ArticleCancer2022
Association of high-dose radiotherapy with improved survival in patients with newly diagnosed low-grade gliomas.
Article in Cancer, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
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Who cites it
9 citing papers in PubMed, 18 citations in OpenAlex.
- Trial
- Application of preoperative advanced diffusion magnetic resonance imaging in evaluating the postoperative recurrence of lower grade gliomas.Cancer imaging : the official publication of the International Cancer Imaging Society · 2024Article
- Circ_0021350 plays an oncogene role by regulating miR-1207-3p/PIK3R3 in glioblastoma.BMC cancer · 2023Article
- Radiosurgery outcomes in infratentorial juvenile pilocytic astrocytomas.Journal of neuro-oncology · 2023Article
- Three-dimensional arterial spin labeling-guided dose painting radiotherapy for non-enhancing low-grade gliomas.Japanese journal of radiology · 2023Article
- Article
- A survival nomogram model constructed with common clinical characteristics to assist clinical decisions for diffuse low-grade gliomas: A population analysis based on SEER database.Frontiers in oncology · 2023Article
- Interfering withAnnals of translational medicine · 2022Article
- Radiotherapy delays malignant transformation and prolongs survival in patients with IDH-mutant gliomas.Cancer biology & medicine · 2022Article
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Authors and funding
9 authors at 2 institutions in 1 country.
Funding
Abstract
backgroundThe radiation dose for patients with low-grade gliomas (LGGs) is controversial. The objective of this study was to investigate the impact of the radiation dose on survival for patients with LGGs and especially for molecularly defined subgroups.
methodsThree hundred fifty-one patients with newly diagnosed LGGs from the multicenter Chinese Glioma Cooperative Group received postoperative radiotherapy (RT) in 2005-2018. The RT dose, as a continuous variable, was entered into a Cox regression model using penalized spline regression to allow for a nonlinear relationship between the RT dose and overall survival (OS) or progression-free survival (PFS). Inverse probability of treatment weighting (IPTW)-adjusted propensity scores were used to correct for potential confounders. Dose effects on survival within IDH mutation and 1p/19q codeletion defined subgroups were analyzed.
resultsThe risk of mortality and disease progression decreased sharply until 54 Gy. High-dose RT (≥54 Gy) was associated with significantly better 5-year OS (81.7% vs 64.0%; hazard ratio [HR], 0.33; P < .001) and PFS (77.4% vs 54.5%; HR, 0.46; P < .001) than low-dose RT (<54 Gy). IPTW correction confirmed the associations (HR for OS, 0.44; P = .001; HR for PFS, 0.48; P = .003). High-dose RT was associated with longer PFS (HR, 0.25; P = .002; HR, 0.21; P = .039) and OS (HR, 0.27; P = .006; HR, 0.07; P = .017) in IDH-mutant/1p/19q noncodeleted and IDH wild-type subgroups, respectively. No significant difference in survival was observed with high-dose RT in the IDH-mutant/1p/19q codeleted subgroup.
conclusionsHigh-dose RT (≥54 Gy) was effective in LGGs. Patients with an IDH mutation/1p/19q noncodeletion or IDH wild-type may need to be considered for high-dose RT. LAY SUMMARY: The radiotherapy dose-response was observed in patients with low-grade gliomas, and high-dose radiotherapy (≥54 Gy) was associated with improved survival. Patients with an IDH mutation/1p/19q noncodeletion or wild-type IDH may have improved survival with the administration of high-dose radiotherapy.
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