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。
$ ?5 r3 `2 ?' L7 M, B$ h, h* c8 ], _ 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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2 T& J: M6 Z4 _作者:来自澳大利亚
. @" m' D" p; K9 p7 C! b. ?来源:Haematologica. 2011.8.9.
* E$ Y+ @$ H* p/ L4 d1 gDear Group,9 r0 _/ e- L& [: a( @+ H
, g: p2 C& S- O( I- h+ qSome of you are on Dasatinib (Sprycel) and we wish to give news on all CML A* F8 N$ G" P) L
therapies. Here is a report from Australia on 3 patients who went off Sprycel! z2 r( w5 U- `4 K! X
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients+ I( o/ @ E! v4 ]- n7 s$ y% W, \
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel
# a. O/ N: G( x [3 Z. _does spike up the immune system so I hope more reports come out on this issue.4 G6 J( o) L7 a- x
: K! e! W" f6 \7 n4 _; D; G: cThe remarkable news about Sprycel cessation is that all 3 patients had failed
) X T6 G7 [7 }% bGleevec and Sprycel was their second TKI so they had resistant disease. This is
5 V* p+ M( B# r2 Ydifferent from the stopping Gleevec trial in France which only targets patients+ k8 J4 @8 w" M* p4 H2 v* P8 L8 s
who have done well on Gleevec. z1 s3 z$ q5 m2 p u+ x
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Hopefully, the doctors will report on a larger study and long-term to see if the/ p7 S+ N; ^! L8 T! t# ^
response off Sprycel is sustained.
1 |( I- R; D9 X0 T) z' K! Q$ H2 J8 c: p2 h/ _
Best Wishes,
& ~5 r6 N ~0 Z, a9 ~5 ~$ ~* rAnjana, ?6 V, N7 {% x- U; L
# K* C* k3 K+ T6 y) \8 d% p0 y
5 @6 ?: |' g% Y$ b2 w/ O0 d8 SHaematologica. 2011 Aug 9. [Epub ahead of print]: R2 V4 n, \6 O% N; ` R
Durable complete molecular remission of chronic myeloid leukemia following+ j* P! s: {8 W# `8 `
dasatinib cessation, despite adverse disease features.
5 w% s4 |9 M* l4 G* b' ~, {7 ?Ross DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP., h ~' o8 S9 O5 ?/ z. n
Source
! |! B2 W$ V! }2 |Adelaide, Australia;, P( p3 ]$ e' C: R% ~* L
( g6 S$ n: q# d- x# [# Q4 {Abstract
4 O2 R8 _/ J( X4 ?: lPatients with chronic myeloid leukemia, treated with imatinib, who have a
/ @1 b5 Z' h& R3 e+ ldurable complete molecular response might remain in CMR after stopping( W8 e0 {+ `- l1 I# ]
treatment. Previous reports of patients stopping treatment in complete molecular
. s# f- v; a9 O j9 f1 {7 ]response have included only patients with a good response to imatinib. We
; J9 E% X% h. b( G7 N/ K: Wdescribe three patients with stable complete molecular response on dasatinib
8 s& N) J9 D9 i" L7 ?, ?treatment following imatinib failure. Two of the three patients remain in
" g/ b! E2 {0 ?% D/ Y! ]' \complete molecular response more than 12 months after stopping dasatinib. In
' c! p, |4 V6 ?6 _3 Dthese two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to4 x" v1 B g! S$ C% q/ U
show that the leukemic clone remains detectable, as we have previously shown in0 h7 k E, k) i' B* l
imatinib-treated patients. Dasatinib-associated immunological phenomena, such as
. U4 N5 H' F( Q0 W4 Q6 U* s3 C4 Q7 Jthe emergence of clonal T cell populations, were observed both in one patient/ e) S& W+ w9 y! }; N. U1 N4 r- [
who relapsed and in one patient in remission. Our results suggest that the
5 g8 v) j+ U, X5 c2 V, Bcharacteristics of complete molecular response on dasatinib treatment may be
$ a8 _1 h5 e O! dsimilar to that achieved with imatinib, at least in patients with adverse5 l! L; T; i3 u) c( g
disease features.7 [; M _) x, } u; I
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