M
Maria Orr
Researcher at AstraZeneca
Publications - 15
Citations - 2217
Maria Orr is an academic researcher from AstraZeneca. The author has contributed to research in topics: Olaparib & PARP inhibitor. The author has an hindex of 12, co-authored 15 publications receiving 1930 citations.
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Journal ArticleDOI
Olaparib Maintenance Therapy in Patients With Platinum-Sensitive Relapsed Serous Ovarian Cancer: A Preplanned Retrospective Analysis of Outcomes by BRCA Status in a Randomised Phase 2 Trial
Jonathan A. Ledermann,Philipp Harter,Charlie Gourley,Michael Friedlander,Ignace Vergote,Gordon J. S. Rustin,Clare L. Scott,Werner Meier,Ronnie Shapira-Frommer,Tamar Safra,Daniela Matei,Anitra Fielding,Stuart Spencer,Brian Dougherty,Maria Orr,Darren Hodgson,J. Carl Barrett,Ursula A. Matulonis +17 more
TL;DR: The hypothesis that patients with platinum-sensitive recurrent serous ovarian cancer with a BRCA mutation have the greatest likelihood of benefiting from olaparib treatment is supported.
Journal ArticleDOI
Olaparib maintenance therapy in patients with platinum-sensitive relapsed serous ovarian cancer: A preplanned retrospective analysis of outcomes by BRCA status in a randomised phase 2 trial
Jonathan A. Ledermann,Philipp Harter,Charlie Gourley,Michael Friedlander,Ignace Vergote,Gordon J. S. Rustin,Clare L. Scott,Werner Meier,Ronnie Shapira-Frommer,Tamar Safra,Daniela Matei,Anitra Fielding,Stuart Spencer,Brian Dougherty,Maria Orr,Darren Hodgson,J. Carl Barrett,Ursula A. Matulonis +17 more
TL;DR: Poly(ADp-ribose) polymerase inhibitors have been investigated as treatment for a number of tumors, including those due to BRCA mutations, and one potent oral poly(ADP-riboses) is found to be effective.
Journal ArticleDOI
Candidate biomarkers of PARP inhibitor sensitivity in ovarian cancer beyond the BRCA genes
Darren Hodgson,Brian Dougherty,Zhongwu Lai,Anitra Fielding,Lynda Grinsted,Stuart Spencer,Mark J. O'Connor,Tony W. Ho,Jane Robertson,Jerry S. Lanchbury,Kirsten Timms,Alexander Gutin,Maria Orr,Helen Jones,Blake Gilks,Chris Womack,Charlie Gourley,Jonathan A. Ledermann,J. Carl Barrett +18 more
TL;DR: Ovarian cancer patients with tumours harbouring loss-of-function mutations in HRR genes other than BRCA1/2 may constitute a small, molecularly identifiable and clinically relevant population who derive treatment benefit from olaparib similar to patients with BRCAm.
Journal ArticleDOI
A comparison of ARMS and DNA sequencing for mutation analysis in clinical biopsy samples
Gillian Ellison,Emma Donald,Gael McWalter,Lucy Knight,Lucy Knight,Lynn Fletcher,James Sherwood,Mireille Cantarini,Maria Orr,Georgina Speake +9 more
TL;DR: ARMS was more sensitive and robust at detecting defined somatic mutations than DNA sequencing on clinical samples where the predominant sample type was FF-PET, and improved both the sensitivity and speed of analysis compared with sequencing.
Journal ArticleDOI
Detection of BRAF mutations in the tumour and serum of patients enrolled in the AZD6244 (ARRY-142886) advanced melanoma phase II study.
Ruth E Board,Gillian Ellison,Maria Orr,K R Kemsley,Gael McWalter,L Y Blockley,Simon Dearden,Clive Morris,Malcolm R Ranson,Mireille Cantarini,Caroline Dive,A. Hughes +11 more
TL;DR: Progression-free survival (PFS) of patients with BRAF+ tumour and cfDNA was not significantly different compared with tumour BRAF+, indicating that cfDNA BRAF detection is not associated with poorer prognosis on PFS in stage III/IV advanced melanoma.