Abstract 1073
Background
Anaplastic and atypical recurrent meningioma constitute a rare pathology with very few available effective systemic treatments.
Methods
A comprehensive analysis of 31 patients with atypical (WHO II) or anaplastic meningiomas (WHO III) that were recurrent and refractory to radiotherapy was conducted in two reference centers of Colombia. Only patients who had received some systemic treatment (sunitinib, everolimus/octeotride and bevacizumab) and had a complete follow-up were included. Overall survival (OS), progression free survival and toxicities were evaluated. Additionally, tissue samples were examined for PDGFRa and VEGFR2 and its expression was correlated with outcomes.
Results
Twenty two patients (72%) were females with a median age of 55 years (SD ± 15.3). The most prevalent histology was anaplastic meningioma in 20 patients (65%) with 48% of patients suffering from three previous relapses before the start of systemic treatment. A total of 14 patients received combination therapy with octeotride/everolimus, 11 received sunitinib and the remaining 6 other second line agents. Median OS was 37.3 months (95%CI 28.5-42.1) and the PFS during the treatment with everolimus/octeotride (EO) and sunitinib (Su) was 12.1 months (95%CI 9.2-21.1) and 9.1 months (95%CI 6.8-16.8); p = 0.43), respectively. The OS of the group treated with the EO→Su→Bev sequence (1st/2nd/3rd line) was 6.5 months longer than the Su→EO→Bev sequence, a finding that was not significant (36.0 vs. 29.5 months; p = 0.349). When analyzing molecular markers, the positive PDGFRa and negative VEGFR2 expression were associated with longer survival both in OS and PFS.
Conclusions
Sunitinib and ocreotide/everolimus have similar efficacy and safety in the systemic management of refractory meningioma. VEGFR2 and PDGFRa expression are strongly associated with major survival endpoints.
Clinical trial identification
Legal entity responsible for the study
Foundation for Clinical and Applied Cancer Research – FICMAC
Funding
Supported by the Foundation for Clinical and Applied Cancer Research - FICMAC (Bogotá Colombia) research grant 011-2017SD.
Editorial Acknowledgement
Disclosure
All authors have declared no conflicts of interest.
Resources from the same session
2595 - Real-Life Utilization of Genomic testing for invasive Breast Cancer patients in Italy and France reduces Chemotherapy Recommendations
Presenter: Sandro Barni
Session: Poster display session: Breast cancer - early stage, locally advanced & metastatic, CNS tumours, Developmental therapeutics, Genitourinary tumours - prostate & non-prostate, Palliative care, Psycho-oncology, Public health policy, Sarcoma, Supportive care
Resources:
Abstract
2343 - Benefit of adjuvant chemotherapy in hormone receptor-positive, HER2-negative, invasive lobular carcinoma of the breast
Presenter: Alexandre De Nonneville
Session: Poster display session: Breast cancer - early stage, locally advanced & metastatic, CNS tumours, Developmental therapeutics, Genitourinary tumours - prostate & non-prostate, Palliative care, Psycho-oncology, Public health policy, Sarcoma, Supportive care
Resources:
Abstract
2990 - Baseline lymphocyte counts predict distant recurrence in early breast cancer
Presenter: Gun Min Kim
Session: Poster display session: Breast cancer - early stage, locally advanced & metastatic, CNS tumours, Developmental therapeutics, Genitourinary tumours - prostate & non-prostate, Palliative care, Psycho-oncology, Public health policy, Sarcoma, Supportive care
Resources:
Abstract
4532 - A propensity score analysis exploring the impact of the addition of adjuvant chemotherapy (aCT) to hormone therapy (aHT) in a multi-center series of resected luminal early stage pure Invasive Lobular Breast Carcinoma (ILC).
Presenter: Luisa Carbognin
Session: Poster display session: Breast cancer - early stage, locally advanced & metastatic, CNS tumours, Developmental therapeutics, Genitourinary tumours - prostate & non-prostate, Palliative care, Psycho-oncology, Public health policy, Sarcoma, Supportive care
Resources:
Abstract
2344 - Benefit of Adjuvant Systemic Therapies in HR+ HER2- pT1ab Node-Negative Breast Carcinomas
Presenter: Alexandre De Nonneville
Session: Poster display session: Breast cancer - early stage, locally advanced & metastatic, CNS tumours, Developmental therapeutics, Genitourinary tumours - prostate & non-prostate, Palliative care, Psycho-oncology, Public health policy, Sarcoma, Supportive care
Resources:
Abstract
3525 - Anti-proliferative effect of oral metronomic vinorelbine in PAM50 Luminal/HER2-negative early breast cancer (SOLTI-1501 VENTANA): an open-label, randomized, three-arm, multicenter, window-of-opportunity study
Presenter: Aleix Prat
Session: Poster display session: Breast cancer - early stage, locally advanced & metastatic, CNS tumours, Developmental therapeutics, Genitourinary tumours - prostate & non-prostate, Palliative care, Psycho-oncology, Public health policy, Sarcoma, Supportive care
Resources:
Abstract
3908 - Clinicopathologic significance of androgen receptor expression and discordant receptor status during progression in breast cancer
Presenter: Chan Heun Park
Session: Poster display session: Breast cancer - early stage, locally advanced & metastatic, CNS tumours, Developmental therapeutics, Genitourinary tumours - prostate & non-prostate, Palliative care, Psycho-oncology, Public health policy, Sarcoma, Supportive care
Resources:
Abstract
4075 - The outcomes of early breast cancers utilizing the Oncotype Dx Recurrence score (RS) instead of Clinico-pathological (CP) factors for prognostic risk assessment: A Single Institution Experience
Presenter: Adhar Alsayed
Session: Poster display session: Breast cancer - early stage, locally advanced & metastatic, CNS tumours, Developmental therapeutics, Genitourinary tumours - prostate & non-prostate, Palliative care, Psycho-oncology, Public health policy, Sarcoma, Supportive care
Resources:
Abstract
738 - Circulating tumor cells as a prognostic marker in non metastatic breast cancer patients.
Presenter: Summar Elmorshidy
Session: Poster display session: Breast cancer - early stage, locally advanced & metastatic, CNS tumours, Developmental therapeutics, Genitourinary tumours - prostate & non-prostate, Palliative care, Psycho-oncology, Public health policy, Sarcoma, Supportive care
Resources:
Abstract
3151 - Molecular subtyping of breast cancer by dedicated breast PET
Presenter: Satoshi Sueoka
Session: Poster display session: Breast cancer - early stage, locally advanced & metastatic, CNS tumours, Developmental therapeutics, Genitourinary tumours - prostate & non-prostate, Palliative care, Psycho-oncology, Public health policy, Sarcoma, Supportive care
Resources:
Abstract