Efficacy and safety of switching to nilotinib in patients with CML-CP in major molecular response to imatinib: results of a multicenter phase II trial (NILSw trial).

Abstract:

:We evaluated the efficacy and safety of switching to nilotinib in CML-CP patients who had achieved MMR with continuous detectable BCR-ABL1 transcript levels after long-term imatinib treatment. Patients who had achieved MMR, but not deep molecular response (DMR), after > 18 months from the initiation of imatinib received nilotinib 400 mg twice daily for up to 24 months. BCR-ABL1 transcript levels were assessed every 3 months. Thirty-eight patients with a median age of 57.5 years (range 22-76 years) were evaluated. Twenty-seven patients completed 24 months of nilotinib treatment; 11 discontinued nilotinib due to retraction of consent (three patients), loss of MMR (1), intolerance (3) or AEs (5). Twenty patients [52.6%, (90% CI 38.2-66.7%)] achieved DMR. The cumulative incidence of achieving DMR by the time of 3, 6, 9, 12, 15, 18, and 21 months was 22.9, 37.7, 47.0, 53.7, 53.7, 53.7, and 53.7%, respectively. Adverse events were consistent with those reported in other nilotinib studies. Patients experienced each of the following cardiovascular complications: atrial fibrillation (G2), chest tightness and dyspnea (G1), myocardial infarction (G2) and heart failure (G3) (n = 1 for each complication). This study indicates nilotinib achieves strong, rapid induction of DMR for patients who achieved MMR after long-term imatinib therapy.

journal_name

Int J Hematol

authors

Ishikawa J,Matsumura I,Kawaguchi T,Kuroda J,Nakamae H,Miyamoto T,Matsuoka KI,Shibayama H,Hino M,Hirase C,Kamimura T,Shimose T,Akashi K,Kanakura Y

doi

10.1007/s12185-018-2401-y

subject

Has Abstract

pub_date

2018-05-01 00:00:00

pages

535-540

issue

5

eissn

0925-5710

issn

1865-3774

pii

10.1007/s12185-018-2401-y

journal_volume

107

pub_type

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