Fennec Pharmaceuticals Announces Acceptance of Abstracts at the 2026 ASCO Annual Meeting

On April 21, 2026 Fennec Pharmaceuticals Inc. (NASDAQ:FENC; TSX: FRX), a specialty pharmaceutical company, reported that four abstracts evaluating PEDMARK (sodium thiosulfate injection) were accepted as part of the 2026 American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Annual Meeting program, taking place May 29-June 2, 2026 in Chicago, IL.

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PEDMARK is currently approved for pediatric patients one month of age and older with localized, non-metastatic solid tumors, and is also recognized by the National Comprehensive Cancer Network with a 2A recommendation for use in adolescent and young adult patients.

Poster Presentation Details:

Title: Effects of Delayed Sodium Thiosulfate on Cisplatin-Induced Ototoxicity in Pediatric and Adolescent Patients with Cancer: Results from the Japanese Children’s Cancer Group STS-J01 Study
Poster Session: Pediatric Oncology
Date and Time: June 1, 2026, 1:30 PM – 4:30 PM CT
Abstract Number: 10052
Lead Author: Eiso Hiyama, MD, professor in the Department of Pediatric Surgery at Hiroshima University Hospital in Hiroshima, Japan

Title: Randomized Phase 1 Trial of Cisplatin-Based Chemotherapy With or Without Sodium Thiosulfate for Men with Metastatic Germ Cell Tumor (GCT)
Poster Session: Genitourinary Cancer—Prostate, Testicular, and Penile
Date and Time: May 31, 2026, 9:00 AM – 12:00 PM CT
Abstract Number: TPS5131
Lead Author: Koral Shah, MD, Hematology/Oncology chief fellow, City of Hope

Abstract-Only Publication Details:

Title: Real-World Feasibility and Tolerability of PEDMARK for Otoprotection in Young Adults Receiving Cisplatin for Solid Tumors.
Abstract Number: e24189
Lead Author: Veronica Alana Vestal, MD, Comprehensive Cancer Center of University of Puerto Rico

Title: Audiometric Outcomes for Intravenous Sodium Thiosulfate for Cisplatin-Induced Ototoxicity Prevention in Adults with Head and Neck Cancer
Abstract Number: e18110
Lead Author: James Johns, MD, Icahn School of Medicine at Mount Sinai, New York

The full abstracts will be available on the ASCO (Free ASCO Whitepaper) website on May 21, 2026, at 5:00 p.m. ET.

About Cisplatin-Induced Ototoxicity
Cisplatin and other platinum-based chemotherapies are widely used to treat solid tumors and have been vital in improving survival rates. Unfortunately, these life-saving treatments often result in permanent, irreversible hearing loss, also known as ototoxicity.1

Hearing loss from cisplatin treatment is not rare. Studies show that between 60-90% of patients treated with cisplatin may develop hearing loss, depending upon the dose and duration of chemotherapy2. Many of those treated with cisplatin will require lifelong hearing aids or cochlear implants, which can be helpful for some, but do not reverse the hearing loss and can be costly over time.3 Treatment-induced hearing loss can reduce quality of survivorship as it impacts many aspects of life, such as speech and language skills, academic performance, social-emotional development, career potential and the ability to live independently.4,5 While audiologic monitoring is recommended to help manage ototoxicity, it is currently underutilized in certain cancer patient populations.

PEDMARK (sodium thiosulfate injection)
PEDMARK is the first and only U.S. Food and Drug Administration (FDA) approved therapy indicated to reduce the risk of ototoxicity associated with cisplatin treatment in pediatric patients 1 month of age and older with localized, non-metastatic, solid tumors. It is a unique formulation of sodium thiosulfate in single-dose, ready-to-use vials for intravenous use in pediatric patients. PEDMARK is also the first and only therapeutic agent with proven efficacy and safety data with an established dosing regimen, across two open-label, randomized Phase 3 clinical studies, the Children’s Oncology Group (COG) Protocol ACCL0431 and SIOPEL 6.

Additionally, PEDMARK is recommended for the adolescent and young adult (AYA) population by the National Comprehensive Cancer Network, or NCCN, with a 2A endorsement.

Approximately 500,000 patients in the U.S. are diagnosed annually with cancers that could be treated with a platinum-based chemotherapy.6,7 The incidence of ototoxicity depends upon the dose and duration of chemotherapy, and many of those treated will require lifelong hearing aids. Until the FDA approval of PEDMARK, there were no preventative agents for this hearing loss. Patients with hearing loss resulting from cancer treatment have a statistically significant worse quality of life compared with peers who have no hearing loss.89

PEDMARK has been studied by co-operative groups in two Phase 3 clinical studies of survival and reduction of ototoxicity, COG ACCL0431 and SIOPEL 6. Both studies have been completed. The COG ACCL0431 protocol enrolled childhood cancers typically treated with intensive cisplatin therapy for localized and disseminated disease, including newly diagnosed hepatoblastoma, germ cell tumor, osteosarcoma, neuroblastoma, medulloblastoma, and other solid tumors. SIOPEL 6 enrolled only hepatoblastoma patients with localized tumors.

Indications and Usage
PEDMARK (sodium thiosulfate injection) is indicated to reduce the risk of ototoxicity associated with cisplatin in pediatric patients 1 month of age and older with localized, non-metastatic solid tumors.

Limitations of Use
The safety and efficacy of PEDMARK have not been established when administered following cisplatin infusions longer than 6 hours. PEDMARK may not reduce the risk of ototoxicity when administered following longer cisplatin infusions, because irreversible ototoxicity may have already occurred.

Important Safety Information
PEDMARK is contraindicated in patients with history of a severe hypersensitivity to sodium thiosulfate or any of its components.

Hypersensitivity reactions occurred in 8% to 13% of patients in clinical trials. Monitor patients for hypersensitivity reactions. Immediately discontinue PEDMARK and institute appropriate care if a hypersensitivity reaction occurs. Administer antihistamines or glucocorticoids (if appropriate) before each subsequent administration of PEDMARK. PEDMARK may contain sodium sulfite; patients with sulfite sensitivity may have hypersensitivity reactions, including anaphylactic symptoms and life-threatening or severe asthma episodes. Sulfite sensitivity is seen more frequently in people with asthma.

PEDMARK is not indicated for use in pediatric patients less than 1 month of age due to the increased risk of hypernatremia or in pediatric patients with metastatic cancers.

Hypernatremia occurred in 12% to 26% of patients in clinical trials, including a single Grade 3 case. Hypokalemia occurred in 15% to 27% of patients in clinical trials, with Grade 3 or 4 occurring in 9% to 27% of patients. Monitor serum sodium and potassium levels at baseline and as clinically indicated. Withhold PEDMARK in patients with baseline serum sodium greater than 145 mmol/L.

Monitor for signs and symptoms of hypernatremia and hypokalemia more closely if the glomerular filtration rate (GFR) falls below 60 mL/min/1.73m2.

Administer antiemetics prior to each PEDMARK administration. Provide additional antiemetics and supportive care as appropriate.

The most common adverse reactions (≥25% with difference between arms of >5% compared to cisplatin alone) in SIOPEL 6 were vomiting, nausea, decreased hemoglobin, and hypernatremia. The most common adverse reaction (≥25% with difference between arms of >5% compared to cisplatin alone) in COG ACCL0431 was hypokalemia.

Please see full Prescribing Information for PEDMARK at: www.PEDMARK.com.

(Press release, Fennec Pharmaceuticals, APR 21, 2026, View Source [SID1234664656])

ProstACT Global Phase 3 (Part 1) Selected as Late-Breaking Abstract at ASCO 2026

On April 21, 2026 Telix Pharmaceuticals Limited (ASX: TLX, NASDAQ: TLX, "Telix") reported that safety and tolerability data from the ProstACT Global Phase 3 study (Part 1) will be presented as a late-breaking oral presentation at the 2026 American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Annual Meeting, taking place May 29 – June 2, 2026, in Chicago, IL.

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ProstACT Global is an international, multi-center, Phase 3 trial evaluating Telix’s lead prostate-specific membrane antigen (PSMA) targeted lutetium radio antibody-drug conjugate (rADC) therapy, TLX591-Tx (lutetium-177 (¹⁷⁷Lu) rosopatamab tetraxetan), in combination with standard of care (SoC) versus SoC alone. The study is designed to reflect real-world global clinical practice with the aim to support broad geographic adoption in the evolving prostate cancer treatment landscape.

Part 1 of the trial is a safety and dosimetry lead-in, assessing the tolerability, biodistribution, and radiation dose profile of TLX591-Tx when administered in combination with SoC in patients with PSMA-positive metastatic castration-resistant prostate cancer (mCRPC).

The selection of this abstract as a late-breaking oral presentation at ASCO (Free ASCO Whitepaper) underscores the potential clinical significance of the ProstACT Global study and Telix’s continued leadership in advancing next-generation radiopharmaceutical therapies for prostate cancer.

Presentation details are as follows:

Title: Safety and dosimetry of 177Lu-rosopatamab tetraxetan plus SoC in patients with metastatic castration-resistant prostate cancer: Preliminary results from Part 1 of Phase 3 ProstACT Global study.

Presenting Author: Pedro C. Barata, MD, MSc, University Hospitals Seidman Cancer Center, Cleveland, OH.

Abstract Number: LBA5009.

Date, Time and Location: June 1, 2026, 3:12 p.m. – 3:24 p.m. CDT, Arie Crown Theater

Session Type and Title: Clinical Science Symposium – Radiation Re-Imagined: Radioligand Innovation in Prostate Cancer

Late-breaking abstracts will be made publicly available at 7:00 a.m. CDT (8:00 a.m. EDT) on the day of presentation. Additional information can be found at www.asco.org

About ProstAct Global

ProstACT Global (ClinicalTrials.gov ID: NCT06520345) is an international, multi-center trial in two parts: Part 1, safety and dosimetry lead-in with 36 patients (complete); and Part 2, 2:1 randomized global expansion with an overall target enrollment of approximately 490 patients. Eligible patients must have confirmed progressive mCRPC assessed with a 68Ga-PSMA-11 PET1 imaging agent (such as Illuccix, kit for the preparation of gallium-68 (68Ga) gozetotide injection, or Gozellix, kit for the preparation of gallium-68 (68Ga) gozetotide injection) following prior treatment with one androgen receptor pathway inhibitor (ARPI).

The antibody approach demonstrates different targeting and pharmacology to that observed in other PSMA-targeted small molecule radioligand therapies (RLT). In contrast to these therapies2, collective long-term follow-up of patients administered with TLX591-Tx has not observed significant acute or delayed kidney toxicity, as the agent is primarily cleared through the liver, a comparatively radioresistant organ, instead of the kidneys3. Due to its large molecular weight, TLX591-Tx also demonstrates minimal salivary and lacrimal gland uptake, reducing dry mouth and dry eyes, common adverse effects of existing PSMA-targeted RLTs4.

Additional information on the Phase 3 ProstACT Global study can be found at: View Source

TLX591-Tx has not received a marketing authorization in any jurisdiction.

(Press release, Telix Pharmaceuticals, APR 21, 2026, View Source [SID1234664655])

BBOT Presents Preclinical Data Showing RAS:PI3Kα Breaker BBO-10203 Inhibits PI3Kα/AKT Signaling in HER2AMP Models at the AACR Annual Meeting 2026

On April 21, 2026 BridgeBio Oncology Therapeutics, Inc. ("BBOT") (Nasdaq: BBOT), a clinical-stage biopharmaceutical company focused on RAS-pathway malignancies, reported new preclinical data in an oral presentation for BBO-10203, a first-in-class covalent small molecule RAS:PI3Kα breaker that selectively blocks the physical interaction between RAS and PI3Kα resulting in the inhibition of RAS-driven PI3Kα-AKT signaling in tumors with no observed hyperglycemia. The data were presented at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2026.

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"The interaction between RAS and PI3Kα plays a critical role in malignant cells," said Pedro J. Beltran, PhD, Chief Scientific Officer of BBOT. "BBO-10203 physically disrupts the interaction between RAS and PI3Kα, leading to signaling inhibition and tumor regressions. Importantly, unlike competing approaches, no hyperglycemia has been observed to date. In addition, BBO-10203’s ability to block RAS-mediated activation of PI3Kα is independent of the mutational status of either RAS or PI3Kα, which may enable treatment of a broader patient population. These data suggest that non-canonical RAS proteins play a key role in PI3Kα activation in HER2AMP cell lines. Furthermore, BBO-10203 demonstrates strong in vivo combination activity with HER2-targeted therapies, including tucatinib and trastuzumab, in HER2 AMP models."

Highlights from the oral presentation include:

BBO-10203 physically and allosterically disrupts the interaction between RAS and PI3Kα, leading to signaling inhibition without inhibiting the kinase activity of PI3Kα
BBO-10203 induces tumor regressions at 30 mg/kg QD and no hyperglycemia observed at 100 mg/kg QD
BBO-10203 shows that PI3Kα activity in HER2AMP cells is RAS-dependent
RAS RBD mutations recapitulate the pAKT and viability effects of breaker activity in HER2AMP cell lines
Non-canonical RAS signaling appears to be the dominant driver of pAKT in HER2AMP cell lines
BBO-10203 displays strong in vivo combination effects with HER2 inhibitors tucatinib or trastuzumab in HER2AMP models

The oral presentation is titled "The RAS:PI3Kα breaker BBO-10203 inhibits PI3Kα/AKT activity in HER2AMP models through non-canonical RAS signaling blockade." A copy of the presentation will be available on the "Publications" page of the BBOT website following the conference.

About BBO-10203
BBO-10203 is an orally bioavailable small molecule with a novel mechanism of action designed to inhibit the physical interaction between RAS and PI3Kα, inhibiting RAS-driven PI3Kα-AKT signaling in tumors. BBO-10203 binds directly and covalently to the RAS-binding domain of PI3Kα, preventing its activation by KRAS, HRAS and NRAS, reducing downstream signaling and tumor growth. It is a protein-protein inhibitor and not a kinase inhibitor, enabling inhibition of RAS-driven PI3Kα-AKT signaling in tumors without the risk of hyperglycemia. Importantly, BBO-10203’s ability to block RAS activation of PI3Kα is agnostic to the mutational status of either RAS or PI3Kα. In addition to a potentially differentiated safety profile, BBO-10203 could be combined with direct KRAS inhibitors, such as BBO-8520 and BBO-11818, or drugs that target HER2 or ER receptors. BBO-10203 is being evaluated in the Phase 1 BREAKER-101 trial (NCT06625775) for patients with locally advanced or metastatic HER2+ breast cancer, HR+/HER2- breast cancer, KRAS-mutant colorectal cancer, and KRAS-mutant non-small cell lung cancer. Updated Phase 1 clinical data are expected in the second half of 2026.

(Press release, BridgeBio Oncology Therapeutics, APR 21, 2026, View Source [SID1234664654])

Ascentage Pharma to Present Data from Multiple Trials, Including Three Rapid Oral Presentations, at ASCO 2026

On April 21, 2026 Ascentage Pharma Group International (NASDAQ: AAPG; HKEX: 6855), a global, commercial stage, integrated biopharmaceutical company engaged in the discovery, development and commercialization of novel, differentiated therapies to address unmet medical needs in cancer, reported that six abstracts from clinical studies of three key drug candidates have been selected for presentation at the 2026 American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) Annual Meeting, to be held in person at McCormick Place in Chicago, IL, and online, May 29 – June 2, 2026. With three abstracts selected for rapid oral presentations and three abstracts selected for poster presentations, these data highlight the global innovation and clinical value of Ascentage Pharma’s portfolio, inclusive of Olverembatinib (HQP1351), the first third-generation BCR-ABL inhibitor approved in China; Lisaftoclax (APG-2575), the first approved China-developed Bcl-2 selective inhibitor; and Alrizomadlin (APG-115), an MDM2-p53 inhibitor.

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The ASCO (Free ASCO Whitepaper) Annual Meeting showcases cutting-edge research in clinical oncology and advanced cancer therapies and is the world’s most prominent scientific gathering in the oncology community.

Dr. Yifan Zhai, Chief Medical Officer of Ascentage Pharma, said, "This marks Ascentage Pharma’s ninth consecutive year presenting at the ASCO (Free ASCO Whitepaper) Annual Meeting. We are pleased to once again present our global innovation and R&D capabilities on this premier international stage. The selection of data from multiple studies this year, including three rapid oral presentations, further underscores the global scientific community’s recognition of the clinical value of our drug candidates. We look forward to sharing comprehensive data during the meeting and continuing to accelerate our global clinical development programs, with the goal of bringing more treatment options to patients as soon as possible."

The clinical studies to be presented at this year’s ASCO (Free ASCO Whitepaper) Annual Meeting are as follows:

Rapid oral presentations
Olverembatinib (HQP1351) combined with blinatumomab in patients with lymphoid blast phase chronic myeloid leukemia (CML-LBP) or Philadelphia chromosome-positive B-cell precursor acute lymphoblastic leukemia (Ph+ BCP-ALL)

Abstract #: 6513
Format: Rapid oral presentation
Session Title: Hematologic Malignancies—Leukemia, Myelodysplastic Syndromes, and Allotransplant
Date and Time: May 30, 2026, 1:15 – 2:45 p.m., Central Time (May 31, 2026, 2:15 – 3:45 a.m., Beijing Time)
First Author: Elias Jabbour, MD, Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX
Updated efficacy and safety of Olverembatinib (HQP1351) as second-line therapy in patients with chronic-phase chronic myeloid leukemia (CP-CML)

Abstract #: 6510
Format: Rapid oral presentation
Session Title: Hematologic Malignancies—Leukemia, Myelodysplastic Syndromes, and Allotransplant
Date and Time: May 30, 2026, 1:15 – 2:45 p.m., Central Time (May 31, 2026, 2:15 – 3:45 a.m., Beijing Time)
First Author: Weiming Li, MD, Department of Hematology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
Alrizomadlin (APG-115) alone or in combination with lisaftoclax (APG-2575) for the treatment of pediatric patients with relapsed/metastatic rhabdomyosarcoma (RMS) or other soft-tissue sarcomas (STSs)

Abstract #: 10012
Format: Rapid oral presentation
Session Title: Pediatric Oncology II
Date and Time: May 30, 2026, 8:00 – 9:30 a.m., Central Time (May 30, 2026, 9:00 -10:30 p.m., Beijing Time)
First Author: Yizhuo Zhang, MD, Department of Pediatric Oncology, Sun Yat-sen University Cancer Center, State Key Laboratory of Oncology in South China, Collaborative Innovation Center for Cancer Medicine, Guangzhou, China
Poster Presentations
Updated clinical and translational results of Olverembatinib (HQP1351) in patients with succinate dehydrogenase (SDH)-deficient tumors

Abstract #: 11539
Format: Poster presentation
Session Title: Sarcoma
Date and Time: June 1, 2026, 1:30 – 4:30 p.m., Central Time (June 2, 2026, 2:30 – 5:30 a.m., Beijing Time)
First Author: Haibo Qiu, MD, PhD, Sun Yat-sen University Cancer Center; State Key Laboratory of Oncology in South China Collaborative Innovation Center for Cancer Medicine, Sun Yat-sen University Cancer Center, Guangzhou, China
A phase 3 study of Olverembatinib (HQP1351) in patients with chronic-phase chronic myeloid leukemia: POLARIS-2 trial in progress

Abstract #: TPS6608
Format: Poster presentation
Session Title: Hematologic Malignancies—Leukemia, Myelodysplastic Syndromes, and Allotransplant
Date and Time: June 1, 2026, 9:00 a.m. – 12:00 p.m., Central Time (June 1, 2026, 10:00 p.m. -Tuesday June 2, 2026, 1:00 a.m., Beijing Time)
First Author: Elias Jabbour, MD, Department of Leukemia, The University of Texas MD Anderson Cancer Center, Houston, TX
A global multicenter, open-label, randomized, phase 3 registrational study of Lisaftoclax (APG-2575) in previously treated chronic lymphocytic leukemia/small lymphocytic lymphoma (CLL/SLL): GLORA trial in progress

Abstract #: TPS7101
Format: Poster presentation
Session Title: Hematologic Malignancies—Lymphoma and Chronic Lymphocytic Leukemia
Date and Time: June 1, 2026, 9:00 a.m. – 12:00 p.m., Central Time (June 1, 2026, 10:00 p.m. -Tuesday June 2, 2026, 1:00 a.m., Beijing Time)
First Author: Matthew Steven Davids, MD, Dana-Farber Cancer Institute
* Olverembatinib, Lisaftoclax and Alrizomadlin are currently under investigation and have not yet been approved by the FDA in the US.

(Press release, Ascentage Pharma, APR 21, 2026, View Source [SID1234664653])

ImmunoScape Presents Data on Significant, Selective In-Vivo Expansion of Cell Therapy Product at AACR Annual Meeting

On April 21, 2026 ImmunoScape Pte. Ltd., a spin-out of A*STAR backed by Amgen Ventures and EDBI that is developing next-generation TCR-based cancer immunotherapies, reported the presentation of compelling new preclinical data at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2026. The poster, titled "A novel ‘Seed-and-Boost’ immunotherapy drives potent TCR-T cell expansion, tumor infiltration, and durable tumor control," was presented on Monday, April 20, 2026 by Michael Fehlings, PhD, Co-Founder and CEO of ImmunoScape.

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The data presented at AACR (Free AACR Whitepaper) details the extensive preclinical studies of the company’s proprietary Seed and Boost platform. This groundbreaking platform combines low-dose tumor-specific T cells (the Seed) with the clinically-validated CUE-100 series molecule (the Boost) that triggers dramatic but highly selective in vivo expansion of the infused T cells. The Seed and Boost platform is designed to enable T cell therapies to effectively target solid tumors, including some of the most difficult-to-treat cancers.

The first Seed and Boost program focuses on tumors expressing the Wilms’ Tumor 1 (WT1) antigen, including cancers such as mesothelioma, glioblastoma, ovarian, pancreatic, gastric, and colorectal cancers. Ranked by the National Cancer Institute as one of the most important cancer antigens, WT1 is an intracellular oncoprotein broadly overexpressed across multiple cancer types and is targetable with TCR-based immunotherapy.

Key Data Highlights

Robust in vivo expansion and anti-tumor effect: In an animal model, Seed and Boost combination therapy drove significant TCR-T cell expansion and anti-tumor effect at both standard and low cell doses—suggesting the potential to dramatically reduce cell therapy manufacturing cost while simultaneously enhancing anti-tumor effect.

100% survival in a high tumor burden ovarian cancer model: In an animal model, the Seed and Boost combination achieved 100% survival, compared to significant mortality in the monotherapy arms.

Pancreatic tumor infiltration: In an animal model, the Seed and Boost combination resulted in significant infiltration of tumor-specific T cells into pancreatic tumors.

Evidence of sustained T-cell fitness and preferential CD8+ T-cell expansion: Analysis of tumor-infiltrating lymphocytes confirmed that the Seed and Boost upregulates markers associated with a tumor reactive T-cell phenotype.

"The data we are presenting at AACR (Free AACR Whitepaper) represent the strongest preclinical case yet for the Seed and Boost platform," said Michael Fehlings, PhD, Co-Founder and CEO of ImmunoScape. "We show selective in vivo T cell expansion, robust tumor infiltration, and a durable survival benefit—achieved without additional cell engineering or systemic IL-2 administration. These results support our upcoming first-in-human IIT at a major US NCI Cancer Center, which will dose its first patients in Autumn 2026."

"WT1 is a compelling target—broadly overexpressed in tumor types with the highest unmet need," said Adrian Bot, MD, PhD, Board Member of ImmunoScape and former Chief Scientific Officer of Kite Pharma and Capstan Therapeutics. "What excites me about Seed and Boost is that it may solve multiple problems of cell therapy: high costs, lack of T-cell persistence, and lack of tunability. This platform provides a unique clinically tunable ‘Boost’ signal to expand and maintain T-cell fitness in the patient. The in vivo expansion data presented here, combined with the depth of tumor infiltration we are seeing, represents an exciting step forward for the field. I believe this could transform TCR-T cell therapy into a durable, broadly accessible treatment for patients with solid tumor cancers. Moreover, the "Boost" technology shows promise in enhancing existing CAR-T and TIL therapies as well."

"The preclinical evidence presented at AACR (Free AACR Whitepaper) is both mechanistically compelling and translationally meaningful," said Evan Newell, PhD, Co-Founder of ImmunoScape and Chair of the Scientific Advisory Board, who attended the poster presentation. "The specificity of CUE-102 ("Boost")-driven T cell expansion, the depth of tumor infiltration, and the sustaining of T-cell effector function in vivo give us strong scientific rationale to advance this combination into patients. Cancer patients facing solid tumor cancers need new options, and this program is designed to deliver them."

The AACR (Free AACR Whitepaper) presentation marks a key milestone as ImmunoScape advances toward its first-in-human investigator-initiated trial (IIT) at a premier US NCI Cancer Center, renowned globally for its pioneering history in cellular immunotherapy. The IIT is designed to evaluate the Seed and Boost combination in WT1-expressing solid tumors including mesothelioma, ovarian cancer, gastric cancer, and colorectal cancer in HLA-A*02:01-positive patients.

First patient dosing is targeted for Autumn 2026, with preliminary human data anticipated in early 2027. The IIT is supported by the company’s current convertible note financing round and non-dilutive funding from Enterprise Singapore.

AACR Poster Details

Title: "A novel ‘Seed-and-Boost’ immunotherapy drives potent TCR-T cell expansion, tumor infiltration, and durable tumor control"

Conference: American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting 2026, San Diego, CA

Presenter: Michael Fehlings, PhD, Co-Founder and CEO, ImmunoScape Pte. Ltd.

Poster/Abstract Number: Poster Section 43 | Board 27 | Presentation 3812

(Press release, immunoSCAPE, APR 21, 2026, View Source [SID1234664652])