Table 2 Properties of post-approval trajectories.

From: Large numbers of patients are needed to obtain additional approvals for new cancer drugs: A retrospective cohort study

  

Number of trajectories

Trajectory property

Industry initiated

66 (18%)a

Biomarker enriched

107 (24%)

Trajectory outcomes

Secondary FDA approval

14 (3%)

NCCN off-label recommendation

14 (3%)

Secondary FDA approval presenting substantial clinical benefit (ESMO-MCBS)

4 (1%)

Trajectory drug type

Immunotherapy

97 (22%)

Cytotoxic therapy

15 (3%)

Targeted therapy

339 (75%)

  1. aClinical trials for mixed malignancies were omitted from this calculation.