Potential breakthrough therapeutic targets $50B+ global immunotherapy market1

CHICAGO, March 31, 2026 (GLOBE NEWSWIRE) -- MAIA Biotechnology, Inc. (NYSE:MAIA) ("MAIA", the "Company"), a clinical-stage biopharmaceutical company focused on developing targeted immunotherapies for cancer, today announced highlights from a poster presented on March 27, 2026, at the European Lung Cancer Congress 2026 (ELCC), a premier thoracic oncology forum held March 25-28, 2026, in Copenhagen, Denmark.

MAIA reports overall survival (OS) beyond two years for eight patients treated with ateganosine sequenced with cemiplimab in Parts A and B of its ongoing Phase 2 THIO-101 clinical trial in non-small cell lung cancer (NSCLC). The patients did not receive subsequent lines of therapy.

The eight patients featured in the poster include:

  • 1 patient in third-line (3L) therapy with survival of 33 months. Expected survival in this heavily pre-treated population is 5.8 months.2
  • 4 patients in 2L therapy with survival over 30 months. Documented OS for standard of care treatment (chemotherapy or checkpoint inhibitors alone) in second-line (2L) therapy is 10.5 months.3
  • All patients have failed previous treatment (prior to THIO-101) with a checkpoint inhibitor (CPI) alone.
  • All patients completed 29-34 cycles of therapy, except for 1 patient who completed 2 cycles of therapy with survival follow-up of 725 off therapy.
  • 5 of the 8 patients have survival follow-up ongoing.