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。! F \- V6 k! L4 c1 \7 j% N2 `
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。. b: K+ @; o8 I5 M5 G' p1 h
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作者:来自澳大利亚+ p; }9 F, q7 J4 ~. C
来源:Haematologica. 2011.8.9.
# `0 Z. q8 l2 l6 z o! A- n$ O* t) oDear Group,
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Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML
7 W/ w: w) J z% wtherapies. Here is a report from Australia on 3 patients who went off Sprycel" R. f h) ?0 w1 ?" M; ]2 s
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients
6 f, }1 }; k1 a: C9 _' mremain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel4 ]2 l/ C; y$ E% H5 }( T( i6 R
does spike up the immune system so I hope more reports come out on this issue.
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1 U6 D% B/ K C) j3 R2 H3 IThe remarkable news about Sprycel cessation is that all 3 patients had failed
7 J8 O3 E7 B8 ~, n& DGleevec and Sprycel was their second TKI so they had resistant disease. This is" c# R2 L( q) X. X
different from the stopping Gleevec trial in France which only targets patients* q0 f X4 Z |) H* Y
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 the2 m/ G+ J7 L3 H! I) S
response off Sprycel is sustained.+ u. L- t& _$ m" f) \" t
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Best Wishes,7 r/ t* D( U5 C( K4 P
Anjana' B# H. P4 Q0 q5 z4 ?- t. F+ z
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Haematologica. 2011 Aug 9. [Epub ahead of print]) Q3 e2 I0 b$ y6 I
Durable complete molecular remission of chronic myeloid leukemia following% F) y; l8 f. t! h- i5 T( j
dasatinib cessation, despite adverse disease features.$ e- h( P( Y4 D4 }9 v7 ?: H* j
Ross DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.. I4 E; B# G Y3 y9 @7 |% T( h
Source4 [" ]5 P8 R# c* S' S
Adelaide, Australia;+ t7 l; z; Q0 v L6 M$ b
3 q4 N3 y+ l" QAbstract ~+ L. M; k' n3 U1 K G/ W
Patients with chronic myeloid leukemia, treated with imatinib, who have a1 z9 o' N$ w6 u6 x* M# Z- C) F, W! B
durable complete molecular response might remain in CMR after stopping
: n6 F; n, C3 {5 b) q6 Q7 Ztreatment. Previous reports of patients stopping treatment in complete molecular
: O3 Y# s4 ]' @) _) f6 dresponse have included only patients with a good response to imatinib. We% ]9 Y( r. c9 X# |" T: ~
describe three patients with stable complete molecular response on dasatinib$ A5 [, t5 ]: q1 A+ g- h. }
treatment following imatinib failure. Two of the three patients remain in* S/ T9 _. n1 K4 k2 d
complete molecular response more than 12 months after stopping dasatinib. In- F/ ]. ?+ c* K; Q _
these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
8 z* [8 ^, n hshow that the leukemic clone remains detectable, as we have previously shown in+ S' U i$ s1 B) ~1 u# J. X
imatinib-treated patients. Dasatinib-associated immunological phenomena, such as6 X3 m+ Z% i& \' O. R9 t, Z8 w
the emergence of clonal T cell populations, were observed both in one patient- F- [; P. I, j1 F) O$ Z" D; {
who relapsed and in one patient in remission. Our results suggest that the
- s5 P8 @" [3 q1 h* {0 K& b' f; \characteristics of complete molecular response on dasatinib treatment may be+ \1 I I0 N! H; g7 i
similar to that achieved with imatinib, at least in patients with adverse9 f: C8 O5 k' D! Q0 s; X: ^( J- S
disease features.; w' F2 P7 H, B2 s+ E
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