Abstract 5415
Background
Anti-angiogenic agents are approved for treatment of various cancers like Colon, Ovary, Breast, Glioma, Lung, Kidney and Liver. Axitinib, a selective inhibitor of Vascular Endothelial Growth Factor Receptors (VEGFR 1 / 2 / 3) was initially approved as a single agent for treatment of advanced Renal Cell Carcinomas (RCC), following failure of one prior line of systemic therapy, and recently as frontline treatment for RCC in combination with Pembrolizumab. Currently, Axitinib is not approved by US FDA or recommended by NCCN for use in combination with cytotoxic/targeted or endocrine therapies. We show that Axitinib can be combined for treatment of advanced solid organ tumors based upon Encyclopedic Tumor Analysis (ETA) with clinical benefit.
Methods
Between January 1, 2017 and November 30, 2018, 191 patients obtained ETA for considering precision treatment options to treat advanced broadly refractory solid organ tumors. Fresh tumor biopsies were submitted for evaluation. In a cohort of 30 patients who received combination treatment with Axitinib and cytotoxic and/or targeted and/or endocrine agents based on ETA, treatment response was evaluated as per RECIST 1.1 criteria. Objective Response Rate (ORR), Clinical Benefit Rate (CBR) and Progression Free Survival (PFS) were retrospectively determined. Therapy related adverse events were reviewed from clinical records.
Results
Out of 30 patients treated with combinations of Axitinib and either targeted, cytotoxic or endocrine drugs Partial Response (PR) was observed in 13 (43.3%) patients and Stable Disease (SD) was observed in 17 (56.7%) patients. ORR was 45.7% and CBR was 97.1%. Median PFS was 125 days (Range 35-368 days). There were no Grade IV treatment related Adverse Events (AEs) or any treatment related deaths. The most common Grade III treatment related AEs were anorexia, fatigue, and neutropenia.
Conclusions
Axitinib in combination with appropriate targeted and/or cytotoxic and/or endocrine drugs determined by ETA is well tolerated and is a potent precision therapeutic option for advanced broadly refractory solid organ cancers irrespective of the organ of origin.
Clinical trial identification
Editorial acknowledgement
Legal entity responsible for the study
The authors.
Funding
Datar Cancer Genetics Limited.
Disclosure
T. Crook: Advisory / Consultancy: Datar Cancer Genetics Limited. D. Akolkar: Full / Part-time employment: Datar Cancer Genetics Limited. D. Patil: Full / Part-time employment: Datar Cancer Genetics Limited. A. Bhatt: Advisory / Consultancy: Datar Cancer Genetics Limited. A. Ranade: Advisory / Consultancy: Datar Cancer Genetics Limited. V. Datta: Full / Part-time employment: Datar Cancer Genetics Limited. S. Schuster: Full / Part-time employment: Datar Cancer Genetics Limited. A. Srinivasan: Full / Part-time employment: Datar Cancer Genetics Limited. R. Datar: Officer / Board of Directors: Datar Cancer Genetics Limited.
Resources from the same session
2171 - CCND1 Amplification Contributes to Immunosuppression in Head and Neck Squamous Cell Carcinoma and the Association with a Poor Response to Immune Checkpoint Inhibitors
Presenter: Chloe Huang
Session: Poster Display session 3
Resources:
Abstract
2624 - Efficacy of PD-1/PD-L1 inhibitors in the treatment of non-small cell lung cancer patients with sensitive genes mutation
Presenter: Hui-Juan Cui
Session: Poster Display session 3
Resources:
Abstract
3494 - Neutrophil to Lymphocyte Ratio (NLR) kinetics as predictors of outcomes in metastatic renal cell carcinoma (mRCC) and non-small cell lung cancer (NSCLC) patients treated with nivolumab (N).
Presenter: Audrey Simonaggio
Session: Poster Display session 3
Resources:
Abstract
3964 - Predictive markers of checkpoint inhibitor activity in adult metastatic solid tumours
Presenter: Alexandra Pender
Session: Poster Display session 3
Resources:
Abstract
3041 - Blood-based TMB (bTMB) correlates with tissue-based TMB (tTMB) in a multi-cancer Phase I IO Cohort
Presenter: Daniel Araujo
Session: Poster Display session 3
Resources:
Abstract
3910 - Analysis of Molecular Profile Complexities for Immunotherapy Decision Support
Presenter: Robert Dóczi
Session: Poster Display session 3
Resources:
Abstract
4836 - The Role of Tumor Neoantigens in the Differential Response to Immunotherapy (IO) in EGFR and BRAF Mutated Lung Cancers - Quantity or Quality?
Presenter: Katrina Case
Session: Poster Display session 3
Resources:
Abstract
1929 - Impact of previous corticosteroid (CS) exposure on efficacy of Programmed Cell Death-(Ligand) 1 blockade in patients with advanced Non-Small-Cell Lung Cancer (NSCLC): a single Center retrospective analysis
Presenter: Fabrizio Nelli
Session: Poster Display session 3
Resources:
Abstract
2601 - Comparison 18F-FDG-PET/CT criteria for prediction of therapy response and clinical outcome in patients with metastatic melanoma treated with Ipilimumab and PD-1 inhibitors
Presenter: Sabrina Vari
Session: Poster Display session 3
Resources:
Abstract
3628 - Predictive model for survival in advanced non-small-cell lung cancer (NSCLC) treated with frontline pembrolizumab
Presenter: Xabier Mielgo Rubio
Session: Poster Display session 3
Resources:
Abstract