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。
1 t" Q2 e T) ~) a9 B. W8 ^% ` 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
8 A! I$ Y- \2 ]/ b8 c/ Q N来源:Haematologica. 2011.8.9.
8 y* q K% k; S: B9 ~Dear Group,( w; s: m! i* R8 d9 m
3 i( n3 b# y- Z7 K6 sSome of you are on Dasatinib (Sprycel) and we wish to give news on all CML' P; w: Y! |" T% T
therapies. Here is a report from Australia on 3 patients who went off Sprycel
. U% v v2 ]$ ]0 Z2 K! t; w. Jafter stable molecular response (PCRU). 1 patient relapsed but 2/3 patients
8 i& c- w1 B( ^% t" Qremain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel
5 Y, W& y, m" Q- e7 s4 u$ ]does spike up the immune system so I hope more reports come out on this issue.
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! y5 L, ~2 f( _& uThe remarkable news about Sprycel cessation is that all 3 patients had failed# t8 o* }& ~1 H5 V+ _( X
Gleevec and Sprycel was their second TKI so they had resistant disease. This is
: E; P# R* `. C' j. s" bdifferent from the stopping Gleevec trial in France which only targets patients
4 I6 U; X. u1 E2 [/ b& p$ P1 k. z+ }who have done well on Gleevec.
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/ Q; Q; t6 e X# t! K( uHopefully, the doctors will report on a larger study and long-term to see if the
" d2 X" V9 s% l! }! H) ~$ oresponse off Sprycel is sustained.
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! R, S+ ]$ \$ A" SBest Wishes,; h2 h) {) r6 D7 j! P& Q) a- Q6 N
Anjana
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Haematologica. 2011 Aug 9. [Epub ahead of print]
% D n- Z3 A8 ]7 SDurable complete molecular remission of chronic myeloid leukemia following
4 m( Y9 a' a( X; Q! ldasatinib cessation, despite adverse disease features.4 F& q3 |, V1 b# e+ u
Ross DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP./ r# m( R: G: s3 P- X6 x
Source0 @0 d& e9 B |; Y+ k
Adelaide, Australia;0 I( A6 z! @1 r" K
2 \5 M4 a: ~5 u! j7 `3 wAbstract
! m/ v2 s- v* ?Patients with chronic myeloid leukemia, treated with imatinib, who have a# W z, F! \" t+ Q2 X4 Z2 ] G% r
durable complete molecular response might remain in CMR after stopping
! @% [1 I. [4 ?5 ^treatment. Previous reports of patients stopping treatment in complete molecular
6 \% q" e- e! Nresponse have included only patients with a good response to imatinib. We, k! a9 z" {, p8 l
describe three patients with stable complete molecular response on dasatinib
/ I$ Y, i7 [- j* Z @0 X( wtreatment following imatinib failure. Two of the three patients remain in
* F4 `' a! n9 ocomplete molecular response more than 12 months after stopping dasatinib. In8 S. h3 I! K" A: D+ R, q, q
these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
1 i" Y4 M3 g0 x" x* k Qshow that the leukemic clone remains detectable, as we have previously shown in1 h8 |7 ?1 [; r8 m- M
imatinib-treated patients. Dasatinib-associated immunological phenomena, such as) _4 Q( ]8 |; h5 j
the emergence of clonal T cell populations, were observed both in one patient
5 V$ ~8 c& s; x9 p% u1 m+ I, ?5 Uwho relapsed and in one patient in remission. Our results suggest that the
. v g% \& V) n1 K8 m0 rcharacteristics of complete molecular response on dasatinib treatment may be
& T0 F& c7 V9 T- L3 E" Gsimilar to that achieved with imatinib, at least in patients with adverse
0 [/ K% k* J) L: X+ A6 |. T, Cdisease features.: ^$ M# u2 s7 c1 H* H* s7 ?
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