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。/ \' v& z0 [1 [" c* Q
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。4 }7 s9 }2 h% s/ m
4 p" t8 M( \; I1 k- a- z作者:来自澳大利亚
) `) `7 i) T$ u来源:Haematologica. 2011.8.9.' q( H* f- z# ?/ A6 `
Dear Group,
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Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML7 M* Y, Q a& ]/ c! [* m
therapies. Here is a report from Australia on 3 patients who went off Sprycel' j* K {/ \& X$ p9 y W
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients. z' m1 A+ Y% D% y
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel
; f) S* n. H8 }3 [# L1 m7 adoes spike up the immune system so I hope more reports come out on this issue.# m9 K/ {. c+ R2 z' y
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The remarkable news about Sprycel cessation is that all 3 patients had failed/ ^+ m! g$ q9 p- E
Gleevec and Sprycel was their second TKI so they had resistant disease. This is
" ?3 S( Y1 y0 k: {) w9 H2 R& Y( P( _! Hdifferent from the stopping Gleevec trial in France which only targets patients
1 h) Z, g) {! ewho have done well on Gleevec.
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! S5 h6 B# S2 C; }Hopefully, the doctors will report on a larger study and long-term to see if the t. q# b! w: H1 X. K
response off Sprycel is sustained.. p; i3 {9 ~+ b! u/ p( P" A. t
0 ]+ R' W( e+ |# v. mBest Wishes,
2 j, X# }3 J2 P' e/ j0 T, |( RAnjana+ E2 c" X- r+ g4 p/ s% C
8 Z( m5 f- {9 s8 j+ J
# w, Q0 J7 R/ z7 D9 `
- d) o1 p- Q2 D: VHaematologica. 2011 Aug 9. [Epub ahead of print]
) i' M8 k2 k R. Y' tDurable complete molecular remission of chronic myeloid leukemia following
]8 |4 ~5 Q& o; ]" @dasatinib cessation, despite adverse disease features.
$ U+ C4 y" F7 Y- v, MRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.) B* r" n- _; j3 T( m' a
Source$ @" D7 z/ o% Z1 ^
Adelaide, Australia;
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* ]" J* x1 o/ @: i- [* @Abstract2 E, u. ?( s. e; \ Y
Patients with chronic myeloid leukemia, treated with imatinib, who have a
3 y, h# V! L3 u; z9 j' Mdurable complete molecular response might remain in CMR after stopping- c n/ L/ r8 l% E" ]
treatment. Previous reports of patients stopping treatment in complete molecular
3 n; A' p% `2 u# vresponse have included only patients with a good response to imatinib. We
, Q; ]% g' [: v8 _: Fdescribe three patients with stable complete molecular response on dasatinib
2 }+ V0 x3 n4 n9 h0 U) U# Streatment following imatinib failure. Two of the three patients remain in
8 o1 L ?6 G P# _, a9 ncomplete molecular response more than 12 months after stopping dasatinib. In
z0 W5 q6 g8 h- w* B$ Y$ {$ n% Cthese two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
" f; Q! _/ L, w8 [( d9 ~# @0 w# Qshow that the leukemic clone remains detectable, as we have previously shown in
# A' c) ~" S/ V6 d7 C }imatinib-treated patients. Dasatinib-associated immunological phenomena, such as1 f- U3 U0 Y5 g& N, \8 i
the emergence of clonal T cell populations, were observed both in one patient) W' J4 H w* B8 p
who relapsed and in one patient in remission. Our results suggest that the
+ c1 {( A$ G, ^5 i( ?characteristics of complete molecular response on dasatinib treatment may be
8 d- U% h6 |$ M1 W! x' K4 Usimilar to that achieved with imatinib, at least in patients with adverse
- d/ P. v0 E, Adisease features." b! r# j) W7 \+ l
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