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Opinion|Videos|April 7, 2025

Monitoring Tumor Heterogeneity and Detecting Resistance

Author(s)Breelyn Wilky, MD, Jason Sicklick, MD, FACS, Seth M. Pollack, MD

Experts discuss the tools available to monitor tumor heterogeneity and detect resistance, examining the reliability of current testing methods, differences in molecular testing for newly diagnosed metastatic patients vs those who have progressed, the role of liquid biopsy compared to traditional tissue biopsy, and how these test results inform risk assessment and clinical decision-making.

Episodes in this series

EP. 1 Optimizing TKI Selection and Sequencing Strategies in Advanced GIST Beyond First-Line Therapy

EP. 1 Optimizing TKI Selection and Sequencing Strategies in Advanced GIST Beyond First-Line Therapy

EP. 2 Biological Mechanisms of GIST Resistance and Tumor Heterogeneity

EP. 2 Biological Mechanisms of GIST Resistance and Tumor Heterogeneity

EP. 3 Monitoring Tumor Heterogeneity and Detecting Resistance

EP. 3 Monitoring Tumor Heterogeneity and Detecting Resistance

EP. 4 Post-Imatinib Progression: Decision Factors and Treatment Options

EP. 4 Post-Imatinib Progression: Decision Factors and Treatment Options

EP. 5 INVICTUS Trial: Ripretinib in Fourth-Line Setting

EP. 5 INVICTUS Trial: Ripretinib in Fourth-Line Setting

EP. 6 INTRIGUE Trial: Key Findings in Second-Line Setting

EP. 6 INTRIGUE Trial: Key Findings in Second-Line Setting

EP. 7 ctDNA Biomarkers in INTRIGUE: Understanding Resistance Patterns

EP. 7 ctDNA Biomarkers in INTRIGUE: Understanding Resistance Patterns

EP. 8 Managing Adverse Events With Different TKIs

EP. 8 Managing Adverse Events With Different TKIs

EP. 9 Next-Generation Treatment Strategies for GIST: Evaluating Combination Therapies and Mutation-Specific Approaches

EP. 9 Next-Generation Treatment Strategies for GIST: Evaluating Combination Therapies and Mutation-Specific Approaches

EP. 10 Practical Recommendations for Community Oncologists

EP. 10 Practical Recommendations for Community Oncologists

Video content above is prompted by the following:

What tools do we currently have to monitor tumor heterogeneity and detect resistance? How reliable are our current testing methods in capturing the complete resistance profile?
How does molecular testing differ for newly diagnosed metastatic patients vs those who have progressed on prior therapies?
What role does liquid biopsy play compared to traditional tissue biopsy in detecting heterogeneity?
How do you incorporate these test results into your risk assessment and clinical decision-making?

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