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。8 |7 @3 Z7 \+ i
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。9 K$ D" _6 c5 P' m
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作者:来自澳大利亚
7 G) ]. T, {! W; _来源:Haematologica. 2011.8.9." M- D0 }8 M5 b
Dear Group,
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8 X! l+ v0 ?+ e3 m+ ]3 uSome of you are on Dasatinib (Sprycel) and we wish to give news on all CML, q3 T8 @; O [
therapies. Here is a report from Australia on 3 patients who went off Sprycel7 Q8 Q) |* b- Z- l( f
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients; ]9 O- m* v/ n, i9 M; J
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel* t! A+ b j# P4 e
does spike up the immune system so I hope more reports come out on this issue.
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The remarkable news about Sprycel cessation is that all 3 patients had failed
' r$ H! f4 W( S& O5 eGleevec and Sprycel was their second TKI so they had resistant disease. This is. g" j6 ]' S1 {: N+ N
different from the stopping Gleevec trial in France which only targets patients
& X1 O$ P9 d: Y, ywho have done well on Gleevec.* A5 d( q; S- x9 u+ o8 X
: ~! ?0 v& @, c- l% C: k# v5 DHopefully, the doctors will report on a larger study and long-term to see if the
f" D9 R* Y7 Tresponse off Sprycel is sustained.
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Best Wishes,; [2 n0 z$ b& W, ?( ?) g. z
Anjana
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9 c2 W" j- B+ U+ @7 b6 ?1 BHaematologica. 2011 Aug 9. [Epub ahead of print]
0 |5 [9 y6 n7 u4 \7 ADurable complete molecular remission of chronic myeloid leukemia following; i" p4 M$ i/ H# B# T* x
dasatinib cessation, despite adverse disease features.- x( }1 d/ h# v( \, W, S5 E
Ross DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.
( c7 C3 k7 i9 e8 s; _Source
7 |% r# q$ u9 PAdelaide, Australia;2 i$ t n/ H! u' A2 w
7 G e; B" |- L. Z& C8 |' MAbstract* j5 ], ]% M7 A& d5 m
Patients with chronic myeloid leukemia, treated with imatinib, who have a, K5 G8 _( ~" I1 ^9 K* s
durable complete molecular response might remain in CMR after stopping) F7 X2 U! t' @$ n0 E8 E3 G3 V
treatment. Previous reports of patients stopping treatment in complete molecular
" | H8 }; t6 L% n+ J" |response have included only patients with a good response to imatinib. We
9 O8 b" @) c ydescribe three patients with stable complete molecular response on dasatinib
* X. b8 c p( P% Utreatment following imatinib failure. Two of the three patients remain in0 \ f; r4 l" T7 ?
complete molecular response more than 12 months after stopping dasatinib. In- ^7 k5 s5 b" v9 n" v, D
these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to. L/ H" C: e5 C( {- ~. ?
show that the leukemic clone remains detectable, as we have previously shown in' z- I0 ], A) a! ]. _4 b9 x5 U
imatinib-treated patients. Dasatinib-associated immunological phenomena, such as4 j" o9 C5 A" A w( R
the emergence of clonal T cell populations, were observed both in one patient
+ \2 M9 _( n! `$ S fwho relapsed and in one patient in remission. Our results suggest that the
+ j7 r4 e3 x# Z Hcharacteristics of complete molecular response on dasatinib treatment may be
; e9 ]3 a' Z) t) ]$ w' Z: dsimilar to that achieved with imatinib, at least in patients with adverse) H( R5 f9 O0 z b
disease features., O- r. e' x1 m& m! C
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