A Study to Test the Effect of Different Doses of BI 685509 on Kidney Function in People With Diabetic Kidney Disease

  • STATUS
    Recruiting
  • End date
    Aug 16, 2022
  • participants needed
    240
  • sponsor
    Boehringer Ingelheim
Updated on 16 September 2021
diabetes
type 2 diabetes mellitus
glycated hemoglobin
glomerular filtration rate
angiotensin
glucagon
hemoglobin a1c
antihypertensive drugs
angiotensin converting enzyme
albumin/creatinine ratio
glucagon-like peptide 1
microalbumin/creatinine ratio

Summary

This study is open to adults with diabetic kidney disease. The purpose of the study is to find out whether a medicine called BI 685509 improves kidney function. Three different doses of BI 685509 are tested in this study.

Participants get either one of the three doses of BI 685509 or placebo. It is decided by chance who gets which BI 685509 dose and who gets placebo. Participants take BI 685509 or placebo as tablets 3 times a day. Placebo tablets look like BI 685509 tablets but do not contain any medicine. Participants continue taking their usual medicine for diabetes and kidney disease throughout the study.

Participants are in the study for about 7 months. During this time, they visit the study site about 11 times. Where possible, about 6 of the 11 visits can be done at the participant's home instead of the study site. The trial staff may also contact the participants by phone or video call.

Kidney function is assessed based on the analysis of urine samples, which participants collect at home. At the end of the trial the results are compared between the different doses of BI 685509 and placebo. During the study, the doctors also regularly check the general health of the participants.

Details
Condition Diabetic Nephropathy, Nephropathy, Kidney Disease (Pediatric), Kidney Disease, Diabetic Kidney Disease
Treatment Placebo, BI 685509
Clinical Study IdentifierNCT04750577
SponsorBoehringer Ingelheim
Last Modified on16 September 2021

Eligibility

Yes No Not Sure

Inclusion Criteria

Signed and dated written informed consent in accordance with International Council of Harmonisation-Good Clinical Practice (ICH-GCP) and local legislation prior to admission to the trial
Male or female patients aged 18 years at time of consent
eGFR (Chronic Kidney Disease Epidemiology Collaboration [CKD-EPI] formula) 20 and < 90 mL/min/1.73 m2 at Visit 1 by central laboratory analysis. eGFR must remain 20 mL/min/1.73 m2 after Visit 1 up to the start of Visit 3, measured by central or any local laboratory analysis
Urine Albumin Creatinine Ratio (UACR) 200 and < 3,500 mg/g in spot urine (midstream urine sample) by central laboratory analysis at Visit 1
Treatment with the highest tolerated dose of either Angiotensin Converting Enzyme inhibitor (ACEi) or Angiotensin Receptor Blocker (ARB) (but not both together), and stable dose for 4 weeks before Visit 1 with no planned change of the therapy during the trial
If the patient is taking any of the following medications they should be on a stable dose at least 4 weeks prior to visit 1 until start of treatment, with no planned change of the therapy during the trial: anti-hypertensives, Non-steroidal anti-inflammatory drug(s) (NSAIDs), endothelin receptor antagonists, systemic steroids or Sodium-Glucose co-Transporter-2 (SGLT2) inhibitors
Patients with stable type 1 or type 2 diabetes mellitus, diagnosed before informed consent. Treatment (including SGLT2 inhibitor and/or Glucagon-Like Peptide 1 (GLP1) receptor agonist) should have been unchanged or changes deemed minor (according to investigator's judgement) within 4 weeks before Visit 1 and until start of trial treatment
Glycated Haemoglobin (HbA1c) < 10.0% at Visit 1 measured by the central laboratory
Furhter inclusion criteria apply

Exclusion Criteria

Treatment with Renin Angiotensin Aldosterone System (RAAS) interventions (apart from either ACEi or ARB), phosphodiesterase inhibitors, nitrates, sGC-stimulators/activators (other than trial treatment) or any other restricted medication (including Organic Anion-Transporting Polypeptide 1B1 and 1B3 (OATP1B1/3) inhibitors, Uridine 5'-diphosphate -glucuronosyltransferase (UGT) inhibitors/inducers) as provided in the Investigator Site File (ISF) within 4 weeks prior to visit 1 and throughout screening and baseline run-in. Patients who must or wish to continue the intake of restricted medications or any drug considered likely to interfere with the safe conduct of the trial are also excluded
Any clinically relevant laboratory value from screening until start of trial treatment, which in the investigator's judgement puts the patient at additional risk
Biopsy or otherwise confirmed non-diabetic chronic kidney disease, or non-diabetic chronic kidney disease in the opinion of investigator, e.g., Autosomal Dominant Polycystic Kidney Disease (ADPKD), uncontrolled lupus nephritis. The presence of a hypertensive etiology does not need to be excluded unless it is evident this is the only cause for the Chronic Kidney Disease (CKD)
Any immunosuppression therapy or immunotherapy in the last 3 months prior to visit 1 and throughout screening and baseline run-in (except prednisolone 10 mg or equivalent)
Acute kidney injury (AKI) according to the Kidney Disease: Improving Global Outcomes (KDIGO) in the 30 days prior to Visit 1 until the start of trial treatment
Planned start of chronic renal replacement therapy during the trial or end stage renal disease before start of trial treatment
Known history of moderate or severe symptomatic orthostatic dysregulation as judged by the investigator before start of trial treatment
The patient has an active infection with Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2) (or is known to have a positive test) from screening until randomisation
Further exclusion criteria apply
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If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

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