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。
9 v9 v9 D2 d7 R& }, A; [ 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 w8 `3 f+ b4 c" F* w- R来源:Haematologica. 2011.8.9.
9 G# V' y9 [ ^$ k( i& W [Dear Group,6 Q' p; V3 _" v9 |
; [- N- q# H, e& t# d7 MSome of you are on Dasatinib (Sprycel) and we wish to give news on all CML
: y! }! t8 e7 a0 Gtherapies. Here is a report from Australia on 3 patients who went off Sprycel, P' l, f3 S& }) N* F( Q* ~
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients$ B. d+ ~+ R7 m0 @
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel
3 R% q- _% U3 s7 p+ ]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* f5 g2 d) |4 b& e
Gleevec and Sprycel was their second TKI so they had resistant disease. This is: X# D) B, h: r8 K
different from the stopping Gleevec trial in France which only targets patients
2 ?7 z: _4 i% |who have done well on Gleevec.! s& K3 d) d/ _
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Hopefully, the doctors will report on a larger study and long-term to see if the
8 W7 `1 Y; X6 B0 m, Rresponse off Sprycel is sustained.9 d+ i, [# N. q3 r7 j. E
% P& ^3 S7 `# ^6 l) ^- O8 D. |Best Wishes,8 Y2 f/ I; Z: R; I0 z# X7 B
Anjana* R" `& U3 s4 L$ R$ W
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Haematologica. 2011 Aug 9. [Epub ahead of print]# ~4 ~4 s F8 q5 g8 W: }
Durable complete molecular remission of chronic myeloid leukemia following9 d [4 @, y+ D6 F# a# e
dasatinib cessation, despite adverse disease features.& m/ z8 ]" ~; c5 w+ }2 U
Ross DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.
7 n; }7 a* e( D9 _' P; o1 qSource
' u4 m5 v7 }* I& ]Adelaide, Australia;, f+ T% p# @9 L2 B
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Abstract
. r" u. z K, }8 VPatients with chronic myeloid leukemia, treated with imatinib, who have a
9 T; r5 F. u) d# E. D$ |8 cdurable complete molecular response might remain in CMR after stopping# R* R$ j) J. N% @( ?
treatment. Previous reports of patients stopping treatment in complete molecular
/ R; j' {1 o7 l9 n, ]# w3 presponse have included only patients with a good response to imatinib. We2 {% ~& m/ U2 P1 [# `: L: S
describe three patients with stable complete molecular response on dasatinib
" ]- R( y- q5 b( [* O# c$ d# `. Ttreatment following imatinib failure. Two of the three patients remain in
7 b: V* d% c1 Ocomplete molecular response more than 12 months after stopping dasatinib. In, ^) ]9 u' F) M
these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
! S9 I: l0 Q6 c; X+ a2 Kshow that the leukemic clone remains detectable, as we have previously shown in
' l1 y: h0 h6 u5 n) g* |0 ~imatinib-treated patients. Dasatinib-associated immunological phenomena, such as: K& v: `! ~& A: |' ^! S
the emergence of clonal T cell populations, were observed both in one patient8 r' S& {) x! V5 C
who relapsed and in one patient in remission. Our results suggest that the
3 J/ z# b5 C* ycharacteristics of complete molecular response on dasatinib treatment may be3 t: W" l' X) o
similar to that achieved with imatinib, at least in patients with adverse! v' O7 U6 `/ U- g, X* _
disease features.
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