| 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。 : @7 Q# F. w) \& ^7 h    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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 # O! l8 Y7 {8 K9 z9 G作者:来自澳大利亚
 4 Q& S9 Z7 t0 O: C1 \; L( i9 ^来源:Haematologica. 2011.8.9.4 n) G  `) K+ b  a* _$ X
 Dear Group,) F* h- N3 Z5 Z+ G) ]$ B
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 Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML/ R9 |6 `  K2 W- D( u
 therapies. Here is a report from Australia on 3 patients who went off Sprycel! [: @( r/ W3 p, Y, ]
 after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients
 ) l  v1 z9 `3 g( A- a* c6 L; Fremain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel
 V9 ~2 i; A1 D# A& i* k7 E; kdoes spike up the immune system so I hope more reports come out on this issue.$ a: _) }" R' _) p4 c' p3 G% A
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 The remarkable news about Sprycel cessation is that all 3 patients had failed
 8 ?/ m9 W8 b) L, J; @Gleevec and Sprycel was their second TKI so they had resistant disease. This is
 . ^* ^2 B. l, D2 ldifferent from the stopping Gleevec trial in France which only targets patients/ d; q! n9 E* _" u/ N9 G
 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
 % R$ t7 d0 K/ q' t9 v; |6 W% o$ ]response off Sprycel is sustained.
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 6 h( c5 R8 E' ^1 C) j# u0 [9 vBest Wishes,6 z6 u; P1 _8 P8 r; k: }2 U- O
 Anjana5 }' D. N  `/ g* g3 H% b
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 9 r4 }7 X. S6 zHaematologica. 2011 Aug 9. [Epub ahead of print]
 & j0 t  Y" F' r3 f) w& R$ ]Durable complete molecular remission of chronic myeloid leukemia following% t+ W: l( m9 F; n
 dasatinib cessation, despite adverse disease features.# {8 v5 F4 K; u; J! z* j: n- g9 ~
 Ross DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.1 Q; ?" e, j$ U8 \& K% @
 Source: P9 j! o0 [7 i# b5 _0 I- t
 Adelaide, Australia;
 $ ^8 X) T6 h* @9 o& W2 X# m! i  ~
 Abstract- ]. I$ d/ }0 `
 Patients with chronic myeloid leukemia, treated with imatinib, who have a
 8 ^& b1 n0 s; tdurable complete molecular response might remain in CMR after stopping. T( v% {/ C4 S
 treatment. Previous reports of patients stopping treatment in complete molecular
 9 |& N4 E3 j! h: _" |5 C+ a! uresponse have included only patients with a good response to imatinib. We& D* h2 y0 M9 B# |+ T
 describe three patients with stable complete molecular response on dasatinib* J' X% b& a4 ?" x0 T
 treatment following imatinib failure. Two of the three patients remain in
 " n: |, F& [5 \& a0 a% n% Lcomplete molecular response more than 12 months after stopping dasatinib. In
 # T6 x7 N4 w/ B  Rthese two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
 5 ^1 r: _7 k  A% m# o0 Rshow that the leukemic clone remains detectable, as we have previously shown in2 o+ k6 K; u- g5 y! v# Q  Q' Y
 imatinib-treated patients. Dasatinib-associated immunological phenomena, such as. N3 [$ }' x/ F* V% j+ b
 the emergence of clonal T cell populations, were observed both in one patient# K; r% t2 d, N0 v6 s% `
 who relapsed and in one patient in remission. Our results suggest that the
 & T1 B- a6 S& x$ N1 c/ W8 l% u: Rcharacteristics of complete molecular response on dasatinib treatment may be. o' X4 W9 r# Y6 _" r
 similar to that achieved with imatinib, at least in patients with adverse
 $ s4 c- K0 s' O* Z3 X* `5 l/ Zdisease features.
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