On December 12, 2017 Repros Therapeutics Inc. (NASDAQ: RPRX) ("Repros" or the "Company") reported that it has entered into a definitive agreement under which Allergan plc ("Allergan"), through a subsidiary, will acquire Repros for a cash payment of $0.67 per share (Press release, Repros Therapeutics, DEC 12, 2017, View Source [SID1234522585]). The Company’s Board of Directors has unanimously approved the transaction.

Under the terms of the merger agreement, a subsidiary of Allergan will commence a cash tender offer to purchase all of the outstanding shares of Repros common stock for $0.67 per share. The closing of the tender offer is subject to customary closing conditions, including the tender of a majority of the outstanding shares of Repros common stock. The merger agreement contemplates that Allergan, through its subsidiary, will acquire any shares of Repros that are not tendered into the offer through a second-step merger, which will be completed as soon as practicable following the closing of the tender offer. Pending approvals, Repros anticipates the transaction will close during the first quarter of 2018.

Stifel, Nicolaus & Company, Incorporated is serving as exclusive financial advisor to Repros, and Morgan, Lewis & Bockius LLP is serving as Repros’ legal counsel. Covington & Burling LLP is serving as Allergan’s legal counsel.

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On December 12, 2017 Geron Corporation (Nasdaq:GERN) reported four presentations related to imetelstat at the 59th American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting and Exposition held in Atlanta, Georgia from December 9-12, 2017 (Press release, Geron, DEC 12, 2017, View Source;p=RssLanding&cat=news&id=2322273 [SID1234522575]). Imetelstat is a telomerase inhibitor initially developed by Geron and exclusively licensed to Janssen Biotech, Inc. (Janssen) on a worldwide basis. The presentations are available on Geron’s website at www.geron.com/presentations.

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"We and our partner are pleased to have this first presentation of data from IMerge displaying an 8-week transfusion independence rate of 54% among the subset of patients who were naïve to lenalidomide and HMAs and who lacked del(5q), which suggests that imetelstat could offer lower risk MDS patients a much-needed treatment option," said John A. Scarlett, M.D., Geron’s President and Chief Executive Officer. "In addition, the non-clinical data presentations continue to support the potential use of imetelstat in multiple hematologic malignancies. We continue to be encouraged by the consistent interest in imetelstat by collaborators around the world."

Clinical Data Presentation

Title: Efficacy and Safety of Imetelstat in RBC Transfusion-Dependent (TD) IPSS Low/Int-1 MDS Relapsed/Refractory to Erythropoiesis-Stimulating Agents (ESA) (IMerge) (Abstract #4256)

This poster presentation described data from the first 32 patients enrolled in Part 1 of IMerge, the ongoing Phase 2/3 clinical trial of imetelstat in red blood cell (RBC) transfusion-dependent (TD) patients with lower risk MDS. TD is defined as an RBC transfusion requirement of ≥4 units over 8 weeks prior to entry into the trial. The primary efficacy endpoint is the rate of RBC transfusion-independence (TI) lasting at least 8 weeks, defined as the proportion of patients without any RBC transfusion during any consecutive 8 weeks since entry to the trial. Key secondary endpoints are the rate of 24-week TI and the rate of hematologic improvement-erythroid (HI-E), defined as a rise in hemoglobin of at least 1.5 g/dL above the pretreatment level for at least 8 weeks or a reduction of at least 4 units of RBC transfusions over 8 weeks compared with the prior RBC transfusion burden. IMerge is designed in two parts: Part 1 is a Phase 2, open-label, single-arm trial of imetelstat administered as a single agent by intravenous infusion, and Part 2 is designed to be a Phase 3, randomized, controlled trial.

Data as of October 2017 with a median follow-up of 66.1 weeks in Part 1 were presented. Part 2 has not yet begun.

Efficacy in the Overall Trial Population (n=32):

38% (12/32) of patients achieved ≥8-week RBC TI
Mean relative reduction in transfusion burden from baseline was 64%
16% (5/32) of patients achieved ≥24-week RBC TI, with the median TI duration exceeding one year in these patients
63% (20/32) of patients achieved an erythroid hematologic improvement (HI-E)
Efficacy in the Lenalidomide and HMA Naïve and Non-Del(5q) Subset (n=13):

54% (7/13) of patients achieved ≥8-week RBC TI
Mean relative reduction in transfusion burden from baseline was 71%
31% (4/13) of patients achieved ≥24-week RBC TI
69% (9/13) of patients achieved an HI-E
Safety Summary:

Cytopenias, particularly neutropenia and thrombocytopenia, were the most frequently reported adverse events which were predictable, manageable and reversible
Link to IMerge poster: Fenaux P, et al. ASH (Free ASH Whitepaper) 2017

Based on these data, Part 1 of IMerge is being expanded to enroll approximately 20 additional patients who are naïve to lenalidomide and HMA treatment and are non-del(5q) to increase the experience and confirm the benefit-risk profile of imetelstat in this refined target patient population. For more information about IMerge, please visit View Source

Non-Clinical Data Presentations

Data were presented from three non-clinical studies by academic scientists in collaboration with Janssen.

Title: Imetelstat, a Telomerase Inhibitor, Is Capable of Depleting Myelofibrosis Hematopoietic Stem Cells and Progenitor Cells (Abstract #1654)

This poster presentation described the effects of imetelstat on normal and myelofibrosis (MF) stem and progenitor cells in non-clinical models. The data showed that imetelstat inhibited the proliferation and differentiation of MF progenitor and stem cells in hematopoietic colony assays and xenograft models, but had minimal effects on normal hematopoietic stem and progenitor cells in such experiments. Imetelstat treatment of MF stem and progenitor cells reduced telomerase activity and induced apoptosis. These data provide further support that imetelstat may selectively inhibit the proliferation of and promote apoptosis in MF progenitor and stem cells, suppressing the malignant clones that drive the disease in patients.

Title: Telomerase Inhibition Impairs Self-Renewal of b-Catenin Activated Myeloproliferative Neoplasm Progenitors (Abstract #2860)

This poster presentation described the potential impact of imetelstat on leukemia stem cells in non-clinical models of chronic myeloid leukemia (CML) in blast crisis. The data suggest that imetelstat plus dasatinib, a standard treatment for CML, may inhibit self-renewal of blast crisis cells in vitro compared with normal bone marrow progenitors. In mouse xenograft models of blast crisis CML, imetelstat treatment reduced the number of leukemia progenitor cells detected in bone marrow and spleen, decreased spleen size, inhibited the self-renewal capacity and prolonged survival compared to controls. These data suggest that imetelstat may inhibit proliferation of malignant progenitors in CML.

Title: Integrated Molecular Analysis Identifies Replicative Stress as Sensitizer to Imetelstat Therapy in AML (Abstract #798)

This oral presentation described imetelstat’s activity in human acute myeloid leukemia (AML) patient-derived xenograft models. The preclinical data demonstrated that imetelstat prolonged overall survival of AML xenografts derived from 17 out of 30 individual patient samples compared to saline-treated controls. Molecular analysis showed that sustained responders were associated with gene signatures of replicative stress at baseline. The data also suggest that inducing replicative stress with standard induction chemotherapy may sensitize poorly responding samples to imetelstat. These data build on previously published preclinical work and further support potential application of imetelstat in the treatment of AML.

Webcast Investor Event

Management will be hosting a live webcast of an analyst and investor meeting on December 19, 2017 at 8:30 a.m. ET to discuss the imetelstat clinical data in MDS presented at ASH (Free ASH Whitepaper). The audio and slide presentation webcast will be accessible at www.geron.com on the Investor Relations pages, under Events. Following the live presentation, the webcast will be archived and available for replay at the same address for a period of 30 days.

About Imetelstat

Imetelstat (GRN163L; JNJ-63935937) is a potent and specific inhibitor of telomerase that is administered by intravenous infusion. This first-in-class compound, discovered by Geron, is a specially designed and modified short oligonucleotide, which targets and binds directly with high affinity to the active site of telomerase. Preliminary clinical data suggest imetelstat might have disease-modifying activity by inhibiting the progenitor cells of the malignant clones associated with hematologic malignancies in a relatively select manner. Most commonly reported adverse events in imetelstat clinical studies include fatigue, gastrointestinal symptoms and cytopenias. Imetelstat has not been approved for marketing by any regulatory authority.

About the Collaboration with Janssen

On November 13, 2014, Geron entered into an exclusive worldwide license and collaboration agreement with Janssen Biotech, Inc., to develop and commercialize imetelstat for oncology, including hematologic myeloid malignancies, and all other human therapeutics uses. Under the terms of the agreement, Geron received an upfront payment of $35 million and is eligible to receive additional payments up to a potential total of $900 million for the achievement of development, regulatory and commercial milestones, as well as royalties on worldwide net sales. All regulatory, development, manufacturing and promotional activities related to imetelstat are being managed through a joint governance structure, with Janssen responsible for these activities.

On December 12, 2017 CEL-SCI Corporation (NYSE American: CVM) reported that no further patient enrollment is required in the pivotal Phase 3 head and neck cancer study of its investigational immunotherapy Multikine* (Leukocyte Interleukin, Injection). The accrual and treatment phases of this Phase 3 study are complete (Press release, Cel-Sci, DEC 12, 2017, View Source [SID1234522593]). All of the 928 enrolled patients in the study are being followed-up as required by the study protocol.

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CEL-SCI recently announced that the study’s Independent Data Monitoring Committee (IDMC) completed its most recent review of the data from all 928 patients enrolled in the study, and recommended continuing the study as there was no evidence of any significant safety questions.

The primary endpoint of the study, a 10% improvement in overall survival of the Multikine treatment regimen plus Standard of Care (SOC) vs. Standard of Care alone, will be determined after a total of 298 deaths have occurred in these two main comparator arms of the study and have been recorded in the study database. The last patient was enrolled in the study in September 2016. Approximately 135 patients were enrolled in the study from 2011 to 2013, about 195 were enrolled in 2014, about 340 in 2015, and about 260 in 2016. The study protocol assumed an overall survival rate of about 55% at 3 years for the SOC treatment group alone.

IDMCs are committees commonly used by sponsors of clinical trials to protect the interests of the patients and the integrity of the study data in ongoing trials, especially when the trials involve patients with life threatening diseases, and when, as in cancer clinical trials, they extend over long periods of time.

On December 12, 2017 Cyclenium reported the signing of a drug discovery collaboration agreement with Ono Pharmaceutical Co., Ltd., a leading Japanese pharmaceutical research and development company (Press release, Cyclenium, DEC 12, 2017, View Source [SID1234635926]). The collaboration will exploit Cyclenium’s proprietary QUEST Library of next generation synthetic small-molecule macrocycles and associated optimization expertise to identify clinical candidates effective against multiple pharmacological targets selected by Ono in their therapeutic focus areas.

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While Cyclenium will be responsible for all medicinal chemistry efforts, starting from hit validation, to generate new macrocyclic compounds by employing its CMRTTM Technology, Ono will utilize its internal resources for the characterization of biological and pharmacological properties of these new macrocycles, as well as having full rights and responsibility for development and commercialization of the resulting drug candidates worldwide. In return, Cyclenium will receive an upfront payment and research funding from Ono, as well as development milestones and royalties on marketed products.

"We are very excited about entering this collaboration with Ono, our second with a major, globallyoperating, Japanese pharmaceutical partner," stated Helmut Thomas, Ph.D., President, Chief Executive Officer & Chief Scientific Officer of Cyclenium. "We are confident that our CMRT Technology and proven success in the macrocycle area combined with the excellent research team at Ono will provide new insight into the modulation of their difficult targets and enable the discovery of novel macrocyclic therapeutic agents."

"We highly appreciate Cyclenium’s expertise in the macrocycle area and their technology platform to generate new drug candidates for high priority targets in our portfolio," said Hiromu Habashita, Ph.D., Corporate Officer and Executive Director, Discovery and Research of Ono. "We are very pleased to work with Cyclenium on identifying and developing the next generation of innovative drugs and we believe novel macrocyclic drugs to be generated through this collaboration will fulfill unmet medical needs."

Cyclenium has translated its over 18 years of pioneering experience, extensive knowledge base and unparalleled expertise in small molecule macrocyclic chemistry into the next generation CMRT ("smart") drug discovery technology that addresses the shortcomings of earlier efforts in this increasingly important domain.

On December 12, 2017 GlycoMimetics, Inc. (NASDAQ: GLYC) reported updated data from the Phase 1/2 trial evaluating the safety, tolerability and efficacy of GMI-1271 in patients with relapsed/refractory (R/R) acute myeloid leukemia (AML) and in older adults with newly diagnosed AML, including the following conclusions (Press release, GlycoMimetics, DEC 12, 2017, View Source [SID1234522581]):

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For patients with R/R AML treated at the Phase 2 dose (n = 54) and for whom median follow up was 6.6 months:

Clinical remission (CR+CRi) was 43%.
Median overall survival was 9.4 months (95% CI: 5.7 – 15.1 months; calculated by Kaplan Meier method). This compares favorably to a median overall survival of up to 5.4 months reported for historical, matched controls treated with mitoxantrone, etoposide and cytarabine (MEC) alone. 1,2
Median duration of remission was 11.1 months (95% CI: 5.8-NA; calculated by Kaplan Meier method).
For older patients with newly diagnosed disease (n=25) and for whom median follow up was 10.5 months:

Clinical remission rate was 68%.
Median overall survival was 15.8 months (95% CI: 10.3 – NA; calculated by Kaplan Meier method). This compares favorably to a historical median overall survival of approximately 12 months in matched controls treated with 7+3 chemotherapy alone. 3,4
Median duration of remission was 14.8 months (95% CI: 8.3 – NA; calculated by Kaplan Meier method).
Median event free survival was 11.3 months.
The data were presented yesterday during an oral scientific session at the 59th American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting and Expo in Atlanta.

Across both populations, GMI-1271 was well tolerated with no obvious incremental toxicity observed and lower than expected rates of severe, debilitating, grade 3-4 mucositis reported (e.g., 3% incidence reported vs. historical 20-25% incidence with MEC alone).

"These new data from our Phase 1/2 clinical trial demonstrate that encouraging clinical outcomes are possible for both duration of remission and survival endpoints when GMI-1271 is added to chemotherapy in two distinct AML patient populations," noted Helen Thackray, M.D., FAAP, GlycoMimetics Senior Vice-President, Clinical Development and Chief Medical Officer. "Beyond the high response rates previously reported with GMI-1271, we can now point to additional long-term endpoints that further support our plan to move the drug candidate into a Phase 3 clinical trial scheduled to begin in mid-2018. Importantly, with respect to safety, the low mucositis rate in relapsed and refractory patients receiving MEC induction chemotherapy — where you would expect around 25% severe mucositis — is quite striking. This was predicted and explained by preclinical models in which GMI-1271 blocked inflammatory macrophages trafficking to the gut and thus prevented mucosal injury."

"These results continue to show that AML patients treated with GMI-1271 consistently perform better than expected," said Daniel J. DeAngelo, M.D., Ph.D., the trial’s lead investigator and Director of Clinical and Translational Research, Adult Leukemia Program, at the Dana-Farber Cancer Institute and Brigham and Women’s Hospital, who presented the data at the ASH (Free ASH Whitepaper) Annual Meeting. "Our Phase 2 population consists of very high-risk patients based on age, disease status, and cytogenetic risk factors. The updated data continue to support the concept that disrupting the relationship between leukemic cells and the protective bone marrow microenvironment, when combined with chemotherapy, could improve the outlook and prognosis for these patients."

The second oral presentation at the ASH (Free ASH Whitepaper) meeting highlighted a preclinical study in murine models of AML in which E-selectin was shown to be upregulated, and AML cells binding to E-selectin increased chemo-resistance by activating specific tumor cell survival signaling pathways. This effect within the bone marrow microenvironment is unique to E-selectin as compared to other vascular adhesion molecules and can be blocked by GMI-1271. This translational research provides important evidence that elucidates how treatment with GMI-1271 appears to be improving sensitivity to chemotherapy.

"Given response rates we’ve observed to date that suggest clinical benefit in combination with chemotherapy in two AML populations, this preclinical work provides important further support for the mechanism of action of GMI-1271," noted Dr. Thackray. "Together, the clinical and preclinical data we have shared at the ASH (Free ASH Whitepaper) Annual Meeting demonstrate that GMI-1271 could represent a novel and truly differentiated approach to treatment of AML," Dr. Thackray concluded.

Meeting abstracts are available on ASH (Free ASH Whitepaper)’s website.

GlycoMimetics to Hold Post-ASH Meeting Briefing in Boston on December 19

GlycoMimetics will hold a briefing for investors/analysts, which will also be available via webcast, to review the GMI-1271 program with a focus on the AML clinical data presented at the ASH (Free ASH Whitepaper) Annual Meeting, at the Langham Hotel in Boston, December 19, at 7:30 a.m. EST. Dr. DeAngelo will present the clinical data from the ASH (Free ASH Whitepaper) oral presentation and respond to questions from on-site participants.