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。) d7 l; _# B# E" G
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。* @" n+ j9 P ]
, {2 `' Z& M) h8 a$ p作者:来自澳大利亚
- ^( D7 `) F& v1 e来源:Haematologica. 2011.8.9.
1 K& _0 l3 W- C0 {: K- oDear Group,
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; p6 O% p9 ?0 J8 }# MSome of you are on Dasatinib (Sprycel) and we wish to give news on all CML
6 ~" a% z& l: t3 B6 D6 M6 {therapies. Here is a report from Australia on 3 patients who went off Sprycel+ n+ P* I4 M, e# Z
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients( X! W# N9 ?0 j; [, B
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel
0 p. {. R! a( X1 l' F: L; fdoes spike up the immune system so I hope more reports come out on this issue., b$ Q$ T- m0 A- n, x
& D9 q& W; a5 V1 d4 ~ K% [ C0 v
The remarkable news about Sprycel cessation is that all 3 patients had failed: x, p% Q2 ]& G
Gleevec and Sprycel was their second TKI so they had resistant disease. This is
& i$ [9 u. k$ ]+ Odifferent from the stopping Gleevec trial in France which only targets patients1 E* X3 y8 A x
who 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
0 L0 i' \4 Y/ Q( o* Iresponse off Sprycel is sustained.; E! g' K6 e7 ?: e0 n% ^2 p' {: T: p
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Best Wishes,$ @9 ` r: p a" Y& S" u- Q9 A( w' f
Anjana& V2 J `8 Q0 \$ N4 P0 D
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1 c2 A/ y4 f5 y- m# i- I$ K7 t- OHaematologica. 2011 Aug 9. [Epub ahead of print]" N6 F1 f) Q0 ^+ o) `6 y+ K
Durable complete molecular remission of chronic myeloid leukemia following
9 M- ?% r- P. [# Udasatinib cessation, despite adverse disease features.
; m2 X6 {+ T; J3 W* GRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.2 N1 |1 J# r6 v- {
Source) p- x7 Z/ P R2 c
Adelaide, Australia;' x9 o2 ?* C' _5 O! i+ o& E) ~& ]; j
; p5 n3 a) }4 Z: [
Abstract
' z' E* a7 ~" T( PPatients with chronic myeloid leukemia, treated with imatinib, who have a& }+ }* `+ C+ P6 c: ]
durable complete molecular response might remain in CMR after stopping
5 \" p* ?, U" ttreatment. Previous reports of patients stopping treatment in complete molecular* ]. d/ x6 C% F; ^$ y4 D% X/ U/ y
response have included only patients with a good response to imatinib. We4 A& c- v$ @1 Q2 S
describe three patients with stable complete molecular response on dasatinib: I) [- F; b$ g# n
treatment following imatinib failure. Two of the three patients remain in
, q) O) k% t) C! X* S( Icomplete molecular response more than 12 months after stopping dasatinib. In2 `/ ^1 [% A: i" `% R( p
these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to& W3 P6 t% U* `% i
show that the leukemic clone remains detectable, as we have previously shown in. {9 g& _3 A& w% `) C7 Z: t
imatinib-treated patients. Dasatinib-associated immunological phenomena, such as
* B) R: `( w3 A1 S+ m6 ithe emergence of clonal T cell populations, were observed both in one patient
: d* o! e. [' Kwho relapsed and in one patient in remission. Our results suggest that the
$ M7 X% a9 o8 Z- kcharacteristics of complete molecular response on dasatinib treatment may be
4 s6 P* y: O+ D5 ?similar to that achieved with imatinib, at least in patients with adverse
2 q, c# N/ ]1 E4 g: hdisease features.5 Q1 l. {3 O* t9 X( A6 ~
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