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。% i; ]9 f, ^ 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。
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作者:来自澳大利亚
+ W, ]1 O$ I, ?2 e* y" g& c来源:Haematologica. 2011.8.9., H4 f+ X* O' r
Dear Group,
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Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML
6 l4 @% l! w! y9 wtherapies. Here is a report from Australia on 3 patients who went off Sprycel# d/ i, u5 j, o* e" K& ] Q- s
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients( O$ \) m9 ^2 s: p2 s6 I& w6 M! j; M
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel. T6 r0 [( L- Z; @5 _
does spike up the immune system so I hope more reports come out on this issue.
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The remarkable news about Sprycel cessation is that all 3 patients had failed
U: Q4 x5 D7 t3 z# IGleevec and Sprycel was their second TKI so they had resistant disease. This is
4 f( b0 p; V* S8 x: A% \. ]different from the stopping Gleevec trial in France which only targets patients: P4 O) ` U5 j
who have done well on Gleevec.
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' y1 e8 c3 t1 \Hopefully, the doctors will report on a larger study and long-term to see if the
- g& U8 Q2 ?, B% rresponse off Sprycel is sustained.
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Best Wishes,. j, N, _" u. D( r+ t4 m
Anjana0 S2 j# m1 B$ k3 f
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9 d$ K5 B: s2 w: F9 @8 P3 UHaematologica. 2011 Aug 9. [Epub ahead of print]
) V* x2 M4 w( g$ s$ Y+ D4 BDurable complete molecular remission of chronic myeloid leukemia following. U6 Q9 H/ L/ U$ v* b
dasatinib cessation, despite adverse disease features.$ N2 a2 E- a* F, }
Ross DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.) L( ~5 b( L% S. Z r( g5 M4 @9 J
Source
4 c$ S2 I: W2 R& dAdelaide, Australia;
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! J- ]* ~1 i3 s/ k6 v5 XAbstract Q4 i% T( `& ?* N% \9 E# P; J
Patients with chronic myeloid leukemia, treated with imatinib, who have a
; H" Q b3 M8 X$ H Odurable complete molecular response might remain in CMR after stopping
% y: `$ n4 Z/ J, d2 V8 @" V1 J1 ytreatment. Previous reports of patients stopping treatment in complete molecular2 D. p, f6 i) F9 s4 U( u4 b
response have included only patients with a good response to imatinib. We6 ^+ t: o P/ z# t
describe three patients with stable complete molecular response on dasatinib1 c# G8 P" d, p+ g8 I+ v& n
treatment following imatinib failure. Two of the three patients remain in
" V% l8 f' x' b2 x% Lcomplete molecular response more than 12 months after stopping dasatinib. In
) H: v" A: b) t# A% D1 c8 f$ tthese two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to1 h ]" r" K# ?% w+ j
show that the leukemic clone remains detectable, as we have previously shown in
! h; j( Z0 r1 e6 jimatinib-treated patients. Dasatinib-associated immunological phenomena, such as
3 ^8 }2 O+ F5 |4 `5 Zthe emergence of clonal T cell populations, were observed both in one patient
% U2 e; i: O2 m+ b6 e& R& ~* qwho relapsed and in one patient in remission. Our results suggest that the
& I8 t2 c* o1 Q" _% scharacteristics of complete molecular response on dasatinib treatment may be
* K; z/ S8 b, M2 `similar to that achieved with imatinib, at least in patients with adverse
$ `4 ]: E( h8 }9 V; w Bdisease features.; W8 J8 Y7 {* m
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