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。0 r! [1 S5 `9 _8 Q0 [: f
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。; x3 r$ r+ L, O8 N+ m8 ^
D, Y# u. u4 d) T4 X [作者:来自澳大利亚8 J- X% J5 E: F2 d* O9 Q+ }& Q
来源:Haematologica. 2011.8.9.! M$ ]& F- l0 h- f+ q
Dear Group,
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Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML) F& X- y6 o# y5 _; s) O
therapies. Here is a report from Australia on 3 patients who went off Sprycel
/ f. M) i9 m2 R% I$ h* F( [after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients
6 [0 {) _" M# p6 L4 m4 cremain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel+ N- x$ e7 @8 p
does spike up the immune system so I hope more reports come out on this issue.9 W- k; }; ?" z
2 n# k7 l0 G0 l6 f d; @& HThe remarkable news about Sprycel cessation is that all 3 patients had failed8 ~( ~5 X! I+ \9 e9 P8 ~5 k6 L
Gleevec and Sprycel was their second TKI so they had resistant disease. This is: K( A6 r/ V# Z- g1 r6 h1 P
different from the stopping Gleevec trial in France which only targets patients
! h9 ]! Z1 U, L- swho have done well on Gleevec.
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Hopefully, the doctors will report on a larger study and long-term to see if the
2 E( ?" B% \& H$ L+ Iresponse off Sprycel is sustained.
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Best Wishes, w0 B' U/ B4 x" p3 A1 l" R
Anjana" ^/ t0 \2 E: }# X2 u& \6 {. j
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3 P/ g* T' f4 v3 N4 OHaematologica. 2011 Aug 9. [Epub ahead of print]
7 V- D( j& |9 b- LDurable complete molecular remission of chronic myeloid leukemia following6 f K6 i5 w7 T) P4 A0 f) o* i
dasatinib cessation, despite adverse disease features.
/ ]/ n% K7 `/ @! P% q( o) sRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.8 a/ N# j7 T6 i+ Z6 t
Source/ D. u1 y& X( E6 ^/ ], E+ H# z
Adelaide, Australia;
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- C7 W! `! O$ X# l( ^5 |Abstract. b2 U4 F% |9 f1 a
Patients with chronic myeloid leukemia, treated with imatinib, who have a
- U) x7 V' ?) ^! w3 W5 edurable complete molecular response might remain in CMR after stopping8 k+ d2 e4 x V; {" x
treatment. Previous reports of patients stopping treatment in complete molecular: l3 a! o6 A& T# z" i$ [: Q
response have included only patients with a good response to imatinib. We
3 a2 t5 l) k& a+ {: Ndescribe three patients with stable complete molecular response on dasatinib
' ?' |$ u% p# ?/ y+ S* mtreatment following imatinib failure. Two of the three patients remain in5 x1 U- L8 u- ^
complete molecular response more than 12 months after stopping dasatinib. In0 F5 E. Y; @2 ~$ R4 r, r
these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
8 T: M3 g5 b3 p5 ^! |show that the leukemic clone remains detectable, as we have previously shown in& ]( _2 C l9 r5 r* w; L+ g
imatinib-treated patients. Dasatinib-associated immunological phenomena, such as
" A' n9 l/ D! s# t* }the emergence of clonal T cell populations, were observed both in one patient
o- l% `. Q- mwho relapsed and in one patient in remission. Our results suggest that the
[7 L4 ` E# T7 Xcharacteristics of complete molecular response on dasatinib treatment may be
/ t/ b7 P5 @2 csimilar to that achieved with imatinib, at least in patients with adverse
& m4 j' s8 n2 p2 @( V: e6 e9 ddisease features.
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