UMIN-CTR Clinical Trial

Unique ID issued by UMIN UMIN000060242
Receipt number R000068891
Scientific Title Effects of Additional Spironolactone on Persistent Proteinuria After SGLT2 Inhibitor Therapy in Patients with Diabetic Kidney Disease
Date of disclosure of the study information 2026/03/01
Last modified on 2025/12/31 09:56:23

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Basic information

Public title

Effects of Additional Spironolactone on Persistent Proteinuria After SGLT2 Inhibitor Therapy in Patients with Diabetic Kidney Disease

Acronym

Spironolactone Improved Kidney Function after SGLT2i-Therapy

Scientific Title

Effects of Additional Spironolactone on Persistent Proteinuria After SGLT2 Inhibitor Therapy in Patients with Diabetic Kidney Disease

Scientific Title:Acronym

Effects of Additional Spironolactone on Persistent Proteinuria After SGLT2 Inhibitor Therapy in Patients with Diabetic Kidney Disease

Region

Japan


Condition

Condition

Type-2 diabetes

Classification by specialty

Medicine in general Endocrinology and Metabolism Nephrology

Classification by malignancy

Others

Genomic information

NO


Objectives

Narrative objectives1

spironolactone therapy-induced changes in urinary protein-to-creatinine ratio (UPCR) levels

Basic objectives2

Others

Basic objectives -Others

the spironolactone treatment-induced changes in the annual rate of eGFR decline

Trial characteristics_1

Others

Trial characteristics_2

Others

Developmental phase

Not applicable


Assessment

Primary outcomes

The primary endpoint was spironolactone therapy-induced changes in urinary protein-to-creatinine ratio (UPCR) levels.

Key secondary outcomes

The secondary outcome was the spironolactone treatment-induced changes in the annual rate of eGFR decline.


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

85 years-old >

Gender

Male and Female

Key inclusion criteria

stable adult T2DM patients demonstrated persistent proteinuria (UPCR; A2 to A3; >0.15 g/gCre) despite more than 6 months of SGLT2i therapy (dapagliflozin; 10 mg/day) at the outpatient's department in Jinnouchi Hospital between January 2019 and July 2022 and initiated additional spironolactone therapy (initial dose; 12.5 mg/day). Patients were included if levels of proteinuria and eGFR measurements were performed both before and after the initiation of spironolactone and follow-up periods were 12 months.

Key exclusion criteria

Patients with hyperkalemia (K>5.5), cancer, severe infection, recent cardiovascular events, heart failure (New York Heart Association class III or higher), advanced chronic kidney disease (eGFR<15 mL/min/1.73 m2), advanced hepatic diseases, or concomitant use of eplerenone were excluded.

Target sample size

29


Research contact person

Name of lead principal investigator

1st name Seigo
Middle name
Last name Sugiyama

Organization

Jinnouchi Hospital

Division name

Diabetes Care Center

Zip code

862-0976

Address

6-2-3 Kuhonji Chuo-ku, Kumamoto City, Kumamoto Japan

TEL

0963630011

Email

seigosugiyama@jinnouchi.or.jp


Public contact

Name of contact person

1st name Seigo
Middle name
Last name Sugiyama

Organization

Jinnouchi Hospital

Division name

Diabetes Care Center

Zip code

862-0976

Address

6-2-3 Kuhonji Chuo-ku, Kumamoto City, Kumamoto Japan

TEL

0963630011

Homepage URL


Email

seigosugiyama@jinnouchi.or.jp


Sponsor or person

Institute

Jinnouchi Hospital

Institute

Department

Personal name

Seigo Sugiyama


Funding Source

Organization

Jinnouchi Hospital

Organization

Division

Category of Funding Organization

Self funding

Nationality of Funding Organization

Japan


Other related organizations

Co-sponsor

None

Name of secondary funder(s)

None


IRB Contact (For public release)

Organization

Jinnouchi Hospital

Address

6-2-3 Kuhonji Chuo-ku, Kumamoto City, Kumamoto Japan

Tel

0963630011

Email

seigosugiyama@jinnouchi.or.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

熊本県


Institutions

Institutions

陣内病院


Other administrative information

Date of disclosure of the study information

2026 Year 03 Month 01 Day


Related information

URL releasing protocol

None

Publication of results

Unpublished


Result

URL related to results and publications


Number of participants that the trial has enrolled

29

Results

Spironolactone significantly decreased proteinuria in patients with persistent proteinuria after SGLT2i therapy.

Results date posted

2025 Year 12 Month 31 Day

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

No longer recruiting

Date of protocol fixation

2023 Year 11 Month 06 Day

Date of IRB

2023 Year 11 Month 06 Day

Anticipated trial start date

2023 Year 11 Month 07 Day

Last follow-up date

2025 Year 12 Month 30 Day

Date of closure to data entry

2026 Year 03 Month 01 Day

Date trial data considered complete

2026 Year 03 Month 01 Day

Date analysis concluded

2026 Year 03 Month 01 Day


Other

Other related information

Data analyses are on going.


Management information

Registered date

2025 Year 12 Month 31 Day

Last modified on

2025 Year 12 Month 31 Day



Link to view the page

Value
https://center6.umin.ac.jp/cgi-open-bin/ctr_e/ctr_view.cgi?recptno=R000068891