UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000037074
Receipt number R000042215
Scientific Title Blood pressure and Relative Optimal Target after Heart surgery in Epidemiologic Registry
Date of disclosure of the study information 2019/07/01
Last modified on 2021/12/21 20:12:20

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Basic information

Public title

Blood pressure and Relative Optimal Target after Heart surgery in Epidemiologic Registry

Acronym

BROTHER study

Scientific Title

Blood pressure and Relative Optimal Target after Heart surgery in Epidemiologic Registry

Scientific Title:Acronym

BROTHER study

Region

Japan


Condition

Condition

coronary artery bypass grafting and/or valve surgery

Classification by specialty

Cardiovascular surgery

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

To investigate the current blood pressure management in patients admitted to intensive care unit (ICU) after cardiac surgery and the association between blood pressure management and patient outcomes.

Basic objectives2

Safety,Efficacy

Basic objectives -Others


Trial characteristics_1


Trial characteristics_2


Developmental phase



Assessment

Primary outcomes

Acute kidney injury

Key secondary outcomes

Mortality
Renal replacement therapy
MAKE (Major Adverse Kidney Events)
Fluid balance
Amount of hemorrhage
Atrial fibrillation
Stroke
Non-occlusive mesenteric ischemia


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

Male and Female

Key inclusion criteria

Adults (>=18 years of age) admitted to ICU after coronary artery bypass grafting and/or valve surgery between January 1st 2018 and December 31st 2018

Key exclusion criteria

Patients discharged from ICU within 24 hours from ICU admission
Emergency surgery
Patients with extracorporeal membrane oxygenation (ECMO), intra-aortic ballon pumping (IABP), or ventricular assist device (VAD) within the first 24 hours from ICU admission
Patients without the documentation of blood pressure between the day before surgery and 365 days before surgery
Patients with invasive arterial blood pressure recordings at more than 1 hour interval

Target sample size

407


Research contact person

Name of lead principal investigator

1st name Yuki
Middle name
Last name Kotani

Organization

Kameda Medical Center

Division name

Department of Intensive Care Medicine

Zip code

296-8602

Address

929 Higashi-cho, Kamogawa, Japan

TEL

04-7092-2211

Email

dkivoar287@gmail.com


Public contact

Name of contact person

1st name Yuki
Middle name
Last name Kotani

Organization

Kameda Medical Center

Division name

Department of Intensive Care Medicine

Zip code

296-8602

Address

929 Higashi-cho, Kamogawa, Japan

TEL

04-7092-2211

Homepage URL


Email

dkivoar287@gmail.com


Sponsor or person

Institute

Kameda Medical Center, Department of Intensive ACare Medicine

Institute

Department

Personal name



Funding Source

Organization

None

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization



Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Kameda Medical Center, Clinical Research Committee

Address

929 Higashi-cho, Kamogawa, Japan

Tel

04-7092-2211

Email

clinical_research@kameda.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

2019 Year 07 Month 01 Day


Related information

URL releasing protocol

https://annalsofintensivecare.springeropen.com/articles/10.1186/s13613-021-00969-4

Publication of results

Published


Result

URL related to results and publications

https://annalsofintensivecare.springeropen.com/articles/10.1186/s13613-021-00969-4

Number of participants that the trial has enrolled

746

Results

One-hundred-and-twenty patients (16.1%) experienced AKI progression. In the multivariable analyses, time-weighted-average MPP-deficit was not associated with AKI progression. Likewise, time spent with MPP-deficit?>?20% was not associated with AKI progression. Among exploratory exposure variables, time-weighted-average CVP, time-weighted-average MPP, and time spent with MPP?<?60 mmHg were associated with AKI progression.

Results date posted

2021 Year 12 Month 21 Day

Results Delayed


Results Delay Reason


Date of the first journal publication of results


Baseline Characteristics

One-hundred-and-twenty patients (16%) had AKI progression. The median age was 71 years, and most patients (73%) had chronic hypertension. Among the vasopressors and inotropes used in the first 24 h, dobutamine was the most frequently used drug (53%), followed by norepinephrine (40%). The baseline serum creatinine level was higher in the AKI group. Although preoperative MAP was similar between the two groups, preoperative MPP was lower in the AKI group.

Participant flow

Among 1568 adult patients admitted to the ICUs after CABG or valve surgery between January and December 2018, we registered 870 patients on the BROTHER study. During the data collection period of this study, a pandemic of COVID-19 occurred, which made data collection difficult for some investigators, and we could not enroll 42 patients. After excluding 124 patients, we analyzed 746 patients. No patients were lost to follow-up.

Adverse events

Not applicable.

Outcome measures

One-hundred-and-twenty patients (16%) had AKI progression. Seven patients (0.9%) experienced MAKE30, and hospital mortality occurred in four patients (0.5%).

Plan to share IPD


IPD sharing Plan description



Progress

Recruitment status

Main results already published

Date of protocol fixation

2019 Year 07 Month 01 Day

Date of IRB

2019 Year 07 Month 02 Day

Anticipated trial start date

2019 Year 07 Month 02 Day

Last follow-up date

2020 Year 09 Month 30 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Design: multicenter retrospective cohort study
Inclusion criteria: adults (>=18 years of age) who underwent elective coronary artery bypass grafting and/or valve surgery and were admitted to a ICU in Japan between January 2017 and December 2018.
Exclusion criteria: 1) patients with ECMO, IABP, or VAD, 2) readmissions, 3) patients who stayed ICU for <24 hours
Variables: hemodynamic parameters during the first 24 hours from ICU admission, serum creatinine level and urine output during first 72 hours from ICU admission, baseline characteristics, operation information, and outcomes at ICU and hospital discharge


Management information

Registered date

2019 Year 06 Month 14 Day

Last modified on

2021 Year 12 Month 21 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000042215