A Study to Learn About the Study Medicine Called PF-08046054/SGN-PDL1V Versus Docetaxel in Adult Participants With Previously-Treated Programmed Cell Death Ligand 1 (PD-L1) Positive Non-Small-Cell Lung Cancer (NSCLC)
* The participant is on a stable dose of ≤10 mg/day of prednisone or equivalent for at least \>14 days prior to randomization (if requiring steroid treatment).
* No clinical or radiographic progression in the CNS following CNS-directed definitive radiotherapy and/or surgery.
* Time since CNS-directed treatment is ≥28 days prior to randomization.
Participants with a history of leptomeningeal metastasis are excluded.
Prior treatment with an anti-PD-L1 agent (where indicated per protocol) within 5 half-lives.
Previous receipt of an MMAE-containing agent or prior docetaxel.
You may not be if
PD-L1 expression on ≥1% of tumor cells based on local immunohistochemistry (IHC) testing with an assay utilizing the anti-PD-L1 monoclonal antibody clones 22C3 or SP263.
Participants who have NSCLC with known AGAs are permitted.
Able to provide any of the following tumor tissues for biomarker analysis:
* Archival specimen (preferably collected within 12 months after the last anticancer therapy) (see laboratory manual for details); or
* De novo biopsy from a tumor lesion, if medically feasible.
Participants must have received the following therapies and progressed during or relapsed after receiving their most recent prior therapy, or have been intolerant to their most recent therapy:
Participants with no known AGAs must fulfill 1 of the following conditions:
Received a platinum-based combination therapy for the treatment of metastatic or recurrent disease, and unless contraindicated, a PD-(L)1 monoclonal antibody (concurrently or sequentially with platinum-based chemotherapy).
Experienced disease progression within 6 months of the last dose of platinum-based chemotherapy in the adjuvant, neoadjuvant, or chemoradiotherapy setting and received a PD-(L)1 monoclonal antibody at any time during the course of treatment.
Participants with known AGAs (eg, EGFR mutations, ALK translocations, or other relevant actionable mutations) must fulfill the following conditions:
Must have received at least 1 relevant AGA-targeted therapy if locally available and, in the opinion of the investigator, additional AGA-targeted therapy is not in the best interest of the participant
Received a platinum-based combination therapy for the treatment of metastatic or recurrent disease, or experienced disease progression within 6 months of the last dose of platinum-based chemotherapy in the adjuvant, neoadjuvant, or chemoradiotherapy setting.
May have received PD-(L)1 monoclonal antibody (concurrently or sequentially with platinum-based chemotherapy).
History of another malignancy within 3 years before the first dose of PF-08046054, or any evidence of residual disease from a previously diagnosed malignancy. Exceptions are malignancies with a negligible risk of metastasis or death (eg, 5-year overall survival \[OS\] ≥90%), such as adequately treated carcinoma in situ of the cervix, non-melanoma skin carcinoma, localized prostate cancer, ductal carcinoma in situ, or Stage I uterine cancer.
Clareo Health | A Study to Learn About the Study Medicine Called PF-08046054/SGN-PDL1V Versus Docetaxel in Adult Participants With Previously-Treated Programmed Cell Death Ligand 1 (PD-L1) Positive Non-Small-Cell Lung Cancer (NSCLC)