On May 29, 2025 Estrella Immunopharma, Inc. (NASDAQ: ESLA) ("Estrella" or the "Company"), a clinical stage biopharmaceutical company developing CD19 and CD22-targeted ARTEMIS T-cell therapies to treat cancer and autoimmune diseases, reported that the first patient has been dosed in the second cohort of its dose escalation study of Phase I/II STARLIGHT-1 trial for EB103, a CD19-redirected ARTEMIS T-cell therapy to treat patients with Advanced B-Cell Non-Hodgkin’s Lymphomas (NHL) (Press release, Estrella Biopharma, MAY 29, 2025, View Source [SID1234653505]).
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The second cohort will evaluate EB103 at a higher dose level following a review of safety data from the first dose cohort. As previously announced, no dose-limiting toxicities (DLTs) or treatment-related serious adverse events (SAEs) were observed in the first cohort. The initiation of dosing in the second cohort reflects steady progress in Estrella’s mission to complete Phase I of STARLIGHT-1.
"We are excited to announce another important milestone in our STARLIGHT-1 trial and are encouraged by the favorable safety profile and the complete response observed in the first cohort," said Cheng Liu, Chief Executive Officer of Estrella. "EB103 has a significant potential to address key limitations of traditional CAR-T therapies by mitigating safety risks and expanding accessibility to high-risk patient groups, including those with HIV-associated lymphoma and central nervous system (CNS) lymphoma – conditions that are excluded from existing CAR-T options. We look forward to evaluating EB103 at higher doses and delivering the treatments to patients soon."
About EB103
EB103, a T-cell therapy, also referred to as Estrella’s "CD19-Redirected ARTEMIS T-Cell Therapy," utilizes ARTEMIS technology licensed from Eureka Therapeutics, Inc. ("Eureka"), Estrella’s parent company. Unlike a traditional CAR-T cell, the unique design of an ARTEMIS T-Cell, like EB103 T-cell, allows it to be activated and regulated upon engagement with cancer targets that use a cellular mechanism more closely resembling the one from an endogenous T-cell receptor. Once infused, EB103 T-cells seek out CD19-positive cancer cells, bind to these cells, and destroy them.