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Updated: Jan 20, 2026

Dose Escalation: A Method for Developing Drug Resistance in Cancer Cells
Published on: April 30, 2023
Drug dose and drug choice: Optimizing medical therapy for veterinary cancer
Douglas H Thamm1,2,3, Daniel L Gustafson1,2,3
1Flint Animal Cancer Center, Colorado State University, Fort Collins, Colorado.
Abstract:
Although novel agents hold great promise for the treatment of animal neoplasia, there may be room for significant improvement in the use of currently available agents. These improvements include altered dosing schemes, novel combinations, and patient-specific dosing or selection of agents. Previous studies have identified surrogates for "individualized dose intensity,", for example, patient size, development of adverse effects, and pharmacokinetic parameters, as potential indicators of treatment efficacy in canine lymphoma, and strategies for patient-specific dose escalation are discussed. Strategies for treatment selection in individual patients include conventional histopathology, protein-based target assessment (eg, flow cytometry, immunohistochemistry, and mass spectrometry), and gene-based target assessment (gene expression profiling and targeted or global sequencing strategies). Currently available data in animal cancer evaluating these strategies are reviewed, as well as ongoing studies and suggestions for future directions.
Insights
Optimizing current cancer treatments in animals involves adjusting doses, combining drugs, and personalizing therapy. Research explores using patient factors and advanced diagnostics for better outcomes in animal neoplasia.
Area of Science:
- Veterinary Oncology
- Pharmacology
- Molecular Diagnostics
Background:
- Novel cancer therapies offer promise, but current treatments for animal neoplasia can be improved.
- Enhancements include modified dosing, drug combinations, and individualized treatment selection.
Purpose of the Study:
- To review strategies for optimizing current veterinary cancer treatments.
- To explore patient-specific dosing and agent selection methods.
Main Methods:
- Review of existing studies on individualized dose intensity surrogates (e.g., patient size, adverse effects, pharmacokinetics).
- Discussion of treatment selection strategies: conventional histopathology, protein-based (flow cytometry, immunohistochemistry, mass spectrometry), and gene-based (gene expression profiling, sequencing) assessments.
Main Results:
- Identified patient size, adverse effects, and pharmacokinetics as potential efficacy indicators in canine lymphoma.
- Highlighted various diagnostic approaches for personalized cancer treatment selection.
Conclusions:
- Significant improvements in animal neoplasia treatment are achievable through optimized use of existing agents.
- Personalized medicine approaches, utilizing advanced diagnostics, are crucial for enhancing treatment efficacy and patient outcomes.
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