Skip to main content
Top
Published in:

Open Access 01-10-2024 | Bevacizumab | Research

Predicting recurrent glioblastoma clinical outcome to immune checkpoint inhibition and low-dose bevacizumab with tumor in situ fluid circulating tumor DNA analysis

Authors: Guangzhong Guo, Ziyue Zhang, Jiubing Zhang, Dayang Wang, Sensen Xu, Guanzheng Liu, Yushuai Gao, Jie Mei, Zhaoyue Yan, Ruijiao Zhao, Meiyun Wang, Tianxiao Li, Xingyao Bu

Published in: Cancer Immunology, Immunotherapy | Issue 10/2024

Login to get access

Abstract

Objective

Most recurrent glioblastoma (rGBM) patients do not benefit from immune checkpoint inhibition, emphasizing the necessity for response biomarkers. This study evaluates whether tumor in situ fluid (TISF) circulating tumor DNA (ctDNA) could serve as a biomarker for response to low-dose bevacizumab (Bev) plus anti-PD-1 therapy in rGBM patients, aiming to enhance systemic responses to immunotherapy.

Methods

In this phase II trial, 32 GBM patients with first recurrence after standard therapy were enrolled and then received tislelizumab plus low-dose Bev each cycle. TISF samples were analyzed for ctDNA using a 551-gene panel before each treatment.

Results

The median progression-free survival (mPFS) and overall survival (mOS) were 8.2 months (95% CI, 5.2–11.1) and 14.3 months (95% CI, 6.5–22.1), respectively. The 12-month OS was 43.8%, and the objective response rate was 56.3%. Patients with more than 20% reduction in the mutant allele fraction and tumor mutational burden after treatment were significantly associated with better prognosis compared to baseline TISF-ctDNA. Among detectable gene mutations, patients with MUC16 mutation, EGFR mutation & amplification, SRSF2 amplification, and H3F3B amplification were significantly associated with worse prognosis.

Conclusions

Low-dose Bev plus anti-PD-1 therapy significantly improves OS in rGBM patients, offering guiding significance for future individualized treatment strategies. TISF-ctDNA can monitor rGBM patients' response to combination therapy and guide treatment.

Clinical trial registration

This trial is registered with ClinicalTrials.gov, NCT05540275.
Literature
23.
go back to reference Youssef G, Rahman R, Bay C et al (2023) Evaluation of standard response assessment in neuro-oncology, modified response assessment in neuro-oncology, and immunotherapy response assessment in neuro-oncology in newly diagnosed and recurrent glioblastoma. J Clin Oncol 41(17):3160–3171. https://doi.org/10.1200/jco.22.01579CrossRefPubMed Youssef G, Rahman R, Bay C et al (2023) Evaluation of standard response assessment in neuro-oncology, modified response assessment in neuro-oncology, and immunotherapy response assessment in neuro-oncology in newly diagnosed and recurrent glioblastoma. J Clin Oncol 41(17):3160–3171. https://​doi.​org/​10.​1200/​jco.​22.​01579CrossRefPubMed
27.
go back to reference Fischer DC, Noack K, Runnebaum IB et al (2004) Expression of splicing factors in human ovarian cancer. Oncol Rep 11(5):1085–1090PubMed Fischer DC, Noack K, Runnebaum IB et al (2004) Expression of splicing factors in human ovarian cancer. Oncol Rep 11(5):1085–1090PubMed
Metadata
Title
Predicting recurrent glioblastoma clinical outcome to immune checkpoint inhibition and low-dose bevacizumab with tumor in situ fluid circulating tumor DNA analysis
Authors
Guangzhong Guo
Ziyue Zhang
Jiubing Zhang
Dayang Wang
Sensen Xu
Guanzheng Liu
Yushuai Gao
Jie Mei
Zhaoyue Yan
Ruijiao Zhao
Meiyun Wang
Tianxiao Li
Xingyao Bu
Publication date
01-10-2024
Publisher
Springer Berlin Heidelberg
Published in
Cancer Immunology, Immunotherapy / Issue 10/2024
Print ISSN: 0340-7004
Electronic ISSN: 1432-0851
DOI
https://doi.org/10.1007/s00262-024-03774-7

Other articles of this Issue 10/2024

Cancer Immunology, Immunotherapy 10/2024 Go to the issue

2024 ESMO Congress

Recent advances in the use of CAR T-cell therapies in relapsed/refractory diffuse large B-cell lymphoma and follicular lymphoma

  • Webinar | 01-10-2024 | 12:30 (CEST)

Live event concluded

In this webinar, Professor Martin Dreyling and an esteemed, international panel of CAR-T experts discuss the latest data on the safety, efficacy, and clinical impact of CAR T-cell therapies in the treatment of r/r DLBCL and r/r FL.

Please note, this webinar is not intended for healthcare professionals based in the US and UK.

Sponsored by: Novartis Pharma AG

Chaired by: Prof. Martin Dreyling
Developed by: Springer Healthcare
Get a reminder for the on-demand version