Kite Pharma Announces Publication of T-Cell Therapy Targeting Mutant KRAS in Cancer by the National Cancer Institute (NCI) in New England Journal of Medicine

On December 12, 2016 Kite Pharma, Inc. (Nasdaq:KITE) reported that characterizations of T cell receptor candidates which it has licensed under the Cooperative Research and Development Agreement (CRADA) with the National Institutes of Health (NIH) have been published in the December 8, 2016 New England Journal of Medicine (NEJM) (Press release, Kite Pharma, DEC 12, 2016, View Source [SID1234517047]).

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The research, led by Steven A. Rosenberg, M.D., Ph.D., chief of the Surgery Branch at NCI’s Center for Cancer Research, and a scientific collaborator with Kite, describes a patient with KRAS mutant metastatic colorectal cancer who was successfully treated with T cells that are reactive to KRAS G12D mutation. This work follows previously reported treatment of a patient with advanced cholangiocarcinoma with T cells targeting a mutated erbb2 interacting protein.

"We are very excited to see the results of this landmark study conducted by Dr. Rosenberg and his team at the NCI. These findings represent proof of concept that T-cell technology directed against neoantigens can be utilized to treat solid tumors," said David Chang, M.D., Ph.D., Executive Vice President, Research and Development, and Chief Medical Officer of Kite.

As published in the NEJM publication, mutations in the KRAS gene are thought to drive 95 percent of all pancreatic cancers and 45 percent of all colorectal cancers. The G12D mutation is the most common KRAS mutation and is estimated to occur in more than 50,000 new cases of cancer in the United States each year.

In September 2016, Kite announced that it had entered into an exclusive, worldwide license with NIH for intellectual property related to multiple TCR-based product candidates for the treatment of tumors expressing mutated KRAS antigens. These TCR product candidates were developed in the laboratories of Steven A. Rosenberg, M.D., Ph.D., and James C. Yang, M.D., of the NCI.

Atreca Announces Lead Preclinical Projects in Cancer Immunotherapy and Additional Disease Indications

On December 12, 2016 Atreca, Inc., a biotechnology company focused on developing novel therapeutics based on a deep understanding of the human immune response, reported positive preclinical findings generated using the Company’s Immune Repertoire Capture (IRC) technology, presented at the IBC Antibody Engineering & Therapeutics Conference being held in San Diego, California, December 11-15, 2016 (Press release, Atreca, DEC 12, 2016, View Source [SID1234522960]). In a presentation entitled "Analyzing B-cell Receptor Repertoires from Human Studies," Daniel Emerling, Ph.D., Atreca’s Senior Vice President, Research, provided a summary of key findings from the Company’s preclinical programs, including:

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Atreca’s IRC technology has identified and generated antibodies from active human immune responses, including antibodies from cancer patients who have responded well to immunotherapy and other treatments, patients with autoimmune disease, vaccinated subjects, and patients with infections.
Atreca’s immuno-oncology program is advancing antibodies that selectively bind tumor tissue types beyond that of the original patient and display potent antitumor activity in vivo.
Dr. Emerling stated, "Atreca’s IRC platform has demonstrated in preclinical disease models the power of mining a patient’s own anti-tumor immunity. In one of our applications of IRC, we generate natively paired antibody heavy and light chain sequences from blood plasmablasts – activated B cells – that are critical to the body’s own immune response to cancer and pathogens. As our programs progress, we anticipate being able to advance these promising biologic agents for potential use in cancer immunotherapy, vaccines, and diverse additional therapeutic applications."

"Over the past year, Atreca has made substantial progress both in advancing our internal and partnered programs and attracting world-class experts to our leadership team and advisory group," said Tito A. Serafini, Ph.D., Atreca’s President, Chief Executive Officer, and Co-Founder. "We will continue to advance multiple programs through preclinical studies to the clinic, with a primary focus on cancer immunotherapy applications of our novel and proprietary IRC platform."

More information on the Antibody Engineering & Therapeutics Conference is available at: View Source

NantKwest Announces Enhanced High-Affinity Activated Natural Killer (haNK) Cell Therapy in Preclinical Studies of HER2 Positive Breast Cancer at Presentation at the San Antonio Breast Cancer Symposium

On December 12, 2016 NantKwest Inc. (Nasdaq:NK), a pioneering, next generation, clinical-stage immunotherapy company focused on harnessing the unique power of our immune system using natural killer (NK) cells to treat cancer, infectious diseases and inflammatory diseases, reported that the company presented results from a preclinical study on the company’s high affinity Natural Killer (haNK) cell therapy program at the San Antonio Breast Cancer Symposium (SABCS) in San Antonio, TX, which was held on December 6-10, 2016 (Press release, NantKwest, DEC 12, 2016, http://ir.nantkwest.com/phoenix.zhtml?c=254059&p=RssLanding&cat=news&id=2229036 [SID1234517050]).

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Previous studies have shown that patients with HER2 positive breast cancer who have the high-affinity CD16 receptor that have been treated with Herceptin (trastuzumab) had better clinical outcomes versus those without the high affinity receptor. In this study, in a mouse xenograft model of HER2 positive breast cancer, to enhance the activity of aNK (activated natural killer) cell therapy aNK cells were engineered to express the CD16 high affinity Fc receptor (haNK cells). Study results reported provide further supporting evidence that antibody-dependent cellular cytotoxicity (ADCC) mediated cancer cell killing can be further enhanced through the recognition of the Fc fragment of a therapeutic antibody, in this case Herceptin, and the haNK cell’s CD16 Fc receptor.

"In over 50 patients in a broad range of cancer types, NantKwest’s aNK cell therapy has demonstrated promising indications of efficacy and an excellent safety record," said Patrick Soon-Shiong, MD, Chairman and CEO of NantKwest. "In this study, haNK cell therapy in combination with Herceptin was highly synergistic, resulting in tumor regression and significantly better efficacy in comparison to either agent alone. This data, highlighting the potential benefit of combining haNK cell therapy with Herceptin in patients with HER2-positive breast cancer, provides further supportive evidence and a solid foundation to fast track this program into human clinical trials."

Collaborating on the study were research scientists from NantBiosciences, NantCell and NantKwest.

Presentation Summary

High-affinity Activated Natural Killer (haNK) Cells Augment Trastuzumab Efficacy in a Mouse Model of HER2-positive Human Metastatic Breast Cancer
Abstract #P2-04-1-466
Presenter: Shahrooz Rabizadeh, PhD, NantBiosciences Inc., Culver City, CA
Thursday, December 8, 2016, 7:30 AM, Room Hall 1
This poster reviews the potential synergistic use of haNK cell therapy in combination with Herceptin (trastuzumab) in patients with HER2-positive breast cancer.

Peregrine Pharmaceuticals Reports Financial Results for Second Quarter of Fiscal Year 2017 and Recent Developments

On December 12, 2016 Peregrine Pharmaceuticals, Inc. (NASDAQ:PPHM) (NASDAQ:PPHMP), a biopharmaceutical company committed to improving patient lives by manufacturing high quality products for biotechnology and pharmaceutical companies and advancing its proprietary R&D pipeline, reported financial results for the second quarter of fiscal year (FY) 2017 ended October 31, 2016, and provided an update on its contract manufacturing business, clinical pipeline and other corporate developments (Press release, Peregrine Pharmaceuticals, DEC 12, 2016, View Source [SID1234517052]).

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Highlights Since July 31, 2016
"The Avid business is on track to continue its revenue growth this fiscal year as we move toward overall profitability within the next 18 months. Our two facilities have the potential to generate in excess of $80 million in revenue, leaving additional capacity for revenue growth beyond fiscal year 2017 revenue guidance," stated Steven W. King, president and chief executive officer of Peregrine. "We are moving forward with our plans to construct a third manufacturing facility, with an eye toward efficiencies that will reduce the overall cost of construction and operation. While this may delay the new facility launch until later in calendar year 2017, we currently have adequate existing capacity to continue meeting the needs of our current clients while also bringing in new customers so we do not expect it to impact our near-term ability to grow top-line revenue as originally planned. Independently, Avid is a successful and growing CDMO business generating significant revenue and one of our key goals going forward is to help ensure that its value is appropriately represented in the market cap of our overall business."
Mr. King continued, "During, and subsequent to, the second quarter, we announced a series of important findings, all of which will contribute to our future development of bavituximab. Our ongoing analysis of the Phase III SUNRISE data has revealed a promising biomarker that may give us insight into key patient populations. We are actively evaluating additional potential biomarkers and we hope to identify a profile for patients who will receive therapeutic benefit from treatment with bavituximab. Concurrent with our internal clinical work, our collaborators at NCCN are in the process of initiating trials for three new bavituximab combination treatments, which we expect to begin enrolling patients in the coming months. What is exciting is that the NCCN studies will help build on developments we are seeing from our internal scientists, as well as our collaborators at Duke, Rutgers and Memorial Sloan Kettering Cancer Center. Together, we presented compelling data supporting our long-standing belief that bavituximab significantly impacts the tumor microenvironment, creating a more immune active environment in which other therapies, including checkpoint inhibitors, are able to have a greater anti-tumor effect. These findings are highly validating and we look forward to continuing our work with these world-class institutions to help guide clinical development."
Avid Bioservices Highlights
"Growing top-line revenue is a key focus and we are pleased to report a 53% improvement in contract manufacturing revenue for the current six-month period compared to the same period last fiscal year. In addition, our revenue guidance for the second quarter was targeted to exceed $20 million and we achieved $23.4 million in contract manufacturing revenue as we worked closely with the third-party testing laboratory to resolve the unexpected delays in testing we encountered during the first quarter. As a result, we reaffirm our manufacturing revenue guidance of between $50 and $55 million for the full fiscal year," stated Paul Lytle, chief financial officer of Peregrine. "We also continued to advance the validation of three separate manufacturing processes related to third-party customer products that could lead to future commercial manufacturing for these products. While these activities generally have a higher cost of manufacturing, which impacted our gross margin during the second quarter, we believe our investment in these products will provide us future revenue opportunities once these products are approved."
The company reaffirms its manufacturing revenue guidance for the full FY 2017 of $50 – $55 million.

Avid’s current manufacturing revenue backlog is $73 million, representing estimated future manufacturing revenue to be recognized under committed contracts. This backlog mostly covers revenue to be recognized during the remainder of fiscal year 2017 and fiscal year 2018.
Clinical Development Highlights
Through the ongoing analysis of the Phase III SUNRISE data, Peregrine scientists identified a correlation between overall survival and pre-treatment levels of the biomarker, beta-2 glycoprotein-1 (β2GP1), which we presented at ESMO (Free ESMO Whitepaper) in October.

Data demonstrated that patients with pre-treatment β2GP1 levels between 200 and 240 µg/mL – representing approximately 30% of randomized patients – achieved a statistically significant, 5.5-month improvement, from 7.7 months to 13.2 months, in median overall survival as compared to patients in the control group with the same range of β2GP1 levels.

Peregrine’s research collaboration with NCCN is advancing as planned, with grants awarded to three investigators to support research of bavituximab in combination with other therapeutics for the following studies:

Phase I Trial of Sorafenib and Bavituximab Plus Stereotactic Body Radiation Therapy (SBRT) for Unresectable Hepatitis C Associated Hepatocellular Carcinoma

Phase I/II Clinical Trial of Bavituximab with Radiation and Temozolomide for Patients with Newly Diagnosed Glioblastoma

Phase II Study of Pembrolizumab and Bavituximab for Progressive Recurrent/Metastatic Squamous Cell Carcinoma of the Head and Neck
The company expects these trials to begin over the coming months.

Research Highlights
Peregrine scientists and collaborators from Duke University Medical Center, Rutgers University College of Medicine, and Memorial Sloan Kettering Cancer Center each presented compelling data demonstrating that shifts in the tumor microenvironment from immune suppressed to immune active occurred when a bavituximab equivalent antibody was administered as part of a combination treatment regimen. Presentations addressed multiple phosphatidylserine (PS)-targeting combinations, including those with checkpoint inhibitors such as anti-PD-1, anti-PD-L1 and anti-LAG3, as well as with radiation or chemotherapy. These data suggest that the addition of PS-targeting reverses an immunosuppressive tumor environment, creating an immune active tumor microenvironment that can potentially convert patients that generally do not respond to immuno-oncology (I-O) therapies into responders. Key presentations were made at the Second International Cancer Immunotherapy Conference (CIMT) (Free CIMT Whitepaper) in September, the American Association for Cancer Research (AACR) (Free AACR Whitepaper)’s Tumor Immunology and Immunotherapy Conference in October, the Society for Immunotherapy of Cancer (SITC) (Free SITC Whitepaper) in November, and the San Antonio Breast Cancer Symposium in December.
Financial Highlights and Results
Peregrine continues to execute its previously-announced strategy to reach sustained profitability by increasing contract manufacturing revenue while decreasing research and development expenses, with the goal of reaching profitability 18 months from now. During the first six months of FY 2017, the company made significant progress toward this goal with contract manufacturing revenues increasing 53% compared to the first six months of FY 2016 and research and development expenses decreasing by 45% compared to the first six months of FY 2016.

Contract manufacturing revenue from Avid’s clinical and commercial biomanufacturing services provided to its third-party customers increased to $23,370,000 for the second quarter of FY 2017 compared to $9,523,000 for the second quarter of FY 2016. In addition, as previously-announced, a backlog at a third-party testing lab, unrelated to product quality, required that the recognition of some revenue be shifted from the first quarter to the second quarter of fiscal year 2017.

Total costs and expenses for the second quarter of FY 2017 were $27,447,000, compared to $23,347,000 for the second quarter of FY 2016. For the second quarter of FY 2017, research and development expenses decreased 51% to $7,022,000, compared to $14,190,000 for the second quarter of FY 2016. Cost of contract manufacturing increased to $15,441,000 in the second quarter of FY 2017 compared to $4,741,000 for the second quarter of FY 2016, primarily due to an increase in the cost of contract manufacturing associated with higher reported revenue. Also contributing to this increase and impacting gross margins for the period is the higher cost of operating the new Myford facility as well as the higher cost associated with performing process validation runs during the quarter. For the second quarter of FY 2017, selling, general and administrative expenses increased to $4,984,000 compared to $4,416,000 for the second quarter of FY 2016 primarily due to the company’s growing manufacturing business.

Peregrine’s consolidated net loss attributable to common stockholders was $5,498,000 or $0.02 per share, for the second quarter of FY 2017, compared to a net loss attributable to common stockholders of $14,578,000, or $0.07 per share, for the same prior year quarter.

Peregrine reported $49,055,000 in cash and cash equivalents as of October 31, 2016, compared to $61,412,000 at fiscal year ended April 30, 2016.
More detailed financial information and analysis may be found in Peregrine’s Quarterly Report on Form 10-Q, which will be filed with the Securities and Exchange Commission today.

Novocure Presents Phase 2 Pilot INNOVATE Trial Results Suggesting Tumor Treating Fields Plus Paclitaxel may be Safe as First-Line Treatment and may Improve Survival of Patients with Recurrent Ovarian Cancer

On December 12, 2016 Novocure (NASDAQ: NVCR) presented data from its phase 2 pilot INNOVATE clinical trial at its research and development day suggesting that Tumor Treating Fields (TTFields) in combination with weekly paclitaxel is tolerable and safe in patients with recurrent ovarian cancer (Press release, NovoCure, DEC 12, 2016, View Source [SID1234517055]). The data also suggested more than doubling of the progression free survival and an improvement in overall survival among patients who received TTFields therapy with paclitaxel compared to a recent phase 3 trial of patients who received paclitaxel alone¹.

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Novocure will submit the data for presentation at an upcoming medical conference and will begin planning a phase 3 pivotal trial in recurrent ovarian cancer.

"These results are promising," said Dr. Eilon Kirson, Novocure’s Chief Science Officer and Head of Research and Development. "Recurrent ovarian cancer is a very difficult to treat disease that quickly develops resistance to multiple types of chemotherapies. We are committed to researching TTFields as a potential treatment for ovarian cancer and look forward to beginning a phase 3 pivotal trial."

About Ovarian Cancer

Ovarian cancer is the fifth most common cause of cancer death in women in the United States. The National Cancer Institute estimated that in 2016, there were approximately 22,000 new cases of ovarian cancer diagnosed and approximately 14,000 deaths in the United States. Ovarian cancer incidence increases with age, and the median age at time of diagnosis is 63 years old. The five-year survival rate is 44 percent, and the majority of patients present at advanced stage with 60 percent having metastatic disease. TTFields therapy is not approved for the treatment of ovarian cancer by the U.S. Food and Drug Administration. The safety and effectiveness of TTFields therapy for ovarian cancer has not been established.