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Efficacy, Safety and Tolerability of Balcinrenone/Dapagliflozin Compared to Dapagliflozin in Adults With Chronic Kidney Disease

A Phase IIb, Multicenter, Randomised, Double-Blind, Dose-finding Study to Evaluate the Efficacy, Safety and Tolerability of Balcinrenone in Combination With Dapagliflozin Compared With Dapagliflozin in Patients With Chronic Kidney Disease and Albuminuria

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06350123
Acronym
MIRO-CKD
Enrollment
324
Registered
2024-04-05
Start date
2024-05-01
Completion date
2025-05-09
Last updated
2026-06-26

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Chronic Kidney Disease

Brief summary

The purpose of the study is to evaluate the efficacy, safety and tolerability of balcinrenone/dapagliflozin compared with dapagliflozin alone on patients with chronic kidney disease (CKD) and albuminuria. This study will evaluate the effect of the balcinrenone/dapagliflozin on urinary albumin-to-creatinine ratio (UACR), compared with dapagliflozin in patients with CKD. This is a dose-finding study aiming to identify an optimal dose of balcinrenone/dapagliflozin for a future Phase III study in patients with CKD.

Detailed description

This is a Phase IIb, multicentre, randomised, double-blind, dose-finding, parallel group, double-dummy study aiming to determine the effect on albuminuria, as well as safety and tolerability, of balcinrenone/dapagliflozin compared with dapagliflozin, when given once daily on top of other Standard of Care (SoC) to patients with CKD and albuminuria. Study population will include participants with CKD (eGFR ≥ 25 to \< 60 mL/min/1.73 m2) and UACR \> 100 mg/g to ≤ 5000 mg/g. Participants with or without a diagnosis of T2DM and with or without an SGLT2 inhibitor treatment at screening are eligible for the study. The study will be conducted at approximately 110 sites in approximately 16 countries globally. At least 300 participants will be randomised in order to have 300 evaluable participants. Participants will be randomised to one of 3 treatment arms in a 1:1:1 ratio: * Balcinrenone/dapagliflozin 15 mg/10 mg * Balcinrenone/dapagliflozin 40 mg/10 mg * Dapagliflozin 10 mg For each participant, the total duration of participation will be approximately 23 weeks: an up to 3-week screening period followed by a 12-week treatment period, and an 8-week follow-up period after end of investigational medicinal product (IMP) treatment.

Interventions

1 capsule of balcinrenone/dapagliflozin 15 mg/10 mg and 1 tablet of matching placebo for dapagliflozin 10 mg once daily, oral use

1 capsule of balcinrenone/dapagliflozin 40 mg/10 mg and 1 tablet of matching placebo for dapagliflozin 10 mg once daily, oral use

DRUGDapagliflozin 10 mg and matching placebo for balcinrenone/dapa gliflozin

1 tablet of dapagliflozin 10 mg and 1 capsule of matching placebo for balcinrenone/dapagliflozin once daily, oral use

Sponsors

AstraZeneca
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Intervention model description

Multicentre, randomised, double-blind, dose-finding, parallel group, double-dummy

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

- Age ≥ 18 years old - Diagnosis of CKD and eGFR ≥ 25 to \< 60 mL/min/1.73 m2. - UACR \> 100 mg/g (10 mg/mmol) to ≤ 5000 mg/g (500 mg/mmol). - Serum potassium ≥ 3.5 mmol/L to ≤ 5.0 mmol/L. - Stable RAAS inhibitors treatment for 4 weeks before screening. Participants who cannot tolerate or are not treated with RAAS inhibitors can also participate in the study.

Exclusion criteria

- Uncontrolled arterial hypertension (SBP \> 160 mmHg or DBP \> 100 mmHg). - Hypotension defined as SBP \< 100 mmHg. - Autosomal dominant polycystic kidney disease, lupus nephritis or ANCA-associated vasculitis or other nephropathies that are unstable or progress rapidly. - Cytotoxic or immunomodulatory therapy within 6 months prior to screening, or current, or planned within 6 months following randomization. - History of solid organ or bone marrow transplantation - Recent (90 d prior to screening) or ongoing dialysis, or likely need for dialysis within 3 months following randomization. - Myocardial infarction, acute coronary syndrome, stroke or transient ischaemic attack within the previous 12 weeks. - Type 1 diabetes mellitus (DM) or uncontrolled type 2 DM. - Hepatic disease, including active hepatitis, and/or hepatic impairment (Child-Pugh class B-C; or any of AST or ALT \> 3 × ULN; or TBL \> 2 × ULN. - Serum HCO3 \< 18 mmol/L at screening. - Adrenal insufficiency (eg, Addison's disease, prolonged use of glucocorticoids). - Any use of the following within 4 weeks prior to screening: - MRA (or planned initiation of MRA treatment), potassium sparing diuretic, potassium binders, fludrocortisone. - Strong or moderate CYP3A4 inducers or inhibitors prohibited at least 1 week prior to randomisation and during treatment.

Design outcomes

Primary

MeasureTime frameDescription
Relative Change in Urine Albumin-to-Creatinine Ratio (UACR) From Baseline to Week 12Baseline (Day 1) until Week 12 (Day 85)Evaluating the effect of balcinrenone/dapagliflozin compared with dapagliflozin alone on Urine Albumin-to-Creatinine Ratio (UACR).

Countries

Austria, Brazil, Bulgaria, Canada, China, Italy, Japan, Malaysia, Poland, Spain, Taiwan, Turkey (Türkiye), United Kingdom, United States, Vietnam

Participant flow

Recruitment details

This study was conducted from 01 May 2024 to 09 May 2025. Recruitment period was from 01 May 2024 to 16 December 2024 when last subject was randomized.

Pre-assignment details

Participants who met all the eligibility criteria were enrolled in the study. All study assessments were performed as per the schedule of assessment.

Baseline characteristics

Characteristic
Age, Continuous64.6 Years
STANDARD_DEVIATION 12.4
Race (NIH/OMB)
American Indian or Alaska Native
1 Participants
Race (NIH/OMB)
Asian
29 Participants
Race (NIH/OMB)
Black or African American
5 Participants
Race (NIH/OMB)
More than one race
1 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
2 Participants
Race (NIH/OMB)
White
183 Participants
Sex: Female, Male
Female
37 Participants
Sex: Female, Male
Male
72 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
0 / 1080 / 1100 / 106
other
Total, other adverse events
9 / 10810 / 11011 / 106
serious
Total, serious adverse events
1 / 1088 / 1108 / 106

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Jun 27, 2026