Pionyr Immunotherapeutics Completes $62 million Series B Financing to Advance Antibody-Based Therapeutics Targeting the Tumor Microenvironment

On December 13, 2017 Pionyr Immunotherapeutics, Inc., a company developing antibody therapeutics that increase the body’s antitumor immunity by rebalancing the myeloid infiltrate in the tumor microenvironment, reported the closing of a $62 million Series B investment round. This brings total funding since the company’s founding in 2015 to $72 million. The Series B financing was led by New Enterprise Associates and included Sofinnova Ventures and Vida Ventures, along with Pionyr’s existing investors, OrbiMed, SV Health Investors, Osage University Partners, and Mission Bay Ventures.

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Research conducted at Pionyr over the past year shows that its most advanced technology, Myeloid Tuning, is capable of rebalancing the tumor microenvironment to favor immune-activating myeloid cells over immune-suppressing myeloid cells. This activity is believed to enhance antitumor efficacy, particularly in combination with checkpoint inhibition. The proportions of specific subpopulations of myeloid cells in the tumor microenvironment have been shown to correlate with clinical outcome and predict checkpoint inhibitor responsiveness.

"Our technology has led to a promising pipeline of potential new therapeutics against novel and highly specific targets in the tumor microenvironment," Max Krummel, Ph.D., UC San Francisco professor, Pionyr co-founder and member of the board of directors said. "We believe these drug candidates hold the keys to an untapped area of immuno-oncology and may have a significant impact on multiple cancers."

Dr. Krummel has been a pioneer in immuno-oncology since the mid-1990s and is the co-inventor of YERVOY (ipilimumab), the first marketed checkpoint inhibitor, which was approved in 2011 to treat melanoma.

Pionyr was co-founded by Dr. Krummel and Sachdev Sidhu, Ph.D., a protein engineer and key player in early antibody phage-display technology platforms, formerly at Genentech, who is now head of protein engineering and antibody discovery at the University of Toronto.

Pionyr is led by industry veterans with deep biotech management experience and immuno-oncology expertise. Steven James, former CEO of Labrys Biologics (acquired by TEVA) and KAI Pharmaceuticals (acquired by Amgen), is the president and CEO of the company. The company’s senior vice president of research is Michel Streuli, Ph.D., who has over 15 years of pharma and biotech experience, and previously led immuno-oncology efforts at Gilead, Merck (as early development head for KEYTRUDA), Schering-Plough, and Organon.

"Pionyr has made great progress over the past year and we are extremely gratified that this has led to a financing sufficient in size to take two of our antibodies into human cancer trials," James said. "NEA, Sofinnova Ventures, and Vida Ventures are superb additions to our existing syndicate of top flight investors, and have been tremendously supportive of our efforts to push forward with multiple programs emerging from our pipeline."

Joining Prof. Krummel, Mr. James, Leon Chen, Ph.D. (OrbiMed Advisors), and Joshua Resnick, M.D. (SV Health Investors) on the Pionyr board of directors are Carol Gallagher, Pharm.D. (NEA), Mike Powell, Ph.D. (Sofinnova) and Arjun Goyal, M.D. (Vida Ventures) as an observer.

Dr. Carol Gallagher commented, "We are impressed with the rapid translation work the Pionyr team has conducted and look forward to working with them to enable these novel drug candidates to advance toward the clinic to evaluate the promise of this novel approach in immuno-oncology."

Regeneron Collaboration Programs Highlighted During Sanofi Analyst Day

On December 13, 2017 Regeneron Pharmaceuticals, Inc. (NASDAQ: REGN) reported updates related to its collaboration programs with Sanofi, which were highlighted during Sanofi’s Sustaining Innovation Analyst Day in Paris, France (Press release, Regeneron, DEC 13, 2017, View Source [SID1234522610]).

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In a separate release today the companies also shared positive topline results for PD-1 antibody cemiplimab in advanced cutaneous squamous cell carcinoma (CSCC).

Immunology and Inflammation: Dupixent (dupilumab) and IL-33 antibody

A supplemental Biologics License Application (sBLA) for dupilumab in persistent, uncontrolled asthma is expected to be submitted in the fourth quarter of 2017.
In 2018, a Dupixent (dupilumab) sBLA submission is planned for atopic dermatitis in adolescents ages 12 to 17, and in 2019, a second sBLA is planned for children ages 6 to 12.
In 2019, an sBLA is planned for dupilumab in adults with nasal polyposis.
Pivotal Phase 3 studies are planned for 2018 evaluating the use of dupilumab in chronic obstructive pulmonary disease (COPD), a condition for which there are no approved biologic therapies.
A pivotal Phase 3 study is planned for 2018 evaluating the use of dupilumab in eosinophilic esophagitis (EoE), a condition for which there are no approved therapies in the U.S.
Phase 2 studies investigating the use of dupilumab as an adjunctive therapy to immunotherapies for the treatment of peanut and grass allergy are planned for 2018.
Dupilumab studies are planned for 2018 to evaluate patients with comorbid allergic inflammatory conditions.
REGN3500, an antibody to IL-33, is currently being investigated in Phase 1b studies in adult patients with moderate asthma and mild allergic asthma both as monotherapy and in combination with dupilumab.
In 2018, the companies plan to initiate Phase 2 proof-of-concept studies for REGN3500 in asthma and COPD, and a Phase 2b study in atopic dermatitis.
Immunology and Inflammation: Kevzara (sarilumab)

Phase 3 studies of sarilumab in giant cell arteritis and polymyalgia rheumatica are expected to be initiated in 2018.
A Phase 2 study of sarilumab in systemic juvenile arthritis is also expected to begin in 2018.
Immuno-Oncology

In the first quarter of 2018, the companies plan to submit a BLA to the FDA for cemiplimab (REGN2810, PD-1 antibody) for the lead indication of locally advanced and unresectable or metastatic CSCC.
Further development plans for cemiplimab include ongoing studies in basal cell carcinoma and cervical cancer.
Three Phase 3 studies are either planned or underway in first-line non-small cell lung cancer (NSCLC):
Cemiplimab vs. platinum doublet in patients with PD-L1 expression greater than or equal to 50 percent (ongoing).
Cemiplimab in combination with ipilimumab or chemotherapy vs. platinum doublet in patients with PD-L1 expression less than 50 percent (initiated).
Cemiplimab in combination with ipilimumab or chemotherapy in patients with PD-L1 expression greater than or equal to 50 percent (planned).
A second-line study of cemiplimab in NSCLC is also planned.
Regeneron is also advancing REGN3767, a LAG3 antibody, for cancer both as monotherapy and in combination with cemiplimab, as well as other preclinical immuno-oncology bispecific and monoclonal antibody therapies.
Cardiovascular Disease: Praluent (alirocumab)

Data from the ODYSSEY OUTCOMES trial evaluating PRALUENT (alirocumab) are expected in the first quarter of 2018.
The median duration of treatment in the ODYSSEY OUTCOMES study is 33 months, with some patients treated for up to five years.
Based on data from ODYSSEY OUTCOMES, the companies anticipate submitting an sBLA to the FDA by the third quarter of 2018. (Press release, Regeneron, DEC 13, 2017, View Source [SID1234522610])

ImmunoCellular Therapeutics Achieves Key Milestone in Stem-to-T-Cell Research Immuno-Oncology Program

On December 13, 2017 ImmunoCellular Therapeutics, Ltd. ("ImmunoCellular" or the Company) (NYSE American: IMUC) reported that it has achieved a key milestone in its research-stage Stem-to-T-Cell immuno-oncology program (Press release, ImmunoCellular Therapeutics, DEC 13, 2017, View Source [SID1234522639]). The milestone represents an important step toward stimulating the patient’s immune system to produce an unlimited supply of killer T cells that specifically target and destroy tumor cells with minimal side effects. This approach could be effective in treating many types of cancers.

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The research team at ImmunoCellular successfully packaged a T cell receptor (TCR) DNA sequence into a lentiviral vector, which was then used to transfect human hematopoietic stem cells. The Company has been able to verify successful transfer of genetic material into the stem cells, and plans to continue to work toward optimizing the transfection process. The Company believes that this completed phase of the Stem-to-T-Cell development is an important component of the proof-of-concept work for this technology, and represents a critical step in advancing toward preclinical testing.

"We are excited to have achieved this critical initial milestone in our Stem-to-T-Cell program, and to have generated a body of scientific evidence of successful transfection and proof that the transfected human hematopoietic stem cells bearing the TCR were able to grow robustly for several generations," said Steven J. Swanson, PhD, Senior Vice President, Research. "We and our collaborators are on schedule to undertake next anticipated steps designed to enhance the transfection process and advance toward preclinical testing. We remain committed to our vision to develop solutions for intractable cancers, extending the lives of cancer patients, and providing hope for a potential cure. We believe that our Stem-to-T-Cell program is potentially a game-changing treatment for cancer."

Anthony J. Gringeri, PhD, President and Chief Executive Officer commented: "We are proud of the achievements of our research team and the important scientific validation of our Stem-to-T-Cell program generated to date. We believe that our stem cell technology represents a major step forward in immuno-oncology, and has the potential for meaningful advantages over other novel immuno-oncology technologies, including use in combination approaches. With our strengthened financial condition and cash reserves, we intend to continue to focus our resources on achieving additional research milestones over the next 18 months. We are also continuing to explore potential collaborations for our clinical programs and other strategic alternatives for our Company."

About ImmunoCellular’s Stem-to-T-Cell Program

Based on the technology in-licensed from The California Institute of Technology in 2014 ImmunoCellular’s Stem-to-T-Cell program is designed to harness the power of the immune system in highly directed and specific ways to engineer highly antigen-specific tumor killing. At the core of the Stem-to-T-Cell technology is harvesting stem cells from cancer patients and then cloning into them T cell receptors that are specific for cancer cells. These engineered stem cells can then be reintroduced into the patient and are pre-programed to produce daughter cells that are antigen specific killer T cells that are capable of identifying, binding to, and killing cancer cells. Because stem cells are immortal, these reengineered stem cells could provide a natural and perpetual source of T cells that can target and destroy cancer cells in the patient.

The Stem-to-T-Cell platform has the potential to address many types of cancer, including both solid and hematological tumors and has the potential to result in a potentially curative therapy for many different types of cancers. The stem cell platform represents a novel and more direct approach to generating killer T cells by using the patient’s stem cells as starting material. Thus, ImmunoCellular’s Stem-to-T-Cell technology shares some similarities with other immuno-oncology technologies, such as CAR-T, and could potentially be used in combination approaches. Unlike CAR-T therapies which deliver a large bolus of active T cells into the patient’s circulation and have been associated with toxicity in some patients, ImmunoCellular’s approach enables a more gradual and measured release of killer T cells and has the potential for lower toxicity while also yielding a more sustained response.

Sanofi presents R&D strategy and innovative pipeline 

On December 13, 2017 Sanofi reported that it will host an analyst meeting in Paris today to discuss the company’s Research and Development strategy, development pipeline and milestones for 2018 (Press release, Sanofi, DEC 13, 2017, View Source [SID1234522611]). The company will highlight the progress it has made against "Sustaining Innovation", a key pillar of its 2020 strategic roadmap, and advancing a differentiated portfolio addressing unmet needs.

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The company’s pipeline spans 71 R&D projects, which includes 37 new molecular entities and novel vaccines. At least 10 pivotal phase 3 studies are expected to start over the next 12 months and will evaluate new treatments for:
chronic obstructive pulmonary disease and eosinophilic esophagitis (dupilumab[1]);
autosomal dominant polycystic kidney disease (ADPKD), a rare kidney disease (venglustat);
type 2 diabetes (efpeglenatide, a once-weekly GLP-1 agonist);
obesity (a GLP-1/GCG dual agonist);
primary progressive multiple sclerosis (alemtuzumab), and;
first line NSCLC[2] (cemiplimab).

Regulatory filings expected in the next 12 months include two investigational cancer drugs (cemiplimab and isatuximab), a novel therapy for type 1 diabetes (sotagliflozin) and a potential treatment for uncontrolled, persistent asthma (dupilumab).

"We have seen significant advancement on our ambition to sustain innovation in R&D, with the development of leading technology platforms and proof of concept demonstrated in multiple high-potential projects in late stage trials. We are confident this portfolio will be the foundation for Sanofi’s future long-term growth," said Olivier Brandicourt, MD, Chief Executive Officer at Sanofi.

As a key pillar of the 2020 Roadmap, the new Sanofi R&D model is based on three key strategic shifts:
From small molecules to biologics;
From mono-targeting to multi-targeting compounds; and
From licensing to proprietary assets.

The company has continuously adapted its R&D model in recent years to deliver greater efficiency and excellence in development, resulting in a major uplift in productivity. Since 2016, consistent with the three key strategic shifts outlined above, Sanofi has placed increasing emphasis on developing proprietary technology platforms, including multi-specific antibodies (bi- & tri-specific), siRNA, trigonal peptides, dual and triple agonists, and PRR-Antibody conjugates. It has also leveraged external expertise in targeted platforms such as mRNA mixtures and Nanobodies.

"We aim to advance multi-targeting therapeutic approaches for core disease pathways that have the potential to attack more than one disease at a time or bring improved risk benefit in the treatment of a single disease," said Elias Zerhouni, MD, Global Head of R&D at Sanofi. "2018 will be an important year as we expect multiple milestones for Sanofi’s late-stage pipeline, made possible through the prioritization principles we have consistently applied to our early-stage research programs."

Building a competitive position in Specialty Care

Immunology

Sanofi is strengthening its specialty care portfolio and has executed launches in its fast-growing immunology franchise. Dupilumab, which we are developing in collaboration with Regeneron, has potential across multiple indications. Phase 3 trials for uncontrolled, persistent asthma recently demonstrated a potentially clinically important profile among biologic treatments. Submission in this important indication is expected before the end of 2017. Clinical development is underway in nasal polyposis, eosinophilic esophagitis, food allergies and in pediatric populations in most of these indications. Additionally, phase 3 development for dupilumab is now planned in chronic obstructive pulmonary disease (COPD). Sanofi, in collaboration with Regeneron, also expects to bring SAR440340, an anti-IL-33 antibody, which has the potential for a broader spectrum of immune modulation, into phase 2 in atopic dermatitis, asthma and COPD in 2018, alone or in combination with dupilumab.

Oncology

Sanofi is committed to re-building its position in oncology and has made major progress in the past two years. This strategy is starting to deliver and we anticipate 14 new proof-of-concept studies to be initiated, four potential proof-of-concept readouts, six phase one starts and three BLA/ MAA submissions in 2018. Cemiplimab is an investigational PD-1 checkpoint inhibitor and the backbone of our checkpoint immuno-oncology strategy with our partner Regeneron. It is being studied in cutaneous squamous cell carcinoma (CSCC), for which it was granted "Breakthrough Therapy" designation by the U.S. Food and Drug Administration (FDA), with an expected regulatory submission in Q1 2018. The development program also includes large or untapped opportunities in immuno-oncology, such as basal cell carcinoma, cervical cancer, and first line lung cancer.

Isatuximab is a Sanofi investigational antiCD38 monoclonal antibody with a first regulatory submission expected in 2018 for relapsed refractory multiple myeloma (RRMM). Beyond multiple myeloma, and building on the emerging evidence that CD38 inhibition may reverse resistance to PD-L1, isatuximab will be studied in combination with cemiplimab or other immuno-oncology agents. Sanofi will also present early research programs for its Selective Estrogen Receptor Degrader (SERD) and TGF-beta program to overcome PD-1 resistance.

Multiple Sclerosis

In multiple sclerosis (MS), Sanofi plans to build on the proven long-term clinical profile of Lemtrada (alemtuzumab) by initiating a Phase 3 study in 2018 for alemtuzumab in patients with primary progressive multiple sclerosis (PPMS). Consistent with Sanofi’s rigorous prioritization methodology, the company will deprioritize GLD-52 in this indication in favor of alemtuzumab. In addition, Sanofi, in collaboration with Principia, will be developing a novel Bruton’s tyrosine kinase (BTK) inhibitor, designed to access the brain and spinal cord by crossing the blood-brain barrier and impact immune cell and brain cell signaling. It is currently being studied in MS with potential applications in other central nervous system diseases[3].

Sustaining leadership in Rare Disease, Diabetes & Cardiovascular and Vaccines
Rare Disease

Sanofi’s Rare Disease pipeline is structured with the goal of sustaining innovation in lysosomal storage disorders, while also expanding strategically into related conditions. Clinical development programs include venglustat, an oral inhibitor of glucosylceramide synthase, in Fabry Disease, Gaucher Disease Type 3, GBA Parkinson’s Disease and autosomal dominant polycystic kidney disease (ADKPD). Late-stage/pivotal programs include olipudase, a first-in-class enzyme replacement therapy (ERT) for the non-neurological manifestations of acid sphingomyelinase deficiency (ASMD), and avalglucosidase alfa, a novel ERT for Pompe disease. Finally, through a strategic collaboration with Alnylam, we are advancing the development of patisiran for hATTR[4] amyloidosis and fitusiran for hemophilia A and B, with and without inhibitors.

Diabetes & Cardiovascular

Sanofi is committed to sustaining a leadership position in diabetes and expanding into adjacent co-morbidities. Its late-stage diabetes pipeline includes sotagliflozin, an investigational SGLT-1/2 inhibitor being developed in collaboration with Lexicon, and efpeglenatide, a once-weekly GLP-1 being developed in collaboration with Hanmi, both of which potentially offer unique patient advantages. Additionally, Sanofi is leveraging its novel peptide incretin platform to develop breakthrough assets for diabetes, obesity and non-alcoholic steatohepatitis (NASH). The lead compound is a dual agonist of GLP-1/GCG which has shown highly competitive weight loss in the clinic and is expected to enter phase 3 in obesity in 2018. A phase 2 study in NASH is also due to start in 2018.
In cardiovascular, Sanofi continues to work in collaboration with Myokardia on therapeutic options for genetic forms of cardiomyopathy. The lead compound is mavacamten, an oral modulator of cardiac myosin, which is in phase 2 for HCM[5] and is expected to start a registrational phase 2b/3 study in 2018.
Vaccines

Sanofi has six key vaccine projects currently in development, and priority disease areas include influenza, meningitis and respiratory syncytial virus (RSV). RSV is the leading cause of infant viral mortality and represents a new potential category for Sanofi. The company is taking a complementary dual approach to RSV with a monoclonal antibody in phase 2, in collaboration with MedImmune, and a vaccine in phase 1.

Webcast details

The event will be webcast live on Sanofi’s website at 8:30 am CET/2:30 am EST. The webcast details and full presentation will be made available on Sanofi’s Investor Relations webpage and an Appendix compiling all Sanofi studies registered on clinicaltrials.gov will also be published.
[1] Partnered products: cemiplimab, dupilumab, anti-IL33 mAb (Regeneron); sotagliflozin (Lexicon); efpeglenatide (Hanmi); fitusiran, patisiran (Alnylam); mavacamten, MYK-491 (Myokardia).
[2] Non-Small Cell Lung Cancer
[3] The Principia transaction remains subject to customary regulatory approvals and has not yet closed.
[4] hATTR = Hereditary Transthyretin-Mediated Amyloidosis
[5] HCM= Hypertrophic cardiomyopathy

PRINCIPIA BIOPHARMA INITIATES CLINICAL TRIAL FOR PRN1008 IN PATIENTS WITH IMMUNE THROMBOCYTOPENIA PURPURA

On December 13, 2017 Principia Biopharma, a private, clinical-stage biopharmaceutical company, reported that it has initiated a clinical trial for PRN1008, a reversible covalent Bruton’s Tyrosine Kinase (BTK) inhibitor, in patients with Immune Thrombocytopenia Purpura (ITP) in the US. ITP, an autoimmune disorder characterized by thrombocytopenia – a decreased number of circulating platelets – is the second indication for which Principia is evaluating PRN1008 (Press release, Principia Biopharma, DEC 13, 2017, View Source [SID1234522663]). Principia also has an on-going clinical program for PRN1008 in patients with pemphigus, another autoimmune disease, where it has seen a promising efficacy and safety profile to date.

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Supporting advancement into clinical trials, the company recently presented preclinical data at the 59th American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting & Exposition in Atlanta (abstract #1052). The results from the studies showed that PRN1008 did not adversely affect platelet aggregation in blood from both healthy volunteers and ITP patients. Additionally, results in an animal model of ITP showed that animals treated with PRN1008 had significantly higher platelet counts than control animals (p<0.05).

"These preclinical results are encouraging and provide strong evidence that PRN1008, an oral, BTK inhibitor, inhibits antibody-mediated thrombocytopenia, supporting its study in ITP patients," said Steve Gourlay, MBBS, Ph.D., chief medical officer of Principia Biopharma. "New treatments and modalities are needed for patients with relapsed ITP that are effective in the majority of patients, with fewer toxicities and easier administration than current treatments. Based on these promising early findings, we have initiated the first human clinical trial of PRN1008 in patients with ITP."

Preclinical study design and results
The effect of PRN1008 on platelet function was evaluated in-vitro in the blood from both normal healthy volunteers and patients with ITP. Results showed that treatment with PRN1008 at therapeutically relevant concentrations had no effect on platelet aggregation in either healthy volunteers or ITP patients, and did not interfere with responses to all other platelet agonists tested. In contrast, ibrutinib, a United States Food and Drug Administration-approved BTK inhibitor, had a significant effect on platelet aggregation in healthy volunteers, consistent with published literature.

Additionally, the pharmacologic effect of PRN1008 was evaluated in an animal model of ITP. Animals given three different doses of PRN1008 were challenged with platelet-targeting antibodies, and blood platelet counts were measured. PRN1008 demonstrated significant dose-dependent prevention of platelet loss at six hours compared with the control animals (p<0.05).

About PRN1008
PRN1008 is an oral, reversible covalent BTK inhibitor (Bruton’s Tyrosine Kinase – a component of B-cell signaling and inflammatory pathways in most white blood cell types other than T-cells and plasma cells). It was designed using Principia’s proprietary Tailored Covalency technology to optimize its safety and efficacy profile, resulting in a prolonged and reversible action at the target site while being rapidly eliminated from the body. This approach limits systemic exposure of PRN1008 and enables rapid clinical reversibility of effects on the immune system.

About Immune Thrombocytopenia Purpura
ITP is a chronic autoimmune disease characterized by a decreased number of circulating platelets, which play a key role in clot formation. The disorder affects approximately 70,000 adults in the United States and over 200,000 in the European Union. The typical age of onset of chronic ITP is 40 to 60 years. Individuals with ITP have a tendency to bleed and easily bruise due to blood leaking from capillaries into the skin and mucous membranes. They also suffer from fatigue, diminished quality of life and the risk of mortality (including intracranial hemorrhage).

Approved therapies in the United States for ITP include corticosteroids, intravenous immunoglobulin (IVIg) and splenectomy (surgical removal of the spleen) to stop platelet depletion, and TPO receptor agonists to increase platelet production. There is no cure for ITP and most patients relapse.

About BTK inhibition in autoimmune disease
Bruton’s Tyrosine Kinase (BTK) is a protein important to the proper function of the immune system. BTK is a key part of the signaling pathway downstream of the B-cell and Fcγ receptors on most types of white blood cells except T-cells and plasma cells. Inhibition of BTK results in the down-regulation of various cellular activities that are activated in autoimmune and inflammatory diseases.