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。- F5 p9 x/ Q1 O4 o: r4 W
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。# J% c& v9 c2 \! |0 q, ~" K4 ?
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作者:来自澳大利亚
3 ]1 s* I" j4 i* M2 q7 G* o来源:Haematologica. 2011.8.9.9 P6 ?: k8 R6 |7 P# s! r
Dear Group,
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- R0 [3 y/ Q" [' X' p1 WSome of you are on Dasatinib (Sprycel) and we wish to give news on all CML; a) l6 L3 g9 @! V _8 P
therapies. Here is a report from Australia on 3 patients who went off Sprycel/ J5 E6 d/ |$ J s; D5 Q1 @8 S I* _
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients5 e! r4 w- X: G: j0 z0 K8 f
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel' @0 s; r @3 o
does spike up the immune system so I hope more reports come out on this issue.
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- z4 ~: V1 v# Y* \The remarkable news about Sprycel cessation is that all 3 patients had failed
& x" o" B4 P5 t/ `2 e8 ` ]Gleevec and Sprycel was their second TKI so they had resistant disease. This is
8 p3 m$ ^$ p6 Edifferent from the stopping Gleevec trial in France which only targets patients. D# Q( ^: t- @: A! y
who have done well on Gleevec.
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Hopefully, the doctors will report on a larger study and long-term to see if the# G* y& e$ E8 ~2 D
response off Sprycel is sustained.
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+ {( t2 q" {# c+ o' M" BBest Wishes,
( O* P$ a; @, l+ F/ ^0 uAnjana. @5 ~( P# ~6 |2 [3 c9 E- V
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6 }0 C* \. t/ U2 _9 R0 hHaematologica. 2011 Aug 9. [Epub ahead of print]1 O9 x2 r/ ^3 j7 q# {& |1 [
Durable complete molecular remission of chronic myeloid leukemia following$ J& @ E& c k
dasatinib cessation, despite adverse disease features.
* ^1 ~+ z& p: L& o' l- rRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.
( G& g- i( N$ e8 Q) I! `Source
4 ~' t- G" W" f$ J5 mAdelaide, Australia;" Q* t) X% Z6 f( Y3 ?
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Abstract
2 W& @9 e) l" F! N+ @Patients with chronic myeloid leukemia, treated with imatinib, who have a1 Y: d8 ^/ u0 X4 R" n. T$ g
durable complete molecular response might remain in CMR after stopping1 v/ H3 U% J+ D
treatment. Previous reports of patients stopping treatment in complete molecular; T' ?4 T8 _# z9 k) A, ^
response have included only patients with a good response to imatinib. We0 a9 i8 U) D/ M/ ~2 W
describe three patients with stable complete molecular response on dasatinib! P8 k/ n- M$ d
treatment following imatinib failure. Two of the three patients remain in5 w+ g* X. V2 T9 b
complete molecular response more than 12 months after stopping dasatinib. In
c3 q/ }' X( `; z' ethese two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
9 E; \8 z* ?/ u6 u; Y6 l2 _show that the leukemic clone remains detectable, as we have previously shown in6 W; W, W6 L# @& C9 W
imatinib-treated patients. Dasatinib-associated immunological phenomena, such as! A% C, l( |- I. G8 _, a- w
the emergence of clonal T cell populations, were observed both in one patient
/ b; [6 ~6 O6 G' ]7 K, A5 I' kwho relapsed and in one patient in remission. Our results suggest that the6 A0 G2 ]- P [+ q; z4 S
characteristics of complete molecular response on dasatinib treatment may be8 v. f9 F. J; B; O. A" w
similar to that achieved with imatinib, at least in patients with adverse
1 h& }$ _" x# B; h/ udisease features.8 K. H) h4 S; o! ~) f8 s; Y; K9 F
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