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。2 |! M; O4 A% b, 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。- r- g9 G/ k. _/ f; c+ W
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作者:来自澳大利亚' I2 e. U' y% H4 u
来源:Haematologica. 2011.8.9.# e$ h& A7 j. O/ J( W
Dear Group,
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Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML
I* k8 C. d& Y. Etherapies. Here is a report from Australia on 3 patients who went off Sprycel- z/ t' g" ? e. u* ]
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients' K) |% e$ M7 c' V$ z8 `* ]# Z) w, t
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel" f, u' J5 i7 K. k
does spike up the immune system so I hope more reports come out on this issue.5 W( r4 V) k; F" p. |: d
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The remarkable news about Sprycel cessation is that all 3 patients had failed% P7 F$ M a; Z2 B; b
Gleevec and Sprycel was their second TKI so they had resistant disease. This is; x0 d0 \. X6 D
different from the stopping Gleevec trial in France which only targets patients
3 K: A; S/ M9 owho have done well on Gleevec.
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: _! R, `* w& E% N3 c6 eHopefully, the doctors will report on a larger study and long-term to see if the) b9 T. C. U( T0 P
response off Sprycel is sustained.# t, y) L& n S% v; {6 m( ^
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Best Wishes,9 _2 l6 j% T* A( k" Y
Anjana& F8 Z7 Q7 v* _6 K
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7 m- u, V& H( I0 i: zHaematologica. 2011 Aug 9. [Epub ahead of print]
Y' i& s) v r2 ~# T5 X' @Durable complete molecular remission of chronic myeloid leukemia following2 R$ n" t% h" l% X `$ `. C& m
dasatinib cessation, despite adverse disease features.: L3 U8 V+ g8 }* H; C& W
Ross DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.
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& I* m4 W; N0 w9 Y! |+ o" ?Adelaide, Australia;
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4 h6 N( ?3 o( q! X# NAbstract. ~5 U' w( f; R% @* G
Patients with chronic myeloid leukemia, treated with imatinib, who have a
) C9 G9 B1 b) P J Z! ?durable complete molecular response might remain in CMR after stopping' N ^+ @* c6 ~' s8 h( Y
treatment. Previous reports of patients stopping treatment in complete molecular% J+ K# {/ G. D1 a7 M
response have included only patients with a good response to imatinib. We
+ k9 w7 K/ J7 @4 X. h* G) u. Hdescribe three patients with stable complete molecular response on dasatinib1 e ]& u# [+ X5 A+ q8 ^ E3 _
treatment following imatinib failure. Two of the three patients remain in
- e Y- s' o: G$ Xcomplete molecular response more than 12 months after stopping dasatinib. In
1 b' Y5 R& S5 P& X$ [& ethese two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
) n! F' Q+ C6 ^+ z, Sshow that the leukemic clone remains detectable, as we have previously shown in
5 I2 r- R8 r V# ^# j& Wimatinib-treated patients. Dasatinib-associated immunological phenomena, such as
/ e3 Q# r* o# Jthe emergence of clonal T cell populations, were observed both in one patient
( @! m) S' A5 ~* [. ~, _3 _/ iwho relapsed and in one patient in remission. Our results suggest that the
& N1 L/ u6 m6 q+ Ycharacteristics of complete molecular response on dasatinib treatment may be6 O- A/ o- X, D( t7 s) n* s0 K0 A
similar to that achieved with imatinib, at least in patients with adverse" @3 _& Y4 ]! a: {9 g: s
disease features.
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