Treatment of Childhood Acute Lymphoblastic Leukemia

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							Die Prognose der akuten lymphatischen Leukämie
          Eine Analyse nach drei Jahrzehnten

                         Günter Henze
        Otto-Heubner-Centrum für Kinder- und Jugendmedizin
           Klinik für Pädiatrie m. S. Onkologie/Hämatologie
               Charité, Universitätsmedizin Berlin, CVK
                       guenter.henze@charite.de
               ALL-BFM (70)
                Uniform Treatment




                                    Maintenance
          I




Weeks 0       8 12     18 22        30
                               Comparison of the Probability of CCR in 2 German ALL Trials
                                                 DAL 71/74 and BFM 70
                                                       Total Group
Cumulative Proportion in CCR




                                                      BFM 76/79   (N = 158; 0.72 ± 0.05)


                                                             BFM 70/76    (N = 119;   0.55 ± 0.05)



                                                                   DAL 71/74   (N = 495;   0.33 ± 0.02)




                                                                                                 Years
                    ALL-BFM (76)
                   Risk Adapted Treatment


  Arm
                                            Maintenance
   A           I
Standard



  B1           I          II
 High



  B2           I                       II
 High




 Weeks     0       8 12        18 22        30
                               Comparison of the Probability of CCR in 3 German ALL Trials
                                                  DAL 71/74, BFM 70 and 76
Cumulative Proportion in CCR




                                                       Total Groups

                                                       BFM 76/79 (N = 158; 0.72 ± 0.05)


                                                                   BFM 70/76 (N = 119; 0.55 ± 0.05)




                                                                     DAL 71/74 (N = 495; 0.33 ± 0.02)




                                                                                                        Years
ALL-BFM
Front-Line




     ALL-BFM 70/76   Einheitliche Therapie

     ALL-BFM 70/76   Risiko-adaptierte Therapie (Prot. II)

     ALL-BFM 79/81   Reinduktion Standard Risiko (Prot. III)

     ALL-BFM 81/83   MHD-MTX (500mg/m²), B-NHL/ALL
ALL-REZ BFM 1983-2008
Ausgangslage



          20-25% der Kinder mit ALL erleiden ein Rezidiv

          ALL-Rezidiv ist eine häufige Diagnose

          ALL immer noch Todesursache für 15% der Kinder

          Multizentrische Therapieoptimierungsstudien

          Etwa 100 Behandlungseinrichtungen in Deutschland,

           Österreich, (Schweiz, Tschechien und Kanada)
Studien ALL-REZ BFM 83-90
Übersicht
ALL-REZ   Gruppe Woche 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27
  BFM                                                                                                                    M24
           A            CV E        R1        R2        R1           R2
                                                                     R2        R1           R2        R1
                                                                                                      R1           R2



                                                                                                            M24
  83       B            CV R1       R2        R1        R2           R1        R2           R1
                                                                                            R1        R2



                                                              M12
           C            CV R1       R2        R1        R2



          Gruppe Woche 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
                                                                               R2           R1        R2           R1           R2    M24
           A       R    CV      F             R1        R2           R1




 85/87     B      (R)   CV R1       R2        R1        R2           R1        R2           R1        R2    M24



           C      (R)   CV R1       R2        R1        R2           R1        R2    M12


          Gruppe Woche 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

                                                                                                                              M24
           A/B     R    CV R1            R2        R3        R1           R2        R3           R1        R2           R3


  90
           C       R    CV R1            R2        R3        R1           R2        R3    M24


          R: Randomisierung MTX (12) vs 5 vs 1 g/m²
                                ALL-REZ BFM 83 - 96
                 Ereignisfreies Überleben (EFS) und Überleben (SRV)


       1.0                                                      1.0

        .8                                                       .8

        .6                                                       .6




                                                         pSRV
pEFS




        .4                                                       .4

        .2                                                       .2

       0.0                                                      0.0
             0     5       10       15           20   Years           0    5      10       15      20

       N = 1615; cens. = 568; pEFS = 0.32 ± 0.01                N = 1615; cens. = 680; pSRV = 0.39 ± 0.01

       Spätestes Folgerezidiv nach 12.3 Jahren
Wahrscheinlichkeit für Ereignisfreies Überleben
Multivariate Cox-Regression



        Parameter             Risk ratio             p
        Zeitpunkt                                 < 0.0001
        Spät                     1
        Früh                     3.74
        Sehr früh                6.27

        Immunphänotyp                             < 0.0001
        non-T                    1
        T / prä-T                2.24

        Lokalisation                              < 0.0001
        Isoliert EM              1
        Kombiniert KM            2.06
        Isoliert KM              3.51
Neue Risiko-Stratifizierung seit Studie 95/96
EFS (ALL-REZ BFM 83-96) SZT zensiert



            1,0



             ,8                                               S1: n = 51; pEFS = .75 ± .06



             ,6
     pEFS




                                                       S2: n = 577; pEFS = .38 ± .02
             ,4



             ,2       S3: n = 153; pEFS = .02 ± .02
                                                   S4: n = 252; pEFS = .04 ± .02
            0,0

                  0    2           4               6             8          10     years
                                       p < 0.001
        Design of Trial ALL-REZ BFM 95/96
        week   1       2   3    4   5    6   7   8       9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

group

S1          C F1           F2           R1           R2            R1        R2        R1           R2         M12


                                         d 36

S2      R   C F1 G? F2          G?      R1   G?      R2            R1        R2        R1           R2     R1     R2    M24




S3      R   C F1 G? F2          G? R1        G?      R2                 Stem cell transplantation




S4                 I       G S       G       S       G     S   G        Stem cell transplantation




        R: G-CSF randomization in groups S2/S3
                                   ALL-REZ BFM 95/96
                                 Group S2: MRD after F2 (d 36)
               Event-free survival                               Overall survival

                  1,0                                            1,0

                     ,8                                           ,8

                     ,6                                           ,6
        pEFS




                                                          pOS
                     ,4                                           ,4

                     ,2                                           ,2
                  0,0                                            0,0
                     0       2    4     6     8    10               0   2     4     6     8    10
                                   Years                                       Years

_____   MRD <10-3         n= 46; cens.= 36; pEFS(6y)= .78 .06          cens.= 42; pOS(6y) = .91  .04
____    MRD =>10-3        n= 34; cens.= 7; pEFS(6y)= .21 .07           cens.= 12; pOS(6y) = .35  .08
                          p<0.001                                       p<0.001

                                                                                                         Update 03 2007
Eckert C, et al. Lancet 2001
                          Protocol ALL-REZ BFM 95/96 vs P02/2002
                                         EFS by MRD post Induction

       1,0                       95/96                         1,0                P02/2002

        ,8                                                      ,8


        ,6                                                      ,6
pEFS




                                                   pEFS
                                   P < .001
        ,4                                                      ,4


        ,2                                                      ,2                  P = . 719
                                                                                                        years
       0,0                                                     0,0
             0        2      4      6      8     10                  0      2      4      6         8      10


                 MRD
                 <10-3: n = 46; cens. = 35; pEFS = .76 ± .06             N = 92;cens. = 70; pEFS = .67 ± .06
                 ≥10-3: n = 34; cens. = 6; pEFS = .18 ± .07              N = 92;cens. = 67; pEFS = .63 ± .05

       ALL-REZ BFM                                                                              01/09
MRD in Stem Cell
 Transplantation
                                                                         MRD prior to SCT in relapsed ALL


                                  MRD groups prior to allogeneic SCT in ALL CR2 and 3:
                                                                         EFS / CI relapse; Cut-off 10-4

                                  1.0
                                                                                                                  1.0
                                                       EFS                                                                                     CI
Event-free Survival Probability




                                  0.8                                                                             0.8




                                                                                           Cumulative Incidence
                                                       MRD < 10-4

                                  0.6                                                                             0.6                    MRD ≥ 10-4




                                  0.4                                                                             0.4
                                                        MRD ≥ 10-4

                                  0.2                                                                             0.2
                                                                                                                                        MRD < 10-4



                                  0.0                                                                             0.0
                                        0    1     2      3          4      5     6                                     0   1       2      3          4      5     6
                                                   Years after SCT                                                                  Years after SCT
                                        MRD
                                        < 10-4: n = 46; cens.= 29; pEFS = .60  .08                                             CI (relapse) = .13  .06
                                        ≥ 10-4: n = 45; cens.= 14; pEFS = .27  .07                                             CI (relapse) = .57  .08
                                                p = .036                                                                        p < .001


ALL-REZ BFM                                                                                                                                               Bader et al., JCO 2009
“Isolated” Extramedullary Relapse
         (In the Era of MRD)
                   Childhood relapsed ALL – isolated extramedullary relapse


Event-free Survival of Children With Extramedullary Relapse
by the extent of leukemic BM metaplasia (SCT censored): ALL-REZ BFM 83 - 95


                       1.0

                        .8

                        .6
                pEFS




                        .4

                        .2

                       0.0
                             0    2        4         6        8        10

                                                                  years
         _____ M1 (< 5%):          n = 162; cens. = 86; pEFS = 0.48  0.04
         _ _ _ M2 ( 5 and <25 %): n = 44; cens. = 21; pEFS = 0.45  0.08
         --------- M3 ( 25%):     n = 166; cens. = 84; pEFS = 0.37  0.06

                                                                              11./13.10.2007
                                          Childhood relapsed ALL – Sub-microscopic BM involvement at relapse diagnosis


                     Results
                                     Frequency of sub-microscopic bone marrow involvement at relapse diagnosis
                                                                                                                       patients
                                                            28%
                                                           n=18 (28%)                                     22%
                                                                                                          n=14 (22%)                                                 34%
                                                                                                                                                               n=22 (34%)                                16%
                                                                                                                                                                                                     n=10 (16%)

                                       1 2 3 4   5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64

                    1.00E+00
sub-microscopic BM involvement




                          1.00E-01



                          1.00E-02



                          1.00E-03



                          1.00E-04



                          1.00E-05                                                                                                                                                                                10-2
                                                                                                   10-4 -- <10 -3
                                                                                                      10
                                                                                                                                                        10-3 - <10 -2
                                                                                                                                                          10 -
                                                                                                                                                                                                             10-2
                                                          <10  -4                                          -4    -3                                             -3    -2
                                                         <10-4                                              <10                                                  <10

                                 - CNS relapses have higher involvement than testicular relapses
                                  cut-off: 10-3 () 62% vs 29% p=0.029
                                  cut-off: 10-4 () 80% vs 57% p=0.08
                                                                                                                                                                            Hagedorn et al., Blood 2007
                                                Childhood relapsed ALL – Sub-microscopic BM involvement at relapse diagnosis


                                                                                  SITE OF RELAPSE
                                                              Cumulative incidence of subsequent relapse
 CNS relapses (n=39)                                                                              testicular relapses (n=21)

                                      1.0                                                                                              1.0
 cumulative incidence of subs. rel.




                                                                                                  cumulative incidence of subs. rel.
                                                                                      10-4
                                      0.8                                                                                              0.8


                                      0.6                                                                                              0.6


                                      0.4                                                                                              0.4
                                                                                                                                                                                         10-4

                                      0.2                                            <10-4                                             0.2                             <10-4


                                      0.0                                                                                              0.0

                                            0    1        2        3         4        5       6                                              0   1        2        3         4       5      6
                                                                 years                                                                                           years
____sub-micros.BMinv.                             <10-4 n= 8; cum.inc.(6y) = 0.13  0.00                                                         n= 9; cum.inc.(6y) = 0.24  0.03
_ _ _sub-micros.BMinv.                            10-4 n= 31; cum.inc.(6y) = 0.82  0.02                                                        n= 13; cum.inc.(6y) = 0.31  0.02
                                                        p=0.0059                                                                                          p=0.059


                                                                                                                                                               Hagedorn et al., Blood 2007
               Childhood relapsed ALL – Sub-microscopic BM involvement at relapse diagnosis


                                     TIME POINT OF RELAPSE
                                    Probability of event-free survival

 Very early / early (n=44)                                           Late (n=20)




____sub-micros.BMinv.  <10-4 n=12; cens.=8; pEFS(5y) = 0.67  0.14          n= 6; cens.= 3; pEFS(5y) = 0.42  0.22
_ _ _sub-micros.BMinv. 10-4 n=32; cens.=8; pEFS(5y) = 0.11  0.89          n=14; cens.=10; pEFS(5y) = 0.70  0.13
      p=0.016                                                               p=0.21

                                                                                      Hagedorn et al., Blood 2007
       Protocol ALL-REZ BFM Pilot 02/2002 vs 95/96 and 83-90
                                                    N = 2085

       1,0              Event-free Survival                   1,0            Overall Survival

        ,8                                                     ,8



        ,6                                                     ,6




                                                        pOS
pEFS




        ,4                                                     ,4


        ,2                                                     ,2
                           p < 0.001                                             p < 0.001
                                                                                                           years
       0,0                                                    0,0
             0      2       4          6    8      10               0    2        4          6       8        10


             P02/2002: n = 471; cens. = 265; pEFS(6y) = .47 ± .03       cens. = 311; pOS(6y) = .55 ± .03
         95 / 96:       n = 581; cens. = 220; pEFS(6y) = .39 ± .02      cens. = 266; pOS(6y) = .48 ± .02
         83 - 90:       n = 1033; cens. = 299; pEFS(6y) = .29 ± .01     cens. = 356; pOS(6y) = .36 ± .02


       ALL-REZ BFM                                                                               01/2009
                  ALL – Studien in Deutschland 1970-95
                                Überleben
    1.0

                                                    ALL-BFM 90 (N=2178): .82 ± .01
    0.8
                                                    ALL-BFM 86 (N= 998): .78 ± .01
                                                    ALL-BFM 83 (N= 653): .71 ± .02
    0.6
P                                                   ALL-BFM 70 (N= 119): .62 ± .04


    0.4
                                                    DAL 70-74 (N= 495): .33   .02

    0.2


    0.0
          0   1     2   3   4    5    6     7   8      9      10        Jahre
                     ALL- Therapie in Russland
                     Ergebnisse der MB-Gruppe seit 1991
Wahrscheinlichkeit




                                        Überleben: N = 3192; 0.73    0.01

                          Ereignisfreies Überleben: N = 3192; 0.67   0.01




                                   Jahre
ALL-MB 2000 – Ongoing Study
Participating Centres




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