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A Phase I Study of Autologous Dendritic Cell Vaccine Pulsed with Allogeneic Stem-like Cell Line Lysate in Patients with Newly Diagnosed or Recurrent Glioblastoma.
Clinical Cancer Research ( IF 11.5 ) Pub Date : 2022-02-15 , DOI: 10.1158/1078-0432.ccr-21-2867
Jethro L Hu 1, 2 , Oluwaseun A Omofoye 2 , Jeremy D Rudnick 1 , Sungjin Kim 1 , Mourad Tighiouart 1 , Surasak Phuphanich 1 , Hongqiang Wang 2 , Mia Mazer 2 , Toni Ganaway 2 , Ray M Chu 2 , Chirag G Patil 2 , Keith L Black 2 , Stephen L Shiao 3 , Rongfu Wang 4, 5 , John S Yu 2
Affiliation  

PURPOSE Glioblastoma (GBM) is a heterogeneous malignancy with multiple subpopulations of cancer cells present within any tumor. We present the results of a phase I clinical trial using an autologous dendritic cell (DC) vaccine pulsed with lysate derived from a GBM stem-like cell line. PATIENTS AND METHODS Patients with newly diagnosed and recurrent GBM were enrolled as separate cohorts. Eligibility criteria included a qualifying surgical resection or minimal tumor size, ≤ 4-mg dexamethasone daily dose, and Karnofsky score ≥70. Vaccine treatment consisted of two phases: an induction phase with vaccine given weekly for 4 weeks, and a maintenance phase with vaccines administered every 8 weeks until depletion of supply or disease progression. Patients with newly diagnosed GBM also received standard-of-care radiation and temozolomide. The primary objective for this open-label, single-institution trial was to assess the safety and tolerability of the autologous DC vaccine. RESULTS For the 11 patients with newly diagnosed GBM, median progression-free survival (PFS) was 8.75 months, and median overall survival was 20.36 months. For the 25 patients with recurrent GBM, median PFS was 3.23 months, 6-month PFS was 24%, and median survival was 11.97 months. A subset of patients developed a cytotoxic T-cell response as determined by an IFNγ ELISpot assay. CONCLUSIONS In this trial, treatment of newly diagnosed and recurrent GBM with autologous DC vaccine pulsed with lysate derived from an allogeneic stem-like cell line was safe and well tolerated. Clinical outcomes add to the body of evidence suggesting that immunotherapy plays a role in the treatment of GBM.

中文翻译:

在新诊断或复发性胶质母细胞瘤患者中用同种异体干细胞系裂解物脉冲自体树突细胞疫苗的 I 期研究。

目的 胶质母细胞瘤 (GBM) 是一种异质性恶性肿瘤,在任何肿瘤中都存在多个癌细胞亚群。我们展示了使用来自 GBM 干细胞样细胞系的裂解物脉冲的自体树突细胞 (DC) 疫苗的 I 期临床试验结果。患者和方法 新诊断和复发性 GBM 患者作为单独的队列入组。合格标准包括合格的手术切除或最小的肿瘤大小、≤ 4 mg 地塞米松每日剂量和 Karnofsky 评分≥70。疫苗治疗包括两个阶段:诱导阶段,每周接种一次,持续 4 周;维持阶段,每 8 周接种一次,直到供应耗尽或疾病进展。新诊断的 GBM 患者还接受了标准护理放射和替莫唑胺。这项开放标签、单机构试验的主要目的是评估自体 DC 疫苗的安全性和耐受性。结果 11例新诊断GBM患者的中位无进展生存期(PFS)为8.75个月,中位总生存期为20.36个月。25 例复发性 GBM 患者的中位 PFS 为 3.23 个月,6 个月 PFS 为 24%,中位生存期为 11.97 个月。通过 IFNγ ELISpot 分析确定,一部分患者产生了细胞毒性 T 细胞反应。结论 在该试验中,用同种异体干细胞样细胞系裂解物脉冲的自体 DC 疫苗治疗新诊断和复发性 GBM 是安全且耐受性良好的。临床结果增加了证据表明免疫疗法在 GBM 的治疗中发挥作用。单机构试验旨在评估自体 DC 疫苗的安全性和耐受性。结果 11例新诊断GBM患者的中位无进展生存期(PFS)为8.75个月,中位总生存期为20.36个月。25 例复发性 GBM 患者的中位 PFS 为 3.23 个月,6 个月 PFS 为 24%,中位生存期为 11.97 个月。通过 IFNγ ELISpot 分析确定,一部分患者产生了细胞毒性 T 细胞反应。结论 在该试验中,用同种异体干细胞样细胞系裂解物脉冲的自体 DC 疫苗治疗新诊断和复发性 GBM 是安全且耐受性良好的。临床结果增加了证据表明免疫疗法在 GBM 的治疗中发挥作用。单机构试验旨在评估自体 DC 疫苗的安全性和耐受性。结果 11例新诊断GBM患者的中位无进展生存期(PFS)为8.75个月,中位总生存期为20.36个月。25 例复发性 GBM 患者的中位 PFS 为 3.23 个月,6 个月 PFS 为 24%,中位生存期为 11.97 个月。通过 IFNγ ELISpot 分析确定,一部分患者产生了细胞毒性 T 细胞反应。结论 在该试验中,用同种异体干细胞样细胞系裂解物脉冲的自体 DC 疫苗治疗新诊断和复发性 GBM 是安全且耐受性良好的。临床结果增加了证据表明免疫疗法在 GBM 的治疗中发挥作用。
更新日期:2021-12-03
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