follicular lymphoma - belgian hematology society · – radio-immunotherapy (zevalin) –...
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FOLLICULAR
LYMPHOMA
Ann Janssens
MD, PhD
Hematology
UZ Leuven
BHS course: indolent lymphoma
7th february 2015
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Non Hodgkin Lymphoma Epidemiology US 1998-2011
Follicular
22 %
20%
Mantle Cell
6 %
4.8%
DLBCL
35 %
39.2%
MALT
8 %
Marginal Zone
3 %
10% Others
6 %
anaplastic T/null
2 %
1.1%
Péripheral T cell
7 %
2% lymphoblastic
2 %
Burkitt
1 %
2%
SLL/ CLL type
8 %
5.3%
Non Hodgkin’s Lymphoma Classification Project, Blood 1997
Go et al. EHA 2014, abstract
M age 67y
M 52.5%
B 83%
T/ NK 5%
NOS 12%
Lyplasmocytic ly
1.4%
T-AILD
0.8%
Incidence FL Europe
5-7/100000
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WHO: B-cell neoplasms
• Precursor B-cell neoplasm
– B-ALL, lymfoblastenlymfoom
• Mature B-cell neoplasms – B-cell chronic lymphocytic leukemia/small lymphocytic
lymphoma
– B-cell prolymphocytic leukemia
– Lymphoplasmacytic lymphoma
– Splenic marginal zone B-cell lymphoma Hairy cell leukemia
– Plasma cell myeloma/plasmacytoma/MGUS
– Extranodal marginal zone B-cell lymphoma (MALT)
– Nodal marginal zone B-cell lymphoma
– Follicular lymphoma
– Mantle cell lymphoma
– Diffuse large B-cell lymphoma
– Burkitt lymphoma/Burkitt cell leukemia
stage 3-4 at diagnosis 80%
bone marrow invasion 50%
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FL-cells are the malignant
counterpart of normal germinal
center B-cells
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How to diagnose and stage a FL?
• Clinical data
– Personal history
– Clinical examination
• Blood examination – Full blood count
– LDH
2 microglobulin
– HIV, hep B-C
• Histopathology
• Bone marrow/threphine
• Imaging
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Diagnosis of FL on histopathology
• Lymph node biopsy
– Inguinal nodes not first choice due to reactive changes
– Cervical nodes are prefered
– A growing node is also prefered
• Fine needle aspiration DD reactive vs suspected H&N regio: DD epithelioma
• Core biopsy: no impression of Ln-strukture
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FL immunohistochemistry
CD20
CD10 Bcl-2
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FL immunohistochemistry
CD3
CD4 CD8
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Grade 1 Grade 2 Grade 3
Follicular lymphoma: Grading
Histological subtype Number of centroblasts/HPF
Grade I 0–5
Grade II 6–15
Grade III > 15
Grade IIIa centrocytes still present
Grade IIIb centroblasts form solid sheets with
no residual centrocytes Treat as a DLBCL
Treat as a FL
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BONE MARROW EXAMINATION
Bone marrow aspirate
+ biopsy
+ immunophenotyping
+ genetics
• For diagnosis or staging FL? Yes
• Unexplained cytopenia (disease related, auto-immune, drug related) Yes
• Confirming complete remission
after treatment : Yes
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CD20
Bone marrow infiltration in FL
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+ additional genetic abnormalities
T(14;18) genetic hallmark of FL
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How to diagnose and stage CLL?
• Clinical data – Personal history: most asympthomatic, only 5% reveal B-symptoms
– Clinical examination: 25% lymphadenopathies, 15% organomegaly
• Blood examination: leukocytosis due to a lymphocytosis
• Histopathology
• Bone marrow/threphine
• Imaging:
- CT-scan neck, thorax, abdomen & pelvis
- PET-CT
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International prognostic index for
follicular lymphoma ( FLIPI-index)
• Age :< of > 60 jaar
• Stage :I, II vs III, IV
• LDH :nl vs elevated
• Hb :> 12 vs <12 g/dl
• N° of nodal sites :> 4
• Number of Nodal sites > 4
LDH > normal
Age > 60
Ann Arbor Stage III-IV
• Hemoglobin < 12
‘N O L A S H’
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Follicular Lymphoma
Survival according FLIPI-index
Solal-Celigny, P. et al. Blood 2004;104:1258-1265
10 y OS
71%
51%
36%
N= 1795
Factors,
n Risk Patients, % 5-Yr OS, % 10-Yr OS
0-1 Good 36 91 71
2 Intermediate 37 78 51
3 Poor 27 53 36
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M, 51y, new diagnosis FL
Male
<60j
Stage 4
Bone marrow +
LDH nl
Hb >12
B2 elevated
T(14;18)+
FLIPI: 2
FLIPI2: 2
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M, °60y, relapsing FL
Male
60y
Stage 4
Bone marrow +
LDH nl
Hb >12
B2 nl
New Ln biopsy: FL
grade 1-2
T(14;18)pos
FLIPI: 2
FLIPI2: 1
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Follicular lymphoma:
Disease transformation
Transformation to aggressive
lymphoma in ±37% of patients in the
15y following diagnosis
Lister, JCO, 2007
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Survival Patterns are Different for
Indolent and Aggressive NHL
0
25
50
75
100
0 1 2 3 4 5 6 7 8
Pro
bab
ilit
y o
f su
rviv
al
(%)
Years
Indolent NHL (e.g. Follicular lymphoma)
Aggressive NHL (e.g. Diffuse large B-cell lymphoma)
The Non-Hodgkin’s Lymphoma Classification Project. Blood 1997;89:3909–3918
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Treatment options for FL
Treatment
modalities
CVP
CHOP
Flu-combinations
Bendamustine
High-dose therapy
Watchful
waiting
Monoclonal Ab
CIT=
chemo +
Mo Ab
Chlorambucil ,
Cyclophosphamide
Radiotherapy
Kinase inhibitors
Lenalidomide
….
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Follicular Lymphoma: Treatment
• stage I en II ( <3 nodi): involved field irradiation
• Stad III-IV: >60j en asymptomatisch
– Watch and wait
– 50% nood aan behandeling binnen de 24m
– 80 à 90% behandeld eerste 5 j
– ± 20% spontane remissies!
• Stad III-IV: <60j en >60j met symptomen
– Chlorambucil, CVP, CHOP, a-interferon
– Fludarabine en combinaties
– Rituximab, R-CVP of R-CHOP of R-FCM, Rituximab onderhoud
– Zevalin consolidatie
– Autologe transplantatie als consolidatie
– Allogene transplantatiediagnose
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Radiotherapy for localised FL
• Involved field radiotherapy – 37% relapse free at 20y (Macmanus et al)
– 50% stage I cured, 25% stage II (MDACC)
– PFS influenced by tumor size < or > 3 cm and stage I vs II
– Relapses possible even after 30y, however rare > 10y
– 2% “in-field” failure-rate at 20 years
– 85% of failures in “out-of-field” nodal sites
• Extended field radiotherapy-TLI (stage III-IV) (excessive toxicity, > secondary cancers)
• IFRT with chemotherapy (eradication occult disease)
– + Chl, CVP, CHOP,…
– TROG/ALLLG trial ongoing: Involved field RT 30-36 Gy with or
without R-CVP x 6 ( ongoing till 2022)
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Treatment guidelines: stage 1-2
• RT preferred treatment of localized FL
• 24-30 (36) Gy (no difference between 24-45Gy),
involved field
• No data that show that RT is better than other treatment
modalities, also not observation (no prospective trials, only
retrospective data, data acquired before the R-era)
• If RT toxicity outweights the potential benefits then
observation is a reasonable alternative
Hiddemann et al, Leukemia, 2014
Dreyling et al, ESMO guidelines, Ann Oncol 2014
Kuruvilla et al, Canadian guidelines FL 1st line, Clin Lymph Myeloma Leuk 2015
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LymphoCare database
• FL stage 1:
– 27% IFRT
– 28% CIT
– 12% R
– 23% Other R+ IFRT
N= 471
Friedberg JW et al., JCO, 2009 and
Only 206
staged with a
bone marrow
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Follicular Lymfoma
Treatment • stage I en II ( <3 nodi): involved field bestraling
• Stage III-IV: asymptomatic or/and low tumor burden
– Watch and wait
– 50% in need for treatment <24mo
– 80 à 90% treated in the coming 5y
– ± 20% spontaneous remissions!
• Stage III-IV: <60j en >60j met symptomen
– Chlorambucil, CVP, CHOP, a-interferon
– Fludarabine en combinaties
– Rituximab, R-CVP of R-CHOP of R-FCM, Rituximab onderhoud
– Zevalin consolidatie
– Autologe transplantatie als consolidatie
– Allogene transplantatiediagnose
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Wait and see if…
• No systemic symptoms
• < 3 nodal sites
• no bulky nodes
• No splenomegaly >16cm
• No effusions
• No compressive symptoms
• No circulating lymphoma cells
• No cytopenia
• No rapid disease progression
• No renal infiltration
• No bone lesions
• No life treatening organ involvement
• Impairment of qol
• Induction of – myelosuppression,
– fatigue,
– secondary leukemia
• Impairment of collection of
stem cells
• Induction of tumor resistance ?
Increasing risk of transformation ????
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Ardeshna et al, Lancet 2003
Before R era: W&W vs Chl
mTTT: 2.6y
At 10y: 19% not treated
( 40% of >70y)
Higher risk of transformation if W&W???
3 trials
W &W vs Promace-MOPP
W & W vs predimustin
W&W vs IFN-a
No gain in OS
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R-era: W&W vs R stage II-IV, non-bulky (2004-2009)
Ardeshna et al, Lancet Oncol, 2014
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Ardeshna et al, Lancet Oncol, 2014
R-era: W&W vs R stage II-IV, non-bulky (2004-2009)
OS 3y
W&W 94%
R + MR 97%
Improved psychological well-being in the R arms
Time to chemo- or radiotherapy longer in the R-arm
Will early
treatment
impair
further
treatment
wit R or
R-
chemo?
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R-era: R with maintenance or
retreatment
Kahl, JCO, 2014
Time to treatment failure identical
Till progression
Median follow-up: 4.5 y
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Low tumor burden GELF
• No systemic symptoms
• < 3 nodal sites of > 3cm
• no bulky nodes (< 7)
• No splenomegaly >16cm
• No vital organ compression
• No compressive symptoms
• > 5000 clonal lymphocytes
• No cytopenia
• Hb <10,
• plt <100000,
• PMN <1500
FLIPI
low 17%,
intermediate 47%,
high 36%
Kahl, JCO, 2014
GELF: Groupe pour l’etude de lymphome folliculaire
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Kahl B S et al. JCO 2014;32:3096-3102
©2014 by American Society of Clinical Oncology
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Treatment guidelines
low tumor burden FL
• Observation if not fulfilling criteria for starting
treatment according GELF-BLNI criteria
• If results of Ardeshna should be confirmed, R
immediately as risk of relapse is reduced???
Hiddemann et al, Leukemia, 2014
Dreyling et al, ESMO guidelines, Ann Oncol 2014
Kuruvilla et al, Canadian guidelines FL 1st line, Clin Lymph Myeloma Leuk 2015
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Follicular Lymphoma
Treatment • stad I en II ( <3 nodi): involved field bestraling
( relapsen mogelijk zelfs na 30j)
• Stad III-IV: >60j en asymptomatisch
– Watch and wait
– 50% nood aan behandeling binnen de 24m
– 80 à 90% behandeld eerste 5 j
– ± 20% spontane remissies!
• Stage III-IV: symptomatic and/or high tumor burden
– Chlorambucil, CVP, CHOP, a-interferon
– Fludarabine en combinaties, bendamustine
– Rituximab-chemo
– Rituximab maintenance
– Radio-immunotherapy (Zevalin)
– Autologeous transplantation
– Allogeneic transplantation
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Marcus-trial: R-CVP vs CVP - PFS
R-chemo is the standard of care for high tumor burden FL
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Is one chemotherapeutic
regimen better than another?
R-CVP
R-CHOP
R-FM R-
Benda
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Primary Rituximab and MAintenance
Study
PDs/SDs
off study
Rituximab maintenance
1 dose every 8 weeks
for 24 months
Observation
CR/PR
R-CVP 8
or R-CHOP 6 + 2R
or R-FCM 6 + 2R
or R-MCP 6 + 2R
Untreated
follicular NHL
An intergroup international study co-ordinated by
R
A
N
D
O
M
I
Z
E
R-CHOP 74%
R-CVP 23%
R-FCM 3,5%
Salles G et al., JCO, 2011
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Friedberg JW et al., JCO, 2009 and
WW
18%
XRT
5%
R-mono
14%
R-Chemo
53%
Chemo
3%
Clincal trial
6%
Other
1%
National LymphoCare Study Initial Treatment
R-CHOP 55%
R-CVP 23.1%
R-F 15.5%
Other 6.4%
• 2004-2007
• 2728 pat enrolled
• 80% at non academic
sites
• Median age 61y
• F 52%, whites 91%
• Grade 1: 43%,
grade 2: 29%,
grade 3: 19%
• Stage I 17%,
II 15%,
III 29%,
IV 37%
500 pat grade 3:
PFS & OS not
significantly
different between
R-CHOP
and R-CVP (median follow-up: 4.5 yrs)
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PFS in FL after 1st line treatment
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Responses in FL according to 1st line
treatment
Federico, JCO, 2013
TTF 3y OS
R-CVP 46% 98%
R-CHOP 64% 95%
R-FM 61% 93%
N= 534
M age 56 y
R-FM: more myelotoxicity and
secondary malignancies
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The Bright trial:
BR vs RCVP/RCHOP in iNHL and MCL
• Excluded: transformed disease, CLL-SLL, grade 3 FL
• Median age 58-60 y
• iNHL: BR 213, RCVP/CHOP 206
• MCL BR 37, RCHOP 37%
• CR for BR or R-CVP/CHOP non inferior
• More nausea and emesis for BR, antiemetics equal
• Less neuropathy for BR
• Neutropenia > CHOP although more G-CSF use
• Lymphopenia > BR: 66 vs 33%
Efficacy equal
Toxicity different
Flinn, ICML 2013, abstract 084
BR RCHOP RCVP
ORR 97% 90% 83%
CR 31% 23% 23%
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Treatment guidelines
for FL with high tumor burden
• CIT except when chemotherapy is contraindicated
• F-based regimen no 1st line treatment due to
toxicities
• No preference between R-CHOP, R-benda vs R-
CVP
Hiddemann et al, Leukemia, 2014
Dreyling et al, ESMO guidelines, Ann Oncol 2014
Kuruvilla et al, Canadian guidelines FL 1st line, Clin Lymph Myeloma Leuk 2015
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… after induction treatment
consolidation maintenance
Radioimmunotherapy
autoSCT
? R- maintenance
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Median follow-up: 73 mo
PFS 6y favors R-arm: 59.2 vs 42.7% (p<0.0001)
Benefits seen in all 3 FLIPI groups,
CR increased after 2y of maintenance
No difference in OS
Salles et al, Lancet, 2011
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Maintenance after 1st line
• R new standard of maintenace after
induction when >PR
• Expensive
• Toxic.
– More infections
– More neutropenia
maintenance Re-treatment
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Vidal et al, JNCI 2009
Rituximab maintenance in FL Infection-related adverse events in patients with follicular
lymphoma treated with rituximab maintenance compared
with observation
Hazard ratio 1.99 ( CI 1.21-3.27)
Van Oers: gr 3-4 infections:
9.7% vs 2.4%
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Duration of remission in patients
with indolent NHL
Years
First course Second Third Fourth course
Treatment No. Treated RR, % Duration, Yrs Survival, Yrs
First 204 88 2.6 9.2
Second 110 78 1.1 4.6
Third 63 76 1.1 3.5
Fourth 37 68 0.5 1.2
Johnson et al. J Clin Oncol. 1995;13:140-147.
No Curative treatment available for advanced stages
Goal of treatment:
effective and durable
disease control (OS-PFS)
with minimal toxiciy and
maintaining qol
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Maintenance “R” in folliculair lymfoom
na tweede respons op CHOP of R-CHOP
Van Oers et al., Blood, 2006
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Considerations for subsequent therapy
• Age
• Comorbidities
• Candidate for transplant ?
• Previous treatment(s)
• Period of previous remission
• Refractory to R-monotherapy or R-chemo
• Tolerance of previous treatments
• Patient’s preference
Fit or unfit?
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But… not all patients respond to R or R-chemo
1st line R-chemo SD and/or progression
R-CVP 20%
R-CHOP < 10%
R-MCP 10%
R-Benda < 10%
>2nd line R-chemo SD and/or progression
R-CHOP 30%
R-FCM 30%
1 st line R SD and/or progression
R (Gela phase 2) 27%
R (Ardeshna) 27%
≈ 25%
≈ 15%
≈ 30%
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And… some relapse or progress during
maintenance
SD and/or progression
R + R maintenance 1st line 20%
R-CHOP + IFNa 20%
EORTC 20981: R/3m/24m 30% at <2.5y
GLSG: R/6m 20% at <15m
≈ 25%
… during upfront and 1th relapse
treatment approximately
70% of patients with iNHL
become refractory to rituximab
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Treatment options for
rituximab refractory iNHL
• Radioimmunotherapy
• Monoclonal antibodies
• Hematopoietic transplantation
• Chemotherapy: bendamustine
• New drugs ??? – Immunomodulatory agents
– B-cell receptor signalling inhibitors
– mTor pathway inhibitors
– Proteasoom inhitors
– Histose deacetylase inhibitors
– Apoptosis inducing agents BH3mimetics
– …
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RIT in R-refractory
iNHL
• 9o Y-ibrutumomab (Zevalin)
• N= 57 (54 FL)
• M age: 54y
• Median number of previous R/: 4 (1-9)
• 76% resistant to last chemo
• All no reponse or relapse <6m to R monotherapy
Witzig et al, JCO 2002, 20:3262-3269
ORR (FL) 74%
CR 15%
TTP 6.8m
TTP for responders 8.7m
90Y
90Y
90Y
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Bendamustine (Levact): active in R-refractory patients
• Relapsed/refractory indolent lymphoma 120 mg/m² d1-2
(n= 52)
– ORR 73%, CR 11%, remission duration 16m
• Relapsed/refractory indolent lymphoma: (n= 76),
Refractory to R (61% FL )
– ORR 77% CR 34%, response duration 9m (indolent)
– Alkylator refractory OR 66%
• R refractory indolent NHL (n=100) ( FL 62%)
– ORR 84% CR 32%, Respons duration 9.3m
Cheson et al., JCO 2009
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Autologeous stem cell transplantation
• Improve disease control with no impact on OS – In RCT’s longer PFS compared to control arm ( chemo,
postremission IFN) but OS not changed
– Outcomes comparable if R before autotransplant
• Low transplant related mortality
• Transplant contamination by lymphoma (in vivo or ex vivo purging give better outcomes)
• 10-20% secondary malignancies ( 10% t-MN)
• Indications for autoTx: ??? – “go go” patients (<70y without comorbidity) at first (???) relapse
– relapse within 24m after an anthracycline containing regimen
• No data on autoTx in R-refractory patients – If relapse <1y after treatment: dismal prognosis, candidate for alloTx
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Allogeneic stem cell transplantation
• The only curative treatment option for iNHL !
• Advantages: – Stem cells free of lymphoma and prior chemotherapy induced DNA damage
• Lower relapse rate
• Lower rate of secondary malignancies
– Graft vs lymphoma effect • Plateau in relapses (20% at 3à 5y postTx)
• Disadvantages: – Requirement of a HLA- matched donor
– TRM >20% (higher if chemo-R disease)
– cGvHD ≈50%
• RIC: better outcome >50y and more comorbidities
• Indications for allo Tx: – No CR to upfront treatment
– Duration of response <2y
– Relapse after autologeous Tx , if bone marrow burden is high and disease is refractory
but… Better outcome if chemosensitive
• No data on allo Tx in R-refractory patients
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Chemo-free treatment
for FL • Monoclonals
– Optimize dose and shedule of rituximab
– Other anti-CD20 monoclonals
– Combine antiCD20 with antiCD22, 80, 74, 37
– Combine with G- or GM-CSF, IL2, IL-12, IFN-a
• Lenalidomide – Combine with rituximab ( more CR, more neutropenia)
– Combine with GA-101 (GALEN phase 1b)
• Target PD1-PDL1: pidilizumab ORR 19/35 with CR 14
• Target CD137 (T), Kir (NK), CD47 (phagocytosis)
• Bcl2-inhibitors
• Kinase inhibitors: – Idelalisib in double Refr FL: ORR 57%, mDOR 12.5 mo
– Ibrutinib R/R FL: ORR 56%, PFS 1y 50%, with R, with BR
Educational session FL EH 2014, G. Salles,
Kinase inhibitors
lenalidomide
Bcl-2 antagonists
Monoclonal antibodies
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0
60
0 2 4 6 8
4-Year
N Death Estimate
CHOP + Mab 179 18 91%
ProMace 425 189 79%
CHOP 356 226 69%
Years After Registration
OS by Treatment
Reprinted with permission. © 2008 American Society of Clinical Oncology.
All rights reserved. Fisher RI, et al. J Clin Oncol. 2005; 23:8447-8452.
1980s
1990s
Overa
ll S
urv
ival
(%)
1990s-2000s
40
20
100
80
10
Improving Survival of Follicular NHL:
Impact of Antibody-Based Therapy
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FOLLICULAR
LYMPHOMA
Easy to treat…
….
difficult to cure