NCT03411746

Brief Summary

Subarachnoid hemorrhage (SAH) consists of blood extravasation into the space between arachnoid and pia mater. Bleeding is a consequence of cerebral aneurysm rupture in most cases. Despite incidence being only 9 cases out of 1000 people per year, young age and high mortality and morbidity lead to loosing several years of healthy life. Therapy priorities are: preventing rebleeding, with endovascular treatment (when possible) or neurosurgical aneurism clipping; preventing complications associated with blood extravasation into subarachnoid pace, such as acute hydrocephalus treatment (that occurs in 20% of patients), by ventricular external drainage positioning, and delayed cerebral ischemia, mainly due to vasospasm, by endovenous administration of nimodipine; optimal perfusion pressure maintenance. Endogenous osteopontin (OPN) is thought to fulfill a protective activity over ischemic damage both in brain and other organs, including kidney. Besides, recombinant OPN administration markedly decreases ischemic area in a focal cerebral ischemia model, by an antiapoptotic action. Recent in vivo studies on animal models of SAH demonstrated that OPN plays a major role: treatment with OPN seems to prevent vasospasm reducing smooth muscle cells and endothelial cells apoptosis. Microparticles are mediators released by platelets, leucocytes, erythrocyte and endothelial cells. In ischemic stroke endothelial microparticles levels directly relate to clinical severity and ischemic area extension. In typical parenchymal haemorrhage microparticles levels are higher both in blood and in liquor and associated with worse clinical outcome. In SAH increased microparticle levels have been demonstrated, especially in the days of the bleeding, and microparticle levels change based on subtypes. Data disagree about the subtypes involved and their time course. This study aims to evaluate the correlation between OPN and microparticles levels and vasospasm development/ischemic lesion at the CT-scan, and subsequently with medium and long-term patients outcome.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Jan 2018

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 4, 2018

Completed
22 days until next milestone

First Posted

Study publicly available on registry

January 26, 2018

Completed
Same day until next milestone

Study Start

First participant enrolled

January 26, 2018

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 30, 2019

Completed
6 months until next milestone

Study Completion

Last participant's last visit for all outcomes

July 31, 2019

Completed
Last Updated

February 1, 2023

Status Verified

January 1, 2023

Enrollment Period

1 year

First QC Date

January 4, 2018

Last Update Submit

January 31, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • Correlation between OPN and microparticle levels and vasospasm development/ischemic lesion at the CT-scan, and subsequently with medium and long-term patients outcome.

    The levels of OPN and microparticles will be related to: 1. the presence or absence of vasospasm development 2. the presence or absence of ischemic lesion at the CT-scan 3. 3-6 months outcome evaluated with the GOS-E

    Day 7 is the day expected for cerebral vasospasm. Therefore for the correlation between OPN/microparticles and vasospasm/ischemic lesion at CT scan will be evaluated on day 7.

Secondary Outcomes (1)

  • In vitro stimulation of renal and pulmonary endothelial cells with microparticles

    Microparticles isolated from patient blood on the day of the expected maximum release, i.e., day 7 will be incubated in vitro with renal and pulmonary endothelial cells.

Other Outcomes (1)

  • Levels of OPN in liquor and blood of patients with SAH

    Time course of OPN levels measured the day of bleeding and on days 1, 2, 3, 5, 7, 9, 11.

Interventions

Data on the type of patients enrolled have been described already in other sections.

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients with subarachnoid haemorrhage admitted to Neurosurgery or ICU of Ospedale Maggiore della Carita will be considered eligible, when meeting including criteria, within 24h from bleeding.

You may qualify if:

  • Age between 18 and 80 years
  • Subarachnoid haemorrhage from cerebral aneurysm rupture
  • Indication to external liquor drainage

You may not qualify if:

  • Age less than 18 or more than 80 years
  • Bleeding occurred more than 24 hours before admission
  • Known coagulopathies or antiplatelet or vitamin K antagonist treatment

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Rosanna Vaschetto

Novara, 28100, Italy

Location

Related Publications (4)

  • Zhou C, Yamaguchi M, Colohan AR, Zhang JH. Role of p53 and apoptosis in cerebral vasospasm after experimental subarachnoid hemorrhage. J Cereb Blood Flow Metab. 2005 May;25(5):572-82. doi: 10.1038/sj.jcbfm.9600069.

    PMID: 15729295BACKGROUND
  • Schroeter M, Zickler P, Denhardt DT, Hartung HP, Jander S. Increased thalamic neurodegeneration following ischaemic cortical stroke in osteopontin-deficient mice. Brain. 2006 Jun;129(Pt 6):1426-37. doi: 10.1093/brain/awl094. Epub 2006 Apr 24.

    PMID: 16636021BACKGROUND
  • Huang M, Hu YY, Dong XQ. High concentrations of procoagulant microparticles in the cerebrospinal fluid and peripheral blood of patients with acute basal ganglia hemorrhage are associated with poor outcome. Surg Neurol. 2009 Nov;72(5):481-9; discussion 489. doi: 10.1016/j.surneu.2008.12.016. Epub 2009 Mar 27.

    PMID: 19328537BACKGROUND
  • Sanborn MR, Thom SR, Bohman LE, Stein SC, Levine JM, Milovanova T, Maloney-Wilensky E, Frangos S, Kumar MA. Temporal dynamics of microparticle elevation following subarachnoid hemorrhage. J Neurosurg. 2012 Sep;117(3):579-86. doi: 10.3171/2012.6.JNS111163. Epub 2012 Jul 13.

    PMID: 22794324BACKGROUND

Biospecimen

Retention: SAMPLES WITHOUT DNA

plasma, serum, urine, liquor

MeSH Terms

Conditions

Subarachnoid Hemorrhage

Condition Hierarchy (Ancestors)

Intracranial HemorrhagesCerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVascular DiseasesCardiovascular DiseasesHemorrhagePathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Rosanna Vaschetto, Professor

    Università degli Studi del Piemonte Orientale Amedeo Avogadro

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Prof.

Study Record Dates

First Submitted

January 4, 2018

First Posted

January 26, 2018

Study Start

January 26, 2018

Primary Completion

January 30, 2019

Study Completion

July 31, 2019

Last Updated

February 1, 2023

Record last verified: 2023-01

Data Sharing

IPD Sharing
Will not share

Locations