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。
% Q: m% y; |$ a7 j 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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3 `( l$ e1 W$ J作者:来自澳大利亚/ w% w7 d P/ b/ Y& e ^
来源:Haematologica. 2011.8.9.
0 D: P9 b' D# IDear Group,7 D* a8 U, l$ O. I. M; i1 l- u
; ^+ x1 I n0 l: _, qSome of you are on Dasatinib (Sprycel) and we wish to give news on all CML: f3 F8 h5 G% P4 F* F5 J6 l; {! B
therapies. Here is a report from Australia on 3 patients who went off Sprycel/ g" y. X1 h: _; z
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients
7 t2 g+ p W$ l# Nremain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel. B. O; S4 r5 q
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
) A: ?1 G* Z$ V8 U i. q7 fGleevec and Sprycel was their second TKI so they had resistant disease. This is9 K& V! R' ~: W) t- C& e
different from the stopping Gleevec trial in France which only targets patients6 r) \, h' O' q" K. t5 f6 A
who have done well on Gleevec.: F/ h. u) P' p$ r: R# S8 W. W
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Hopefully, the doctors will report on a larger study and long-term to see if the
# h, c, L8 W1 i: |% Fresponse off Sprycel is sustained." }' q+ |; L! y8 ~+ G! J$ ]; ^
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Best Wishes,
e# l) B! A8 wAnjana
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. g8 ]; b( k$ _7 [/ c2 mHaematologica. 2011 Aug 9. [Epub ahead of print]0 }% n" F- {- G1 a4 B
Durable complete molecular remission of chronic myeloid leukemia following
! A- j/ [$ I% u6 {3 f0 ?+ cdasatinib cessation, despite adverse disease features.
$ y c: r) ?0 d* ?6 zRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.: e6 u$ k1 s% \" q$ G" v3 k3 W# E3 P
Source
- S9 K' N6 E; p" SAdelaide, Australia;
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Abstract
/ @4 z" i$ W& A& C; L" LPatients with chronic myeloid leukemia, treated with imatinib, who have a
) O0 |3 N- N+ j9 H% ]! Q5 x# _durable complete molecular response might remain in CMR after stopping& I8 L* \/ e2 z+ \) e
treatment. Previous reports of patients stopping treatment in complete molecular8 ~$ e$ u! }5 ^
response have included only patients with a good response to imatinib. We
) g' X* ~7 j y* j& [describe three patients with stable complete molecular response on dasatinib" D" u/ r/ w5 X% O
treatment following imatinib failure. Two of the three patients remain in
& c; Z1 g& O: d( E; D9 Tcomplete molecular response more than 12 months after stopping dasatinib. In1 q i& x, e# r( V1 U$ W1 i7 t* a
these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to% j5 l0 _5 q7 }+ C+ ~4 s
show that the leukemic clone remains detectable, as we have previously shown in
- o# f7 N6 i' f, N) H. ~5 Kimatinib-treated patients. Dasatinib-associated immunological phenomena, such as
- R. ^) H2 V: p3 zthe emergence of clonal T cell populations, were observed both in one patient5 o0 t, m, k% H L/ ?0 C$ J
who relapsed and in one patient in remission. Our results suggest that the
I( | J6 ? H% J# M/ C" r5 Gcharacteristics of complete molecular response on dasatinib treatment may be
& l! ~! y7 B0 x8 `* H, b* Ksimilar to that achieved with imatinib, at least in patients with adverse
# d3 g( r: O+ Z- Y1 p! I: ~; \disease features.( ?# B# G! K# k
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