摘要:这3名患者在取得稳定的分子学缓解之后(融合基因转阴PCRU)停用达沙替尼。1名患者复发,另外两名患者在1年后仍保持了PCRU。以前说过,达沙替尼确实可以提高免疫力,希望今后能获得更多的相关研究报告。
" q: x" D/ I! s& b8 \ 关于这个研究值得注意的是,这三名患者都是服用格列卫失败后转用达沙替尼的,也即他们对格列卫是耐药的。这与法国的格列卫停药研究又有所不同,那个研究中的患者都是对格列卫反应良好的。希望医生们能扩大研究长期观察,看看停用达沙替尼是否能持久不复发。
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) ^7 C; g8 {3 d- y& W作者:来自澳大利亚
* D4 y, y' D0 T& m6 h6 j+ r来源:Haematologica. 2011.8.9.
7 A W4 m2 E. W, A' pDear Group,
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Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML
& ^8 ^1 f" _/ ^6 C, {/ ]therapies. Here is a report from Australia on 3 patients who went off Sprycel
# `! b7 I3 p) O+ cafter stable molecular response (PCRU). 1 patient relapsed but 2/3 patients
6 S7 i" Z6 ~9 E: Sremain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel% h3 G- D( P& A9 c% S
does spike up the immune system so I hope more reports come out on this issue.
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The remarkable news about Sprycel cessation is that all 3 patients had failed
J/ l" S( A6 v( R) [' YGleevec and Sprycel was their second TKI so they had resistant disease. This is% N$ p+ o9 S0 @# L) h
different from the stopping Gleevec trial in France which only targets patients
( `/ G' q2 C+ _+ E" X) p: L# {) ^6 zwho have done well on Gleevec.5 D3 v& L1 s; b- P7 z: P3 Y# J1 n5 t4 h
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Hopefully, the doctors will report on a larger study and long-term to see if the& h/ l; o1 ?5 q6 \: t
response off Sprycel is sustained.' C, T2 \ Q; }3 v0 E2 C
2 `. k" U, u' A3 ^# G' pBest Wishes,
, o8 W. C/ h$ }1 tAnjana
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% t5 ~" ?0 V6 wHaematologica. 2011 Aug 9. [Epub ahead of print]. B+ W; R4 `, n) \) q3 L ]
Durable complete molecular remission of chronic myeloid leukemia following
7 i7 W/ V% L- Y y- edasatinib cessation, despite adverse disease features.
/ Y" m- @8 R0 \- e- e0 qRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.
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Adelaide, Australia;+ K5 k0 X: z; i. S( l
: U! R, L) g' h: x" l2 h, k3 |Abstract
, P% h( z: _4 \4 D5 o& vPatients with chronic myeloid leukemia, treated with imatinib, who have a
7 Z- c1 n* i* T$ K, e8 Ydurable complete molecular response might remain in CMR after stopping
! Q f* X4 y9 w* l8 Ytreatment. Previous reports of patients stopping treatment in complete molecular, b9 H6 I( m- h! w$ v/ v! U
response have included only patients with a good response to imatinib. We9 E0 k* m% t8 W9 h* q7 O
describe three patients with stable complete molecular response on dasatinib
% G" e5 b. ^. Rtreatment following imatinib failure. Two of the three patients remain in' L+ V I( }7 k9 l/ {
complete molecular response more than 12 months after stopping dasatinib. In
) a$ e p7 k% K1 i, othese two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
9 I% W9 p* S1 z( |1 \& Bshow that the leukemic clone remains detectable, as we have previously shown in
9 J7 @; y* {! `& b* l- t/ p" Ximatinib-treated patients. Dasatinib-associated immunological phenomena, such as
" F8 j0 G8 Q, P4 jthe emergence of clonal T cell populations, were observed both in one patient
6 c+ m7 z+ E. R0 z% z$ ^who relapsed and in one patient in remission. Our results suggest that the! O. n/ k2 H7 h8 R( F& l
characteristics of complete molecular response on dasatinib treatment may be
/ b8 m0 v! G( R& Tsimilar to that achieved with imatinib, at least in patients with adverse8 \- \4 {' i6 a { G1 ?5 h0 ?
disease features." U% [0 V( Z& x, s% s) A
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