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。 Z7 m, l" `" `6 S
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4 }! R+ Y5 }9 B7 g+ S" [4 y, M
来源:Haematologica. 2011.8.9.6 X8 z" f/ S0 w- k
Dear Group,
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Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML
: h0 b# ]4 l, q! X- k4 |7 t9 Qtherapies. Here is a report from Australia on 3 patients who went off Sprycel
/ b0 ~% }2 c ^) h& Eafter stable molecular response (PCRU). 1 patient relapsed but 2/3 patients, s; i+ g) V$ ]4 }7 R
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel5 H d/ y( m" L
does spike up the immune system so I hope more reports come out on this issue.9 `* `2 J! e% q
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The remarkable news about Sprycel cessation is that all 3 patients had failed
0 v7 t4 N; |" k! q# J" B) SGleevec and Sprycel was their second TKI so they had resistant disease. This is
4 j: }& ]' g; b+ y2 idifferent from the stopping Gleevec trial in France which only targets patients& |8 T F k% Y
who have done well on Gleevec.
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) Y! J9 V2 W& a% `' P9 CHopefully, the doctors will report on a larger study and long-term to see if the
' R% v! A7 N N! e$ D9 T3 Uresponse off Sprycel is sustained.
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5 l& S" v" z% p1 Q: g# Q7 yBest Wishes,
9 Z2 j9 \, z8 e% ?3 Q- ~: AAnjana, z. L+ Y* f' |0 C5 Y
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. l1 @) t! E& k% M6 d, ` H- XHaematologica. 2011 Aug 9. [Epub ahead of print]
$ ?7 C$ J9 j! U% O* z7 |3 rDurable complete molecular remission of chronic myeloid leukemia following# _' ] B9 l6 O: w
dasatinib cessation, despite adverse disease features.
/ w, y) X, B: R+ w& QRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.
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Adelaide, Australia;
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Abstract
! l o& H! b/ hPatients with chronic myeloid leukemia, treated with imatinib, who have a
# X0 Z$ Z% j8 e8 }3 mdurable complete molecular response might remain in CMR after stopping+ f1 ^# g) \. `; ~" r5 s1 `
treatment. Previous reports of patients stopping treatment in complete molecular! Q1 B. v/ E0 R2 K
response have included only patients with a good response to imatinib. We
% R! H5 O4 i0 Jdescribe three patients with stable complete molecular response on dasatinib
8 F) t; Q: g- s) ^treatment following imatinib failure. Two of the three patients remain in
. o8 u0 m2 B( V0 J" @4 I. ^* hcomplete molecular response more than 12 months after stopping dasatinib. In
: \ P# {4 @! Z$ O3 Y( L& ethese two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
0 Z+ K% f$ d, b; Z4 Zshow that the leukemic clone remains detectable, as we have previously shown in% T4 y i8 e3 u+ A, I% }
imatinib-treated patients. Dasatinib-associated immunological phenomena, such as
: Q; z' |9 f2 j, Rthe emergence of clonal T cell populations, were observed both in one patient
3 B+ p# \ ^) c# `who relapsed and in one patient in remission. Our results suggest that the
3 q- ^. ]* Z3 @5 acharacteristics of complete molecular response on dasatinib treatment may be
3 K3 f6 `+ a% M, \! l) fsimilar to that achieved with imatinib, at least in patients with adverse7 I6 N9 |; Y+ F- t5 M7 f& ]
disease features.
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