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。
+ m. ?& A/ s( b. z& `- S 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。$ `# Y1 h J$ |3 m; {$ P( r9 Z2 @5 q
' @5 o% n2 o% [4 I h* {9 N3 N作者:来自澳大利亚
6 L/ l0 K, U @( c1 c* c% X来源:Haematologica. 2011.8.9.
& T6 I) a* R% S9 _. n ?Dear Group, P0 F- E% V8 C/ V& C! {
6 U3 Y" Q3 U* o/ ]" c9 Z* zSome of you are on Dasatinib (Sprycel) and we wish to give news on all CML
- f# h z& {& L/ e N+ @! c3 vtherapies. Here is a report from Australia on 3 patients who went off Sprycel7 h. G6 G! m" V+ d# z
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients
, Y, e( _. T8 g* O0 m; v8 `' f mremain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel6 q6 o3 X; g# R7 X& g
does spike up the immune system so I hope more reports come out on this issue.
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The remarkable news about Sprycel cessation is that all 3 patients had failed" J, k- h: m9 H1 c
Gleevec and Sprycel was their second TKI so they had resistant disease. This is0 T( f* W. u3 E0 O0 b, M3 U
different from the stopping Gleevec trial in France which only targets patients
9 p4 ? F$ L1 _4 S, twho have done well on Gleevec.
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; U: q4 u8 X/ n. r4 n9 WHopefully, the doctors will report on a larger study and long-term to see if the. k6 W2 a3 x4 c" `) X3 N
response off Sprycel is sustained.3 \+ C S; V' X, U: S, I; F
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Best Wishes,2 Z8 {0 p- B1 n" ?
Anjana
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Haematologica. 2011 Aug 9. [Epub ahead of print]3 X- H# P3 x# u# o
Durable complete molecular remission of chronic myeloid leukemia following/ l0 i$ Q$ p. {7 b4 h3 V
dasatinib cessation, despite adverse disease features.* q, b. ]+ Z9 W! r9 N
Ross DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.
& y& h. z( Y7 q+ M0 R. s4 I' ZSource
* }+ H A1 r) s# r9 GAdelaide, Australia;2 G4 ?4 D& C! K; P* v! U$ z5 c& g8 l
) n- |- f5 P4 ]& J2 _Abstract( R' d7 C! D `
Patients with chronic myeloid leukemia, treated with imatinib, who have a
+ O, `, X$ {6 O% ]: s2 {( p' Adurable complete molecular response might remain in CMR after stopping
* e. E1 E& r$ ~treatment. Previous reports of patients stopping treatment in complete molecular
0 U" N, s7 C2 ?1 Presponse have included only patients with a good response to imatinib. We
( R. K1 i0 z, [4 w$ i2 Y9 g Ydescribe three patients with stable complete molecular response on dasatinib
& {# l8 g7 i9 ctreatment following imatinib failure. Two of the three patients remain in8 ^* P1 \$ X. @: V; L, K, z1 G& ]
complete molecular response more than 12 months after stopping dasatinib. In2 p- r t1 a5 G6 \% V/ k
these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to, {2 m' D4 f. \1 o/ o
show that the leukemic clone remains detectable, as we have previously shown in
% j/ O/ R/ Y7 a- s6 D& Qimatinib-treated patients. Dasatinib-associated immunological phenomena, such as8 L0 S+ a3 Y/ P; c( M j; T
the emergence of clonal T cell populations, were observed both in one patient( ^! j# d& h$ h, g6 M r: w
who relapsed and in one patient in remission. Our results suggest that the+ \ e U, r6 x# }. n
characteristics of complete molecular response on dasatinib treatment may be
1 ] M0 L( |0 Z; A9 w: {: g; Zsimilar to that achieved with imatinib, at least in patients with adverse
) O3 X0 }5 a1 R! H# y; F4 Y. M7 k& kdisease features.
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