onalespib (AT13387) / Otsuka 
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 26 Diseases   5 Trials   5 Trials   175 News 


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  • ||||||||||  abiraterone acetate / Generic mfg., onalespib (AT13387) / Otsuka
    Clinical, P1/2 data, PK/PD data, Journal, Combination therapy:  Pharmacodynamic and clinical results from a phase 1/2 study of the HSP90 inhibitor onalespib in combination with abiraterone acetate in prostate cancer. (Pubmed Central) -  Sep 17, 2020   
    HSP72 was significantly up-regulated following onalespib treatment, but only a modest decrease in AR and GR was shown in paired pre- and post-treatment tumor biopsy samples. No subjects showed an objective or PSA response Onalespib in combination with AA/P, showed mild evidence of some biological effect, however this effect did not translate into clinical activity, hence further exploration of this combination was not justified.
  • ||||||||||  Lutathera (lutetium Lu 177 dotatate) / Novartis, onalespib (AT13387) / Otsuka
    Journal:  The HSP90 inhibitor onalespib potentiates 177Lu‑DOTATATE therapy in neuroendocrine tumor cells. (Pubmed Central) -  Apr 3, 2020   
    Consequently, the combination of onalespib and 177Lu‑DOTATATE may prove to be a promising strategy with which to improve therapeutic responses in patients with NETs. Further studies investigating this strategy in vivo regarding the therapeutic effects and potential toxicities are warranted to expand these promising findings.
  • ||||||||||  SP600125 / BMS, onalespib (AT13387) / Otsuka
    Journal:  Enhancement by HSP90 inhibitor of PGD2-stimulated HSP27 induction in osteoblasts: suppression of SAPK/JNK and p38 MAP kinase. (Pubmed Central) -  Feb 22, 2020   
    SP600125, an inhibitor of SAPK/JNK, and SB203580, an inhibitor of p38 MAP kinase, suppressed the amplification by onalespib of the PGD-stimulated HSP27 induction. These results strongly suggest that HSP90 plays a negative role in the HSP27 induction stimulated by PGD in osteoblasts, and that the inhibitory effect of HSP90 is mediated through the regulation of SAPK/JNK and p38 MAP kinase.
  • ||||||||||  AT7519 / Novartis, Otsuka, onalespib (AT13387) / Otsuka
    Trial primary completion date, Surgery, Metastases:  Onalespib and CDKI AT7519 in Treating Patients With Solid Tumors That Are Metastatic or Cannot Be Removed by Surgery (clinicaltrials.gov) -  Feb 5, 2020   
    P1,  N=37, Active, not recruiting, 
    These results strongly suggest that HSP90 plays a negative role in the HSP27 induction stimulated by PGD in osteoblasts, and that the inhibitory effect of HSP90 is mediated through the regulation of SAPK/JNK and p38 MAP kinase. Trial primary completion date: Dec 2019 --> Jun 2020
  • ||||||||||  onalespib (AT13387) / Otsuka
    Journal:  HSP90 inhibitors diminish PDGF-BB-induced migration of osteoblasts via suppression of p44/p42 MAP kinase. (Pubmed Central) -  Jan 12, 2020   
    Onalespib, an HSP90 inhibitor, significantly reduced the PDGF-BB-stimulated migration evaluated by the two types of migration assays...In addition, the phosphorylation of p44/p42 MAP kinase by PDGF-BB was reduced by geldanamycin. Taken together, these results strongly suggest that HSP90 inhibitors suppress the PDGF-BB-induced osteoblast migration through the attenuation of p44/p42 MAP kinase activity.
  • ||||||||||  Increasing extent of ablation - a senolytic approach to promote apoptosis of latent glioblastoma following chemoradiation. (Ballroom Lawn) -  Oct 29, 2019 - Abstract #SNO2019SNO_1272;    
    Current therapies, including radiation and temozolomide, are known to induce senescence in tumor cells...Given existence of multiple SCAPs, we evaluated the IC50 for several senolytic candidates including Dasatinib, Quercetin, Fisetin, AMG-232, Onalespib, A1331852, and Navitoclax in radiated vs non-radiated cells... Our findings suggest that blocking the anti-apoptotic pathway Bcl-XL in GBM cells rendered at least transiently senescent following radiation may provide an avenue to selectively ablate residual glioblastoma cells following radiation. Our data provide proof of principle that senolytic therapy may represent a previously untapped window of opportunity to increase extent of tumor ablation following completion of standard cytotoxic therapies.
  • ||||||||||  onalespib (AT13387) / Otsuka
    Trial primary completion date:  Phase 2 Study of AT13387 (Onalespib) in ALK+ ALCL, MCL, and BCL-6+ DLBCL (clinicaltrials.gov) -  Oct 20, 2019   
    P2,  N=50, Recruiting, 
    In all, comprehensive data from near-patient models presents novel contexts for HSP90 inhibition in multiple CRPC genotypes and phenotypes, expands upon HSP90 inhibitors as simultaneous inhibitors of oncogenic signaling and resistance mechanisms, and suggests utility for combined HSP90/AR inhibition in CRPC. Trial primary completion date: Aug 2019 --> Oct 2020
  • ||||||||||  Journal:  Proteomic analysis of proteome and histone post-translational modifications in heat shock protein 90 inhibition-mediated bladder cancer therapeutics. (Pubmed Central) -  Sep 7, 2018   
    Furthermore, quantitative proteome studies identified 14 types of PTMs with 93 marks on the core histones, including 34 novel histone marks of butyrylation, citrullination, 2-hydroxyisobutyrylation, methylation, O-GlcNAcylation, propionylation, and succinylation in AUY922- and ganetespib-treated 5637 cells. Together, this study outlines the association between proteomic changes and histone PTMs in response to HSP90 inhibitor treatment in bladder carcinoma cells, and thus intensifies the understanding of HSP90 inhibition-mediated bladder cancer therapeutics.
  • ||||||||||  onalespib (AT13387) / Otsuka
    Enrollment closed, Trial primary completion date, Metastases:  Erlotinib Hydrochloride and Onalespib Lactate in Treating Patients With Recurrent or Metastatic EGFR-Mutant Non-small Cell Lung Cancer (clinicaltrials.gov) -  Aug 8, 2018   
    P1/2,  N=46, Active, not recruiting, 
    Together, this study outlines the association between proteomic changes and histone PTMs in response to HSP90 inhibitor treatment in bladder carcinoma cells, and thus intensifies the understanding of HSP90 inhibition-mediated bladder cancer therapeutics. Recruiting --> Active, not recruiting | Trial primary completion date: Jun 2018 --> Jun 2019
  • ||||||||||  onalespib (AT13387) / Otsuka
    Trial completion, Combination therapy:  A Study of AT13387 in Patients With Non-Small Cell Lung Cancer (NSCLC) Alone and in Combination With Crizotinib (clinicaltrials.gov) -  Jan 18, 2018   
    P1/2,  N=228, Completed, 
    Our results demonstrate the long-acting effects of onalespib against gliomas in vitro and in vivo which combined with its ability to cross the BBB support its development as a potential therapeutic agent in combination with TMZ against gliomas. Active, not recruiting --> Completed
  • ||||||||||  onalespib (AT13387) / Otsuka
    Trial primary completion date:  Phase 2 Study of AT13387 (Onalespib) in ALK+ ALCL, MCL, and BCL-6+ DLBCL (clinicaltrials.gov) -  Feb 20, 2017   
    P2,  N=50, Recruiting, 
    Trial primary completion date: Mar 2017 --> Jan 2018 Trial primary completion date: Dec 2016 --> Aug 2019