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。
% e! x, g0 z/ g Q( 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。$ s- G! F/ f f# ~- a
3 U( a- u# Z& Z. X1 ~& l作者:来自澳大利亚
7 t1 P _! M2 ?来源:Haematologica. 2011.8.9.
A, b2 e1 v0 s/ z) C) L' A9 cDear Group,
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Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML
i9 h" `& n( W0 D; Ntherapies. Here is a report from Australia on 3 patients who went off Sprycel
9 P1 }! x/ F, l/ B0 L$ Vafter stable molecular response (PCRU). 1 patient relapsed but 2/3 patients
9 N I# o8 @5 Z! j0 }remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel* p! c& n- q/ m& D$ q8 Y/ u
does spike up the immune system so I hope more reports come out on this issue.$ u( C+ ^: f# u+ \8 g/ q
" \! i0 _1 ], U0 i7 m1 DThe remarkable news about Sprycel cessation is that all 3 patients had failed
% V# Q3 g/ U- Y! E* rGleevec and Sprycel was their second TKI so they had resistant disease. This is) m1 f& t5 p/ Z2 I$ Y& d7 H
different from the stopping Gleevec trial in France which only targets patients; e- p' z* f) W. m, @) O
who have done well on Gleevec.
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n/ ^! @3 o. j& W3 x- x) s( p; u$ iHopefully, the doctors will report on a larger study and long-term to see if the
' Q. X3 P/ _- {2 v9 B9 ?% {response off Sprycel is sustained.
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Best Wishes,& `* C7 D6 q1 u1 c
Anjana5 M% w6 Z" \- @! X8 A) q
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Haematologica. 2011 Aug 9. [Epub ahead of print]1 \- p9 c& U7 n. Y
Durable complete molecular remission of chronic myeloid leukemia following
) Y w; A, a8 K0 G# F2 `dasatinib cessation, despite adverse disease features.
* W4 X0 `5 x' w. g; z& v. mRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.
" J1 U. u9 Q! T) ~# Y7 ZSource% V* c8 Z& Q0 X' K0 E% |
Adelaide, Australia;! h+ x8 C! M# U, M. B+ K3 m
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Abstract K, C* [( y' S- t% I! o5 e
Patients with chronic myeloid leukemia, treated with imatinib, who have a$ M7 Z6 ^1 Q) |9 H
durable complete molecular response might remain in CMR after stopping
8 A! \6 h3 {* b7 T Itreatment. Previous reports of patients stopping treatment in complete molecular
6 n4 b- Z6 W B: l2 Zresponse have included only patients with a good response to imatinib. We% ?# e; c) n3 U- K5 T
describe three patients with stable complete molecular response on dasatinib
% m7 `8 j# N4 J0 P( {treatment following imatinib failure. Two of the three patients remain in* R" ^6 i' u/ p; L! [
complete molecular response more than 12 months after stopping dasatinib. In' h9 o3 ?! [4 K( L( X( Y
these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to4 H- x% A) }- z
show that the leukemic clone remains detectable, as we have previously shown in7 ^# C% ]- U. w' y
imatinib-treated patients. Dasatinib-associated immunological phenomena, such as. S. \% `3 L" y. ]
the emergence of clonal T cell populations, were observed both in one patient
! @' E% F# X2 g( M( J& ^* hwho relapsed and in one patient in remission. Our results suggest that the2 W) h; v% j f2 k0 C7 J7 J1 |/ M
characteristics of complete molecular response on dasatinib treatment may be
8 e! Z4 }0 V9 O/ q2 U) w) ~: msimilar to that achieved with imatinib, at least in patients with adverse
& ]& u4 i& s- l& j" Ndisease features.
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