Immunome Announces First Patient Dosed in Phase 1 Trial Evaluating IM-3050, an FAP-Targeted Radioligand Therapy, in Patients with FAP-Expressing Advanced Solid Tumors

On July 20, 2026 Immunome, Inc. (Nasdaq: IMNM), a biotechnology company committed to developing first-in-class and best-in-class targeted cancer therapies, reported that the first patient has been dosed in the Phase 1, first-in-human trial of IM-3050, an investigational FAP-targeted radioligand therapy being evaluated in patients with FAP-expressing advanced solid tumors.

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"FAP is a high-potential target with expression in 75% of solid tumors," said Bob Lechleider, M.D., Chief Medical Officer of Immunome. "We believe an optimized radioligand therapy is well-suited to FAP’s intriguing biology. IM-3050 is designed to deliver radioactive lutetium-177 directly to FAP-expressing cells, and we look forward to evaluating its potential in patients with advanced solid tumors."

The Phase 1 trial is an open-label, multicenter dose escalation and expansion study designed to determine the safety, tolerability, dosimetry, pharmacokinetics, and preliminary anti-tumor activity of IM-3050 in participants with FAP-expressing advanced solid tumors. The dose escalation portion of the study will evaluate escalating repeated doses of IM-3050 to determine the maximum tolerated dose and/or recommended expansion dose; the expansion portion is designed to further evaluate safety and tolerability at the candidate recommended dose.

About IM-3050

IM-3050 is an investigational lutetium-177 radioligand therapy targeting fibroblast activation protein (FAP), which is broadly expressed on cancer-associated fibroblasts in the tumor microenvironment. IM-3050 is designed to deliver radioactive lutetium-177 directly to FAP-expressing cells, where emitted beta particles may damage or kill nearby tumor cells through a bystander effect.

(Press release, Immunome, JUL 20, 2026, View Source [SID1234669333])