On April 20, 2017 Mateon Therapeutics, Inc. (OTCQX:MATN), a biopharmaceutical company developing vascular disrupting agents (VDAs) for the treatment of orphan oncology indications, reported that the Markey Cancer Center at the University of Kentucky has enrolled the first patient into a new phase 1 study of CA4P in combination with everolimus for the treatment of neuroendocrine tumors (Press release, Mateon Therapeutics, APR 20, 2017, View Source [SID1234518638]). Schedule your 30 min Free 1stOncology Demo! "The combination of CA4P and everolimus has the potential to decrease the ability of tumor cells to recover between CA4P treatment cycles," stated Lowell B. Anthony, M.D., Professor of Medicine and Chief, Division of Medical Oncology, Markey Cancer Center, University of Kentucky. "This is the first trial testing this hypothesis in neuroendocrine tumors – with CA4P disrupting the existing tumor blood supply and everolimus preventing a new tumor blood supply from re-forming. Our findings from this trial should lead to a larger clinical study once we have identified the optimal dose and schedule for the combination of these two agents."
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Study MCC-2016-088 is designed to demonstrate whether the addition of CA4P to everolimus may improve tumor control without additional toxicity. Everolimus has been approved by the U.S. Food and Drug Administration for the treatment of advanced pancreatic neuroendocrine tumors and progressive gastrointestinal neuroendocrine tumors, among other indications, and is marketed by Novartis under the tradename AFINITOR. Mateon has previously demonstrated initial evidence of efficacy for CA4P in patients with neuroendocrine tumors when CA4P was provided as a single agent.
Study MCC-2016-088 is being sponsored, funded, and conducted by the Markey Cancer Center, with Mateon providing the investigational drug. The study is designed as a single center, open label, phase 1 clinical trial for patients with grade 1-3 gastroenteropancreatic neuroendocrine tumors. In the first part of the study, up to 15 patients will be treated with everolimus in combination with two different dosing regimens of CA4P to establish appropriate CA4P dosing levels and evaluate the safety of the drug combination. The second part of the study is designed to enroll 15 additional patients for assessment of additional safety and efficacy data. Patients enrolled in MCC-2016-088 will be treated with CA4P and everolimus for 12 weeks.
For further information about the clinical trial, please visit www.clinicaltrials.gov, Study NCT03014297.
Mateon has received orphan drug designation for CA4P for the treatment of neuroendocrine tumors from both the U.S. Food and Drug Administration and from the European Medicines Agency.
Month: April 2017
Celsion Announces Presentation of OVATION Study Findings at the Upcoming ASCO 2017 Annual Meeting
On April 20, 2017 Celsion Corporation (NASDAQ:CLSN), an oncology drug development company, reported an update on its OVATION Study, a Phase Ib dose escalating clinical trial combining GEN-1, the Company’s DNA-based immunotherapy, with the standard of care for the treatment of newly-diagnosed patients with advanced (stage III/IV) ovarian cancer who will undergo neoadjuvant chemotherapy followed by interval debulking surgery (Press release, Celsion, APR 20, 2017, View Source [SID1234518637]). GEN-1 is an IL-12 DNA plasmid vector formulated as a nanoparticle in a non-viral delivery system to cause the sustained local production and secretion of the Interleukin-12 (IL-12) protein loco-regionally to the tumor site. Schedule your 30 min Free 1stOncology Demo! The Company announced that an abstract for the OVATION Study has been accepted for presentation at the American Society of Clinical Oncology (ASCO) (Free ASCO Whitepaper) 2017 Annual Meeting, which will take place from June 2-6 at McCormick Place in Chicago, IL.
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The abstract, entitled "Phase 1 study of the safety and activity of formulated IL-12 plasmid administered intraperitoneally in combination with neoadjuvant chemotherapy in patients with newly diagnosed advanced stage ovarian cancer," will be presented in a poster presentation session on Saturday, June 3rd from 1:15 PM to 4:45 PM by Dr. Premal H. Thaker, Associate Professor, Obstetrics and Gynecology Division of Gynecologic Oncology, Washington University in St. Louis School of Medicine.
The presentation will summarize clinical findings and translational data from all available patients treated in the trial. The translational data will provide further insight into GEN-1’s mechanism of action through the evaluation of dose-related changes in the tumor and peritoneal immune cell population, as well as through the peritoneal cytokine levels.
Celsion has previously reported highly encouraging interim data from the first twelve patients who have completed treatment in the OVATION Study. GEN-1 plus standard chemotherapy produced excellent results, with no dose limiting toxicities and promising dose dependent efficacy signals which appear to correlate well with successful surgical outcomes as summarized below:
Of the twelve patients treated, one patient demonstrated a complete response, eight (8) patients demonstrated a partial response and three (3) patients demonstrated stable disease, as measured by RECIST criteria. This translates to a 100% disease control rate ("DCR") and a 75% objective response rate ("ORR").
Eleven patients had successful resections of their tumors, with six (6) patients (55%) having an R0 resection, which indicates a microscopically margin-negative resection in which no gross or microscopic tumor remains in the tumor bed, and four (4) patients (36%) having a R1 resection, indicating microscopic residual tumor.
One patient demonstrated a pathological complete response (pCR). pCRs are typically seen in less than 7% of patients receiving neoadjuvant chemotherapy followed by surgical resection, and have been associated with a median overall survival (OS) of 72 months, which is more than three years longer than those who do not experience a pCR.
All patients experienced a dramatic decrease in their CA-125 protein levels as of their most recent study visit. CA-125 is used to monitor certain cancers during and after treatment. CA-125 is present in greater concentrations in ovarian cancer cells than in other cells.
"We have now completed enrollment of our OVATION Study in newly diagnosed ovarian cancer patients, one goal of which is to determine GEN-1’s activity in combination with standard chemotherapy. The previously reported remarkable, unexpected surgical outcomes among all patients completing the prescribed eight weekly treatments reinforce our confidence in the promise of GEN-1’s ability to work safely and effectively in advanced ovarian cancer," said Michael H. Tardugno, Celsion’s chairman, president and CEO. "We are looking forward to Dr. Thaker’s report of comprehensive findings at the upcoming ASCO (Free ASCO Whitepaper) meeting and to learning more about the utility of our gene-based immunotherapy approach as this important study matures."
OVATION Study Design
The Phase Ib trial will evaluate weekly intraperitoneal dosing of GEN-1 in combination with neoadjuvant chemotherapy, the standard of care for patients newly diagnosed with ovarian cancer. Concurrently with neoadjuvant chemotherapy, enrolled patients will receive escalating weekly doses of GEN-1, from levels beginning at 36mg/m², to 47mg/m², 61mg/m² and 79mg/m² weekly for 8 treatments in total, with interval debulking surgery to follow. The regimen will primarily be evaluated for its safety and tolerability.
About GEN-1 Immunotherapy
GEN-1, designed using Celsion’s proprietary TheraPlas platform technology, is an IL-12 DNA plasmid vector encased in a nanoparticle delivery system, which enables cell transfection followed by persistent, local secretion of the IL-12 protein. IL-12 is one of the most active cytokines for the induction of potent anti-cancer immunity acting through the induction of T-lymphocyte and natural killer (NK) cell proliferation. The Company has previously reported positive safety and encouraging Phase I results with GEN-1 given as monotherapy in patients with peritoneally metastasized ovarian cancer, and recently completed a Phase Ib trial of GEN-1 in combination with PEGylated doxorubicin in patients with platinum-resistant ovarian cancer.
Spherix Announces Economic Interest Acquired in New Patent Portfolio
On April 19, 2017 Spherix Incorporated (Nasdaq: SPEX) an intellectual property development company committed to the fostering of technology and monetization of intellectual property, reported that it has acquired an economic interest in a new patent portfolio that is largely unlicensed to any third party (Press release, Spherix, APR 19, 2017, View Source [SID1234538993]).
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Spherix and its partner Equitable IP Corporation have acquired an economic interest and the right to monetize a valuable portfolio in the fiber optic technology space as part of their ongoing patent monetization efforts. The newly acquired portfolio consists of approximately 112 patents and is largely unlicensed.
Anthony Hayes, Chief Executive Officer of Spherix, stated, "By working with Equitable IP Corporation, we’ve expanded the number of Equitable’s assets that can be monetized to now over 400 patents. The addition of these new patents to Equitable’s portfolio increases our potential revenue generation. This is part of our continued efforts to increase value for our shareholders."
CytRx Announces FDA Agreement on Regulatory Pathway to Approval for Aldoxorubicin in Soft Tissue Sarcomas
On April 19, 2017 CytRx Corporation (NASDAQ: CYTR) reported the U.S. Food and Drug Administration (FDA) has reached an agreement with CytRx on preparations for a New Drug Application (NDA) submission for aldoxorubicin in soft tissue sarcomas (STS). STS remains a high unmet medical need (Press release, CytRx, APR 19, 2017, View Source [SID1234518622]).
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"We are very pleased to have achieved clarity from the FDA regarding CytRx’s soft tissue sarcoma program," said Daniel Levitt, MD, Ph.D., Chief Operating Officer and Chief Medical Officer. "The FDA agreed that CytRx could use the application pathway for its filing that has been successfully used previously by the oncology drugs Abraxane, Doxil and Onivyde. Our interaction with the FDA was part of a continued collaborative and productive relationship with the Agency. We look forward to providing the study reports and analysis that can lead to the approval of aldoxorubicin for the treatment of patients with soft tissue sarcomas."
The Company’s goal is to submit a rolling NDA under section 505(b)(2) to the FDA for soft tissue sarcomas in the last quarter of 2017. CytRx also plans to discuss with the European Medicines Agency (EMA) a path to filing a Marketing Authorization Application (MAA). The commercial launch of aldoxorubicin is still projected for 2018 in the United States. Aldoxorubicin has received Orphan Drug Designation by the FDA for the treatment of STS. Orphan designation provides several benefits including seven years of market exclusivity after approval, certain R&D related tax credits and protocol assistance by the FDA. European regulators granted aldoxorubicin Orphan Medicinal Product Designation for STS which confers ten years of market exclusivity among other benefits.
The proposed product label would include the treatment of soft tissue sarcomas. New data could allow future use of aldoxorubicin in neoadjuvant (pre-surgery) settings, as well as a replacement for doxorubicin in combinations. CytRx is also working on a market expansion strategy which could include other indications for aldoxorubicin including combinations with other chemotherapeutics and immunotherapies.
CytRx is under confidentiality agreements with a number of companies for a commercial partnership for the marketing of aldoxorubicin. The Company believes those active discussions may be further advanced by this latest news.
About a 505(b)(2) New Drug Application
A new drug application (NDA) under the Food and Drug Administration’s (FDA) section 505(b)(2) is for a new drug containing similar active ingredients as a previously approved drug. According to the publication Regulatory Focus, a drug reviewed under 505(b)(2) represents a modified version of a previously approved product that requires additional clinical and nonclinical studies, other than bioavailability/bioequivalence studies, to demonstrate safety and efficacy. Such an application differs from a typical NDA in that the sponsor can rely on, at least in part, the FDA’s findings of safety and/or effectiveness for a previously approved reference drug.
About the Phase 2b and Phase 3 Clinical Trials
The Phase 2b trial involved 123 patients at 31 sites. Patients with advanced soft tissue sarcomas were randomized 2:1 to receive either 350 mg/m2 of aldoxorubicin (83 patients) or 75 mg/m2 of doxorubicin (40 patients) every 3 weeks for up to 6 cycles. The trial was designed to compare aldoxorubicin directly with doxorubicin.
The randomized, controlled Phase 3 trial enrolled a total of 433 patients at 79 clinical sites. Patients with metastatic, locally advanced or unresectable soft tissue sarcomas who had either not responded to, or who had progressed following treatment with one or more systemic regimens of non-adjuvant chemotherapy were randomized 1:1 to be treated with aldoxorubicin or the investigator’s choice of an approved chemotherapeutic regimen, including doxorubicin, ifosfamide, dacarbazine, pazopanib (Votrient), or gemcitabine plus docetaxel.
About Soft Tissue Sarcoma
Soft tissue sarcoma is a cancer occurring in muscle, fat, blood vessels, tendons, fibrous tissues and connective tissue. It can arise anywhere in the body at any age. STS remains a high unmet medical need because of the difficulty in treating the more than 50 types of this aggressive cancer. According to the American Cancer Society, in 2016 more than 12,300 new cases were diagnosed in the U.S. and approximately 5,000 Americans died from this disease. In addition, approximately 40,000 new cases and 13,000 deaths in the U.S. and Europe are part of a growing underserved market.
About Aldoxorubicin
Aldoxorubicin is a rationally engineered cytotoxic which combines doxorubicin, a widely used chemotherapeutic agent, with a novel linker molecule that binds directly and specifically to circulating albumin, the most abundant protein in the bloodstream. Protein-hungry tumors concentrate albumin, which facilitates the delivery of the linker molecule with the attached doxorubicin to tumor sites. In the acidic environment of the tumor, but not the neutral environment of healthy tissues, doxorubicin is released. Typically, doxorubicin is delivered systemically and is highly toxic, which limits its dose to a level below its maximum therapeutic benefit. Doxorubicin also is associated with many side effects, especially the potential for damage to heart muscle at cumulative doses greater than 450 mg/m2. Using this acid-sensitive linker technology, aldoxorubicin delivers greater doses of doxorubicin (3 ½ to 4 times). To date, there has been no evidence of clinically significant effects of aldoxorubicin on heart muscle, even at cumulative doses of the drug well in excess of 5,000 mg/m2. Aldoxorubicin is the first-ever single agent to show superiority over doxorubicin in a randomized clinical trial in first-line STS.
CRT Pioneer Fund, Cancer Research UK and NCI collaborate to boost research against the ‘undruggable’ RAS
On April 19, 2017 Cancer Research UK and the Cancer Research Technology Pioneer Fund (CPF)* reported that they have committed £2.5 million in collaboration with the National Cancer Institute (NCI) in the US to tackle one of the toughest challenges in cancer that has thwarted researchers for more than 30 years (Press release, Cancer Research Technology, 19 19, 2017, View Source [SID1234523166]).
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Scientists will develop and test promising new molecules for targeting RAS, one of the most common driving mutations in aggressive, hard to treat cancers including pancreatic and lung cancer.
Scientists at the NCI in Frederick, Maryland, USA will work with the Drug Discovery Unit at the Cancer Research UK Beatson Institute** in Glasgow, Scotland to develop gold standard tests to analyse these novel RAS inhibitors.
This new collaboration links up with the NCI’s RAS Initiative*** which brings scientists together from around the globe to help develop drugs targeting the faulty protein. Launched in 2013, the initiative has established a hub of expertise that supports the international community in developments that could have huge clinical benefit.
The CRT Pioneer Fund, managed by Sixth Element Capital, will be responsible for the commercial exploitation of compounds that arise from the collaboration.
For decades, scientists have been attempting to target RAS,**** but with little success. This is because RAS lacks an obvious site on its surface for potential drug molecules to fit into and inhibit its signalling.
Dr Martin Drysdale, head of the Drug Discovery Unit at the Cancer Research UK Beatson Institute, said: "Our team is determined to challenge the dogma that RAS is ‘undruggable.’ This collaboration is our biggest yet and will double our resource targeting RAS. We are excited to be joining forces with the NCI in their pioneering RAS Initiative."
"Instead of scientists working and thinking in isolation, the NCI has created a research hub to pull together all the best science and expertise. My team is looking forward to contributing and working with Dr Frank McCormick, who leads the RAS Initiative and who has been at the forefront of cancer science for many years."
Dr Frank McCormick, who directs the research efforts of the RAS Initiative at the Frederick National Laboratory for Cancer Research, sponsored by the NCI, said: "We’re making progress in our understanding of how RAS proteins function at the molecular level and how they form signalling complexes in membranes. New technologies and tools mean we can now analyse these proteins in ways that were not possible a few years ago, and can now test new ways of blocking RAS function."
Dr Iain Foulkes, chief executive officer of Cancer Research Technology and executive director of research and innovation at Cancer Research UK, said: "It’s crucial that we unite the brightest minds across the globe. This international collaboration and investment could herald a new era in targeting RAS.
"We hope to develop these small molecules to pave the way for potential drugs in the future. Our aim is to work alongside industry to ensure any progress makes its way into clinical trials."
Dr Robert James, Managing Partner at Sixth Element Capital, said: "The CRT Pioneer Fund was established to invest in outstanding science that has the potential to benefit patients on a global scale. We are delighted to have catalysed this relationship which has created an opportunity to make real progress in discovering drugs against RAS, one of the most important oncogenes in cancer."