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The lancet oncology · Oct 2024
ReviewBest practices and novel approaches for the preclinical development of drug-radiotherapy combinations for cancer treatment.
- Pataje G S Prasanna, Mansoor M Ahmed, Julie A Hong, and C Norman Coleman.
- Radiation Research Program, Division of Cancer Treatment and Diagnosis, National Cancer Institute, National Institutes of Health, Bethesda, MD, USA. Electronic address: pat.prasanna@nih.gov.
- Lancet Oncol. 2024 Oct 1; 25 (10): e501e511e501-e511.
AbstractDrug-radiation combination therapy is a practical approach to improving clinical outcomes for many tumours. Unfortunately, most clinical combination studies combine drugs with radiotherapy empirically and do not exploit mechanistic synergy in cell death and the interconnectivity of molecular pathways of tumours or rationale for selecting the dose, fractionation, and schedule, which can result in suboptimal efficacy and exacerbation of toxic effects. However, opportunities exist to generate compelling preclinical evidence for combination therapies from fit-for-purpose translational studies for simulating the intended clinical study use scenarios with standardised preclinical assays and algorithms to evaluate complex molecular interactions and analysis of synergy before clinical research. Here, we analyse and discuss the core issues in the translation of preclinical data to enhance the relevance of preclinical assays, in vitro clonogenic survival along with apoptosis, in vivo tumour regression and growth delay assays, and toxicology of organs at risk without creating barriers to innovation and provide a synopsis of emerging areas in preclinical radiobiology.Copyright © 2024 Published by Elsevier Ltd.
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