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Updated: Sep 19, 2025

Testing Targeted Therapies in Cancer using Structural DNA Alteration Analysis and Patient-Derived Xenografts
Published on: July 25, 2020
Ag(e)nostic precision oncology therapy approvals across the years
Matthew R Kudek1, Jacob J Adashek2, Razelle Kurzrock3
1Department of Pediatrics, Medical College of Wisconsin, Milwaukee, WI, USA; Department of Microbiology and Immunology, Medical College of Wisconsin, Milwaukee, WI, USA.
Abstract:
Precision oncology leverages targetable molecular aberrations to treat cancer. Initially, use of these therapies required biomarker detection in a specific tumor type. Recently, regulatory agencies have approved highly active biomarker-based, tumor-agnostic therapies, which are crucial for the unmet needs of patients with rare cancer, including children with cancer, because an infrequent biomarker in an already rare cancer represents a prohibitive clinical trial accrual barrier. There are also now several 'ag(e)nostic' precision oncology therapies - agnostic to tumor type and also approved for all ages. In this opinion, we provide historical context for the precision oncology field and contend that, moving forward, ag(e)nostic precision oncology approvals should be the norm for this class of therapeutics rather than an exception to the rule.
Insights
Precision oncology treatments targeting molecular aberrations are evolving. Tumor-agnostic and age-agnostic therapies should become standard for cancer treatment, especially for rare cancers.
Area of Science:
- Oncology
- Genetics
- Pharmacology
Background:
- Precision oncology initially required tumor-specific biomarkers for targeted therapies.
- Rare cancers, including pediatric cancers, face challenges in clinical trial enrollment due to infrequent biomarkers.
Purpose of the Study:
- To provide historical context for precision oncology.
- To advocate for age- and tumor-agnostic precision oncology approvals as the standard.
Main Methods:
- Literature review and historical analysis of precision oncology drug approvals.
- Analysis of regulatory trends and clinical trial enrollment barriers.
Main Results:
- Tumor-agnostic therapies have been approved, addressing unmet needs in rare and pediatric cancers.
- Age-agnostic precision oncology therapies are also emerging, applicable across all age groups.
Conclusions:
- The approval of highly active biomarker-based, tumor-agnostic therapies is critical for rare cancer populations.
- Age- and tumor-agnostic precision oncology approvals should be the standard, not the exception, for future therapeutics.
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