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This study looks at whether the drug BI 764198, compared with placebo, helps adults and adolescents with a kidney condition called focal segmental glomerulosclerosis (FSGS). People aged 12 and older with biopsy-confirmed primary FSGS or genetic FSGS caused by a gain-of-function mutation in the TRPC6 gene may take part. The study is in Phase 3 and is currently recruiting participants.
The summary above is a plain-language rendering of the official record. The original English title is shown for reference.
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Criteria are reproduced from the ClinicalTrials.gov record in the original English. Only the trial team can determine eligibility.
Inclusion criteria: 1. Male or female participants ≥12 years old on the day of signing informed consent/assent (Visit 1) 2. Weight of ≥40 kg at the screening visit (Visit 1) 3. Body mass index (BMI) of ≤40 kg/m² at the screening visit (Visit 1) 4. Participants with a diagnosis prior to the screening visit (Visit 1) of either: * Biopsy-confirmed primary focal segmental glomerulosclerosis (pFSGS) (based on Investigator's judgement) OR * Genetic focal segmental glomerulosclerosis (FSGS) resulting from a gain-of-function mutation in the transient receptor potential cation subfamily C member 6 (TRPC6) gene (based on historical genetic test) 5. Urine protein-creatinine ratio (UPCR) ≥1500 mg/g based on the mean of the spot urine sample and first morning void urine sample (both assessed by central laboratory) at the screening visit (Visit 1) 6. Estimated glomerular filtration rate (eGFR) * For adult participants (≥18 years): ≥25 mL/min/1.73 m² (chronic kidney disease epidemiology collaboration (CKD-EPI) formula based on combined serum creatinine plus cystatin C) at the screening visit (Visit 1) * For adolescent participants (12 to \<18 years); ≥25 mL/min/1.73 m² based on chronic kidney disease under 25 years (CKiD U25) formula using height and serum cystatin C at the screening visit (Visit 1) Further inclusion criteria apply. Exclusion criteria: 1. Known monogenic or syndromic causes of FSGS (with the exception of TRPC6 gain-of-function gene mutations) 2. Clinical or histologic evidence of secondary maladaptive or toxic forms of FSGS (based on Investigator's judgement) 3. FSGS of undetermined cause (FSGS-UC) with a diagnosis prior to the screening visit (Visit 1) (based on Investigator's judgement) 4. A history of organ transplantation or planned organ transplantation during the course of the trial 5. Use of intravenous immunosuppressive agents (e.g. cyclophosphamide, rituximab, obinutuzumab) in the last 6 months prior to screening (Visit 1) Further exclusion criteria apply.