Click here to close now.




















Welcome!

News Feed Item

Inovio Pharmaceuticals Unveils Potent New Immune Activator

Inovio develops DNA-based immune booster (IL-33) that enhances T-cell responses and generates effective CD8 mediated tumor regression

BLUE BELL, Pa., Jan. 23, 2014 /PRNewswire/ -- Inovio Pharmaceuticals, Inc. (NYSE MKT: INO) today unveiled that the company has developed a new DNA-based cytokine immune activator, interleukin -33 (IL-33), that in combination with optimized DNA vaccines delivered by electroporation increased the potency and efficacy of the therapeutic response to the DNA vaccines in a preclinical study. The findings of this study reveal that IL-33 could be an effective immune booster when used with Inovio's products to generate therapeutic immune responses against cancers and chronic viral infections in humans. Inovio has developed a portfolio of patent-protected IL-33 and other immune activators to form combination therapies with its DNA vaccines and immunotherapies with the goal of achieving the greatest possible efficacy against targeted diseases.

A therapeutic vaccine study treating HPV-16 based cancer-bearing mice demonstrated rapid and complete tumor regression after treatment with Inovio's HPV16 (human papillomavirus type 16) vaccine in combination with DNA-based IL-33. Both were delivered using Inovio's CELLECTRA® electroporation device. Previous studies have shown that the HPV 16 DNA vaccine alone was able to prevent tumor growth in mice and delay progression or cure mice of tumors. Addition of the IL-33 immune activator resulted in a more rapid and complete regression of established tumors in the mouse model.

The adjuvant/vaccine combination induced potent CD4 and CD8 T cells. Notably, inclusion of the DNA-based IL-33 immune activator significantly increased the magnitude of vaccine-specific CD8 T cell responses. Prior research has demonstrated that CD4 and CD8 T cells are both important in cellular immune responses; however, CD8 T-cells, or killer T cells, are considered especially integral to fighting cancers and chronic infectious diseases.

The peak vaccine-induced expansion of CD8 T cells at 14 days after vaccination correlated with complete tumor regression. This desirable outcome points to the important role IL-33 and other immune activators may play in combination with Inovio's cancer treatments in development.

The results of this study, conducted by Inovio scientists and collaborators, are detailed in a paper entitled: "Alarmin IL-33 acts as potent immunoadjuvant enhancing antigen-specific cell-mediated immunity and inducing potent anti-tumor immunity," published in Cancer Research.

Dr. J. Joseph Kim, Inovio's President and CEO, said: "To create the most effective arsenal of therapeutic products against cancer and infectious diseases, we are researching combination therapies using our DNA immunotherapies with checkpoint inhibitors and immune activators to optimize their therapeutic effects. While we have already reported best-in-class T cell responses from two DNA vaccines in human trials, this published study shows for the first time how DNA-based IL-33 can boost antigen-specific immune responses generated by our DNA immunotherapies and vaccines.

"We are developing multiple DNA plasmid based cytokine and chemokine genes as immune activators and I am proud to say that Inovio has more of these immune activators in its pipeline than anyone else in the world. We have initiated human studies using other DNA-based cytokines and look forward to moving IL-33 into clinical trials in combination with our DNA vaccines," Dr. Kim added.

About Inovio's Immune Activators

Immune activators can play a vital role in augmenting antigen-specific immune responses such as those generated by Inovio's DNA vaccines. Inovio's portfolio of patent-protected immune boosters vary in their ability to enhance (activate) therapeutic T cells or preventive antibodies, modulate the type of immune responses produced by the vaccine, impact durability of immune responses, and drive immune responses to sites of infection, e.g. mucosal surfaces. Different immune activators can therefore play unique roles in achieving desired immune responses generated by DNA immunotherapies and vaccines. Moreover, while some protein based cytokines and chemokines have been shown to have severe toxicity, likely due to their dosing and systemic delivery, Inovio's DNA-based cytokines and chemokines are delivered together with the vaccines as DNA plasmids and are produced locally at the injection site to drive the production of immune responses without systemic effects.

Inovio has deployed two different DNA immune activators in human studies with electroporation delivery. Inovio previously reported that in a published clinical study its DNA-based IL-12 immune activator enhanced antigen-specific T cell immune responses from its HIV DNA vaccine, PENNVAX®. In that study, 89% of the subjects who received IL-12 DNA together with the PENNVAX® DNA vaccine delivered with electroporation produced a vaccine specific CD4+ or CD8+ T cell response compared to 67% who received the DNA vaccine alone without the IL-12 DNA. To exploit these boosting properties, Inovio plans to test its cancer immunotherapy products in combination with DNA IL-12 in upcoming cancer trials. Additionally, a second cytokine based DNA immune activator, Inovio's DNA-based IL-28, in combination with its multi-antigen hepatitis C DNA vaccine, INO-8000, is being tested in a phase I study in HCV patients. Inovio has in its portfolio over ten (10) important cytokine and chemokine genes which have shown in preclinical studies to boost either T cell or antibody-based immune responses to the vaccines and therapies.

About Inovio Pharmaceuticals, Inc.

Inovio is revolutionizing vaccines to prevent and treat today's cancers and challenging infectious diseases. Its SynCon® vaccines, in combination with its proprietary electroporation delivery, are generating best-in-class immune responses, with therapeutic T-cell responses exceeding other technologies in terms of magnitude, breadth, and response rate. Human data to date have shown a favorable safety profile. Inovio's lead vaccine, a therapeutic against HPV-caused pre-cancers and cancers, is in phase II. Other phase I and preclinical programs target prostate, breast, and lung cancers as well as HIV, influenza, malaria and hepatitis. Partners and collaborators include Roche, the University of Pennsylvania, Merck, NIH, HIV Vaccines Trial Network, National Cancer Institute, U.S. Military HIV Research Program, University of Southampton, US Dept. of Homeland Security, University of Manitoba and PATH Malaria Vaccine Initiative. More information is available at www.inovio.com.

This press release contains certain forward-looking statements relating to our business, including our plans to develop electroporation-based drug and gene delivery technologies and DNA vaccines and our capital resources. Actual events or results may differ from the expectations set forth herein as a result of a number of factors, including uncertainties inherent in pre-clinical studies, clinical trials and product development programs (including, but not limited to, the fact that pre-clinical and clinical results referenced in this release may not be indicative of results achievable in other trials or for other indications, that the studies or trials may not be successful or achieve the results desired, that pre-clinical studies and clinical trials may not commence or be completed in the time periods anticipated, that results from one study may not necessarily be reflected or supported by the results of other similar studies and that results from an animal study may not be indicative of results achievable in human studies), the availability of funding to support continuing research and studies in an effort to prove safety and efficacy of electroporation technology as a delivery mechanism or develop viable DNA vaccines, the adequacy of our capital resources, the availability or potential availability of alternative therapies or treatments for the conditions targeted by the company or its collaborators, including alternatives that may be more efficacious or cost-effective than any therapy or treatment that the company and its collaborators hope to develop, evaluation of potential opportunities, issues involving product liability, issues involving patents and whether they or licenses to them will provide the company with meaningful protection from others using the covered technologies, whether such proprietary rights are enforceable or defensible or infringe or allegedly infringe on rights of others or can withstand claims of invalidity and whether the company can finance or devote other significant resources that may be necessary to prosecute, protect or defend them, the level of corporate expenditures, assessments of the company's technology by potential corporate or other partners or collaborators, capital market conditions, the impact of government healthcare proposals and other factors set forth in our Annual Report on Form 10-K for the year ended December 31, 2012, our Form 10-Q for the quarter ended September 30, 2013, and other regulatory filings from time to time. There can be no assurance that any product in Inovio's pipeline will be successfully developed or manufactured, that final results of clinical studies will be supportive of regulatory approvals required to market licensed products, or that any of the forward-looking information provided herein will be proven accurate.

CONTACTS:

Investors:

Bernie Hertel, Inovio Pharmaceuticals, 858-410-3101, [email protected]

Media:

Jeff Richardson, Inovio Pharmaceuticals, 267-440-4211, [email protected]

(Logo: http://photos.prnewswire.com/prnh/20131118/LA18202LOGO)

SOURCE Inovio Pharmaceuticals, Inc.

More Stories By PR Newswire

Copyright © 2007 PR Newswire. All rights reserved. Republication or redistribution of PRNewswire content is expressly prohibited without the prior written consent of PRNewswire. PRNewswire shall not be liable for any errors or delays in the content, or for any actions taken in reliance thereon.

Latest Stories
In their session at 17th Cloud Expo, Hal Schwartz, CEO of Secure Infrastructure & Services (SIAS), and Chuck Paolillo, CTO of Secure Infrastructure & Services (SIAS), provide a study of cloud adoption trends and the power and flexibility of IBM Power and Pureflex cloud solutions. In his role as CEO of Secure Infrastructure & Services (SIAS), Hal Schwartz provides leadership and direction for the company.
There are many considerations when moving applications from on-premise to cloud. It is critical to understand the benefits and also challenges of this migration. A successful migration will result in lower Total Cost of Ownership, yet offer the same or higher level of robustness. In his session at 15th Cloud Expo, Michael Meiner, an Engineering Director at Oracle, Corporation, analyzed a range of cloud offerings (IaaS, PaaS, SaaS) and discussed the benefits/challenges of migrating to each offe...
SYS-CON Events announced today that the "Second Containers & Microservices Expo" will take place November 3-5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. Containers and microservices have become topics of intense interest throughout the cloud developer and enterprise IT communities.
As organizations shift towards IT-as-a-service models, the need for managing and protecting data residing across physical, virtual, and now cloud environments grows with it. CommVault can ensure protection and E-Discovery of your data – whether in a private cloud, a Service Provider delivered public cloud, or a hybrid cloud environment – across the heterogeneous enterprise. In his session at 17th Cloud Expo, Randy De Meno, Chief Technologist - Windows Products and Microsoft Partnerships at Com...
The Software Defined Data Center (SDDC), which enables organizations to seamlessly run in a hybrid cloud model (public + private cloud), is here to stay. IDC estimates that the software-defined networking market will be valued at $3.7 billion by 2016. Security is a key component and benefit of the SDDC, and offers an opportunity to build security 'from the ground up' and weave it into the environment from day one. In his session at 16th Cloud Expo, Reuven Harrison, CTO and Co-Founder of Tufin,...
Scrum Alliance has announced the release of its 2015 State of Scrum Report. Almost 5,000 individuals and companies worldwide participated in this year's survey. Most organizations in the market today are still leading and managing under an Industrial Age model. Not only is the speed of change growing exponentially, Agile and Scrum frameworks are showing companies how to draw on the full talents and capabilities of those doing the work in order to continue innovating for success.
SYS-CON Events announced today that MobiDev, a software development company, will exhibit at the 17th International Cloud Expo®, which will take place November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. MobiDev is a software development company with representative offices in Atlanta (US), Sheffield (UK) and Würzburg (Germany); and development centers in Ukraine. Since 2009 it has grown from a small group of passionate engineers and business managers to a full-scale mobi...
Between the compelling mockups and specs produced by your analysts and designers, and the resulting application built by your developers, there is a gulf where projects fail, costs spiral out of control, and applications fall short of requirements. In his session at @DevOpsSummit, Charles Kendrick, CTO and Chief Architect at Isomorphic Software, presented a new approach where business and development users collaborate – each using tools appropriate to their goals and expertise – to build mocku...
Container technology is sending shock waves through the world of cloud computing. Heralded as the 'next big thing,' containers provide software owners a consistent way to package their software and dependencies while infrastructure operators benefit from a standard way to deploy and run them. Containers present new challenges for tracking usage due to their dynamic nature. They can also be deployed to bare metal, virtual machines and various cloud platforms. How do software owners track the usag...
SYS-CON Events announced today that VividCortex, the monitoring solution for the modern data system, will exhibit at the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. The database is the heart of most applications, but it’s also the part that’s hardest to scale, monitor, and optimize even as it’s growing 50% year over year. VividCortex is the first unified suite of database monitoring tools specifically desi...
Graylog, Inc., has added the capability to collect, centralize and analyze application container logs from within Docker. The Graylog logging driver for Docker addresses the challenges of extracting intelligence from within Docker containers, where most workloads are dynamic and log data is not persisted or stored. Using Graylog, DevOps and IT Ops teams can pinpoint the root cause of problems to deliver new applications faster and minimize downtime.
As Marc Andreessen says software is eating the world. Everything is rapidly moving toward being software-defined – from our phones and cars through our washing machines to the datacenter. However, there are larger challenges when implementing software defined on a larger scale - when building software defined infrastructure. In his session at 16th Cloud Expo, Boyan Ivanov, CEO of StorPool, provided some practical insights on what, how and why when implementing "software-defined" in the datacent...
Learn how you can use the CoSN SEND II Decision Tree for Education Technology to make sure that your K–12 technology initiatives create a more engaging learning experience that empowers students, teachers, and administrators alike.
Mobile, social, Big Data, and cloud have fundamentally changed the way we live. “Anytime, anywhere” access to data and information is no longer a luxury; it’s a requirement, in both our personal and professional lives. For IT organizations, this means pressure has never been greater to deliver meaningful services to the business and customers.
In a recent research, analyst firm IDC found that the average cost of a critical application failure is $500,000 to $1 million per hour and the average total cost of unplanned application downtime is $1.25 billion to $2.5 billion per year for Fortune 1000 companies. In addition to the findings on the cost of the downtime, the research also highlighted best practices for development, testing, application support, infrastructure, and operations teams.