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Article

Exploratory Study of the Effect of IMA950/Poly-ICLC Vaccination on Response to Bevacizumab in Relapsing High-Grade Glioma Patients

1
Laboratory of Tumour Immunology and Department of Oncology, Geneva University Hospital, 1211 Geneva, Switzerland
2
Translational Research Center for Oncohaematology, Department of Internal Medicine Specialties, University of Geneva, 1211 Geneva, Switzerland
3
Department of Oncology, Clinical Research Unit, Dr Dubois Ferrière Dinu Lipatti Research Foundation, Geneva University Hospital, 1211 Geneva, Switzerland
*
Author to whom correspondence should be addressed.
Present affiliation: Sarah Cannon Research Institute UK, London W1G 6AD, UK.
Cancers 2019, 11(4), 464; https://doi.org/10.3390/cancers11040464
Received: 15 February 2019 / Revised: 26 March 2019 / Accepted: 28 March 2019 / Published: 2 April 2019
(This article belongs to the Special Issue Cancer Vaccines: Research and Applications)
Immunotherapy, including therapeutic vaccines, is increasingly being developed for patients with high-grade glioma, and combinations of immunotherapies and synergy with standard of care are being investigated. In this regard, bevacizumab (BEV) has been shown to synergize with immunotherapy in preclinical studies of glioma and in other tumour entities. Here, we conducted a post-hoc exploratory study to evaluate the effect of the IMA950/poly-ICLC peptide vaccine on subsequent BEV administration in high-grade glioma patients. 16 IMA950-vaccinated and 40 non-vaccinated patients were included. At initial diagnosis, patients benefited from surgery and chemoradiation. At first or subsequent recurrence, patients received 10mg/kg of BEV every 2–3 weeks. Primary endpoints were overall survival (OS) and progression-free survival (PFS) from BEV initiation. IMA950-vaccinated patients did not show improved response to BEV as compared to non-vaccinated patients: there was no difference in median PFS (2.6 vs. 4.2 months for vaccinated and control patients, respectively, p = 0.50) nor in median OS (7.8 vs. 10.0 months for vaccinated and control patients, respectively, p = 0.69). In conclusion, potential synergy of BEV and therapeutic vaccines, when administered sequentially, has yet to be established in the clinical setting of GBM recurrence. Potential synergy of concomitant administration should be tested in future trials. View Full-Text
Keywords: glioma; bevacizumab; immunotherapy; IMA950; peptide vaccine glioma; bevacizumab; immunotherapy; IMA950; peptide vaccine
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MDPI and ACS Style

Boydell, E.; Marinari, E.; Migliorini, D.; Dietrich, P.-Y.; Patrikidou, A.; Dutoit, V. Exploratory Study of the Effect of IMA950/Poly-ICLC Vaccination on Response to Bevacizumab in Relapsing High-Grade Glioma Patients. Cancers 2019, 11, 464. https://doi.org/10.3390/cancers11040464

AMA Style

Boydell E, Marinari E, Migliorini D, Dietrich P-Y, Patrikidou A, Dutoit V. Exploratory Study of the Effect of IMA950/Poly-ICLC Vaccination on Response to Bevacizumab in Relapsing High-Grade Glioma Patients. Cancers. 2019; 11(4):464. https://doi.org/10.3390/cancers11040464

Chicago/Turabian Style

Boydell, Emma, Eliana Marinari, Denis Migliorini, Pierre-Yves Dietrich, Anna Patrikidou, and Valérie Dutoit. 2019. "Exploratory Study of the Effect of IMA950/Poly-ICLC Vaccination on Response to Bevacizumab in Relapsing High-Grade Glioma Patients" Cancers 11, no. 4: 464. https://doi.org/10.3390/cancers11040464

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