Page last updated: 2024-11-13

imetelstat

Description Research Excerpts Clinical Trials Roles Classes Pathways Study Profile Bioassays Related Drugs Related Conditions Protein Interactions Research Growth

Cross-References

ID SourceID
PubMed CID72941969
MeSH IDM0545573

Synonyms (1)

Synonym
imetelstat

Research Excerpts

Toxicity

ExcerptReferenceRelevance
" The most frequent adverse events were fatigue (55%), diarrhea (51%), nausea (44%), and hypertension (42%)."( Safety, pharmacokinetics, and efficacy of AMG 706, an oral multikinase inhibitor, in patients with advanced solid tumors.
Bass, MB; Benjamin, R; Chang, DD; Herbst, RS; Koutsoukos, A; Kurzrock, R; Mulay, M; Ng, C; Polverino, A; Purdom, M; Rosen, LS; Silverman, J; Sun, YN; Van Vugt, A; Wiezorek, JS; Xu, RY, 2007
)
0.34
" Sixteen patients (62%) experienced motesanib-related adverse events, most commonly lethargy (n=6), diarrhoea (n=4), fatigue (n=3), headache (n=3), and nausea (n=3)."( Safety and pharmacokinetics of motesanib in combination with gemcitabine for the treatment of patients with solid tumours.
Lipton, L; McCoy, S; McGreivy, J; Price, TJ; Rosenthal, MA; Sun, YN, 2008
)
0.35
" The most common treatment-related adverse events were diarrhea (41%), fatigue (41%), hypothyroidism (29%), hypertension (27%), and anorexia (27%)."( Phase II study of safety and efficacy of motesanib in patients with progressive or symptomatic, advanced or metastatic medullary thyroid cancer.
Bastholt, L; Daumerie, C; Droz, JP; Elisei, R; Eschenberg, MJ; Jarzab, B; Juan, T; Locati, LD; Martins, RG; Pacini, F; Schlumberger, MJ; Sherman, SI; Stepan, DE; Sun, YN; Wirth, LJ, 2009
)
0.35
" The most common motesanib treatment-related grade 3 adverse events included hypertension (23%), fatigue (9%), and diarrhea (5%)."( Efficacy and safety of motesanib, an oral inhibitor of VEGF, PDGF, and Kit receptors, in patients with imatinib-resistant gastrointestinal stromal tumors.
Baker, L; Benjamin, RS; Blay, JY; Bui, BN; Duyster, J; Hartmann, JT; McCoy, S; Reichardt, P; Rosen, LS; Schöffski, P; Schuetze, S; Skubitz, K; Stepan, DE; Sun, YN; Van Oosterom, A, 2011
)
0.37

Pharmacokinetics

ExcerptReferenceRelevance
" Patients were randomized to receive a single oral dose of ketoconazole 400 mg either on day 8 (Sequence 1; n = 7) or day 15 (Sequence 2; n = 7), while pharmacokinetic samples were collected."( Effect of coadministration of ketoconazole, a strong CYP3A4 inhibitor, on pharmacokinetics and tolerability of motesanib diphosphate (AMG 706) in patients with advanced solid tumors.
Chen, L; Heath, EI; Ingram, M; Lorusso, P; Malburg, L; McGreivy, J; Melara, R; Pilat, MJ; Sun, YN; Wiezorek, J; Yan, L, 2008
)
0.35
" In conclusion, treatment with motesanib plus gemcitabine was well tolerated, with adverse event and pharmacokinetic profiles similar to that observed in monotherapy studies."( Safety and pharmacokinetics of motesanib in combination with gemcitabine for the treatment of patients with solid tumours.
Lipton, L; McCoy, S; McGreivy, J; Price, TJ; Rosenthal, MA; Sun, YN, 2008
)
0.35
" Motesanib concentrations were fitted to a 2-compartment population pharmacokinetic model."( Population pharmacokinetic/pharmacodynamic modeling for the time course of tumor shrinkage by motesanib in thyroid cancer patients.
Bruno, R; Claret, L; Kuchimanchi, M; Lu, JF; Melara, R; Sun, YN; Sutjandra, L, 2010
)
0.36

Compound-Compound Interactions

ExcerptReferenceRelevance
"The aim of this open-label phase 1b study was to assess the safety and pharmacokinetics of motesanib in combination with gemcitabine in patients with advanced solid tumours."( Safety and pharmacokinetics of motesanib in combination with gemcitabine for the treatment of patients with solid tumours.
Lipton, L; McCoy, S; McGreivy, J; Price, TJ; Rosenthal, MA; Sun, YN, 2008
)
0.35
"Treatment with motesanib was tolerable when combined with carboplatin/paclitaxel and/or panitumumab, with little effect on motesanib pharmacokinetics at the 125-mg once daily dose level."( Phase 1b study of motesanib, an oral angiogenesis inhibitor, in combination with carboplatin/paclitaxel and/or panitumumab for the treatment of advanced non-small cell lung cancer.
Blumenschein, GR; Gladish, G; McGreivy, J; O'Rourke, T; Parson, M; Reckamp, K; Sandler, A; Stephenson, GJ; Sun, YN; Ye, Y, 2010
)
0.36
"This phase Ib study evaluated the safety, pharmacokinetics, pharmacodynamics, and antitumor activity of AMG 102, a fully human monoclonal antibody against hepatocyte growth factor/scatter factor (HGF/SF), in combination with bevacizumab or motesanib in patients with advanced solid tumors."( A phase Ib study of AMG 102 in combination with bevacizumab or motesanib in patients with advanced solid tumors.
Anderson, A; Beaupre, DM; Deng, H; Leitch, IM; Oliner, KS; Park, DJ; Rosen, PJ; Shubhakar, P; Sweeney, CJ; Yee, LK; Zhu, M, 2010
)
0.36
"AMG 102 in combination with bevacizumab was well tolerated."( A phase Ib study of AMG 102 in combination with bevacizumab or motesanib in patients with advanced solid tumors.
Anderson, A; Beaupre, DM; Deng, H; Leitch, IM; Oliner, KS; Park, DJ; Rosen, PJ; Shubhakar, P; Sweeney, CJ; Yee, LK; Zhu, M, 2010
)
0.36
"This phase 1b study assessed the maximum tolerated dose (MTD), safety, and pharmacokinetics of motesanib (a small-molecule antagonist of VEGF receptors 1, 2, and 3; platelet-derived growth factor receptor; and Kit) administered once daily (QD) or twice daily (BID) in combination with erlotinib and gemcitabine in patients with solid tumors."( Safety and pharmacokinetics of motesanib in combination with gemcitabine and erlotinib for the treatment of solid tumors: a phase 1b study.
Adewoye, AH; Desai, J; Johnson, J; Kotasek, D; McCoy, S; Price, T; Siu, LL; Sun, YN; Tebbutt, N; Welch, S, 2011
)
0.37
"Patients received weekly intravenous gemcitabine (1000 mg/m2) and erlotinib (100 mg QD) alone (control cohort) or in combination with motesanib (50 mg QD, 75 mg BID, 125 mg QD, or 100 mg QD; cohorts 1-4); or erlotinib (150 mg QD) in combination with motesanib (100 or 125 mg QD; cohorts 5 and 6)."( Safety and pharmacokinetics of motesanib in combination with gemcitabine and erlotinib for the treatment of solid tumors: a phase 1b study.
Adewoye, AH; Desai, J; Johnson, J; Kotasek, D; McCoy, S; Price, T; Siu, LL; Sun, YN; Tebbutt, N; Welch, S, 2011
)
0.37
" The MTD of motesanib in combination with gemcitabine and erlotinib was 100 mg QD."( Safety and pharmacokinetics of motesanib in combination with gemcitabine and erlotinib for the treatment of solid tumors: a phase 1b study.
Adewoye, AH; Desai, J; Johnson, J; Kotasek, D; McCoy, S; Price, T; Siu, LL; Sun, YN; Tebbutt, N; Welch, S, 2011
)
0.37
" Motesanib 125 mg QD was tolerable only in combination with erlotinib alone."( Safety and pharmacokinetics of motesanib in combination with gemcitabine and erlotinib for the treatment of solid tumors: a phase 1b study.
Adewoye, AH; Desai, J; Johnson, J; Kotasek, D; McCoy, S; Price, T; Siu, LL; Sun, YN; Tebbutt, N; Welch, S, 2011
)
0.37
" We investigated the antitumor activity of motesanib, a selective antagonist of vascular endothelial growth factor receptors (VEGFR) 1, 2, and 3, platelet-derived growth factor receptor, and Kit, alone and combined with chemotherapy in five human NSCLC xenograft models (A549, Calu-6, NCI-H358, NCI-H1299, and NCI-H1650) containing diverse genetic mutations."( Antitumor activity of motesanib alone and in combination with cisplatin or docetaxel in multiple human non-small-cell lung cancer xenograft models.
Coxon, A; Kaufman, S; Polverino, A; Saffran, D; Schmidt, J; Starnes, C; Sweet, H; Wang, H; Weishuhn, D; Xu, M; Ziegler, B, 2012
)
0.38
" When combined with cisplatin, motesanib significantly inhibited the growth of Calu-6, NCI-H358, and NCI-H1650 tumor xenografts compared with either single agent alone (P < 0."( Antitumor activity of motesanib alone and in combination with cisplatin or docetaxel in multiple human non-small-cell lung cancer xenograft models.
Coxon, A; Kaufman, S; Polverino, A; Saffran, D; Schmidt, J; Starnes, C; Sweet, H; Wang, H; Weishuhn, D; Xu, M; Ziegler, B, 2012
)
0.38
"These data demonstrate that motesanib had antitumor activity against five different human NSCLC xenograft models containing diverse genetic mutations, and that it had enhanced activity when combined with cisplatin or docetaxel."( Antitumor activity of motesanib alone and in combination with cisplatin or docetaxel in multiple human non-small-cell lung cancer xenograft models.
Coxon, A; Kaufman, S; Polverino, A; Saffran, D; Schmidt, J; Starnes, C; Sweet, H; Wang, H; Weishuhn, D; Xu, M; Ziegler, B, 2012
)
0.38
" Moreover, imetelstat alone and in combination with trastuzumab reduced the CSC fraction and inhibited CSC functional ability, as shown by decreased mammosphere counts and invasive potential."( The telomerase inhibitor imetelstat alone, and in combination with trastuzumab, decreases the cancer stem cell population and self-renewal of HER2+ breast cancer cells.
Herbert, BS; Koziel, JE, 2015
)
0.42
"In the present study, we investigated the effects of motesanib (AMG 706), a multikinase inhibitor alone and in combination with DuP-697, an irreversible selective inhibitor of COX-2, on cell proliferation, angiogenesis, and apoptosis induction in a human colorectal cancer cell line (HT29)."( Effects of a Multikinase Inhibitor Motesanib (AMG 706) Alone and Combined with the Selective DuP-697 COX-2 Inhibitor on Colorectal Cancer Cells.
Altun, A; Ataseven, H; Kaya, TT; Koyluoglu, G; Turgut, NH, 2016
)
0.43

Bioavailability

ExcerptReferenceRelevance
" A novel nicotinamide, AMG 706, was identified as a potent, orally bioavailable inhibitor of the VEGFR1/Flt1, VEGFR2/kinase domain receptor/Flk-1, VEGFR3/Flt4, platelet-derived growth factor receptor, and Kit receptors in preclinical models."( AMG 706, an oral, multikinase inhibitor that selectively targets vascular endothelial growth factor, platelet-derived growth factor, and kit receptors, potently inhibits angiogenesis and induces regression in tumor xenografts.
Alva, G; Bready, J; Cattley, R; Chen, D; Coxon, A; DeMelfi, T; Diaz, Z; Estrada, J; Gan, Y; Kaufman, S; Kendall, R; Kumar, G; Meyer, J; Montestruque, S; Neervannan, S; Patel, V; Polverino, A; Radinsky, R; Starnes, C; Talvenheimo, J; Tasker, A; Wang, L, 2006
)
0.33
"AMG 706 is an investigational, orally bioavailable inhibitor of vascular endothelial growth factor receptors 1, 2, and 3, platelet-derived growth factor receptor, and stem-cell factor receptor."( Safety, pharmacokinetics, and efficacy of AMG 706, an oral multikinase inhibitor, in patients with advanced solid tumors.
Bass, MB; Benjamin, R; Chang, DD; Herbst, RS; Koutsoukos, A; Kurzrock, R; Mulay, M; Ng, C; Polverino, A; Purdom, M; Rosen, LS; Silverman, J; Sun, YN; Van Vugt, A; Wiezorek, JS; Xu, RY, 2007
)
0.34
" Oral bioavailability and preliminary evidence of activity make this compound an appealing choice for additional investigations."( Motesanib and advanced NSCLC: experiences and expectations.
Blumenschein, GR; Raghav, KP, 2011
)
0.37

Dosage Studied

ExcerptRelevanceReference
" The population pharmacokinetic/pharmacodynamic model provides a tool for predicting tumor response to the drug to support the dosing regimen of motesanib in thyroid cancer patients."( Population pharmacokinetic/pharmacodynamic modeling for the time course of tumor shrinkage by motesanib in thyroid cancer patients.
Bruno, R; Claret, L; Kuchimanchi, M; Lu, JF; Melara, R; Sun, YN; Sutjandra, L, 2010
)
0.36
" Dose-response simulations were performed in patients with differentiated thyroid cancer."( Development of a modeling framework to simulate efficacy endpoints for motesanib in patients with thyroid cancer.
Bruno, R; Claret, L; Lu, JF; Sun, YN, 2010
)
0.36
" On the other hand, the optimal combination and dosage of these drugs, selection of the apropriate biomarker and better understanding of the conflicting role of PDGFR and FGFR signaling in angiogenesis remain future challenges."( [Possibilities for inhibiting tumor-induced angiogenesis: results with multi-target tyrosine kinase inhibitors].
Döme, B; Török, S, 2012
)
0.38
[information is derived through text-mining from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Research

Studies (117)

TimeframeStudies, This Drug (%)All Drugs %
pre-19900 (0.00)18.7374
1990's0 (0.00)18.2507
2000's20 (17.09)29.6817
2010's82 (70.09)24.3611
2020's15 (12.82)2.80
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Study Types

Publication TypeThis drug (%)All Drugs (%)
Trials33 (28.21%)5.53%
Reviews26 (22.22%)6.00%
Case Studies3 (2.56%)4.05%
Observational0 (0.00%)0.25%
Other55 (47.01%)84.16%
[information is prepared from research data collected from National Library of Medicine (NLM), extracted Dec-2023]

Clinical Trials (31)

Trial Overview

TrialPhaseEnrollmentStudy TypeStart DateStatus
A Randomized Open-Label, Phase 3 Study to Evaluate Imetelstat (GRN163L) Versus Best Available Therapy (BAT) in Patients With Intermediate-2 or High-risk Myelofibrosis (MF) Relapsed / Refractory (R/R) to Janus Kinase (JAK) Inhibitor [NCT04576156]Phase 3320 participants (Anticipated)Interventional2021-04-12Recruiting
A Phase II Clinical and Biologic Study of AMG 706 and Octreotide in Patients With Low-Grade Neuroendocrine Tumors [NCT00427349]Phase 246 participants (Actual)Interventional2008-11-07Completed
An Open Label Treatment Extension Study of AMG 706 [NCT00360867]Phase 294 participants (Actual)Interventional2005-12-31Terminated(stopped due to Amgen decision)
A Randomized Phase II Study Of Imetelstat (GRN163L) In Combination With Paclitaxel (With Or Without Bevacizumab) in Patients With Locally Recurrent Or Metastatic Breast Cancer [NCT01256762]Phase 2166 participants (Actual)Interventional2010-11-30Completed
A Randomized Phase II Study of Imetelstat as Maintenance Therapy After Initial Induction Chemotherapy for Advance Non-small Cell Lung Cancer(NSCLC) [NCT01137968]Phase 2116 participants (Actual)Interventional2010-05-31Completed
An Open-label, Dose-finding Study to Evaluate the Safety and Pharmacokinetics (PK) of AMG 706 With Carboplatin/Paclitaxel, AMG 706 With Panitumumab and AMG 706 With Panitumumab and Carboplatin/Paclitaxel in the Treatment of Subjects With Advanced Non-Smal [NCT00094835]Phase 1/Phase 251 participants (Actual)Interventional2005-01-31Completed
A Phase 2, Multicenter, Open Label, Randomized Trial of AMG 706 or Bevacizumab in Combination With Paclitaxel and Carboplatin for Advanced Non-squamous Non-small Cell Lung Cancer [NCT00369070]Phase 2186 participants (Actual)Interventional2007-01-31Terminated
A Phase I Study Inhibiting Telomerase to Reverse Trastuzumab Resistance in HER2+ Breast Cancer [NCT01265927]Phase 110 participants (Actual)Interventional2011-01-31Completed
Phase I/II Trial of Motesanib in Combination With Ixabepilone and Capecitabine in Women With Locally Recurrent or Metastatic Breast Cancer [NCT01349088]Phase 1/Phase 20 participants (Actual)Interventional2013-12-31Withdrawn
A Phase II Evaluation of AMG 706 (IND # 79,697) in the Treatment of Persistent or Recurrent Epithelial Ovarian, Fallopian Tube, or Primary Peritoneal Cancer [NCT00574951]Phase 223 participants (Actual)Interventional2007-12-31Terminated(stopped due to Study was stopped for severe toxicity causing concern for patients)
A Randomized, Single-Blind, Multicenter Phase 2 Study to Evaluate the Activity of 2 Dose Levels of Imetelstat in Subjects With Intermediate-2 or High-Risk Myelofibrosis (MF) Relapsed/Refractory to Janus Kinase (JAK) Inhibitor [NCT02426086]Phase 2107 participants (Actual)Interventional2015-08-28Completed
A Phase I Study of GRN163L in Combination With Bortezomib and Dexamethasone in Patients With Relapsed or Refractory Multiple Myeloma [NCT00718601]Phase 140 participants (Anticipated)Interventional2008-07-31Completed
An Open-Label, Dose Escalation Study to Evaluate the Safety, Tolerability, and Pharmacokinetics of AMG 386 With AMG 706, AMG 386 With Bevacizumab, AMG 386 With Sorafenib, and AMG 386 With Sunitinib in Adult Patients With Advanced Solid Tumors [NCT00861419]Phase 188 participants (Anticipated)Interventional2005-12-31Completed
A Pilot Study of Imetelstat Given Intravenously on Day 1 and 8 of a 21 Day Schedule Alone and With Standard 13-Cis-Retinoic Acid in Children With Recurrent and/or Refractory Neuroblastoma [NCT01916187]Phase 10 participants (Actual)Interventional2013-07-30Withdrawn(stopped due to drug company withdrew support following re-examination of benefit-risk assessment for the investigational use of imetelstat in this population)
A Phase II Study of Imetelstat (GRN163L, NSC# 754228) in Children With Relapsed or Refractory Solid Tumors [NCT02011126]Phase 20 participants (Actual)Interventional2014-06-30Withdrawn(stopped due to IND no longer available.)
A Phase 1 Sequential Cohort, Dose Escalation Trial to Determine the Safety, Tolerability, and Maximum Tolerated Dose of GRN163L in Patients With Refractory or Relapsed Multiple Myeloma [NCT00594126]Phase 120 participants (Actual)Interventional2007-11-30Completed
A Phase I Study of GRN163L in Combination With Paclitaxel and Carboplatin in Patients With Advanced or Metastatic Non-Small Cell Lung Cancer [NCT00510445]Phase 127 participants (Actual)Interventional2007-07-31Completed
A Phase II Trial to Evaluate the Activity of Imetelstat (GRN163L) in Patients With Essential Thrombocythemia or Polycythemia Vera Who Require Cytoreduction and Have Failed or Are Intolerant to Previous Therapy, or Who Refuse Standard Therapy [NCT01243073]Phase 220 participants (Actual)Interventional2010-12-31Completed
A Phase II Trial to Determine the Effect of Imetelstat (GRN163L) on Patients With Previously Treated Multiple Myeloma [NCT01242930]Phase 213 participants (Actual)Interventional2010-11-30Completed
An Open-Label, Randomized, Phase 1b Study Evaluating the Effect of Different Doses of AMG 706 on the Gallbladder in Subjects With Advanced Solid Tumors [NCT00448786]Phase 149 participants (Actual)Interventional2007-02-28Completed
Expanded Access Treatment With Imetelstat For Adult Participants With Very Low, Low, or Intermediate Risk Myelodysplastic Syndromes (MDS) Who Are Transfusion-Dependent And Have Failed to Respond or Have Lost Response or Are Ineligible For Erythropoiesis-S [NCT05937568]0 participants Expanded AccessAvailable
A Pilot Open-Label Study of the Efficacy and Safety of Imetelstat (GRN163L) in Myelofibrosis and Other Myeloid Malignancies [NCT01731951]Phase 280 participants (Actual)Interventional2012-10-29Completed
A Phase Ib, Open-Label, Sequential, Dose-Finding, Study of AMG 706 in Combination With Gemcitabine to Treat Subjects With Solid Tumors [NCT00324597]Phase 118 participants (Anticipated)Interventional2005-10-31Active, not recruiting
A Phase I, Sequential Cohort, Dose Escalation Trial to Determine the Safety, Tolerability, and MTD of GRN163L in Patients With Refractory or Relapsed Solid Tumor Malignancies [NCT00310895]Phase 185 participants (Anticipated)Interventional2006-03-31Completed
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 [NCT05371964]Phase 141 participants (Anticipated)Interventional2022-05-04Recruiting
A Randomized Phase 2 Trial of Double-Blind, Placebo Controlled AMG 706 in Combination With Paclitaxel, or Open-Label Bevacizumab in Combination With Paclitaxel, as First Line Therapy in Women With HER2 Negative Locally Recurrent or Metastatic Breast Cance [NCT00356681]Phase 2282 participants (Actual)Interventional2006-12-31Terminated(stopped due to Sponsor decision to close study)
A Phase II Study Evaluating the Efficacy and Safety of Imetelstat in Patients With HR Myelodysplastic Syndromes or AML Failing HMA-based Therapy [NCT05583552]Phase 246 participants (Anticipated)Interventional2023-06-05Recruiting
A Phase 1 Study of Imetelstat, a Telomerase Inhibitor, in Children With Refractory or Recurrent Solid Tumors and Lymphomas [NCT01568632]Phase 10 participants (Actual)Interventional2012-03-31Withdrawn
A Phase 1 Study of Imetelstat, a Telomerase Inhibitor, in Children With Refractory or Recurrent Solid Tumors and Lymphomas [NCT01273090]Phase 134 participants (Actual)Interventional2011-05-31Completed
A Molecular Biology and Phase II Study of Imetelstat (GRN163L) in Children With Recurrent High-Grade Glioma, Ependymoma and Diffuse Intrinsic Pontine Glioma [NCT01836549]Phase 243 participants (Actual)Interventional2013-03-31Terminated(stopped due to Due to several intracranial hemorrhages and recommendation by the PBTC DSMB.)
A Study to Evaluate Imetelstat (GRN163L) in Transfusion-Dependent Subjects With IPSS Low or Intermediate-1 Risk Myelodysplastic Syndrome (MDS) That is Relapsed/Refractory to Erythropoiesis-Stimulating Agent (ESA) Treatment [NCT02598661]Phase 2/Phase 3289 participants (Actual)Interventional2015-11-24Active, not recruiting
[information is prepared from clinicaltrials.gov, extracted Sep-2024]

Trial Outcomes

TrialOutcome
NCT00094835 (11) [back to overview]Maximum Observed Plasma Concentration of Motesanib (Cmax) in Cycle 1
NCT00094835 (11) [back to overview]Area Under the Plasma Concentration-time Curve for Motesanib in Cycle 1
NCT00094835 (11) [back to overview]Area Under the Plasma Concentration-time Curve From Time 0 to 24 Hours Post-dose for Motesanib in Cycle 2
NCT00094835 (11) [back to overview]Estimated Terminal-phase Half-life (t1/2,z) of Motesanib in Cycle 1
NCT00094835 (11) [back to overview]Estimated Terminal-phase Half-life (t1/2,z) of Motesanib in Cycle 2
NCT00094835 (11) [back to overview]Maximum Observed Plasma Concentration of Motesanib (Cmax) in Cycle 2
NCT00094835 (11) [back to overview]Percentage of Participants With an Overall Objective Response
NCT00094835 (11) [back to overview]Time to Maximum Plasma Concentration of Motesanib (Tmax) for Cycle 1
NCT00094835 (11) [back to overview]Time to Maximum Plasma Concentration of Motesanib (Tmax) in Cycle 2
NCT00094835 (11) [back to overview]Trough Plasma Concentration at 24 Hours Post-dose (C24) for Motesanib in Cycle 1
NCT00094835 (11) [back to overview]Trough Plasma Concentration at 24 Hours Post-dose (C24) for Motesanib in Cycle 2
NCT00427349 (3) [back to overview]Objective Response Rate
NCT00427349 (3) [back to overview]Overall Survival
NCT00427349 (3) [back to overview]Four-month Progression-free Survival Rate
NCT00574951 (3) [back to overview]Duration of Overall Survival (OS)
NCT00574951 (3) [back to overview]Incidence of Adverse Effects (Grade 3 or Higher) as Assessed by Common Terminology Criteria for Adverse Events Version 3.0
NCT00574951 (3) [back to overview]Number of Patients With Objective Tumor Response Rate (Complete Response [CR] or Partial Response [PR]) Using RECIST Version 1.0
NCT01731951 (12) [back to overview]Blastic MF/AML Participants: Percentage of Participants With Overall Response
NCT01731951 (12) [back to overview]MDS Participants: Duration of Response Per IWG Criteria
NCT01731951 (12) [back to overview]MDS Participants: Number of Participants With Transfusion Independence (HI by Erythroid Response) Per IWG Criteria
NCT01731951 (12) [back to overview]MDS Participants: Percentage of Participants With Overall Response (Hematologic Improvement [HI] or PR or CR) Per IWG Criteria
NCT01731951 (12) [back to overview]MDS Participants: Time to Response
NCT01731951 (12) [back to overview]MF and Blastic MF/AML Participants: Number of Participants With Transfusion Independence (CI by Anemia Response) Per IWG-MRT
NCT01731951 (12) [back to overview]MF Participants: Duration of Response (DOR) Per IWG-MRT Criteria
NCT01731951 (12) [back to overview]MF Participants: Percentage of Participants With Overall Response (OR) - (Clinical Improvement[CI] or Partial Remission[PR] or Complete Remission[CR]) Per International Working Group - Myeloproliferative Neoplasms Research and Treatment (IWG-MRT) Criteria
NCT01731951 (12) [back to overview]MF Participants: Time to Response
NCT01731951 (12) [back to overview]Overall Survival (OS)
NCT01731951 (12) [back to overview]Percentage of Participants With Treatment Emergent Adverse Events (TEAEs), Grade >= 3 TEAEs and Treatment Related Adverse Events
NCT01731951 (12) [back to overview]Number of Participants With Spleen Response Per IWG-MRT Criteria
NCT01836549 (5) [back to overview]Number of Participants With Telomerase Inhibition
NCT01836549 (5) [back to overview]Numver of Patients With Telomerase-positive Archival Tumors Who Demonstrate at Least 50% Reduction
NCT01836549 (5) [back to overview]Phase II: Stratum-specific Objective Response (CR+PR) Rate
NCT01836549 (5) [back to overview]Stratum-specific Progression-free Survival (PFS) (Phase II)
NCT01836549 (5) [back to overview]Number of Patients With Telomerase Expression Data by Detection of hTERT mRNA and TERC RNA Levels by qRT-PCR and Telomerase Activity by TRAP in Archival Tumor Tissue and to Explore Association of Telomerase Positivity With Objective Response and PFS
NCT02426086 (22) [back to overview]Area Under the Plasma Concentration-Time Curve From Time Zero to 24 Hours (AUC 0-24) of Imetelstat
NCT02426086 (22) [back to overview]Area Under the Plasma Concentration-Time Profile From Time Zero to Infinity (AUC0-inf) of Imetelstat
NCT02426086 (22) [back to overview]Duration of Response (PR/CI/RWCI) as Per IWG-MRT Criteria
NCT02426086 (22) [back to overview]Elimination Half-Life (t1/2) of Imetelstat
NCT02426086 (22) [back to overview]Maximum Observed Plasma Concentration (Cmax) of Imetelstat
NCT02426086 (22) [back to overview]Number of Participants With Treatment-emergent Adverse Events (TEAEs)
NCT02426086 (22) [back to overview]Overall Survival
NCT02426086 (22) [back to overview]Patient's Global Impression of Change (PGIC)
NCT02426086 (22) [back to overview]Percentage of Participants With Clinical Improvement (CI) Per Modified 2013 IWG-MRT Criteria
NCT02426086 (22) [back to overview]Percentage of Participants With Clinical Response Per Modified 2013 IWG-MRT
NCT02426086 (22) [back to overview]Percentage of Participants With Clinically Meaningful Improvement in European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-30 (QLQ-C30): Global Health Status
NCT02426086 (22) [back to overview]Percentage of Participants With Symptom Response
NCT02426086 (22) [back to overview]Time to Reach Maximum Observed Plasma Concentration (Tmax) of Imetelstat
NCT02426086 (22) [back to overview]Total Systemic Clearance (CL) of Imetelstat
NCT02426086 (22) [back to overview]Volume of Distribution (Vd) of Imetelstat
NCT02426086 (22) [back to overview]EuroQol 5 Dimension 5 Level (EQ-5D-5L): Utility Score and Visual Analog Scale (VAS)
NCT02426086 (22) [back to overview]Percentage of Participants With Anemia Response Per Modified 2013 IWG-MRT Criteria
NCT02426086 (22) [back to overview]Percentage of Participants With Clinically Meaningful Improvement in Brief Pain Inventory (BPI)
NCT02426086 (22) [back to overview]Percentage of Participants With Spleen Response Per Modified 2013 IWG-MRT Criteria
NCT02426086 (22) [back to overview]Percentage of Participants With Overall Response as Per Modified 2013 International Working Group - Myeloproliferative Neoplasms Research and Treatment (IWG-MRT) Criteria
NCT02426086 (22) [back to overview]Percentage of Participants With Symptoms Response Per Modified 2013 IWG-MRT Criteria
NCT02426086 (22) [back to overview]Percentage of Participants With Spleen Response

Maximum Observed Plasma Concentration of Motesanib (Cmax) in Cycle 1

The maximal observed plasma concentration of motesanib after a single dose dose in Cycle 1. For the 75 mg BID cohorts, Cmax is reported for the first daily dose. (NCT00094835)
Timeframe: Cycle 1, Day 3 at predose, 15 and 30 min, and at 1, 2, 4, 6, 10 (QD cohorts only), and 24 hours post-dose.

Interventionng/mL (Mean)
Paclitaxel/Carboplatin + Motesanib 50 mg QD158
Paclitaxel/Carboplatin + Motesanib 125 mg QD525
Paclitaxel/Carboplatin + Motesanib 75 mg BID448
Panitumumab + Motesanib 50 mg QD328
Panitumumab + Motesanib 125 mg QD444
Panitumumab + Motesanib 75 mg BID198
Panitumumab + Paclitaxel/Carboplatin + Motesanib 125 mg QD360

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Area Under the Plasma Concentration-time Curve for Motesanib in Cycle 1

Area under the plasma concentration-time curve for motesanib in Cycle 1 calculated using the using the linear/log trapezoidal method. AUC from time zero to infinity (AUC0-inf) is reported for the 50 and 125 mg QD cohorts and AUC from time 0 to 24 hours post-dose (AUC0-24) is reported for the 75 mg BID cohort, where AUC0-24 is the sum of AUC0-12 for the first and second daily dose. (NCT00094835)
Timeframe: Cycle 1, Day 3 at predose, 15 and 30 minutes, and at 1, 2, 4, 6, 10 (QD cohorts only), and 24 hours post-dose.

Interventionμg*hr/mL (Mean)
Paclitaxel/Carboplatin + Motesanib 50 mg QD0.971
Paclitaxel/Carboplatin + Motesanib 125 mg QD3.21
Paclitaxel/Carboplatin + Motesanib 75 mg BID2.91
Panitumumab + Motesanib 50 mg QD1.74
Panitumumab + Motesanib 125 mg QD3.23
Panitumumab + Motesanib 75 mg BID2.04

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Area Under the Plasma Concentration-time Curve From Time 0 to 24 Hours Post-dose for Motesanib in Cycle 2

Area under the plasma concentration-time curve from time 0 to 24 hours post-dose (AUC0-24) for motesanib in Cycle 2 calculated using the using the linear/log trapezoidal method. For the 75 mg BID cohort AUC0-24 is the sum of AUC0-12 for the first and second daily dose. (NCT00094835)
Timeframe: Cycle 2, Day 1 at predose, 15 and 30 minutes, and at 1, 2, 4, 6, 10 (QD cohorts only), and 24 hours post-dose.

Interventionμg*hr/mL (Mean)
Paclitaxel/Carboplatin + Motesanib 125 mg QD4.50
Paclitaxel/Carboplatin + Motesanib 75 mg BID3.11
Panitumumab + Motesanib 50 mg QD1.26
Panitumumab + Motesanib 125 mg QD3.92
Panitumumab + Paclitaxel/Carboplatin + Motesanib 125 mg QD3.16

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Estimated Terminal-phase Half-life (t1/2,z) of Motesanib in Cycle 1

The terminal-phase elimination half-life (t1/2,z) of motesanib was calculated as ln(2)/λz. The terminal elimination rate constant (λz) was determined by linear regression of the natural logarithms of at least the last 3 measurable concentrations during the terminal phase. For the 75 mg BID cohorts, t1/2,z is reported for the first daily dose. (NCT00094835)
Timeframe: Cycle 1, Day 3 at predose, 15 and 30 min, and at 1, 2, 4, 6, 10 (QD cohorts only), and 24 hours postdose.

Interventionhours (Mean)
Paclitaxel/Carboplatin + Motesanib 50 mg QD7.34
Paclitaxel/Carboplatin + Motesanib 125 mg QD5.33
Paclitaxel/Carboplatin + Motesanib 75 mg BID5.77
Panitumumab + Motesanib 50 mg QD6.47
Panitumumab + Motesanib 125 mg QD7.57
Panitumumab + Motesanib 75 mg BID8.28

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Estimated Terminal-phase Half-life (t1/2,z) of Motesanib in Cycle 2

The terminal-phase elimination half-life (t1/2,z) of motesanib was calculated as ln(2)/λz. The terminal elimination rate constant (λz) was determined by linear regression of the natural logarithms of at least the last 3 measurable concentrations during the terminal phase. For the 75 mg BID cohorts, t1/2,z is reported for the first daily dose. (NCT00094835)
Timeframe: Cycle 2, Day 1 at predose, 15 and 30 min, and at 1, 2, 4, 6, 10 (QD cohorts only), and 24 hours post-dose.

Interventionhours (Mean)
Paclitaxel/Carboplatin + Motesanib 125 mg QD6.41
Paclitaxel/Carboplatin + Motesanib 75 mg BID6.36
Panitumumab + Motesanib 50 mg QD7.08
Panitumumab + Motesanib 125 mg QD4.90

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Maximum Observed Plasma Concentration of Motesanib (Cmax) in Cycle 2

The maximal observed plasma concentration of motesanib in Cycle 2, after multiple doses. For the 75 mg BID cohorts, Cmax is reported for the first daily dose. (NCT00094835)
Timeframe: Cycle 2, Day 1 at predose, 15 and 30 min, and at 1, 2, 4, 6, 10 (QD cohorts only), and 24 hours post-dose.

Interventionng/mL (Mean)
Paclitaxel/Carboplatin + Motesanib 50 mg QD148
Paclitaxel/Carboplatin + Motesanib 125 mg QD748
Paclitaxel/Carboplatin + Motesanib 75 mg BID390
Panitumumab + Motesanib 50 mg QD265
Panitumumab + Motesanib 125 mg QD672
Panitumumab + Motesanib 75 mg BID242
Panitumumab + Paclitaxel/Carboplatin + Motesanib 125 mg QD651

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Percentage of Participants With an Overall Objective Response

Confirmed objective tumor response defined as a complete response (CR) or partial response (PR) using modified Response Evaluation Criteria in Solid Tumors (RECIST) version 1.0. Tumor response was evaluated by computed tomography (CT) scan or magnetic resonance imaging (MRI). Responding disease (CR or PR) was confirmed no less than 4 weeks after the criteria for response were first met. A complete response defined as the disappearance of all target lesions and all non-target lesions, no new lesions and normalization of tumor marker level. Partial response defined as either the disappearance of all target lesions and the persistence of one or more non-target lesion(s) or/and maintenance of tumor marker level above the normal limits, or, at least a 30% decrease in the sum of the longest diamer (LD) of target lesions, taking as reference the baseline sum LD and no new lesions and/or unequivocal progression of existing non-target lesions. (NCT00094835)
Timeframe: After 9 weeks of treatment (at the end of Cycle 3)

InterventionPercentage of participants (Number)
Paclitaxel/Carboplatin + Motesanib 50 mg QD33
Paclitaxel/Carboplatin + Motesanib 125 mg QD18
Paclitaxel/Carboplatin + Motesanib 75 mg BID0
Panitumumab + Motesanib 50 mg QD0
Panitumumab + Motesanib 125 mg QD0
Panitumumab + Motesanib 75 mg BID0
Panitumumab + Paclitaxel/Carboplatin + Motesanib 125 mg QD17

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Time to Maximum Plasma Concentration of Motesanib (Tmax) for Cycle 1

The time after dosing that the maximal plasma concentration of motesanib was observed in Cycle 1. For the 75 mg BID cohorts, Tmax is reported for the first daily dose. (NCT00094835)
Timeframe: Cycle 1, Day 3 at predose, 15 and 30 minutes, and at 1, 2, 4, 6, 10 (QD cohorts only), and 24 hours post-dose.

Interventionhours (Median)
Paclitaxel/Carboplatin + Motesanib 50 mg QD0.75
Paclitaxel/Carboplatin + Motesanib 125 mg QD1.0
Paclitaxel/Carboplatin + Motesanib 75 mg BID0.75
Panitumumab + Motesanib 50 mg QD1.5
Panitumumab + Motesanib 125 mg QD1.0
Panitumumab + Motesanib 75 mg BID0.58
Panitumumab + Paclitaxel/Carboplatin + Motesanib 125 mg QD1.0

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Time to Maximum Plasma Concentration of Motesanib (Tmax) in Cycle 2

The time after dosing that the maximal plasma concentration of motesanib was observed in Cycle 2. For the 75 mg BID cohorts, Tmax is reported for the first daily dose. (NCT00094835)
Timeframe: Cycle 2, Day 1 at predose, 15 and 30 min, and at 1, 2, 4, 6, 10 (QD cohorts only), and 24 hours post-dose.

Interventionhours (Median)
Paclitaxel/Carboplatin + Motesanib 50 mg QD1.5
Paclitaxel/Carboplatin + Motesanib 125 mg QD1.0
Paclitaxel/Carboplatin + Motesanib 75 mg BID0.63
Panitumumab + Motesanib 50 mg QD1.0
Panitumumab + Motesanib 125 mg QD0.75
Panitumumab + Motesanib 75 mg BID1.0
Panitumumab + Paclitaxel/Carboplatin + Motesanib 125 mg QD2.0

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Trough Plasma Concentration at 24 Hours Post-dose (C24) for Motesanib in Cycle 1

The trough plasma concentration for motesanib at 24 hours postdose in Cycle 1. For the 75 BID cohort, C24 is the observed concentration at 24 hours (ie, after the second daily dose). (NCT00094835)
Timeframe: Cycle 1, Day 3, 24 hours post-dose

Interventionng/mL (Mean)
Paclitaxel/Carboplatin + Motesanib 50 mg QD9.12
Paclitaxel/Carboplatin + Motesanib 125 mg QD26.5
Paclitaxel/Carboplatin + Motesanib 75 mg BID56.7
Panitumumab + Motesanib 50 mg QD14.0
Panitumumab + Motesanib 125 mg QD32.5
Panitumumab + Motesanib 75 mg BID56.8

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Trough Plasma Concentration at 24 Hours Post-dose (C24) for Motesanib in Cycle 2

The trough plasma concentration for motesanib at 24 hours postdose in Cycle 2. For the 75 BID cohort, C24 is the observed concentration at 24 hours (ie, after the second daily dose). (NCT00094835)
Timeframe: Cycle 2, Day 1, 24 hours post-dose

Interventionng/mL (Mean)
Paclitaxel/Carboplatin + Motesanib 125 mg QD43.4
Paclitaxel/Carboplatin + Motesanib 75 mg BID45.4
Panitumumab + Motesanib 50 mg QD10.4
Panitumumab + Motesanib 125 mg QD61.1
Panitumumab + Paclitaxel/Carboplatin + Motesanib 125 mg QD45.1

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Objective Response Rate

Tumor response was evaluated using the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.0. Objective response rate is defined as number of patients with complete response (CR) or partial response (PR) divided by the total number of analyzable patients. CR is defined as complete disappearance of all tumor lesions, and partial response is defined as at least a 30% decrease in the sum of the longest diameters of target lesions, taking as reference the baseline sum longest diameter. (NCT00427349)
Timeframe: assessed every 8 weeks while on treatment, and frequency of tumor measurements during follow-up were determined by the treating physician, assessed up to 5 years

Interventionpercentage of participants (Number)
AMG 706+Octreotide13.6

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Overall Survival

Overall survival (OS) is defined as the time from registration until death (event), or censored at last date known alive. OS was estimated using the Kaplan-Meier method , with 95% confidence intervals calculated using Greenwood's formula (NCT00427349)
Timeframe: assessed every 3 months if patient is < 2 years from study entry, then every 6 months up to 5 years

Interventionmonths (Median)
AMG 706+Octreotide27.5

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Four-month Progression-free Survival Rate

Four-month progression-free survival (PFS) rate is defined as number of patients who are still progression free at 4 months after study entry divided by number of eligible and treated patients enrolled to the study. Progression is evaluated using the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.0, and defined as at least a 20% increase in the sum of the longest diameters of target lesions, taking as reference the smallest sum longest diameter recorded since the baseline measurements, or the appearance of one or more new lesion(s), or unequivocal progression of existing non-target lesions. (NCT00427349)
Timeframe: assessed every 4 weeks while on treatment and at three months post-treatment for participants treated for one cycle, up to month four

Interventionpercentage of participants (Number)
AMG 706+Octreotide78.5

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Duration of Overall Survival (OS)

Overall survival is defined as the duration of time from study entry to time of death or the date of last contact. (NCT00574951)
Timeframe: Every cycle during treatment, then every 3 months for the first 2 years, then every six months for the next three years and then annually for the next 5 years.

Interventionmonths (Median)
AMG 70613.1

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Incidence of Adverse Effects (Grade 3 or Higher) as Assessed by Common Terminology Criteria for Adverse Events Version 3.0

Number of participants with a maximum grade of 3 or higher during the treatment period. (NCT00574951)
Timeframe: Assessed every cycle while on treatment, 30 days after the last cycle of treatment

InterventionParticipants (Count of Participants)
CardiacGastrointestinalHepatobiliaryMetabolicMuskuloskeletalOther NeurologicalPainPulmonaryDeath, Not CTC coded
AMG 706251414111

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Number of Patients With Objective Tumor Response Rate (Complete Response [CR] or Partial Response [PR]) Using RECIST Version 1.0

RECIST 1.0 defines complete response as the disappearance of all target lesions and non-target lesions and no evidence of new lesions documented by two disease assessments at least 4 weeks apart. Partial response is defined as at least a 30% decrease in the sum of longest dimensions (LD) of all target measurable lesions taking as reference the baseline sum of LD. There can be no unequivocal progression of non-target lesions and no new lesions. Documentation by two disease assessments at least 4 weeks apart is required. In the case where the ONLY target lesion is a solitary pelvic mass measured by physical exam, which is not radiographically measurable, a 50% decrease in the LD is required. These patients will have their response classified according to the definitions stated above. Complete and partial responses are included in the objective tumor response rate. (NCT00574951)
Timeframe: CT scan or MRI every other cycle for the first 6 months; then every 3 months thereafter; and at any other time if clinically indicated up to 5 years.

InterventionParticipants (Count of Participants)
Partial responseComplete response
AMG 70610

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Blastic MF/AML Participants: Percentage of Participants With Overall Response

For this pilot study, overall response was defined as achievement of a leukemic response (i.e. a clinically meaningful reduction in Blast cells). This was quantified as <5% peripheral blood and bone marrow blasts % that lasts for at least two months. Data is reported separately for this arm where response was assessed by this specific criterion. (NCT01731951)
Timeframe: Up to first 9 cycles of treatment (each cycle was of 28 days for Arm D)

Interventionpercentage of participants (Number)
Arm D: Imetelstat 9.4 mg/kg (Blast-phase MF/Acute Myeloid Leukemia)0

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MDS Participants: Duration of Response Per IWG Criteria

DOR: time of initial response (CR/PR/HI) until documented PD/death whichever occurs first. If no PD/death occurs DOR is censored at last disease evaluation date for responders. Data reported separately for arm assessed per IWG. Kaplan-Meier method was used. (NCT01731951)
Timeframe: From the time of initial response (CR/PR/HI) until documented disease progression or death whichever occurs first (Up to approximately 5.7 years)

Interventionmonths (Median)
Arm G: Imetelstat 7.5 - 9.4 mg/kg (MDS/MPN or MDS With Spliceosome Mutations or Ring Sideroblasts)NA

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MDS Participants: Number of Participants With Transfusion Independence (HI by Erythroid Response) Per IWG Criteria

Transfusion dependency was defined by a history of at least 2 units of red blood cell transfusions in the last month for a hemoglobin level of less than 85 g/L that was not associated with clinically overt bleeding. A participant who was transfusion dependent at baseline was considered transfusion independent if the participant met either of the following conditions: Received no more than 1 unit of red blood cell transfusions in a rolling time interval of 30 days or more, and had a hemoglobin level increase over baseline more than 2 g/dL if participant baseline hemoglobin level was less than 85 g/L and received no transfusion. HI responses included: 1) Erythroid: Hgb increase ≥1.5 g/dL, Relevant reduction of RBC units transfusions by absolute number of >=4 RBC transfusions/8 week compared with pretreatment transfusion number in previous 8 week. Only RBC transfusions given for Hgb of ≤9.0 g/dL. Data is reported separately for arm assessed as per IWG criteria. (NCT01731951)
Timeframe: Up to approximately 5.7 years

InterventionParticipants (Count of Participants)
Arm G: Imetelstat 7.5 - 9.4 mg/kg (MDS/MPN or MDS With Spliceosome Mutations or Ring Sideroblasts)3

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MDS Participants: Percentage of Participants With Overall Response (Hematologic Improvement [HI] or PR or CR) Per IWG Criteria

OR: HI/PR/CR per IWG. CR: BM:≤5% myeloblasts (all cell lines normal maturation), Peripheral blood:Hgb ≥11g/dL, PLTs ≥100x10^9/L, Neutrophils ≥1.0x10^9/L, Blasts 0%. PR: All CR criteria if abnormal before treatment except- BM blasts decreased ≥50% over pretreatment but still >5%, Cellularity, morphology not relevant. HI responses:1) Erythroid: Hgb increase ≥1.5 g/dL, Relevant reduction of red blood cell(RBC) units transfusions by absolute ≥4 RBC transfusions/8 week (wk) compared with pretreatment transfusion number in previous 8 wk. Only RBC transfusions given for Hgb of ≤9.0 g/dL.2)PLTs:Absolute increase ≥30x10^9/L starting >20x10^9/L PLTs; Increase from <20x10^9/L to >20x10^9/L and by ≥100%; 3)Neutrophil: ≥100% increase, absolute increase >0.5x10^9/L; 4)Progression/relapse after HI:≥1 of following:≥50% decrement from maximum response levels in granulocytes/PLTs, Reduction in Hgb ≥1.5 g/dL,Transfusion dependence. Data is reported separately for arm whose response was assessed per IWG. (NCT01731951)
Timeframe: Up to first 9 cycles of treatment (each cycle was of 28 days for Arm G)

Interventionpercentage of participants (Number)
Arm G: Imetelstat 7.5 - 9.4 mg/kg (MDS/MPN or MDS With Spliceosome Mutations or Ring Sideroblasts)33.3

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MDS Participants: Time to Response

Time to response was defined as the duration from study Day 1 to the earliest date that a response is first documented. Response was defined as HI, PR or CR per IWG criteria. Data for time to response is reported as per criteria of response assessment. (NCT01731951)
Timeframe: From study Day 1 to the earliest date that a response was first documented (Up to approximately 5.7 years)

Interventionmonths (Median)
Arm G: Imetelstat 7.5 - 9.4 mg/kg (MDS/MPN or MDS With Spliceosome Mutations or Ring Sideroblasts)3.7

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MF and Blastic MF/AML Participants: Number of Participants With Transfusion Independence (CI by Anemia Response) Per IWG-MRT

Transfusion dependency was defined by a history of at least 2 units of red blood cell transfusions in the last month for a hemoglobin level of less than 85 g/L that was not associated with clinically overt bleeding. A participant who was transfusion dependent at baseline was considered transfusion independent if the participant met either of the following conditions: Received no more than 1 unit of red blood cell transfusions in a rolling time interval of 30 days or more, and had a hemoglobin level increase over baseline more than 2 g/dL if participant baseline hemoglobin level was less than 85 g/L and received no transfusion. Anemia response per IWG-MRT Criteria- Transfusion-independent participants: a ≥20 g/L increase in hemoglobin level. Transfusion-dependent participants: becoming transfusion-independent. Data is reported separately for arms assessed as per the IWG-MRT criteria. (NCT01731951)
Timeframe: Up to approximately 5.7 years

InterventionParticipants (Count of Participants)
Arm A: Imetelstat 9.4 mg/kg (MF)1
Arm B: Imetelstat 9.4 mg/kg as Induction + Maintenance (MF)0
Arm D: Imetelstat 9.4 mg/kg (Blast-phase MF/Acute Myeloid Leukemia)0
Arm E: Imetelstat 7.5 - 9.4 mg/kg (MF [With Spliceosome Mutation or Ring Sideroblasts])0
Arm F: Imetelstat 7.5 - 9.4 mg/kg (MF [Without Spliceosome Mutation and Ring Sideroblasts])3

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MF Participants: Duration of Response (DOR) Per IWG-MRT Criteria

DOR measured from time of initial response (CR/PR/CI) until documented PD or death whichever occurs first. If no PD/death occurs DOR is censored at last disease evaluation date for responders. CR:BM: <5%blasts; ≤Grade 1 MF, AND Peripheral blood:Hb≥100 g/L and = 5 cm below LCM) or increase in severity of anemia, thrombocytopenia or neutropenia. Data is reported separately for arms whose DOR was assessed per IWG-MRT. Kaplan-Meier method was used. (NCT01731951)
Timeframe: From time of initial response until documented disease progression or death whichever occurs first (Up to approximately 5.7 years)

Interventionmonths (Median)
Arm A: Imetelstat 9.4 mg/kg (MF)24.36
Arm B: Imetelstat 9.4 mg/kg as Induction + Maintenance (MF)NA
Arm F: Imetelstat 7.5 - 9.4 mg/kg (MF [Without Spliceosome Mutation and Ring Sideroblasts])35.52

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MF Participants: Percentage of Participants With Overall Response (OR) - (Clinical Improvement[CI] or Partial Remission[PR] or Complete Remission[CR]) Per International Working Group - Myeloproliferative Neoplasms Research and Treatment (IWG-MRT) Criteria

OR:CI/PR/CR per IWG-MRT. CR:Bone marrow (BM):<5% blasts;≤Grade 1 MF, AND Peripheral blood:Hemoglobin (Hb) ≥100 g/liter (g/L) and NCT01731951)
Timeframe: Up to first 9 cycles of treatment (each cycle was of 21 days for Arms A and B and 28 days for Arms E and F)

Interventionpercentage of participants (Number)
Arm A: Imetelstat 9.4 mg/kg (MF)36.84
Arm B: Imetelstat 9.4 mg/kg as Induction + Maintenance (MF)35.7
Arm E: Imetelstat 7.5 - 9.4 mg/kg (MF [With Spliceosome Mutation or Ring Sideroblasts])0
Arm F: Imetelstat 7.5 - 9.4 mg/kg (MF [Without Spliceosome Mutation and Ring Sideroblasts])33.3

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MF Participants: Time to Response

Time to response was defined as the duration from study Day 1 to the earliest date that a response is first documented. The response CI/CR/PR was assessed by IWG-MRT criteria. (NCT01731951)
Timeframe: From study Day 1 to the earliest date that a response was first documented (Up to approximately 5.7 years)

Interventionmonths (Median)
Arm A: Imetelstat 9.4 mg/kg (MF)2.1
Arm B: Imetelstat 9.4 mg/kg as Induction + Maintenance (MF)1.4
Arm F: Imetelstat 7.5 - 9.4 mg/kg (MF [Without Spliceosome Mutation and Ring Sideroblasts])2.9

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Overall Survival (OS)

OS was defined as the as the interval from Study Day 1 to the date of death from any cause. Survival time of living participants was censored on the last date a participant is known to be alive or lost to follow-up. Overall Survival was estimated by Kaplan-Meier method. (NCT01731951)
Timeframe: From Study Day 1 to the date of death from any cause (Up to approximately 5.7 years)

Interventionmonths (Median)
Arm A: Imetelstat 9.4 mg/kg (MF)42.61
Arm B: Imetelstat 9.4 mg/kg as Induction + Maintenance (MF)26.73
Arm D: Imetelstat 9.4 mg/kg (Blast-phase MF/Acute Myeloid Leukemia)4.93
Arm E: Imetelstat 7.5 - 9.4 mg/kg (MF [With Spliceosome Mutation or Ring Sideroblasts])12.09
Arm F: Imetelstat 7.5 - 9.4 mg/kg (MF [Without Spliceosome Mutation and Ring Sideroblasts])NA
Arm G: Imetelstat 7.5 - 9.4 mg/kg (MDS/MPN or MDS With Spliceosome Mutations or Ring Sideroblasts)28.42

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Number of Participants With Spleen Response Per IWG-MRT Criteria

Spleen response per IWG-MRT criteria defined as baseline splenomegaly that is palpable at 5-10 cm, below the LCM, becomes not palpable, OR A baseline splenomegaly that is palpable at >10 cm, below the LCM, decreases by ≥50%. Baseline splenomegaly that is palpable at <5 cm, below the LCM, is not eligible for spleen response. Confirmation by Magnetic resonance imaging (MRI) or computerized tomography (CT) showing ≥35% spleen volume reduction is recommended (but not required). Spleen response was assessed only in participants with MF. (NCT01731951)
Timeframe: Up to approximately 5.7 years

InterventionParticipants (Count of Participants)
Arm A: Imetelstat 9.4 mg/kg (MF)3
Arm B: Imetelstat 9.4 mg/kg as Induction + Maintenance (MF)1
Arm D: Imetelstat 9.4 mg/kg (Blast-phase MF/Acute Myeloid Leukemia)1
Arm E: Imetelstat 7.5 - 9.4 mg/kg (MF [With Spliceosome Mutation or Ring Sideroblasts])0
Arm F: Imetelstat 7.5 - 9.4 mg/kg (MF [Without Spliceosome Mutation and Ring Sideroblasts])2

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Number of Participants With Telomerase Inhibition

This outcome measure is applicable only for the Molecular biology study arm. Telomerase inhibition was assessed in PBMCs and summarised as 'yes-inhibited' vs. 'no inhibition' (NCT01836549)
Timeframe: Up to 30 days

InterventionParticipants (Count of Participants)
Molecular Biology Study5

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Numver of Patients With Telomerase-positive Archival Tumors Who Demonstrate at Least 50% Reduction

This outcome measure is for the Molecular biology study only. The assessment was done to identify cases with at least 50% reduction in telomerase activity. (NCT01836549)
Timeframe: Up to 30 days

InterventionParticipants (Count of Participants)
Molecular Biology Study1

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Phase II: Stratum-specific Objective Response (CR+PR) Rate

"Per Response Evaluation Criteria In Solid Tumors Criteria (RECIST v1.0) for target lesions and assessed by MRI: Complete Response (CR), Disappearance of all target lesions; Partial Response (PR), >=50% decrease in the sum of the longest diameter of target lesions; Overall Response (OR) = CR + PR sustained for at least 6 weeks.~For each stratum separately exact confidence interval estimates will be provided for the true, unknown rates of objective response. Estimated by cumulative incidence functions." (NCT01836549)
Timeframe: 6 months

InterventionParticipants (Count of Participants)
Stratum-A0
Stratum-B0
Stratum-C0
Stratum-D0

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Stratum-specific Progression-free Survival (PFS) (Phase II)

Kaplan-Meier estimates of distributions of survival and PFS for all eligible subjects who received at least one dose of imetelstat will be provided separately. (NCT01836549)
Timeframe: Up to 2 years, from the date of initial treatment to the earliest date of disease progression, second malignancy or death for subjects who fail; and to the date of last contact for subjects who remain at risk for failure, assessed up to 3 years

Interventiondays (Mean)
Stratum-A30
Stratum-B54.2
Stratum-C50.3
Stratum-D52.6

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Number of Patients With Telomerase Expression Data by Detection of hTERT mRNA and TERC RNA Levels by qRT-PCR and Telomerase Activity by TRAP in Archival Tumor Tissue and to Explore Association of Telomerase Positivity With Objective Response and PFS

This secondary objective is for Stratum-B and C only, which enroll HGG and ependymoma patients. We will describe the evidence of telomerase expression by detection of hTERT mRNA and TERC RNA levels by qRT-PCR and telomerase activity by TRAP in archival tumor tissue; Association of telomerase positivity with objective response and PFS will not be able to be conducted as the study was terminated early and there was no objective response. (NCT01836549)
Timeframe: Up to 30 days. Due to small number of patients evaluable for this objective, we can only provide number of patients with the targetted markers as no analysis with PFS is possible.

InterventionParticipants (Count of Participants)
TRAPTERTTERC
Stratum-C333

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Area Under the Plasma Concentration-Time Curve From Time Zero to 24 Hours (AUC 0-24) of Imetelstat

(NCT02426086)
Timeframe: 0 (before start of infusion), 1, 2, 3-5, 6-10, 12-16 and 18-24 hours post dose on Day 1 of Cycle 1 (each cycle was of 21 days)

Interventionμg*hr/mL (Mean)
PK: Imetelstat 4.7 mg/kg171
PK: Imetelstat 9.4 mg/kg501

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Area Under the Plasma Concentration-Time Profile From Time Zero to Infinity (AUC0-inf) of Imetelstat

(NCT02426086)
Timeframe: 0 (before start of infusion), 1, 2, 3-5, 6-10, 12-16 and 18-24 hours post dose on Day 1 of Cycle 1 (each cycle was of 21 days)

Interventionμg*h/mL (Mean)
PK: Imetelstat 4.7 mg/kg193
PK: Imetelstat 9.4 mg/kg524

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Duration of Response (PR/CI/RWCI) as Per IWG-MRT Criteria

Duration of response (PR/CI/RWCI) is the duration from the date of initial documentation of a response to date of first documented evidence of PD or death, whichever occurs first. PR: BM: normocellular: <5% blasts ≤Grade 1 fibrosis/not meeting BM remission criteria; IMC in PB: <2%; Hb: 8.5 -<10 g/dL-ULN or 10 g/dL- ULN; neutrophils: 1*10^9/L-ULN; platelets: 50 -<100*10^9/L-ULN; spleen: ≥35% splenic volumetric reduction by MRI/not palpable; EMH: no non-hepato-splenic EMH; symptoms: >50% improvement in symptom score. CI: achievement of anemia, spleen or symptoms response without PD or increase in severity of anemia, thrombocytopenia, neutropenia. RWCI: Participants who met criteria for response but had worsening cytopenias. PD: Splenomegaly requires MRI showing ≥25% increase in spleen volume. (NCT02426086)
Timeframe: From date of initial documentation of a response to the date of first documented evidence of PD or death, whichever occurs first (approximately up to 2.3 years)

Interventionweeks (Median)
Imetelstat 4.7 mg/kg36.3
Imetelstat 9.4 mg/kg38.3

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Elimination Half-Life (t1/2) of Imetelstat

Elimination half-life (t 1/2) is associated with the terminal slope (lambda [z]) of the semi logarithmic drug concentration-time curve, calculated as 0.693/lambda(z). (NCT02426086)
Timeframe: 0 (before start of infusion), 1, 2, 3-5, 6-10, 12-16 and 18-24 hours post dose on Day 1 of Cycle 1 (each cycle was of 21 days)

Interventionhr (Mean)
PK: Imetelstat 4.7 mg/kg4.6
PK: Imetelstat 9.4 mg/kg5.5

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Maximum Observed Plasma Concentration (Cmax) of Imetelstat

(NCT02426086)
Timeframe: 0 (before start of infusion), 1, 2, 3-5, 6-10, 12-16 and 18-24 hours post dose on Day 1 of Cycle 1 (each cycle was of 21 days)

Interventionμg/mL (Mean)
PK: Imetelstat 4.7 mg/kg57.0
PK: Imetelstat 9.4 mg/kg81.9

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Number of Participants With Treatment-emergent Adverse Events (TEAEs)

An AE is any untoward medical occurrence in a participant or clinical investigation participants administered a pharmaceutical product and that does not necessarily have a causal relationship with this treatment. TEAEs were AEs with onset during or after the first dose of study drug, and within 30 days following the last dose of study drug. (NCT02426086)
Timeframe: Up to end of extension phase (approximately up to 4.2 years)

InterventionParticipants (Count of Participants)
Imetelstat 4.7 mg/kg47
Imetelstat 9.4 mg/kg59

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Overall Survival

Overall Survival is measured from the date of Cycle 1, Day 1 to the date of the participants death. If the participant's was alive or the vital status was unknown, OS was censored at the date that the participant is last known to be alive. (NCT02426086)
Timeframe: Day 1 of Cycle 1 (each cycle was of 21 days), up to the date of the participant's death (approximately up to 4.1 years)

Interventionmonths (Median)
Imetelstat 4.7 mg/kg19.91
Imetelstat 9.4 mg/kg28.09

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Patient's Global Impression of Change (PGIC)

The PGIC was used to capture the participant's perspective of improvement or decline in MF symptoms over time. The PGIC had a 7-point response scale ranging from 1 to 7 where, (1=very much improved, 2= somewhat improved, 3= a little improved, 4=no change, 5= a little worse, 6= somewhat worse, 7=very much worse). (NCT02426086)
Timeframe: At the end of treatment, up to approximately 2.3 years

Interventionscore on a scale (Mean)
Imetelstat 4.7 mg/kg4.82
Imetelstat 9.4 mg/kg3.97

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Percentage of Participants With Clinical Improvement (CI) Per Modified 2013 IWG-MRT Criteria

CI per the modified 2013 IWG-MRT criteria defined as the achievement of anemia, spleen or symptoms response without progressive disease or increase in severity of anemia, thrombocytopenia, or neutropenia (Increase in severity of anemia constitutes the occurrence of new transfusion dependency or a ≥ 2.0 g/dL decrease in hemoglobin level from pretreatment baseline that lasts for at least 12 weeks. Increase in severity of thrombocytopenia or neutropenia is defined as a 2-grade decline, from pretreatment baseline, in platelet count or ANC, according to the Common Terminology Criteria for Adverse Events (CTCAE) Version 4.03. In addition, assignment to CI requires a minimum platelet count of ≥ 25,000*10^9/L and ANC of ≥ 0.5*10^9/L.) For all response categories, benefit must last for >12 weeks to qualify as a response. (NCT02426086)
Timeframe: Every 12 weeks up to Week 48 then every 24 weeks (approximately up to 2.3 years)

Interventionpercentage of participants (Number)
Imetelstat 4.7 mg/kg16.7
Imetelstat 9.4 mg/kg25.4

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Percentage of Participants With Clinical Response Per Modified 2013 IWG-MRT

Clinical response rate (CRR) was defined as percentage of participants who achieved CR, PR, or CI per modified 2013 IWG-MRT criteria. CR: bone marrow: normocellular <5% blasts, ≤Grade 1 fibrosis; immature myeloid cells in PB: <2%; Hb: 10 g/dL-ULN; neutrophils: 1*10^9/L-ULN; platelets: 100*10^9/L-ULN; spleen: not palpable and ≤350ml volume; EMH: no non-hepato-splenic EMH; symptoms: >70% improvement in symptom score per modified MFSAF v2.0 TSS. PR: bone marrow: normocellular: <5% blasts ≤ Grade 1 fibrosis or not meeting bone marrow remission criteria; Immature myeloid cells in PB: <2%; Hb: 8.5 -<10 g/dL-ULN or 10 g/dL-ULN; neutrophils: 1*10^9/L-ULN; platelets: 50 -<100*10^9/L-ULN; spleen: ≥35% splenic volumetric reduction by MRI or not palpable; EMH: no non-hepato-splenic EMH; symptoms: >50% improvement in symptom score per modified MFSAF v2.0 TSS. CI: achievement of anemia, spleen or symptoms response without PD or increase in severity of anemia, thrombocytopenia, or neutropenia. (NCT02426086)
Timeframe: Every 12 weeks up to Week 48 then every 24 weeks (approximately up to 2.3 years)

Interventionpercentage of participants (Number)
Imetelstat 4.7 mg/kg16.7
Imetelstat 9.4 mg/kg27.1

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Percentage of Participants With Clinically Meaningful Improvement in European Organization for Research and Treatment of Cancer (EORTC) Quality of Life Questionnaire-30 (QLQ-C30): Global Health Status

EORTC QLQ-C30 is a questionnaire to assess quality of life of cancer patients. The EORTC QLQ-C30 included 30 items resulting in 5 functional scales (physical functioning, role functioning, emotional functioning, cognitive functioning, and social functioning), 3 symptom scales (fatigue, nausea and vomiting, and pain), and 6 single items (dyspnea, insomnia, appetite loss, constipation, diarrhea, and financial difficulties) which are based on 4-point scale (1= Not at all to 4= Very much); and 1 global health status scale based on 7-point scale (1= Very poor to 7= Excellent). All scales and items are averaged, transformed to 0-100 scale; higher score=better level of functioning. Clinically meaningful improvement defined as change greater than half of the standard deviation at baseline in QLQ-C30 Global Health Status. (NCT02426086)
Timeframe: Up to end of the treatment (approximately up to 2.3 years)

Interventionpercentage of participants (Number)
Imetelstat 4.7 mg/kg22.2
Imetelstat 9.4 mg/kg36.4

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Percentage of Participants With Symptom Response

Symptom response rate is defined as percentage of participants who achieved ≥ 50% reduction in total symptom score (TSS) at Week 24 from baseline as measured by the modified Myelofibrosis Symptom Assessment Form (MFSAF) version 2.0 diary. The MFSAF assessed following symptoms due to Myelofibrosis (MF): night sweats, itchiness, abdominal discomfort, pain under ribs on left side, feeling of fullness, bone or muscle pain and degree of inactivity. Each item is scored on a scale of 0 (absent) to 10 (worst imaginable) with higher scores indicating more severe symptoms and greater inactivity. The total score ranges from 0-70, where 0 indicates absent/as good as it can be and 70 indicates worst imaginable/as bad as it can be. (NCT02426086)
Timeframe: Week 24

Interventionpercentage of participants (Number)
Imetelstat 4.7 mg/kg6.3
Imetelstat 9.4 mg/kg32.2

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Time to Reach Maximum Observed Plasma Concentration (Tmax) of Imetelstat

(NCT02426086)
Timeframe: 0 (before start of infusion), 1, 2, 3-5, 6-10, 12-16 and 18-24 hours post dose on Day 1 of Cycle 1 (each cycle was of 21 days)

Interventionhr (Median)
PK: Imetelstat 4.7 mg/kg2.00
PK: Imetelstat 9.4 mg/kg2.00

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Total Systemic Clearance (CL) of Imetelstat

(NCT02426086)
Timeframe: 0 (before start of infusion), 1, 2, 3-5, 6-10, 12-16 and 18-24 hours post dose on Day 1 of Cycle 1 (each cycle was of 21 days)

InterventionL/hr/kg (Mean)
PK: Imetelstat 4.7 mg/kg0.0329
PK: Imetelstat 9.4 mg/kg0.0252

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Volume of Distribution (Vd) of Imetelstat

(NCT02426086)
Timeframe: 0 (before start of infusion), 1, 2, 3-5, 6-10, 12-16 and 18-24 hours post dose on Day 1 of Cycle 1 (each cycle was of 21 days)

InterventionL/kg (Mean)
PK: Imetelstat 4.7 mg/kg0.198
PK: Imetelstat 9.4 mg/kg0.190

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EuroQol 5 Dimension 5 Level (EQ-5D-5L): Utility Score and Visual Analog Scale (VAS)

EQ-5D-5L is a standardized health-related quality of life questionnaire developed by EuroQol Group in order to provide a simple, generic measure of health for clinical and economic appraisal. EQ-5D-5L consists of two components: a health state profile and VAS. EQ-5D health state profile comprises of 5 dimensions: mobility, self-care, usual activities, pain/discomfort and anxiety/depression. Each dimension has 5 levels: 1=no problems, 2=slight problems, 3=moderate problems, 4=severe problems, and 5=extreme problems. The 5D-5L systems are converted into a single index utility score between 0 to 1, where higher score indicates a better health state. EQ-5D-5L- VAS is designed to rate the participant's current health state on a scale from 0 to 100, where 0 represents the worst imaginable health state and 100 represents the best imaginable health state. (NCT02426086)
Timeframe: At the end of treatment, up to approximately 2.3 years

,
Interventionscore on a scale (Mean)
EQ-5D-5L: Utility ScoreEQ-5D-5L: VAS
Imetelstat 4.7 mg/kg0.49851.28
Imetelstat 9.4 mg/kg0.62647.73

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Percentage of Participants With Anemia Response Per Modified 2013 IWG-MRT Criteria

"Anemia response per modified 2013 IWG-MRT criteria. Anemia response is defined as participants with baseline Hb <10 g/dL but not meeting strict criteria for transfusion dependency: a ≥ 2 g/dL increase in Hb; Transfusion dependent participants at baseline: becoming transfusion independent. Transfusion independence is defined as absence of any pRBC transfusions for at least 12 rolling weeks. For response categories, benefit must last for >12 weeks to qualify as a response. Participants who achieved CI per modified IWG-MRT criteria considered as response with clinical improvement. Participants who met criteria for anemia response but had worsening cytopenias (and therefore did not meet criteria for clinical improvement) were considered to have a response without clinical improvement. The clinical improvement in IWG-MRT is defined as the achievement of anemia, spleen or symptoms response without progressive disease or increase in severity of anemia, thrombocytopenia, or neutropenia." (NCT02426086)
Timeframe: Every 12 weeks up to Week 48 then every 24 weeks (approximately up to 2.3 years)

,
Interventionpercentage of participants (Number)
Anemia response with CIAnemia response without CI
Imetelstat 4.7 mg/kg4.20
Imetelstat 9.4 mg/kg6.81.7

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Percentage of Participants With Clinically Meaningful Improvement in Brief Pain Inventory (BPI)

The BPI rates the intensity of pain on 4 items (right now, worst, least, and average), and the interference in 7 areas (general activity, mood, walking ability, normal work, relations, sleep, enjoyment of life). Minimum value = 0; maximum value = 10. Higher scores indicate greater symptom severity/worse outcomes. Clinically meaningful improvement in BPI defined as change greater than half of the standard deviation at baseline. (NCT02426086)
Timeframe: Up to end of treatment (approximately up to 2.3 years)

,
Interventionpercentage of participants (Number)
Pain at its Worst: ImprovementPain at its Least: ImprovementPain on the Average: ImprovementPain Right Now: ImprovementRelief Pain Treatments Provided: ImprovementPain Interfered General Activity: ImprovementPain Interfered with Mood: ImprovementPain Interfered Walking Ability: ImprovementPain Interfered with Normal Work: ImprovementPain Interfered with Relations: ImprovementPain Interfered with Sleep: ImprovementPain Interfered Enjoyment of Life: Improvement
Imetelstat 4.7 mg/kg50.044.455.661.150.072.250.038.961.144.461.161.1
Imetelstat 9.4 mg/kg75.851.566.766.753.168.859.478.162.553.178.162.5

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Percentage of Participants With Spleen Response Per Modified 2013 IWG-MRT Criteria

Spleen response per modified 2013 IWG-MRT criteria. Spleen response: a baseline splenomegaly that is palpable at 5-10 cm, below the left costal margin (LCM), becomes not palpable or a baseline splenomegaly that is palpable at >10 cm, below the LCM, decreases by ≥50%; A spleen response requires confirmation by MRI showing >35% spleen volume reduction (SVR). For response categories, benefit must last for >12 weeks to qualify as a response. Participants who achieved CI per modified IWG-MRT criteria considered as response with clinical improvement. Participants who met criteria for spleen response but had worsening cytopenias (and therefore did not meet criteria for clinical improvement) were considered to have a response without clinical improvement. The clinical improvement in IWG-MRT is defined as the achievement of anemia, spleen or symptoms response without progressive disease or increase in severity of anemia, thrombocytopenia, or neutropenia. (NCT02426086)
Timeframe: Every 12 weeks up to Week 48 then every 24 weeks (approximately up to 2.3 years)

,
Interventionpercentage of participants (Number)
Spleen response with CISpleen response without CI
Imetelstat 4.7 mg/kg02.1
Imetelstat 9.4 mg/kg3.40

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Percentage of Participants With Overall Response as Per Modified 2013 International Working Group - Myeloproliferative Neoplasms Research and Treatment (IWG-MRT) Criteria

Overall Response Rate: % of participants with complete remission (CR) or partial remission (PR) per modified IWG-MRT.CR: bone marrow: normocellular <5% blasts, ≤Grade 1 fibrosis; immature myeloid cells in peripheral blood (PB):<2%;hemoglobin (Hb):10 g/dL-upper limit of normal (ULN); neutrophils:1*10^9/L-ULN; platelets: 100*10^9/L-ULN; spleen:not palpable and ≤350ml volume; extramedullary hematopoiesis (EMH): no non-hepato-splenic EMH; symptoms: >70% improvement in symptom score per modified MFSAF v2.0 TSS. PR: bone marrow: normocellular: <5% blasts ≤ Grade 1 fibrosis or not meeting bone marrow remission criteria; Immature myeloid cells in PB: <2%; Hb: 8.5 -<10 g/dL-ULN or 10 g/dL-ULN; neutrophils: 1*10^9/L-ULN; platelets: 50 -<100*10^9/L-ULN; spleen: ≥35% splenic volumetric reduction by MRI or not palpable; EMH: no non-hepato-splenic EMH;symptoms: >50% improvement in symptom score per modified MFSAF v2.0 TSS. All response categories, benefit must last >12 weeks to qualify as response. (NCT02426086)
Timeframe: Every 12 weeks up to Week 48 then every 24 weeks (approximately up to 2.3 years)

Interventionpercentage of participants (Number)
Imetelstat 4.7 mg/kg0
Imetelstat 9.4 mg/kg1.7

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Percentage of Participants With Symptoms Response Per Modified 2013 IWG-MRT Criteria

Symptoms response per modified 2013 IWG-MRT criteria. Symptoms Response: a ≥50% reduction in the modified MFSAF v2.0 TSS. For response category, benefit must last for >12 weeks to qualify as a response. Participants who achieved CI per modified IWG-MRT criteria considered as response with clinical improvement. Participants who met criteria for symptom response but had worsening cytopenias (and therefore did not meet criteria for clinical improvement) were considered to have a response without clinical improvement. The clinical improvement in IWG-MRT is defined as the achievement of anemia, spleen or symptoms response without progressive disease or increase in severity of anemia, thrombocytopenia, or neutropenia. (NCT02426086)
Timeframe: Every 12 weeks up to Week 48 then every 24 weeks (approximately up to 2.3 years)

,
Interventionpercentage of participants (Number)
Symptom response with CISymptom response without CI
Imetelstat 4.7 mg/kg14.64.2
Imetelstat 9.4 mg/kg22.08.5

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Percentage of Participants With Spleen Response

Spleen response rate is defined as the percentage of participants who achieved ≥ 35% reduction in spleen volume at Week 24 from baseline performed by the IRC using magnetic resonance imaging (MRI). (NCT02426086)
Timeframe: Week 24

Interventionpercentage of participants (Number)
Imetelstat 4.7 mg/kg0
Imetelstat 9.4 mg/kg10.2

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