Targovax strengthens focus on ONCOS oncolytic virus development program

On JUN 11, 2018 Targovax ASA ("Targovax" or "the Company"; OSE: TRVX), a clinical stage company focused on developing and commercializing immune activating oncology therapies to target, primarily, treatment resistant solid tumors, reported an update to its clinical development strategy (Press release, Targovax, JUN 11, 2018, View Source [SID1234527412]).

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Targovax has previously reported encouraging proof-of-concept data from clinical trials with both of its immune activator platforms technologies; ONCOS, which uses genetically armed oncolytic adenoviruses, and TG, a neo-antigen vaccine that targets mutant RAS cancers. However, based on recent external clinical data and market dynamics, Targovax has decided to prioritize and strengthen the development focus on the ONCOS program.

Over the past 12 months, there has been clinical data released from multiple external studies corroborating the potential of oncolytic viruses as an important class of immune activating agents that can boost the effect of other treatments, such as checkpoint inhibitors. This notion is further strengthened by increased partnering and M&A activity by major global pharmaceutical companies, underscored by the acquisitions earlier this year of Viralytics and Benevir by Merck and Johnson & Johnson, respectively.

Furthermore, data presented at the American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) annual meeting on June 1-5 has fundamentally changed the development preconditions for the TG program. Data from independent trials testing the chemotherapy cocktail Folfirinox in resected pancreas cancer, the lead indication for TG01, has demonstrated an improvement in median overall survival of up to 2 years compared to the current standard of care (gemcitabine and capecitabine). These results are great news for patients suffering from this difficult-to-treat cancer. It is expected that the Folfirinox treatment regimen will be quickly adopted as a new standard of care in resected pancreatic cancer, and it is already clear that that the design of Targovax’s planned randomized phase II trial of TG01 in combination with gemcitabine and capecitabine is inadequate and that the trial will not start. Although we are confident that TG01 will be active in combination with any standard of care therapy, the new Folfirinox median survival benchmark of close to 5 years means that such a combination trial is not practically feasible for Targovax.

Targovax strongly believes in the potential of the TG platform to treat mutant RAS cancers, and is encouraged by the signal of efficacy seen in the recent phase I/II trial in resected pancreas cancer. In addition, the company already has a phase I trial underway in colorectal cancer with TG02, the second-generation product from the TG program, combining with pembrolizumab. This trial is expected to read out in 2019. In light of the new Folfirinox data, the Company will together with its clinical advisors reevaluate and reshape the development plans for TG, and devise a strategy for how to best create value for both patients and shareholders. A revised development strategy for the TG program will be presented during the autumn.

The resources freed up by this decision will be allocated to strengthen and speed up ONCOS development. In particular, Targovax is currently looking into options to expand the ongoing trial in mesothelioma, the target launch indication for ONCOS-102.

Øystein Soug, CEO of Targovax said "It is fortunate for us that the emerging Folfirinox data in resected pancreatic cancer was presented at ASCO (Free ASCO Whitepaper) already this year, as it gave us the opportunity to reassess our trial design before committing to an inadequate combination treatment. We are confident that our TG vaccine has potential to benefit patients with mutant RAS cancers, and will now reassess the TG development plan. ONCOS continues to be our lead program, and we will further sharpen our focus to drive ONCOS-102 forward with full force, and remain in the forefront of oncolytic virus development"

Advaxis Announces Dosing of First Patient with ADXS-NEO, an Investigational Customized Immunotherapy Approach Targeting Personal Neoantigens

On June 11, 2018 Advaxis, Inc. (NASDAQ:ADXS), a late-stage biotechnology company focused on the discovery, development and commercialization of immunotherapy products, reported it has commenced a Phase 1 trial with the dosing of the first patient with ADXS-NEO, an investigational personalized immunotherapy approach targeting personal neoantigens found by sequencing a patient’s own cancer cells (Press release, Advaxis, JUN 11, 2018, View Source [SID1234527256]). ADXS-NEO is being evaluated in an open-label, dose-escalation, multicenter Phase 1 clinical trial in the United States. The study is open to patients with metastatic non-small cell lung cancer (NSCLC), metastatic microsatellite stable colon cancer and metastatic squamous head and neck cancer. The first patient dosed is being treated for non-small cell lung cancer. ADXS-NEO is being developed in collaboration with Amgen. Advaxis is leading clinical development through proof-of-concept.

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Pre-clinical findings for ADXS-NEO were presented at the 2018 American Association for Cancer Research (AACR) (Free AACR Whitepaper) Annual Meeting. The company presented data in mouse models showing that ADXS-NEO generates T cell responses against neoantigen peptides that control tumor growth, even when they were identified as "non-immunogenic" using a conventional peptide-adjuvant immunization. Additionally, data were presented highlighting the capacity of the Advaxis Lm vector and its ability to target frameshift mutations of greater than 90 amino acids, and to generate T cells to multiple neoantigens per frameshift in tumor mouse models.

"We are extremely pleased to advance ADXS-NEO into the clinic. This program brings our clinically-validated Lm Technology to the cutting-edge area of neoantigen immuno-oncology," said Kenneth A. Berlin, President and Chief Executive Officer of Advaxis. "We are committed to realizing the potential of ADXS-NEO to mobilize patients’ immune systems against mutations that accumulate within and contribute to the development of their cancer, and to bring the potential benefits of our technology to more patients and their families."

Enrolled patients will undergo a biopsy, and Advaxis will then manufacture an investigational personalized treatment for each patient based on an analysis of their tumor neoantigen mutations, which will be ready to dose within 8 weeks of the initial biopsy. More information about the trial is available at www.clinicaltrials.gov.

About ADXS-NEO

ADXS-NEO is an investigational personalized Listeria monocytogenes (Lm)-based immunotherapy designed to generate immune response against mutation-derived tumor-specific neoantigens identified through DNA sequencing of a patient’s own tumors. The program focuses on creating a customized treatment for each patient targeting multiple neoantigens found in a biopsy of the patient’s tumor. ADXS-NEO is being developed in partnership with Amgen.

NKARTA THERAPEUTICS ANNOUNCES EXCLUSIVE LICENSE TO NATURAL KILLER CELL TECHNOLOGY FROM NATIONAL UNIVERSITY OF SINGAPORE AND ST. JUDE CHILDREN’S RESEARCH HOSPITAL

On June 11, 2018 Nkarta Therapeutics, a privately-held cell therapy company developing Natural Killer (NK) immune cells to fight cancer, reported that it has entered into a worldwide exclusive license agreement for proprietary Natural Killer cell engineering technology jointly owned by the National University of Singapore (NUS) and St. Jude Children’s Research Hospital (Press release, Nkarta, JUN 11, 2018, View Source [SID1234530934]). The license, negotiated by the Industry Liaison Office (ILO) of NUS and the St. Jude Office of Technology Licensing (OTL), includes several issued patents and patent applications related to methods to generate large numbers of fully functional NK cells as well as compositions of chimeric receptors for targeting NK cells to tumors and extending their life-span. The licensed technologies are all based on discoveries by Professor Dario Campana, M.D., Ph.D., of NUS and formerly of St. Jude, who is credited with major advances in chimeric antigen receptor (CAR-T) cell therapy in addition to Natural Killer cell therapy.

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"Through this agreement, we have solidified our position as leaders in Natural Killer cell technology," said Paul Hastings, president and chief executive officer of Nkarta. "Natural Killer cells have a unique, innate ability to target and destroy cancer cells, but the amount generated by the body is not sufficient to overcome the disease. With this license we have gained access to exclusive expansion and targeting technologies that will generate an abundant supply of our proprietary engineered and enhanced NK cells that can selectively kill tumor cells."

Dr. Campana added, "As a scientific founder of Nkarta, I am pleased to see the company advance its technology, which enhances the potential of NK cells as a next-generation cell therapy. The company has expertise in key aspects of NK cell engineering, including ways to improve recognition of tumor targets, to support persistence and sustained activity, and to produce genetically-modified NK cells in sufficient quantity to meet clinical requirements."

POLO-LIKE KINASE-1, AURORA KINASE A AND WEE1: NEW THERAPEUTIC TARGETS IN SYSTEMIC MASTOCYTOSIS

Plk1 and AKA, alone or together with Wee1, are attractive therapeutic targets in neoplastic mast cells according to a study presented by Manuela Mancini et al at the 23rd Congress of European Hematology Association (EHA) (Free EHA Whitepaper) (Abstracts, EHA (Free EHA Whitepaper) 2018, The European Hematology Association (EHA) (Free EHA Whitepaper), JUN 11, 2018, View Source [SID1234527258]). Repurposing Plk1 or AKA±Wee1 inhibitors in advanced clinical development for other indications is a therapeutic strategy worth to be explored in an attempt to improve the outcome of patients with advanced systemic mastocytosis.

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CD83 IS A NEW POTENTIAL BIOMARKER AND THERAPEUTIC TARGET FOR HODGKIN LYMPHOMA

Anti-CD83 mAb, 3C12C and its toxin conjugate, kill CD83+ Hodgkin lymphoma cells in vitro as presented by Ziduo Li et al at the 23rd Congress of European Hematology Association (EHA) (Free EHA Whitepaper) (Abstracts, EHA (Free EHA Whitepaper) 2018, The European Hematology Association (EHA) (Free EHA Whitepaper), JUN 11, 2018, View Source [SID1234527259]). No toxicity was observed in 3C12C dose-escalation non-human primates study. These data establish CD83 as a potential biomarker and therapeutic target in Hodgkin lymphoma.

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