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A Phase IIb Study to Evaluate the Effect of Dapagliflozin in Combination With Baxdrostat Compared With Baxdrostat on Albuminuria in Participants With Chronic Kidney Disease and High Blood Pressure.
NCT07222917 · AstraZeneca
In plain English
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Official title
A Phase IIb, Randomised, Multicentre, Double-Blind Study to Evaluate the Effect of Baxdrostat in Combination With Dapagliflozin Compared With Baxdrostat on Albuminuria in Participants With Chronic Kidney Disease and High Blood Pressure.
About this study
This is a Phase IIb, randomised, multicentre, double-blind, parallel-group study aiming to determine the effect on albuminuria, as well as safety, of baxdrostat/dapagliflozin compared with baxdrostat/placebo, when given to participants with CKD and high blood pressure.
Study population will include participants ≥ 18 years old with CKD. Participants with or without a diagnosis of T2DM and with or without an SGLT2i treatment at screening are eligible for the study.
The study will include an optional pre-screening period, where participants will be assessed for at least one of the following parameters: eGFR, UACR, potassium, sodium, and BP. Participants who are being treated with SGLT2i at the time of the screening visit will complete a washout period After screening and initial confirmation of eligibility, participants will be randomised to receive either baxdrostat/dapagliflozin or baxdrostat/placebo. For randomisation there will be stratification and capping linked to T2DM status.
The primary objective is to assess the effect of baxdrostat/dapagliflozin compared with baxdrostat/matching placebo on albuminuria, which will be evaluated by change from baseline in UACR.
The end of the study is defined as the date of the last visit of the last participant in the study or last scheduled procedure shown in the SoA for the last participant in the study globally, whichever occurs last.
A participant is considered to have completed the study if they have completed all periods of the study including the last scheduled procedure shown in the SoA.
Eligibility criteria
Inclusion Criteria:
1. Participants of any sex and gender must be ≥ 18 years of age at the time of signing the informed consent.
2. Participants with eGFR ≥ 30 and \< 90 mL/min/1.73 m2 at screening
3. Participants with UACR \> 200 mg/g (22.6 mg/mmol) and \< 5000 mg/g (565 mg/mmol) at screening
4. Participants with history of HTN and a SBP ≥ 130 mmHg at screening and ≥ 120 mmHg at the randomisation visit.
5. Stable and maximum daily tolerated dose of either an ACE inhibitor or an ARB (not both) for at least 4 weeks prior to the screening visit, if not medically contraindicated.
6. Participants with:
1. Serum or plasma potassium ≥ 3.0 and ≤ 4.8 mmol/L if eGFR ≥ 45 mL/min/1.73 m2.
2. Serum or plasma potassium ≥ 3.0 and ≤ 4.5 mmol/L if eGFR \< 45 mL/min/1.73 m2.
7. Contraceptive use should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies. Applicable to female participants.
Exclusion Criteria:
1. Systolic blood pressure \> 180 mmHg, or diastolic blood pressure \> 110 mmHg at screening.
2. Known hyperkalaemia, defined as potassium of ≥ 5.5 mmol/L within 3 months before screening
3. Serum sodium \< 135 mmol/L at the Screening Visit (values obtained within 4 weeks prior to screening or at the Screening Visit).
4. Diabetes mellitus:
1. T1DM at the screening visit
2. Uncontrolled T2DM at screening: HbA1C \> 10.5% (\> 91 mmol/mol)
5. New York Heart Association functional HF class IV at screening
6. Any use of mineralocorticoid receptor antagonists (such as spironolactone, eplerenone, or finerenone), aldosterone synthase inhibitors, potassium-sparing diuretics (such as triamterene or amiloride), or potassium binders (such as sodium zirconium cyclosilicate, patiromer, or sodium polystyrene sulfonate) within 4 weeks prior to screening
7. Stroke, transient ischaemic cerebral attack, valve implantation or valve replacement, carotid surgery, or carotid angioplasty, acute coronary syndrome, or hospitalisation for worsening HF within previous 3 months prior to randomisation.
8. Known severe hepatic impairment, defined as Child-Pugh Class C, based on records that confirm documented medical history.
9. Documented history of adrenal insufficiency.
10. Any dialysis (including for acute kidney injury) within 3 months prior to the screening
11. Any acute kidney injury within 3 months prior to the screening visit.
12. Prohibited concomitant medications
Study design
Enrollment target: 218 participants
Allocation: randomized
Masking: quadruple
Age groups: adult, older_adult
Timeline
Starts: 2025-12-05
Estimated completion: 2027-05-24
Last updated: 2026-04-03
Interventions
Drug: Baxdrostat/dapagliflozinDrug: Baxdrostat/Placebo
Primary outcomes
- • To determine whether baxdrostat/dapagliflozin is superior to baxdrostat/matching placebo at reducing albuminuria. (Up to 12 weeks)
Sponsor
AstraZeneca · industry
Contacts & investigators
ContactAstraZeneca Clinical Study Information Center · contact · information.center@astrazeneca.com · 1-877-240-9479
All locations (71)
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Surprise, Arizona, United States
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Hollywood, Florida, United States
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Port Charlotte, Florida, United States
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Port Orange, Florida, United States
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Atlanta, Georgia, United States
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Champaign, Illinois, United States
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Wichita, Kansas, United States
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Eatontown, New Jersey, United States
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Greenville, North Carolina, United States
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Jacksonville, North Carolina, United States
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New Bern, North Carolina, United States
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Columbus, Ohio, United States
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Media, Pennsylvania, United States
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East Providence, Rhode Island, United States
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Arlington, Texas, United States
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Pasadena, Texas, United States
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San Antonio, Texas, United States
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Woodbridge, Virginia, United States
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Buenos Aires, Argentina
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Ciudad de Buenos Aires, Argentina
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Mar del Plata, Argentina
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Rosario, Argentina
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San Nicolás, Argentina
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Pernik, Bulgaria
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Plovdiv, Bulgaria
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Sofia, Bulgaria
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Sofia, Bulgaria
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Sofia, Bulgaria
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Sofia, Bulgaria
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Yambol, Bulgaria
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Courtice, Ontario, Canada
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Etobicoke, Ontario, Canada
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Stouffville, Ontario, Canada
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Waterloo, Ontario, Canada
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Montreal, Quebec, Canada
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Anyang-si, South Korea
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Cheonan-si, South Korea
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Goyang-si, South Korea
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Seoul, South Korea
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Badalona, Spain
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Pamplona, Spain
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Valencia, Spain
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Kaohsiung City, Taiwan
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Kaohsiung City, Taiwan
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New Taipei City, Taiwan
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Taichung, Taiwan
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Taichung, Taiwan
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Taipei, Taiwan
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Taipei, Taiwan
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Taoyuan District, Taiwan
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Bangkoknoi, Thailand
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Changwat Sara Buri, Thailand
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Hat Yai, Thailand
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Muang, Thailand
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Ratchathewi, Thailand
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Adana, Turkey (Türkiye)
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Adapazarı, Turkey (Türkiye)
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Kahramanmaraş, Turkey (Türkiye)
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Kayseri, Turkey (Türkiye)
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Kocaeli, Turkey (Türkiye)
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Kyiv, Ukraine
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Kyiv, Ukraine
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Kyiv, Ukraine
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Kyiv, Ukraine
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Kyiv, Ukraine
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Kyiv, Ukraine
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Uzhhorod, Ukraine
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Vinnytsia, Ukraine
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Dundee, United Kingdom
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Liverpool, United Kingdom
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London, United Kingdom