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。
" M8 l, R7 q5 G1 m* P 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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作者:来自澳大利亚
2 L' w3 v& r8 v7 P* {" v来源:Haematologica. 2011.8.9.
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* g5 p5 d7 l" USome of you are on Dasatinib (Sprycel) and we wish to give news on all CML
6 j+ b3 U+ ^/ qtherapies. Here is a report from Australia on 3 patients who went off Sprycel9 X3 y! d5 V. D' s+ g: x. y
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients; Y7 \# ], H# `! g! C! ~
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel0 i/ _& r% @6 t- I
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
. ^& N3 l5 P3 qGleevec and Sprycel was their second TKI so they had resistant disease. This is
7 d2 x0 C% J, f7 A! ? Idifferent from the stopping Gleevec trial in France which only targets patients9 L" u* Z2 ?+ l; m% u& M; N
who have done well on Gleevec.0 i$ i9 q$ V5 l
. _0 ^1 m" G; m! M. C1 j6 {3 |Hopefully, the doctors will report on a larger study and long-term to see if the
; ~1 _7 w( B4 Nresponse off Sprycel is sustained.
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Best Wishes,' W* @, S `+ b5 F, O& T& G1 ^
Anjana
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/ m6 G0 M# u1 lHaematologica. 2011 Aug 9. [Epub ahead of print]) T$ A' U, w: n5 L* s
Durable complete molecular remission of chronic myeloid leukemia following( U8 c9 z2 E& r9 E& `: w
dasatinib cessation, despite adverse disease features.1 T& y' u! B5 r. W Z1 U
Ross DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP./ J! {# b' U- H% q: K6 v0 n5 _
Source
( e' k+ t& O r6 {8 z2 V) WAdelaide, Australia;
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Abstract
, Q4 p! n" Y3 k! XPatients with chronic myeloid leukemia, treated with imatinib, who have a
1 l# f8 w" w4 f7 b/ G; Cdurable complete molecular response might remain in CMR after stopping( b) K- R2 \# g. O7 g( o c! d
treatment. Previous reports of patients stopping treatment in complete molecular
5 W9 N! n& H1 O/ m4 E- Bresponse have included only patients with a good response to imatinib. We
( D/ E- Q- e/ X2 v/ J4 w mdescribe three patients with stable complete molecular response on dasatinib$ r: Q. ^! I: h% M# h) B d2 t4 f
treatment following imatinib failure. Two of the three patients remain in
; {4 |& S: P3 ]complete molecular response more than 12 months after stopping dasatinib. In% r% {. ?) J& I* @& f1 c7 L S. H
these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
& I$ z$ D! x7 ~9 }# K3 qshow that the leukemic clone remains detectable, as we have previously shown in
: L+ |2 y. F. Y- D+ G9 Gimatinib-treated patients. Dasatinib-associated immunological phenomena, such as' u `( ?5 i3 p$ B
the emergence of clonal T cell populations, were observed both in one patient
! y( g% o: ~' x% i: L/ Y) ]7 @who relapsed and in one patient in remission. Our results suggest that the
# m8 U; c& p$ scharacteristics of complete molecular response on dasatinib treatment may be
4 Y) x% ]1 {: ~) C! Osimilar to that achieved with imatinib, at least in patients with adverse
4 u: F4 u3 e/ y! H( jdisease features.
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