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。
9 R3 F9 H* Z( M: a- {( t 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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5 @5 Z& q. q2 c作者:来自澳大利亚
9 y: O2 J/ y H来源:Haematologica. 2011.8.9." _/ {+ r* t7 o
Dear Group,9 I$ J+ ~5 W, E" K
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Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML# k: m- @( o/ ?% _/ c
therapies. Here is a report from Australia on 3 patients who went off Sprycel8 g# X/ B2 ]$ ?% }/ ^1 r+ i
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients
# q) a n5 Z! r; }0 c* [6 ^remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel: f2 g9 |- i- c4 B- n; r
does spike up the immune system so I hope more reports come out on this issue.; C' z0 r: b! t
( {7 u( [1 X7 n! NThe remarkable news about Sprycel cessation is that all 3 patients had failed' E, _1 h( w' g) r" S' r8 w/ m: s
Gleevec and Sprycel was their second TKI so they had resistant disease. This is
4 s& F2 G& U6 }8 s7 V/ hdifferent from the stopping Gleevec trial in France which only targets patients
' k; n1 w) {9 H. X+ w/ Xwho have done well on Gleevec.
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; x0 h5 o% M9 G/ qHopefully, the doctors will report on a larger study and long-term to see if the
2 n2 \. S& A2 M8 ?0 H4 E5 H' M5 H5 zresponse off Sprycel is sustained.0 w6 K7 O0 G# ?$ y
1 |6 d$ x; ~. A5 P2 R6 c
Best Wishes,( l5 G8 i7 [; d" |
Anjana
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6 s A2 f3 T5 g$ J6 v7 v& K
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Haematologica. 2011 Aug 9. [Epub ahead of print]/ E& {7 J3 A8 l5 ?0 ]9 R% }
Durable complete molecular remission of chronic myeloid leukemia following
( l1 } i6 @; w. e, W# N* Udasatinib cessation, despite adverse disease features.
b$ M# `& `. L# t9 g1 vRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.% g+ E! i! A5 n
Source
$ g( F! n3 Y4 }/ s! g, I4 VAdelaide, Australia;0 M0 x2 F6 n3 h4 P5 Z" N' E% @
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Abstract+ B' ]& p/ c# W" K
Patients with chronic myeloid leukemia, treated with imatinib, who have a6 F* U0 k2 |5 |) M0 e) d
durable complete molecular response might remain in CMR after stopping
! ]* f/ S9 u. U5 B) J4 Ztreatment. Previous reports of patients stopping treatment in complete molecular* L2 Z* U) R% c$ w
response have included only patients with a good response to imatinib. We0 g: n4 s5 R% z0 ^2 b/ Z
describe three patients with stable complete molecular response on dasatinib
& s! N7 ^8 y0 t6 D, Ktreatment following imatinib failure. Two of the three patients remain in6 M0 t$ ?: [9 f; H& r
complete molecular response more than 12 months after stopping dasatinib. In
) r+ o/ I1 |: F2 o7 qthese two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
' r+ S* z* }# Lshow that the leukemic clone remains detectable, as we have previously shown in0 Z" p3 { e9 A, J
imatinib-treated patients. Dasatinib-associated immunological phenomena, such as
1 d. f0 { G, Athe emergence of clonal T cell populations, were observed both in one patient4 Q' H/ N: B4 c) U0 ?2 g6 ?' Y
who relapsed and in one patient in remission. Our results suggest that the8 p( c& q! [( R5 X0 N$ V$ J7 {
characteristics of complete molecular response on dasatinib treatment may be
0 q8 \; |3 E5 O& E) d. G+ }* osimilar to that achieved with imatinib, at least in patients with adverse
+ r' e) a+ M" y/ p/ Z4 Adisease features.0 `3 Y" t" y8 d9 e# W
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