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Leukemia publishes preclinical development results of CAR-T therapy GYA01 for acute myeloid leukemia (AML) and T-cell acute lymphoblastic leukemia (T-ALL) Gyala secures €3 million financing from Invivo Partners, Nara Capital and CDTI Innvierte to launch a Phase I trial in AML patients in H2 2025 BARCELONA, Spain, Sept. 15, 2025 /PRNewswire/ -- Gyala Therapeutics, a biotechnology company developing next-generation immunotherapies for blood cancers, announced the publication of preclinical results demonstrating the efficacy of its CAR-T therapy, GYA01, in Leukemia. The study is the first to show preclinical data of CAR-T cells targeting the CD84 protein, validating GYA01 as a promising therapy for AML and T-ALL and positioning CD84 as a novel target with broad potential across hematological cancers. Continue Reading From left to right, Dr. Nela Klein-González and Dr. Manel Juan (corresponding authors), Claudio Santos, PhD (CEO of Gyala Therapeutics), and Lorena Perez, PhD (first author of the study) AML represents about 30% of adult leukemias, with roughly 145,000 new cases annually worldwide. While chemotherapy induces remission in many patients, nearly half relapse. T-ALL, though rare, accounts for 15% of pediatric ALL and up to 25% in adults. Children often respond well to chemotherapy, but adult survival remains only ~40%. For relapsed or refractory patients, therapeutic options are extremely limited. Key preclinical findings of GYA01: Strong and specific cytotoxicity against AML, T-ALL, and aggressive B-cell lymphoma cell lines, as well as primary patient samples. Significant efficacy in animal models, eradicating disease and prolonging survival. Robust expansion from both healthy donor and patient T cells, with a favorable memory phenotype and no gene editing required to avoid fratricide. The study confirms that CD84 is consistently overexpressed in AML and T-ALL, including high-risk subtypes such as TP53-mutated or MECOM-rearranged AML. CD84 is also highly expressed in chronic lymphocytic leukemia and aggressive B-cell lymphomas, with limited expression in healthy tissues—making it a compelling target beyond the B-cell malignancies where CAR-Ts are currently approved. "The preclinical evidence confirms that GYA01 is a highly promising CAR-T therapy, supports CD84 as a pan-hematological target, and establishes a strong foundation for advancing to clinical trials," said Dr. Nela Klein-Gonzalez, Chief Medical Officer of Gyala Therapeutics and lead author of the publication. Claudio Santos, PhD, CEO of Gyala Therapeutics, added: "Our next goal is to launch a clinical trial of GYA01 in AML patients at Hospital Clinic Barcelona and Hospital La Fe in Valencia, bringing this therapy to patients with aggressive leukemias who lack alternatives." The program leverages the expertise of Hospital Clinic Barcelona, a pioneer in CAR-T therapies under the leadership of Dr. Manel Juan, as well as key contributions from Hospital La Fe, which performed CD84 expression analyses in AML and healthy bone marrow samples. To initiate the Phase I trial, Gyala secured a €3 million financing round with participation from Invivo Partners (its founding investor), Nara Capital, and CDTI Innovación through the Innvierte program. This investment exemplifies how collaboration between seasoned investors and Spain's academic excellence can translate breakthrough science into clinical innovation. Academic foundations behind GYA01 Founded in 2020 as a spin-off of Hospital Clinic Barcelona and the August Pi i Sunyer Biomedical Research Institute (IDIBAPS), Gyala builds on more than a decade of CAR-T research led by Dr. Juan. The institutions have treated over 500 patients with CAR-T therapies, including ARI-0001 (for adult ALL) and ARI-0002h (for multiple myeloma), both approved in Spain under hospital exemption. This expertise underpins the development of GYA01 and highlights Spain's leadership in academic-to-clinic CAR-T innovation. About Gyala Therapeutics Gyala Therapeutics is developing next-generation immunotherapies for hematological cancers with high unmet need. Its lead program, GYA01, is a first-in-class CAR-T therapy targeting CD84, a protein overexpressed in AML, T-ALL, and other blood cancers. To date, Gyala has raised around €8 million through Invivo Partners, Nara Capital, and CDTI Innvierte, as well as national innovation programs including NEOTEC and Public-Private Collaboration Projects. More information at: . Photo: Logo: Investor contact: Claudio Santos, PhD [email protected] +34602672187 Media contact: Gemma Escarré Comms [email protected] +34667761524 SOURCE Gyala Therapeutics WANT YOUR COMPANY'S NEWS FEATURED ON PRNEWSWIRE.COM? 440k+ Newsrooms & Influencers 9k+ Digital Media Outlets 270k+ Journalists Opted In GET STARTED