Table 3. Clinicopathologic characteristics and outcomes of crizotinib therapy in 2 patients with rare ALK fusion types detected by capture-based NGS.
Fusion type | Sex | Age (years) | Histology | Surgical history | Clinical stage before crizotinib therapy | ag | Crizotinib therapy | |||
---|---|---|---|---|---|---|---|---|---|---|
Timing | Overall response | Status | PFS (months) | |||||||
FAM179A-ALK | Female | 36 | Adenocar- cinoma | None | T4N2M1b IV |
None | First-line | PR | Not PD | 12.06 |
COL25A1-ALK | Male | 58 | Adenocar-cinoma | Resected P-T2aN0M0 Poorly differ- entiated |
r-T0N0M1b IV |
None | First-line | PR | PD | 6.28 |
NGS, next-generation sequencing; PD, progressive disease; PFS, progression-free survival; PR, partial response.