Matching hallmarks of cancer complexity with N-of-1 precision oncology

Vivek Subbiah1

  • 1Sarah Cannon Research Institute, Nashville, TN, USA.

Med (New York, N.Y.)
|March 14, 2026
PubMed

Insights

Precision oncology requires targeting multiple cancer mechanisms. N-of-1 trials demonstrate that molecularly matched multi-drug regimens are feasible, with survival directly correlating to the matching score, not drug quantity or dosage.

Area of Science:

  • Oncology
  • Genomics
  • Clinical Trials

Background:

  • Durable cancer control necessitates co-targeting multiple hallmark capabilities, moving beyond single-pathway inhibition.
  • Implementing systems-level precision oncology strategies at scale presents significant challenges.

Purpose of the Study:

  • To assess the feasibility of N-of-1, molecularly matched multi-drug regimens.
  • To determine the relationship between regimen characteristics and patient survival outcomes.

Main Methods:

  • Conducting N-of-1 trials for personalized cancer treatment.
  • Utilizing molecular matching to guide multi-drug regimen selection.
  • Analyzing survival data in relation to matching score, drug number, and dose.

Main Results:

  • N-of-1 molecularly matched multi-drug regimens are feasible without traditional phase 1 trials.
  • Patient survival demonstrated a linear correlation with the molecular matching score.
  • Survival outcomes did not scale with the number of drugs or their dosage.

Conclusions:

  • N-of-1 trials offer a viable pathway for personalized, molecularly matched combination therapies.
  • The degree of molecular matching is a critical determinant of survival in precision oncology.
  • Future treatment strategies should prioritize molecular concordance over empirical dose or drug number escalation.

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