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。8 R& n$ `3 y( H4 K' c0 f6 Z6 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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: ^% j* R; c4 }% N$ u! K4 x; z作者:来自澳大利亚
1 O% J! P. Z7 c o3 k来源:Haematologica. 2011.8.9. E9 U7 a+ P3 F0 B. j4 j. N
Dear Group,
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% W; B+ z3 q9 [# c! `( E- \Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML; b) @4 }/ M$ _
therapies. Here is a report from Australia on 3 patients who went off Sprycel& S ~! J8 s5 J- Q9 g4 l
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients9 e: `& H( b( S) S+ L4 s
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel
. u( v( D' _0 F4 c& A$ y* U" q, Hdoes spike up the immune system so I hope more reports come out on this issue.5 G$ m6 A; y! y8 T4 a
& y4 }/ j- X y" s- K+ v* u9 m
The remarkable news about Sprycel cessation is that all 3 patients had failed C! C4 ~& O) h
Gleevec and Sprycel was their second TKI so they had resistant disease. This is' b3 M, Z6 I3 H' o0 A- `
different from the stopping Gleevec trial in France which only targets patients
* G4 Z9 S5 U, f7 \+ zwho 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! r8 d3 R, p+ J6 E
response off Sprycel is sustained.
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6 c0 P/ K9 d: S# Q/ f1 jBest Wishes,
8 j$ K, Z; ]/ P: N# v- S' a: TAnjana
) O O1 s$ C- A) \/ B" ^ y$ o3 O7 ]: j, Q. R( X8 g
6 [/ Q4 E) L6 Y! W% d# Z7 o/ {- B! S$ b4 C$ _4 y
Haematologica. 2011 Aug 9. [Epub ahead of print]
# q1 o* U+ i$ O6 V, vDurable complete molecular remission of chronic myeloid leukemia following
- N, ]* C3 w* z. I3 r Jdasatinib cessation, despite adverse disease features.
$ W: G' \% w5 l5 T4 J; p/ S! I4 aRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.
6 W+ M4 O6 Q- j' |: m% YSource T q0 H5 U. o9 p3 K/ g
Adelaide, Australia;3 x2 V! d( g( E& g9 X2 q
2 w, P% T' Q0 j; h6 dAbstract: I8 ~5 a/ v$ [# X9 ^! k% ]
Patients with chronic myeloid leukemia, treated with imatinib, who have a
2 O& p1 [, T* [: F3 ndurable complete molecular response might remain in CMR after stopping$ u+ c2 j l9 r& {$ u
treatment. Previous reports of patients stopping treatment in complete molecular
: ?8 a) H; @$ e& V; x2 O- _' dresponse have included only patients with a good response to imatinib. We
' F' a* B! N# Bdescribe three patients with stable complete molecular response on dasatinib4 u: e C0 D$ U1 D3 B
treatment following imatinib failure. Two of the three patients remain in, [3 @! [4 R% [; d" j: b$ d
complete molecular response more than 12 months after stopping dasatinib. In. ~& c+ X1 z8 q9 ]& S2 T1 _ G
these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
) M( c9 d& \; ~! ^' B5 m9 Mshow that the leukemic clone remains detectable, as we have previously shown in ~ a& C2 v8 |) d0 N& V
imatinib-treated patients. Dasatinib-associated immunological phenomena, such as) K5 b% \* y- O4 v
the emergence of clonal T cell populations, were observed both in one patient/ x2 ?* G. R0 W3 K/ _
who relapsed and in one patient in remission. Our results suggest that the
6 @4 C6 _" }& F* ~2 X$ u0 wcharacteristics of complete molecular response on dasatinib treatment may be: m" y( D* d. X* Q
similar to that achieved with imatinib, at least in patients with adverse
+ Z- x5 [; w c0 w% i) sdisease features.: M- l) I# e5 h/ F" |% `6 `
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