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。
) j5 F( V, P& d: S' W9 [# Z 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。: b k6 F M/ M
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作者:来自澳大利亚
( p- }8 q2 {2 Q来源:Haematologica. 2011.8.9.
. R: C0 m0 C& X5 j+ ~ P5 kDear Group,
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3 |' {1 c! Z7 ~8 C- H" ySome of you are on Dasatinib (Sprycel) and we wish to give news on all CML
# b" _( Q- W- b8 K8 f. z: e2 otherapies. Here is a report from Australia on 3 patients who went off Sprycel- \7 v! }! H" C+ i# E& c$ l/ _( l
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients# e; s$ P/ z" T$ N
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel6 |1 q6 y# i: l7 v+ `
does spike up the immune system so I hope more reports come out on this issue.
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& c- l6 A6 o# C2 ^* ~* dThe remarkable news about Sprycel cessation is that all 3 patients had failed
% p( D V% W; Y1 n* fGleevec and Sprycel was their second TKI so they had resistant disease. This is
; E2 c( }2 w' P) S: i1 Kdifferent from the stopping Gleevec trial in France which only targets patients
. ~& U' ]) @- t' F- v2 b, ?who have done well on Gleevec.
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Hopefully, the doctors will report on a larger study and long-term to see if the) K, w5 l! b; ~+ r
response off Sprycel is sustained.
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7 U+ F, ]% e* ~7 bBest Wishes,
! ?! l- N" R/ z J% O1 h# {* wAnjana8 H7 b3 I+ q, C' D
+ V, z5 O3 b! b7 r/ Z! v
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Haematologica. 2011 Aug 9. [Epub ahead of print]
6 u+ A3 ^ y: M2 V- PDurable complete molecular remission of chronic myeloid leukemia following8 d9 h4 B7 f" v3 [5 F
dasatinib cessation, despite adverse disease features.
+ z- x% i% o7 LRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.
" b4 p% ]; U3 U0 L# H, YSource2 [# x9 l" v2 s# l0 C$ U- s! Y
Adelaide, Australia;
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Abstract1 C5 L. o4 [- ~) M* a. L' M
Patients with chronic myeloid leukemia, treated with imatinib, who have a- e/ t9 F+ w. J' ^. w- [* d0 p
durable complete molecular response might remain in CMR after stopping: t3 C6 i s% i i2 y' O; V
treatment. Previous reports of patients stopping treatment in complete molecular
9 C6 G. Q( O* S# V$ K% ]$ [( aresponse have included only patients with a good response to imatinib. We+ J3 w) w1 R7 c; g# a5 i( m
describe three patients with stable complete molecular response on dasatinib
8 ~- L8 y& }2 g) {: J [. ftreatment following imatinib failure. Two of the three patients remain in5 b3 H& K7 W9 Z* p; M* u
complete molecular response more than 12 months after stopping dasatinib. In
7 ~. U9 m9 g% }. ?! G& ~these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
4 O' |3 |- ~4 w1 g1 a9 Y3 ]show that the leukemic clone remains detectable, as we have previously shown in
" K' t4 ~& B/ J' }/ w. _" _# f+ Nimatinib-treated patients. Dasatinib-associated immunological phenomena, such as
; D4 Y. R S i( F0 w& Zthe emergence of clonal T cell populations, were observed both in one patient, f' P+ ~: J; x n3 V1 ~
who relapsed and in one patient in remission. Our results suggest that the
/ Y2 P S5 u, h0 jcharacteristics of complete molecular response on dasatinib treatment may be
e% D" @: O$ Fsimilar to that achieved with imatinib, at least in patients with adverse
' Q) j' }% N: F9 N8 Zdisease features.: n$ J8 w% I. d' m5 d, w; _
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