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。) _, b- q6 \/ a
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。9 L) u3 i6 r+ L8 B; q
- Q, q' {1 g" g$ Q3 h作者:来自澳大利亚- I" ^$ ~; s& Z" ^
来源:Haematologica. 2011.8.9.
. ?/ R$ `# o+ sDear Group,
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: `" M* ?1 U+ oSome of you are on Dasatinib (Sprycel) and we wish to give news on all CML$ U6 `" N! J. _7 @
therapies. Here is a report from Australia on 3 patients who went off Sprycel
( [: k- v% X! uafter stable molecular response (PCRU). 1 patient relapsed but 2/3 patients
3 b: T# Q( w2 R/ c) d: T6 mremain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel
1 f- h2 c) ~& w( ddoes spike up the immune system so I hope more reports come out on this issue.$ K. B" u5 f: j8 Q
5 Y( o6 \$ ~ n* c) s4 o- x; E
The remarkable news about Sprycel cessation is that all 3 patients had failed' O5 w, p y: ]* |
Gleevec and Sprycel was their second TKI so they had resistant disease. This is
- C% i9 w- ?0 l3 s/ hdifferent from the stopping Gleevec trial in France which only targets patients- X! j' ~9 F% r! M/ o: E
who have done well on Gleevec.
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( N# y2 }8 s% o& K8 \: L5 pHopefully, the doctors will report on a larger study and long-term to see if the" \9 e4 e: k$ C1 q
response off Sprycel is sustained.
$ i+ Q8 k2 `6 a& Q
, J2 Z" x% ~ GBest Wishes,
( [) M' @' x# a* t& c' JAnjana
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Haematologica. 2011 Aug 9. [Epub ahead of print]
& `: ]( M* Y7 e+ O" z9 r9 xDurable complete molecular remission of chronic myeloid leukemia following
0 p+ L f: \% ]# x7 Bdasatinib cessation, despite adverse disease features.
/ k( p( B6 k$ m" q# t2 h9 |6 W+ K9 QRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP. w! ?, g0 t6 X. V/ b7 i7 Q$ z- C
Source+ Q! G3 e; j7 Q' @! N. k
Adelaide, Australia;
4 A" O' v# D- g5 R/ K. t
6 e& ^ E8 b0 Z V! WAbstract
- {* b) j& G$ l- yPatients with chronic myeloid leukemia, treated with imatinib, who have a6 e3 [, V- D1 o+ _
durable complete molecular response might remain in CMR after stopping
3 W: Q$ W' _" X3 R0 }treatment. Previous reports of patients stopping treatment in complete molecular
* [ e/ ^2 e7 W+ n- f) q# k, n* Uresponse have included only patients with a good response to imatinib. We
, X0 h- c4 [( }+ Pdescribe three patients with stable complete molecular response on dasatinib
% k( j l! c7 R* ftreatment following imatinib failure. Two of the three patients remain in
) H* m7 K0 W- H, Ucomplete molecular response more than 12 months after stopping dasatinib. In
8 ?/ Q- Q# Y1 cthese two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
; ~+ A& a0 N8 }, E7 e1 sshow that the leukemic clone remains detectable, as we have previously shown in4 \! B( N% O) I2 E/ H. @( C/ }. s
imatinib-treated patients. Dasatinib-associated immunological phenomena, such as. N% N# J; e$ V- \
the emergence of clonal T cell populations, were observed both in one patient
: o7 X, {1 O- D( O6 v0 [who relapsed and in one patient in remission. Our results suggest that the \5 w2 u4 `: k( T: l& e
characteristics of complete molecular response on dasatinib treatment may be9 c* P+ Z: e: z v9 n
similar to that achieved with imatinib, at least in patients with adverse/ ~4 N$ f: j$ I. k2 ~
disease features.
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