1
|
Dono A, Zhu P, Holmes E, Takayasu T, Zhu JJ, Blanco AI, Hsu S, Bhattacharjee MB, Ballester LY, Kim DH, Esquenazi Y, Tandon N. Impacts of genotypic variants on survival following reoperation for recurrent glioblastoma. J Neurooncol 2022; 156:353-363. [PMID: 34997451 PMCID: PMC9338692 DOI: 10.1007/s11060-021-03917-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 11/29/2021] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Recurrent glioblastoma (rGBM) prognosis is dismal. In the absence of effective adjuvant treatments for rGBM, re-resections remain prominent in our arsenal. This study evaluates the impact of reoperation on post-progression survival (PPS) considering rGBM genetic makeup. METHODS To assess the genetic heterogeneity and treatment-related changes (TRC) roles in re-operated or medically managed rGBMs, we compiled demographic, clinical, histopathological, and next-generation genetic sequencing (NGS) characteristics of these tumors from 01/2005 to 10/2019. Survival data and reoperation were analyzed using conventional and random survival forest analysis (RSF). RESULTS Patients harboring CDKN2A/B loss (p = 0.017) and KDR mutations (p = 0.031) had notably shorter survival. Reoperation or bevacizumab were associated with longer PPS (11.2 vs. 7.4-months, p = 0.006; 13.1 vs 6.2, p < 0.001). Reoperated patients were younger, had better performance status and greater initial resection. In 136/273 (49%) rGBMs undergoing re-operation, CDKN2A/B loss (p = 0.03) and KDR mutations (p = 0.02) were associated with shorter survival. In IDH-WT rGBMs with NGS data (n = 166), reoperation resulted in 7.0-month longer survival (p = 0.004) than those managed medically. This reoperation benefit was independently identified by RSF analysis. Stratification analysis revealed that EGFR-mutant, CDKN2A/B-mutant, NF1-WT, and TP53-WT rGBM IDH-WT subgroups benefit most from reoperation (p = 0.03). Lastly, whether or not TRC was prominent at re-operation does not have any significant impact on PPS (10.5 vs. 11.5-months, p = 0.77). CONCLUSIONS Maximal safe re-resection significantly lengthens PPS regardless of genetic makeup, but reoperations are especially beneficial for IDH-WT rGBMs with EGFR and CDKN2A/B mutations with TP53-WT, and NF1-WT. Histopathology at recurrence may be an imperfect gauge of disease severity at progression and the imaging progression may be more reflective of the prognosis.
Collapse
Affiliation(s)
- Antonio Dono
- Vivian L. Smith Department of Neurosurgery, McGovern Medical School at UT Health, Houston, TX, USA,Department of Pathology and Laboratory Medicine, McGovern Medical School at UT Health, Houston, TX, USA
| | - Ping Zhu
- Vivian L. Smith Department of Neurosurgery, McGovern Medical School at UT Health, Houston, TX, USA
| | - Emma Holmes
- Vivian L. Smith Department of Neurosurgery, McGovern Medical School at UT Health, Houston, TX, USA
| | - Takeshi Takayasu
- Department of Pathology and Laboratory Medicine, McGovern Medical School at UT Health, Houston, TX, USA
| | - Jay-jiguang Zhu
- Vivian L. Smith Department of Neurosurgery, McGovern Medical School at UT Health, Houston, TX, USA,Memorial Hermann Hospital-TMC, Houston, TX, USA
| | - Angel I. Blanco
- Vivian L. Smith Department of Neurosurgery, McGovern Medical School at UT Health, Houston, TX, USA,Memorial Hermann Hospital-TMC, Houston, TX, USA
| | - Sigmund Hsu
- Vivian L. Smith Department of Neurosurgery, McGovern Medical School at UT Health, Houston, TX, USA,Memorial Hermann Hospital-TMC, Houston, TX, USA
| | - Meenakshi B. Bhattacharjee
- Department of Pathology and Laboratory Medicine, McGovern Medical School at UT Health, Houston, TX, USA,Memorial Hermann Hospital-TMC, Houston, TX, USA
| | - Leomar Y. Ballester
- Department of Pathology and Laboratory Medicine, McGovern Medical School at UT Health, Houston, TX, USA,Memorial Hermann Hospital-TMC, Houston, TX, USA
| | - Dong H. Kim
- Vivian L. Smith Department of Neurosurgery, McGovern Medical School at UT Health, Houston, TX, USA,Memorial Hermann Hospital-TMC, Houston, TX, USA
| | - Yoshua Esquenazi
- Vivian L. Smith Department of Neurosurgery, McGovern Medical School at UT Health, Houston, TX, USA,Memorial Hermann Hospital-TMC, Houston, TX, USA
| | - Nitin Tandon
- Vivian L. Smith Department of Neurosurgery, McGovern Medical School at UT Health, Houston, TX, USA,Memorial Hermann Hospital-TMC, Houston, TX, USA,Texas Institute for Restorative Neurotechnologies, UT Health, Houston, TX, USA,Department of Neurosurgery, Texas Institute of Restorative Neurotechnology, McGovern Medical School at UT Health, 6400 Fannin Street, Suite 2800, Houston, TX 77030, USA
| |
Collapse
|