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 A- q- x9 v) q
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。0 o) f# U& k5 O0 b: Q
8 g0 y) u4 w* J1 h: Q作者:来自澳大利亚6 p4 ?* K4 G5 \8 m% B
来源:Haematologica. 2011.8.9.
R8 |+ w8 o6 A% a, ]Dear Group,, ?, X( n1 n. s
, P0 ]5 D* D0 W/ T9 ?) ASome of you are on Dasatinib (Sprycel) and we wish to give news on all CML
' b0 m. V+ L8 u; S5 ytherapies. Here is a report from Australia on 3 patients who went off Sprycel4 N7 _0 j* c$ Q: q
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients
# @8 o. V" c+ o) W+ R! C+ r1 Z) Premain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel
! t/ A: g* R S$ Pdoes 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% R2 o3 B& k" q) z' s8 Z% r
Gleevec and Sprycel was their second TKI so they had resistant disease. This is
) S( k- B9 ~+ Ldifferent from the stopping Gleevec trial in France which only targets patients- Z8 \. M8 S( }- ?3 B( n
who have done well on Gleevec.; a& v. R$ r6 a" I" W
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Hopefully, the doctors will report on a larger study and long-term to see if the! j7 w( l" P+ p2 X( X- @- Y
response off Sprycel is sustained., |- o- O: C1 X1 ^$ l3 |
$ b1 X9 E: I* ^4 `Best Wishes,
' x0 S& W- b& r; I8 KAnjana
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/ t+ Z* f6 r" a' xHaematologica. 2011 Aug 9. [Epub ahead of print]
4 K( ]* j$ M9 PDurable complete molecular remission of chronic myeloid leukemia following7 a) v2 U( m" ?; J( f; D4 k
dasatinib cessation, despite adverse disease features.
; K; k! f/ Z$ }. W. ~7 a# u MRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.$ ~/ ?! N" o/ S7 q1 ]" h) Z& n
Source
4 M& E9 o$ n0 m6 y& A2 oAdelaide, Australia;8 j! |% q" r$ @) }8 _: s& ?
& Z- R. t& T1 H0 b/ zAbstract& |8 `9 v5 k$ T6 M
Patients with chronic myeloid leukemia, treated with imatinib, who have a( M, j6 {4 b& l# k0 j6 s% q
durable complete molecular response might remain in CMR after stopping
) {! t6 O) M- htreatment. Previous reports of patients stopping treatment in complete molecular8 d3 H' T# Y8 m$ H7 K8 D
response have included only patients with a good response to imatinib. We+ V6 s- y Q! T) a
describe three patients with stable complete molecular response on dasatinib
% z" E5 r+ o& ?5 _) `3 gtreatment following imatinib failure. Two of the three patients remain in) v* x7 i9 j+ Q( U6 L0 X6 b) [( _
complete molecular response more than 12 months after stopping dasatinib. In4 G. J0 R1 ~% f- j
these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to9 M2 {, b4 ]2 v+ ?) o
show that the leukemic clone remains detectable, as we have previously shown in
9 }. b; b6 q7 o( eimatinib-treated patients. Dasatinib-associated immunological phenomena, such as
, {$ Y" U+ F2 F8 @ A" B: u2 Pthe emergence of clonal T cell populations, were observed both in one patient
" t* }9 U% W" m2 l; }. Dwho relapsed and in one patient in remission. Our results suggest that the
d* G) `; a0 ~characteristics of complete molecular response on dasatinib treatment may be% C( ], C: S# e
similar to that achieved with imatinib, at least in patients with adverse2 o3 F0 d8 R; S# t" a, @" J
disease features.
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