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。
. d) O3 p8 {8 l0 d9 _ 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 t% q# w8 X/ g _( d1 a4 n g
6 r5 Q( h- s- g+ ~+ h作者:来自澳大利亚
5 l! D2 s) w5 h8 p9 O% @. F来源:Haematologica. 2011.8.9.- M& O5 Q, \$ w+ M* K
Dear Group,
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Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML5 b% ^ U" a7 c% C6 V A( Y3 X
therapies. Here is a report from Australia on 3 patients who went off Sprycel
- Z6 s4 C$ \. w/ W! ?2 ?0 Eafter stable molecular response (PCRU). 1 patient relapsed but 2/3 patients9 ^9 O' L* v; O
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel$ F9 Y8 j3 ~- i% {5 i
does spike up the immune system so I hope more reports come out on this issue.* z- v; P- @+ b% z4 E
& L1 g, z: R/ d4 e, hThe remarkable news about Sprycel cessation is that all 3 patients had failed
5 _& F z( m/ A& E# O E: aGleevec and Sprycel was their second TKI so they had resistant disease. This is
0 M8 n' J, U* S% i+ [3 b, @' N Z5 _different from the stopping Gleevec trial in France which only targets patients
( n' M# ^# J0 U* k5 x2 \/ m8 @& B% _who have done well on Gleevec.; B+ I7 s/ R' M5 @
t* k% P: a8 q/ W1 @. n3 A
Hopefully, the doctors will report on a larger study and long-term to see if the/ F" M L+ r4 y8 c, R- E
response off Sprycel is sustained.
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+ S. m& j. r! Y0 Y- |2 b) xBest Wishes,
* K; H/ v' d$ h9 u" J4 c; C+ q+ iAnjana
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Haematologica. 2011 Aug 9. [Epub ahead of print]2 g% M0 ~- Z% B( M5 f, _+ n
Durable complete molecular remission of chronic myeloid leukemia following
$ }6 q" _! @" P" Fdasatinib cessation, despite adverse disease features.
& G; U7 m: U/ q( gRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.
4 C! d$ }$ h3 d7 Z$ }Source
7 `' V; F" @7 j+ E- B% e$ `5 T& OAdelaide, Australia;" ~1 _* C+ t) I* i. I' H5 \
( t, d0 P0 ~/ mAbstract
4 J& ~; w4 x0 b! U6 CPatients with chronic myeloid leukemia, treated with imatinib, who have a
" l& Y, O( B, r( e* pdurable complete molecular response might remain in CMR after stopping
1 J4 {3 o* y5 l2 k4 H/ A1 @treatment. Previous reports of patients stopping treatment in complete molecular
6 H/ g+ X( [0 Z' U3 _response have included only patients with a good response to imatinib. We
1 E3 X$ L+ U1 [! i% jdescribe three patients with stable complete molecular response on dasatinib
9 Q/ Q8 E) V' u- g- ?- P" B" ^treatment following imatinib failure. Two of the three patients remain in5 _' k& ~, Z6 z6 ~9 M
complete molecular response more than 12 months after stopping dasatinib. In
1 Y" U3 |! ^4 B& ^4 c: N: Y7 `these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to
" H" R3 l- ~) Mshow that the leukemic clone remains detectable, as we have previously shown in
0 k5 A, a* {) o0 o! y4 r5 limatinib-treated patients. Dasatinib-associated immunological phenomena, such as8 l: m# T8 t! S4 e& W
the emergence of clonal T cell populations, were observed both in one patient
7 `; B) c2 b, W$ L9 fwho relapsed and in one patient in remission. Our results suggest that the0 Q0 F7 N0 l- `4 ^
characteristics of complete molecular response on dasatinib treatment may be
) {* [1 }( u9 c6 R- Rsimilar to that achieved with imatinib, at least in patients with adverse
6 B5 G$ N5 Z, }% o' E$ Cdisease features./ M5 t) R5 N: P; {& U
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