On June 26, 2017 Advaxis, Inc. (NASDAQ:ADXS), a late-stage biotechnology company developing cancer immunotherapies, reported that the European Society of Gynaecologic Oncology (ESGO) has accepted an abstract for a poster presentation at its 2017 congress on the identification of potential baseline biomarkers indicative of survival benefit from treatment with the company’s lead immunotherapy candidate, axalimogene filolisbac (Press release, Advaxis, JUN 26, 2017, View Source [SID1234519687]). ESGO is Europe’s landmark gynecologic oncology meeting. Held biennially, ESGO congress brings together professionals to learn and discuss the latest medical and scientific developments in gynecologic cancers research, treatment and care.

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Advaxis researchers identified certain pre-treatment baseline levels of serum proteins that were strongly associated with overall survival (OS) benefit in patients with persistent or recurrent metastatic carcinoma of the cervix (PRmCC) that were treated with axalimogene filolisbac in the Phase 2 GOG/NRG-0265 study. The 12-month survival rate in this study was 38 percent (19/50), and these results were presented at a medical meeting earlier this year.

This analysis of pre-treatment baseline serum proteins of 45 patients from the study showed that levels of a group of four closely-aligned proteins were strongly correlated with OS. One cluster of patients (n=25), had relatively lower levels of all four proteins and exhibited an OS of 56 percent, while the second cluster (n=20), with relatively higher levels, exhibited an OS of 15 percent. These data are statistically significant (HR=0.23; 95% CI: 0.10-0.48; P<.001) and suggest that the baseline levels of these analytes have prognostic value for OS, and high levels of these individual proteins were negatively associated with clinical outcomes in the trial.

Importantly, it was found that much of this effect was due to levels of one particular protein, which was found to be most highly correlated with OS in the study. This particular protein was previously not known to be associated with survival in cervical cancer. Advaxis will continue to evaluate this particular protein as a potential biomarker to help identify patients most likely to benefit from treatment with axalimogene filolisbac.

"In the field of cancer immunotherapy, biomarkers have been playing an increasing role in guiding patient selection and identifying early indicators of treatment response," said Robert Petit, Chief Scientific Officer of Advaxis. "The discovery of this potential biomarker, which previously has not been known to be associated with survival in cervical cancer, is significant and could be a biomarker to predict efficacy, similar to how PD-L1 expression is used as a biomarker for checkpoint inhibitors. PD-L1 testing has become an important and routine strategy to guide treatment, and this biomarker has the promise to do the same for axalimogene filolisbac."

Sandy Hayes, PhD, Associate Director of Research and Biomarker Lead at Advaxis, is the first author and presenter of "Baseline Serum Protein Levels Associated with Survival in Axalimogene Filolisbac (Axal)-Treated Metastatic Cervical Cancer Patients: The GOG/NRG-0265 Trial." The poster will be presented at ESGO 2017, held Nov. 4 to 7 in Vienna, Austria, and will also be published in a supplement to the International Journal of Gynecological Cancer.

About Cervical Cancer

Cervical cancer is the fourth most common cancer affecting women worldwide. An estimated 13,000 cases were diagnosed in the United States in 2016, and 4,100 women will have this disease as their cause of death each year, according to the National Cancer Institute. Decades of research have shown that persistent HPV infection, particularly with high-risk virus types such as HPV-16 and HPV-18, is the most important factor in the development of cervical cancer. The prognosis for women with advanced and recurrent cervical cancer remains poor, with median survival of only six to seven months following initiation of palliative treatment with chemotherapy. According to the American Cancer Society, the five-year survival rate for stage IV disease is at 15 to 16 percent. There is no approved therapy following failure of first-line treatment, and there has been limited advancement in developing new therapeutics for advanced cervical cancer over the last 30 years.

About Axalimogene Filolisbac

Axalimogene filolisbac is a targeted Listeria monocytogenes (Lm)-based immunotherapy that attacks HPV-associated cancers by altering a live strain of Lm bacteria to generate cancer-fighting T cells against cancer while neutralizing the tumor’s natural protections that guard the tumor microenvironment from immunologic attack.

Axalimogene filolisbac has received Fast Track designation as an adjuvant therapy for high-risk locally advanced cervical cancer (HRLACC) patients and a Special Protocol Assessment for the Phase 3 AIM2CERV trial in HRLACC patients. Axalimogene filolisbac is the only active product candidate to have received the U.S. FDA orphan drug designation in cervical cancer.

Advaxis, in collaboration with Bristol-Myers Squibb, is evaluating ADXS-DUAL, the next generation immunotherapy candidate targeting HPV-associated cancers, with the PD-1 immune checkpoint inhibitor, Opdivo (nivolumab), as a potential combination treatment option for women with metastatic cervical cancer. Expected to start by the end of 2017, the study will evaluate this combination regimen in women with PRmCC who have failed at least one prior line of systemic chemotherapy.

On June 25, 2017 AOP Orphan Pharmaceuticals AG (AOP Orphan) and PharmaEssentia Corporation (Taipei Exchange: 6446) announced latest results from 3 clinical studies on Ropeginterferon alfa-2b for patients with Polycythemia Vera (PV) presented at EHA (Free EHA Whitepaper) 2017 (Press release, AOP Orphan Pharmaceuticals, JUN 25, 2017, View Source [SID1234519690]).

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Ropeginterferon alfa-2b is a novel, long-acting, mono-pegylated proline interferon expected to be the first interferon approved for PV worldwide. It is currently under EMA review for marketing authorization in the EU by AOP Orphan, PharmaEssentia intends to seek its approval by the FDA in the U.S.

Abstract EHA (Free EHA Whitepaper)-3520: An update from the PEGINVERA study (NCT: 2010-018768-18) on long-term maintenance treatment of up to 6 years (median of 4 years) with Ropeginterferon alfa-2b was provided. Patients were successfully switched from the once every 2 weeks to the more convenient once every 4 weeks’ long-term maintenance dosing schedule after a median of approximately 2 years.

All 29 patients could be maintained on this schedule for another 2 years, representing 100% treatment adherence. The high rates of hematological (over 80% of the patients achieved partial or complete hematologic response) and molecular responses (up to 80% of the patients achieved partial or complete molecular response) were maintained after the switch to the 4 weeks’ schedule and remain stable (trial still ongoing).

After 4 years on Ropeginterferon alfa-2b, the majority of patients showed a sustained reduction of the mutant JAK2V617F allelic burden to below 10%, demonstrating the disease modifying capability of Ropeginterferon alfa-2b treatment.

No disease progression was reported.

Abstract EHA (Free EHA Whitepaper)-3556: To alleviate the known burden of frequent health care office visits for product administration, home self-administration and patient individual dosing of Ropeginterferon alfa-2b were performed in the PEN-PV study (NCT: 2014-001356-31).

Based on investigator assessments, none of the 36 patients exhibited any visible pain or physical discomfort, nor did any patient report pain arising from the use of the pen. The Ropeginterferon alfa-2b pen was well accepted by patients and health care professionals, hematological parameters and spleen size remained stable throughout the study and there were no safety concerns.

The pen allows for individual dosing and patient-convenient self-administration at home. It is expected to support adherence to Ropeginterferon alfa-2b in the long-term treatment of PV-patients.

Abstract EHA (Free EHA Whitepaper)-1564: To assess the disease modifying capability of Ropeginterferon alfa-2b compared to hydroxyurea (HU), the effect of treatment on hematopoietic bone marrow progenitor cells was investigated in 10 patients of the French PROUD-PV study population (NCT01949805).

Although at 12 months, both drugs led to a decrease of the mutant JAK2V617F allelic burden in peripheral blood, only Ropeginterferon alfa-2b induced a meaningful decrease of mutated hematopoietic bone marrow progenitor cells (median decrease 64% compared to only 25% under HU).

Professor Jean-Jacques Kiladjian from the Saint-Louis Hospital & Paris Diderot University in France, who presented the results on molecular responses of Ropeginterferon alfa-2b on hematopoietic progenitor cells at EHA (Free EHA Whitepaper), stated "Results from this study further support the potential for long-term patient benefits, including progression-free survival and underscore the unique disease modification capabilities of Ropeginterferon alfa-2b."

About Ropeginterferon alfa-2b

Ropeginterferon alfa-2b is a novel, long-acting, mono-pegylated proline interferon with improved pharmacokinetic properties offering improved tolerability and convenience. Ropeginterferon alfa-2b was discovered by PharmaEssentia. Ropeginterferon alfa-2b has Orphan Drug designation in the European Union and the United States of America. PharmaEssentia plans to commercialize ropeginterferon alfa-2b in North and South America, as well as Asia. PharmaEssentia has exclusively licensed the rights for Ropeginterferon alfa-2b to AOP Orphan for European, Commonwealth of Independent States (CIS), and Middle Eastern markets for the development and commercialization in the field of Myeloproliferative Neoplasms (MPNs).

About Polycythemia Vera

Polycythemia Vera (PV) is a cancer of the blood-building cells in the bone marrow resulting in a chronic increase of red blood cells, white blood cells and platelets. This condition may result in circulatory disorders such as thrombosis and embolism, as well as malignant transformation to myelofibrosis or leukemia.

On June 23, 2017 Roche (SIX: RO, ROG; OTCQX: RHHBY) reported that the US Food and Drug Administration (FDA) approved Rituxan Hycela (rituximab and hyaluronidase human) for subcutaneous (under the skin) injection, for the treatment of adults with the following blood cancers: previously untreated and relapsed or refractory follicular lymphoma, previously untreated diffuse large B-cell lymphoma (DLBCL), and previously untreated and previously treated chronic lymphocytic leukaemia (CLL) (Press release, Hoffmann-La Roche, JUN 23, 2017, View Source [SID1234519669]). This new treatment includes the same monoclonal antibody as intravenous Rituxan (rituximab) in combination with hyaluronidase human, an enzyme that helps to deliver rituximab under the skin.

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"With today’s approval of Rituxan Hycela, people with three of the most common blood cancers now have a new treatment option which provides efficacy comparable with intravenous Rituxan and can be delivered under the skin in minutes instead of hours through IV infusion," said Sandra Horning, MD, Roche’s Chief Medical Officer and Head of Global Product Development. "People who benefit from Rituxan may receive years of repeated treatments for their blood cancer, so an option that reduces the administration time can be important."

The FDA approval is based on results from clinical studies, which demonstrated that subcutaneous administration of Rituxan Hycela resulted in non-inferior levels of rituximab in the blood (pharmacokinetics) and comparable clinical efficacy outcomes compared to intravenous Rituxan. One of the studies showed the majority (77%) of patients preferred Rituxan Hycela over intravenous Rituxan, with the most common reason being that administration required less time in the clinic. People can only receive Rituxan Hycela after at least one full dose of intravenous Rituxan.

With the exception of local skin (cutaneous) reactions, the incidence and profile of adverse reactions for Rituxan Hycela were comparable with those for intravenous Rituxan. The most common (≥20%) adverse reactions observed with Rituxan Hycela in people with follicular lymphoma were infections, low white blood cell count (neutropenia), nausea, constipation, cough and fatigue. The most common adverse reactions in people with DLBCL were infections, neutropenia, hair loss (alopecia), nausea and low red blood cell count (anemia). The most common adverse reactions in people with CLL were infections, neutropenia, nausea, low platelet count (thrombocytopenia), fever (pyrexia), vomiting and reddening of the skin (erythema) at the injection site.

Rituxan Hycela will be available to people in the United States within one to two weeks, and intravenous Rituxan will continue to be available.

About the Rituxan Hycela Clinical Development Program
The approval of Rituxan Hycela is based on results from clinical studies that together represented nearly 2,000 people. The studies were the following:
SABRINA (NCT01200758): Phase III combination with chemotherapy and maintenance study in previously untreated follicular lymphoma

SAWYER (NCT01292603): Phase Ib study in previously untreated chronic lymphocytic leukaemia (CLL)
MabEase (NCT01649856): Phase III study in previously untreated diffuse large B-cell lymphoma (DLBCL)
PrefMab (NCT01724021): Phase III patient preference study in previously untreated follicular lymphoma and DLBCL

About MabThera/Rituxan (rituximab)
MabThera/Rituxan is a therapeutic monoclonal antibody that binds to a particular protein – the CD20 antigen – on the surface of normal and malignant B-cells. It then recruits the body’s natural defenses to attack and kill the marked B-cells. Stem cells (B-cell progenitors) in bone marrow lack the CD20 antigen, allowing healthy B-cells to regenerate after treatment and return to normal levels within several months.

Rituxan first received FDA approval for the treatment of relapsed indolent non-Hodgkin Lymphoma (NHL) in 1997 and was the first targeted cancer medicine approved by the U.S. Food and Drug Administration (FDA). MabThera was approved in the EU in June 1998, and has since been used to treat more than 2.7 million people with specific blood cancers. For more than 15 years, the efficacy and safety of MabThera/Rituxan has been documented in more than 300 phase II/III clinical studies. MabThera/Rituxan has been approved for the treatment of several blood cancers, specifically, certain types of NHL and for chronic lymphocytic leukaemia (CLL). It continues to be studied in other types of blood cancers and disease areas where CD20-positive cells are believed to play a role.

MabThera is known as Rituxan in the United States, Japan and Canada. Genentech, a member of the Roche Group, and Biogen collaborate on Rituxan in the United States, and Roche markets MabThera in the rest of the world, except Japan, where MabThera is co-marketed by Chugai and Zenyaku Kogyo Co. Ltd.

About Rituxan Hycela
Rituxan Hycela is a co-formulation of the same monoclonal antibody as intravenous MabThera/Rituxan and Halozyme Therapeutics’ proprietary hyaluronidase human, an FDA-approved enzyme that facilitates the delivery of a large volume of medicine under the skin. Rituxan Hycela can be administered in five to seven minutes, compared to 1.5 to four hours for intravenous MabThera/Rituxan. It is known as the subcutaneous (SC) formulation of MabThera (rituximab) in the European Union.

About Follicular Lymphoma
Follicular lymphoma is the most common indolent (slow-growing) form of non-Hodgkin lymphoma (NHL), accounting for about one in five cases of NHL1. It is considered incurable and relapse is common. Every day, more than 50 people in Europe are diagnosed this type of NHL2. It is estimated that each year, more than 75,000 people are diagnosed with follicular lymphoma worldwide2.

About Diffuse Large B-Cell Lymphoma (DLBCL)
Diffuse large B-cell lymphoma (DLBCL) is the most common subtype of non-Hodgkin lymphoma (NHL), accounting for about one in three cases of NHL3. DLBCL is an aggressive (fast-growing) type of NHL, which is generally responsive to treatment in the frontline4. However, as many as 40% of patients will relapse, at which time salvage therapy options are limited and survival is short4. Approximately 123,000 people worldwide are estimated to be diagnosed with DLBCL each year5.

About Chronic Lymphocytic Leukaemia (CLL)
Chronic lymphocytic leukaemia (CLL) is the most common type of leukaemia in the Western world6. CLL mainly affects men and the median age at diagnosis is about 70 years7. Worldwide, the incidence of all leukaemias is estimated to be over 350,0006 and CLL is estimated to affect around one-third of all people newly diagnosed with leukaemia8.

On June 22, 2017 Repare Therapeutics Inc. reported a US$68 million Series A financing to advance its platform and pipeline of novel medicines that target genetically defined weaknesses of cancers. Founding investor Versant Ventures co-led the round with MPM Capital (Press release, Repare Therapeutics, JUN 22, 2017, View Source [SID1234520721]). They were also joined by other syndicate investors including Fonds de solidarité FTQ, Celgene Switzerland LLC, an affiliate of Celgene Corporation, and BDC Capital’s Healthcare Venture Fund.

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With this financing, Repare emerges from Versant’s Discovery Engines after an 18-month stealth period during which the company advanced its leading CRISPR-enabled synthetic lethality drug discovery platform, identified several promising oncology targets and moved multiple programs into preclinical development. Founders Daniel Durocher, Ph.D., Agnel Sfeir, Ph.D., and Frank Sicheri, Ph.D., and their respective institutions, played instrumental roles in the company’s formation and growth in partnership with Versant.

"Versant’s commitment to and confidence in Repare’s distinct science has enabled the company to build the team, operations and initial programs away from the spotlight," said Repare CEO Lloyd M. Segal. "With the added leadership of MPM and this syndicate, we are financed to achieve our goal of testing our multiple new, precision oncology therapeutics in a clinical setting."

The core concept of synthetic lethality is that while a tumor can tolerate individual defects in its DNA, there exist combinations of defects that lead to the malignancy’s destruction. The recent approvals of several PARP inhibitors provide clear proof-of-principle for the approach of inducing synthetic lethality. Repare and its founders have developed large-scale and novel methods for discovering additional drug targets that, when inhibited, may induce synthetic lethality. New drugs directed at these targets hold promise to improve cancer treatment both as single therapies and in combination with existing drugs and treatments.

In addition to Segal, a Versant Entrepreneur-in-Residence, Repare’s seasoned management team also includes R&D Head Michael Zinda, Ph.D., who built and led AstraZeneca plc’s Oncology iMed Bioscience group in Boston; and VP of Discovery Cameron Black, Ph.D., an accomplished 18-year leader of Merck Frosst’s medicinal chemistry efforts. Repare has a 20-member team based in Montreal and Boston. To further guide this important investment both Jerel Davis, Ph.D., managing director at Versant, and Todd Foley, managing director at MPM Capital, will join Repare’s board of directors.

"The fields of synthetic lethality and DNA repair have a rich, 20-year history and are poised to deliver impactful new cancer treatments," said Davis. "We are impressed by the speed and precision with which Repare, in collaboration with its founders and scientific advisors, generated impressive insights and multiple novel targets."

Repare’s first disclosed program targets DNA-directed DNA polymerase theta (PolQ), a central component of a pathway that repairs double-strand breaks in cancer cells. NYU School of Medicine has licensed to Repare exclusive rights to drug discovery work targeting PolQ, developed by Dr. Sfeir with the support of NYU Office of Therapeutics Alliances (OTA). This unique polymerase is highly expressed in ovarian, breast and a number of other cancers. In parallel, Repare is progressing several additional programs, with an aim to put its first compound in the clinic in 2019.

"We evaluated nearly every opportunity in the synthetic lethality space and have complete conviction that Repare, its founders and its SAB members represent the leaders in the field," said Foley. "MPM is dedicated to investing in and building companies that seek to find cures for cancer and save lives and we look forward to the advancement of Repare’s programs and the development of these meaningful medicines."

Repare’s founders and scientific advisors are leaders in synthetic lethality and tumor repair machinery research. In addition to Dr. Sfeir from the Department of Cell Biology and the Skirball Institute of Biomolecular Medicine at NYU Langone Medical Center and Drs. Durocher and Sicheri from Toronto’s Lunenfeld-Tanenbaum Research Institute, Repare has assembled a world-class scientific advisory board, including:

Samuel Aparicio, Ph.D., chair of the Breast Cancer Program at BC Cancer Agency and professor of pathology and laboratory medicine at UBC, Vancouver.
Jim Carmichael, M.D. FRCP, lead of the Protein Homeostasis Thematic Center of Excellence at Celgene Corporation. He previously was U.K. regional director of medical science at AstraZeneca plc following its acquisition of KuDOS, where he was CMO and responsible for clinical development of olaparib.
Ronny Drapkin, M.D., Ph.D., director of the Penn Ovarian Cancer Research Center and director of gynecologic cancer research at the Basser Center for BRCA at the University of Pennsylvania.
Laurie Glimcher, M.D., president and CEO of the Dana-Farber Cancer Institute, Richard and Susan Smith Professor of Medicine at Harvard Medical School.
Mark Pegram, M.D., director of the breast cancer oncology program at Stanford Women’s Cancer Center and co-director of Stanford’s molecular therapeutics program.
Richard Wood, Ph.D. FRS, Grady F. Saunders Distinguished Professor in Molecular Biology at the University of Texas MD Anderson Cancer Center.

About Repare

Repare is developing new, precision oncology drugs for patients that target specific vulnerabilities of tumor cells. Its approach integrates insights from several fields of cell biology including DNA repair and synthetic lethality. Repare’s platform combines a proprietary, high-throughput, CRISPR-enabled gene editing target discovery method with high-resolution protein crystallography, computational biology and clinical informatics. The company is backed by leading global healthcare investors including founding investor Versant Ventures and MPM Capital. For additional information, please visit www.reparerx.com.

About Versant

Versant Ventures is a leading healthcare investment firm committed to helping exceptional entrepreneurs build the next generation of great healthcare companies. The firm invests across the healthcare sector and at all stages of company development, with an emphasis on the discovery and development of novel therapeutics. With $2.3 billion under management and offices in North America and Europe, Versant has built a team with deep investment, operating, and scientific expertise that enables a hands-on approach to company building. Since the firm’s founding in 1999, more than 65 Versant companies have achieved successful acquisitions or IPOs. For more information, please visit www.versantventures.com.

About MPM Capital

MPM Capital is an early‐stage life sciences venture firm founding and investing in companies that seek to cure major diseases by translating scientific innovations into positive clinical outcomes. MPM’s portfolio of companies aims to revolutionize the face of medicine across multiple areas including cancer, neuroscience, metabolic disorders, and regenerative medicine. With its experienced and dedicated team of operating executives and medical and scientific advisory board, MPM is powering novel medical breakthroughs that transform patients’ lives. MPM has more than $2.6 billion dollars in assets under management and is currently investing from two funds ─ the BV2014 and UBS Oncology Impact Fund. For further information, please visit www.mpmcapital.com.

About the Fonds de solidarité FTQ

The Fonds de solidarité FTQ is a development capital fund that channels the savings of Quebecers into investments. As at November 30, 2016, the organization had $12.2 billion in net assets, and through its current portfolio of investments has helped create and protect over 187,000 jobs. The Fonds is a partner in more than 2,600 companies and has nearly 618,000 shareholder-savers. fondsftq.com.

About BDC Capital

With more than $2 billion under management, BDC Capital is the investment arm of BDC, serving as a strategic partner to Canada’s most innovative and high potential firms. It offers a range of equity, venture capital and flexible growth and transition capital solutions to help Canadian entrepreneurs scale their businesses into global champions. To find out more, visit bdc.ca/capital.

On June 22, 2017 Idera Pharmaceuticals, Inc. (NASDAQ:IDRA), a clinical-stage biopharmaceutical company developing toll-like receptor and RNA therapeutics for patients with cancer and rare diseases, reported that the U.S. Food and Drug Administration (FDA) has granted orphan drug designation for IMO-2125, an agonist of endosomal Toll-like receptor (TLR) 9 for the treatment of melanoma Stages IIb to IV (Press release, Idera Pharmaceuticals, JUN 22, 2017, View Source;p=irol-newsArticle&ID=2282632 [SID1234519650]).

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Idera is currently conducting the Phase 2 portion of the ipilimumab combination arm of a Phase 1/2 clinical trial of intratumoral IMO-2125 in patients with anti-PD-1 refractory metastatic melanoma. The objectives of the current trial are to evaluate IMO-2125’s safety, tolerability and clinical activity. The company expects to complete enrollment of the Phase 2 multicenter trial in the second half of 2017 with overall response rate (ORR) data available in the first quarter of 2018. The company has submitted an abstract to provide an update of clinical data from the ongoing trial at the European Society of Medical Oncology (ESMO) (Free ESMO Whitepaper) Congress being held in September, in Spain.

"The Orphan Drug Designation bestowed by the FDA today, represents another important step in the development of IMO-2125," stated Joanna Horobin, M.B. Ch.B., Idera’s Chief Medical Officer. "A substantial proportion of patients with metastatic melanoma do not benefit from anti-PD-1 therapy. For these patients, with PD-1 refractory melanoma, ipilimumab offers a modest benefit with an overall response rate of 10-13%1,2. Our goal is to significantly improve on this through the combination of IMO-2125 with ipilimumab. We are increasingly encouraged with the data seen to date and look forward to providing our next clinical data update."

Idera is also enrolling a second arm in the Phase 1/2 clinical trial in patients with PD-1 refractory melanoma to study the combination of IMO-2125 and pembrolizumab which is currently in the dose escalation phase.

In addition to the above mentioned clinical trial, the company recently initiated a trial of IMO-2125 monotherapy in refractory solid tumors, including PD-1 refractory melanoma.

Orphan Drug Designation is granted by the FDA Office of Orphan Products Development to drugs intended for the treatment of a rare disease or condition that affects fewer than 200,000 people in the United States. This designation provides certain incentives, including eligibility for federal grants, research and development tax credits, waiver of PDUFA filing fees and a seven-year marketing exclusivity period, once the product is approved and as long as orphan drug designation is maintained.

The approval of an orphan drug designation request does not alter the standard regulatory requirements and processes for obtaining marketing approval of an investigational drug. Sponsors must establish safety and efficacy of a compound in the treatment of a disease through adequate and well-controlled studies.

About the Phase 1/2 trial of IMO-2125 in PD-1 Refractory Melanoma
The Phase 1/2 trial of intratumoral IMO-2125 in combination with ipilimumab or pembrolizumab is being conducted in patients who are refractory to anti-PD-1 therapy. The phase 1 portion of the trial was conducted at MD Anderson Cancer Center and the phase 2 portion of the trial is being conducted at multiple clinical sites. In the Phase 1 arms of the trial, four dose levels of IMO-2125 (4, 8, 16 and 32 mg) have been administered intratumorally in one selected lesion at weeks 1, 2, 3, 5, 8 and 11, in combination with the standard dosing regimens of ipilimumab or pembrolizumab, beginning on week 2. The Phase 2 expansion portion of the trial utilizes a Simon two-stage design. If at least 2 of the first 10 patients treated at the Phase 2 dose experience confirmed response the futility hurdle has been met and the trial may continue to enroll. Phase 2 will evaluate 21 patients at the phase 2 dose. Tumor biopsies have been collected pre- and post-24 hours of the first dose of IMO-2125, as well as at 8 and 13 weeks to evaluate multiple immune markers. Clinical activity has been evaluated by the RECIST v1.1 criteria. Clinical data from this study has been presented at SITC (Free SITC Whitepaper) 2017, ASCO (Free ASCO Whitepaper)-SITC 2017 and AACR (Free AACR Whitepaper) 2017, and can be found also on Idera’s corporate website at View Source

About IMO-2125
Toll-like receptors (TLRs) play a central role in the innate immune system, the body’s first line of defense against invading pathogens, as well as damaged or dysfunctional cells including cancer cells. The innate immune system is also involved in activating the adaptive immune system, which marshals highly specific immune responses to target pathogens or tissue. Cancer cells may exploit regulatory checkpoint pathways to avoid being recognized by the immune system, thereby shielding the tumor from immune attack. Checkpoint inhibitors such as agents targeting CTLA4 or programmed cell death protein 1 (PD1) are designed to enable the immune system to recognize tumor cells. In this setting, intratumoral TLR9 agonist administration may increase the tumor-infiltrating lymphocytes (TILs), and thereby potentiate anti-cancer activity of checkpoint inhibitors in the injected tumor as well as systemically.

IMO-2125, Idera’s TLR9 agonist, has been created using the company’s proprietary chemistry-based discovery platform. IMO-2125 has been shown in various scientific presentations and publications to activate dendritic cells and induce interferon. Idera selected IMO-2125 to advance into clinical development in combination with checkpoint inhibitors based on this immunological profile. In previously completed clinical trials, subcutaneous administration of IMO-2125 was very well tolerated in about 114 patients with hepatitis C. Idera has conducted further preclinical and clinical research evaluating the potential of IMO-2125 to enhance the anti-tumor activity of other checkpoint inhibitors in cancer immunotherapy with data has been presented at several scientific and medical conferences during the past few years. The posters from these presentations can be found at View Source

About Metastatic Melanoma
Melanoma is a type of skin cancer that begins in a type of skin cell called melanocytes. As is the case in many forms of cancer, melanoma becomes more difficult to treat once the disease has spread beyond the skin to other parts of the body such as by through the lymphatic system (metastatic disease). Melanoma accounts for only one percent of skin cancer cases, but causes a large majority of skin cancer deaths. The American Cancer Society estimates that in 2017, there will be 87,110 new cases of melanoma in the U.S., and about 9,730 will die of this disease. Based on proprietary Idera research, the company anticipates by the year 2025, there will be roughly 13,000 anti-PD-1 refractory metastatic melanoma patients.