Abstract
Purpose
Glioblastoma (GBM) is one of the worst cancers in terms of prognosis. Standard therapy consists of resection with concomitant chemoradiotherapy. Resistance to nimustine hydrochloride (ACNU), an alkylating agent, has been linked to methylguanine DNA methyltransferase (MGMT). Daily administration of procarbazine (PCZ) has been reported to decrease MGMT activity. This study investigated the efficacy of ACNU + PCZ compared to ACNU alone for GBM and anaplastic astrocytoma (AA).
Methods
Patients (20–69 years) who had newly diagnosed AA and GBM were randomly assigned to receive radiotherapy with ACNU alone or with ACNU + PCZ. The primary endpoint was overall survival (OS). This was designed as a phase II/III trial with a total sample size of 310 patients and was registered as UMIN-CTR C000000108.
Results
After 111 patients from 19 centers in Japan were enrolled, this study was terminated early because temozolomide was newly approved in Japan. The median OS and median progression-free survival (PFS) with ACNU alone (n = 55) or ACNU + PCZ (n = 56) in the intention-to-treat population were 27.4 and 22.4 months (p = 0.75), and 8.6 and 6.9 months, respectively. The median OS and median PFS of the GBM subgroup treated with ACNU alone (n = 40) or ACNU + PCZ (n = 41) were 19.0 and 19.5 months, and 6.2 and 6.3 months, respectively. Grade 3/4 hematologic adverse events occurred in more than 40 % of patients in both arms, and 27 % of patients discontinued treatment because of adverse events.
Conclusions
The addition of PCZ to ACNU was not beneficial, in comparison with ACNU alone, for patients with newly diagnosed AA and GBM.
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Abbreviations
- GBM:
-
Glioblastoma
- AA:
-
Anaplastic astrocytoma
- ACNU:
-
Nimustine hydrochloride
- BCNU:
-
Carmustine
- TMZ:
-
Temozolomide
- MGMT:
-
Methylguanine DNA methyltransferase
- WHO:
-
World Health Organization
- PFS:
-
Progression-free survival
- OS:
-
Overall survival
- RT:
-
Radiotherapy
- HR:
-
Hazard ratio
- AE:
-
Adverse event
- ND:
-
Not determined
- CR:
-
Complete response
- PR:
-
Partial response
- SD:
-
Stable disease
- PD:
-
Progressive disease
- WBC:
-
White blood cell
- 3D-CRT:
-
Three-dimensional conformal radiotherapy
- CT:
-
Computed tomography
- IMRT:
-
Intensity-modulated radiation therapy
- BEV:
-
Beam’s eye views
- DVH:
-
Dose–volume histograms
- GTV:
-
Gross tumor volume
- CTV:
-
Clinical target volume
- PTV:
-
Planning target volume
- ICRU:
-
International Commission on Radiation Units
- FLAIR:
-
Fluid-attenuated inversion recovery
- OAR:
-
Organ-at-risk
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Acknowledgments
We thank all the members of the JCOG Brain Tumor Study Group and the staff of the JCOG Data Center. We appreciate Dr. Nobuaki Funata and Dr. Toru Iwaki for pathological review, Dr. Satoshi Ishikura for quality assurance of radiation therapy, and Dr. Hiroshi Katayama, Dr. Kenichi Nakamura, and Mr. Hidenobu Yamada for review of the manuscript. This work was supported in part by the National Cancer Center Research and Development Fund (23A-16 and 23A-20), the Health and Labour Sciences Research Grants (H14-032, H15-025, H16-005, H17-005), and the Grant-in Aid for Cancer Research (20S-4, 20S-6) from the Ministry of Health, Labour and Welfare.
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The authors declare that they have no conflict of interest.
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Shibui, S., Narita, Y., Mizusawa, J. et al. Randomized trial of chemoradiotherapy and adjuvant chemotherapy with nimustine (ACNU) versus nimustine plus procarbazine for newly diagnosed anaplastic astrocytoma and glioblastoma (JCOG0305). Cancer Chemother Pharmacol 71, 511–521 (2013). https://doi.org/10.1007/s00280-012-2041-5
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DOI: https://doi.org/10.1007/s00280-012-2041-5