STC-15 as a Part of Combination Therapy With Toripalimab in Selected Advanced Cancers

Inclusion Criteria

• •Estimated life expectancy ≥ 3 months.
• •ECOG performance status 0 or 1.
• •Measurable disease according to RECIST v1.1 as assessed by the local site investigator/radiology.
• •Documented radiologic assessment of progression on the prior therapy before study entry.
• •Have the ability to swallow, retain, and absorb oral medication.
• •NSCLC (when applicable): Participants with AGAs (actionable genetic alterations) must have received targeted therapy unless contraindicated. Participants must not have received more than three previous lines of systemic treatment for unresectable locally advanced or metastatic disease. This must include at least a prior anti-PD-1/L1 alone or in combination with chemotherapy. Participants must have disease progression on prior anti-PD-1/L1.
• •HNSCC (when applicable): Participants must have progressed on following prior lines: 2L or 3L recurrent/metastatic disease; regardless of PD-L1 score. Participants must not have received more than three previous lines of systemic treatment for unresectable locally advanced or metastatic disease. This must include at least a prior anti-PD-1/L1 alone or in combination with chemotherapy.
• •Endometrial (when applicable): Participants must not have received more than three previous lines of systemic treatment for unresectable locally advanced or metastatic disease. This must include at least a prior anti-PD-1/L1 alone or in combination with chemotherapy. Participants must have disease progression on prior anti-PD-1/L1
• •Melanoma (when applicable): Participants must not have received more than three previous lines of systemic treatment for unresectable locally advanced or metastatic disease. This must include at least a prior anti-PD-1/L1 alone or in combination with chemotherapy. Participants must have disease progression on prior anti-PD-1/L1.