3 months
Exclusion Criteria:
- All non-saccular UIAs or aneurysms related to arteriovenous malformations
- Frequent ASA use and/or indication for a vitamin K antagonist, or direct oral anticoagulant (DOAC) treatment at baseline
- Contra-indication for ASA
- History of hypersensitivity to ASA or to any other drug with similar chemical structure or to any excipient present in the pharmaceutical form of ASA
- Chronic kidney disease stage IV and V (GFR < 30 mL/min/1.73 m2)
- Pregnancy and lactation
- Participation in another clinical trial or observation period of competing trials, respectively
- Life-expectancy <3 years

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03063541
Contact: Nima Etminan, PD Dr. med. | +49 621 383-2360 | Nima.Etminan@umm.de | |
Contact: Mervyn DI Vergouwen, M.D., Ph.D. | +31 88 75 50455 | M.D.I.Vergouwen@umcutrecht.nl |
Germany | |
Department of Neurology and Neurosurgery, Goethe University | Recruiting |
Frankfurt am Main, Hessen, Germany | |
Contact: Helmuth Steinmetz, Prof. Dr. +49 69 6301-5769 helmuth.steinmetz@em.uni-frankfurt.de | |
Contact: Jürgen Konczalla, PD Dr J.Konczalla@med.uni-frankfurt.de | |
Principal Investigator: Helmuth Steinmetz, Prof. Dr. | |
Klinik für Neurochirurgie | Recruiting |
Aachen, Germany, 52074 | |
Contact: Gerrit A Schubert, Prof. Dr. +49 241 8082420 gschubert@ukaachen.de | |
Contact: Rastislav Pjontek, Dr. rpjontek@ukaachen.de | |
Principal Investigator: Gerrit A Schubert, Prof. Dr. | |
Neurochirurgische Klinik | Recruiting |
Berlin, Germany, 13353 | |
Contact: Peter Vajkoczy, Prof. Dr. +49 30 450 560900 peter.vajkoczy@charite.de | |
Contact: Lars Wessels, Dr. 030 450 56 ext 0002 lars.wessels@charite.de | |
Principal Investigator: Peter Vajkoczy, Prof. Dr. | |
Neurochirurgische Klinik | Recruiting |
Düsseldorf, Germany, 40225 | |
Contact: Athanasios Petridis, Prof. Dr. +49 211810 ext 4514 athanasios.petridis@duesseldorf.de | |
Contact: Kerim Beseoglu, Dr. | |
Neurolgische Klinik | Recruiting |
Erlangen, Germany, 91054 | |
Contact: Hagen Huttner, Prof. Dr. +4991318536597 hagen.huttner@uk-erlangen.de | |
Contact: Bernd Kallmünzer, Dr. bernd.kallmuenzer@uk-erlangen.de | |
Principal Investigator: Hagen Huttner, Prof. Dr. | |
Klinik für Neurochirurgie | Recruiting |
Essen, Germany, 45147 | |
Contact: Ramazan Jabbarli, PD Dr. ramazan.jabbarli@uk-essen.de | |
Principal Investigator: Ramazan Jabbarli, PhD | |
Klinik für Neurochirurgie | Recruiting |
Göttingen, Germany, 37037 | |
Contact: Dorothe Mielke, Prof. Dr. dorothe.mielke@med.uni-goettingen.de | |
Contact: Katharina Lange katharina.lange@med.uni-goettingen.de | |
Principal Investigator: Veit Rohde, Prof. Dr. | |
Klinik für Neurochirurgie | Recruiting |
Hamburg, Germany, 20246 | |
Contact: Nils O Schmidt, PD Dr. nschmidt@uke.de | |
Contact: Jan Regelsberger, Prof. Dr. j.regelsberger@uke.de | |
Principal Investigator: Nils O Schmidt, PD Dr. | |
Neurologische Universitätsklinik | Recruiting |
Heidelberg, Germany, 69120 | |
Contact: Peter A Ringleb, Prof. Dr. +496221 56- ext 8243 | |
Contact: Elisabeth Beyrle +406221 563- ext 8856 elisabeth.beyrle@med.uni-heidelberg.de | |
Principal Investigator: Peter A Ringleb, Prof. Dr. | |
Department of Neurosurgery, University Hospital Mannheim | Recruiting |
Mannheim, Germany, 68167 | |
Contact: Nima Etminan, PD Dr. med. +49-621-383-2360 nima.etminan@umm.de | |
Contact: Katharina Hackenberg, Dr.med. +49-621-383-2360 katharina.hackenberg@umm.de | |
Principal Investigator: Nima Etminan, PD Dr.med. | |
Sub-Investigator: Daniel Haenggi, Prof. Dr.med. | |
Neurochirurgische Klinik und Poliklinik | Active, not recruiting |
München, Germany, 81675 | |
Universitätsklinikum Münster | Recruiting |
Münster, Germany, 48149 | |
Contact: Markus Holling, MD PhD +49 251 / 83 -47482 hollingm@ukmuenster.de | |
Principal Investigator: Markus Holling, MD PhD | |
Netherlands | |
AMC Department of Neurology | Recruiting |
Amsterdam, Netherlands, 1105AZ | |
Contact: Yvo B. W. Roos, Prof. Dr. +31-20-5663942 y.b.roos@amc.uva.nl | |
Contact: Rita Sprengers r.g.sprengers@amc.uva.nl | |
Principal Investigator: Yvo Roos, Prof. Dr. | |
UMCG | Recruiting |
Groningen, Netherlands | |
Contact: Maarten Uyttenboogaart, Dr. m.uyttenboogaart@umcg.nl | |
Principal Investigator: Maarten Uyttenboogaart, Dr. | |
Leiden University Medical Center | Recruiting |
Leiden, Netherlands, 2300 RC | |
Contact: Ghislaine Holswilder, MD g.holswilder@lumc.nl | |
Contact: A van der Meij, MD a.van_der_meij@lumc.nl | |
Principal Investigator: Marieke JH Wermer, MD PhD FESO | |
Neurochirurgisch Centrum CWZ | Recruiting |
Nijmegen, Netherlands, 6500 GS | |
Contact: Jeroen Boogaarts, Dr. jeroen.boogaarts@radboudumc.nl | |
Contact: Viktoria Shimanskaya, Dr vika.shimanskaya@radboudumc.nl | |
Principal Investigator: Jeroen Boogarts, Dr. | |
Erasmus MC | Recruiting |
Rotterdam, Netherlands, 3015 GD | |
Contact: Naziha el Ghannouti +31 10 704 38 18 n.elghannouti@erasmusmc.nl | |
Principal Investigator: Bob Roozenbeek, MD PhD | |
UMC | Recruiting |
Utrecht, Netherlands | |
Contact: Mervyn D. I. Vergouwen, Dr. +31 (0)88 755 0455 M.D.I.Vergouwen@umcutrecht.nl | |
Contact: Jacco M. Westeneng J.M.Westeneng-4@umcutrecht.nl | |
Principal Investigator: Mervyn D. I. Vergouwen, Dr. |
Principal Investigator: | Nima Etminan, PD Dr. | UMM, Department of Neurosurgery | |
Principal Investigator: | Mervyn D Vergouwen, MD,PhD | UMC Utrecht, Department of Neurology and Neurosurgery |
Responsible Party: | Nima Etminan, Vice Chair, Universitätsmedizin Mannheim |
ClinicalTrials.gov Identifier: | NCT03063541 |
Other Study ID Numbers: |
PROTECT-U_V2.2_20_Feb_2017 2017-000514-35 ( EudraCT Number ) |
First Posted: | February 24, 2017 Key Record Dates |
Last Update Posted: | January 25, 2019 |
Last Verified: | January 2019 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Undecided |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Product Manufactured in and Exported from the U.S.: | No |
Intracranial Aneurysm Aneurysm Vascular Diseases Cardiovascular Diseases Intracranial Arterial Diseases Cerebrovascular Disorders Brain Diseases Central Nervous System Diseases Nervous System Diseases Aspirin Anti-Inflammatory Agents, Non-Steroidal Analgesics, Non-Narcotic Analgesics |
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