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。
6 L4 K/ L* k3 X: O6 B$ l 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。: g1 g B' e' V: s* X! {( {! U
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作者:来自澳大利亚8 O/ ]) t2 J4 L6 ^, g/ T! {. Z. @
来源:Haematologica. 2011.8.9.
/ }3 d1 d& c& Z2 e) ]# sDear Group,+ F4 T# d0 A8 Q, ~% C( F
x) e+ W7 r( ^( l( X+ ZSome of you are on Dasatinib (Sprycel) and we wish to give news on all CML3 p. u1 m: y8 Q; V( ~
therapies. Here is a report from Australia on 3 patients who went off Sprycel
$ k- F' I1 j1 }$ f4 [after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients
- z; O& l, C& J) i+ @! f: \$ Kremain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel
9 n* T4 k3 P, R B* r9 Udoes spike up the immune system so I hope more reports come out on this issue.
5 Q. U: [$ ?% T0 K6 A
% ~2 K8 m6 [8 dThe remarkable news about Sprycel cessation is that all 3 patients had failed! p I; x( U' [
Gleevec and Sprycel was their second TKI so they had resistant disease. This is+ o; X0 i) s% T( |
different from the stopping Gleevec trial in France which only targets patients
1 i' `5 b# G) |/ ^1 O; O: k* ]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
@7 P- X( H/ V7 o5 G: I( jresponse off Sprycel is sustained.
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Best Wishes,3 f/ j+ u. h( E5 m7 O2 a7 V
Anjana+ d" g$ f. A8 [# Z: g1 R( T
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0 p! {" n# j- Q' G8 W* s
Haematologica. 2011 Aug 9. [Epub ahead of print]8 U5 S, | A2 A3 [! ]5 d
Durable complete molecular remission of chronic myeloid leukemia following
" _ v. }) r* B( a. n5 o9 zdasatinib cessation, despite adverse disease features.. g% J" Z+ e) X' F) u* O( @
Ross DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.
, M$ ?' }; B6 |# g" g; `Source
9 t8 I+ q( ?/ K4 e. O: O; K; w$ dAdelaide, Australia;
/ e% G5 G2 f: C3 [3 c) }8 n) Y2 X# b" @/ d7 x
Abstract( {9 `. }3 _+ z# ~
Patients with chronic myeloid leukemia, treated with imatinib, who have a' Q6 b) s- k" F8 D, T' V; f" _
durable complete molecular response might remain in CMR after stopping
- g0 y) ^+ X$ [* d; t, Jtreatment. Previous reports of patients stopping treatment in complete molecular
% `2 ?; H, v. p% h0 Bresponse have included only patients with a good response to imatinib. We1 N& G6 U% J( z) v2 z
describe three patients with stable complete molecular response on dasatinib
: h u" c3 A4 G7 J3 K5 `/ ntreatment following imatinib failure. Two of the three patients remain in3 ~6 k0 J; [1 f+ C) k( Z$ W
complete molecular response more than 12 months after stopping dasatinib. In
- _ S, V0 x( B2 K# Mthese two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
( R# ?0 ^5 a$ f+ c6 E/ vshow that the leukemic clone remains detectable, as we have previously shown in6 k R, @: z6 C
imatinib-treated patients. Dasatinib-associated immunological phenomena, such as
3 k' ?* Y2 I5 v/ |the emergence of clonal T cell populations, were observed both in one patient" o$ K, C2 W" G* G+ Y
who relapsed and in one patient in remission. Our results suggest that the9 c2 j& x( o7 w8 ?, [; Y6 E) [
characteristics of complete molecular response on dasatinib treatment may be x" }' Y! m* A
similar to that achieved with imatinib, at least in patients with adverse1 } B. Y. g: ~" \
disease features.4 t* E, Z$ `6 R* A
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