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。/ Q6 A6 a+ L" M) k3 j; R
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
" T$ A" ^8 O* }来源:Haematologica. 2011.8.9.
4 ]+ t+ `/ o! Q5 F. a9 `, BDear Group,
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Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML
9 a* ~9 @& z$ U- E) ]5 Atherapies. Here is a report from Australia on 3 patients who went off Sprycel& t: t- Q6 D7 k6 @6 T2 x& X Q4 h9 a
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients4 o8 v k3 _# N1 U8 {3 V/ }
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel) P. }( j: ^ b
does spike up the immune system so I hope more reports come out on this issue.0 U9 g# P3 i+ ]
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The remarkable news about Sprycel cessation is that all 3 patients had failed
4 o9 z4 `2 q6 l+ h2 u7 J- nGleevec and Sprycel was their second TKI so they had resistant disease. This is0 @$ ?* Y/ q+ z* W, x$ i
different from the stopping Gleevec trial in France which only targets patients
( k& L5 F" p8 X- P: N# _2 O" ~6 N! o Bwho have done well on Gleevec.; ]& J- {, m) `$ T* C
$ F! p% B! p- jHopefully, the doctors will report on a larger study and long-term to see if the$ z$ B0 w+ h* A# a
response off Sprycel is sustained.5 y1 z" `; l9 ^" }/ d
$ O9 Q) U) q9 ?6 T# UBest Wishes,2 X5 c5 V; C4 M" y$ z. J, f9 _
Anjana
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, v: I0 w: K0 w9 K5 A. e1 R" l/ GHaematologica. 2011 Aug 9. [Epub ahead of print]
7 `' ]8 z/ R4 BDurable complete molecular remission of chronic myeloid leukemia following4 M! \0 s$ X2 E* v4 P2 Z
dasatinib cessation, despite adverse disease features.% Y* B) [) X$ l# `; T, u' t
Ross DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.
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5 [: B8 Q) d" ~Adelaide, Australia;
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! z7 V5 i) A: E4 n2 `Abstract
: h! ~* |! E, } ^0 E3 BPatients with chronic myeloid leukemia, treated with imatinib, who have a
$ X \( Q5 u4 I, _! p. I+ P( Ydurable complete molecular response might remain in CMR after stopping
9 _1 V1 Z. L& Q* ]( Qtreatment. Previous reports of patients stopping treatment in complete molecular
; f; \3 d! Q% i, o3 q: T9 cresponse have included only patients with a good response to imatinib. We
) I) `0 {$ t$ j5 g2 udescribe three patients with stable complete molecular response on dasatinib# Y6 v6 ?- j0 @$ N5 `+ z, F5 s
treatment following imatinib failure. Two of the three patients remain in
" ~! j' Z' Q4 X- Z9 V2 Hcomplete molecular response more than 12 months after stopping dasatinib. In
& o' q q) n" Z$ Q3 s, Y7 nthese two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
4 W, [' i+ K8 `) X }- H$ v& Ushow that the leukemic clone remains detectable, as we have previously shown in
# q, B& m: ~& X# n. Q9 I; timatinib-treated patients. Dasatinib-associated immunological phenomena, such as4 \/ p- [% |! ^2 x: }. }
the emergence of clonal T cell populations, were observed both in one patient
* o; I, O3 b' z9 Rwho relapsed and in one patient in remission. Our results suggest that the6 O* Q2 z. ~$ w& k' T
characteristics of complete molecular response on dasatinib treatment may be: C0 C2 L, T3 ]0 A: p: l% d, _5 K
similar to that achieved with imatinib, at least in patients with adverse
/ k5 p. g4 c- S: I+ vdisease features.
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