- |||||||||| imetelstat (GRN163L) / Geron
Journal: Telomerase-Targeted Therapies in Myeloid Malignancies. (Pubmed Central) - May 22, 2023 We go on to discuss the development of telomere and telomerase targeted therapeutic candidates within the realm of myeloid malignancies. We overview all mechanisms of targeting telomerase that are currently in development with a particular focus on imetelstat, an oligonucleotide with direct telomerase inhibitory properties that has advanced the furthest in clinical development and has demonstrated promising data in multiple myeloid malignancies.
- |||||||||| imetelstat (GRN163L) / Geron, Evrenzo (roxadustat) / Astellas, AstraZeneca, FibroGen, Reblozyl (luspatercept-aamt) / BMS, Merck (MSD)
Journal: Novel Approaches and Future Directions in Myelodysplastic Syndrome Treatment. (Pubmed Central) - May 21, 2023 For higher-risk MDS patients, hypomethylating agent monotherapy continues to be the standard of care. However, with various novel hypomethylating agent-based combination therapies in advanced clinical testing and an increased emphasis on individualized biomarker-driven treatment decisions, the standard therapy paradigms might change in the future.
- |||||||||| Rytelo (imetelstat) / Geron
Trial initiation date: IMpress: Study to Evaluate Imetelstat in Patients With High-Risk MDS or AML Failing HMA-based Therapy (clinicaltrials.gov) - May 16, 2023 P2, N=46, Not yet recruiting, However, with various novel hypomethylating agent-based combination therapies in advanced clinical testing and an increased emphasis on individualized biomarker-driven treatment decisions, the standard therapy paradigms might change in the future. Initiation date: Dec 2022 --> May 2023
- |||||||||| imetelstat (GRN163L) / Geron, Jakafi (ruxolitinib) / Novartis, Incyte
AN OPEN-LABEL, PHASE 1/1B STUDY TO EVALUATE THE SAFETY, PHARMACOKINETICS, PHARMACODYNAMICS AND CLINICAL ACTIVITY OF IMETELSTAT IN COMBINATION WITH RUXOLITINIB IN PATIENTS WITH MYELOFIBROSIS: IMPROVEMF () - May 12, 2023 - Abstract #EHA2023EHA_3056; P1 Phase 1 dose-escalation (Part 1) is open for enrollment at ?3 sites across North America, targeting ?41 pts. Telomerase activity, Myelofibrosis, Janus Kinase inhibitor, Therapy
- |||||||||| imetelstat (GRN163L) / Geron, Evrenzo (roxadustat) / Astellas, AstraZeneca, FibroGen, Reblozyl (luspatercept-aamt) / BMS, Merck (MSD)
Therapies of Anemia (Excluding MDS-RS Treatment) (Auditorium; Virtual) - Apr 25, 2023 - Abstract #MDS2023MDS_81; Luspatercept, a TGFbeta family ligand-trap induces nearly 50% of RBC transfusion independence in MDS with ring sideroblasts ( RS), but it has been shown to be active also in transfusion dependent non-RS LR MDS both in first line and after failure of ESA treatment. The telomerase inhibitor imetelstat has shown efficacy and disease modifying activity in LR MDS ESA refractory or relapsed, who did not receive lenalidomide or hypomethylating agents...Another approach has been represented by the oral hypoxia
- |||||||||| imetelstat (GRN163L) / Geron, Reblozyl (luspatercept-aamt) / BMS, Merck (MSD), Inqovi (decitabine/cedazuridine) / Otsuka
Why the last? This chapter was written years ago, before the IPSS-M, before the 5th edition WHO, before the ICC, before important new biological and genetic discoveries, before luspatercept and ASTX727 approval, and potentially imetelstat soon. So it’s already partly obsolete. (Twitter) - Mar 4, 2023
- |||||||||| imetelstat (GRN163L) / Geron
Imetelstat 👏 (Twitter) - Jan 7, 2023
- |||||||||| Review, Journal: Anemia in myelofibrosis: current and emerging treatment options. (Pubmed Central) - Nov 5, 2022
This review summarizes current and emerging treatments for anemia in MF, including luspatercept and KER-050 (transforming growth factor-β ligand traps), momelotinib and pacritinib (JAK inhibitors), pelabresib (a bromodomain extra-terminal domain inhibitor), PRM-151 (an antifibrotic agent), imetelstat (a telomerase inhibitor), and navitoclax (a BCL-2/BCL-xL inhibitor). Therapeutic combinations with ruxolitinib may offer another treatment approach.
- |||||||||| imetelstat (GRN163L) / Geron
MYF3001: A Randomized Open Label, Phase 3 Study to Evaluate Imetelstat Versus Best Available Therapy in Patients with Intermediate-2 or High-Risk Myelofibrosis Relapsed/Refractory to Janus Kinase Inhibitor (ENMCC - Hall D) - Nov 4, 2022 - Abstract #ASH2022ASH_4422; P2, P3 Janus Kinase inhibitors (JAKi) ruxolitinib, pacritinib and fedratinib are the FDA-approved treatment options for MF...Patients will be randomized to receive intravenous imetelstat 9.4 mg/kg every 21 days or investigator-selected BAT that may include hydroxyurea, thalidomide, interferon, danazol, hypomethylating agents, chemotherapy, or other non–JAKi-containing therapy as appropriate (Figure 2)...Approximately 180 sites are planned in North and South America, Europe, Middle East, Australia and Asia. The study is actively enrolling.
- |||||||||| imetelstat (GRN163L) / Geron, Jakafi (ruxolitinib) / Novartis, Incyte
MYF1001: An Open Label, Dose Escalation and Expansion, Phase 1/1b Study to Evaluate the Safety, Pharmacokinetics, Pharmacodynamics and Clinical Activity of Imetelstat in Combination with Ruxolitinib in Patients with Intermediate 1, Intermediate 2 or High-Risk Myelofibrosis (ENMCC - Hall D) - Nov 4, 2022 - Abstract #ASH2022ASH_2572; P1, P2 Secondary objectives include symptom and spleen response rates at Week 24, progression-free survival, clinical response assessments per modified 2013 International Working Group – Myeloproliferative Neoplasms Research and Treatment criteria, time to and duration of response, reduction in degree of bone marrow fibrosis, and the pharmacokinetics and immunogenicity of imetelstat. The Phase 1 dose-escalation (Part 1) is open for enrollment, with approximately 3 sites planned in North America.
- |||||||||| imetelstat (GRN163L) / Geron
Imetelstat-Mediated Alterations in Lipid Metabolism to Induce Ferroptosis As Therapeutic Strategy for Acute Myeloid Leukemia (ENMCC - 343-345) - Nov 4, 2022 - Abstract #ASH2022ASH_1599; In vivo AML PDX efficacy of imetelstat was partially diminished by liproxstatin-1 treatment...Anthracycline/cytarabine chemotherapy significantly increased ROS levels in a dose-dependent manner in all AML cell lines tested...Pharmacological inhibition of ferroptosis diminishes imetelstat efficacy. These mechanistic insights may be leveraged to develop an optimized therapeutic strategy using oxidative stress-inducing chemotherapy to sensitize leukemia cells to imetelstat providing significantly improved disease control for AML.
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