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; K6 y5 g+ q2 C! \ 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; R1 H) | c' a( ^: l; P
来源:Haematologica. 2011.8.9." S4 t( O1 g3 W# ?
Dear Group,! ]0 j/ W, E( m( A" X7 c r
( W7 ]4 f; i) N, u$ j
Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML
* X( E. m6 Z0 i# ^$ S1 `therapies. Here is a report from Australia on 3 patients who went off Sprycel/ g5 L0 U" T* ^" D
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients# Y8 Z2 A8 O, K$ _- b( \
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel) F9 i v2 \' Y/ ?( D3 l$ o0 I
does spike up the immune system so I hope more reports come out on this issue.
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% M! B& {9 A2 o0 L1 ]The remarkable news about Sprycel cessation is that all 3 patients had failed; G- x7 b+ P1 `0 l1 U! m( s
Gleevec and Sprycel was their second TKI so they had resistant disease. This is0 @1 G6 C, g, x
different from the stopping Gleevec trial in France which only targets patients/ @. H; ?. _7 j0 D. a# c8 d* [
who have done well on Gleevec.7 k! L1 P- e9 m V' j1 a
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Hopefully, the doctors will report on a larger study and long-term to see if the
; N* _1 Y! s1 j+ S4 X( o: W' eresponse off Sprycel is sustained.
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" Q8 Q E/ I' P1 U( cBest Wishes,
- q/ ~) O! o, R$ V2 GAnjana" X" M" \6 E, Q
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% S, ], Y3 B; w( S
: }. V2 p! y% d0 n) |1 kHaematologica. 2011 Aug 9. [Epub ahead of print]
6 p7 ]- s. \" Z# cDurable complete molecular remission of chronic myeloid leukemia following: x9 \1 g& |& T! g6 F. [8 a
dasatinib cessation, despite adverse disease features.5 S8 {$ B* Q1 p6 u, z3 z7 c
Ross DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.
8 l$ n+ C- X# a9 Z9 NSource
7 ^7 R' p' d+ Z7 DAdelaide, Australia;1 T0 `; @) b( @
% i$ C! U/ ~0 k( S2 LAbstract( p3 ]* W: {& U* Q/ E
Patients with chronic myeloid leukemia, treated with imatinib, who have a
* {+ |1 T6 D2 m8 E2 l' ddurable complete molecular response might remain in CMR after stopping% U/ Q. ?5 k5 x C; ]% @/ @! }- ]
treatment. Previous reports of patients stopping treatment in complete molecular9 W! n) |9 P) H" b
response have included only patients with a good response to imatinib. We
. `6 U2 J) U0 X5 ]& qdescribe three patients with stable complete molecular response on dasatinib
. K& K* v) }4 ftreatment following imatinib failure. Two of the three patients remain in
: o6 l; Z$ q9 W0 m" Rcomplete molecular response more than 12 months after stopping dasatinib. In8 h- D, a9 f- a, t; E
these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
" K: J, S# o& L! l# [show that the leukemic clone remains detectable, as we have previously shown in
; ^) h2 y* M0 kimatinib-treated patients. Dasatinib-associated immunological phenomena, such as
" ?& L, V/ w- e' U7 y% `5 ~% V% {the emergence of clonal T cell populations, were observed both in one patient j9 R6 V `4 n2 G! v
who relapsed and in one patient in remission. Our results suggest that the
# ] g5 b* i- ~0 e4 E ~5 Fcharacteristics of complete molecular response on dasatinib treatment may be _9 M4 F: g6 z5 t# T7 R t
similar to that achieved with imatinib, at least in patients with adverse ?$ V4 Z) t: \; H1 E! @
disease features.) z- ]+ w& ?, t2 G8 K$ r, O( t }% c
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