UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000059799
Receipt number R000068374
Scientific Title A Study on the Efficacy of Emergency Uterine Artery Embolisation (UAE) for Obstetric Haemorrhage
Date of disclosure of the study information 2025/11/17
Last modified on 2025/11/17 11:10:47

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Basic information

Public title

Shock Index-Guided Selection of Embolic Material for Emergency Uterine Artery Embolization in Postpartum Hemorrhage

Acronym

Shock Index-Guided Selection of Embolic Material for Emergency Uterine Artery Embolization in Postpartum Hemorrhage

Scientific Title

A Study on the Efficacy of Emergency Uterine Artery Embolisation (UAE) for Obstetric Haemorrhage

Scientific Title:Acronym

A Study on the Efficacy of Emergency Uterine Artery Embolisation (UAE) for Obstetric Haemorrhage

Region

Japan


Condition

Condition

Obstetric hemorrhage

Classification by specialty

Obstetrics and Gynecology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

Uterine artery embolization (UAE) is an effective hemostatic intervention for managing obstetric hemorrhage. Temporary embolic agents are generally preferred to preserve fertility; however, achieving hemostasis can be challenging in patients with disseminated intravascular coagulation (DIC). This study aimed to determine the optimal selection of embolic agents based on the shock index (SI), a simple indicator of bleeding severity, to help minimize bleeding.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2

Pragmatic

Developmental phase

Not applicable


Assessment

Primary outcomes

This study aimed to clarify the optimal selection of embolic material based on SI values.
Furthermore, it aimed to examine the association with prior uterine surgery history and the use of assisted reproductive technology (ART), as well as the relationship between embolic material and fertility.

Key secondary outcomes



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

18 years-old <=

Age-upper limit


Not applicable

Gender

Female

Key inclusion criteria

Patients requiring uterine artery embolisation at our hospital due to uncontrollable haemorrhage from the following conditions:
1. Postpartum haemorrhage
2. Placenta praevia, placenta accreta haemorrhage
3. Haemorrhage due to retained placenta accreta
4. Uterine inversion
5. Perineal laceration
6. Post-hysterectomy haemorrhage

Key exclusion criteria

Patients under 18 years of age at the time of implementation in the UAE
Patients who declined to participate in the study

Target sample size

48


Research contact person

Name of lead principal investigator

1st name Hiroe
Middle name
Last name Ito

Organization

Tokyo Medical University

Division name

Department of Obstetrics and gynecology

Zip code

160-0023

Address

6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo, Japan

TEL

03-3342-6111

Email

hiroe@tokyo-med.ac.jp


Public contact

Name of contact person

1st name Hiroe
Middle name
Last name Ito

Organization

Tokyo Medical University

Division name

Department of Obstetrics and gynecology

Zip code

160-0023

Address

6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo, Japan

TEL

0333426111

Homepage URL


Email

hiroe@tokyo-med.ac.jp


Sponsor or person

Institute

Tokyo Medical University

Institute

Department

Personal name



Funding Source

Organization

none

Organization

Division

Category of Funding Organization

Other

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Tokyo Medical University

Address

6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo, Japan

Tel

0333426111

Email

hiroe@tokyo-med.ac.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

2025 Year 11 Month 17 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

2025 Year 02 Month 12 Day

Date of IRB


Anticipated trial start date

2025 Year 11 Month 18 Day

Last follow-up date

2027 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

We retrospectively analyzed 48 cases of emergency UAE performed for postpartum hemorrhage (PPH) between January 2012 and December 2024. Patients were categorized into three groups according to SI at the time of UAE:group A (n = 19) with SI is less than 1.0, group B (n = 18) with SI greater than or equal to 1.0 but less than 1.5, and group C (n = 11) withSI of 1.5 or above. Patient characteristics, embolic materials used, perioperative outcomes, and subsequent pregnancy results were evaluated.


Management information

Registered date

2025 Year 11 Month 17 Day

Last modified on

2025 Year 11 Month 17 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000068374