ArticleCancer discovery2024
Combined Immunotherapy Improves Outcome for Replication-Repair-Deficient (RRD) High-Grade Glioma Failing Anti-PD-1 Monotherapy: A Report from the International RRD Consortium.
Article in Cancer discovery, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers, 1 of them a synthesis that pooled it.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
34 citing papers in PubMed, 1 synthesis or guideline pooled it, 42 citations in OpenAlex.
- ERN GENTURIS guidelines on constitutional mismatch repair deficiency diagnosis, genetic counselling, surveillance, quality of life, and clinical management.European journal of human genetics : EJHG · 2024Guideline
- Interdisciplinary management and genetic evaluation of pediatric cancer predisposition syndromes: a retrospective cohort study.European journal of human genetics : EJHG · 2026Article
- Cellular and Immunotherapy for Pediatric Brain Tumors: A Primer.Current oncology (Toronto, Ont.) · 2026Review
- Brain barriers at the crossroads of glioma immune surveillance and immunotherapy response.Nature reviews. Cancer · 2026Review
- The impact of international care networks on the clinical management of constitutional mismatch repair deficiency (CMMRD): a review of recent developments.Familial cancer · 2026Review
- Article
- RAS/MAPK inhibition in pediatric gliomas.Neuro-oncology advances · 2026Review
- Molecular and clinical characteristics of glioma patients with germline pathogenic mutations of Lynch syndrome genes: a large-scale multicenter study.Journal of translational medicine · 2026Article
- Immune checkpoint inhibitors in pediatric central nervous system tumors: biology, clinical experience, and translational pathways to precision immunotherapy.Journal of neuro-oncology · 2026Review
- High-grade gliomas and Lynch syndrome: A retrospective descriptive study with a literature review.Neuro-oncology practice · 2026Article
- Review
- Informing development of brain cancer therapies within "preclinical trials" using ex vivo patient tumors.Advanced drug delivery reviews · 2026Review
- cIMPACT-NOW update 11: Proposal on adaptation of diagnostic criteria for IDH- and H3-wildtype diffuse high-grade gliomas and for posterior fossa ependymal tumors.Brain pathology (Zurich, Switzerland) · 2026Article
- Patterns of hypermutation shape tumorigenesis and immunotherapy response in mismatch-repair-deficient glioma.Nature genetics · 2026Article
- Mismatch Repair as a Dynamic and Clinically Actionable Vulnerability in Cancer.Cancer research · 2025Review
- Unveiling MMR deficiency in pediatric and AYA high-grade gliomas: insights from multiomic profiling.Journal of neuro-oncology · 2025Article
- TPD52 promotes the proliferation and metastasis of gastric cancer cells.BMC gastroenterology · 2025Article
- Establishment and validation of a recurrent prediction model for glioma: extrinsic apoptotic molecules FADD and CASP8 are closely associated with glioma recurrence.BMC immunology · 2025Article
- The Spectrum of IDH- and H3-Wildtype High-Grade Glioma Subgroups Occurring across Teenage and Young Adult Patient Populations.Clinical cancer research : an official journal of the American Association for Cancer Research · 2025Article
- BRAF/MEK inhibition induces cell state transitions boosting immune checkpoint sensitivity in BRAFCell reports. Medicine · 2025Article
Corrections and comments
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Authors and funding
63 authors at 20 institutions in 15 countries.
Funding
Abstract
Immune checkpoint inhibition (ICI) is effective for replication-repair-deficient, high-grade gliomas (RRD-HGG). The clinical/biological impact of immune-directed approaches after failing ICI monotherapy is unknown. We performed an international study on 75 patients treated with anti-PD-1; 20 are progression free (median follow-up, 3.7 years). After second progression/recurrence (n = 55), continuing ICI-based salvage prolonged survival to 11.6 months (n = 38; P < 0.001), particularly for those with extreme mutation burden (P = 0.03). Delayed, sustained responses were observed, associated with changes in mutational spectra and the immune microenvironment. Response to reirradiation was explained by an absence of deleterious postradiation indel signatures (ID8). CTLA4 expression increased over time, and subsequent CTLA4 inhibition resulted in response/stable disease in 75%. RAS-MAPK-pathway inhibition led to the reinvigoration of peripheral immune and radiologic responses. Local (flare) and systemic immune adverse events were frequent (biallelic mismatch-repair deficiency > Lynch syndrome). We provide a mechanistic rationale for the sustained benefit in RRD-HGG from immune-directed/synergistic salvage therapies. Future approaches need to be tailored to patient and tumor biology. SIGNIFICANCE: Hypermutant RRD-HGG are susceptible to checkpoint inhibitors beyond initial progression, leading to improved survival when reirradiation and synergistic immune/targeted agents are added. This is driven by their unique biological and immune properties, which evolve over time. Future research should focus on combinatorial regimens that increase patient survival while limiting immune toxicity. This article is featured in Selected Articles from This Issue, p. 201.
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Registered trials
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