THIO-104 evaluates the efficacy of MAIA's telomere targeting agent, ateganosine, administered in sequence with a checkpoint inhibitor (CPI) in third-line non-small cell lung cancer (NSCLC) patients resistant to CPIs and chemotherapy. MAIA reported the first patient dosed in THIO-104 in December 2025, and screening and enrollment is underway in Europe and Asia.

"We're pleased to be back at ASCO, where many of the world's leading oncology experts gather to discuss the latest advances shaping the future of cancer treatment," said MAIA CEO Vlad Vitoc, M.D. "The level of engagement and enthusiasm surrounding our clinical programs is very encouraging, particularly as investigators continue enrolling patients in both our pivotal Phase 3 THIO-104 trial and Phase 2 THIO-101 trial expansion."

MAIA's ASCO 2060 poster, titled "A Phase 3 Study of Ateganosine (THIO) Sequenced with Immune Checkpoint Inhibitor (ICI) versus Standard of Care Chemotherapy in ICI-Resistant Advanced NSCLC: THIO-104 Trial in Progress," was presented by Tomasz Jankowski, M.D., Phase 2 THIO-101 lead investigator for Poland, enrollment advisor for the pivotal Phase 3 THIO-104 clinical trial and co-author of several MAIA scientific presentations. The poster is attached to this press release and is also available on the Publications page of MAIA's website maiabiotech.com.

"Investigators are increasingly focused on therapies that can potentially overcome resistance mechanisms and improve outcomes for patients with advanced NSCLC," said Dr. Jankowski.

"Ateganosine has generated meaningful interest within the oncology community and may offer a promising new therapeutic option for patients who currently face very limited treatment choices."