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。
( w& K3 l, g6 j$ N$ L% 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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作者:来自澳大利亚1 q" w( h/ q8 T: I H
来源:Haematologica. 2011.8.9.
+ \& m3 ~/ D6 N0 N0 sDear Group,1 t1 n4 ~* v, V
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Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML9 K$ P, ]( M, \
therapies. Here is a report from Australia on 3 patients who went off Sprycel! o3 l: c% X* X' R5 p/ J3 R. j
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients" I6 T3 U6 b5 F& t. W% J" ?" G5 Q
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel( Y6 h' Z' ~5 o: S' [. D, _9 y
does spike up the immune system so I hope more reports come out on this issue.% u3 i0 a: J. E" H- U
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The remarkable news about Sprycel cessation is that all 3 patients had failed
0 A) J. o7 N4 b! r S1 kGleevec and Sprycel was their second TKI so they had resistant disease. This is
: o! R9 i# Y( Q5 F3 Ydifferent from the stopping Gleevec trial in France which only targets patients2 q. x6 F6 I# u/ O' ~! o
who have done well on Gleevec.
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$ l s( j, v1 ?Hopefully, the doctors will report on a larger study and long-term to see if the0 j x1 Y9 K+ N2 T" ]6 s: |
response off Sprycel is sustained.6 W/ W* @$ q* ]5 k/ w" v) R
9 }3 @3 u' ^9 ?6 z9 ZBest Wishes,
2 v: l+ D( g+ h3 B7 ^- T: k. |( HAnjana; ?' Q7 \# J7 L$ I8 W# a
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2 i7 M9 v7 W2 M1 |* f5 ~ gHaematologica. 2011 Aug 9. [Epub ahead of print]% r. K3 c) F j7 M' ^+ j; U$ ]. N
Durable complete molecular remission of chronic myeloid leukemia following
7 \8 i2 [. l6 ]* u9 [dasatinib cessation, despite adverse disease features.
+ f Z' _( a5 FRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.
. k5 ~, j) f& [% sSource
& l% O3 a( b* w9 {$ xAdelaide, Australia;
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Abstract
# _) U- O( b- T1 y8 L4 J5 iPatients with chronic myeloid leukemia, treated with imatinib, who have a
$ e/ d [7 ?% Ndurable complete molecular response might remain in CMR after stopping
$ S" S; G. D- ?) qtreatment. Previous reports of patients stopping treatment in complete molecular$ P& B/ w2 ~+ \& t( e3 x
response have included only patients with a good response to imatinib. We1 t; u) C0 h; ? t$ N) H' D
describe three patients with stable complete molecular response on dasatinib H, t. R4 a. |5 l! \7 S
treatment following imatinib failure. Two of the three patients remain in6 x- Z/ B7 b: A( T7 R
complete molecular response more than 12 months after stopping dasatinib. In3 u6 y: f0 S( X) ]) o
these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to; {! H+ \$ @! m! s7 q
show that the leukemic clone remains detectable, as we have previously shown in
$ R# X* e/ [# n2 ]" E( U u; W1 ]imatinib-treated patients. Dasatinib-associated immunological phenomena, such as
4 H& X1 s5 ]7 C0 s9 \7 vthe emergence of clonal T cell populations, were observed both in one patient& v( _7 _$ l. f" N
who relapsed and in one patient in remission. Our results suggest that the
& ^2 c4 K3 R% z1 x% g2 Q* v$ fcharacteristics of complete molecular response on dasatinib treatment may be2 R- Q8 U3 X4 J2 V! M
similar to that achieved with imatinib, at least in patients with adverse
/ F0 {5 F; K# l" ^) j" F; Qdisease features.$ F D0 H" n/ x: P: N
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