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临床试验/NCT04650451
NCT04650451暂停1 期

A Phase 1/2, Open-Label, Multicenter, Non-Randomized, Safety and Activity Study of HER2-Targeted Dual Switch CAR-T Cells (BPX-603) In Subjects With Previously Treated Advanced HER2-Positive Solid Tumors

Bellicum Pharmaceuticals14 个研究点 分布在 1 个国家目标入组 220 人开始时间: 2020年12月7日最近更新:
适应症

试验速览

阶段
1 期
状态
暂停
发起方
入组人数
220
试验地点
14
主要终点
Maximum tolerated dose (MTD) and/or recommended dose for expansion (RDE)

研究概览

简要总结

This is a Phase 1/2, open-label, multicenter, non-randomized study to investigate the safety, tolerability, and clinical activity of HER2-specific dual-switch CAR-T cells, BPX-603, administered with rimiducid to subjects with previously treated, locally advanced or metastatic solid tumors which are HER2 amplified/overexpressed.

详细描述

  • Phase 1: Cell dose escalation to identify the maximum dose of BPX-603 administered without or with rimiducid. The first subject in each dose cohort will receive BPX-603 alone (without rimiducid) in order to assess safety of the CAR-T monotherapy.
  • Phase 2: Indication-specific dose expansion to assess the safety, pharmacodynamics (including BPX-603 persistence and response to temsirolimus as applicable), and clinical activity at the recommended dose for expansion (RDE) identified in Phase 1 in various HER2+ solid tumors.
  • During Phase 1 or 2, temsirolimus (single IV dose at 25 mg) may be administered following BPX-603 infusion in response to treatment-emergent toxicity in order to activate the iRC9 safety switch.

研究设计

研究类型
Interventional
分配方式
Na
干预模型
Single Group
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

  • Documented evidence of HER2 amplification/overexpression by local testing.
  • Histologically or cytologically confirmed diagnosis of a locally advanced unresectable or metastatic HER2+ solid tumor malignancy for which standard treatment is no longer effective, does not exist, or subject is ineligible.
  • Subjects with a solid tumor malignancy for which HER2-targeted therapy is approved as a standard treatment (e.g., breast, gastric cancers) must have received prior treatment with approved HER2-directed therapy.
  • Measurable disease (at least one target lesion) per RECIST v1.
  • Life expectancy > 12 weeks.
  • Adequate organ function.

排除标准

  • Symptomatic, untreated, or actively progressing central nervous system metastases.
  • Prior CAR T cell or other genetically-modified T cell therapy.
  • Impaired cardiac function or clinically significant cardiac disease.
  • Symptomatic intrinsic lung disease or those with extensive tumor involvement of the lungs.
  • Severe intercurrent infection.
  • Pregnant or breastfeeding.
  • Known HIV positivity.

结局指标

主要结局

Maximum tolerated dose (MTD) and/or recommended dose for expansion (RDE)

时间窗: through Phase 1 completion, up to 2 years

Identify the optimal dose of BPX-603 for Phase 2.

Proportion of subjects experiencing Dose Limiting Toxicities at increasing doses of BPX-603

时间窗: 35 days from time of BPX-603 infusion

Dose limiting toxicities are defined as BPX-603-related adverse events.

次要结局

  • Persistence of HER2-CAR T cells (cell counts)(measured over time from baseline through study completion, up to 5 years)
  • Expansion of HER2-CAR T cells (vector copy number)(measured over time from baseline through study completion, up to 5 years)
  • Antitumor activity of BPX-603(through study completion, up to 5 years)

研究者

发起方
Bellicum Pharmaceuticals
申办方类型
Industry
责任方
Sponsor

研究点 (14)

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