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) Q" b( X8 u0 g+ r/ U$ E 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。; @4 [% V6 x: H7 I+ W
% I" ?* ]* E8 |作者:来自澳大利亚
4 D4 d% |7 \) E4 Y$ n b' _' D来源:Haematologica. 2011.8.9.: {5 E- H2 q. a. X
Dear Group,5 Z4 l' ?1 @* E& o8 B
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Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML' S. p( Y& \1 Z4 A* g) L% V \/ F
therapies. Here is a report from Australia on 3 patients who went off Sprycel3 L! K5 U' ]) ~8 g: n
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients
, k' {1 A1 ?+ Q# `remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel/ [+ |& s% \( w7 A3 T" z
does spike up the immune system so I hope more reports come out on this issue. N5 r, o# V( H( k
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The remarkable news about Sprycel cessation is that all 3 patients had failed
6 S" V& ^0 e; L' c6 @ BGleevec and Sprycel was their second TKI so they had resistant disease. This is# W5 a+ [: j5 `/ w5 _6 U: z
different from the stopping Gleevec trial in France which only targets patients
8 X* o1 B2 F4 X2 }; a* K& n3 ~who have done well on Gleevec.
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: Z0 R) v6 n. l8 V4 Q% k5 uHopefully, the doctors will report on a larger study and long-term to see if the* ?4 b$ f& E" w0 [9 E! u# H
response off Sprycel is sustained.
+ m9 |* F( J4 k) ^7 ^% P2 |" p* W7 h# U! |2 `6 s5 W& \* n
Best Wishes,
7 t) x2 Y$ |+ w' F+ o) xAnjana
V1 a3 \! \5 S* M8 H$ P' |9 `# Z4 Z: K3 Z' f, z1 ]
0 V! {. _% r u: f4 L% O9 `
$ t3 W; G! g8 G4 _6 HHaematologica. 2011 Aug 9. [Epub ahead of print]
4 K C. {% S9 `* k5 BDurable complete molecular remission of chronic myeloid leukemia following
: C! ^" t6 ~7 r' P8 H% Xdasatinib cessation, despite adverse disease features.; n" X3 t3 t4 x: Y R
Ross DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.( @- |* k7 {' b; F( S
Source
# ?* [$ \2 d5 ?Adelaide, Australia;
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- f; G7 f: W0 p& }+ B* O- Q) BAbstract% z9 R" ~* L3 W/ [' F
Patients with chronic myeloid leukemia, treated with imatinib, who have a
9 J1 w) {" ^2 b z8 K* Ndurable complete molecular response might remain in CMR after stopping- X) T+ c* V5 F4 q9 s
treatment. Previous reports of patients stopping treatment in complete molecular
5 X+ O4 C* a' O7 g' d5 Aresponse have included only patients with a good response to imatinib. We
2 D& r- _: C8 Adescribe three patients with stable complete molecular response on dasatinib7 O0 Q: u" W* |* j. T
treatment following imatinib failure. Two of the three patients remain in8 ~) N, B/ `3 p; W+ q
complete molecular response more than 12 months after stopping dasatinib. In
+ _) J, B/ `6 a' c: g4 u4 gthese two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
]# l! F. w. F: ^& a. a2 D8 Jshow that the leukemic clone remains detectable, as we have previously shown in
, G& a0 S0 J3 Himatinib-treated patients. Dasatinib-associated immunological phenomena, such as
3 h/ r: w; J3 S/ n; |' p4 nthe emergence of clonal T cell populations, were observed both in one patient: w4 q8 ^" S+ ?5 \; b# E2 b& `
who relapsed and in one patient in remission. Our results suggest that the
6 I+ M6 \9 q0 {9 l1 J+ Lcharacteristics of complete molecular response on dasatinib treatment may be
/ |; M3 k" n& a Y2 isimilar to that achieved with imatinib, at least in patients with adverse
" l$ U) ^, L. `3 s. Jdisease features.' `$ K! U, K+ U9 I& V7 \6 d
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