About this trial
A study to find how well atacicept works and how safe it is in participants with autoimmune kidney disease.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Weight of at least 40 kg
On a stable prescribed standard of care (SoC) treatment regimen according to local guidelines and the specific requirements for each disease
Systolic blood pressure ≤160 mmHg and diastolic blood pressure ≤90 mmHg at Screening.
Age ≥ 18 years
Disqualifiers
Evidence of rapidly progressive glomerulonephritis (loss of ≥50% of eGFR) within 12 weeks prior to and at Screening)
Active viral or bacterial infections
Existing conditions or clinically significant laboratory abnormalities that may interfere with participation in this study
Administration of live and live-attenuated vaccinations within 30 days prior to enrollment
Trial design
Single group
Treatments tested in this trial
Atacicept
DrugAtacicept 150 mg SC QW via pre-filled syringe
Treatment groups
Trial outcomes
Primary outcomes
AE profile and results of routine clinical and laboratory tests
Incidence of treatment-emergent adverse events (TEAEs), serious adverse events (SAEs), adverse events of special interest (AESIs), study drug discontinuation due to TEAEs
Percent reduction in urine protein to creatinine ratio (UPCR)
Changes in proteinuria based on UPCR from 24 hour urine samples at baseline versus week 36
Secondary outcomes
Changes from baseline estimated glomerular filtration rate (eGFR).
Changes from baseline in estimated glomerular filtration rate (eGFR).
Change in disease-specific antibodies
IgAN: Percent change from baseline galactose-deficient IgA1 (GdIgA1) levels at 36 and 52 weeks. pMN: Percent change from baseline in anti-PLA2R antibody levels at 4, 8, 12, 36, and 52 weeks. MCD/FSGS: Percent change from baseline anti-nephrin antibody levels at 4, 8, 12, 36, and 52 weeks (exploratory).
Sponsors and contacts
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