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DRUG:

Synribo (omacetaxine mepesuccinate)

i
Other names: sHHT, CGX-635, CXS-635, HHT, NCI 141633, C41443
Company:
ArchiMed, Teva
Drug class:
Apoptosis stimulant, MCL1 inhibitor, MYC inhibitor, Protein synthesis inhibitor, G1-S-specific cyclin-D1 inhibitor
Related drugs:
22h
Omacetaxine + Azacitidine in Untreated Patients With High Grade MDS (clinicaltrials.gov)
P1/2, N=28, Active, not recruiting, University of Colorado, Denver | Trial primary completion date: Aug 2026 --> Oct 2025
Trial primary completion date
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azacitidine • Synribo (omacetaxine mepesuccinate)
3d
Extensive myeloid sarcoma presenting with esophageal compression and dysphagia as the initial manifestation. (PubMed, Medicine (Baltimore))
Infiltrative mediastinal/retroperitoneal MS may present with esophageal obstruction and mimic lymphoma or carcinoma. High-index suspicion, targeted biopsy with high-power morphology, and a focused immunohistochemical panel are critical for timely diagnosis and treatment initiation.
Journal
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KIT (KIT proto-oncogene, receptor tyrosine kinase) • CD20 (Membrane Spanning 4-Domains A1) • CD34 (CD34 molecule) • PTPRC (Protein Tyrosine Phosphatase Receptor Type C) • CD5 (CD5 Molecule) • CD79A (CD79a Molecule) • CD7 (CD7 Molecule) • KRT19 (Keratin 19) • CD2 (CD2 Molecule) • CD99 (CD99 Molecule)
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cytarabine • Synribo (omacetaxine mepesuccinate) • aclarubicin
1m
Omacetaxine and Venetoclax for the Treatment of Relapsed or Refractory Acute Myeloid Leukemia or Myelodysplastic Syndrome Harboring Mutant RUNX1 (clinicaltrials.gov)
P1/2, N=24, Terminated, M.D. Anderson Cancer Center | Completed --> Terminated; The study terminated early because the company was longer providing the investigational product.
Trial termination
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RUNX1 (RUNX Family Transcription Factor 1)
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RUNX1 mutation
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Venclexta (venetoclax) • Synribo (omacetaxine mepesuccinate)
1m
Ribosomal protein L5 (RPL5/uL18) I60V mutation is associated to increased translation and modulates drug sensitivity in T-cell acute lymphoblastic leukemia cells. (PubMed, Biochem Pharmacol)
We then evaluated the response of these mutant cells to a panel of compounds targeting protein synthesis at various levels-including an MNK1 inhibitor, metformin, silvestrol, homoharringtonine, anisomycin, resveratrol, and hygromycin B-as well as cytarabine, a chemotherapeutic agent commonly used in T-ALL treatment. Our results showed that the RPL5-I60V mutation confers increased sensitivity to most of these compounds, with the exception of hygromycin B. This study advances our understanding of how oncoribosomes contribute to cancer pathogenesis and highlights the therapeutic potential of directly or indirectly targeting altered ribosomes, offering insights for the development of personalized treatment strategies.
Journal
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RPL5 (Ribosomal Protein L5)
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cytarabine • metformin • Synribo (omacetaxine mepesuccinate)
1m
A Phase Ib/II Prospective, Multicenter, Single-Arm Study of Homoharringtonine, BCL-2 Inhibitor, Rituximab and Prednisone in Patients with Relapsed or Refractory Diffuse Large B-Cell Lymphoma (ChiCTR2500107690)
P1/2, N=62, Not yet recruiting, The First Affiliated Hospital, Zhejiang University College of Medicine; The First Affiliated Hospital of Zhejiang University Medical College
New P1/2 trial
|
CD20 positive
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Rituxan (rituximab) • prednisone • Synribo (omacetaxine mepesuccinate)
2ms
Omacetaxine + Azacitidine in Untreated Patients With High Grade MDS (clinicaltrials.gov)
P1/2, N=28, Active, not recruiting, University of Colorado, Denver | Trial primary completion date: Aug 2025 --> Aug 2026
Trial primary completion date
|
azacitidine • Synribo (omacetaxine mepesuccinate)
3ms
APG2575AC101: Study of Lisaftoclax (APG-2575) Single Agent and Combination With Therapy in Patients Relapsed/Refractory AML (clinicaltrials.gov)
P1/2, N=458, Recruiting, Ascentage Pharma Group Inc. | N=284 --> 458 | Trial completion date: Aug 2026 --> Sep 2029 | Trial primary completion date: Aug 2025 --> Sep 2028
Enrollment change • Trial completion date • Trial primary completion date
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azacitidine • Nailike (olverembatinib) • lisaftoclax (APG-2575) • Synribo (omacetaxine mepesuccinate)
3ms
Omacetaxine and venetoclax in relapsed/refractory acute myeloid leukemia or myelodysplastic syndrome with mutant RUNX1. (PubMed, Blood Neoplasia)
Clinical responses were seen exclusively in patients with MDS, which suggests that dose optimization or combination with cytoreductive agents may be necessary for eliciting clinical activity in AML. This trial was registered at www.ClinicalTrials.gov as #NCT04874194.
Journal
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RUNX1 (RUNX Family Transcription Factor 1) • MCL1 (Myeloid cell leukemia 1) • BCL2L1 (BCL2-like 1)
|
RUNX1 mutation
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Venclexta (venetoclax) • Synribo (omacetaxine mepesuccinate)
3ms
New P1/2 trial • IO biomarker
|
BCL2 (B-cell CLL/lymphoma 2)
|
Rituxan (rituximab) • prednisone • lisaftoclax (APG-2575) • Synribo (omacetaxine mepesuccinate)
3ms
Multi-Omics Integration with Machine Learning and Molecular Docking Reveals Crosstalk Mechanisms and Drug Candidates in Metastatic Melanoma and Vitiligo. (PubMed, Clin Cosmet Investig Dermatol)
Methyl-angolensate, byssochlamic-acid, homoharringtonine, piperacillin and cephaeline were potentially targeted therapeutic compounds for hub genes based on molecular docking. Our study firstly provides new insight into the genetic crosstalk between metastatic melanoma and vitiligo that may facilitate the development of personalized treatments.
Journal
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NOTCH3 (Notch Receptor 3) • PTPRF (Receptor-type tyrosine-protein phosphatase F) • GJB3 (Gap Junction Protein Beta 3) • PKP1 (Plakophilin 1) • PTK6 (Protein Tyrosine Kinase 6)
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Synribo (omacetaxine mepesuccinate) • piperacillin
4ms
CCCG-TALL-2025: Newly-diagnosed Pediatric T-cell ALL Protocol (clinicaltrials.gov)
P2/3, N=610, Recruiting, Institute of Hematology & Blood Diseases Hospital, China | Not yet recruiting --> Recruiting
Enrollment open
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Venclexta (venetoclax) • dasatinib • cytarabine • vincristine • daunorubicin • Synribo (omacetaxine mepesuccinate)
4ms
Role of eIF4E in mediating cytotoxic effect of HHT and ATO on AML cells in bone marrow microenvironment. (PubMed, Hematology)
We established the stromal-AML co-culture system (HS-5 cells with U937, HL-60, and primary AML cells) and the humanized mouse AML model to systematically evaluate eIF4E's role in modulating homoharringtonine (HHT) and arsenic trioxide (ATO) cytotoxicity within the leukemic microenvironment. Genetic perturbation studies demonstrated that eIF4E knockdown sensitized AML cells to HHT/ATO, whereas its overexpression conferred therapeutic resistance. eIF4E may play an essential role in mediating the cytotoxic effects of HHT and ATO, representing a novel therapeutic target in AML.
Journal
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MCL1 (Myeloid cell leukemia 1) • EIF4EBP1 (Eukaryotic translation initiation factor 4E binding protein 1)
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arsenic trioxide • Synribo (omacetaxine mepesuccinate)