Zymeworks Receives FDA Acceptance of IND Application for ZW25, a Novel Bi-Specific Antibody, for the Treatment of HER2-Expressing Cancers

On August 18, 2016 Zymeworks Inc., a biopharmaceutical company discovering and developing innovative multi-functional protein-based therapeutics, including bi-specific antibodies and drug conjugates, for the treatment of cancer, reported that the United States Food and Drug Administration (FDA) has accepted the Company’s Investigational New Drug (IND) application for ZW25 for the treatment of certain HER2-expressing cancers (Press release, Zymeworks, AUG 18, 2016, View Source [SID:1234514640]). The Phase 1 clinical trial for ZW25 is anticipated to begin in late August of this year.

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ZW25 is Zymeworks’ lead therapeutics program. It is a novel bi-specific antibody, developed using the Company’s industry-leading Azymetric platform, to target two different epitopes (bi-paratopic targeting) of the human epidermal growth factor receptor 2 (HER2) protein, which is over-expressed on the surface of many tumor types, including certain breast, gastric, lung, and ovarian cancers. ZW25 will be evaluated in the clinic for safety as well as efficacy in patients with tumors with low to moderate levels of HER2 expression. There are significant unmet medical needs for these patients as the current standard of care treatment approaches do not include HER2-targeted immunotherapies such as ZW25.

"We are proud and excited to advance ZW25 into clinical trials. We strongly believe ZW25 will address the needs of many HER2-expressing cancer patients, especially those who do not qualify for targeted HER2 therapies and other biologics," said Ali Tehrani, Ph.D., Zymeworks’ President & CEO. "We remain committed to the research and development of protein based therapeutics to address unmet medical needs and that we believe will result in patients returning home to their loved ones, cancer free."

"We’re pleased the FDA has cleared ZW25 for this first Phase 1 study in patients with locally advanced and/or metastatic HER2-expressing cancers and we look forward to initiating this clinical program in late August," said Diana Hausman, M.D., Zymeworks’ Chief Medical Officer. "This is a significant milestone for Zymeworks and for the development of ZW25, and we are excited about its therapeutic potential in HER2-expressing cancers."

Previously, the FDA granted Orphan Drug Designation to Zymeworks’ ZW25 for the treatment of ovarian cancer. Orphan designation qualifies Zymeworks for a number of development incentives, including tax credits for clinical testing and marketing exclusivity for a period of seven years if ZW25 is approved for this indication.

About ZW25

ZW25 is Zymeworks’ lead therapeutics program based on the Azymetric platform. It is an engineered bi-specific antibody that targets two different epitopes (bi-paratopic targeting) of the HER2 protein and confers its efficacy via multiple mechanisms of action, including: (i) enhanced antibody-mediated effector function resulting from the increased decoration of the tumor cell surface; (ii) increased blockade of the HER2 cellular growth signal by the dual engagement of HER2 epitopes; and (iii) increased removal of surface-expressed HER2 protein due to enhanced HER2 internalization upon antibody engagement. ZW25 as a best-in-class HER2-targeting antibody for a variety of tumors characterized by HER2 overexpression, including breast, gastric, ovarian, colorectal and non-small cell lung cancers.

About Azymetric Platform

Bi-specific antibodies developed using the Azymetric platform resemble conventional mono-specific antibodies while being able to simultaneously bind to two different targets resulting in additive or synergistic therapeutic responses. Azymetric antibodies spontaneously assemble into a single molecule with two different Fab domains comprising of unique heavy and light chain pairings. Azymetric antibodies are manufactured using conventional monoclonal antibody processes and can be easily adapted to rapidly screen target and sequence combinations for bi-specific activity in the final therapeutic format, thereby significantly reducing drug development timelines.

Immune Pharmaceuticals Provides Business and R&D Update and Announces Second Quarter 2016 Financial Results

On August 16, 2016 Immune Pharmaceuticals Inc. (NASDAQ:IMNP) ("Immune" or the "Company") reported financial results for the second quarter and six months ended June 30, 2016 as well as provided pipeline highlights and a business update (Press release, Immune Pharmaceuticals, AUG 18, 2016, View Source [SID:1234514638]).

"Immune has continued to make significant R&D and operational progress, while we seek to unlock the potential value of our pipeline through institutional financing and corporate transaction opportunities," said Dr. Daniel Teper, CEO of Immune Pharmaceuticals Inc.

Pipeline Highlights
Immuno-inflammation
· Bertilimumab continues to accrue patients in its two phase 2a clinical trials in bullous pemphigoid (BP) and ulcerative colitis (UC). The BP trial is expanding to six US centers in addition to the two Israeli centers. The first US center was initiated in August 2016 and started to screen patients with others to follow shortly. The UC trial is expanding to Eastern Europe with site initiations to be completed in the fourth quarter of 2016. An additional phase 2a trial in Atopic Dermatitis (AD) is in final planning stages in Canada.
· In the second quarter of 2016, new pre-clinical data was generated in AD and a new provisional patent was filed in partnership with Hadasit, the technology transfer of Hadassah hospital, for oral use of anti-eotaxin antibodies in Non-Alcoholic Steato-Hepatitis (NASH).
· Immune also advanced process development for its new cell line for the production of bertilimumab. Immune expects to bridge to the new cell line starting in mid-2017. Immune is assessing options for development of a sub-cutaneous formulation of bertilimumab.
· Immune advanced the development of NanoCyclo, a topical formulation of cyclosporine A for the potential treatment of AD and psoriasis. We are currently focused on the GMP manufacturing process and pre-clinical regulatory studies toward filing of an Investigational New Drug application in 2017.

Immuno-oncology
We are continuing to advance our plans to focus on our two clinical stage assets in oncology, Ceplene and Azixa and have made significant progress in the past quarter with both of these assets.
· Ceplene is approved in Europe for remission maintenance and prevention of relapse in adults with Acute Myeloid Leukemia (AML), an orphan indication with poor survival prognosis, for which no effective therapy is available to patients.
· Presented new positive biomarker driven clinical data from the European Phase IV study at the American Association of Cancer Research (AACR) (Free AACR Whitepaper) Annual meeting in New Orleans in April 2016. The phase IV RE:MISSION trial was designed to assess the immuno-modulatory properties of Ceplene/IL-2, and to correlate potential biomarkers with clinical outcome. Results indicated that outcomes were strongly predicted with a specific T-cell biomarker including leukemia-free survival (LFS) (HR 0.25, P=0.001) and overall survival (OS) (HR 0.24, P=0.009).
· Reported new data showing that Ceplene enhanced response to PD-1 and PD-L1 checkpoint inhibitors in lymphoma and solid tumor models. This data is supporting the provisional patent application filed in the first quarter of 2016 for use of Ceplene in combination with check point inhibitors.
· Presented new data at the Conference "Regulatory Myeloid Suppressor Cells: From Basic Discovery to Therapeutic Application" held in Philadelphia, PA providing further mechanistic evidence to explain the promising efficacy of Ceplene in combination with low dose IL-2 observed clinically in the myelomonocytic M4 and M5 AML subtypes in both Phase III and the recently completed Phase IV clinical trials.

· Immune now plans to leverage recent Ceplene/IL-2 data on predictive bio-markers and recent phase IV data results to design and reach an agreement with the FDA for a pivotal study in AML supporting a new drug application in the U.S.

· Azixa is a novel microtubule destabilizer that has a dual mode of action, acting as a vascular disrupting agent (VDA) and a potent cytotoxin with a unique ability to penetrate the blood brain barrier and reach high concentrations in the brain.
· Generated and reported new data demonstrating that the combination of Azixa and immune checkpoint inhibitors such as anti-CTLA-4 antibody resulted in enhanced activity compared to the activity elicited by the single agents alone.
· Filed a provisional patent application with the USPTO relating to the combination of Azixa and immune checkpoint inhibitors such as an anti-CTLA-4 antibody and anti-PD1 monoclonal antibodies in the treatment of cancer.

Business Update
On July 18, 2016, the Company signed an amendment to the May 15, 2016 Option Agreement with Novel Pain Therapeutics, LLC (NPT), a syndicate of experienced healthcare investors. Immune agreed to designate a subsidiary that will hold all of the Intellectual Property for Immune’s pain assets (Amiket, Amiket Nano and LidoPain). Under the terms of the Amended Option Agreement, the parties have agreed to a pre-money valuation of $15 million for Immune’s equity stake in the pain subsidiary with a target closing date of September 15, 2016 for the first tranche of dedicated financing by NPT and other investors. In addition, subject to the exercise of the Option Agreement and the execution of the definitive License Agreement, as well as the ultimate development, sale and/or licensing of the products, Immune will be eligible to receive up to $145 million in milestone payments as well as sublicensing fees and royalties.

Second Quarter and Six Months Ended June 30, 2016 Financial Discussion
Immune reported a loss attributable to common stockholders of $5.7 million, or $0.13 per share, for the quarter ended June 30, 2016, compared to a loss attributable to common stockholders of $2.9 million, or $0.12 per share, for the quarter ended June 30, 2015. For the six months ended June 30, 2016, Immune reported a loss attributable to common stockholders of $11.7 million, or $0.30 per share, compared to a loss attributable to common stockholders of $8.2 million, or $0.34 per share, for the six months ended June 30, 2015.

Research and Development ("R&D") expenses increased by $0.8 million during the quarter ended June 30, 2016 to $1.9 million compared with $1.1 million during the quarter ended June 30, 2015. For the six months ended June 30, 2016 R&D expenses increased by $1.7 million to $4.0 million from $2.3 million. The increase in R&D expenses for the quarter and six months ended June 30, 2016 was primarily driven by higher salaries, employee benefits and share-based compensation as a result of higher R&D headcount. In addition, the increase in R&D expenses was driven by higher clinical trial expenses as the Company continues to ramp up its clinical trials related to bertilimumab in both BP and UC.

General and Administrative ("G&A") expenses decreased $0.8 million during the quarter ended June 30, 2016 to $0.9 million compared with $1.7 million during the quarter ended June 30, 2015, due to lower share based compensation expense and lower consulting and business development expenses. For the six months ended June 30, 2016 G&A expenses decreased by $0.6 million to $3.4 million from $4.0 million during the six months ended June 30, 2015 primarily due to lower share based compensation expense and lower legal fees.

Non-operating expense was $0.7 million during the three months ended June 30, 2016 compared with non-operating expense of $0.1 million during the three months ended June 30, 2015. For the six months ended June 30, 2016, non-operating expense was $1.4 million compared with $0.2 million for the six months ended June 30, 2015. Non-operating expense increased for the three and six months ended June 30, 2016 primarily relating to cash interest expense and amortization of debt issuance costs for the Company’s loan agreement and the loss on the change in fair value of derivative liability instrument.

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Operational Update

On August 18, 2016 Prima BioMed Ltd (ASX: PRR; NASDAQ: PBMD), reported an update on the Company’s cash position and the recruitment progress in its two active clinical trials in IMP321 (Press release, Prima Biomed, AUG 18, 2016, View Source [SID:1234514637]).

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Financial Position
As a result of careful financial management, Prima remains in a solid financial position, with approximately A$20M cash as of 30 June 2016. Based on the Company’s forecasts, the current operational cash reach has been extended well into the fourth quarter of 2017.

Clinical Trial Updates: IMP321
The IMP321 clinical samples were the first biologic manufactured in China to receive regulatory approval for administration in clinical trials in Europe. Prima is pleased to advise that both IMP 321 clinical programs are progressing well.

TACTI-mel (Two ACTive Immunotherapeutics in melanoma), the Company’s Australian melanoma trial, now has six clinical centres approved, all of which have been activated. Three patients have been recruited in the first cohort and no dose limiting toxicity has been reached. The open label, Phase I study will recruit up to 24 patients, with the first data expected in the fourth quarter of 2016. Patients with unresectable or metastatic melanoma will be dosed with IMP321 in combination with an approved checkpoint inhibitor.

AIPAC (Active Immunotherapy PAClitaxel), has recruited three out of the nine patients expected to be enrolled in the second cohort of the trial’s safety run-in phase. As announced in June, data from the initial open-label run-in cohort of six patients, who received 6 mg doses of IMP321 in combination with paclitaxel, confirmed the safety, pharmacokinetics and pharmacodynamics of IMP321.

The results of all 15 patients from the safety run-in phase of AIPAC are expected in the fourth quarter of 2016.

Nordic Nanovector completes recruitment of the first cohorts of Arm 3 and Arm 4 of expanded Phase 1/2 study of Betalutin® in NHL patients

On August 18, 2016 Nordic Nanovector ASA (OSE: NANO), a biotechnology company focusing on the development of novel targeted therapeutics in haematology and oncology, reported that the first cohorts of both Arm 3 and 4 of the expanded Lymrit 37-01 clinical study with Betalutin have been completed (Press release, Nordic Nanovector, AUG 18, 2016, http://www.nordicnanovector.com/article/Nordic-Nanovector-completes-recruitment-of-the-first-cohorts-of-Arm-3-and-Arm-4-of-expanded-Phase-1-2-study-of-Betalutin-in-NHL-patients/2277398 [SID:1234514641]). Betalutin is a novel anti-CD37 targeting Antibody Radionuclide Conjugate in development for the treatment of major types of non-Hodgkin lymphoma (NHL), including Follicular Lymphoma (FL).

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Arm 3 is investigating the safety and efficacy of Betalutin in relapsed FL patients pre-dosed with standard anti-CD20 immunotherapy (rituximab) on Day 0, a few hours prior to the administration of 15 MBq/kg Betalutin. Arm 4 is investigating the safety and efficacy of Betalutin in relapsed FL patients pre-dosed with high-dose unconjugated "cold" lilotomab (previously referred to as HH1) anti-CD37 antibody on Day 0, a few hours prior to the administration of 15 MBq/kg Betalutin.

Luigi Costa, Nordic Nanovector CEO, commented: "We are pleased to have completed the first cohorts of both Arm 3 and Arm 4 of the expanded Lymrit 37-01 study. These arms are designed to investigate if different pre-dosing regimens will allow the use of higher doses of Betalutin to potentially achieve even better efficacy and an even more compelling product profile. The role of pre-dosing is to potentially ensure better control of haematological side effects and more specific tumour targeting with Betalutin."

A potential decision to increase the dose of Betalutin to 17.5 MBq/kg or 20 MBq/kg in one or the other arm can be made based on the evaluation of the safety and efficacy data observed in these first 3 patients of both arm.

The Lymrit 37-01 study is a Phase 1/2 open label, single injection ascending dose study investigating three dose levels of Betalutin and different pre-dosing regimens in patients with relapsed NHL with the aim of identifying an optimal dose regimen to take into the Phase 2 PARADIGME study, which is expected to start in 2H 2017.

Zymeworks’ ZW25 and ZW33 Granted Orphan Drug Designation for Ovarian Cancer by U.S. Food and Drug Administration

On August 18, 2016 Zymeworks Inc., a biopharmaceutical company discovering and developing innovative multi-functional protein-based therapeutics, including bi-specific antibodies and drug conjugates for the treatment of cancer, reported that the United States Food and Drug Administration (FDA) has granted Orphan Drug Designation to Zymeworks’ lead investigational products ZW25 and ZW33 for the treatment of ovarian cancer (Press release, Zymeworks, AUG 18, 2016, View Source [SID:1234514639]). Orphan drug designation qualifies Zymeworks for a number of development incentives including tax credits for clinical testing and marketing exclusivity for a period of seven years if ZW25 or ZW33 is approved for this indication.

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ZW25 is Zymeworks’ lead therapeutics program and is due to begin Phase 1 clinical development in the U.S. in late August. It is a novel bi-specific antibody, developed using the Company’s industry-leading Azymetric platform, to target two different epitopes (bi-paratopic targeting) of the human epidermal growth factor receptor 2 (HER2) protein, which is over-expressed on the surface of many tumor types, including a subset of breast, gastric, lung, and ovarian cancers. ZW33 is a drug-conjugated version of ZW25 currently in development in preparation for an IND filing in early 2017.

"We are very excited with the potential of our novel engineered bispecific antibody ZW25 and its drug conjugate ZW33, as new treatment options for patients with ovarian cancer," said Gordon Ng, Ph.D., Chief Scientific Officer of Zymeworks. "We believe ZW25’s and ZW33’s multiple differentiated mechanisms of action can be significantly more efficacious than current HER2-directed treatments for HER2 expressing cancers and can enhance the range of current treatments available to these patients."

"We’re pleased that the FDA has recognized the significant need for new and better therapies for women with ovarian cancer, which remains the leading cause of death due to gynecological malignancies," said Diana Hausman, M.D., Chief Medical Officer of Zymeworks. "The granted orphan drug designations underscore the potential of both ZW25 and ZW33 in addressing this important unmet medical need. We are looking forward to initiating clinical development for this indication in the very near future."

Each year, more than 22,000 women in the U.S. are diagnosed with ovarian cancer and it is responsible for more than 14,000 deaths. There are currently no HER2-targeted treatments approved for ovarian cancer and poses a significant unmet medical need for patients.

About ZW25

ZW25 is Zymeworks’ lead therapeutics program based on the Azymetric platform. It is an engineered bi-specific antibody that targets two different epitopes (bi-paratopic targeting) of the HER2 protein and confers its efficacy via multiple mechanisms of action, including: (i) enhanced antibody-mediated effector function resulting from the increased decoration of the tumor cell surface; (ii) increased blockade of the HER2 cellular growth signal by the dual engagement of HER2 epitopes; and (iii) increased removal of surface-expressed HER2 protein due to enhanced HER2 internalization upon antibody engagement. ZW25 as a best-in-class HER2-targeting antibody for a variety of tumors characterized by HER2 overexpression, including breast, gastric, ovarian, colorectal and non-small cell lung cancers.