On March 31, 2025 Daiichi Sankyo reported first patient has been dosed in the DESTINYGastric05 phase 3 trial evaluating ENHERTU (trastuzumab deruxtecan) in combination with a fluoropyrimidine chemotherapy (5-FU or capecitabine) and Merck’s (known as MSD outside of the US and Canada) anti-PD-1 therapy KEYTRUDA (pembrolizumab) versus trastuzumab in combination with platinum-based chemotherapy (cisplatin plus 5-FU or oxaliplatin plus capecitabine) and pembrolizumab in previously untreated patients with unresectable, locally advanced or metastatic HER2 positive (IHC 3+ or IHC 2+/ISH+) gastric or gastroesophageal junction (GEJ) cancer with PD-L1 CPS ≥1 (Press release, Daiichi Sankyo, MAR 31, 2025, View Source [SID1234651693]). An exploratory cohort of patients with PD-L1 CPS <1 will be randomized to either ENHERTU plus fluoropyrimidine or trastuzumab plus platinum-based chemotherapy.

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ENHERTU is a specifically engineered HER2 directed DXd antibody drug conjugate (ADC) discovered by Daiichi Sankyo (TSE: 4568) and being jointly developed and commercialized by Daiichi Sankyo and AstraZeneca (LSE/STO/Nasdaq: AZN).

Gastric cancer is associated with a poor prognosis, particularly in advanced stages of the disease where the five-year survival rate is 5% to 10%. 1 Current recommended first-line treatment for HER2 positive advanced gastric cancer with PD-L1 CPS ≥1 is trastuzumab in combination with platinum-based chemotherapy (cisplatin plus 5-FU or oxaliplatin plus capecitabine) and pembrolizumab. 2,3 New treatment strategies are needed to continue to improve survival, including additional HER2 directed treatment options.

"Following the positive overall survival results seen with DESTINY-Gastric04 in the second-line HER2 positive metastatic gastric cancer setting, the DESTINY-Gastric05 trial will explore the role of ENHERTU earlier in the metastatic setting as a first-line treatment," said Mark Rutstein, MD, Global Head, Oncology Clinical Development, Daiichi Sankyo. "With DESTINY-Gastric05, we are evaluating whether a potential platinum-free chemotherapy regimen of ENHERTU combined with immunotherapy and a fluoropyrimidine chemotherapy can further improve survival in patients with previously untreated HER2 positive metastatic gastric cancer."

ENHERTU is currently approved in more than 65 countries in the second-line or third-line metastatic setting of HER2 positive gastric cancer based on DESTINY-Gastric01, a randomized phase 2 trial, and DESTINYGastric02 and DESTINY-Gastric06, two single-arm phase 2 trials. KEYTRUDA is a registered trademark of Merck Sharp & Dohme LLC, a subsidiary of Merck & Co., Inc., Rahway, NJ, USA.

About DESTINY-Gastric05

DESTINY-Gastric05 is a global, multicenter, randomized, open-label, phase 3 trial evaluating the efficacy and safety of ENHERTU (5.4 mg/kg) in combination with a fluoropyrimidine-based chemotherapy (5-FU or capecitabine) and Merck’s (known as MSD outside of the US and Canada) anti-PD-1 therapy KEYTRUDA (pembrolizumab) versus trastuzumab in combination with platinum-based chemotherapy (cisplatin plus 5-FU or oxaliplatin plus capecitabine) and pembrolizumab in approximately 576 previously untreated patients with unresectable, locally advanced or metastatic HER2 positive (IHC 3+ or IHC 2+/ISH+) gastric or GEJ cancer with PD-L1 CPS ≥1.

The primary endpoint is progression-free survival (PFS) as assessed by blinded independent central review. The key secondary endpoint is overall survival. Additional secondary endpoints include PFS as assessed by investigator, objective response rate, duration of response and safety.

An exploratory cohort of 150 patients with PD-L1 CPS <1 will be randomized to either ENHERTU plus fluoropyrimidine (5-FU or capecitabine) or trastuzumab plus platinum-based chemotherapy (cisplatin plus 5- FU or oxaliplatin plus capecitabine).

DESTINY-Gastric05 will enroll patients across multiple sites in Asia, Europe, North America and South America. For more information about the trial, visit ClinicalTrials.gov.

About HER2 Positive Gastric Cancer
Gastric (stomach) cancer is the fifth most common cancer worldwide and the fifth leading cause of cancerrelated death.
4 Approximately one million cases were diagnosed in 2022.4 Gastric cancer is associated with a poor prognosis, particularly in advanced stages of the disease where the five-year survival rate is 5% to 10%.

HER2 is a tyrosine kinase receptor growth-promoting protein expressed on the surface of many types of tumors, including gastric cancer.5 Approximately one in five gastric cancers globally are HER2 positive.Recommended first-line treatment for HER2 positive advanced gastric cancer with PD-L1 CPS ≥1 is trastuzumab in combination with platinum-based chemotherapy (cisplatin plus 5-FU or oxaliplatin plus capecitabine) and pembrolizumab.2,3 In patients with PD-L1 CPS <1 recommended first-line treatment is trastuzumab plus platinum-based chemotherapy (cisplatin plus 5-FU or oxaliplatin plus capecitabine). 2 New treatment strategies, including additional HER2 directed treatment options, are needed to continue to improve survival in patients with previously untreated advanced gastric cancer.

On March 31, 2025 Halozyme Therapeutics, Inc. (NASDAQ: HALO) (Halozyme) reported that Bristol Myers Squibb received a positive opinion from the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency, recommending approval of a new Opdivo (nivolumab) subcutaneous formulation developed with ENHANZE, Halozyme’s proprietary recombinant human hyaluronidase enzyme (rHuPH20), across multiple previously approved adult solid tumors as monotherapy, monotherapy maintenance following completion of nivolumab plus Yervoy (ipilimumab) combination therapy, or in combination with chemotherapy or cabozantinib (Press release, Halozyme, MAR 31, 2025, View Source [SID1234651692]).

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The CHMP opinion will now be reviewed by the European Commission, which has the authority to approve medicines in the European Union. A decision on the European extension of marketing authorization for the subcutaneous formulation of Opdivo is expected by June 2, 2025.

"We are delighted that the subcutaneous formulation of Opdivo developed with Halozyme’s ENHANZE drug delivery technology was recommended for approval in the European Union. Subcutaneous delivery of Opdivo would provide cancer patients a faster and more flexible treatment option and may help alleviate pressure on healthcare system resources," said Dr. Helen Torley, president and chief executive officer of Halozyme.

The CHMP positive opinion is supported by positive results from the Phase 3 CheckMate -67T trial. For more information on the study and its findings, please view Bristol Myers Squibb’s press release issued on March 28, 2025.

On December 27, 2024, nivolumab and hyaluronidase-nvhy, marketed under the brand name Opdivo Qvantig, was approved by the U.S. Food and Drug Administration.

On March 31, 2025 Theriva Biologics (NYSE American: TOVX), a diversified clinical-stage company developing therapeutics designed to treat cancer and related diseases in areas of high unmet need, reported that a second Independent Data Monitoring Committee (IDMC) review of data from the VIRAGE Phase 2b clinical trial in newly-diagnosed metastatic pancreatic ductal adenocarcinoma (PDAC) found that that VCN-01 was well tolerated in combination with standard-of-care chemotherapy (gemcitabine/nab-paclitaxel) and the adverse event (AE) profile was as expected for the patient population and the medications being studied (Press release, Theriva Biologics, MAR 31, 2025, View Source [SID1234651691]).

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The IDMC, composed of key opinion leaders in pancreatic cancer and oncolytic viruses, reviewed clinical data from the complete safety population of 101 patients enrolled across 5 sites in the U.S. and 9 sites in Spain. The VCN-01 AE profile was consistent with that observed in prior clinical trials. The most common VCN-01 related AEs (pyrexia, flu-like illness, vomiting, nausea, and elevated transaminases) were transient and reversible. These AEs were observed to be less frequent and of reduced CTCAE grade after the second VCN-01 dose (administered on day 92) compared to the first VCN-01 dose (administered on day 1). The IDMC noted that the overall type and number of AEs in the VCN-01 treatment group was as expected for the pancreatic cancer population, the duration of treatment, and the administration of an oncolytic virus. VIRAGE patient enrollment was completed in September 2024 and topline clinical outcomes data are anticipated in Q2 2025.

"This second positive IDMC review of VCN-01 safety data from a larger number of patients affirms the feasibility of repeated VCN-01 dosing in metastatic PDAC patients" said Steven A. Shallcross, Chief Executive Officer of Theriva Biologics. "We are now working towards the release of topline clinical outcomes data in Q2 2025. If positive, these data, in combination with the previously reported feedback from the FDA and EMA, will guide the design of a potential Phase 3 registrational trial for discussion with regulatory agencies later this year."

About VIRAGE
VIRAGE is a two-arm, Phase 2b open-label, randomized, controlled, multicenter clinical trial in patients with histologically confirmed, newly-diagnosed metastatic PDAC. Patients have been enrolled at 5 sites in the U.S> and 9 sites in Spain. In both the control and VCN-01 treatment arms, patients receive gemcitabine/nab-paclitaxel standard-of-care chemotherapy in repeated 28-day cycles until disease progression. In the VCN-01 treatment arm only, patients are also administered intravenous VCN-01 seven-days prior to starting the first and fourth cycles of gemcitabine/nab-paclitaxel treatment (study days 1 and ~92 respectively). Primary endpoints for the trial include overall survival and VCN-01 safety/tolerability. Additional endpoints include progression free survival, objective response rate, and measures of VCN-01 biodistribution, replication, and immune response. More information about the trial is available on Clinicaltrials.gov (NCT05673811), through the Spanish Clinical Trials Registry and European Union Drug Regulating Authorities Clinical Trials Database (EudraCT Number: 2022-000897-24).

About VCN-01
VCN-01 is a systemically administered oncolytic adenovirus designed to selectively and aggressively replicate within tumor cells and degrade the tumor stroma that serves as a significant physical and immunosuppressive barrier to cancer treatment. This unique mode-of-action enables VCN-01 to exert multiple antitumor effects by (i) selectively infecting and lysing tumor cells; (ii) enhancing the access and perfusion of co-administered chemotherapy products; and (iii) increasing tumor immunogenicity and exposing the tumor to the patient’s immune system and co-administered immunotherapy products. Systemic administration enables VCN-01 to exert its actions on both the primary tumor and metastases. VCN-01 has been administered to 142 patients in clinical trials of different cancers, including PDAC (in combination with chemotherapy), head and neck squamous cell carcinoma (with an immune checkpoint inhibitor), ovarian cancer (with CAR-T cell therapy), colorectal cancer, and retinoblastoma (by intravitreal injection).

On March 31, 2025 Oncotelic Therapeutics, Inc. (OTCQB:OTLC) ("Oncotelic," the "Company," or "We"), a leader in RNA-based therapeutics, reported the publication of its latest research paper, titled, "Positive Prognostic Overall Survival Impacts of Methylated TGFB2 and MGMT in Adult Glioblastoma Patients (Press release, Oncotelic, MAR 31, 2025, View Source [SID1234651690])." The paper, authored by Sanjive Qazi, Michael Potts, Scott Myers, Stephen Richardson, and Vuong Trieu, is available online at: View Source

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To facilitate deeper exploration and discussion of this research by the research community, Oncotelic is introducing its proprietary communication platform powered by PDAOAI. PDAOAI enables users to query this paper and dozens of referenced articles through a single interactive interface. Scientists and clinicians are invited to engage at: View Source

A Simple Summary

Glioblastoma (GBM) is one of the most aggressive brain tumors in adults. It is well established that methylation of the O-6-methylguanine-DNA methyltransferase (MGMT) gene is predictive of overall survival (OS) benefits in patients receiving standard temozolomide and radiotherapy. Transforming growth factor beta (TGFB) is a family of cytokines involved in vital cellular processes and the regulation of growth factors.

The study’s novel discovery demonstrates that high TGFB2 gene methylation correlates with an improved OS risk, surpassing the predictive value of MGMT and TGFB1 methylation when controlling for age and sex. Several genes and pathways linked to TGFB2 methylation, including immune mechanisms such as T-cell activation, antigen processing, and Toll-like receptor pathways, were identified as improving survival outcomes in GBM patients. Of note, mucosa-associated lymphoid tissue lymphoma translocation protein, also referred to as MALT1, mRNA negatively impacted survival rates, suggesting a potential avenue for targeted therapies.

"The complexity of the publication was simplified into a concise statement by our PDAOAI platform, demonstrating the power of this platform for scientific communication: The findings underscore the importance of TGFB2 methylation as a prognostic marker in GBM treatment. High levels of TGFB2 methylation are associated with improved overall survival, particularly in young adult males. This suggests that TGFB2 methylation could be a valuable biomarker for risk stratification and therapeutic targeting in GBM, potentially guiding treatment decisions and improving patient outcomes." – Dr. Vuong Trieu, CEO of Oncotelic and co-author of the study.

"Our findings present an actionable opportunity to improve GBM patient outcomes by integrating sophisticated predictive analytical platforms and tools with clinical data. By uncovering insightful methylation patterns and elucidating gene-expression profiles at the biochemical pathway level, we expand our capacity to identify potential therapeutic targets. This approach supports the development of tailored treatment strategies through our nano-technology drug delivery platform. Ultimately, these insights enhance innovation in targeted therapies, driving improved clinical efficacy and patient survival rates in this devastating disease." – Dr. Sanjive Qazi, lead researcher

"This is the first paper we have published that utilized our proprietary AI technology. We are excited to see our technology being applied in real-world scenarios, and we look forward to the advancements it can potentially bring in the future." – Scott Myers, Product Manager

On March 31, 2025 Revolution Medicines, Inc. (Nasdaq: RVMD), a late-stage clinical oncology company developing targeted therapies for patients with RAS-addicted cancers, reported that Mark A. Goldsmith, M.D., Ph.D., the company’s chief executive officer and chairman, will participate in in two upcoming investor conferences (Press release, Revolution Medicines, MAR 31, 2025, View Source [SID1234651685]).

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Details of the company’s participation are as follows:

Needham 24th Annual Virtual Healthcare Conference
Fireside Chat: Monday, April 7 at 2:15 p.m. ET
Stifel 2025 Virtual Targeted Oncology Forum
Fireside Chat: Wednesday, April 9 at 1:00 p.m. ET

To listen to a live webcast of any of these events, or access archived webcasts, please visit: View Source Following the live webcasts, replays will be available on the company’s website for at least 14 days.