TROPION-Lung08: Study of Dato-DXd Plus Pembrolizumab vs Pembrolizumab Alone in the First-line Treatment of Subjects With Advanced or Metastatic NSCLC Without Actionable Genomic Alterations

Overall Survival (OS) is defined as the time from randomization to death due to any cause.

PFS is defined as the time from randomization to the first documented radiographic disease progression or death due to any cause, whichever occurs first, assessed by BICR per Response Evaluation Criteria in Solid Tumors (RECIST), Version 1.1.

Progression-free Survival (PFS) is defined as the time from randomization to the first documented radiographic disease progression or death due to any cause, whichever occurs first, assessed by the Investigator per RECIST Version 1.1.

Progression-free Survival 2 (PFS2) is defined as the time from date of randomization to the first documented disease progression on next-line therapy or death due to any cause, whichever occurs first.

Objective Response Rate (ORR) is defined as the proportion of participants who achieved a best overall response (BOR) of confirmed complete response (CR) or confirmed partial response (PR), assessed by BICR and by the Investigator per RECIST Version 1.1.

Duration of Response (DoR) is defined as the time from the date of the first documentation of objective response (confirmed CR or confirmed PR) to the date of the first radiographic disease progression or death due to any cause, whichever occurs first, assessed by BICR and by the Investigator per RECIST Version 1.1.

Time to Response (TTR) is defined as the time from randomization to the date of the first documentation of objective response (confirmed CR or confirmed PR) in responding participants, assessed by BICR and by the Investigator per RECIST Version 1.1.

Disease Control Rate (DCR) is defined as the proportion of participants who achieved a BOR of confirmed CR, confirmed PR, or stable disease (SD), assessed by BICR and by the Investigator per RECIST Version 1.1.

Time to Deterioration (TTD) is defined as the time from randomization to first onset of a ≥10-point increase in cough, chest pain, or dyspnea, confirmed by a second adjacent ≥10-point increase from randomization in the same symptom, or confirmed by death within 21 days of a ≥10-point increase from randomization, assessed the European Organization for Research and Treatment of Cancer Lung cancer module (EORTC-QLQ-LC13).

A TEAE is defined as an AE with a start or worsening date on or after the start date of study treatment until 37 days after the end date of study treatment.

The immunogenicity of Dato-DXd in combination with pembrolizumab will be assessed.