GT Biopharma Inc (GTBP)

A Clinical-Stage Cancer Company Is Putting AI to Work Designing Its Next Generation of Tumor-Targeting DrugsJune 30, 2026 9:00 AM
PR Newswire (US) Issued on behalf of GT Biopharma, Inc.GT Biopharma, Inc. (NASDAQ: GTBP) says newly implemented AI-based tools are accelerating its drug discovery and engineering, with multiple new development candidates expected to move into pre-IND development in 2027 and potential indications expanding beyond oncology.USA News Group News CommentaryNEW YORK, June 30, 2026 /PRNewswire/ -- Drug discovery has long been a slow, expensive process of trial and error, and for a small clinical-stage company, every wasted experiment is capital it can scarcely afford. That is the backdrop for a recent update from GT Biopharma, Inc. (NASDAQ: GTBP), a clinical-stage immuno-oncology company built around its proprietary natural killer (NK) cell engager platform. On June 1, 2026, the company said it has implemented artificial-intelligence-based tools across its discovery and protein-engineering work, and that the resulting efficiency gains are expected to push multiple new development candidates into pre-IND development in 2027.  Key TakeawaysGT Biopharma (NASDAQ: GTBP) reported increased integration of AI-based tools across the discovery and engineering of its tumor-targeting NK cell engagers and multi-domain proteins, aiming to accelerate development while reducing cost.The company says the approach reduces reliance on trial-and-error experimentation, shortens timelines, and increases the likelihood that candidates show robust binding and functional activity before advancing.GT Biopharma anticipates multiple new development candidates entering pre-IND development in 2027, with potential targets and indications expanding beyond oncology.The update arrives as its clinical programs advance: GTB-3650 (Phase 1, CD33-expressing blood cancers) and GTB-5550 (Phase 1, B7-H3-expressing solid tumors), with the first GTB-5550 patient dosed in May 2026.Other publicly traded names across NK-cell, immune-engager, and AI-discovery approaches include Nkarta (NASDAQ: NKTX), Fate Therapeutics (NASDAQ: FATE), Compass Therapeutics (NASDAQ: CMPX), and Recursion (NASDAQ: RXRX), each distinct, and none a proxy for GT Biopharma.Putting AI to Work on the Hardest Part of Drug DesignThe core of the announcement is that GT Biopharma is using AI not as a marketing veneer but at the bench, in the actual design of its molecules. According to the company, AI-guided sequence and structural analyses are used to identify new candidate tumor-targeting engagers and multi-domain proteins with favorable binding, stability, and developability profiles, allowing the team to prioritize early on the molecules most likely to succeed beyond the discovery stage. In a field where the overwhelming majority of early candidates fail, screening computationally before committing lab resources is where time and money are saved.The company describes the tools doing more than just screening. They are also used to inform rational engineering, optimizing the orientation of protein domains, the design of the linkers that connect them, and the overall spatial architecture of a molecule, with the goals of enhancing binding, supporting productive immune-synapse formation, and minimizing structural liabilities that can hurt potency, manufacturability, or consistency. In downstream work, AI-based structural modeling is applied to predict surface exposure, steric compatibility, and assay performance, helping refine constructs before resource-intensive laboratory and animal studies. The throughline is the same: do more of the hard thinking in silico, so that the expensive, slow physical experiments are reserved for the most promising designs.What GT Biopharma Actually Builds: the TriKE PlatformTo understand why this matters for GT Biopharma specifically, it helps to know what the company makes. GT Biopharma is a clinical-stage biopharmaceutical company focused on the development and commercialization of immuno-oncology therapeutic products based on its proprietary TriKE® NK cell engager platform. As the company describes it, the TriKE® platform is designed to harness and enhance the cancer-killing abilities of a patient's immune system's natural killer cells. GT Biopharma has an exclusive worldwide license agreement with the University of Minnesota to further develop and commercialize therapies using TriKE® technology.Designing these multi-domain proteins is exactly the kind of complex, multi-variable engineering problem where computational tools can have an outsized effect. Each TriKE has to bind the right targets with the right strength, fold and remain stable, manufacture consistently, and form a functional connection between immune cell and tumor. Optimizing all of those properties at once, by hand and by trial and error, is painstaking. That is the work GT Biopharma now says it is accelerating with AI.A Bridge to the Clinical StoryThe discovery update does not exist in isolation. It comes as GT Biopharma advances two TriKE candidates through Phase 1 clinical trials. GTB-3650 is being evaluated in patients with relapsed or refractory CD33-expressing hematologic malignancies, including refractory acute myeloid leukemia and high-risk myelodysplastic syndrome. GTB-5550, which targets the protein B7-H3 on solid tumors, received FDA clearance of its investigational new drug application earlier in 2026, and the company announced that its first patient was dosed in the Phase 1 dose-escalation basket trial in May 2026. Executive Chairman and CEO Michael Breen tied the two threads together, stating that as the company continues "to demonstrate clinical execution acumen with GTB-3650 and GTB-5550 advancing through Phase 1 this year, we are now looking forward to our next-generation assets with potential for shorter development timeliness, increased probability of clinical success, and lower development costs in the coming years."Breen also characterized the shift in plain terms, saying the company has "seen a marked acceleration in our discovery productivity following recent initiatives implementing AI-based technologies, which have been adapted to improve our drug engineering capabilities." In other words, the message to investors is that the same company executing in the clinic today is simultaneously trying to build a deeper, cheaper, faster-moving pipeline behind those lead programs.The Honest Risk PictureNone of this removes the substantial risks that come with a micro-cap, clinical-stage biotech, and GT Biopharma is candid about them in its own disclosures. Pre-IND candidates targeted for 2027 are early, and AI-assisted design does not guarantee a molecule will prove safe or effective in humans. The company's forward-looking statements explicitly flag its ability to continue as a going concern, its need for additional capital, the possibility of clinical-trial delays, the risk that products fail to meet safety or efficacy endpoints, and the risk that its common stock could be delisted if it cannot maintain listing requirements. As of its first-quarter 2026 report, the company described a cash position in the single-digit millions, sufficient by its own account to fund operations into the latter part of the year. That financing reality is the central caveat for any investor, and it is characteristic of the high-risk, binary nature of early-stage drug development, where most candidates that enter trials never reach approval.The Public Companies Around the ThemeGT Biopharma sits within a broader field of companies pursuing NK-cell, immune-engager, and AI-driven approaches to drug development. These names are referenced for context only; each pursues a different strategy, sits at a different stage, several are far larger and better capitalized, and none is a proxy for GT Biopharma or implies any partnership or comparable outcome. Nkarta (NASDAQ: NKTX) is a dedicated NK-cell therapy developer that has increasingly oriented its engineered NK candidates toward autoimmune disease as well as cancer, underscoring the same "beyond oncology" potential GT Biopharma references. Fate Therapeutics (NASDAQ: FATE) is among the more established NK and induced-pluripotent-stem-cell platform companies, representing the better-resourced end of the cell-therapy spectrum.Compass Therapeutics (NASDAQ: CMPX) offers a window into the broader bispecific and immune-engager landscape, developing antibody-based therapeutics that direct immune activity against tumors; while its modalities differ from TriKE, it belongs to the same conceptual family of engager formats and recently reported a stronger balance sheet and late-stage data progress. Recursion (NASDAQ: RXRX) approaches the theme from the AI angle that GT Biopharma's update highlights, pairing large proprietary datasets and machine learning with drug discovery and major pharmaceutical partnerships, while remaining clinical-stage and pre-profit. Together these names illustrate two powerful currents, NK-directed immunotherapy and AI-enabled drug design, converging on the same goal of better, faster, cheaper medicines, even as each company's fate rests on its own science and execution.The Bottom LineGT Biopharma's AI update is not a clinical result, and it should not be mistaken for one. What it represents is a strategic bet that the company can use modern computational tools to build its next wave of candidates faster and at lower cost, behind two clinical programs already moving through Phase 1. For a capital-constrained micro-cap, efficiency in discovery is not a luxury but a survival strategy, and the promise of pre-IND candidates in 2027 gives investors a concrete future marker to track. Whether the AI-driven approach translates into better molecules and, ultimately, successful therapies remains to be proven in the lab and the clinic. For now, the markers worth watching are the continued progress of GTB-3650 and GTB-5550 through Phase 1, the company's financing path, and the first evidence that its AI-designed candidates can advance as promised. More detail is available in the company's June 1, 2026 announcement.SIGNAL OVER NOISESignal over noise. Biotech, immuno-oncology, and AI-drug-discovery headlines move fast, and the crowd often moves first. Eagle Eye is a real-time investor signal-intelligence platform that surfaces sentiment shifts, news flow, and trending tickers as they happen, so you see the move forming instead of reading about it later. See it at eagle-eye.dev.CONTACT
USA News Group
info@usanewsgroup.comSOURCES[1] GT Biopharma, Inc. (NASDAQ: GTBP), "GT Biopharma Provides Update on Pipeline Discovery Activities from Newly Implemented AI-Based Technological Initiatives" (GlobeNewswire, June 1, 2026). Available at: https://www.gtbiopharma.com/news-media/press-releases/detail/310/gt-biopharma-provides-update-on-pipeline-discovery.
[2] GT Biopharma, Inc., "GT Biopharma Reports First Quarter 2026 Financial Results" (May 15, 2026; cash position, GTB-3650 Cohort 4, pipeline updates).
[3] GT Biopharma, Inc., "First Patient Dosed in Phase 1 Trial of GTB-5550" (May 14, 2026) and "FDA Clearance of IND for GTB-5550" (February 3, 2026).
[4] Nkarta, Inc. (NASDAQ: NKTX), Q1 2026 results and corporate highlights (engineered NK therapies; autoimmune focus), May 12, 2026.
[5] Fate Therapeutics, Inc. (NASDAQ: FATE), corporate and pipeline disclosures, 2026.
[6] Compass Therapeutics, Inc. (NASDAQ: CMPX), Q1 2026 results (~US$209M cash; tovecimig Phase 2/3 data), May 5, 2026.
[7] Recursion Pharmaceuticals, Inc. (NASDAQ: RXRX), corporate and AI-platform disclosures, 2026.DISCLAIMERNothing in this publication should be considered as personalized financial advice. We are not licensed under securities laws to address your particular financial situation. No communication by our employees to you should be deemed as personalized financial advice. Please consult a licensed financial advisor before making any investment decision. This is a digital media distribution and is neither an offer nor recommendation to buy or sell any security. We hold no investment licenses and are thus neither licensed nor qualified to provide investment advice. The content in this report or email is not provided to any individual with a view toward their individual circumstances.USA News Group is a wholly-owned subsidiary of Market IQ Media Group Limited, accompany incorporated under the laws of Ireland ("MIQL"). This article is being distributed by ISA News Group on behalf of MIQL. MIQL has been paid a fee for GT Biopharma, Inc. advertising and digital media from Creative Direct Marketing Group ("CDMG"). This compensation constitutes a conflict of interest as to our ability to remain objective in our communication regarding the profiled company. Because of this conflict, individuals are strongly encouraged to not use this article or email as the basis for any investment decision. MIQL does not own shares of GT Biopharma, Inc. but reserves the right to buy and sell shares of GT Biopharma, Inc. at any time without any further notice. There may be 3rd parties who may have shares of GT Biopharma, Inc., and may liquidate their shares which could have a negative effect on the price of the stock. We also expect further compensation as an ongoing digital media effort to increase visibility for the company; no further notice will be given, but let this disclaimer serve as notice that all material disseminated by MIQ has been reviewed and approved on behalf of GT Biopharma, Inc. by CDMG; this is a digital media distribution.While all information is believed to be reliable, it is not guaranteed by us to be accurate. Individuals should assume that all information contained in our publication is not trustworthy unless verified by their own independent research. Comparisons to other companies referenced in this publication are for contextual and illustrative purposes only and do not imply any partnership, endorsement, affiliation, or comparable financial performance. Forward-looking statements regarding exploration, development, clinical, regulatory, production, and market outcomes are subject to risks and uncertainties, and actual results may differ materially. Also, because events and circumstances frequently do not occur as expected, there will likely be differences between any predictions and actual results. Always consult a licensed investment professional before making any investment decision. Be extremely careful, investing in securities carries a high degree of risk; you may likely lose some or all of the investment.FORWARD-LOOKING STATEMENTS: This publication contains forward-looking statements, including statements regarding the expected benefits of GT Biopharma's AI-based discovery and engineering initiatives; the anticipation of multiple new development candidates entering pre-IND development in 2027; the potential expansion of targets and indications beyond oncology; the progress, timing and results of the GTB-3650 and GTB-5550 Phase 1 clinical trials; and the Company's development plans and cost and timeline expectations. Forward-looking statements are subject to significant risks and uncertainties that could cause actual results to differ materially, including, as the Company has disclosed, its ability to continue as a going concern; its need for additional capital and the uncertainty of obtaining it; the risk of clinical-trial delays; the risk that product candidates fail to achieve necessary safety and efficacy endpoints; the risk that the Company's common stock could be delisted if it fails to maintain listing requirements; and other factors detailed in the Company's filings with the SEC at www.sec.gov, including its most recent Form 10-K and subsequent Form 10-Q reports. AI-assisted design does not ensure that any candidate will prove safe or effective or receive regulatory approval. References to other companies are based on those companies' public disclosures, are provided for industry context only, and do not imply any partnership, endorsement, affiliation, or comparable performance. TriKE® is a registered trademark of GT Biopharma, Inc. Readers are cautioned not to place undue reliance on forward-looking statements, which speak only as of the date made; the publisher undertakes no obligation to update or revise them except as required by applicable law. View original content to download multimedia:https://www.prnewswire.com/news-releases/a-clinical-stage-cancer-company-is-putting-ai-to-work-designing-its-next-generation-of-tumor-targeting-drugs-302814371.html Original: A Clinical-Stage Cancer Company Is Putting AI to Work Designing Its Next Generation of Tumor-Targeting Drugs

The $13 Million Company Teaching the Immune System to Hunt CancerMay 29, 2026 9:00 AM
PR Newswire (US) Issued on behalf of GT Biopharma, Inc. (NASDAQ: GTBP)Three drugs in human trials. A platform licensed from one of the world's top cancer-research universities. A market cap smaller than a Manhattan apartment. For investors willing to look where almost no one is looking, GT Biopharma is the kind of asymmetric setup that biotech is built on.NEW YORK, May 29, 2026 /PRNewswire/ -- USA News Group Market Commentary - Start with the number that makes everyone do a double take. As of mid-May 2026, GT Biopharma (NASDAQ: GTBP) carried a market capitalization of roughly $13 million. Thirteen million. That is not a typo, and it is not a shell company. It is a clinical-stage immuno-oncology company with three separate drug candidates already dosing patients in human trials, a technology platform exclusively licensed from the University of Minnesota, and a scientific approach that the largest names in cancer immunotherapy are spending billions to pursue. See the full GT Biopharma investor breakdown at USA News Group ?That gap — between what the company is doing in the clinic and what the market is paying for it — is the entire story. Whether it closes, and in which direction, is the question every investor reading this should be weighing right now.The idea: don't build a new weapon, sharpen the one you already haveMost cancer therapies try to bolt something new onto the body — a manufactured cell, a synthetic antibody, a toxic payload. GT Biopharma's approach is different, and once you understand it, it's hard to forget.The human immune system already contains a class of cells whose entire job is to find and destroy abnormal cells: natural killer cells, or NK cells. They are the immune system's first responders, patrolling the body and killing threats without needing to be "trained" first. The problem in cancer is that tumors learn to hide from them. GT Biopharma's platform, called TriKE® — short for Tri-specific Killer Engager — is designed to drag those NK cells directly onto the tumor and switch them on.A TriKE molecule is engineered with three parts joined together. One arm grabs the NK cell by a receptor called CD16. A second arm grabs the cancer cell by a marker on its surface. And in the middle sits a molecule called IL-15, which acts like a shot of adrenaline, keeping the NK cell alive and multiplying once it's locked onto its target. The result, in concept, is elegant: you take the body's existing assassins, handcuff them to the tumor, and tell them to get to work.The platform was developed at the University of Minnesota, and GT Biopharma holds an exclusive worldwide license to develop and commercialize therapies based on it. This is not a science project the company dreamed up in isolation — it's institutional research that GTBP has the rights to turn into medicine.Why now: three shots on goal, all liveWhat changed in 2026 is that GT Biopharma stopped being a one-drug story. As of this spring, the company has advanced three TriKE candidates into the clinic — a milestone its leadership rightly calls a turning point.Track every clinical milestone on the GTBP catalyst timeline ?The lead program is GTB-3650, aimed at relapsed or refractory CD33-positive blood cancers — specifically acute myeloid leukemia (AML) and high-risk myelodysplastic syndrome (MDS), two of the most treatment-resistant cancers in oncology. It is the first TriKE built on camelid nanobody technology — antibody fragments derived from the same family as llamas and alpacas, prized for being small, stable, and able to penetrate tissue. The Phase 1 dose-escalation trial began enrolling in early 2025 and has moved methodically upward through its dose cohorts. As of the company's Q1 2026 report in May, Cohort 4 enrollment was complete with eight patients treated across the first four cohorts — and, critically, the earlier safety reviews advanced without the dose-limiting toxicities that derail so many early trials. The study can escalate through up to seven cohorts, and management has guided to a meaningful data update in the second half of 2026.The newest program is where the ambition becomes obvious. In May 2026, GT Biopharma dosed the first patient in the Phase 1 trial of GTB-5550, a TriKE targeting a protein called B7-H3. Here is why that matters: B7-H3 is expressed on a huge range of solid tumors, and in metastatic castration-resistant prostate cancer it appears in over 90% of tumors. The trial begins with a prostate-cancer-focused dose escalation, then expands into a "basket" across as many as seven solid tumor types — prostate, ovarian, breast, head and neck, non-small cell lung, pancreatic, and bladder. In the company's own framing, the solid-tumor patient population GTB-5550 targets is "orders of magnitude larger" than the blood-cancer population of its lead drug. And GTB-5550 uses subcutaneous dosing — a simple injection rather than an infusion — which the company describes as more patient-friendly, a quiet but real commercial advantage if the drug works.Three programs. Two cancers as different as liquid and solid tumors. One underlying platform. That is the shape of a company trying to prove a technology, not just a single molecule.The market it's chasing is enormousThe backdrop here is not subtle. The global oncology market is projected to nearly double from roughly $139 billion in 2025 to about $268 billion by 2034. Solid tumors alone represent a market estimated in the hundreds of billions of dollars, and B7-H3 — GTB-5550's target — shows up across many of the most common and lethal of them. NK-cell-directed immunotherapy has become one of the most closely watched frontiers in the entire sector, precisely because it offers the prospect of harnessing the immune system with potentially fewer of the brutal side effects of conventional treatment.Why NK-cell therapy is biotech's hottest frontier — read the deep dive ?When a tiny company is pointed at a market that large, the math of asymmetry takes over. It does not require GT Biopharma to win the whole field. It requires only that one of its three shots connects — and that the market eventually notices a company priced near $13 million is playing in an arena measured in the hundreds of billions.How GT Biopharma stacks up against its NK-cell peersThe most useful way to understand GTBP's positioning is to look at the company it keeps. NK-cell and immune-engager therapy is a crowded, well-funded field — and the contrast in scale is the entire investment argument.ImmunityBio (NASDAQ: IBRX) is the proof of concept that NK-cell immunotherapy can reach the market. Its NK-activating therapy ANKTIVA is FDA-approved for bladder cancer, the company reported roughly $44 million in product revenue in Q1 2026 and held some $381 million in cash, and it is now scaling NK-cell manufacturing to billions of cells per batch. ImmunityBio is what NK-cell success looks like at commercial scale — and a reminder of the valuation gap a clinical-stage peer could theoretically narrow if its data delivers.Fate Therapeutics (NASDAQ: FATE) is the deep-pocketed platform play, engineering off-the-shelf NK and CAR-T cell therapies from induced pluripotent stem cells, with roughly $175 million in cash and a runway management has guided into 2028. Fate illustrates how richly the market will fund an NK/cell-therapy platform it believes in — a striking counterpoint to GTBP's microcap valuation.Nkarta (NASDAQ: NKTX) is the engineered-NK-cell specialist, advancing its platform into autoimmune disease and backed by a market capitalization and cash position orders of magnitude above GT Biopharma's. Nkarta shows that NK-cell companies can command substantial valuations well before commercialization, on the strength of platform potential alone.Artiva Biotherapeutics (NASDAQ: ARTV) rounds out the set as the allogeneic, off-the-shelf NK-cell developer whose lead candidate AlloNK is heading toward a Phase 3 registrational trial in refractory rheumatoid arthritis in 2026. Artiva demonstrates how far and how fast an NK-cell program can advance through the clinic — the kind of trajectory GTBP investors are betting its TriKE platform can follow.Set GT Biopharma beside those four names and the picture sharpens. They are pursuing variations of the same fundamental thesis — unleash NK cells against disease — and the market has assigned them valuations ranging from the hundreds of millions into the billions. GT Biopharma, with three candidates already in the clinic, sits near $13 million. Either the market has correctly priced a struggling microcap, or it has badly overlooked a platform company in the same arena as far larger peers. That is the bet, stated plainly.The risks, stated honestlyNo serious investor case is complete without the other side of the ledger, and GT Biopharma's is real.This is a clinical-stage company with no approved products and no product revenue. Its cash balance was approximately $9 million at the end of Q1 2026, which management expects to fund operations only through the fourth quarter of 2026 — meaning additional financing, likely dilutive to existing shareholders, is a near-certainty rather than a possibility. The stock trades well under a dollar and far below its 52-week high, and a Roth Capital analyst, while maintaining a Buy rating, cut the price target to $3 from $8 earlier this year. Phase 1 trials are designed to test safety, not to prove a drug works; the encouraging absence of dose-limiting toxicities and the early signs of NK-cell activation are genuinely positive, but they are not efficacy. Most drugs that enter Phase 1 never reach the market. And the very peers that make GTBP look cheap are also formidable competitors with vastly greater resources.In short: this is a high-risk, binary-outcome situation. It is exactly the kind of company that can multiply many times over on a single strong data readout — and exactly the kind that can be forced into painful dilution or worse if the data disappoints or the financing window closes. Both outcomes are live.The bottom lineGT Biopharma is a study in asymmetry. On one side: a roughly $13 million valuation, a sub-dollar stock, a thin cash runway, and all the risk that comes with clinical-stage biotech. On the other: three drugs dosing patients, a platform licensed from a top-tier research university, a mechanism the biggest players in immuno-oncology are validating with their own R&D budgets, and a pair of catalysts — GTB-3650 data and GTB-5550 progress — both expected in the second half of 2026.That is the setup. A company priced for failure, sitting on a platform built for something much larger, with hard data events on the calendar in a matter of months. For investors who understand that the biggest biotech returns come from the names the market has written off just before it's forced to reconsider, GT Biopharma is a story worth watching very closely between now and year-end.Get the full GTBP investor profile, pipeline, and catalyst calendar at USA News Group ?CONTACT:
USA News Group
info @therooster-2873Sources:GT Biopharma, Inc., "GT Biopharma Announces First Patient Dosed in Phase 1 Trial of GTB-5550, a B7-H3-Targeted Natural Killer (NK) Cell Engager for Solid Tumors," GlobeNewswire, May 14, 2026.GT Biopharma, Inc., "GT Biopharma Reports First Quarter 2026 Financial Results," May 15, 2026 (Cohort 4 complete, 8 patients across first four cohorts; ~$9M cash to Q4 2026; 2H 2026 updates).GT Biopharma, Inc., IND submission / pipeline overview — TriKE mechanism (camelid anti-CD16 / scFv anti-CD33 / IL-15), GTB-3650 dose-escalation design (up to 7 cohorts, ~14 patients), GTB-5550 design and B7-H3 >90% in mCRPC; gtbiopharma.com product pipeline.Roth Capital analyst note (Jonathan Aschoff), price target revised to $3 (Buy), 2026.Global Market Insights Inc. oncology market size ($139.4B 2025 ? $268.3B 2034); Data Bridge Market Research solid-tumor market context.ImmunityBio (NASDAQ: IBRX) Q1 2026 results and NK-cell manufacturing release, 2026.Fate Therapeutics (NASDAQ: FATE) Q1 2026 results (runway into 2028), May 13, 2026.Nkarta (NASDAQ: NKTX) corporate/clinical disclosure, 2026.Artiva Biotherapeutics (NASDAQ: ARTV) corporate disclosure / AlloNK Phase 3 plan, 2026.DISCLAIMER:Nothing in this publication should be considered as personalized financial advice. We are not licensed under securities laws to address your particular financial situation. No communication by our employees to you should be deemed as personalized financial advice. Please consult a licensed financial advisor before making any investment decision. This is a digital media distribution and is neither an offer nor recommendation to buy or sell any security. We hold no investment licenses and are thus neither licensed nor qualified to provide investment advice. The content in this report or email is not provided to any individual with a view toward their individual circumstances. While all information is believed to be reliable, it is not guaranteed by us to be accurate. Individuals should assume that all information contained in our newsletter is not trustworthy unless verified by their own independent research. Also, because events and circumstances frequently do not occur as expected, there will likely be differences between any predictions and actual results. Always consult a licensed investment professional before making any investment decision. Be extremely careful, investing in securities carries a high degree of risk; you may likely lose some or all of the investment.USA News Group is a wholly-owned subsidiary of Market IQ Media Group, Inc. ("MIQ"). This article is being distributed by USA News Group on behalf of MIQ. MIQ has been paid a fee for GT Biopharma, Inc. advertising and digital media from Creative Direct Marketing Group ("CDMG"). There may be 3rd parties who may have shares of GT Biopharma, Inc. and may liquidate their shares which could have a negative effect on the price of the stock. This compensation constitutes a conflict of interest as to our ability to remain objective in our communication regarding the profiled company. Because of this conflict, individuals are strongly encouraged to not use this article or email as the basis for any investment decision. The owner/operator of MIQ currently owns shares of GT Biopharma, Inc. that were purchased in the open market and reserves the right to buy and sell, and will buy and sell shares of GT Biopharma, Inc. at any time without any further notice commencing immediately and ongoing. We also expect further compensation as an ongoing digital media effort to increase visibility for the company; no further notice will be given, but let this disclaimer serve as notice that all material disseminated by MIQ has been reviewed and approved on behalf of GT Biopharma, Inc. by CDMG; this is a digital media distribution.While all information is believed to be reliable, it is not guaranteed by us to be accurate. Individuals should assume that all information contained in our article is not trustworthy unless verified by their own independent research. Also, because events and circumstances frequently do not occur as expected, there will likely be differences between any predictions and actual results. Always consult a licensed investment professional before making any investment decision. Be extremely careful, investing in securities carries a high degree of risk; you may likely lose some or all of the investment.Logo: https://mma.prnewswire.com/media/2838876/5656770/USA_News_Group_Logo.jpg  View original content:https://www.prnewswire.com/news-releases/the-13-million-company-teaching-the-immune-system-to-hunt-cancer-302785505.htmlSOURCE USA News Group Original: The $13 Million Company Teaching the Immune System to Hunt Cancer

GTBP..................................https://stockcharts.com/sc3/ui/?s=GTBP&p=w&b=5&g=0&id=p86431144783

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B7-H3 Becomes The Hottest Antigen In Oncology, And One NK Engager Enters ClinicMay 18, 2026 2:22 PM
PR Newswire (US) Issued on behalf of GT Biopharma, Inc. SAN FRANCISCO, May 18, 2026 /PRNewswire/ -- USA News Group News Commentary — For more than two decades, B7-H3 sat on the shortlist of theoretically perfect cancer drug targets that nobody could quite figure out how to hit. The protein is broadly overexpressed across some of the most common — and most lethal — solid tumors, including prostate, lung, breast, ovarian, head and neck, and pancreatic cancers. It is largely absent from healthy tissue. It correlates with poor prognosis. On paper, it has every quality a drug developer wants. In practice, three B7-H3-targeting antibody-drug conjugates have entered the clinic, and none have yet been approved.[1] That is starting to change. Key Takeaways GT Biopharma (NASDAQ: GTBP) dosed the first patient on May 14, 2026 in a Phase 1 dose-escalation basket trial of GTB-5550, its B7-H3-targeted natural killer cell engager for solid tumors expressing B7-H3 — the third TriKE candidate to enter the clinic, and the first tested with patient-friendly subcutaneous dosing.FDA cleared the GTB-5550 IND in February 2026, with dose-escalation cohorts prioritizing advanced prostate, ovarian, and pancreatic cancer patients who have failed prior therapy. The Company targets a portion of the estimated US$362 billion global solid tumor market.B7-H3 has rapidly become one of the most actively pursued antigens in solid tumor oncology in 2026, with bispecific antibody-drug conjugates, systemic radiopharmaceuticals, and now natural killer cell engagers all converging on the same target — broadly overexpressed across prostate, lung, breast, ovarian, head and neck, and pancreatic cancers, largely absent from healthy tissue.GT Biopharma reported a cash balance as of March 31, 2026 of approximately US$9 million, anticipated to provide sufficient cash runway through Q4 2026, with Phase 1 updates anticipated in 2H 2026 as dose escalation progresses.In 2026, B7-H3 has become one of the most actively pursued antigens in solid tumor oncology. The mechanisms are widely varied — bispecific antibody-drug conjugates at IDEAYA, antibody-drug conjugates at GSK paired with bispecific antibody combinations at Summit Therapeutics, systemic radiopharmaceuticals across other pipelines, and now a natural killer cell engager from GT Biopharma, Inc. (NASDAQ: GTBP) — but the target is the same. The convergence is what makes the moment distinctive. When mechanism diversity collapses onto a single antigen, the antigen is what is being repriced.Read more on GT Biopharma by clicking here GTB-5550: The Third TriKE Into The Clinic, And The First Subcutaneous On May 14, 2026, GT Biopharma announced that the first patient had been dosed in a Phase 1 dose-escalation basket trial evaluating GTB-5550, its B7-H3-targeted natural killer cell engager for solid tumors expressing B7-H3.[2] GTB-5550 is the third TriKE — Tri-specific Killer Engager — molecule from GT Biopharma to enter the clinic. Critically, it is also the first to be tested with subcutaneous dosing, a design choice that distinguishes it from a category where most engager therapies have historically required continuous infusion.[1]"Dosing the first patient in our GTB-5550 Phase 1 trial is a pivotal milestone for GT Biopharma and represents the natural evolution of our TriKE platform into the broader opportunity of treating patients with a variety of solid tumors," said Michael Breen, Executive Chairman and Chief Executive Officer of GT Biopharma.[1] The May 15, 2026 Q1 financial results release confirmed the broader pipeline context: with the GTB-5550 Phase 1 trial now active, GT Biopharma has advanced three TriKE candidates into the clinic — a milestone Breen described as one that "underscores the continued momentum of our pipeline."[3]The molecular architecture of GTB-5550 reflects the design discipline GT Biopharma has built into its 2nd-generation TriKE platform. The molecule is a camelid (cam) anti-CD16 / WT IL-15 / cam anti-B7-H3 tri-specific natural killer cell engager — a single-chain recombinant TriKE comprised of three components joined by flexible linkers: a nanobody arm that engages the CD16 activating receptor on natural killer cells, a wildtype IL-15 linker arm to drive NK cell proliferation, priming, and survival, and a nanobody arm that specifically engages B7-H3 to target the antigen expressed on tumor cells.[4] The 2nd-generation TriKE platform that underlies GTB-5550 has been described as 10–40 times more potent than 1st-generation TriKE, and all current TriKE development at the Company is focused on the 2nd-generation platform.[4]Dose Escalation: Prostate, Ovarian, And Pancreatic Cancer Prioritized FDA cleared the GTB-5550 IND application in February 2026.[5] In the Company's commentary on the clearance, Breen described it as "a defining moment for GT Biopharma as we bring another NK cell engager into the clinic."[5] The Phase 1 trial is structured as a basket trial open to patients with common solid tumors that express B7-H3. In the dose-escalation component, enrollment is being prioritized for advanced prostate, ovarian, and pancreatic cancer patients who have failed prior therapy.[5] The clinical design reflects a deliberate choice: prioritize patient populations where the unmet need is highest, where B7-H3 expression is well-characterized, and where the regulatory pathway around accelerated approval has historically been most navigable.Phase 1 trial updates are anticipated in the second half of 2026 as enrollment progresses through dose escalation cohorts.[3] The Q1 2026 financial results release reported a cash balance as of March 31, 2026 of approximately US$9 million, anticipated to provide sufficient cash runway through Q4 2026.[3] The funding visibility, paired with the Phase 1 first-patient-dosed milestone, gives investors a defined catalyst window across the back half of 2026 for the first set of clinical readouts from the new program.The TriKE platform has been developed under an exclusive worldwide license agreement with the University of Minnesota, providing GT Biopharma with the rights to further develop and commercialize therapies using TriKE technology.[2] The Company's broader pipeline now spans GTB-3650 (the first 2nd-generation camelid nanobody TriKE, being tested clinically for CD33-positive leukemias including AML and MDS), GTB-5550 (the B7-H3 program for solid tumors), and GTB-7550 (in development for CD19-positive lymphoid malignancies and autoimmune disease).[4]Why The B7-H3 Convergence Matters The strategic case for GTB-5550 is sharpened by what is happening around B7-H3 across the rest of the oncology sector. The number of high-quality drug developers now actively pursuing the antigen, across multiple modalities, has shifted B7-H3 from "theoretically perfect" to "actively competitive" in less than 18 months. That competition matters less as a threat than as a validation. When IDEAYA is enrolling a bispecific B7-H3 / PTK7 antibody-drug conjugate, GSK is partnering its B7-H3 antibody-drug conjugate with Summit Therapeutics's ivonescimab in multiple solid tumor settings, and GT Biopharma is dosing the first patient in a B7-H3 NK cell engager Phase 1 trial — all within the first half of 2026 — the read-through is that the antigen has reached the threshold where the drug developer community has concluded the biology supports clinical translation.[1]What differentiates GT Biopharma inside that crowd is the mechanism. GTB-5550 is the only B7-H3-targeted natural killer cell engager in the Phase 1 patient-dosing window in 2026, and the only one tested with subcutaneous dosing. The TriKE design — engaging CD16 on NK cells, embedding an IL-15 moiety to drive NK cell proliferation and persistence, and targeting B7-H3 on tumor cells — gives the molecule a mechanistic profile that is structurally distinct from the antibody-drug conjugate and bispecific antibody approaches that dominate the rest of the B7-H3 development field.How GT Biopharma Sits Inside The B7-H3 And Solid Tumor Universe Summit Therapeutics Inc. (NASDAQ: SMMT) is one of the largest publicly traded oncology biotechs by market capitalization, with a market value around US$14 billion as of early 2026.[6] On January 12, 2026, Summit announced a clinical trial collaboration with GSK plc to evaluate ivonescimab — Summit's lead PD-1 / VEGF bispecific antibody — in combination with GSK's novel investigational B7-H3-targeting antibody-drug conjugate, risvutatug rezetecan (also known as GSK'227), across multiple solid tumor settings including small cell lung cancer.[7] Summit subsequently announced FDA acceptance of its Biologics License Application for ivonescimab on January 29, 2026, with a Prescription Drug User Fee Act goal action date of November 14, 2026.[8] Summit represents the institutional-scale comparable for the broader bispecific oncology investment thesis B7-H3 development is now inside.IDEAYA Biosciences, Inc. (NASDAQ: IDYA) announced in February 2026 that the first patient had been enrolled in its Phase 1 dose-escalation/expansion trial evaluating IDE034, a potential first-in-class PTK7 / B7-H3 bispecific TOP1 antibody-drug conjugate.[6] The design rationale is unusually specific: IDEAYA estimates that B7-H3 and PTK7 are co-expressed in approximately 30–40% of certain large solid tumor types — including lung, breast, ovarian, and colorectal cancers — while exhibiting minimal dual-antigen expression in normal tissue.[6] The drug is designed to be internalized only when both antigens are co-expressed on the same tumor cell, an architecture intended to enhance selectivity and tolerability compared to monovalent antibody formats.[6] IDEAYA offers the cleanest small-to-mid-cap B7-H3 development comparable in the public market.GSK plc (NYSE: GSK) is one of the largest pharmaceutical companies in the world by market cap, and the B7-H3-targeting antibody-drug conjugate risvutatug rezetecan (GSK'227) sits inside its broader oncology platform. The January 12, 2026 collaboration with Summit Therapeutics to combine GSK'227 with ivonescimab across multiple solid tumor settings, including small cell lung cancer, places GSK directly in the B7-H3 development conversation — and signals to the broader industry that one of the largest pharmaceutical companies in the world has concluded the B7-H3 modality is worth aggressive clinical investment.[7] GSK's involvement is a structural validation of the antigen that supports the broader investment thesis around B7-H3-targeted programs at every scale.Innate Pharma S.A. (NASDAQ: IPHA) has long been one of the more prominent publicly listed pure-play NK cell engager companies, with multispecific approaches that hit triggering receptors including NKp46 — adding to the broader CD16-anchored NK cell engagement framework. Innate's NK cell engager IPH6101 was advanced with Sanofi as a clinical-stage candidate for blood cancers. Innate provides a relevant comparable for the NK cell engager mechanism category specifically — distinct from the antibody-drug conjugate and bispecific antibody mechanisms that dominate most of the rest of the B7-H3 field — and helps frame the mechanism-specific investment thesis for an engager-platform company like GT Biopharma.Across all four comparables, the pattern is recognizable: 2026 is the year B7-H3 became one of the most-watched antigens in oncology, and the development pipelines now actively pursuing it span four different mechanism categories. GT Biopharma's distinction inside that crowd is that its TriKE platform is the only NK cell engager with a B7-H3 program currently dosing patients.The Catalyst Window Ahead The remainder of 2026 sets up a defined catalyst window for GT Biopharma. The Phase 1 dose-escalation trial for GTB-5550 is now enrolling, with the first patient dosed on May 14, 2026, and updates anticipated in 2H 2026 as the trial progresses through dose escalation cohorts.[3] The Company's cash position of approximately US$9 million as of March 31, 2026 is expected to provide sufficient runway through Q4 2026 — meaning the question of when initial efficacy or safety signals can be expected, and when additional capital may need to be raised against initial Phase 1 read, are both visible inside the next two to three quarters.[3]For investors who have read the B7-H3 convergence — and concluded that the antigen has reached the validation threshold where mechanism differentiation now matters — GT Biopharma offers a small-cap, single-platform exposure to the only NK cell engager program currently in B7-H3 patient dosing. Whether the Phase 1 data ultimately supports translation into a registrational program will be tested cohort by cohort across the back half of 2026 and into 2027. The window for new entrants into the B7-H3 antigen-targeted clinical field is no longer wide open — but the window for differentiated mechanisms inside it has, briefly, never been more visible.CONTACT:USA News Group
info @therooster-2873Article Sources[1] https://www.globenewswire.com/news-release/2026/05/14/3295057/0/en/A-Cancer-Antigen-Long-Thought-Untouchable-Is-Suddenly-the-Hottest-Target-in-Oncology.html [2] https://www.manilatimes.net/2026/05/14/tmt-newswire/globenewswire/gt-biopharma-announces-first-patient-dosed-in-phase-1-trial-of-gtb-5550-a-b7-h3-targeted-natural-killer-nk-cell-engager-for-solid-tumors/2343964 [3] https://www.biospace.com/press-releases/gt-biopharma-reports-first-quarter-2026-financial-results [4] https://www.gtbiopharma.com/product-pipeline/overview [5] https://www.globenewswire.com/news-release/2026/02/03/3231077/0/en/GT-Biopharma-Announces-FDA-Clearance-of-Investigational-New-Drug-IND-Application-for-GTB-5550-TriKE-a-B7-H3-Targeted-Natural-Killer-NK-Cell-Engager-for-Solid-Tumors-Expressing-B7-H.html [6] https://investingnews.com/a-cancer-antigen-long-thought-untouchable-is-suddenly-the-hottest-target-in-oncology/ [7] https://www.sec.gov/Archives/edgar/data/0001599298/000159929826000004/a2026_prx0112xannounceme.htm [8] https://www.sec.gov/Archives/edgar/data/0001599298/000159929826000006/smmt-20260129.htmDISCLAIMER NOTICEDISCLAIMER/DISCLOSURE:Nothing in this publication should be considered as personalized financial advice. We are not licensed under securities laws to address your particular financial situation. No communication by our employees to you should be deemed as personalized financial advice. Please consult a licensed financial advisor before making any investment decision. This is a digital media distribution and is neither an offer nor recommendation to buy or sell any security. We hold no investment licenses and are thus neither licensed nor qualified to provide investment advice. The content in this report or email is not provided to any individual with a view toward their individual circumstances. While all information is believed to be reliable, it is not guaranteed by us to be accurate. Individuals should assume that all information contained in our newsletter is not trustworthy unless verified by their own independent research. Also, because events and circumstances frequently do not occur as expected, there will likely be differences between any predictions and actual results. Always consult a licensed investment professional before making any investment decision. Be extremely careful, investing in securities carries a high degree of risk; you may likely lose some or all of the investment.USA News Group is a wholly-owned subsidiary of Market IQ Media Group, Inc. ("MIQ"). This article is being distributed by USA News Group on behalf of MIQ. MIQ has been paid a fee for GT Biopharma, Inc. advertising and digital media from Creative Direct Marketing Group ("CDMG"). There may be 3rd parties who may have shares of GT Biopharma, Inc. and may liquidate their shares which could have a negative effect on the price of the stock. This compensation constitutes a conflict of interest as to our ability to remain objective in our communication regarding the profiled company. Because of this conflict, individuals are strongly encouraged to not use this article or email as the basis for any investment decision. The owner/operator of MIQ currently owns shares of GT Biopharma, Inc. that were purchased in the open market and reserves the right to buy and sell, and will buy and sell shares of GT Biopharma, Inc. at any time without any further notice commencing immediately and ongoing. We also expect further compensation as an ongoing digital media effort to increase visibility for the company; no further notice will be given, but let this disclaimer serve as notice that all material disseminated by MIQ has been reviewed and approved on behalf of GT Biopharma, Inc. by CDMG; this is a digital media distribution.While all information is believed to be reliable, it is not guaranteed by us to be accurate. Individuals should assume that all information contained in our article is not trustworthy unless verified by their own independent research. Also, because events and circumstances frequently do not occur as expected, there will likely be differences between any predictions and actual results. Always consult a licensed investment professional before making any investment decision. Be extremely careful, investing in securities carries a high degree of risk; you may likely lose some or all of the investment.Logo - https://mma.prnewswire.com/media/2838876/5656770/USA_News_Group_Logo.jpg View original content to download multimedia:https://www.prnewswire.com/news-releases/b7-h3-becomes-the-hottest-antigen-in-oncology-and-one-nk-engager-enters-clinic-302775099.htmlSOURCE USA News Group Original: B7-H3 Becomes The Hottest Antigen In Oncology, And One NK Engager Enters Clinic

GTBP.................................................https://stockcharts.com/sc3/ui/?s=GTBP&p=W&b=5&g=0&id=p86431144783

GTB-5550 trial live on clinicaltrials.gov https://clinicaltrials.gov/study/NCT07541573

GTBP.....................................https://stockcharts.com/sc3/ui/?s=GTBP&p=W&b=5&g=0&id=p86431144783

Worked for me.  I gottem drinking cold pressed green juice

So take your vitamins and you too, will be cancer free? Is that it?

GTBP.............................https://stockcharts.com/h-sc/ui?s=GTBP&p=W&b=5&g=0&id=p86431144783

EXCLUSIVE: GT Biopharma Reports Progresses Phase 1 Trial Of Lead Drug Candidate For Blood Cancers

Oct 8, 2025

https://www.benzinga.com/news/health-care/25/10/48097298/exclusive-gt-biopharma-reports-progresses-phase-1-trial-of-lead-drug-candidate-for-blood-cancers

$GTBP

It’s trying to hold up when a lot of others I was watching kept falling lower.

GTBP under $4

Looks like bottom possibly

GTBP........................................................................................................p/m

Hmmm... interesting

GTBP................................................p/m

buy the dip....
low low.

Got in...
Happy losing day.

$GTBP solid alerts

@MoonMarket_ pic.twitter.com/m5nAAf63ee— THE FINAL COUNTDOWN (@THIS_TIME_X) May 21, 2024

Didn’t participate in earlier todays squeeze but 100,000 shares available only. Nice continuation

GTBP https://x.com/GBearTrading/status/1792907456361713969

LOL

Early Barchart 100
https://www.barchart.com/stocks/performance/percent-change/advances?timeFrame=today&viewName=main&screener=overall&orderBy=percentChange&orderDir=desc

Wils

Regarding @RONN, no tip was given to me about it at all --- indeed, the FIRST time I heard about was from YOUR post to me over here.

GTBP: Nope; I simply follow the daily posts of iHub's "tw0122", who was the first to post in here on this one.

I've been trying to find you Did you take the tip that was given to you?

https://investorshub.advfn.com/boards/read_msg.aspx?message_id=174447373

Joker!!! Looks like it’s halted again

no future - be at 50c

GTBP: Halted!!

I’m still holding what’s all the excitement about

GTBP: Still holding --- 4-bagger later today??????

Moon man summary 90% institutional ownership by Girozentrale on 1m float leaves 100,000 shares for retail to pump. June catalyst

One year price target of $153. Published post split, article available on NASDAQ.com.

$GTBP recent r/s Bio 1.34m float with 15 months of cash $8.52 cash/sh and no dilution has large pipeline and recently submitted IND application pic.twitter.com/icI6E2OapY— STOCKS Gambino (@StocksGambino) March 12, 2024

GTBP: effective Feb. 5,2024 a one for 30 reverse split:

https://hedgefollow.com/upcoming-stock-splits.php

Anyone have access to the latest HCW or EF Hutton research reports?

Nice grab

Sure is ,and this sudden burst in volume is telling, added today

This is the bottom folks

Weeee

A little bit

Action!!

The big three 0

saw that too. these bios are beat to hell... should eventually get back some public trust

Nice buys coming in

Nice! Should be hearing something from these guys... hopefully soon.

Nice buys coming in