UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000042109
Receipt number R000048049
Scientific Title Retrospective study of the inhibitory effect of paroxetine on the cerebral aneurysm growth and recurrence after endovascular treatment for cerebral aneurysms
Date of disclosure of the study information 2020/10/14
Last modified on 2020/10/14 10:29:52

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Basic information

Public title

Retrospective study of the inhibitory effect of paroxetine on the cerebral aneurysm growth and recurrence after endovascular treatment for cerebral aneurysms

Acronym

Drug for aneurysm study

Scientific Title

Retrospective study of the inhibitory effect of paroxetine on the cerebral aneurysm growth and recurrence after endovascular treatment for cerebral aneurysms

Scientific Title:Acronym

Drug for aneurysm study

Region

Japan


Condition

Condition

cerebral aneurysm

Classification by specialty

Neurosurgery

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The rupture of a cerebral aneurysm is a major cause of life-threatening subarachnoid hemorrhages. Currently, there are surgical interventions but no effective drug treatment for cerebral aneurysms. We hypothesized that cerebral aneurysms are induced when endothelial cells sense an increase in wall shear stress and respond by triggering the induction of biochemical mediators which damage the vascular wall components, thereby giving rise to the cerebral aneurysm. P2X4 purinoceptor is involved in the shear stress response of vascular endothelial cells, contributing to vascular remodeling. Using P2X4 knockout mice and P2X4 inhibitor, paroxetine, we indicated that both the disruption and inhibition of P2X4 resulted in a significant reduction of cerebral aneurysm induction. The larger the cerebral aneurysm, the easier it is to rupture, and by suppressing its growth, the rupture rate can be reduced. Therefore, paroxetine may be able to diminish rupture by suppressing aneurysm growth. Paroxetine may have potential for the clinical treatment of cerebral aneurysm, since this agent exhibits efficacy as a clinical antidepressant. We thus retrospectively examine whether the growth of aneurysms and recurrence after coil embolization can be suppressed by paroxetine.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase

Not applicable


Assessment

Primary outcomes

To compare the rate of cerebral aneurysm growth between unruptured cerebral aneurysms who were taking paroxetine and those who were not taking paroxetine.

Key secondary outcomes

To compare the postoperative recanalization rate between patients who underwent coil embolization of a cerebral aneurysm who were taking paroxetine and those who were not taking paroxetine.


Base

Study type

Observational


Study design

Basic design


Randomization


Randomization unit


Blinding


Control


Stratification


Dynamic allocation


Institution consideration


Blocking


Concealment



Intervention

No. of arms


Purpose of intervention


Type of intervention


Interventions/Control_1


Interventions/Control_2


Interventions/Control_3


Interventions/Control_4


Interventions/Control_5


Interventions/Control_6


Interventions/Control_7


Interventions/Control_8


Interventions/Control_9


Interventions/Control_10



Eligibility

Age-lower limit

20 years-old <=

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

1) Unruptured saccular cerebral aneurysm with a major axis of 3 mm or more or saccular cerebral aneurysm with a major axis of 3 mm or more that underwent coil embolization (ruptured and unruptured cerebral aneurysm)
(2) Cases in which cerebrovascular imaging (MRA, 3DCTA, or cerebrovascular angiography) has been performed at least twice
(3) Cases in which the interval between the first and final cerebrovascular imaging tests is at least half a year
(4) Cases in which paroxetine was continuously taken during the first and final cerebrovascular imaging examinations, and cases in which paroxetine was not taken at all in the control group during the period.
(5) In cases of coil embolization, cases in which cerebrovascular imaging at the time of surgery can be obtained
(6) Cases aged 20 years or older at the time of the first cerebrovascular imaging test

Key exclusion criteria

(1) Cases of dissecting cerebral aneurysm
(2) Cases of bacterial cerebral aneurysm
(3) Cases of cerebrovascular imaging test results where the size of the cerebral aneurysm and the presence or absence of recurrence after coil embolization cannot be determined
(4) Cases in which the principal investigator or the research coordinator judged that participation in this study was not appropriate

Target sample size

500


Research contact person

Name of lead principal investigator

1st name Youko
Middle name
Last name Niwa

Organization

National Hospital Organization Kyoto Medical Center

Division name

Department of Neurosurgery

Zip code

612-8555

Address

1-1, Mukaihara-cho, Fukakusa, Fushimi-ku, Kyoto City

TEL

075-641-9161

Email

yniwa@hotmail.com


Public contact

Name of contact person

1st name Drug for aneurysm Study
Middle name
Last name Secretariat

Organization

National Hospital Organization Kyoto Medical Center

Division name

Department of Neurosurgery

Zip code

612-8555

Address

1-1, Mukaihara-cho, Fukakusa, Fushimi-ku, Kyoto City

TEL

075-641-9161

Homepage URL


Email

drug.for.aneurysm@gmail.com


Sponsor or person

Institute

National Hospital Organization

Institute

Department

Personal name



Funding Source

Organization

National Hospital Organization

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor

J-ASPECT Study

Name of secondary funder(s)



IRB Contact (For public release)

Organization

National Hospital Organization

Address

2-5-21, Higashigaoka, Meguro-ku, Tokyo

Tel

03-5712-5050

Email

700-kenkyu@mail.hosp.go.jp


Secondary IDs

Secondary IDs

NO

Study ID_1


Org. issuing International ID_1


Study ID_2


Org. issuing International ID_2


IND to MHLW



Institutions

Institutions



Other administrative information

Date of disclosure of the study information

2020 Year 10 Month 14 Day


Related information

URL releasing protocol


Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled


Results


Results date posted


Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics


Participant flow


Adverse events


Outcome measures


Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Preinitiation

Date of protocol fixation

2020 Year 09 Month 23 Day

Date of IRB


Anticipated trial start date

2020 Year 10 Month 31 Day

Last follow-up date

2021 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Image data, case background and imaging test information


Management information

Registered date

2020 Year 10 Month 14 Day

Last modified on

2020 Year 10 Month 14 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000048049


Research Plan
Registered date File name

Research case data specifications
Registered date File name

Research case data
Registered date File name