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。: o9 i4 a/ k; e0 H) l9 w: J$ `7 [
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。# p% k0 t5 V% `7 l; y. Z. ~
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作者:来自澳大利亚3 Y1 S* X# q' S9 r
来源:Haematologica. 2011.8.9.
: Q* X7 T* ^2 k2 N0 e0 U4 fDear Group,. ~3 w9 e* ?! s) y7 H% P
3 M( P! h4 C' | ?. J3 `$ Z: d) T' T6 fSome of you are on Dasatinib (Sprycel) and we wish to give news on all CML$ w% G: [" @( I
therapies. Here is a report from Australia on 3 patients who went off Sprycel
) ~; t* A7 y' b9 hafter stable molecular response (PCRU). 1 patient relapsed but 2/3 patients
/ _9 D* g3 @6 z+ L; I% u+ uremain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel
; k. ]% s- ~" x8 b9 k5 b: ?does spike up the immune system so I hope more reports come out on this issue.* f* j6 b8 O8 d" i- B0 O p3 M8 n
3 q F4 ?3 t+ BThe remarkable news about Sprycel cessation is that all 3 patients had failed
) R& |$ ~3 y) a' E6 B, l( qGleevec and Sprycel was their second TKI so they had resistant disease. This is% X9 f1 l. h0 h( I, y6 |: y# `
different from the stopping Gleevec trial in France which only targets patients
: t/ ]( X$ J3 S4 E) ewho have done well on Gleevec.
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Hopefully, the doctors will report on a larger study and long-term to see if the2 _+ l! F% S, |: S
response off Sprycel is sustained.% O& ]" t. R0 s, o( h+ o& h
5 X( C; ]. ^ g, HBest Wishes,8 E+ R: {& z! d1 g9 N: Z
Anjana
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! H! i/ V j* P# T9 u. l% L: `Haematologica. 2011 Aug 9. [Epub ahead of print]
* G; C5 P0 i% VDurable complete molecular remission of chronic myeloid leukemia following+ m: m& ~0 d! \$ A8 W
dasatinib cessation, despite adverse disease features.
. K( E1 y8 @+ C7 _ i5 hRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.
+ _; i3 m4 W* P4 e9 A1 gSource% a! a1 g) g: Z; }6 ?$ T3 F. K. u
Adelaide, Australia;! m# X. H( j1 D% n3 I5 |7 ?
/ U" n# @1 W' ]3 [5 tAbstract& p/ ~- K1 s/ \" ~3 u8 h
Patients with chronic myeloid leukemia, treated with imatinib, who have a
1 i% ?: ?# n9 i8 g( Y7 \durable complete molecular response might remain in CMR after stopping5 b D! a8 ~2 o! s
treatment. Previous reports of patients stopping treatment in complete molecular! ~0 p2 [ d" l# {+ p$ g$ ?
response have included only patients with a good response to imatinib. We
; R: R7 M9 p" E! @describe three patients with stable complete molecular response on dasatinib6 j/ Q/ N6 t h! o% ~6 {) R, ?
treatment following imatinib failure. Two of the three patients remain in# `6 }! t/ A; u9 o
complete molecular response more than 12 months after stopping dasatinib. In
7 B! X3 Q6 _7 g3 Uthese two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to8 Y8 \. m# I% @* v1 |/ ]5 h
show that the leukemic clone remains detectable, as we have previously shown in
; }5 f9 k- O" W! b4 ?. kimatinib-treated patients. Dasatinib-associated immunological phenomena, such as) N- z. {7 }5 ], U. M
the emergence of clonal T cell populations, were observed both in one patient2 p6 }" p7 k' c( O# V( ?
who relapsed and in one patient in remission. Our results suggest that the
3 R* d! G! K3 Scharacteristics of complete molecular response on dasatinib treatment may be
, z( n6 T- P( x- Asimilar to that achieved with imatinib, at least in patients with adverse$ h! m' ]8 Y" @
disease features.7 c# S; I- T; k; X* J3 q' m7 I
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