The primary objective of this study is to evaluate the efficacy of ALXN1920 compared with placebo in participants with PMN who are at a high risk for disease progression using 24-hour urine protein creatinine ratio (UPCR).
Participants who have a documented diagnosis of PMN, established by positive antiPLA2R antibody level (> 20 RU/mL) at Screening, which must be confirmed by a central laboratory
Participants are willing to receive the background Standard of Care (SoC)
Receiving ACE inhibitor or ARB for a minimum of 8 weeks prior to Screening, with the dose titrated to the maximally tolerated level. Participants with less than 8 weeks on ACE inhibitor or ARB before Screening or who have not yet reached maximally tolerated dose will enter the Run-in Period.
Participants who are on ACE inhibitor or ARB for a minimum of 8 weeks with Systolic Blood Pressure < 140 mmHg in ≥ 75% of the readings within last 8 weeks.
Documented rapid deterioration of kidney function
History of life-threatening Nephrotic Syndrome within 1 year before Screening
Diagnosis of anti- phospholipase A2 receptor (PLA2R) negative membranous nephropathy (MN) or anti-PLA2R positive MN but Screening serum anti-PLA2R < 20 RU/mL or kidney disease other than PMN
History of kidney transplant or planned kidney transplant or dialysis during the Treatment Period
Alexion Pharmaceuticals, Inc.
Lead sponsor
AstraZeneca
Collaborator