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Dasatinib induces fast and deep responses in newly diagnosed chronic myeloid leukaemia patients in chronic phase: clinical results from a randomised phase-2 study (NordCML006)
St Olavs Hospital, Norway; Norwegian University of Science and Technology NTNU, Norway.
Karolinska University Hospital, Sweden; Karolinska Institute, Sweden.
University of Uppsala Hospital, Sweden.
Linköping University, Department of Medical and Health Sciences. Region Östergötland, Center for Surgery, Orthopaedics and Cancer Treatment, Department of Haematology. Linköping University, Faculty of Medicine and Health Sciences.
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2015 (English)In: European Journal of Haematology, ISSN 0902-4441, E-ISSN 1600-0609, Vol. 94, no 3, 243-250 p.Article in journal (Refereed) Published
Abstract [en]

We randomised 46 newly diagnosed patients with chronic myeloid leukaemia (median age 56) to receive dasatinib 100mg QD or imatinib 400mg QD and report outcome as an intention-to-treat analysis with 36months follow-up. Early cytogenetic and molecular responses were superior in the dasatinib group, with a tendency that imatinib patients caught up with time. For instance, MR3.0 was reached at 3months in 36% vs. 8% (P=0.02), at 12months in 81% vs. 46% (P=0.02) and at 18months in 73% vs. 65% (n.s.) of the patients in the two groups. In contrast, MR4.5 was consistently superior in the dasatinib group at all time points from 6months onwards, reaching 61% vs. 21% (Pless than0.05) at 36months. Sixty-four vs. 71% of the patients in the dasatinib and imatinib arms, respectively, remained on assigned drug. Dasatinib dose was frequently reduced, but with maintained excellent effect. One imatinib patient progressed to blastic phase, but no CML-related deaths occurred. In conclusion, our data compare favourably with those of the dasatinib registration study, DASISION. The fast and deep molecular responses induced by dasatinib compared with imatinib may be exploited to increase the proportion of patients who can achieve a treatment-free remission after treatment discontinuation.

Place, publisher, year, edition, pages
Wiley: 12 months , 2015. Vol. 94, no 3, 243-250 p.
Keyword [en]
dasatinib; imatinib; randomized controlled trial; deep response; toxicity
National Category
Clinical Medicine
Identifiers
URN: urn:nbn:se:liu:diva-116957DOI: 10.1111/ejh.12423ISI: 000350357900008PubMedID: 25082346OAI: oai:DiVA.org:liu-116957DiVA: diva2:802098
Note

Funding Agencies|Bristol-Myers Squibb

Available from: 2015-04-10 Created: 2015-04-10 Last updated: 2017-12-04

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Dreimane, ArtaLotfi, Kourosh

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Department of Medical and Health SciencesDepartment of HaematologyFaculty of Medicine and Health SciencesDivision of Drug ResearchFaculty of Health SciencesDepartment of Clinical Pharmacology
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