TALZENNA Plus XTANDI Significantly Improves Radiographic Progression-Free Survival in Metastatic Prostate Cancer

On March 19, 2026 Pfizer Inc. (NYSE: PFE) reported positive topline results from the Phase 3 TALAPRO-3 study of TALZENNA (talazoparib), an oral poly ADP-ribose polymerase (PARP) inhibitor, in combination with XTANDI (enzalutamide), an androgen receptor pathway inhibitor (ARPI), in people with homologous recombination repair (HRR) gene-mutated metastatic castration-sensitive prostate cancer (mCSPC), also known as metastatic hormone-sensitive prostate cancer (mHSPC).

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The study met its primary endpoint, with TALZENNA plus XTANDI demonstrating a statistically significant and clinically meaningful improvement in radiographic progression-free survival (rPFS), compared to placebo plus XTANDI. The results markedly exceeded the pre-specified target hazard ratio of 0.63, with the majority of patients remaining progression-free at the time of analysis. Consistent efficacy benefit was also observed in patients whose tumors harbored BRCA and non-BRCA HRR gene alterations.

"Current treatment approaches leave many patients with HRR gene-mutated metastatic castration-sensitive prostate cancer vulnerable to early disease progression," said Neeraj Agarwal, M.D., FASCO, Professor and Presidential Endowed Chair of Cancer Research at Huntsman Cancer Institute at the University of Utah, and global lead investigator for TALAPRO-3. "The TALAPRO-3 results demonstrate that treatment with TALZENNA in combination with XTANDI earlier in the disease course significantly extends the time patients can live without their cancer worsening."

At the time of the interim analysis, results showed a strong trend toward improved overall survival (OS), a key secondary endpoint. Benefits were also observed in other secondary endpoints, including overall response rate, duration of response, and time to Prostate-Specific Antigen (PSA) progression. The safety of TALZENNA plus XTANDI was consistent with the known safety profile of each medicine, and no new safety signals were identified.

Prostate cancer is the second most common cancer in men worldwide, with an estimated 1.4 million new cases diagnosed globally in 20221 and 330,000 new cases anticipated in the United States in 2026.2 mCSPC, is a form of advanced prostate cancer that has spread beyond the prostate but is still sensitive to androgen inhibition.3 Despite recent treatment advances, 50% to 65% of patients with mCSPC progress to metastatic castration-resistant prostate cancer (mCRPC) within two years, with increased risk in HRR gene-mutated patients.4-6

"Alterations in DNA damage repair genes, such as HRR genes, are found in approximately 25% of metastatic prostate cancers and associated with a worse prognosis and are less responsive to current standards of care, representing a group with a high unmet need," said Jeff Legos, Chief Oncology Officer, Pfizer. "TALZENNA plus XTANDI is already a standard of care in HRR gene-mutated metastatic castration-resistant prostate cancer, and these unprecedented results demonstrate the potential to deliver benefit earlier in the disease course. These findings underscore Pfizer’s leadership in precision medicine and commitment to bringing more personalized treatment options to people living with prostate cancer."

TALZENNA plus XTANDI in HRR gene-mutated mCSPC is an investigational treatment regimen. The TALAPRO-3 results will be submitted for presentation at an upcoming medical congress and will be discussed with global health authorities for potential regulatory submissions.

TALZENNA plus XTANDI is currently approved in 60 countries, including in the United States for adults with HRR gene-mutated mCRPC and in the European Union for adults with mCRPC in whom chemotherapy is not clinically indicated.

About TALAPRO-3

The Phase 3 TALAPRO-3 trial is a multicenter, randomized, double-blind, placebo-controlled study that enrolled 599 patients with mCSPC [with ≤3 months of ADT (chemical or surgical) with or without an approved ARPI in the mCSPC setting] at sites in the U.S., Canada, Europe, South America, and the Asia-Pacific region. Patients with histologically/cytologically confirmed adenocarcinoma of the prostate without neuroendocrine differentiation, small cell, or signet cell features and with alterations in one or more HRR genes (as per HRR12 gene panel) in the trial were randomized to receive TALZENNA 0.5 mg/day plus XTANDI 160mg/day, or placebo plus XTANDI 160mg/day.

The primary endpoint of the trial is investigator-assessed radiographic progression-free survival (rPFS), defined as the time from the date of randomization to radiographic progression in soft tissue per Response Evaluation Criteria in Solid Tumors version 1.1 (RECIST 1.1), or in bone per Prostate Cancer Working Group 3 (PCWG3) criteria by investigator assessment, or death, whichever occurs first. Secondary endpoints include overall survival (OS), objective response rate (ORR), duration of response (DOR), prostate-specific antigen (PSA) response, and patient-reported outcomes.

For more information on the TALAPRO-3 trial (NCT04821622), go to www.clinicaltrials.gov.

About TALZENNA (talazoparib)

TALZENNA is an oral inhibitor of poly ADP-ribose polymerase (PARP), which plays a role in DNA damage repair. Preclinical studies have demonstrated that TALZENNA blocks PARP enzyme activity and traps PARP at the site of DNA damage, leading to decreased cancer cell growth and cancer cell death.

TALZENNA was initially approved in the U.S., EU, and multiple other regions as a single agent for the treatment of adult patients with deleterious or suspected deleterious gBRCAm HER2-negative locally advanced or metastatic breast cancer.

TALZENNA in combination with XTANDI was approved by the U.S. Food and Drug Administration (FDA) for the treatment of adult patients with HRR gene-mutated mCRPC in June 2023. The combination was also approved by the European Commission in January 2024 for the treatment of adult patients with mCRPC in whom chemotherapy is not clinically indicated. TALZENNA in combination with XTANDI is approved in 60 countries, indications vary by country.

TALZENNA (talazoparib) Indication in the U.S.

TALZENNA is a poly (ADP-ribose) polymerase (PARP) inhibitor indicated for:

HRR gene-mutated mCRPC:

In combination with enzalutamide for the treatment of adult patients with homologous recombination repair (HRR) gene-mutated metastatic castration-resistant prostate cancer (mCRPC).
Breast Cancer:

As a single agent, for the treatment of adult patients with deleterious or suspected deleterious germline BRCA-mutated (gBRCAm) HER2-negative locally advanced or metastatic breast cancer. Select patients for therapy based on an FDA-approved companion diagnostic for TALZENNA.
TALZENNA (talazoparib) Important Safety Information

WARNINGS and PRECAUTIONS

Myelodysplastic Syndrome/Acute Myeloid Leukemia (MDS/AML), including cases with a fatal outcome, has been reported in patients who received TALZENNA. Overall, MDS/AML has been reported in 0.4% (3 out of 788) of solid tumor patients treated with TALZENNA as a single agent in clinical studies. In TALAPRO-2, MDS/AML occurred in 2 out of 511 (0.4%) patients treated with TALZENNA and enzalutamide and in 0 out of 517 (0%) patients treated with placebo and enzalutamide. The durations of TALZENNA treatment in these 5 patients prior to developing MDS/AML were 0.3, 1, 2, 3, and 5 years. Most of these patients had received previous chemotherapy with platinum agents and/or other DNA damaging agents including radiotherapy.

Do not start TALZENNA until patients have adequately recovered from hematological toxicity caused by previous chemotherapy. Monitor blood counts monthly during treatment with TALZENNA. For prolonged hematological toxicities, interrupt TALZENNA and monitor blood counts weekly until recovery. If counts do not recover within 4 weeks, refer the patient to a hematologist for further investigations including bone marrow analysis and blood sample for cytogenetics. If MDS/AML is confirmed, discontinue TALZENNA.

Myelosuppression consisting of anemia, neutropenia, and/or thrombocytopenia, have been reported in patients treated with TALZENNA. In TALAPRO-2, Grade ≥3 anemia, neutropenia, and thrombocytopenia were reported, respectively, in 48%, 19%, and 9% of patients receiving TALZENNA and enzalutamide. Forty-two percent of patients (216/511) required a red blood cell transfusion, including 25% (127/511) who required more than one transfusion. Discontinuation due to anemia, neutropenia, and thrombocytopenia occurred, respectively, in 8%, 3%, and 0.4% of patients.

Withhold TALZENNA until patients have adequately recovered from hematological toxicity caused by previous therapy. Monitor blood counts monthly during treatment with TALZENNA. If hematological toxicities do not resolve within 28 days, discontinue TALZENNA and refer the patient to a hematologist for further investigations including bone marrow analysis and blood sample for cytogenetics.

Embryo-Fetal Toxicity TALZENNA can cause fetal harm when administered to pregnant women. Advise male patients with female partners of reproductive potential or who are pregnant to use effective contraception during treatment and for 4 months following the last dose of TALZENNA.

ADVERSE REACTIONS

Serious adverse reactions reported in >2% of patients included anemia (9%) and fracture (3%). Fatal adverse reactions occurred in 1.5% of patients, including pneumonia, COVID infection, and sepsis (1 patient each).

The most common adverse reactions (≥ 10%, all Grades), including laboratory abnormalities, for patients in the TALAPRO-2 study who received TALZENNA with enzalutamide vs patients receiving placebo with enzalutamide were hemoglobin decreased (79% vs 34%), neutrophils decreased (60% vs 18%), lymphocytes decreased (58% vs 36%), fatigue (49% vs 40%), platelets decreased (45% vs 8%), calcium decreased (25% vs 11%), nausea (21% vs 17%), decreased appetite (20% vs 14%), sodium decreased (22% vs 20%), phosphate decreased (17% vs 13%), fractures (14% vs 10%), magnesium decreased (14% vs 12%), dizziness (13% vs 9%), bilirubin increased (11% vs 7%), potassium decreased (11% vs 7%), and dysgeusia (10% vs 4.5%).

Clinically relevant adverse reactions in <10% of patients who received TALZENNA with enzalutamide included abdominal pain (9%), vomiting (9%), alopecia (7%), dyspepsia (4%), venous thromboembolism (3%) and stomatitis (2%).

DRUG INTERACTIONS

Coadministration with P-gp inhibitors The effect of coadministration of P-gp inhibitors on talazoparib exposure when TALZENNA is taken with enzalutamide has not been studied. Monitor patients for increased adverse reactions and modify the dosage as recommended for adverse reactions when TALZENNA is coadministered with a P-gp inhibitor.

Coadministration with BCRP inhibitors Monitor patients for increased adverse reactions and modify the dosage as recommended for adverse reactions when TALZENNA is coadministered with a BCRP inhibitor. Coadministration of TALZENNA with BCRP inhibitors may increase talazoparib exposure, which may increase the risk of adverse reactions.

USE IN SPECIFIC POPULATIONS

Males of Reproductive Potential Based on animal studies, TALZENNA may impair fertility.

Renal Impairment The recommended dosage of TALZENNA for patients with moderate renal impairment (CLcr 30 – 59 mL/min) is 0.35 mg taken orally once daily with enzalutamide. The recommended dosage of TALZENNA for patients with severe renal impairment (CLcr 15 – 29 mL/min) is 0.25 mg taken orally once daily with enzalutamide. No dose adjustment is required for patients with mild renal impairment. TALZENNA has not been studied in patients requiring hemodialysis.

Please see full U.S. Prescribing Information and Patient Information for TALZENNA (talazoparib) at www.TALZENNA.com.

About XTANDI (enzalutamide)

XTANDI (enzalutamide) is an androgen receptor pathway inhibitor. XTANDI is a standard of care and has received regulatory approvals in one or more countries around the world for use in people with metastatic hormone-sensitive prostate cancer (mHSPC), metastatic castration-resistant prostate cancer (mCRPC), non-metastatic castration-resistant prostate cancer (nmCRPC) and non-metastatic hormone-sensitive prostate cancer (nmHSPC) with high-risk biochemical recurrence (BCR). XTANDI is currently approved for one or more of these indications in more than 80 countries, including in the United States, European Union and Japan. Over 1.5 million patients have been treated with XTANDI globally.7

About XTANDI (enzalutamide) and Important Safety Information

XTANDI (enzalutamide) is indicated for the treatment of patients with:

castration-resistant prostate cancer (CRPC)
metastatic castration-sensitive prostate cancer (mCSPC)
nonmetastatic castration sensitive prostate cancer (nmCSPC) with biochemical recurrence at high risk for metastasis (high-risk BCR)
Important Safety Information

Warnings and Precautions

Seizure occurred in 0.6% of patients receiving XTANDI in eight randomized clinical trials. In a study of patients with predisposing factors for seizure, 2.2% of XTANDI-treated patients experienced a seizure. It is unknown whether anti-epileptic medications will prevent seizures with XTANDI. Patients in the study had one or more of the following predisposing factors: use of medications that may lower the seizure threshold, history of traumatic brain or head injury, history of cerebrovascular accident or transient ischemic attack, and Alzheimer’s disease, meningioma, or leptomeningeal disease from prostate cancer, unexplained loss of consciousness within the last 12 months, history of seizure, presence of a space occupying lesion of the brain, history of arteriovenous malformation, or history of brain infection. Advise patients of the risk of developing a seizure while taking XTANDI and of engaging in any activity where sudden loss of consciousness could cause serious harm to themselves or others. Permanently discontinue XTANDI in patients who develop a seizure during treatment.

Posterior Reversible Encephalopathy Syndrome (PRES) There have been reports of PRES in patients receiving XTANDI. PRES is a neurological disorder that can present with rapidly evolving symptoms including seizure, headache, lethargy, confusion, blindness, and other visual and neurological disturbances, with or without associated hypertension. A diagnosis of PRES requires confirmation by brain imaging, preferably MRI. Discontinue XTANDI in patients who develop PRES.

Hypersensitivity reactions, including edema of the face (0.5%), tongue (0.1%), or lip (0.1%) have been observed with XTANDI in eight randomized clinical trials. Pharyngeal edema has been reported in post-marketing cases. Advise patients who experience any symptoms of hypersensitivity to temporarily discontinue XTANDI and promptly seek medical care. Permanently discontinue XTANDI for serious hypersensitivity reactions.

Ischemic Heart Disease In the combined data of five randomized, placebo-controlled clinical studies, ischemic heart disease occurred more commonly in patients on the XTANDI arm compared to patients on the placebo arm (3.5% vs 2%). Grade 3-4 ischemic events occurred in 1.8% of patients on XTANDI versus 1.1% on placebo. Ischemic events led to death in 0.4% of patients on XTANDI compared to 0.1% on placebo. Monitor for signs and symptoms of ischemic heart disease. Optimize management of cardiovascular risk factors, such as hypertension, diabetes, or dyslipidemia. Discontinue XTANDI for Grade 3-4 ischemic heart disease.

Falls and Fractures occurred in patients receiving XTANDI. Evaluate patients for fracture and fall risk. Monitor and manage patients at risk for fractures according to established treatment guidelines and consider use of bone-targeted agents. In the combined data of five randomized, placebo-controlled clinical studies, falls occurred in 12% of patients treated with XTANDI compared to 6% of patients treated with placebo. Fractures occurred in 13% of patients treated with XTANDI and in 6% of patients treated with placebo.

Embryo-Fetal Toxicity The safety and efficacy of XTANDI have not been established in females. XTANDI can cause fetal harm and loss of pregnancy when administered to a pregnant female. Advise males with female partners of reproductive potential to use effective contraception during treatment with XTANDI and for 3 months after the last dose of XTANDI.

Dysphagia or Choking Severe dysphagia or choking, including events that could be life-threatening requiring medical intervention or fatal, can occur due to XTANDI product size. Advise patients to take each capsule or tablet whole with a sufficient amount of water to ensure that all medication is successfully swallowed. Consider use of a smaller tablet size of XTANDI in patients who have difficulty swallowing. Discontinue XTANDI for patients who cannot swallow capsules or tablets.

Interference with Immunoassay Measurement of Digoxin XTANDI can interfere with certain digoxin immunoassays (e.g., Chemiluminescent Microparticle Immunoassays), resulting in falsely elevated digoxin plasma concentration results. Notify the laboratory conducting the digoxin plasma concentration assay to use an appropriate method in patients receiving XTANDI and digoxin.

Adverse Reactions (ARs)

In the data from the five randomized placebo-controlled trials, the most common ARs (≥ 10%) that occurred more frequently (≥ 2% over placebo) in XTANDI-treated patients were musculoskeletal pain, fatigue, hot flush, constipation, decreased appetite, diarrhea, hypertension, hemorrhage, fall, fracture, and headache. In the bicalutamide-controlled study, the most common ARs (≥ 10%) reported in XTANDI-treated patients were asthenia/fatigue, back pain, musculoskeletal pain, hot flush, hypertension, nausea, constipation, diarrhea, upper respiratory tract infection, and weight loss.

In EMBARK, the placebo-controlled study of nonmetastatic CSPC (nmCSPC) with high-risk biochemical recurrence (BCR) patients, Grade 3 or higher adverse reactions during the total duration of treatment were reported in 46% of patients treated with XTANDI plus leuprolide, 50% of patients receiving XTANDI as a single agent, and 43% of patients receiving placebo plus leuprolide. Permanent treatment discontinuation due to adverse reactions during the total duration of treatment as the primary reason was reported in 21% of patients treated with XTANDI plus leuprolide, 18% of patients receiving XTANDI as a single agent, and 10% of patients receiving placebo plus leuprolide.

Lab Abnormalities: Lab abnormalities that occurred in ≥ 5% of patients, and more frequently (> 2%) in the XTANDI arm compared to placebo in the pooled, randomized, placebo-controlled studies are hemoglobin decrease, neutrophil count decreased, white blood cell decreased, hyperglycemia, hypermagnesemia, hyponatremia, hypophosphatemia, and hypercalcemia.

Hypertension: In the combined data from five randomized placebo-controlled clinical trials, hypertension was reported in 14.2% of XTANDI patients and 7.4% of placebo patients. Hypertension led to study discontinuation in < 1% of patients in each arm.

Drug Interactions

Effect of Other Drugs on XTANDI Avoid coadministration with strong CYP2C8 inhibitors. If coadministration cannot be avoided, reduce the dosage of XTANDI. Avoid coadministration with strong CYP3A4 inducers. If coadministration cannot be avoided, increase the dosage of XTANDI.

Effect of XTANDI on Other Drugs Avoid coadministration with certain CYP3A4, CYP2C9, and CYP2C19 substrates for which minimal decrease in concentration may lead to therapeutic failure of the substrate. If coadministration cannot be avoided, increase the dosage of these substrates in accordance with their Prescribing Information. In cases where active metabolites are formed, there may be increased exposure to the active metabolites.

Please access this link for XTANDI’S US Full Prescribing Information for additional safety information.

(Press release, Pfizer, MAR 19, 2026, View Source [SID1234663768])

Oncoinvent secures new patent expanding protection for Radspherin

On March 19, 2026 Oncoinvent (OSE: ONCIN), a biotech company developing a receptor-independent alpha radiopharmaceutical to eradicate cancer cells in the abdominal cavity after surgery with a single, targeted dose, reported that the China National Intellectual Property Administration (CNIPA) has granted a new patent for Radspherin, the Company’s lead product candidate, marking the first approval worldwide within this patent family.

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The newly granted patent covers a key technical development to optimize Radspherin’s performance, specifically the size-controlled calcium carbonate microparticle technology. With this grant, patent protection for Radspherin in China is expanded in scope and duration, with a term extending to 2041. This complements the existing composition‑of‑matter patent, which is valid until 2035 (2036 in some jurisdictions). Corresponding patent applications from the same patent family remain under review in several major jurisdictions worldwide.

"We are very pleased to obtain this additional patent in China for Radspherin," said Oystein Soug, Chief Executive Officer at Oncoinvent. "As we continue to advance clinical development, it is essential that our innovation is backed by a strong and durable global intellectual property position."

(Press release, Oncoinvent, MAR 19, 2026, https://www.oncoinvent.com/press-release/oncoinvent-secures-new-patent-expanding-protection-for-radspherin/ [SID1234663708])

NuCana Reports Fourth Quarter and Year-End 2025 Financial Results and Provides Business Update

On March 19, 2026 NuCana plc (NASDAQ: NCNA) ("NuCana" or the "Company") reported financial results for the fourth quarter and year ended December 31, 2025 and provided an update on its clinical development program with its two lead anti-cancer medicines.

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"We are excited to enter 2026 with significant momentum as we continue to advance the development of our ProTide pipeline with the aim to deliver significantly improved treatment outcomes for patients with cancer," said Hugh S. Griffith, NuCana’s Chief Executive Officer. "In late 2025, we presented compelling data from our Phase 2 NuTide:701 study at the annual European Society for Medical Oncology Immuno-Oncology Congress, evaluating NUC-7738 in combination with pembrolizumab in patients with PD-1 inhibitor-resistant metastatic melanoma. These data demonstrated a favorable safety profile and evidence of clinical activity, including two partial responses, one of which was confirmed, and multiple cases of stable disease, including one patient whose disease converted to a complete metabolic response with no detectable active disease."

Mr. Griffith continued, "We expect to complete enrollment in the Phase 2 NuTide:701 expansion study in the first half of 2026, with final data expected later this year. We also plan to obtain regulatory guidance from the U.S. Food and Drug Administration regarding a potential registrational pathway for NUC-7738 in melanoma. In parallel, we are evaluating additional indications and combination strategies to further explore the therapeutic potential of NUC-7738."

Mr. Griffith concluded, "Earlier this year we appointed Theresa Bruce as our Chief Operating Officer. Ms. Bruce brings over 25 years of oncology research and development experience, and her operational leadership will support the continued advancement of our pipeline. Based on our current operating plan, we expect our existing cash resources to fund operations into 2029, positioning us to execute on our key anticipated clinical and regulatory objectives."

2026 Anticipated Milestones

NUC-7738
Complete patient recruitment in the Phase 2 expansion study (NuTide:701) evaluating NUC-7738 in combination with pembrolizumab in patients with PD-1 resistant melanoma;
Announce final data from the Phase 2 expansion study (NuTide:701) of NUC-7738 in combination with pembrolizumab in patients with PD-1 resistant melanoma;
Obtain regulatory guidance from the U.S. Food and Drug Administration regarding a potential registrational strategy for NUC-7738 in melanoma; and
Advance evaluation of additional indications and combination strategies.
NUC-3373
Evaluate optimal combinations and indications to inform potential future clinical studies of NUC-3373.

Fourth Quarter and Year-End 2025 Financial Highlights and Cash Position

As at December 31, 2025, NuCana had cash and cash equivalents of £24.3 million compared to £25.2 million at September 30, 2025 and £6.7 million at December 31, 2024.

In May 2025, NuCana completed a financing, raising £9.6 million in gross proceeds, £5.2 million upfront and £4.4 million from the exercise of warrants, before expenses and commissions.

Subsequently, in July 2025, NuCana raised, through the at-the-market program, £19.0 million in gross proceeds before expenses and commissions. On July 21, 2025, having raised the full amount of capital required, NuCana announced it had successfully canceled all remaining Series A Warrants issued in the May 2025 financing, in exchange for payments totaling $3.6 million. This initiative fully eliminated all overhanging rights from the May 2025 financing.

NuCana anticipates its cash and cash equivalents at December 31, 2025 will be sufficient to fund its planned operations into 2029.

NuCana reported a net loss of £2.5 million for the quarter ended December 31, 2025, as compared to a net loss of £0.7 million for the quarter ended December 31, 2024. Basic and diluted loss per ordinary share was £0.00 for the quarter ended December 31, 2025, as compared to a loss per ordinary share of £0.01 for the comparable quarter ended December 31, 2024.

NuCana reported a net loss of £29.4 million for the year ended December 31, 2025, as compared to a net loss of £19.0 million for the year ended December 31, 2024. The net loss for the year ended December 31, 2025 included the following non-cash or non-recurring items:

Finance expense of £12.6 million (2024: £nil) relating to the non-cash loss on fair value revaluation of the warrants issued in the May 2025 financing;
Professional fees of £1.4 million (2024: £nil) related to the issue of warrants; and
Share-based payment expenses of £10.0 million (2024: £1.6 million); partly offset by
Total other income of £2.7 million (2024: £nil).
Basic and diluted loss per ordinary share was £0.00 for the year ended December 31, 2025, as compared to a loss per ordinary share of £0.26 for the year ended December 31, 2024.

(Press release, Nucana, MAR 19, 2026, View Source [SID1234663751])

TRIANA Biomedicines Announces First Patient Dosed in a Phase 1/2 Trial Evaluating TRI-611 for the Treatment of ALK Positive Non-small Cell Lung Cancer

On March 19, 2026 TRIANA Biomedicines, Inc. (TRIANA), a leading biopharmaceutical company focused on advancing a target-first and proximity-first molecular glue discovery platform to address difficult to drug disease targets, reported that the first patient has been dosed in a Phase 1/2 clinical trial evaluating TRI-611, a novel ALK-fusion molecular glue degrader, in patients with anaplastic lymphoma kinase–positive (ALK+) non-small cell lung cancer (NSCLC).

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NSCLC is the most common type of lung cancer, accounting for about 85 percent of all lung cancer cases. ALK+ NSCLC represents an important subset of lung cancer, characterized by a dependence on ALK fusion proteins for its growth and survival. Despite therapeutic advances with ALK tyrosine kinase inhibitors (TKI), resistance to TKI-based therapies and limited combination therapy options remain major clinical challenges for these younger, non-smoking patients, underscoring the profound and long-lasting impact of this disease. Addressing this persistent unmet need represents a significant opportunity to elevate the standard of care and meaningfully improve outcomes for people living with ALK+ NSCLC.

The Phase 1/2 clinical trial is a global, first-in-human, open-label study designed to evaluate the safety, tolerability, pharmacokinetics, and preliminary anti-tumor activity of TRI-611 in patients with ALK+ NSCLC. The Phase 1 portion will consist of a dose escalation design, enrolling ALK+ NSCLC patients, who have been previously treated with standard of care ALK TKI therapies. The Phase 2 portion will further evaluate and characterize the efficacy and safety of TRI-611 across different patient cohorts.

"We are excited to have TRI-611 in the clinic and to advance this new potential therapy for people living with lung cancer," said Dr. Caroline Germa, Chief Medical Officer of TRIANA. "Despite progress in treatments, many patients continue to face limited options. This study represents an important step in our mission to develop innovative therapies that may ultimately improve outcomes for ALK+ NSCLC patients and their families."

"Dosing of the first patient with TRI-611 marks an important milestone for TRIANA and for the ALK+ NSCLC patient community," said Dr. Patrick Trojer, President and CEO of TRIANA. "This study reflects our commitment to treating diseases in entirely new ways by applying our molecular glue technology to highly relevant cancer targets. We are excited to advance TRI-611 and bring its potential impact one step closer to patients."

About TRI-611

TRI-611 is a novel oral, small molecule, investigational therapy designed to target and degrade ALK fusion proteins in patients with ALK+ NSCLC. TRI-611 is a highly selective, potent, brain-penetrant, molecular glue degrader that brings ALK and the E3 ligase cereblon together through a unique binding mechanism that works independently of the kinase active site. TRI-611 harnesses the body’s innate protein-degradation machinery to selectively eliminate the ALK fusion protein and is designed to overcome the limitations observed with currently available ALK inhibitors.

(Press release, Triana Biomedicines, MAR 19, 2026, View Source [SID1234663769])

Oncolytics Biotech® to Present New Mechanistic and Translational Data Supporting Pelareorep as an Immune-Priming Backbone at AACR 2026

On March 19, 2026 Oncolytics Biotech Inc. (Nasdaq: ONCY) ("Oncolytics" or the "Company"), a clinical-stage immunotherapy company developing pelareorep, reported two abstracts across distinct tumor types were accepted for presentation at the American Association for Cancer Research (AACR) (Free AACR Whitepaper) ("AACR") Annual Meeting 2026, at the San Diego Convention Center from April 17-22, 2026. Pelareorep is an investigational, systemically delivered immunotherapy that has been shown to activate innate immune-sensing pathways via double‑stranded RNA signaling, driving interferon production, dendritic cell activation, and cytotoxic T‑cell priming.

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"These new translational findings strengthen our understanding of pelareorep as a systemic immune‑priming agent that reshapes the tumor microenvironment," said Jared Kelly, Chief Executive Officer of Oncolytics. "The coordinated immune activation and tertiary lymphoid structure formation we are observing support pelareorep as a foundational backbone for combination therapy across multiple tumor types, including RAS-driven cancers. RAS mutations are especially prevalent in deadly cancers, including roughly 95% of pancreatic cancers and 45% of colorectal cancers. As we advance registrational programs in gastrointestinal cancers, we believe pelareorep will enhance immunotherapy activity and potentially help patients who did not respond initially."

Biomarker data from cohort 1 of the Phase 1/2 GOBLET trial in advanced pancreatic cancer suggest pelareorep plus atezolizumab and gemcitabine/nab-paclitaxel can shift tumors toward a more immune-active state. Patients with an immune activation signature after four weeks were more likely to achieve durable clinical benefit, supporting a potential biomarker. Pancreatic cancer continues to pose a significant unmet clinical need, with approximately 510,000 new cases reported globally each year.1

Additionally, new first-of-its-kind data from AWARE-1 show pelareorep can drive coordinated anti-tumor immune responses, including tertiary lymphoid structure ("TLS") formation, helping make immunologically cold tumors more susceptible to immunotherapy. This could include patients who have failed checkpoint inhibitors, representing a significant portion of the patient population and a meaningful unmet need in oncology.

Pelareorep has also been shown to stimulate RAS-specific T-cell clones in gastrointestinal cancers, which may enhance its ability to target RAS-mutated tumor cells. The Company will present more data on this topic at an upcoming scientific meeting.

Together, the data support pelareorep as a novel immune‑priming strategy capable of enhancing the activity of multiple therapeutic classes, including checkpoint inhibitors, targeted therapies, chemotherapy, and emerging immuno‑oncology modalities.

Abstract: Pelareorep combined with atezolizumab and chemotherapy shows immune conversion activity in advanced pancreatic cancer: Biomarker results of cohort 1 of the GOBLET trial

New biomarker data from cohort 1 of the Phase 1/2 GOBLET study demonstrated that pelareorep in combination with atezolizumab, gemcitabine, and nab-paclitaxel led to meaningful immune activation in patients with metastatic pancreatic ductal adenocarcinoma ("mPDAC").

An exploratory analysis integrating routine serum markers, a 172-protein circulating panel, selected T-cell receptor sequencing, and clinical outcomes found early on-treatment changes showed increases in adaptive immune and cytotoxicity-associated proteins, including interferon signaling and CD8+/NK-related markers, alongside decreases in tumor/stroma-associated proteins. A 14-protein signature linked to oncolytic activity stratified patients at Week 4 into ‘hot’ vs. ‘cold’ immune phenotypes relative to baseline. Patients demonstrating immune activation signatures experienced longer median progression-free survival (7.5 months) compared with patients who did not exhibit similar immune responses (5.6 months).

As previously reported, the combination of pelareorep, atezolizumab, gemcitabine, and nab-paclitaxel demonstrated a 62% objective response rate in first-line mPDAC patients, more than double the response rates historically observed with chemotherapy alone.

Abstract: Imaging mass cytometry of pelareorep treated early breast cancer samples reveals developing tertiary lymphoid structures

AWARE-1 is a window-of-opportunity study evaluating the effects of pelareorep in early-stage breast cancer. In biopsies from Cohort 2 (n=8), cellular neighborhood analysis identified immune-cell clusters, including cytotoxic T cells, dendritic cells, T helper cells, activated T helper cells, B cells, differentiated B cells, and M2 macrophages. Interactions between these cells developed into TLS in select patients. TLS function as localized immune hubs that facilitate antigen presentation, T‑cell activation, and sustained anti‑tumor immune responses. Published studies link TLS formation with improved responses to immunotherapy.

These findings support pelareorep’s potential to expand cytotoxic T cells, activate dendritic cells, and promote TLS formation, helping to convert immunologically ‘cold’ tumors into immune-responsive ‘hot’ tumors.

About GOBLET
The GOBLET (Gastrointestinal tumOrs exploring the treatment comBinations with the oncolytic reovirus peLarEorep and anTi-PD-L1) study is a phase 1/2 multiple indication study in advanced or metastatic gastrointestinal tumors. The study is being conducted at 17 centers in Germany and is being managed by AIO-Studien-gGmbH. The co-primary endpoints of the study are objective response rate and/or disease control rate and safety. Key secondary and exploratory endpoints include additional efficacy assessments and evaluation of potential biomarkers. The study comprises five treatment groups:
1.Pelareorep in combination with atezolizumab, gemcitabine, and nab-paclitaxel in 1st line advanced/metastatic pancreatic cancer patients;
2.Pelareorep in combination with atezolizumab in 1st line MSI (microsatellite instability)-high metastatic colorectal cancer patients;

3.Pelareorep in combination with atezolizumab and TAS-102 in 3rd line metastatic colorectal cancer patients
4.Pelareorep in combination with atezolizumab in 2nd line advanced and unresectable anal cancer patients; and
5.Pelareorep in combination with mFOLFIRINOX with and without atezolizumab in newly diagnosed metastatic PDAC patients.
About AIO
AIO-Studien-gGmbH (AIO) emerged from the study center of the medical oncology working group within the German Cancer Society (DKG). AIO operates with a non-profit purpose of promoting science and research with a focus on medical oncology. Since its foundation, AIO has become a successful sponsor and study management company and has established itself both nationally and internationally.

About AWARE-1
AWARE-1 was an open-label window-of-opportunity study in early-stage breast cancer. The study combined pelareorep, without or with atezolizumab, and standard of care therapy according to breast cancer subtype. Tumor tissue was collected from patients as part of their initial breast cancer diagnosis, again on day three following initial treatment, and finally at three weeks following treatment, on the day their tumor is surgically resected. Key objectives of the study were to confirm that pelareorep is acting as a novel immunotherapy, to evaluate potential synergy between pelareorep and checkpoint blockade, and to collect biomarker data. The primary endpoint of the translational study was overall CelTIL score (a measurement of cellularity and tumor-infiltrating lymphocytes that is associated with favorable clinical outcomes). Secondary endpoints for the study included safety and tumor and blood-based biomarkers. The combination of pelareorep, letrozole, and atezolizumab resulted in 60% of patients experiencing 30% or greater increases in their CelTIL score.

(Press release, Oncolytics Biotech, MAR 19, 2026, View Source [SID1234663752])