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。
- X8 m+ B2 A$ W& x 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9 P# p+ S( p& j: D* u" ~' o B3 ~- n" |
来源:Haematologica. 2011.8.9.
$ D6 P3 W# d" q" A/ {+ m: [Dear Group,1 z7 W8 T) G5 M1 F# Y
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Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML
# f, H$ I3 L. b) X& S# R4 xtherapies. Here is a report from Australia on 3 patients who went off Sprycel g) V+ r4 d0 j# d6 O |
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients( w( }9 o* _- a
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel- g# {" @7 ?4 K8 D# {
does spike up the immune system so I hope more reports come out on this issue.' I A' Z }$ @/ N l
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The remarkable news about Sprycel cessation is that all 3 patients had failed7 B% x- F' o, k2 ^
Gleevec and Sprycel was their second TKI so they had resistant disease. This is, R3 S, p/ P+ t6 C% e ~( Y
different from the stopping Gleevec trial in France which only targets patients
: k; F6 S# }* d" Q6 A5 \+ t) ?who have done well on Gleevec. ~. D0 P0 L( f
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Hopefully, the doctors will report on a larger study and long-term to see if the
9 p9 t0 Y) q- Z' E" X# D, g6 Sresponse off Sprycel is sustained.& I r/ K* X: q: k7 |% H
' @2 R. k6 E& MBest Wishes,! o; S6 P3 k) K6 O" d T
Anjana
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Haematologica. 2011 Aug 9. [Epub ahead of print]
0 v) V4 O4 t/ Z/ _( L$ e& ]Durable complete molecular remission of chronic myeloid leukemia following
) f/ @. r; }8 a" P ydasatinib cessation, despite adverse disease features.
: {5 s* w" P1 C+ bRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.' S9 A# R2 l) v1 P% w9 s9 T
Source
! [) x$ ~% f* X9 Y+ x* X: [Adelaide, Australia;6 [4 P% H0 R6 N7 ]" |* ?0 U
. o) a% g* U2 N( ^8 B' b/ QAbstract- T( ]2 U% I6 d* y/ U3 g9 {: F7 Z4 [
Patients with chronic myeloid leukemia, treated with imatinib, who have a* H% c N/ \4 c' t
durable complete molecular response might remain in CMR after stopping
; S$ F9 x! ` C9 o( Q& Mtreatment. Previous reports of patients stopping treatment in complete molecular% _- f2 j' i m6 E- J; A
response have included only patients with a good response to imatinib. We! }0 h0 G) l2 X, e
describe three patients with stable complete molecular response on dasatinib, X7 ^* l9 y% ^' J0 k* {
treatment following imatinib failure. Two of the three patients remain in
5 v8 K# F8 D K) y# {, C kcomplete molecular response more than 12 months after stopping dasatinib. In0 B* r4 I: r& V
these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to/ H# Y, s6 ?) @1 f* i" v6 V
show that the leukemic clone remains detectable, as we have previously shown in
; r P+ W: ^. F9 l# N$ Cimatinib-treated patients. Dasatinib-associated immunological phenomena, such as
. b) Z! e$ h6 h M9 p! X% b1 Bthe emergence of clonal T cell populations, were observed both in one patient
# e( O# D% b; R/ r# Y. e) ewho relapsed and in one patient in remission. Our results suggest that the w N! w4 W, n' E2 p
characteristics of complete molecular response on dasatinib treatment may be8 s( {1 S& C3 ]- F+ x% q
similar to that achieved with imatinib, at least in patients with adverse" M- n$ C7 g3 Z5 O0 j- B
disease features.) n$ M6 v j; X6 e6 g0 t' K
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