Ichnos Sciences Announces Initiation of First-In-Human Clinical Trial for ISB 2001

On November 2, 2023 Ichnos Sciences Inc., a global clinical-stage biotechnology company developing innovative multispecific immune cell engager antibodies in oncology, reported dosing of the first patient in the Phase 1 first-in-human clinical trial of ISB 2001, a BCMA x CD38 x CD3 TREAT trispecific antibody1, for the treatment of multiple myeloma (Press release, Ichnos Sciences, NOV 2, 2023, View Source [SID1234636765]). This milestone follows the company’s approval from the Human Research Ethics Committee (HREC) in Australia and IND clearance from the U.S. Food and Drug Administration (U.S. FDA). Additionally, the trispecific antibody received orphan drug designation (ODD) from the U.S. FDA in July, making it Ichnos’ third clinical-stage asset to receive the designation.

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ISB 2001 is the company’s first T-cell engaging trispecific antibody based on the company’s proprietary BEAT platform2,which enables the development of immune cell engagers. It features three proprietary Fab arms binding to CD3 on T cells, as well as BCMA and CD38 on multiple myeloma cells. By targeting two tumor-associated antigens, ISB 2001 exhibits heightened specificity in recognizing and binding to tumor cells. This avidity-based binding demonstrates increased tumor cell killing in vitro compared to teclistamab, alnuctamab, and EM-801 across variable levels of BCMA and CD38 expression.

Additionally, ISB 2001 exhibits higher potency in vitro when compared to the combination of daratumumab and teclistamab currently under clinical investigation, as demonstrated by data presented at the American Association for Cancer Research (AACR) (Free AACR Whitepaper)’s (AACR) (Free AACR Whitepaper) 2023 Annual Meeting.

"We are proud to advance our third oncology asset to clinical trials—a milestone made more significant because it is our first clinical-stage trispecific antibody," said Cyril Konto, M.D., president and CEO of Ichnos. "Our novel approach to targeting multiple molecules intends to enhance specificity, engage the immune system, and offer potential synergistic effects in our ongoing pursuit of groundbreaking cancer treatments."

"Not only does the advancement of ISB 2001 demonstrate our shared commitment to providing curative therapies that may extend and improve lives, but it’s also a testament to the operational excellence that enables us to run concurrent clinical programs in pursuit of our vital mission," Konto added.

This study is a first-in-human, Phase 1, open-label study that will evaluate safety and anti-myeloma activity of ISB 2001 in an estimated 80 participants with relapsed/refractory multiple myeloma (R/R MM) across multiple centers, including the U.S. and Australia. The multicenter study will be conducted in two parts: dose escalation and dose expansion.

"The unique triple targeting of BCMA, CD38, and CD3 showcases Ichnos’ scientific ingenuity underlying ISB 2001, offering a promising approach in the treatment of multiple myeloma," said Lida Pacaud, M.D., Chief Medical Officer of Ichnos. "We look forward to advancing our understanding of its safety and efficacy profile as we progress through this first-in-human study, driven by a commitment to pushing the boundaries of what is possible in the field of hemato-oncology."

More information about the trial, including investigational site locations, site-specific contacts and eligibility criteria for participants, is available on ClinicalTrials.gov.

With the start of this first-in-human clinical study of ISB 2001, Ichnos now has three clinical-stage oncology assets under investigation for the treatment of relapsed/refractory multiple myeloma and has initiated one new Phase 1 clinical study per year for three consecutive years.

Additional details about ISB 2001 and Ichnos’ pipeline of oncology assets can be found at ichnos.com/pipeline/.

Helix BioPharma Corp. Announces Closing of Private Placement of CAD $3 Million and Board Changes

On November 2, 2023 Helix BioPharma Corp. (TSX: "HBP") ("Helix" or the "Company"), a clinical-stage biopharmaceutical company developing unique therapies in the field of immuno-oncology, based on its proprietary technological platform DOS47, reported that it has closed the first tranche of private placement financing for gross proceeds of CAD $2,998,000 from the issuance of 16,655,557 common shares at a price of $0.18 per common share (Press release, Helix BioPharma, NOV 2, 2023, View Source [SID1234636764]).

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PR: Heidelberg Pharma Presents New Clinical Data from its Lead Candidate HDP-101 at the ASH Annual Meeting 2023

On November 2, 2023 Heidelberg Pharma AG (FSE: HPHA) reported that it will present new findings of its clinical Phase I/IIa study with the proprietary ADC candidate HDP-101 at the 65th Annual Meeting of the American Society of Hematology (ASH) (Free ASH Whitepaper) (Press release, Heidelberg Pharma, NOV 2, 2023, View Source [SID1234636763]).

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Dr. András Strassz, Chief Medical Officer at Heidelberg Pharma, commented: "We are very pleased with the progress of patient enrollment in our clinical trial with HDP-101. So far, HDP-101 has shown to be safe and well tolerated, and we will continue dose escalation in the fifth patient cohort (100 µg/kg) as planned."

Poster title: HDP-101, an Anti-BCMA Antibody-Drug Conjugate with a Novel Payload Amanitin in Patients with Relapsed Multiple Myeloma, Initial Findings of the First in Human Study

Presentation details

Abstract: #3334

Session: 652. Multiple Myeloma: Clinical and Epidemiological: Poster II

Time and location: Sunday, 10th December 2023, 6:00 pm – 8:00 pm PST, Hall G-H

Dr. Strassz will present the poster showing safety data and preliminary findings from four patient cohorts of the ongoing open-label, multicenter Phase I/IIa trial evaluating HDP-101 in multiple myeloma. He will also be available to answer questions.

HDP-101 is a BCMA antibody-Amanitin conjugate for the treatment of relapsed or refractory multiple myeloma, a bone marrow cancer with high unmet medical need. The first part of the trial is a Phase I dose escalation study to determine an optimal and safe dose of HDP-101 for the Phase II part of the study.

The first four patient cohorts and dose levels of the clinical study have been completed and proved to be safe and well tolerated. Currently, the trial is enrolling patients in the fifth cohort.

Geron Corporation Reports Business Highlights and Third Quarter 2023 Financial Results

On November 2, 2023 Geron Corporation (Nasdaq: GERN), a late-stage clinical biopharmaceutical company developing a first-in-class telomerase inhibitor, imetelstat, to treat hematologic malignancies, reported business highlights and financial results for the third quarter of 2023 (Press release, Geron, NOV 2, 2023, View Source [SID1234636762]).

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"This quarter, we continued to make important progress and build momentum along our planned path to develop and commercialize imetelstat, which is now the first telomerase inhibitor to be under review by both the FDA and EMA for potential regulatory approval," said John A. Scarlett, M.D., Chairman and Chief Executive Officer. "We see lower risk MDS as a very compelling commercial opportunity, with few durable treatment options and significant need for large patient segments such as patients without sideroblasts (RS-) and those with high transfusion burden. We believe, if approved, that imetelstat could play a meaningful role in this treatment landscape."

Dr. Scarlett continued, "We believe that we are in a strong position to execute upon a potential launch in the U.S., bolstered by an experienced leadership team and with our talented commercial and medical affairs leadership teams fully onboarded. Additionally, with approximately $382 million on the balance sheet as of the end of the quarter, and expected available resources, we have the financial resources to fund a potential successful launch in the U.S. and our planned operations through the end of Q3 2025."

Business Highlights

Received acceptance from the U.S. Food & Drug Administration (FDA) of the New Drug Application (NDA) submitted for imetelstat for the treatment of transfusion-dependent anemia in adult patients with low- to intermediate-1 risk myelodysplastic syndromes (MDS), or lower risk MDS, who have failed to respond, or have lost response to, or are ineligible for erythropoiesis-stimulating agents (ESAs). The FDA assigned a Prescription Drug User Fee Act (PDUFA) action date of June 16, 2024. In addition, the FDA informed the Company that it is currently planning to hold an advisory committee meeting as part of the NDA review.
Submitted the Marketing Authorization Application (MAA) for imetelstat in the same lower risk MDS indication as in the NDA and received validation from the European Medicines Agency (EMA) that the application is under regulatory review by the European Committee for Medicinal Products for Human Use (CHMP) under the centralized procedure. Review of the MAA is expected to be completed by the end of 2024.
Presented encore data and analyses from the IMerge Phase 3 clinical trial evaluating imetelstat in patients with lower risk MDS at the Society of Hematologic Oncology Annual Meeting. New analyses from this trial are also planned at the American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting, on which a separate press release will be issued.
Escalated to the second dose cohort in the Phase 1 ImproveMF study evaluating imetelstat as a combination therapy with ruxolitinib in patients with frontline myelofibrosis (MF) following a unanimous decision by the study’s Safety Evaluation Team (SET), who reviewed the first cohort (3 patients) data and identified no dose-limiting toxicities.
Appointed Michelle Robertson as Executive Vice President, Chief Financial Officer and Treasurer, following Olivia Bloom’s retirement. Ms. Robertson brings to Geron over 30 years of financial and commercial operations experience. Prior to joining, she served as the Chief Financial Officer and Treasurer of Editas Medicine, a CRISPR genome editing company, where she raised $500M in capital over three years to support the company’s research transition into late-stage clinical development. Before that, she served as Chief Financial Officer of Momenta Pharmaceuticals, Inc. from 2018 until 2020, leading the finance team through a strategic restructure, before its acquisition by Johnson & Johnson. Prior to joining Momenta, Ms. Robertson held multiple finance and commercial operations roles of increasing responsibility.
Third Quarter 2023 Financial Results

As of September 30, 2023, the Company had $381.9 million in cash, cash equivalents, and marketable securities. In the third quarter of 2023, the Company received $28.3 million upon the cash exercise of outstanding warrants. As of September 30, 2023, warrants remaining outstanding are exercisable for potential future proceeds of $3.2 million. Based on the Company’s current operating plans and expectations regarding the timing of regulatory approval and commercialization of imetelstat in the United States (U.S.) in the first half of 2024, Geron projects that its existing financial resources, together with projected revenues from U.S. sales of imetelstat, proceeds from the exercise of outstanding warrants, and funding under the Company’s loan facility, will be sufficient to fund its projected operating requirements through the end of Q3 2025.

Revenues for the three and nine months ended September 30, 2023, were $164,000 and $214,000, respectively, compared to $297,000 and $493,000 for the comparable 2022 periods. Revenues in both years primarily reflect estimated royalties from sales of cell-based research products from the Company’s divested stem cell assets.

Total operating expenses for the three and nine months ended September 30, 2023, were $47.8 million and $139.9 million, respectively, compared to $40.2 million and $97.1 million for the comparable 2022 periods.

Research and development expenses for the three and nine months ended September 30, 2023, were $29.4 million and $92.1 million, respectively, compared to $24.6 million and $67.3 million for the comparable 2022 periods. The increase in research and development expenses for the three and nine months ended September 30, 2023, compared to the same periods in 2022 primarily reflects higher clinical trial costs related to supporting IMerge Phase 3 and IMpactMF, increased personnel-related expenses for additional headcount, higher consulting costs to support regulatory submissions and greater imetelstat manufacturing costs in preparation for potential commercialization in lower risk MDS.

General and administrative expenses for the three and nine months ended September 30, 2023, were $18.4 million and $47.7 million, respectively, compared to $15.6 million and $29.8 million for the comparable 2022 periods. The increase in general and administrative expenses for the three and nine months ended September 30, 2023, compared to the same periods in 2022, primarily reflects new costs for commercial preparatory activities and higher personnel-related expenses for additional headcount.

Interest income was $5.0 million and $13.6 million for the three and nine months ended September 30, 2023, respectively, compared to $852,000 and $1.3 million for the same periods in 2022. The increase in interest income for the three and nine months ended September 30, 2023, compared to the same periods in 2022, primarily reflects higher yields on the Company’s marketable securities as a result of rising interest rates, as well as a larger investment portfolio with the cash proceeds from the January 2023 public offering and warrant exercises in the first nine months of 2023.

Interest expense was $2.0 million and $6.0 million for the three and nine months ended September 30, 2023, respectively, compared to $1.8 million and $4.9 million for the same periods in 2022. The increase in interest expense for the three and nine months ended September 30, 2023, compared to the same periods in 2022, primarily reflects higher interest rates. Currently, the Company has $50.0 million in principal debt outstanding.

Projected 2023 Financial Guidance

For fiscal year 2023, under generally accepted accounting principles (GAAP), the Company continues to expect total expenses in the range of approximately $200 million to $210 million, which includes non-cash items such as stock-based compensation expense, amortization of debt discounts and issuance costs, and depreciation and amortization.

The fiscal year 2023 financial guidance reflects costs to support regulatory submissions with the FDA and EMA in 2023; continued support of ongoing clinical trials, IMerge Phase 3, IMpactMF, ImproveMF, and the investigator-led Impress trial, as well as preclinical studies in lymphoid malignancies and discovery research for a next generation telomerase inhibitor; manufacturing of commercial inventory of imetelstat; preparations for potential U.S. commercial launch of imetelstat in lower risk MDS; projected increases in headcount and interest payments on outstanding debt.

As of September 30, 2023, the Company had 137 employees. The Company plans to grow to a total of approximately 160 employees by year-end 2023.

Conference Call

Geron will host a conference call at 9:00 am ET on Thursday, November 2, 2023 to discuss business updates and third quarter 2023 financial results.

A live webcast of the conference call and related presentation will be available on the Company’s website at www.geron.com/investors/events. An archive of the webcast will be available on the Company’s website for 30 days.

Participants may access the webcast by registering online using the following link, View Source

About Imetelstat

Imetelstat is a novel, first-in-class investigational telomerase inhibitor exclusively owned by Geron and being developed in hematologic malignancies. Data from non-clinical studies and clinical trials of imetelstat provide strong evidence that imetelstat targets telomerase to inhibit the uncontrolled proliferation of malignant stem and progenitor cells in myeloid hematologic malignancies, resulting in malignant cell apoptosis and suggesting potential disease-modifying activity. Imetelstat has been granted Fast Track designation by the U.S. Food and Drug Administration for both the treatment of adult patients with transfusion dependent anemia due to Low or Intermediate-1 risk MDS that is not associated with del(5q) who are refractory or resistant to an erythropoiesis stimulating agent, and for adult patients with Intermediate-2 or High-risk myelofibrosis (MF) whose disease has relapsed after or is refractory to janus associated kinase (JAK) inhibitor treatment. Imetelstat is currently not approved by any regulatory authority.

About IMerge Phase 3

The Phase 3 portion of the IMerge Phase 2/3 study is a double-blind, 2:1 randomized, placebo-controlled clinical trial to evaluate imetelstat in patients with IPSS Low or Intermediate-1 risk (lower risk) transfusion dependent MDS who were relapsed after, refractory to, or ineligible for, erythropoiesis stimulating agent (ESA) treatment, had not received prior treatment with either a HMA or lenalidomide and were non-del(5q). To be eligible for IMerge Phase 3, patients were required to be transfusion dependent, defined as requiring at least four units of packed red blood cells (RBCs), over an eight-week period during the 16 weeks prior to entry into the trial. The primary efficacy endpoint of IMerge Phase 3 is the rate of red blood cell transfusion independence (RBC-TI) lasting at least eight weeks, defined as the proportion of patients without any RBC transfusion for at least eight consecutive weeks since entry to the trial (8-week TI). Key secondary endpoints include the rate of RBC-TI lasting at least 24 weeks (24-week TI), the duration of TI and the rate of hematologic improvement erythroid (HI-E), which is defined under 2006 IWG criteria as a rise in hemoglobin of at least 1.5 g/dL above the pretreatment level for at least eight weeks or a reduction of at least four units of RBC transfusions over eight weeks compared with the prior RBC transfusion burden. A total of 178 patients were enrolled in IMerge Phase 3 across North America, Europe, Middle East and Asia.

About ImproveMF

IMproveMF is a single arm, open label, two-part Phase 1 study to evaluate the safety, pharmacokinetics, pharmacodynamics and clinical activity of imetelstat in combination with ruxolitinib as a frontline treatment in patients with Intermediate-2 or High-risk MF (frontline MF). In both parts, patients will receive ruxolitinib followed by imetelstat, a dosing schedule that showed synergistic and additive effects of the two agents in preclinical experiments. Part 1 will enroll up to 20 frontline MF patients who, at the time of enrollment, have received an optimized dose of ruxolitinib, to which imetelstat treatment will be added at increasing dose levels based on safety and tolerability. The primary purpose of Part 1 is to identify a safe dose for treating frontline MF patients with a combination of imetelstat and ruxolitinib. If a safe dose is identified in Part 1, participants in Part 2 will be JAK inhibitor naïve and will receive treatment with ruxolitinib after screening and enrollment at a starting dose based on standard-of-care or local prescribing information. Treatment with single-agent ruxolitinib will continue for at least 12 weeks, including four consecutive weeks at a stable dose prior to the addition of imetelstat. Part 2 is designed to confirm the safety profile of imetelstat in combination with ruxolitinib and to evaluate for preliminary clinical activity of the combination.

Geron IMerge Phase 3 Presentations at Upcoming ASH Annual Meeting Reinforce Significant Durability and Breadth of Effect of Imetelstat in Lower Risk MDS

On November 2, 2023 Geron Corporation (Nasdaq: GERN), a late-stage clinical biopharmaceutical company, reported the publication of abstracts from the IMerge Phase 3 clinical trial evaluating its first-in-class investigational telomerase inhibitor imetelstat in patients with lower risk myelodysplastic syndromes (MDS) (Press release, Geron, NOV 2, 2023, View Source [SID1234636761]). Four abstracts have been accepted for presentation at the 65th American Society of Hematology (ASH) (Free ASH Whitepaper) Annual Meeting taking place from December 9-12 in San Diego, California and virtually.

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"The 2023 ASH (Free ASH Whitepaper) abstracts present data and analyses from the IMerge Phase 3 clinical trial that reinforce the differentiated clinical profile of imetelstat in lower risk MDS, and specifically highlight that patients achieve TI irrespective of risk status based on classification systems, or specific poor prognostic mutation profiles. Of particular importance, the nearly 20% of imetelstat-treated patients who achieved one year or greater transfusion independence with accompanying hemoglobin rises of 5 g/dl and reduction of MDS-associated mutations speak to the potential of this novel therapy to provide clinical benefits to patients that have not been observed before in transfusion-dependent lower risk MDS," said Faye Feller, M.D., Geron’s Executive Vice President, Chief Medical Officer.

Imetelstat is currently under regulatory review by the U.S. Food and Drug Administration (FDA) and by the European Medicines Agency (EMA) for the treatment of transfusion dependent anemia in adult patients with lower risk MDS who have failed to respond or have lost response to or are ineligible for erythropoiesis-stimulating agents (ESAs).

"The data from IMerge Phase 3 being presented at the ASH (Free ASH Whitepaper) annual meeting provides important insight into the breadth of effect of TI achieved with imetelstat across different risk subgroups and across the various underlying mutations associated with MDS, suggesting a broad use for imetelstat in patients eligible for the study, including in difficult-to-treat subgroups. Imetelstat also demonstrated efficacy among patients who were reclassified as higher risk using molecular international prognostic scoring system (IPSS-M)," said Rami S. Komrokji, M.D., Vice Chair, Malignant Hematology Department, Moffitt Cancer Center, one of the principal investigators of IMerge Phase 3 and ASH (Free ASH Whitepaper) presenter. "Additionally, our abstract showcasing a real-world data population level analysis of over 5,000 lower risk MDS patients adds to the significant literature suggesting a correlation between TI and improvement in survival. These data support the importance of TI to improve outcomes for patients with lower risk MDS."

Abstract #194: "Efficacy of Imetelstat in Achieving Red Blood Cell Transfusion Independence (RBC-TI) Across Different Risk Subgroups in Patients with Lower Risk Myelodysplastic Syndromes (LR MDS) Relapsed/Refractory (R/R) to Erythropoiesis Stimulating Agents (ESAs) in IMerge Phase 3 Study"

Oral Presentation on December 9, 2023, at 2:15 p.m. PT

This abstract evaluates TI rates in patients treated with imetelstat vs. placebo across different risk subgroups as defined by International Prognostic Scoring System (IPSS), revised IPSS (IPSS-R) or IPSS molecular (IPSS-M) risk profiles and shows that patients treated with imetelstat consistently had higher TI response rates than placebo regardless of risk classification. Further, in patients re-classified as high or very high risk using IPSS-M, TI response rates with imetelstat (and not placebo) were similar to TI response rates in lower risk subgroups. This analysis suggests imetelstat has clinical activity in lower risk MDS patients independent of risk categories.

Abstract #4603: "Impact of Mutational Status on Clinical Response to Imetelstat in Patients with Lower Risk Myelodysplastic Syndromes in the IMerge Phase 3 Study"

Poster Presentation on December 11, 2023, from 6-8 p.m. PT

This abstract evaluates the impact of MDS-associated mutations on clinical efficacy of imetelstat for the 165 of 178 patients for whom mutation data were available and shows that RBC-TI response rates in patients receiving imetelstat occurred regardless of the presence of baseline MDS associated mutations that have a poor prognosis (either specific mutations or multiple concurrent mutations). In patients with mutations associated with poor prognosis (TP53, ETV6, RUNX1, ASXL1, or EZH2), ≥8-week and ≥24-week, TI was observed in 31.8% and 9.1% of imetelstat-treated patients vs 0 on placebo. The 8-week TI rate for patients with 3 or more mutations was 55.6% with imetelstat compared to 14.3% with placebo. This analysis suggests clinical benefit of imetelstat across different molecularly defined subgroups and independent of the underlying molecular pattern.

Abstract #4605: "Durable Continuous Transfusion Independence (TI) With Imetelstat in IMerge Phase 3 for Patients with Heavily Transfused Non-Del(5q) Lower Risk Myelodysplastic Syndromes (LR MDS) Relapsed/Refractory (R/R) to or Ineligible for Erythropoiesis-Stimulating Agents (ESAs)"

Poster Presentation on December 11, 2023, from 6-8 p.m. PT

This abstract evaluates the 1-year TI responders in IMerge Phase 3, including 17.8% of imetelstat-treated patients (21/118; 95% CI, 11.4-25.9) and 1.7% of patients on placebo (1/60; 95% CI, 0-8.9). The median duration of TI for imetelstat ≥1-year TI responders was 123 weeks (95% CI, 80.4 to not evaluable); the median increase in hemoglobin during the longest TI interval was 5.18 g/dL (range, 2.67-13.76 g/dL) for the imetelstat group vs 1.67 g/dL for the placebo patient. Of the 18/21 imetelstat-treated 1-year TI responders for whom mutation data were available, 72.2% achieved ≥50% SF3B1 variant allele frequency (VAF) reduction, including 7 patients in whom there was complete elimination of MDS associated mutations. The abstract concludes that the long-term durable TI, robust increases in hemoglobin and meaningful reductions in mutational burden suggest imetelstat may have disease-modifying activity. Grade 3-4 thrombocytopenia and neutropenia occurred in 14 (67%) and 20 (95%) patients with ≥1-year TI, respectively, and the mean duration of grade 3/4 thrombocytopenia and neutropenia events was 2.25 and 1.78 weeks, respectively. 89% of grade 3/4 thrombocytopenia and 81% of grade 3/4 neutropenia was reduced to grade 1/2 within 4 weeks.

Abstract #2440: "Durable Transfusion Independence in Lower Risk Myelodysplastic Syndrome (LR MDS) Is Associated with Better Survival: A Population Level Analysis Based on a Large US Health Insurance Claims Database"

Poster Presentation on December 11, 2023, from 6-8 p.m. PT

This abstract describes a population level analysis of 5,662 lower risk MDS patients identified through Optum Clinformatics between October 2015 and June 2022. Among these patients, 35% and 49% were transfusion-dependent before first and second lines of therapy, respectively. The median overall survival from start of second line therapy was 23.4 months overall, and 37.9 months vs 9.3 months among responders becoming transfusion independent vs non-responders, respectively (P < .0001). Despite the currently available therapies, transfusion dependence after any line of therapy is associated with poorer outcomes. Achievement of durable TI was associated with improved survival, supporting the clinical benefit of achieving transfusion independence in lower risk MDS.

These abstracts are available on the ASH (Free ASH Whitepaper) 2023 Meeting website at View Source

About IMerge Phase 3

The Phase 3 portion of the IMerge Phase 2/3 study is a double-blind, 2:1 randomized, placebo-controlled clinical trial to evaluate imetelstat in patients with IPSS Low or Intermediate-1 risk (lower risk) transfusion dependent MDS who were relapsed after, refractory to, or ineligible for, erythropoiesis stimulating agent (ESA) treatment, had not received prior treatment with either a HMA or lenalidomide and were non-del(5q). To be eligible for IMerge Phase 3, patients were required to be transfusion dependent, defined as requiring at least four units of packed red blood cells (RBCs), over an eight-week period during the 16 weeks prior to entry into the trial. The primary efficacy endpoint of IMerge Phase 3 is the rate of red blood cell transfusion independence (RBC-TI) lasting at least eight weeks, defined as the proportion of patients without any RBC transfusion for at least eight consecutive weeks since entry to the trial (8-week TI). Key secondary endpoints include the rate of RBC-TI lasting at least 24 weeks (24-week TI), the duration of TI and the rate of hematologic improvement erythroid (HI-E), which is defined under 2006 IWG criteria as a rise in hemoglobin of at least 1.5 g/dL above the pretreatment level for at least eight weeks or a reduction of at least four units of RBC transfusions over eight weeks compared with the prior RBC transfusion burden. A total of 178 patients were enrolled in IMerge Phase 3 across North America, Europe, Middle East and Asia.

About Imetelstat

Imetelstat is a novel, first-in-class investigational telomerase inhibitor exclusively owned by Geron and being developed in hematologic malignancies. Data from non-clinical studies and clinical trials of imetelstat provide strong evidence that imetelstat targets telomerase to inhibit the uncontrolled proliferation of malignant stem and progenitor cells in myeloid hematologic malignancies resulting in malignant cell apoptosis and potential disease-modifying activity. Imetelstat has been granted Fast Track designation by the U.S. Food and Drug Administration for both the treatment of adult patients with transfusion dependent anemia due to Low or Intermediate-1 risk MDS that is not associated with del(5q) who are refractory or resistant to an erythropoiesis stimulating agent, and for adult patients with Intermediate-2 or High-risk myelofibrosis (MF) whose disease has relapsed after or is refractory to Janus associated kinase (JAK) inhibitor treatment. Imetelstat is currently not approved by any regulatory authority.