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临床试验/NCT07157787
NCT07157787招募中2 期

A Phase 2a, Randomized, Double-blind, Placebo-controlled, Parallel-Group, Multicenter Study to Evaluate the Efficacy, Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Immunogenicity of ALXN1920 in Adult Participants With PMN (Primary Membranous Nephropathy) Who Are at a High Risk for Disease Progression

Alexion Pharmaceuticals, Inc.41 个研究点 分布在 10 个国家目标入组 30 人开始时间: 2025年9月19日最近更新:
干预措施
相关药物

试验速览

阶段
2 期
状态
招募中
入组人数
30
试验地点
41
主要终点
Change From Baseline in Proteinuria Based on 24-hour UPCR at Week 26

研究概览

简要总结

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).

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Treatment
盲法
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

入排标准

年龄范围
18 Years 至 75 Years(Adult, Older Adult)
性别
All
接受健康志愿者

入选标准

  • 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)
  • Participants at high risk for disease progression, defined as:
  • 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.
  • Having two proteinuria measurements with each > 3.5 g/day, the second measurement showing ≤50% decrease from the first measurement.
  • eGFR60 mL/min/1.73 m2 during Screening calculated by CKD-EPI 2021 creatinine formula
  • All participants must receive prophylactic treatment with appropriate antibiotics while receiving Rituximab (RTX), and be willing to be vaccinated against Neisseria meningitidis

排除标准

  • 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
  • History of other solid organ (heart, lung, small bowel, pancreas, or liver) or bone marrow transplant; or planned transplant during the Treatment Period
  • History or presence of any clinically relevant co-morbidities
  • History of intolerance or hypersensitivity to ACEi or ARB
  • Initiation or dose adjustment of SGLT2i within 12 weeks prior to randomization or planned adjustment of GSLT2i dose throughout the treatment period.
  • Use of traditional Chinese medicines or Chinese proprietary medicines with systemic immunosuppressive properties within 6 months prior to screening.
  • Use of MRA, or ERA within 12 weeks prior to randomization and throughout the study period
  • Note: Additional inclusion/exclusion criteria may apply, per protocol.

研究组 & 干预措施

Placebo

Experimental

Participants will receive placebo subcutaneous (SC) and background treatment of ACE/ARB and Rituximab.

干预措施: Placebo (Drug)

ALXN1920

Experimental

Participants will receive ALXN1920 subcutaneous (SC) and background treatment of ACE/ARB and Rituximab.

干预措施: ALXN1920 (Drug)

结局指标

主要结局

Change From Baseline in Proteinuria Based on 24-hour UPCR at Week 26

时间窗: Baseline, Week 26

次要结局

  • Change From Baseline in Proteinuria Based on 24-hour UPCR at week 12(Baseline and week 12)
  • Change From Baseline in Proteinuria Based on Spot UPCR at Week 12 and week 26(Baseline, Week 12 and Week 26)
  • Change From Baseline in Serum Albumin at Week 12 and week 26(Baseline, week 12 and Week 26)
  • Change From Baseline in Anti-phospholipase A2 Receptor (anti-PLA2R) Antibody Level at Week 12 and week 26(Baseline, week 12 and week 26)
  • Change From Baseline in Peripheral CD19+ B Cell Count at Week 4, Week 8, Week 12 and Week 26(Baseline, Weeks 4, 8, 12 and 26)
  • Change From Baseline biomarker level at Week 12 and 26(Baseline and Weeks 12 and 26)
  • Change From Baseline in Proteinuria Based on 24-hour UPCR(Baseline)
  • Change From Baseline in Proteinuria Based on Spot UPCR at Week 26(Baseline and Week 26)
  • Change From Baseline in Serum Albumin at Week 26(Baseline and Week 26)
  • Change From Baseline in Anti-phospholipase A2 Receptor (anti-PLA2R) Antibody Level at Week 26(Baseline and 26)
  • Change From Baseline in Peripheral Cluster of Differentiation 20 (CD20+) B Cell Count at Week 4, Week 8, and Week 26(Baseline, Weeks 4, 8 and 26)
  • Change From Baseline biomarker level at Week 26(Baseline and Week 26)

研究者

申办方类型
Industry
责任方
Sponsor

研究点 (41)

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