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Status unknownNCT03063541PROTECT-UUpdated Jan 25, 2019

Acetylsalicylic Acid Plus Intensive Blood Pressure Treatment in Patients With Unruptured Intracranial Aneurysms

A Phase 3 interventional study of Acetylsalicylic acid and intensive blood pressure control in Unruptured Intracranial Aneurysms, sponsored by Universitätsmedizin Mannheim. Status unknown at 18 sites in 2 countries. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2019-01-25.

Sponsored by Universitätsmedizin Mannheim · Phase 3, Interventional, and Prevention

The sponsor has not verified this record recently (last verified Jan 2019), so the status shown — last known as Recruiting — may be out of date.
Phase
Phase 3
Study type
Interventional
Enrollment
776
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

Purpose of this study is to assess the hypothesis that a strategy with acetylsalicylic acid (ASA) 100 mg/day, intensive blood pressure treatment (targeted systolic blood pressure below 120 mmHg), and a blood pressure measuring device reduces the risk of aneurysm rupture or growth compared with standard care (i.e. no ASA, blood pressure management according to standard blood pressure management, no blood pressure measuring device)

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Conditions studied

  • Unruptured Intracranial Aneurysms
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In context

Intracranial Aneurysm

427 studies on the registry are indexed under Intracranial Aneurysm; 115 are open to participants now.

This study's planned enrollment of 776 is above the median of 110 across 207 interventional studies indexed under Intracranial Aneurysm.

Browse Intracranial Aneurysm studies →

Lead sponsor

Universitätsmedizin Mannheim is the lead sponsor of 75 studies on the registry; 2 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
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

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
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Study design

Phase
Phase 3
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
776 participants (estimated)

Study arms

  • Experimental
    Acetylsalicylic acid, BP-target 120

    100 mg ASA plus intensified blood pressure management. Recommended systolic blood pressure 120 mm/Hg

    Drug: Acetylsalicylic acid · Other: intensive blood pressure control

  • No intervention
    standard care

    blood pressure management according to guidelines

Interventions

  • DrugAcetylsalicylic acid

    100 mg daily as one tablet

    Also known as: aspirin

  • Otherintensive 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.

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What researchers measure

Primary outcomes

  1. aneurysm rupture or growth

    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)

    Time frame: 36 months

Secondary outcomes

  1. aneurysm volume

    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)

    Time frame: 36 months

  2. new aneurysm

    development of de novo aneurysm on serial imaging

    Time frame: 36 months

  3. therapy of aneurysm

    clipping/coiling during the study period

    Time frame: 36 months

  4. stroke

    any ischemic or haemorrhagic stroke, defined as clinical symptoms for stroke AND a compatible lesion on imaging

    Time frame: 36 months

  5. myocard infarction

    myocardial infarction defined as increase of troponin, creatine-kinase MB and/or presence of new significant Q waves obtained in electrocardiography

    Time frame: 36 months

  6. vascular death

    vascular death (including fatal stroke, fatal myocardial infarction, sudden death)

    Time frame: 36 months

  7. major bleeding

    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

    Time frame: 36 months

  8. death

    death from all other causes

    Time frame: 36 months

  9. achieved blood pressure

    any data on blood pressure management used

    Time frame: 36 months

  10. Incidence of Treatment-Emergent Adverse and Serious Adverse Events

    all adverse and serious adverse events related to the experimental intervention

    Time frame: 36 months

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Study locations

17 of 18 sites recruiting
  • Department of Neurology and Neurosurgery, Goethe University
    Frankfurt am Main, Hessen, Germany
    Recruiting
  • Klinik für Neurochirurgie
    Aachen, 52074, Germany
    Recruiting
  • Neurochirurgische Klinik
    Berlin, 13353, Germany
    Recruiting
  • Neurochirurgische Klinik
    Düsseldorf, 40225, Germany
    Recruiting
  • Neurolgische Klinik
    Erlangen, 91054, Germany
    Recruiting
  • Klinik für Neurochirurgie
    Essen, 45147, Germany
    Recruiting
  • Klinik für Neurochirurgie
    Göttingen, 37037, Germany
    Recruiting
  • Klinik für Neurochirurgie
    Hamburg, 20246, Germany
    Recruiting
  • Neurologische Universitätsklinik
    Heidelberg, 69120, Germany
    Recruiting
  • Department of Neurosurgery, University Hospital Mannheim
    Mannheim, 68167, Germany
    • Nima Etminan, PD Dr. med. · Contact · nima.etminan@umm.de · +49-621-383-2360
    • Katharina Hackenberg, Dr.med. · Contact · katharina.hackenberg@umm.de · +49-621-383-2360
    • Nima Etminan, PD Dr.med. · Principal investigator
    • Daniel Haenggi, Prof. Dr.med. · Sub investigator
    Recruiting
  • Neurochirurgische Klinik und Poliklinik
    München, 81675, Germany
    Active, not recruiting
  • Universitätsklinikum Münster
    Münster, 48149, Germany
    • Markus Holling, MD PhD · Contact · hollingm@ukmuenster.de · +49 251 / 83 -47482
    • Markus Holling, MD PhD · Principal investigator
    Recruiting
  • AMC Department of Neurology
    Amsterdam, 1105AZ, Netherlands
    Recruiting
  • UMCG
    Groningen, Netherlands
    Recruiting
  • Leiden University Medical Center
    Leiden, 2300 RC, Netherlands
    Recruiting
  • Neurochirurgisch Centrum CWZ
    Nijmegen, 6500 GS, Netherlands
    Recruiting
  • Erasmus MC
    Rotterdam, 3015 GD, Netherlands
    Recruiting
  • UMC
    Utrecht, Netherlands
    Recruiting
08

References and documents

Publications

  • Vergouwen MD, Rinkel GJ, Algra A, Fiehler J, Steinmetz H, Vajkoczy P, Rutten FH, Luntz S, Hanggi D, Etminan N. Prospective Randomized Open-label Trial to evaluate risk faCTor management in patients with Unruptured intracranial aneurysms: Study protocol. Int J Stroke. 2018 Dec;13(9):992-998. doi: 10.1177/1747493018790033. Epub 2018 Jul 18. PubMed 30019634 ↗

Individual participant data

Plan to share: Undecided

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 25, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03063541
Lead sponsor
Universitätsmedizin Mannheim
Collaborators
UMC Utrecht, Schwiete Stiftung, Mannheim, Germany, KKS Netzwerk, University of Hamburg-Eppendorf
Responsible party
Nima Etminan (Vice Chair, Universitätsmedizin Mannheim) — Principal investigator
First posted
Feb 24, 2017
Start date
Sep 21, 2017
Primary completion
Oct 2022 (estimated)
Completion
Oct 2022 (estimated)
Last update
Jan 25, 2019

Study contacts

Nima Etminan, PD Dr. med.
Contact
Nima.Etminan@umm.de
+49 621 383-2360
Mervyn DI Vergouwen, M.D., Ph.D.
Contact
M.D.I.Vergouwen@umcutrecht.nl
+31 88 75 50455
Nima Etminan, PD Dr.
principal investigator · UMM, Department of Neurosurgery
Mervyn D Vergouwen, MD,PhD
principal investigator · UMC Utrecht, Department of Neurology and Neurosurgery

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is status unknown, as verified in Jan 2019. You cannot join it, but the record below documents what was studied.

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