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。
+ P5 O8 ?0 t( q9 r 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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+ a% F3 ^! E; A5 F+ }' b/ X: ]' V作者:来自澳大利亚0 a. l! P: e. H& _8 R
来源:Haematologica. 2011.8.9.
) l, U* m+ a/ U3 tDear Group," C5 H$ I6 U) @ y8 m
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Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML
8 Q$ K* J( x/ ?therapies. Here is a report from Australia on 3 patients who went off Sprycel. J- d5 A) o) e0 l) ^
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients& m0 ~% X$ v1 x2 r) A; \+ R) b
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel% Z/ N# X/ a9 {$ L
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 failed9 `+ J$ f; U7 c# d3 c/ u; n8 w
Gleevec and Sprycel was their second TKI so they had resistant disease. This is
& c0 | X4 \* e0 n$ \different from the stopping Gleevec trial in France which only targets patients
+ a S8 w, }5 j: Y! m% hwho have done well on Gleevec.# C2 v6 Z& ~7 c, \" R
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Hopefully, the doctors will report on a larger study and long-term to see if the+ ^8 J! e& Z* B& S
response off Sprycel is sustained.$ f5 q+ l9 _* C% D! B
9 A( A/ j% @' U; P' F, F, HBest Wishes,2 ~/ A2 H) S! _
Anjana2 ^2 {' t$ @6 y" n
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3 R k% U1 Z# p; n {7 UHaematologica. 2011 Aug 9. [Epub ahead of print]
. l9 C9 ^$ @" Q( q O( h8 HDurable complete molecular remission of chronic myeloid leukemia following; w& ^' I j( [- m6 {8 `
dasatinib cessation, despite adverse disease features.
8 N- C9 Y; T0 eRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.
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Adelaide, Australia;
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Abstract7 @$ Z- Z: ]. H, K
Patients with chronic myeloid leukemia, treated with imatinib, who have a! E5 G, C1 J! r* s: u
durable complete molecular response might remain in CMR after stopping# e& Y8 n# f, C+ w' b
treatment. Previous reports of patients stopping treatment in complete molecular1 [1 `9 b$ z+ P# n/ ~4 O2 K
response have included only patients with a good response to imatinib. We
3 I, P' I* J$ [describe three patients with stable complete molecular response on dasatinib+ E3 A7 C7 ?9 F. N
treatment following imatinib failure. Two of the three patients remain in2 I( Z) l5 N% ?3 Z" o7 J
complete molecular response more than 12 months after stopping dasatinib. In& e/ r6 J8 U' w) ]
these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
: L0 U/ p1 P& |; l; G* pshow that the leukemic clone remains detectable, as we have previously shown in
3 Q% _( E, x5 R8 n' S' u* D% simatinib-treated patients. Dasatinib-associated immunological phenomena, such as
/ o6 ?2 W9 r% S" Ythe emergence of clonal T cell populations, were observed both in one patient
( M- R- W8 A; p H* Qwho relapsed and in one patient in remission. Our results suggest that the9 r( \+ Q5 @4 r' h' ^9 }+ d2 ~; O
characteristics of complete molecular response on dasatinib treatment may be
! b/ p) M5 M; I+ Z* Zsimilar to that achieved with imatinib, at least in patients with adverse
9 u z5 U) L5 S& ^2 f. Edisease features.
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