On March 19, 2025 MAIA Biotechnology, Inc., (NYSE American: MAIA) ("MAIA", the "Company"), a clinical-stage biopharmaceutical company developing targeted immunotherapies for cancer, reported that the United States Adopted Names (USAN) Council has approved "ateganosine" as the nonproprietary (generic) name for its lead molecule THIO, a telomere-targeting anticancer agent in clinical development as a first-in-class treatment for advanced non-small cell lung cancer (NSCLC) (Press release, MAIA Biotechnology, MAR 19, 2025, View Source [SID1234651273]).
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The USAN Council is responsible for selecting standardized, informative and unique nonproprietary (generic) drug names. It is made up of experts from the American Medical Association (AMA), the U.S. Pharmacopeial Convention (USP) and the U.S Food and Drug Administration (FDA).
"The designation of a new nonproprietary name for THIO is a key step along our development and regulatory pathway as we move forward with Phase 2 and 3 clinical trials," said Vlad Vitoc, M.D., CEO of MAIA. "We chose a name inspired by the mechanism of action of our molecule: altering telomeric guanosine of the cancer cells. The generic name ateganosine is a unique and consistent identity that will support clear communication between healthcare providers, patients and researchers."
Generic drug names are used in product information, drug regulation, labelling and prescribing as for promotional materials and scientific literature.
MAIA will retain the name THIO in its clinical trial designations (THIO-101, THIO-102, THIO-103, THIO-104).
About Ateganosine
Ateganosine (THIO, 6-thio-dG or 6-thio-2’-deoxyguanosine) is a first-in-class investigational telomere-targeting agent currently in clinical development to evaluate its activity in Non-Small Cell Lung Cancer (NSCLC). Telomeres, along with the enzyme telomerase, play a fundamental role in the survival of cancer cells and their resistance to current therapies. The modified nucleotide 6-thio-2’-deoxyguanosine induces telomerase-dependent telomeric DNA modification, DNA damage responses, and selective cancer cell death. Ateganosine-damaged telomeric fragments accumulate in cytosolic micronuclei and activates both innate (cGAS/STING) and adaptive (T-cell) immune responses. The sequential treatment with ateganosine followed by PD-(L)1 inhibitors resulted in profound and persistent tumor regression in advanced, in vivo cancer models by induction of cancer type–specific immune memory. Ateganosine is presently developed as a second or later line of treatment for NSCLC for patients that have progressed beyond the standard-of-care regimen of existing checkpoint inhibitors.