Ordering and Interpreting Precision Oncology Studies for Adults With Advanced Solid Tumors: A Primer

Area of Science:

• Oncology
• Genetics
• Molecular Biology

Background:

• Precision oncology aims to tailor cancer treatments based on individual genetic profiles.
• Accurate identification and interpretation of genetic alterations are crucial for effective treatment selection.
• Clinicians need guidance to order appropriate genetic tests and understand their results.

Purpose of the Study:

• To provide a primer for clinicians on ordering and interpreting genetic tests in oncology.
• To enhance the understanding of germline and somatic testing for malignancies.
• To support informed decision-making in precision cancer care.

Main Methods:

• Review of germline DNA testing procedures (blood, buccal swab, saliva).
• Explanation of somatic testing on tumor tissue or circulating tumor DNA.
• Discussion of the clinical utility of genetic alterations in cancer.

Main Results:

• Germline testing offers unique treatment options but doesn't detect tumor-specific alterations.
• Somatic testing identifies alterations present from tumor development.
• Technological advancements improve the identification of targetable genetic alterations.

Conclusions:

• Realizing precision oncology depends on identifying actionable genetic alterations.
• Knowledge of genetic testing is essential for improving treatment response and minimizing toxicity.
• Advancements in understanding tumor biology enhance the therapeutic landscape for cancer patients.