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。
$ _& v+ R: z' N( R 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。
7 I) t# g. ]" ^4 I; H
2 \" w0 F! B" @5 Y作者:来自澳大利亚
' t8 b0 ~) _3 z+ f* M来源:Haematologica. 2011.8.9.4 E# B; T5 L; h p: M: A& a% M
Dear Group,$ a% j( l/ |1 ]# J- E; j' O
8 Y1 e1 s5 ?3 @) n. I$ Z
Some of you are on Dasatinib (Sprycel) and we wish to give news on all CML
3 Q+ T9 ?7 H6 k. t \- u/ y& Mtherapies. Here is a report from Australia on 3 patients who went off Sprycel# ~6 x' J; n. g; K
after stable molecular response (PCRU). 1 patient relapsed but 2/3 patients1 d) ^* w& W8 `5 L
remain in stable PCRU at the 1 year mark. Some of you may remember that Sprycel/ e1 t G" m% u) Y5 H% X
does spike up the immune system so I hope more reports come out on this issue.) K& ]! X' m6 i2 V O6 @2 {8 `0 y! U
- m7 K" B+ Z v- m. i( J
The remarkable news about Sprycel cessation is that all 3 patients had failed
# h6 I7 r) v2 Z4 g' v4 ~ J& mGleevec and Sprycel was their second TKI so they had resistant disease. This is0 C/ Z! L+ f4 c% |
different from the stopping Gleevec trial in France which only targets patients/ g; O5 j% `8 U8 }6 ~6 g
who have done well on Gleevec.6 O* D6 r2 \5 ~% V: |" e
6 b- e6 p8 B$ X# Z, p
Hopefully, the doctors will report on a larger study and long-term to see if the9 G N5 Q2 O3 a
response off Sprycel is sustained.
, r/ O: j$ V/ @6 a" g
% x6 F' ]7 M0 A ^$ ABest Wishes," j* Q, |7 B5 D4 Y2 F+ P/ m
Anjana$ Y# v1 R" Q9 F& T$ `) [
+ J& v4 A) ^5 |4 n3 o: H( f8 R
( B# D3 p- R/ @3 z0 H; A
2 g2 X' m& F- j/ t: OHaematologica. 2011 Aug 9. [Epub ahead of print]9 ]2 v1 W l ]6 }9 B, L, Z" y
Durable complete molecular remission of chronic myeloid leukemia following& P4 r+ n, J- v- I1 I- ?3 x
dasatinib cessation, despite adverse disease features.
! k3 A, A6 o& M! TRoss DM, Bartley PA, Goyne J, Morley AA, Seymour JF, Grigg AP.
1 ~% m4 m+ v( O+ O/ aSource, a3 N0 }2 Q: ~* H% E4 @; E! f
Adelaide, Australia;
4 o/ [; d: k3 k) G0 N7 D E) y# F0 k% ~$ l5 T& J- Q7 _
Abstract% i( [+ F4 F7 G/ U- m9 P5 D0 F5 q
Patients with chronic myeloid leukemia, treated with imatinib, who have a2 g/ U4 G2 y& s4 }3 p& a$ U `/ A
durable complete molecular response might remain in CMR after stopping0 N( J0 S5 [3 z
treatment. Previous reports of patients stopping treatment in complete molecular5 k% n' M, k" Q) n
response have included only patients with a good response to imatinib. We) N( f. Z6 m! i4 J4 W6 I
describe three patients with stable complete molecular response on dasatinib
) I& \) e" b. S0 e! Ltreatment following imatinib failure. Two of the three patients remain in
& z$ {+ y: ~% t7 q% v$ l- a4 \) Hcomplete molecular response more than 12 months after stopping dasatinib. In% ^! y& }2 P7 r d( O7 [# Q T
these two patients we used highly sensitive patient-specific BCR-ABL1 DNA PCR to6 I, J) q9 s( z2 j6 z
show that the leukemic clone remains detectable, as we have previously shown in& d, E x7 a0 \3 D
imatinib-treated patients. Dasatinib-associated immunological phenomena, such as1 [' \, m! T- V& @5 x$ K
the emergence of clonal T cell populations, were observed both in one patient9 d0 y. r* h6 Z) W: U% Q
who relapsed and in one patient in remission. Our results suggest that the
9 X. g" t$ i5 H$ v) Ncharacteristics of complete molecular response on dasatinib treatment may be
/ `# i# J% G* \4 X) r- n' {1 n* Usimilar to that achieved with imatinib, at least in patients with adverse; j" j( i. p" ^, N# l! I. C+ W% _8 n% I
disease features.* _; a; T6 ~0 g6 R: [6 b+ x
|