Phase 1 Study Evaluating Sigvotatug Vedotin Alone and with Pembrolizumab, With or Without Chemotherapy, in Adults With Advanced Solid Tumors

What this Trial Is About

Researchers are evaluating a drug called sigvotatug vedotin SGN-B6A alone and in combination with pembrolizumab, with or without chemotherapy, to assess its safety and effects in people with advanced solid tumors. This Phase 1 study aims to determine the side effects and whether sigvotatug vedotin works to treat various solid tumors including lung, head and neck, breast, esophageal, skin, pancreatic, bladder, cervical, gastric, and ovarian cancers. The study is divided into four parts to explore dosage, safety, and combination treatments. Participants may receive sigvotatug vedotin alone or combined with pembrolizumab, sometimes alongside chemotherapy drugs carboplatin or cisplatin, depending on the study part. Part A focuses on finding the right dose of sigvotatug vedotin. Part B uses this dose to further test safety and effectiveness. Parts C and D study the drug combined with pembrolizumab and possibly chemotherapy in different tumor types and treatment settings, including people who have not previously received treatment. Treatments are given intravenously, with pembrolizumab administered every 3 or 6 weeks and chemotherapy every 3 weeks. During the study, participants undergo tumor biopsies, clinical evaluations, and monitoring for side effects, including blood tests and safety assessments. Researchers track adverse events, lab abnormalities, and dose-limiting toxicities up to 30-37 days after treatment, with some follow-up extending up to 3 years. They also measure tumor response using standard criteria and monitor survival and drug levels in the body. Participants will have regular visits for treatment and assessments throughout the study duration, which may last several years.

A Study of Sigvotatug Vedotin in Advanced Solid Tumors