Paediatric Oncology and Haematology Research Institute N.N.Blokhin Russian Cancer Research Center Moscow Rituximab in children with B-NHL on top of BFM95 protocol Т.Т.Valiev, A.V.Popa, G.L.Mentkevich.

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Transcript Paediatric Oncology and Haematology Research Institute N.N.Blokhin Russian Cancer Research Center Moscow Rituximab in children with B-NHL on top of BFM95 protocol Т.Т.Valiev, A.V.Popa, G.L.Mentkevich.

Slide 1

Paediatric Oncology and Haematology Research Institute
N.N.Blokhin Russian Cancer Research Center
Moscow

Rituximab in children with
B-NHL on top of BFM95
protocol
Т.Т.Valiev, A.V.Popa, G.L.Mentkevich


Slide 2

Results of multicenter studies on
III/IV stages childhood B-NHL
Protocol

EFS (3-5y)

Authors

BFM90

69.1%

Meng JH et al. 2012

POG Total

79%
B-ALL – 65%

Bowman WP et al.
1996

CCG Hybrid

60% incl B-ALL

Cairo MS et al. 2002

NHL-BFM90

73%
B-ALL 74%

Reiter A et al. 1999

NHL-BFM95

81%
B-ALL 77%

Woesserman W. et al.
2005

FAB/LMB96

79%

Patte C. et al. 2007


Slide 3

EFS in pediatric pts with B-NHL in Russia (2004)

В
е
р
о
я
т
н
о
с
т
ь

Р=0,035

Е.В.Самочатова, Н.В.Мякова и др. Гематология и трансфузиология»,2004,№1,с.3;

годы


Slide 4

Literature data are limited




3-year EFS in children with B-NHL III/IV
stages treated by FAB/LMB96 (R+) - 95%
FAB/LMB96 (R-) – 84%

Goldman , ASH, Abstract No 2702, 2011


Slide 5



Overall response rate 41%

Rituximab toxicity (grade III/IV)
-General condition 15%
-Fatigue 13%
-ALT/AST 8%
-Anaphylaxis 7%
-Infection 3%



Slide 6

B-NHL-BFM 95 protocol modification
(Italian experience)
(A.Rosolen, M.Pillon, L.Mussolin 2012)


Slide 7

Modified B-NHL BFM95 protocol
(rituximab regimen) 2007-2010
4 risk group

AA
BB
3 risk group

CC

AA

АА

СС

АА

ВВ

BB

ВВ

CC


Slide 8

Patients characteristics
R+
(n=28)

R(n=25)

Age

3-17y (median 8,2y)

3-16 y (median 7,8y)

m/f

23/5

22/3

BL

23 (82%)

21 (84%)

DLBCL

2 (7%)

2 (8%)

PMBCL

3 (11%)

2 (8%)

III

19 (68%)

15 (60%)

IV

9 (32%)

10 (40%)

3

12 (43%)

11 (44%)

4

16 (57%)

14 (56%)

BM+

12 (43%)

8 (32%)

CNS+

3 (11%)

2 (8%)

CD20+

28 (100%)

25 (100%)

Stage
Risk group


Slide 9

Results of modified B-NHL BFM95 protocol
(rituximab regimen)
EFS= 94,4+/-4,3%
R+ (n=28)
(median 73,7+/-4,3 мo)

EFS= 74,8+/-9,7%
R- (n=25)
(median 119,8+/-8,7 мo)


Slide 10




EFS in group with M1 – 91,9%
EFS in group without M1 – 92,5%


Slide 11

Modified B-NHL BFM95
(rituximab regimen, block reduction)
2010-…

4 risk group

AA
BB
3 risk group

CC

AA

АА

СС

АА

ВВ

BB

ВВ


Slide 12

Comparative analysis of block reduction
and standard block therapy with
rituximab
Block reduction
R+
(n=10)

Standard block
therapy R+
(n=23)

10 (100%)

23 (100%)

III

6

14

IV

4

9

0

8

10 (100%)

15

9/10
(24 mo)

22/23
(72 mo)

Relapse

0

0

Progression

1

0

Induction death

1

1

BL

Stage

Risk group 3
4

Alive
(duration)


Slide 13

Treatment failure for B-NHL BFM95
protocol (rituximab regimen)

Failure
Progression

R+
(n=38)
1 (3%)

R(n=25)
2 (8%)

Relapse

0 (0%)

1 (4%)

TRD

2 (5%)

3 (12%)


Slide 14

Treatment toxicity for B-NHL BFM95
protocol (rituximab regimen)
Toxicity

R+
(n=38)
37 (97%)

R(n=25)
23 (92%)

Transfusions

36 (95%)

22 (88%)

Mucositis
grade 3/4ст

38 (100%)

24 (96%)

Febrile neutropenia

38 (100%)

25 (100%)

Haematologic
grade ¾


Slide 15

Conclusions
1.

Rituximab with B-NHL BFM95 protocol as a first-line
treatment in children with B-NHL (unfavorable stages
and risk groups) increased EFS significantly

2.

Toxicity profile of rituximab regimen was comparable
with standard B-NHL BFM95 protocol

3.

It is possible to reduce block number for pts with BNHL R4 with early complete response from six to five


Slide 16

Thank You
for attention!