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$ O5 F2 w; U1 M! N
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( q" Z8 D5 H$ c; W( }. p
来源:Haematologica. 2011.8.9.5 N( Y% h% O. m, N6 I! E3 r: g
Dear Group,
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Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML; T5 l5 q5 } T' T$ _
therapies. Here is a report from Australia on 3 patients who went off Sprycel) }/ d6 }2 |5 J* o
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients
6 c9 r5 R7 v( ^& U1 X. } fremain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel# z7 t* C! `+ `
does spike up the immune system so I hope more reports come out on this issue.5 B; v! q$ r9 M
2 X4 i) m/ t" A" i4 o, T2 H7 nThe remarkable news about Sprycel cessation is that all 3 patients had failed" t! O; R$ `& L
Gleevec and Sprycel was their second TKI so they had resistant disease. This is
$ f+ o' e* K$ g# U; i5 A- G$ ldifferent from the stopping Gleevec trial in France which only targets patients) L3 u1 y9 F/ J2 U& g
who have done well on Gleevec.$ {2 V' R. [8 f; R8 |) D
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Hopefully, the doctors will report on a larger study and long-term to see if the
u) a5 A$ j! |" c; r4 Kresponse off Sprycel is sustained.; @! E2 p6 K. v% V- M
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Best Wishes,
: ^9 {/ _+ P9 | R' E) Y4 `$ {Anjana5 h5 j% m: _9 |* W, i
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/ N3 R& g- f$ }7 K6 xHaematologica. 2011 Aug 9. [Epub ahead of print]+ o0 v# J' r1 u3 K0 c
Durable complete molecular remission of chronic myeloid leukemia following* e; Z: y4 R9 Z+ u% `
dasatinib cessation, despite adverse disease features.5 {( K+ m6 @0 h! u# |5 q" H0 [: d
Ross DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.2 N: ^) _% {( f4 l' n$ m$ ]
Source
9 T* [2 k1 @1 K/ G, B9 j/ }Adelaide, Australia;
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Abstract( T' p; [& R* [. X* G( I( y3 g7 W
Patients with chronic myeloid leukemia, treated with imatinib, who have a _- q( S6 P' J f8 r
durable complete molecular response might remain in CMR after stopping
' W' T( x l9 T6 T5 ~3 Q4 ztreatment. Previous reports of patients stopping treatment in complete molecular
7 ^) L8 k* m( w& Cresponse have included only patients with a good response to imatinib. We
# R" l# p( W8 B/ M: ~describe three patients with stable complete molecular response on dasatinib9 u( v5 d3 z; J! n
treatment following imatinib failure. Two of the three patients remain in
" j+ w) A* F0 j& M' xcomplete molecular response more than 12 months after stopping dasatinib. In
" d/ X$ J9 I- u7 ?/ v$ e! g. b. |these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
' L' {$ b5 \7 xshow that the leukemic clone remains detectable, as we have previously shown in
6 @/ w) ~( }6 e* W7 x! m, R# ximatinib-treated patients. Dasatinib-associated immunological phenomena, such as/ i1 \! r. x* v6 [3 f
the emergence of clonal T cell populations, were observed both in one patient0 y2 S# \; e9 y# ] i$ ?
who relapsed and in one patient in remission. Our results suggest that the g7 E1 a/ L7 e/ u5 k$ z
characteristics of complete molecular response on dasatinib treatment may be
% Z" p- L. r- j. \similar to that achieved with imatinib, at least in patients with adverse
7 A# s/ Q( F+ I# K& n5 Q- h0 I edisease features.
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