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。6 g; n) \' G7 A' 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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6 {1 H4 s5 K; w% A) Y _; w作者:来自澳大利亚6 Y; F- W% K, K
来源:Haematologica. 2011.8.9.
8 [) B( b$ k9 m1 R3 M) |2 vDear Group,6 c4 M7 R" Q3 o, q$ T, L
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Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML
/ g! b2 m9 u$ e* \1 o$ vtherapies. Here is a report from Australia on 3 patients who went off Sprycel
; T. \; u z- X" O. F4 [2 Tafter stable molecular response (PCRU). 1 patient relapsed but 2/3 patients
' k. A4 X+ @& Z/ F+ c3 d9 q3 B% uremain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel
3 {' ^2 ]5 o$ B. Y% Kdoes spike up the immune system so I hope more reports come out on this issue.0 M6 \/ N# I& z" d! y
( }4 u3 `6 t: Q# m1 p3 R0 G4 ?6 TThe remarkable news about Sprycel cessation is that all 3 patients had failed0 t6 e8 O3 k5 B
Gleevec and Sprycel was their second TKI so they had resistant disease. This is
" S8 `3 K: x) B. S1 Sdifferent from the stopping Gleevec trial in France which only targets patients
+ G6 N x& s s7 a- q4 g( Vwho have done well on Gleevec.; ?# w# D. M0 x( |, n8 f$ c
* ]+ E7 h& h3 l8 L- s0 XHopefully, the doctors will report on a larger study and long-term to see if the6 N6 Y4 k9 {8 @( U1 `7 s- q% V
response off Sprycel is sustained.9 | Z5 l. l( J5 \7 B6 i' M
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Best Wishes,
% k: l2 G. f0 q2 |Anjana
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Haematologica. 2011 Aug 9. [Epub ahead of print]: `$ q' p! @0 f) a) R
Durable complete molecular remission of chronic myeloid leukemia following0 p! X, v3 d4 q" b' b2 W9 @
dasatinib cessation, despite adverse disease features.! m2 Y( U& d5 C% I
Ross DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.
2 l- V: _+ O N7 qSource
* q7 M3 G0 N) n& tAdelaide, Australia;' ?2 I8 j% V# z7 C- A2 B. C
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Abstract
7 S6 b9 M& T# qPatients with chronic myeloid leukemia, treated with imatinib, who have a
+ ~9 m. u) K8 R3 Y/ l* }, m/ J6 adurable complete molecular response might remain in CMR after stopping( z: `5 P' b! K8 ~/ Y
treatment. Previous reports of patients stopping treatment in complete molecular9 v; q9 d4 k/ g& ]
response have included only patients with a good response to imatinib. We0 @* {! x8 q9 p: r7 I# @, h
describe three patients with stable complete molecular response on dasatinib
( ]9 q5 C$ f2 b# E& S( Gtreatment following imatinib failure. Two of the three patients remain in
# ` p1 S: X) U | Ecomplete molecular response more than 12 months after stopping dasatinib. In; h, H7 x9 @: H1 \1 k. b) s
these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
7 ~- F* H! Q7 ^show that the leukemic clone remains detectable, as we have previously shown in
: t7 t% [/ y0 ^3 v; h4 nimatinib-treated patients. Dasatinib-associated immunological phenomena, such as
& R% o$ K. W, _6 f' jthe emergence of clonal T cell populations, were observed both in one patient' B4 V9 S5 s4 i: g$ \7 k6 @$ G9 t
who relapsed and in one patient in remission. Our results suggest that the4 v t/ m7 \+ }0 I6 d/ o y1 g; _/ f
characteristics of complete molecular response on dasatinib treatment may be
( Q/ n4 a4 z$ A5 n0 N) @. qsimilar to that achieved with imatinib, at least in patients with adverse
; v" }1 n8 K, Q* Y" {disease features.
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