Summary
Glioblastoma is a fast-growing primary brain tumor observed in adults with the worst prognosis. Preclinical studies have demonstrated the encouraging anticancer activity of statins. This study evaluated the efficacy of atorvastatin in combination with standard therapy in patients with glioblastoma. In this prospective, open-label, single-arm, phase II study, patients were treated with atorvastatin in combination with the standard glioblastoma therapy comprising radiotherapy and temozolomide. The primary endpoint was progression-free survival (PFS) at 6 months (PFS-6). Among 36 patients enrolled from January 2014 to January 2017, the median age was 52 (20–69) years; 22% of the patients were aged ≥60 years, and 62% were male. Patients received atorvastatin for a median duration of 6.2 (0.3–28) months. At a median follow-up of 19 months, the PFS-6 rate was 66%, with a median PFS of 7.6 (5.7–9.4) months. In terms of Grade ≥ 3 hematological adverse events, thrombocytopenia and neutropenia occurred in 7% and 12% of patients, respectively. In multivariate analyses, high baseline low-density lipoprotein levels were associated with worse survival (P = 0.046). Atorvastatin was not shown to improve PFS-6. However, this study identified that high low-density lipoprotein levels are an independent predictor of poor cancer-related outcomes. Future clinical trials testing statins should aim to enroll patients with slow-growing tumors.
Clinical trial information: NCT0202957 (December 12, 2013)
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The study was supported by the King Fahad Medical City (KFMC) Intramural Fund (Grant: 13–200).
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Supplementary Figure S1.
Anticipated synergism of combination treatment with atorvastatin, radiation, and temozolomide (PNG 156 kb)
Supplementary Fig. S2
Treatment schema (PNG 136 kb)
Supplementary Fig. S3
Timing of tumor response assessment (PNG 141 kb)
Supplementary Fig. S4
CONSORT diagram of screened and enrolled patients. CONSORT, Consolidated Standards of Reporting Trials; ECOG PS, Eastern Cooperative Oncology Group performance status; Rx, prescription (PNG 150 kb)
Supplementary Fig. S5
Prespecified Kaplan–Meier estimates of overall survival (high baseline LDL vs. normal baseline LDL levels). CI, confidence interval; HR, hazard ratio; LDL, low-density lipoprotein (PNG 160 kb)
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Altwairgi, A.K., Alghareeb, W.A., AlNajjar, F.H. et al. Atorvastatin in combination with radiotherapy and temozolomide for glioblastoma: a prospective phase II study. Invest New Drugs 39, 226–231 (2021). https://doi.org/10.1007/s10637-020-00992-5
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DOI: https://doi.org/10.1007/s10637-020-00992-5