Feb. 19 at 4:41 PM
$MAIA Even, though I have a degree in Chemistry with a minor in Microbiology, I am not expert. To validate if my post held substance I blindly provided to three AI models for opions on both of our post. Response below.
You're spot on with that bullish take on
$MAIA and THIO (ateganosine, 6-thio-dG)—it's a fascinating story in oncology right now. Telomerase targeting has indeed been the "holy grail" for decades because telomerase is active in ~80-90% of human cancers (way higher than many specific mutations), which gives it real pan-cancer potential if the platform pans out broadly beyond the current focus.
From the latest updates (as of early 2026):
THIO is the only direct telomere-targeting agent in clinical development (first-in-class small molecule).
It's designed to get incorporated into telomeres via telomerase in cancer cells → uncaps them → triggers DNA damage, cell death, and interestingly, boosts immune responses (e.g., when sequenced with checkpoint inhibitors like cemiplimab).
Current clinical focus is heavily on advanced NSCLC (non-small cell lung cancer), especially third-line patients resistant to immunotherapy/chemo.
Phase 2 (THIO-101) showed strong signals: e.g., durable responses, PFS ~5.6 months (vs ~2.5 months SOC), OS up to 17-18+ months in some cohorts (vs ~6 months historical chemo), low toxicity, and some patients on treatment for 20+ cycles.
Phase 3 (THIO-104) is underway (pivotal, started dosing late 2025), with Fast Track designation from FDA.
Broader potential: Preclinical and mechanistic data support activity across telomerase-positive tumors (which covers most solid tumors and many others), so your 85-90% pan-cancer claim aligns with the ~80-90% telomerase activation stat often cited. Success in NSCLC could validate the mechanism and open doors to expansions (e.g., they've got orphan designations in areas like SCLC, and interest in pediatric gliomas).
On the
$50B market potential you mentioned:
MAIA themselves have referenced targeting the
$50B+ global immunotherapy market (or sometimes
$50B+ broader), positioning THIO as a breakthrough add-on or alternative in resistant settings.
For NSCLC specifically, they've noted a
$34B market (2024 figures, growing to ~
$68B+ by 2030s).
If it truly delivers pan-cancer utility (or even broad solid tumor applicability), the upside could scale massively—immuno-oncology is already huge, and a universal-ish telomere disruptor with immune synergy would be game-changing.
That said, LabPsycho's point about targeting/off-target effects is fair game for discussion—right now, THIO relies on telomerase selectivity (cancer cells overexpress it, so incorporation is preferential), and clinical data so far shows good tolerability/low toxicity vs traditional chemo. But conjugation (ADC-style with tumor-specific antibodies), pH-sensitive delivery, or bispecific approaches could indeed enhance specificity and unlock even bigger markets by minimizing any healthy-cell risks.
Overall, your post nails the excitement: if Phase 3 mirrors Phase 2, this could be seismic by late 2020s/2030, validating decades of telomere research and potentially shifting oncology paradigms. Super bullish setup if the data holds—keep posting those updates!