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。5 s- r. Q& y0 h2 }$ q( u X1 T* y
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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Z7 ?+ B' Z) A9 Q( ?* s9 i) K% H作者:来自澳大利亚
) i& ?: H9 m* I3 ]( K) E9 b来源:Haematologica. 2011.8.9.
6 f! F* j6 Y' r: k1 _9 \+ sDear Group,+ r, f" `( t1 K2 s0 B7 C
' L: n8 A+ j$ e) o" q; M9 xSome of you are on Dasatinib (Sprycel) and we wish to give news on all CML6 C1 B) Q J6 @( [3 B
therapies. Here is a report from Australia on 3 patients who went off Sprycel0 C# W( T* W3 D/ v
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients& O0 m9 [ ]! d3 O$ K: A
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel
/ Z+ D( L$ t' C( P4 Mdoes spike up the immune system so I hope more reports come out on this issue.
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. Z2 h& j+ U9 A% U1 u7 DThe remarkable news about Sprycel cessation is that all 3 patients had failed* `0 e9 O! Q) Z- R
Gleevec and Sprycel was their second TKI so they had resistant disease. This is# t0 k9 K. }0 @% O q( w8 _
different from the stopping Gleevec trial in France which only targets patients6 w) d: P2 f5 c
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 the1 k6 ?, b1 ~) C6 O
response off Sprycel is sustained.5 L) j, H; F& G, c0 j: l. ]. Z' @
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Best Wishes,
0 t7 A: H/ {' v+ t8 o! mAnjana o O: f2 I& P! e, f( _. `
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Haematologica. 2011 Aug 9. [Epub ahead of print]2 W. D9 J# y8 k" a6 ]5 h) \
Durable complete molecular remission of chronic myeloid leukemia following
; a8 t+ q" X X/ Odasatinib cessation, despite adverse disease features.
7 r9 L0 a& z6 n7 k3 rRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.
6 Z/ p$ o: _ ]7 Q: o. TSource
" T/ H) D. y5 I! u( lAdelaide, Australia;
0 d ^6 o1 U% r8 [. K/ s" G: b! m! U* l9 d: U g, |/ r
Abstract- S4 U% z C/ c4 o
Patients with chronic myeloid leukemia, treated with imatinib, who have a/ w; @/ T' c; ~5 X; q# I
durable complete molecular response might remain in CMR after stopping
. N6 C0 ~1 n- L5 ]3 G7 k) H. s7 ^treatment. Previous reports of patients stopping treatment in complete molecular% I t" c/ }# ?/ \5 k
response have included only patients with a good response to imatinib. We
, ?2 `; c4 F3 S7 E! t0 Gdescribe three patients with stable complete molecular response on dasatinib, g& I8 O, b$ M0 p
treatment following imatinib failure. Two of the three patients remain in9 C' S' z& e$ }4 Y
complete molecular response more than 12 months after stopping dasatinib. In
, V) u/ s7 }" Q0 ^* p: ^% ?) D) Wthese two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
M: A8 _2 M: r- Y1 {- j" \1 [3 M9 r, Kshow that the leukemic clone remains detectable, as we have previously shown in6 h6 K! _* _. N0 D
imatinib-treated patients. Dasatinib-associated immunological phenomena, such as9 Y# G( J, T& A* g
the emergence of clonal T cell populations, were observed both in one patient
' J6 u! B% H+ V5 E# K( \; D4 ?who relapsed and in one patient in remission. Our results suggest that the' W6 @2 L4 c2 w* `% X! L, I
characteristics of complete molecular response on dasatinib treatment may be" a% o; X5 J( b* p) @ a; s
similar to that achieved with imatinib, at least in patients with adverse
; O: r2 v8 L$ D% w @( z! ddisease features.# O: b3 ]$ f D
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