UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000056581
Receipt number R000063870
Scientific Title Kinetics and prognostic performance of serum renin concentration in critically ill hypotensive patients: a multicenter prospective cohort study
Date of disclosure of the study information 2025/01/10
Last modified on 2024/12/29 12:56:59

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Basic information

Public title

Temporal changes and outcome prediction of blood renin levels in patients with hypotension

Acronym

RICH study

Scientific Title

Kinetics and prognostic performance of serum renin concentration in critically ill hypotensive patients: a multicenter prospective cohort study

Scientific Title:Acronym

RICH study

Region

Japan


Condition

Condition

Shock

Classification by specialty

Intensive care medicine

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

1. To describe the kinetics of serum renin levels during the first 24 hours after vasopressor initiation in patients with hypotension treated in the intensive care unit (ICU).
2. To specify which renin value predicts 30-day mortality best among various variables deriving from six measurements during the 24 hours.
3. To visualize the trajectories of serum renin concentration and identify clinical phenotypes characterizing each trajectory.

Basic objectives2

Efficacy

Basic objectives -Others


Trial characteristics_1

Exploratory

Trial characteristics_2

Explanatory

Developmental phase

Not applicable


Assessment

Primary outcomes

30-day mortality

Key secondary outcomes

1. ICU mortality
2. Major Adverse Kidney Events at day 30 (MAKE30)
3. Dependence on renal replacement therapy at day 30
4. Persistent renal dysfunction at day 30
5. Severe acute kidney injury at day 7
6. Days of alive and free from intravenous vasopressor therapy at day 30


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

Patients meeting all of the following criteria will be included.
1. Admitted to the ICU within 24 hours
2. Aged 18 years or older
3. Requiring a continuous infusion of vasopressors (i.e., norepinephrine, vasopressin, epinephrine, phenylephrine, dopamine) to maintain the target blood pressure
4. Expected to stay in the ICU longer than 24 hours

Key exclusion criteria

Patients meeting either of the following criteria will be excluded.
1. History of primary or secondary aldosteronism
2. Active palliation
3. Pregnancy or lactation
4. Absence of informed consent from the study participant or their next of kin
5. Judgment of the treating physician

Target sample size

400


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, Chiba, Japan

TEL

04-7092-2211

Email

kotani.yuki@kameda.jp


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, Chiba, Japan

TEL

04-7092-2211

Homepage URL


Email

kotani.yuki@kameda.jp


Sponsor or person

Institute

Kameda Medical Center

Institute

Department

Personal name

Yuki Kotani


Funding Source

Organization

Japanese Society of Intensive Care Medicine

Organization

Division

Category of Funding Organization

Non profit foundation

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor


Name of secondary funder(s)



IRB Contact (For public release)

Organization

Ethics Committee Tohoku University Hospital

Address

1-1, Seiryo-cho, Aoba-ku, Sendai, Japan

Tel

022-728-4105

Email

ec@rinri.hosp.tohoku.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 01 Month 10 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 01 Month 10 Day

Date of IRB


Anticipated trial start date

2025 Year 04 Month 01 Day

Last follow-up date

2026 Year 06 Month 30 Day

Date of closure to data entry


Date trial data considered complete


Date analysis concluded



Other

Other related information

Study Period
April 2025 (approval date)-June 2027
- Enrollment period: Until May 2026
- Follow-up period: Until June 2026

Inclusion Criteria
Participants must meet all of the following criteria:
1. Admitted to the ICU within 24 hours.
2. 18 years or older.
3. Receipt of continuous vasopressor infusion (norepinephrine, vasopressin, adrenaline, phenylephrine, or dopamine, alone or in combination).
4. Expected to stay in the ICU for more than 24 hours after enrollment.

Exclusion Criteria
Participants will be excluded if they meet any of the following criteria:
1. History of primary or secondary hyperaldosteronism.
2. Decision for aggressive palliative care.
3. Pregnancy or breastfeeding.
4. Decline to participate by the subject or their surrogate decision-maker.
5. Determination by the attending physician that study participation is inappropriate.

Study Design
A multicenter prospective cohort study.

Study Methods
This study targets adult patients in ICUs who require continuous intravenous infusion of vasopressors. Serum renin concentration will be measured six times within 24 hours of enrollment to elucidate its dynamics and validate its prognostic capability.

Primary Outcome
30-day mortality.

Secondary Outcomes
- ICU mortality.
- Major Adverse Kidney Events at 30 days (MAKE30: a composite outcome of mortality, dependency on renal replacement therapy [RRT], and persistent renal dysfunction).
- RRT dependency at 30 days.
- Persistent renal dysfunction at 30 days.
- Severe acute kidney injury within 7 days.
- Days alive and free from vasopressors at 30 days.

Statistical Analysis
Serum renin concentrations will be described as medians (interquartile ranges) at each measurement point. The main exposure variable will be the difference in serum renin concentration between 6 hours post-enrollment and baseline. Its association with the primary outcome, 30-day mortality, will be assessed using univariable and multivariable logistic regression analyses.


Management information

Registered date

2024 Year 12 Month 26 Day

Last modified on

2024 Year 12 Month 29 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000063870