Phase III Study of TY-9591 in Patients With Locally Advanced or Metastatic Non-small Cell Lung Cancer (FLETEO)

"The dose of TY-9591 is 160 mg once daily. A cycle of treatment is defined as 21 days of once daily treatment.~Number of Cycles: as long as patients are continuing to show clinical benefit, as judged by the Investigator, and in the absence of discontinuation criteria."

"The dose of placebo Osimertinib is 80 mg once daily. A cycle of treatment is defined as 21 days of once daily treatment.~Number of Cycles: as long as patients are continuing to show clinical benefit, as judged by the Investigator, and in the absence of discontinuation criteria."

"The dose of Osimertinib is 80 mg once daily. A cycle of treatment is defined as 21 days of once daily treatment.~Number of Cycles: as long as patients are continuing to show clinical benefit, as judged by the Investigator, and in the absence of discontinuation criteria."

"The dose of placebo TY-9591 is 160 mg once daily. A cycle of treatment is defined as 21 days of once daily treatment.~Number of Cycles: as long as patients are continuing to show clinical benefit, as judged by the Investigator, and in the absence of discontinuation criteria."