UMIN-ICDS Clinical Trial

Unique ID issued by UMIN UMIN000062858
Receipt number R000071310
Scientific Title Impact of the Fentanyl Supply Shortage on 28-Day Ventilator-Free Days -Changes in Analgesia and Sedation Strategies Following the Fentanyl Supply Shortage-
Date of disclosure of the study information 2026/09/09
Last modified on 2026/09/09 14:36:33

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Basic information

Public title

Impact of the Fentanyl Supply Shortage on 28-Day Ventilator-Free Days
-Changes in Analgesia and Sedation Strategies Following the Fentanyl Supply Shortage-

Acronym

Impact of the Fentanyl Supply Shortage on 28-Day Ventilator-Free Days
-Changes in Analgesia and Sedation Strategies Following the Fentanyl Supply Shortage-

Scientific Title

Impact of the Fentanyl Supply Shortage on 28-Day Ventilator-Free Days
-Changes in Analgesia and Sedation Strategies Following the Fentanyl Supply Shortage-

Scientific Title:Acronym

Impact of the Fentanyl Supply Shortage on 28-Day Ventilator-Free Days
-Changes in Analgesia and Sedation Strategies Following the Fentanyl Supply Shortage-

Region

Japan


Condition

Condition

Critically ill patients requiring mechanical ventilation

Classification by specialty

Intensive care medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

The primary objective of this retrospective multicenter study is to evaluate the impact of changes in analgesia and sedation strategies associated with the fentanyl supply shortage on 28-day ventilator-free days among critically ill adult patients receiving invasive mechanical ventilation in the intensive care unit. Using the One ICU database, changes before and after the supply shortage will be compared across institutions and assessed using a difference-in-differences approach.

Basic objectives2

Others

Basic objectives -Others

To characterize changes in analgesia and sedation strategies before and after the fentanyl supply shortage, including the selection, dosage, and combination of analgesic and sedative agents in mechanically ventilated adult ICU patients.

Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

28-day ventilator-free days (VFDs)

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


Not applicable

Age-upper limit


Not applicable

Gender

Male and Female

Key inclusion criteria

Adult patients aged 18 years or older who were admitted to the ICU at participating institutions between January 1, 2022, and December 31, 2025, received invasive mechanical ventilation, and had the required data available in the One ICU database.

Key exclusion criteria

Patients younger than 18 years
Patients who did not receive invasive mechanical ventilation during their ICU stay
Patients with missing data for the primary outcome or key covariates required for the analysis
Duplicate records from the same hospitalization (only the first ICU admission will be included)

Target sample size

5000


Research contact person

Name of lead principal investigator

1st name Oto
Middle name
Last name Jun

Organization

Tokushima university Graduate School of Biomedical Sciences

Division name

Department of Emergency and Critical Care Medicine

Zip code

7708503

Address

2-50-1 Kuramoto-cho, Tokushima City, Tokushima 770-8503, Japan

TEL

0886339347

Email

joto@tokushima-u.ac.jp


Public contact

Name of contact person

1st name Nunomura
Middle name
Last name Toshiyuki

Organization

Tokushima university hospital

Division name

Department of Emergency and Disaster Medicine

Zip code

7708503

Address

2-50-1 Kuramoto-cho, Tokushima City, Tokushima 770-8503, Japan

TEL

09032203320

Homepage URL


Email

nunotsyk2009@gmail.com


Sponsor or person

Institute

Tokushima university hospital

Institute

Department

Personal name



Funding Source

Organization

Tokushima university hospital

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

Department of Clinical and Translational Science, Tokushima University Hospital

Address

2-50-1 Kuramoto-cho, Tokushima City, Tokushima 770-8503, Japan

Tel

0886339294

Email

awachiken@tokushima-u.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

2026 Year 09 Month 09 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

2026 Year 08 Month 03 Day

Date of IRB


Anticipated trial start date

2026 Year 09 Month 29 Day

Last follow-up date

2028 Year 03 Month 31 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

This is a multicenter retrospective observational study using the OneICU database. Adult patients admitted to participating ICUs between January 1, 2022 and December 31, 2025 who received invasive mechanical ventilation will be included. We will evaluate changes in analgesic and sedative use before and after the fentanyl supply restriction and investigate the association between the fentanyl supply restriction and clinical outcomes, including 28-day ventilator-free days. Changes in the use of alternative analgesic agents and analgosedation strategies will also be evaluated. No additional intervention, examination, or specimen collection will be performed, and only routinely collected clinical data will be analyzed.


Management information

Registered date

2026 Year 09 Month 09 Day

Last modified on

2026 Year 09 Month 09 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000071310