Janus kinase inhibitors: jackpot or potluck?

The reports of a unique mutation in the Janus kinase-2 gene (JAK2) in polycythemia vera by several independent groups in 2005 quickly spurred the development of the Janus kinase inhibitors. In one of the great victories of translational research in recent times, the first smallmolecule Janus kinase...

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Main Authors: Pavithran Keechilat, Shripad Brahmanand Pande
Format: Article
Language:English
Published: Frontiers Media S.A. 2012-06-01
Series:Oncology Reviews
Subjects:
Online Access:http://www.oncologyreviews.org/index.php/or/article/view/187
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author Pavithran Keechilat
Shripad Brahmanand Pande
author_facet Pavithran Keechilat
Shripad Brahmanand Pande
author_sort Pavithran Keechilat
collection DOAJ
description The reports of a unique mutation in the Janus kinase-2 gene (JAK2) in polycythemia vera by several independent groups in 2005 quickly spurred the development of the Janus kinase inhibitors. In one of the great victories of translational research in recent times, the first smallmolecule Janus kinase inhibitor ruxolitinib entered a phase I trial in 2007. With the approval of ruxolitinib by the US Federal Drug Administration in November 2011 for high-risk and intermediate-2 risk myelofibrosis, a change in paradigm has occurred in the management of a subset of myeloproliferative neoplasms (MPN): primary myelofibrosis, post-polycythemia vera myelofibrosis, and post-essential thrombocythemia myelofibrosis. Whereas the current evidence for ruxolitinib only covers high-risk and intermediate-2 risk myelofibrosis, inhibitors with greater potency are likely to offer better disease control and survival advantage in patients belonging to these categories, and possibly to the low-risk and intermediate-1 risk categories of MPN as well. But use of the Janus kinase inhibitors also probably has certain disadvantages, such as toxicity, resistance, withdrawal phenomenon, non-reversal of histology, and an implausible goal of disease clone eradication, some of which could offset the gains. In spite of this, Janus kinase inhibitors are here to stay, and for use in more than just myeloproliferative neoplasms.
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spelling doaj.art-125cdbb761434883aa47e00690b7609b2023-01-03T08:58:32ZengFrontiers Media S.A.Oncology Reviews1970-55571970-55652012-06-016110.4081/oncol.2012.e13166Janus kinase inhibitors: jackpot or potluck?Pavithran Keechilat0Shripad Brahmanand Pande1Department of Medical Oncology and Hematology, Amrita Institute of Medical Sciences, KochiDepartment of Medical Oncology and Hematology, Amrita Institute of Medical Sciences, KochiThe reports of a unique mutation in the Janus kinase-2 gene (JAK2) in polycythemia vera by several independent groups in 2005 quickly spurred the development of the Janus kinase inhibitors. In one of the great victories of translational research in recent times, the first smallmolecule Janus kinase inhibitor ruxolitinib entered a phase I trial in 2007. With the approval of ruxolitinib by the US Federal Drug Administration in November 2011 for high-risk and intermediate-2 risk myelofibrosis, a change in paradigm has occurred in the management of a subset of myeloproliferative neoplasms (MPN): primary myelofibrosis, post-polycythemia vera myelofibrosis, and post-essential thrombocythemia myelofibrosis. Whereas the current evidence for ruxolitinib only covers high-risk and intermediate-2 risk myelofibrosis, inhibitors with greater potency are likely to offer better disease control and survival advantage in patients belonging to these categories, and possibly to the low-risk and intermediate-1 risk categories of MPN as well. But use of the Janus kinase inhibitors also probably has certain disadvantages, such as toxicity, resistance, withdrawal phenomenon, non-reversal of histology, and an implausible goal of disease clone eradication, some of which could offset the gains. In spite of this, Janus kinase inhibitors are here to stay, and for use in more than just myeloproliferative neoplasms.http://www.oncologyreviews.org/index.php/or/article/view/187myeloproliferative neoplasmsmyelofibrosispolycythemia veraessential thrombocythemiajanus kinaseruxolitinib.
spellingShingle Pavithran Keechilat
Shripad Brahmanand Pande
Janus kinase inhibitors: jackpot or potluck?
Oncology Reviews
myeloproliferative neoplasms
myelofibrosis
polycythemia vera
essential thrombocythemia
janus kinase
ruxolitinib.
title Janus kinase inhibitors: jackpot or potluck?
title_full Janus kinase inhibitors: jackpot or potluck?
title_fullStr Janus kinase inhibitors: jackpot or potluck?
title_full_unstemmed Janus kinase inhibitors: jackpot or potluck?
title_short Janus kinase inhibitors: jackpot or potluck?
title_sort janus kinase inhibitors jackpot or potluck
topic myeloproliferative neoplasms
myelofibrosis
polycythemia vera
essential thrombocythemia
janus kinase
ruxolitinib.
url http://www.oncologyreviews.org/index.php/or/article/view/187
work_keys_str_mv AT pavithrankeechilat januskinaseinhibitorsjackpotorpotluck
AT shripadbrahmanandpande januskinaseinhibitorsjackpotorpotluck