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临床试验/NCT07832370
NCT07832370尚未招募1 期

Phase 1/2 Open-Label Trial With Extended Follow-Up to Evaluate the Safety, Tolerability, Pharmacokinetics, Pharmacodynamics, and Efficacy of Multiple Doses of ALN-6457 in Participants With Symptomatic Prion Disease

Regeneron Pharmaceuticals0 个研究点目标入组 60 人开始时间: 2026年10月23日最近更新:
适应症
干预措施
相关药物

试验速览

阶段
1 期
状态
尚未招募
入组人数
60
主要终点
Percentage change in concentration of Neurofilament Light chain (NfL) in plasma from baseline

研究概览

简要总结

This study will test a Regeneron drug called ALN-6457 ("study drug") to see if it can help treat Prion Disease (PrD).

In PrD, the prion protein folds into an abnormal shape. These abnormal proteins build up in the brain and cause damage to brain cells, leading to problems with thinking, memory, and movement.

ALN-6457 is designed to reduce the amount of prion protein made in the brain. ALN-6457 works by targeting the genetic "instructions" that cells use to produce this protein, with the goal of slowing or stopping disease progression.

This study is looking at:

  • What side effects ALN-6457 might cause
  • How well ALN-6457 works
  • What is the best dose of ALN-6457 for treating prion disease
  • How much ALN-6457 is in the blood and Cerebrospinal Fluid (CSF, fluid that surrounds the brain and spinal cord) at different times

研究设计

研究类型
Interventional
分配方式
Non Randomized
干预模型
Sequential
主要目的
Treatment
盲法
None

入排标准

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

入选标准

  • Participant must meet all of the criteria under either:
  • sporadic CJD as described in the protocol or
  • genetic PrD, as described in the protocol
  • Has a Body Mass Index (BMI) <35 kg/m2 (inclusive) at the screening visit
  • Able to understand and complete trial-related questionnaires at screening

排除标准

  • Clinically significant cardiovascular, respiratory, hepatic, renal, gastrointestinal, endocrine, hematological, psychiatric or neurological disease (excluding prion disease) that, as assessed by the investigator, may confound the results of the trial or pose an additional risk to the participant during trial participation
  • Medical history of brain or spinal disease/injury that would interfere with the Lumbar Puncture (LP) procedure or CSF circulation, as described in the protocol
  • Any contraindications to undergo a brain Magnetic Resonance Imaging (MRI)
  • An established allergy or intolerance to local anesthetics
  • Current history of bleeding diatheses that would increase risk of bleeding upon LP
  • Any malignancy that is progressing or requires active treatment, as described in the protocol
  • Attempted suicide, suicidal ideation with a plan that required hospital admission and/or change in level of care within 12 months prior to screening
  • NOTE: Other Protocol-Defined Inclusion/Exclusion Criteria Apply.

研究组 & 干预措施

Dose Escalation

Experimental

干预措施: ALN-6457 (Drug)

Cohort Expansion

Experimental

干预措施: ALN-6457 (Drug)

结局指标

主要结局

Percentage change in concentration of Neurofilament Light chain (NfL) in plasma from baseline

时间窗: Through Week 130

Occurrence of Treatment Emergent Adverse Events (TEAEs)

时间窗: Through Week 156

Severity of TEAEs

时间窗: Through Week 156

次要结局

  • Concentration of Prion Protein (PrP) in CSF(Through Week 130)
  • Change from baseline in concentration of PrP in CSF(Through Week 130)
  • Concentration of ALN-6457 and its major metabolites in plasma(Through Week 130)
  • Concentration of ALN-6457 and its major metabolites in CSF(Through Week 130)
  • Overall survival rate(At Week 52)

研究者

申办方类型
Industry
责任方
Sponsor

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