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。
% s% R2 l4 l& ^0 l( X& t- V 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。* C6 A0 C2 }' [ f5 }
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作者:来自澳大利亚; a8 x+ ~# d) R f" }& i, P
来源:Haematologica. 2011.8.9., N* f5 n9 S. D$ W$ f# \( e
Dear Group,
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Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML) K9 b5 P$ E. j( `! E/ T! }
therapies. Here is a report from Australia on 3 patients who went off Sprycel' |8 W0 X! ~0 ^5 _7 M v- ]) `4 y
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients2 Z- |1 U1 l' W: k
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel' i7 i7 S1 l, l/ f$ a
does spike up the immune system so I hope more reports come out on this issue.
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3 I, q8 Y) T, I' n! MThe remarkable news about Sprycel cessation is that all 3 patients had failed
$ y0 T/ H7 ?9 i/ d+ T- H! ^Gleevec and Sprycel was their second TKI so they had resistant disease. This is- e2 V4 _1 g0 I4 q9 U$ _5 O% W
different from the stopping Gleevec trial in France which only targets patients
8 p5 h" c/ q4 |/ h/ Uwho have done well on Gleevec." J, G! n z4 e$ Q
+ U1 r% I/ A, x, t% J# O0 `( P4 Y0 [8 NHopefully, the doctors will report on a larger study and long-term to see if the
% l& w O P6 fresponse off Sprycel is sustained.
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: S" F, a5 z1 H& ?# WBest Wishes,
: t9 `; K! r8 N9 PAnjana
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Haematologica. 2011 Aug 9. [Epub ahead of print]
5 k' P8 G3 N8 T$ `. Z3 dDurable complete molecular remission of chronic myeloid leukemia following! V% @% o2 F0 ?- Z1 l
dasatinib cessation, despite adverse disease features.
9 C/ i& F+ N4 z+ ?: u' k* eRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.' V6 y, J8 }2 W2 T) X" Q3 @
Source' i6 S' z: X* ?) _: s$ r+ Z
Adelaide, Australia;
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Abstract
. _* u2 s: s, K8 T3 i1 pPatients with chronic myeloid leukemia, treated with imatinib, who have a
0 N5 a: S+ w, f; t: hdurable complete molecular response might remain in CMR after stopping; w& y6 i/ t5 F) T7 Y( v" \
treatment. Previous reports of patients stopping treatment in complete molecular6 i. n6 D' @6 k' X& f4 F# }9 b3 |
response have included only patients with a good response to imatinib. We
% B" v1 Y V( c% b( I' _$ N0 ]& Ydescribe three patients with stable complete molecular response on dasatinib5 A: x; x& G+ W8 H
treatment following imatinib failure. Two of the three patients remain in/ j$ d) b/ @- Q
complete molecular response more than 12 months after stopping dasatinib. In
0 w+ J* O! P7 n2 E/ `these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
* r4 E4 z4 {; S6 \# f( \" Sshow that the leukemic clone remains detectable, as we have previously shown in
6 B# }. O+ M- W0 y( J: R+ v- _imatinib-treated patients. Dasatinib-associated immunological phenomena, such as
0 B" c$ @2 F4 w. `* [4 @! Dthe emergence of clonal T cell populations, were observed both in one patient# m0 p$ r( _: U
who relapsed and in one patient in remission. Our results suggest that the
& G. i+ M" Z: D& ]characteristics of complete molecular response on dasatinib treatment may be
% [1 Q6 h2 f( G0 \# y5 ^# c- E( xsimilar to that achieved with imatinib, at least in patients with adverse
: e& }% o) }4 e8 G( |6 {- R$ M# Wdisease features.
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