Therapeutic Effect of Crizotinib for Rearrangement-negative, High Phosphorylated ALK Patients

Patients with positive ALK phosphorylation expression were treated with crizotinib 250 mg/day orally. A treatment cycle was defined as 30 days of once-daily crizotinib treatment. Treatment with crizotinib continued until the patient experienced unacceptable toxicity, was pregnant, or started new cancer therapy.