On October 20, 2025 Exelixis, Inc. (Nasdaq: EXEL) reported detailed results from STELLAR-303, a global phase 3 pivotal trial evaluating zanzalintinib in combination with atezolizumab (Tecentriq) versus regorafenib in patients with previously treated non-microsatellite instability (MSI)-high metastatic colorectal cancer (CRC). As previously announced, the study met one of its dual primary endpoints, demonstrating a 20% reduction in the risk of death with the combination in the intention-to-treat (ITT) population at the final analysis (stratified hazard ratio [HR]: 0.80; 95% confidence interval [CI]: 0.69-0.93; P=0.0045). At a median follow-up of 18.0 months, median overall survival (OS) in the ITT population was 10.9 months with zanzalintinib in combination with atezolizumab versus 9.4 months with regorafenib. Detailed findings from the study, including OS and progression-free survival (PFS) in the ITT population and in the subset of patients without liver metastases, are being presented today at the 2025 European Society for Medical Oncology (ESMO) (Free ESMO Whitepaper) Congress during the Proffered Paper Session 2: GI Tumours, Lower Digestive at 9:25 a.m. CEST and simultaneously published in The Lancet.

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"While treating non-MSI-high metastatic colorectal cancer remains a challenge, the combination of zanzalintinib and atezolizumab has shown consistent benefits across key subgroups of patients," said Anwaar Saeed, M.D., Section Chief of Gastrointestinal Oncology at the University of Pittsburgh, Director of the Gastrointestinal Disease Center at UPMC Hillman Cancer Center and a lead investigator of the trial. "STELLAR-303 is the first immunotherapy-based phase 3 trial that demonstrated improved overall survival with a differentiated kinase inhibitor compared to a standard of care in this patient population. The survival benefit was demonstrated early and was consistent throughout the trial, underscoring the combination’s potential for patients in need of a new and effective treatment option after disease progression."

An OS benefit with the combination was consistently observed across pre-specified subgroups, including geographic region, RAS status, liver involvement and prior anti-VEGF therapy, as presented in Table 1 below. The 12- and 24-month landmark OS estimates were 46% (95% CI: 41-51) and 20% (95% CI: 15-26), respectively, for the combination of zanzalintinib and atezolizumab, and 38% (95% CI: 34-43) and 10% (95% CI: 6-16), respectively, for regorafenib.

TABLE 1

Median OS, months (95% CI)

HR (95% CI)

Zanzalintinib + Atezolizumab

Regorafenib

Geographic region

Asia

11.5 (9.2-13.7)

8.8 (7.8-10.4)

0.77 (0.59-1.00)

Rest of the world

10.9 (9.3-12.3)

9.8 (8.3-10.9)

0.82 (0.68-0.99)

RAS status

Wild type

12.0 (10.1-14.6)

10.4 (8.7-12.3)

0.79 (0.61-1.01)

Mutant

10.3 (9.0-11.9)

8.7 (8.1-9.8)

0.80 (0.66-0.98)

Active liver metastases

Presence

8.9 (8.0-9.9)

7.7 (6.5-8.5)

0.78 (0.65-0.94)

Absence

15.9 (13.5-17.6)

12.8 (10.9-15.5)

0.77 (0.59-1.01)

Prior anti-VEGF antibody treatment

Yes

10.6 (9.3-12.5)

8.8 (8.3-9.9)

0.80 (0.68-0.95)

No

11.5 (8.7-13.5)

11.1 (9.5-12.6)

0.80 (0.56-1.15)

OS = overall survival; CI = confidence interval; HR = hazard ratio; VEGF = vascular endothelial growth factor

Data pertaining to the other dual primary endpoint, OS in patients without liver metastases (non-liver metastases, NLM), were immature at the data cutoff. A prespecified interim analysis showed a trend in OS favoring the combination (15.9 months versus 12.8 months; stratified HR: 0.79; 95% CI: 0.61-1.03; P=0.0875) at a median follow-up of 16.8 months. The trial will proceed to the planned final analysis for this endpoint.

"These detailed results from STELLAR-303 provide further insight into the combination of zanzalintinib and atezolizumab as a potential new option to extend survival in patients with previously treated metastatic colorectal cancer," said Dana T. Aftab, Ph.D., Executive Vice President, Research and Development, Exelixis. "Before the end of this year, we intend to complete the submission of our first new drug application for zanzalintinib as we work toward bringing this combination regimen to a patient community seeking a new and chemotherapy-free option. These data, along with our robust clinical trial program, underscore the progress we are making toward our goal of increasing the scope and scale of the solid tumor types zanzalintinib may help address."

A trend for improvement in PFS with the combination was also observed in the ITT population (stratified HR: 0.68 [95% CI: 0.59–0.79]; median, 3.7 [95% CI: 3.5–3.8] months versus 2.0 [95% CI: 1.9–2.6] months), though statistical superiority cannot be claimed at this time due to the prespecified hierarchical testing strategy. The trend for PFS improvement with zanzalintinib in combination with atezolizumab versus regorafenib was consistent across subgroups.

The safety profiles of zanzalintinib in combination with atezolizumab and of regorafenib were generally consistent with what has been previously observed, and no new safety signals were identified. Grade 3/4 treatment-related adverse events (AEs) occurred in 59% of patients receiving zanzalintinib in combination with atezolizumab and 37% of patients receiving regorafenib. AEs leading to discontinuation of all study treatment occurred in 18% versus 15% of patients, respectively. The most common grade 3/4 treatment-related AEs were hypertension (15% versus 9%, respectively), fatigue (6% versus 2%), diarrhea (6% versus 2%) and proteinuria (6% versus 2%). Deaths considered related to treatment by investigators were two for zanzalintinib, two for atezolizumab, one for the combination and one for regorafenib.

About STELLAR-303
STELLAR-303 (NCT05425940) is a global, multicenter, randomized, phase 3, open-label study that randomized patients 1:1 to either zanzalintinib in combination with atezolizumab (n=451) or regorafenib (n=450). The study includes patients with previously treated non-MSI-high metastatic CRC. The dual primary endpoints of the study are OS in the ITT population and in the NLM subgroup of patients. The ITT population consisted of all randomized patients, regardless of the presence of liver metastases. The NLM subgroup consisted of patients who did not have active liver metastases at baseline as determined by investigator assessment. Secondary endpoints include PFS, objective response rate and duration of response in the ITT population and in the NLM subgroup of patients. More information about the trial is available at ClinicalTrials.gov.

About Zanzalintinib
Zanzalintinib is a novel oral kinase inhibitor that inhibits the activity of the TAM kinases (TYRO3, AXL, MER), MET and VEGF receptors. These kinases play important roles in oncogenic processes including tumor cell proliferation, metastasis, angiogenesis, drug resistance and evasion of antitumor immunity. With zanzalintinib, Exelixis sought to build upon its extensive experience with the target profile of cabozantinib, the company’s flagship medicine, while improving key characteristics, including pharmacokinetic half-life. Zanzalintinib is currently being developed for the treatment of advanced solid tumors, including colorectal cancer, kidney cancer and neuroendocrine tumors.

Zanzalintinib is an investigational agent that is not approved for any use and is the subject of ongoing clinical trials.

About CRC
CRC is the third most common cancer and the second leading cause of cancer-related deaths in the U.S.1 Approximately 154,000 new cases will be diagnosed in the U.S. with around 53,000 expected deaths from the disease in 2025.1 CRC is most frequently diagnosed among people aged 65-74 and is more common in men and in people of non-Hispanic American Indian/Alaska Native descent.2 Nearly a quarter of CRC cases are diagnosed at the metastatic stage, at which point the five-year survival rate is just 16.2%.2 The liver is the most common site for CRC metastasis. Liver metastases significantly impact survival, with a median five-year survival rate of less than 14% when treated with palliative chemotherapy.

(Press release, Exelixis, OCT 20, 2025, View Source [SID1234656814])

On October 20, 2025 GRAIL, Inc. (Nasdaq: GRAL), a healthcare company whose mission is to detect cancer early when it can be cured, reported that it has entered into a securities purchase agreement for a private placement that is expected to result in gross proceeds of approximately $325.0 million, before deducting placement agents’ fees and other expenses.

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The private placement included the participation by new and existing institutional investors, including Deep Track Capital, Farallon Capital Management, Hims & Hers, Braidwell LP, three life sciences investment firms, and a tech and life sciences focused family office investment firm.

GRAIL currently expects to use the net proceeds from the private placement to fund its commercial activities and reimbursement efforts, as well as for working capital and other general corporate purposes.

GRAIL believes its cash, cash equivalents and investments, including the expected net proceeds from the private placement, will provide sufficient funding of planned operations into 2030, not including the previously announced agreement by Samsung C&T and Samsung Electronics to invest $110 million in the Company, subject to closing conditions.

Pursuant to the terms of the securities purchase agreement, GRAIL has agreed to issue and sell 4,639,543 shares of common stock (or pre-funded warrants in lieu thereof) at a price per share of $70.05 (or per pre-funded warrant in lieu thereof, less the nominal exercise price of $0.001 per share).The private placement is expected to close on October 21, 2025, subject to the satisfaction of customary closing conditions.

Morgan Stanley acted as lead placement agent and Goldman Sachs & Co. LLC acted as joint placement agent for the private placement.

The securities sold in this private placement, including the shares of common stock underlying the pre-funded warrants, have not been registered under the Securities Act of 1933, as amended, or applicable state securities laws, and may not be offered or sold in the United States except pursuant to an effective registration statement or an applicable exemption from the registration requirements. GRAIL granted registration rights to the purchasers in the private placement and has agreed to file a registration statement with the Securities and Exchange Commission registering the resale of the shares of common stock and the shares of common stock underlying the pre-funded warrants issued in the private placement.

This press release shall not constitute an offer to sell or the solicitation of an offer to buy any securities described herein, nor shall there be any sale of these securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to the registration or qualification under the securities laws of any such state or jurisdiction.

(Press release, Grail, OCT 20, 2025, View Source [SID1234656830])

On October 20, 2025 Light Chain Bioscience, a clinical-stage biotechnology company advancing the next generation of bispecific antibodies to treat cancer, reported positive results from a Phase 1/1b study of NI-1801 as a monotherapy and in combination with pembrolizumab in heavily pretreated Platinum Resistant Ovarian Cancer (PROC) patients. The results were reported in a Proffered Paper oral presentation at the 2025 European Society of Medical Oncology (ESMO) (Free ESMO Whitepaper) Congress in Berlin.

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NI-1801 is a first-in-class mesothelin x CD47 bispecific antibody that selectively targets the innate immune checkpoint CD47 on mesothelin-expressing cancer cells.

The Phase 1b study of NI-1801 in combination with pembrolizumab showed an overall survival (OS) rate at one year of 75.2% in 21 patients at the data cutoff (August 2025), with a median follow-up of 11 months (15 patients alive and 6 patients ongoing). The immature progression-free survival (PFS) rate was 32.7% at 9 months with a confirmed response rate by RECIST¹ criteria of 28.5% and a clinical benefit rate (CBR) of 48%. In the monotherapy Phase 1 study, NI-1801 showed an OS rate at one year of 35.3% in 21 patients, with a median follow-up of 19 months and 7 patients alive at the data cutoff.

NI-1801 was safe and well tolerated as monotherapy and in combination with pembrolizumab.

Platinum-resistant ovarian cancer patients treated in this study received ≥ 4 prior chemotherapy lines, representing the most fragile subpopulation of ovarian cancer patients.

With standard of care chemotherapy, previous studies reported a median OS ranging from 9 to 12 months, in a PROC patient population that received at least one chemotherapy line.²

Jose Saro, MD, Chief Medical Officer, Light Chain Bioscience, said: "We are delighted to report substantial clinical benefit of NI-1801 in this subpopulation of platinum-resistant ovarian cancer patients. The overall survival rate reported for NI-1801 in combination with pembrolizumab is particularly noteworthy in a chemotherapy-free regimen, and it is the first example of a combined immunotherapy approach to show effectiveness in this hard-to-treat ovarian cancer patient population. These findings indicate the potential of NI-1801 to positively impact the management of this devastating disease."

Professor Thibault de la Motte Rouge, MD, PhD, Research Director, Centre Eugène Marquis, France, and the investigator presenting the data at 2025 ESMO (Free ESMO Whitepaper) said: "Patients with platinum-resistant ovarian cancer face poor survival outcomes, and current treatment options remain limited, highlighting the urgent need for novel therapeutic approaches. To date, clinical results with immunotherapy in ovarian cancer have been largely disappointing, although the recent Phase III Keynote-B96 trial has shown a benefit with pembrolizumab in patients with early relapsing platinum-resistant disease. In this context, our study demonstrates that NI-1801, administered either as monotherapy or in combination with pembrolizumab, provides durable clinical benefit and meaningful survival improvement, with a favorable safety and tolerability profile. These findings support a therapeutic strategy that synergistically engages both innate and adaptive immune pathways – by targeting CD47 within the tumor microenvironment and blocking the PD-L1/PD-1 axis – as a promising chemotherapy-free approach to enhance immunotherapy efficacy and improve outcomes in this high unmet-need population."

Nicolas Fischer, CEO of Light Chain Bioscience, said: "These promising results confirm our long-held conviction that bispecific antibodies targeting CD47 have a fundamentally different therapeutic window than anti-CD47 monoclonal antibodies, which have faced major setbacks. These findings showed that, in a challenging subpopulation where immune exhaustion and tumor heterogeneity are pronounced, combining blockade of innate and adaptive immune pathways can overcome the ovarian tumors’ immunosuppressive barriers, improving the immunotherapy success rate, which is traditionally low for this tumor type."

Details of the Proffered Paper Oral Presentation

Title (#1512O): NI-1801, a mesothelin x CD47 bispecific antibody: Safety and activity as single agent and in combination with pembrolizumab, in heavily pretreated (≥ 4 prior lines) mesothelin expressing platinum resistant epithelial ovarian cancer patients

Presenter: Professor Thibault de la Motte Rouge, MD, PhD, Research Director, Centre Eugène Marquis, Rennes, France

Lecture Date and Time: Monday 20 October – 10:55 – 11:05

About ovarian cancer

Ovarian cancer accounts for approximately 200,000 deaths worldwide annually.² It is a heterogeneous disease, showing major differences in terms of its incidence, tumor behavior, and outcomes across histological subtypes. Treatment options for platinum-resistant recurrence cases are limited, with no effective therapies that significantly prolong the prognosis.

About NI-1801

Light Chain Bioscience’s most advanced asset, NI-1801, is a first-in-class bispecific antibody selectively targeting the innate immune checkpoint CD47 on mesothelin-expressing cancer cells, as a potential treatment for ovarian and other mesothelin+ cancers. NI-1801 is being evaluated in a Phase 1 trial in patients with heavily pretreated platinum-resistant ovarian cancer (PROC). NI-1801 is also being evaluated in a Phase 2 randomized trial in PROC patients having received 1-3 prior chemotherapy lines.

(Press release, Light Chain Bioscience, OCT 20, 2025, View Source [SID1234656846])

On October 20, 2025 Alphamab Oncology (stock code: 9966.HK) and CSPC Pharmaceutical Group Co., Ltd. ("CSPC") (Stock Code: 1093.HK) jointly reported that biparatopic HER2-targeting antibody-drug conjugate (ADC) JSKN003 has been granted another breakthrough therapy designation by the Center for Drug Evaluation (CDE) of the National Medical Products Administration (NMPA) for the indication of monotherapy for the treatment of HER2-positive advanced colorectal cancer (CRC) in patients who have failed prior treatments with oxaliplatin, fluorouracil and irinotecan (Press release, Alphamab, OCT 20, 2025, View Source [SID1234656989]). Previously, JSKN003 had received breakthrough therapy designation from the CDE for platinum-resistant ovarian cancer (PROC) (not restricted by HER2 expression), as well as clinical trial approval from the U.S. Food and Drug Administration (FDA). It has also been granted Orphan Drug Designation by the U.S. FDA for gastric and gastroesophageal junction cancer. This latest designation in colorectal cancer further underscores its clinical value and global development potential across multiple refractory tumor types.

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Colorectal cancer is among the most common malignancies worldwide. According to data from the International Agency for Research on Cancer (IARC), there were approximately 1.93 million newly diagnosed cases and about 903,900 deaths attributed to CRC globally in 2022, ranking third in incidence and second in mortality among all cancers. In China, CRC has the second-highest incidence after lung cancer, with over 500,000 new cases annually and a continuing upward trend. There are currently no HER2-targeted therapies approved in China for CRC. For patients with HER2-positive advanced CRC who have failed prior treatments with oxaliplatin, fluorouracil and irinotecan, the median progression-free survival (mPFS) of approved therapies is only 2.0 to 3.7 months, and the median overall survival (mOS) is approximately 7 to 10 months. There remains a significant unmet clinical need within this patient population.

Clinical studies demonstrated that JSKN003 monotherapy exhibited notable efficacy and a favorable safety profile in patients with HER2-positive advanced CRC, showing meaningful clinical advantages over existing therapeutic options. As of June 30, 2025, a total of 33 patients with HER2-positive advanced metastatic CRC, were enrolled and received JSKN003 monotherapy in a phase I (dose escalation and expansion) and phase II (cohort expansion) clinical study in China (JSKN003-102, NCT05744427), with 42.4% of these patients having previously received 3 or more prior lines of antitumor therapy. Among 32 efficacy-evaluable patients , the overall response rate (ORR) was 68.8%, the disease control rate (DCR) was 96.9%. Additionally, among 31 BRAF V600E wild-type patients, the ORR was 71.0%, the DCR was 100%, and median duration of response (DoR) was 9.89 months, the median PFS achieved 11.04 months, with a 9-month PFS rate of 66.6%. In terms of safety, the median follow-up time was 9.26 months. 7 patients experienced Grade 3 or above treatment-related adverse events (TRAEs). There were no TRAEs led to discontinuation or death. Detailed data from the study were presented recently at the 2025 European Society for Medical Oncology Congress (ESMO Congress 2025). By comparison, in a similar patient population, trastuzumab deruxtecan (DS-8201) previously reported an ORR of 37.8 %, a PFS of 5.8 months, and Grade 3 or above adverse events in nearly 50 % of patients.

JSKN003 is currently being evaluated in multiple Phase II and Phase III clinical studies in China for the treatment of various solid tumors including breast cancer, ovarian cancer, and gastric cancer. This latest breakthrough therapy designation for JSKN003 is expected to further accelerate its development and review processes, with the aim of bringing benefits to more cancer patients sooner.

About JSKN003

JSKN003 is Alphamab Oncology’s first bispecific ADC, developed based on HER2-targeting bsAb KN026, and utilizing the proprietary glycan-specific conjugation platform. It binds to two HER2 epitopes on tumor cells and release topoisomerase I inhibitors (TOPIi) through cellular endocytosis, exerting anti-tumor effects. Compared to similar ADCs, JSKN003 demonstrates better serum stability, reduced hematological toxicity, and stronger tumor inhibition and bystander effect, resulting in significantly wider therapeutic window.

Clinical data in heavily pretreated advanced solid tumors have shown high-security profile, with promising efficacy of JSKN003, particularly in platinum-resistant ovarian cancer (PROC), HER2-high/low breast cancer (BC), HER2-positive colorectal cancer (CRC)/ gastric cancer (GC) and other HER2-expressing tumors. JSKN003 was granted breakthrough therapy designation by CDE for platinum-resistant recurrent epithelial ovarian cancer, primary peritoneal cancer, or fallopian tube cancer and HER2-positive advanced colorectal cancer that has failed prior oxaliplatin, fluorouracil, and irinotecan therapy. It has also been granted Orphan Drug Designation (ODD) by the U.S. Food and Drug Administration (FDA) for GC and gastroesophageal junction cancer (GEJ). Three Phase III trials in HER2-low expressing BC, PROC, and HER2-positive BC and multiple Phase II studies are underway.

In September 2024, the Company entered a licensing agreement with JMT-Bio Technology Co., Ltd. ("JMT-Bio"), a wholly-owned subsidiary of CSPC Pharmaceutical Group Co., Ltd. ("CSPC") (stock code: 1093.HK). JMT-Bio was granted the exclusive license and sublicense rights to develop, sell, offer for sale and commercialize JSKN003, for tumor-related indications in mainland China (excluding Hong Kong, Macau or Taiwan). Alphamab retains exclusive production rights for JSKN003.

On October 20, 2025 Immatics N.V. (NASDAQ: IMTX, "Immatics" or the "Company"), a clinical-stage biopharmaceutical company and the global leader in precision targeting of PRAME, reported the presentation of updated data from 16 patients with metastatic uveal melanoma treated with anzu-cel PRAME cell therapy.

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The uveal melanoma data from the ongoing Phase 1b trial will be presented today at the European Society for Medical Oncology (ESMO) (Free ESMO Whitepaper) Congress 2025 during the Presidential Symposium III by Sapna Patel, M.D., Professor of Medicine, University of Colorado Cancer Center. The slides are accessible in the ‘Events & Presentations’ section of the Investors & Media section of the Company’s website.

"Patients with metastatic uveal melanoma face a poor prognosis and represent a population in need of better outcomes, given the limited options currently available," said Sapna Patel, M.D. "I believe the results with anzu-cel presented today signal a much-needed breakthrough for patients with metastatic uveal melanoma. These findings highlight the potential of anzu-cel to redefine the treatment paradigm for uveal melanoma and bring new hope to patients who urgently need more effective options."

"Our goal is to leverage every opportunity to bring innovative PRAME therapies to patients with limited treatment options," said Cedrik Britten, M.D., Chief Medical Officer at Immatics. "The continued strong clinical data presented today reinforce our conviction in maximizing the potential of our PRAME cell therapy, anzu-cel, and expanding its development into metastatic uveal melanoma, a rare cancer with very high unmet medical need. We are excited to further execute on our PRAME franchise and bring meaningful progress to patients in need."

Presidential Symposium III Presentation Summary – Anzu-cel Phase 1b Trial

Patient Population: Difficult-to-treat patient population with metastatic uveal melanoma

As of September 24, 2025, 16 patients with metastatic uveal melanoma were administered a one-time infusion of anzu-cel at the recommended Phase 2 dose (RP2D, 1 to 10 billion total TCR T cells) as part of the anzu-cel Phase 1b dose expansion. Patients received a median infused TCR T-cell dose of ~4 billion (range 1.62 – 8.43 billion TCR T cells) and had a median of 2 lines of prior systemic treatments. Patients had a median target lesion sum of a diameter of 103 mm (ranging from 31 to 210 mm), and 81% of patients had liver and extrahepatic metastasis.

Anti-tumor Activity and Durability: Continued strong anti-tumor activity and durability of anzu-cel PRAME cell therapy

Updated data of a one-time infusion of anzu-cel PRAME cell therapy demonstrated promising benefit in a difficult-to-treat population with limited effective treatment options:

Confirmed objective response rate (cORR) of 67% (10/151)
Disease control rate (DCR) of 88% (14/16)
Median duration of response (mDOR) of 11 months (min 4.4, max 31.6 months)
Median progression-free survival (mPFS) of 8.5 months (min 1.4, max 32.9) at a mFU of 10.4 months. The PFS rate was 69% at six months and 39% at 12 months
Median overall survival (mOS) not reached (min 4.3+, max 34.2+ months) at a mFU of 14.3 months. The OS rate was 71% at 12 months

Anti-tumor activity was observed in liver and extrahepatic metastases, including lung, lymph node, abdomen/peritoneum and others. 14/16 patients had target lesions in the liver and treatment with anzu-cel led to a median shrinkage in liver target lesion size of 49.6%.

Notably, 11 out of the 16 patients received a TCR bispecific (ten gp-100-targeting, one PRAME-targeting) as prior systemic treatment line, and thereof, six achieved a confirmed partial response, one a partial response and three stable disease. These results demonstrate anti-tumor activity of anzu-cel in patients who received prior TCR-based therapies.

Safety: Favorable tolerability in uveal melanoma, generally consistent with full anzu-cel tolerability profile

The most frequent treatment-emergent adverse events (TEAs) were anticipated cytopenias associated with lymphodepletion. Expected and manageable cytokine release syndrome (CRS) was mostly Grade 1 or 2, which is consistent with the mechanism of action (Grade 1: 37.5%, Grade 2: 43.8%, Grade 3: 18.8%, Grade 4: 0%). No patients experienced long-term CRS, and most CRS was resolved by day 14. No anzu-cel-related Grade 5 events were observed.

Tolerability in the uveal melanoma subset was generally consistent with the full anzu-cel tolerability profile in the Phase 1b.

Development Path for Anzu-cel in Metastatic Uveal Melanoma

Based on the promising clinical data in patients with metastatic uveal melanoma, Immatics has initiated a Phase 2 cohort with approximately 30 uveal melanoma patients planned. The cohort is being conducted at select centers in the U.S. and Germany with deep expertise in uveal melanoma. Given the high prevalence of PRAME expression in uveal melanoma, prospective PRAME testing is no longer required for inclusion in the clinical trial.

The consistent tolerability, anti-tumor activity and pharmacokinetic profile of anzu-cel across both uveal and cutaneous melanoma provide a strong rationale for pursuing a parallel late-stage development strategy to serve both patient populations.

About PRAME
PRAME is a target expressed in more than 50 cancers. Immatics is the global leader in precision targeting of PRAME and has the broadest PRAME franchise with the most PRAME indications and modalities. The Immatics PRAME franchise currently includes three product candidates, two therapeutic modalities and a combination therapy that target PRAME: anzu-cel (IMA203) PRAME cell therapy, IMA203CD8 PRAME cell therapy (GEN2), IMA402 PRAME bispecific, anzu-cel in combination with Moderna’s PRAME cell therapy enhancer.

About Anzu-cel (IMA203) PRAME Cell Therapy
Anzu-cel (anzutresgene autoleucel; IMA203) is a PRAME-directed TCR T-cell therapy engineered to recognize an intracellular PRAME-derived peptide presented by HLA-A*02:01 on the cell surface and initiate a potent and specific anti-tumor response. Anzu-cel PRAME cell therapy is currently being evaluated in a registration-enabling randomized controlled Phase 3 trial, "SUPRAME," in patients with unresectable or metastatic cutaneous melanoma who have disease progression on or after treatment with at least one checkpoint inhibitor. In parallel, the Phase 1b clinical trial in patients with PRAME cancers is ongoing with a focus on uveal melanoma.

(Press release, Immatics, OCT 20, 2025, View Source [SID1234656815])