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一项评估XEMBIFY与Gamunex-C在慢性炎性脱髓鞘性多发性神经根神经病变参与者中的药代动力学和安全性的研究 (XPERT)

2026年11月9日 更新者：Grifols Therapeutics LLC

一项开放标签、多中心研究，旨在评估XEMBIFY与Gamunex-C在慢性炎性脱髓鞘性多发性神经根神经病参与者中的药代动力学和安全性

The main goal of the study is to find out whether XEMBIFY, given once a week under the skin, provides similar levels of immunoglobulin G in the blood over time as Gamunex-C, which is given into a vein once every 3 weeks in people with CIDP.

Participants with CIDP will first have up to 28 days of screening to make sure they can join the study. Those who qualify will then start a 19-week treatment period with Gamunex-C. During this period, they will receive Gamunex-C through a vein once every 3 weeks, for a total of 7 doses. Approximately, one week after their last Gamunex-C dose, they will begin a 16-week treatment period with XEMBIFY under the skin, once a week for a total of 16 doses. Blood samples will be collected during both treatment periods to measure IgG level in the blood.

研究概览

地位

招聘中

条件

干预/治疗

研究类型

介入性

注册 (估计的)

40

阶段

  • 第三阶段

联系人和位置

本节提供了进行研究的人员的详细联系信息，以及有关进行该研究的地点的信息。

学习联系方式

研究联系人备份

学习地点

  • 捷克语
      • Hradec Králové、捷克语、50002
  • 波兰
  • 罗马尼亚
      • Târgu Mureş、罗马尼亚、540140
  • 美国
    • California
      • Rancho Mirage、California、美国、92270
    • Florida
      • Coral Springs、Florida、美国、33155
      • Miami、Florida、美国、33067
        • 撤销
        • GC2402 Study Site 105
      • Port Charlotte、Florida、美国、33952
    • New York
      • New York、New York、美国、10003
    • North Carolina
      • Fayetteville、North Carolina、美国、28304
    • Tennessee
      • Cordova、Tennessee、美国、38018
    • Texas
      • Houston、Texas、美国、77074
      • Sherman、Texas、美国、75092

参与标准

研究人员寻找符合特定描述的人，称为资格标准。这些标准的一些例子是一个人的一般健康状况或先前的治疗。

资格标准

适合学习的年龄

18年 及以上 (成人、年长者)

接受健康志愿者

不

有资格学习的性别

全部

描述

Inclusion Criteria:

  • Have typical CIDP or a CIDP variant according to the 2021 criteria established by the European Academy of Neurology/Peripheral Nerve Society (EAN/PNS). The level of diagnostic certainty may be CIDP or possible CIDP.
  • Participants ≤ 90 kg in body weight and requiring an IGIV dose equivalent to 0.3-1.0 g/kg every three weeks (Q3W) inclusive and between 20-90 g of IGIV Q3W inclusive.
  • Clinically stable on IGIV, defined as no recent change in CIDP treatment or experienced a CIDP relapse requiring treatment, within 12 weeks prior to Screening and through baseline visit.

Exclusion Criteria:

  • Diagnosis of polyneuropathy of any other cause (including multifocal motor neuropathy; monoclonal gammopathy of uncertain significance with anti-myelin-associated glycoprotein IgM antibodies; hereditary demyelinating neuropathy; polyneuropathy, organomegaly, endocrinopathy, monoclonal protein and skin changes syndrome; lumbosacral radiculoplexus neuropathy; polyneuropathy associated with diabetes mellitus; polyneuropathy associated with systemic illnesses; or drug or toxin induced polyneuropathy).

  • Severe diseases and conditions that are likely to interfere with evaluation of the study product or satisfactory conduct of the study such as the following:

    1. current malignancy or history of allogeneic bone marrow/stem cell transplant,
    2. cardiac insufficiency (New York Heart Association classes III/IV), cardiomyopathy, significant cardiac arrhythmia requiring treatment, unstable or advanced ischemic heart disease, congestive heart failure or severe hypertension
    3. chronic kidney disease stage IV or V
    4. an acquired medical condition that is known to cause secondary immune deficiency, such as chronic lymphocytic leukemia, lymphoma, multiple myeloma, chronic or recurrent neutropenia (absolute neutrophil count less than 1000/µL [1.0 × 10^9/L]), or human immunodeficiency virus (HIV) infection/acquired immune deficiency syndrome
    5. known bleeding disorders
    6. severe skin disease at the planned injection sites
    7. alcohol, drug or medication abuse, or
    8. other disorders where IGSC therapy would be contraindicated during the study.

  • History of a thrombotic episode (including deep vein thrombosis, known hypercoagulable state, myocardial infarction, pulmonary embolism, or thromboembolic stroke)

  • Known allergic or other severe adverse reactions to blood products including intolerability to previous IVIG up to 1 g/kg Q3W, history of hemolysis after IVIG infusion, aseptic meningitis, recurrent severe headache, hypersensitivity, or severe generalized skin reaction

  • Has had a CIDP relapse requiring treatment modification within 12 weeks prior to Screening or between Screening and baseline visit

  • Treatment with any of the following:

    1. alemtuzumab or rituximab within 12 months of Screening.
    2. cyclophosphamide, interferon, tumor necrosis factor-alpha inhibitors, fingolimod, or fragment crystallizable receptor (FCRn) blockers, within six months of Screening
    3. plasma exchange or complement inhibitors within three months of Screening.
    4. changes to the following treatment within three months of Screening: methotrexate, azathioprine, or mycophenolate or any other immunosuppressants within six months of Screening
    5. participants on corticosteroids ≥ 20 mg/day prednisone equivalent. Participants on low dose corticosteroids (< 20 mg/day prednisone equivalent) may be enrolled if dose has been stable over the last three months prior to Screening and the dosage is not likely to be adjusted during the duration of the trial (inhaled or topical corticosteroids are allowed).

  • Participants requiring an IGIV dose equivalent to:

    1. greater than 1.0 g/kg every three weeks (Q3W) or
    2. less than 0.3 g/kg Q3W or
    3. greater than 90 g of IGIV Q3W or
    4. less than 20 g of IGIV Q3W.

  • Known IgA deficient patients with known antibodies against IgA

  • Known significant proteinuria (≥ 3+ or known urinary protein loss >1 g/24 hours or nephrotic syndrome), acute renal failure, are on dialysis, and/or have severe renal impairment on Screening laboratory testing (blood urea nitrogen [BUN] > 3 times the upper limit of normal [ULN] or creatinine more than 1.5 times ULN).

  • Screening values of aspartate aminotransferase (AST) or alanine aminotransferase (ALT) levels exceeding ≥ 2.5 times the ULN for the expected normal range for the testing laboratory.

  • Hemoglobin levels < 10 g/dL at Screening.

  • Current administration of anti-coagulation therapy which would make IGSC administration inadvisable per investigator judgement (i.e., vitamin K antagonists, nonvitamin K antagonist oral anticoagulants [e.g., dabigatran etexilate targeting Factor IIa, rivaroxaban, edoxaban, and apixaban targeting Factor Xa], and parenteral anticoagulants [e.g., fondaparinux]).

  • Known hyperviscosity syndrome.

  • Known HIV, chronic hepatitis B virus (HBV), or chronic hepatitis C virus (HCV) infection.

  • Participation in another clinical trial within 30 days or if known, 5 half-lives of the interventional product prior to Screening (observational studies without investigative treatments [non-interventional] are permitted).

学习计划

本节提供研究计划的详细信息，包括研究的设计方式和研究的衡量标准。

研究是如何设计的？

设计细节

  • 主要用途：治疗
  • 分配：非随机化
  • 介入模型：顺序分配
  • 屏蔽：无（打开标签）

武器和干预

参与者组/臂
干预/治疗
实验性的：Gamunex-C (IGIV-C 10%)

During the IV Phase, participants will receive Gamunex-C 1 g/kg, up to a maximum dose of 90 g, every 3 weeks for a total of seven doses. Gamunex-C may be administered over 1 day or divided into 2 consecutive daily doses of 0.5 g/kg each, except for dose #6, which will be administered as a single 1g/kg dose.
生物：Gamunex-C

Immune Globulin Injection (Human), 10% Caprylate/Chromatography Purified (IGIV-C 10%)
实验性的：Xembify (IGSC 20%)

Approximately 7 to 10 days after the last Gamunex-C dose, participants will enter a 16-week SC Phase, where they will receive XEMBIFY 0.456 g/kg once weekly for a total of 16 doses, up to a maximum dose of 41 g.
生物：Xembify

Immune Globulin Subcutaneous (Human), 20% Caprylate/Chromatography Purified (IGSC 20%)

研究衡量的是什么？

主要结果指标

结果测量
大体时间
IV期AUC：在3周静脉给药间隔（τ）内，CIDP参与者中总IgG的稳态浓度-时间曲线下面积（AUC）（即AUC（0-21天）
大体时间：IV期第1至19周
IV期第1至19周
SC阶段的AUC：在CIDP参与者中，每周SC给药间隔（τ）内总IgG的稳态AUC（即AUC（0-7天））
大体时间：SC阶段第1至16周
SC阶段第1至16周

次要结果测量

结果测量
大体时间
静脉注射Gamunex-C 10%每3周一次及皮下注射Xembify 20%每周一次后，总IgG的稳态平均谷浓度（给药前）
大体时间：第1天至研究访视结束（约35周）
第1天至研究访视结束（约35周）

合作者和调查者

在这里您可以找到参与这项研究的人员和组织。

赞助

Grifols Therapeutics LLC

研究记录日期

这些日期跟踪向 ClinicalTrials.gov 提交研究记录和摘要结果的进度。研究记录和报告的结果由国家医学图书馆 (NLM) 审查，以确保它们在发布到公共网站之前符合特定的质量控制标准。

研究主要日期

学习开始 (实际的)

2026年4月2日

初级完成 (估计的)

2027年12月31日

研究完成 (估计的)

2027年12月31日

研究注册日期

首次提交

2026年4月9日

首先提交符合 QC 标准的

2026年4月17日

首次发布 (实际的)

2026年4月20日

研究记录更新

最后更新发布 (实际的)

2026年11月10日

上次提交的符合 QC 标准的更新

2026年11月9日

最后验证

2026年11月1日

更多信息

与本研究相关的术语

关键字

其他相关的 MeSH 术语

其他研究编号

  • GC2402

计划个人参与者数据 (IPD)

计划共享个人参与者数据 (IPD)？

不

药物和器械信息、研究文件

研究美国 FDA 监管的药品

是的

研究美国 FDA 监管的设备产品

不

此信息直接从 clinicaltrials.gov 网站检索，没有任何更改。如果您有任何更改、删除或更新研究详细信息的请求，请联系 register@clinicaltrials.gov. clinicaltrials.gov 上实施更改，我们的网站上也会自动更新.

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