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- k5 ^0 v+ n% r 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。) O5 i& V2 o: i( s
7 c! u% t0 I# Q, j& n作者:来自澳大利亚, `( K" ~# `& `# }+ e, E
来源:Haematologica. 2011.8.9.+ U$ F" ^2 |; g# w
Dear Group,
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9 k6 b8 }9 n& q( Z. Q. mSome of you are on Dasatinib (Sprycel) and we wish to give news on all CML' @6 t; J& g9 C @; a7 o2 X
therapies. Here is a report from Australia on 3 patients who went off Sprycel" F9 g/ N. _! L. f! H# D% H' s
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients! h* j/ H. v# G4 q
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel
4 O, {' n$ V( P7 N# Vdoes spike up the immune system so I hope more reports come out on this issue.
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2 w# P3 o3 T' F+ K0 @5 ]0 s K IThe remarkable news about Sprycel cessation is that all 3 patients had failed
) E! y2 J% K" ]Gleevec and Sprycel was their second TKI so they had resistant disease. This is, h0 y8 F# _/ F6 u0 ^9 y: L
different from the stopping Gleevec trial in France which only targets patients/ C6 `2 m Q; @9 D7 t' B
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
5 n1 k2 v8 C2 I: r8 D3 iresponse off Sprycel is sustained.0 S' C. Q: ^; q/ ?& p) W& X
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Best Wishes,$ K& p( T; s8 V: N/ ^/ O4 k! ?
Anjana/ H* U2 _: t0 A
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* ]1 C% t7 c ` q4 P% S0 c
Haematologica. 2011 Aug 9. [Epub ahead of print]
3 G, l, p& V# jDurable complete molecular remission of chronic myeloid leukemia following
: b7 O! L4 ]& `/ Ldasatinib cessation, despite adverse disease features.
5 w r* W4 i) KRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.1 r. G4 t: p+ v+ t. Q- H/ G/ f. b3 ~- d
Source
1 D+ D+ x3 b- I9 p4 Q9 kAdelaide, Australia;8 z$ h+ L( D6 y( i+ _& d' g
! {' U( v* ^7 G6 u9 EAbstract! [( c+ \" }! r( n
Patients with chronic myeloid leukemia, treated with imatinib, who have a
) g5 B0 f( P F! D6 i$ ]( v# M+ ydurable complete molecular response might remain in CMR after stopping
, V( l2 t, h* a) Z3 G6 t% ntreatment. Previous reports of patients stopping treatment in complete molecular$ p6 T5 Y3 |. s/ ~$ c, s7 u
response have included only patients with a good response to imatinib. We1 ~# [! H$ }' c& k: B- {5 o
describe three patients with stable complete molecular response on dasatinib
1 X1 z# |, K- r6 Z( H$ ~+ j% btreatment following imatinib failure. Two of the three patients remain in4 g D1 t2 h9 y3 R( L, c1 z: L
complete molecular response more than 12 months after stopping dasatinib. In: ~( ~& g6 R0 G9 N$ N" i
these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to D/ D. A2 z+ b
show that the leukemic clone remains detectable, as we have previously shown in( J! D& o, h4 q
imatinib-treated patients. Dasatinib-associated immunological phenomena, such as
6 r* X- S4 m8 i1 l; Sthe emergence of clonal T cell populations, were observed both in one patient
# r' Z) v2 G; y9 G% ~+ ~who relapsed and in one patient in remission. Our results suggest that the
: L' S1 s3 Y q: Z \! r/ {* hcharacteristics of complete molecular response on dasatinib treatment may be
# T7 [9 O) c8 h2 n& u. ?; usimilar to that achieved with imatinib, at least in patients with adverse' t* g) O! o1 p( f
disease features.+ X& s$ z4 G% D& a
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