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。
$ o/ B- @0 Y( W 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
6 O3 w5 P* z, d5 L, M7 G来源:Haematologica. 2011.8.9." |$ T1 p& z" U9 |/ ^5 c
Dear Group,
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Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML2 n& t4 U i0 o& W A) E: ~/ H/ P
therapies. Here is a report from Australia on 3 patients who went off Sprycel
y9 h' h: l% H fafter stable molecular response (PCRU). 1 patient relapsed but 2/3 patients
1 ]1 A4 u! @- i; R; M$ nremain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel6 S- X' i% A- d& Q5 m* J
does spike up the immune system so I hope more reports come out on this issue.; {( M; J' v# e
$ k) n; a- j8 b% \The remarkable news about Sprycel cessation is that all 3 patients had failed
4 ^" e) F: v# \% VGleevec and Sprycel was their second TKI so they had resistant disease. This is
% S4 @; X- A ~8 e( m' p1 P7 w; Mdifferent from the stopping Gleevec trial in France which only targets patients
2 ^; p- D- @4 D' Zwho 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( u' e- o# K/ X: D% w1 i( O9 o4 a5 T
response off Sprycel is sustained.: C2 ~0 F f( L- u( V
: B* m' ~2 A3 H& Q( p6 fBest Wishes,2 y! B) z5 s7 F% w
Anjana
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5 J& g; B; c' Z3 i( w: A, U& UHaematologica. 2011 Aug 9. [Epub ahead of print]
# g! \1 }: c) h3 hDurable complete molecular remission of chronic myeloid leukemia following- H: ]7 F3 `% x3 ~
dasatinib cessation, despite adverse disease features.. j* E0 K: _( l l' z* a7 A
Ross DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.1 v$ n. v! }+ J9 r% L' g. U% X
Source
% ~! Q' c9 x( N0 E1 T9 s/ F! EAdelaide, Australia;
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$ N3 ~4 n* x/ v! k; T7 vAbstract: y, q- q. n& c; O! D' n
Patients with chronic myeloid leukemia, treated with imatinib, who have a
; q& I- \ d/ Odurable complete molecular response might remain in CMR after stopping( l' g. C* ~: A6 {6 G
treatment. Previous reports of patients stopping treatment in complete molecular
' F& ~, i6 ~1 \response have included only patients with a good response to imatinib. We
, i% O; u) s5 b9 m9 Cdescribe three patients with stable complete molecular response on dasatinib3 a0 K& I; |3 g* z# n6 O% T0 R4 f
treatment following imatinib failure. Two of the three patients remain in$ N; {- y8 z4 v; O; ~
complete molecular response more than 12 months after stopping dasatinib. In
- k' A0 X) R2 ]7 V# B7 v8 ^these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to3 w1 f- \% l( t: i2 f0 b( [
show that the leukemic clone remains detectable, as we have previously shown in
1 V/ R3 [5 M6 V9 Y6 Limatinib-treated patients. Dasatinib-associated immunological phenomena, such as. z+ E" I. M+ M: |. e L
the emergence of clonal T cell populations, were observed both in one patient
+ P# b$ A4 @( u& V9 U$ W( A Pwho relapsed and in one patient in remission. Our results suggest that the
% P2 B. u# R" J; e! Hcharacteristics of complete molecular response on dasatinib treatment may be5 B0 j5 W9 f" N5 i7 X3 e+ m
similar to that achieved with imatinib, at least in patients with adverse
6 }# y; N8 s) y) ]disease features.# Z( ^; ]' C& G: l1 W
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