Josefina Cruz
HUC. Tenerife
LIPOSARCOMAS
15%
1. WHO 2013
2. National Comprehensive Cancer Network. NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines): Soft Tissue Sarcoma; Version 1.2015 3. Taylor BS. Advances in sarcoma genomics and new therapeutic targets. Nat Rev Cancer. 2011 Jul 14;11(8):541-5
The most common subtype of LPS is well-differentiated
1,2,3,4Unlike well-differentiated LPS, dedifferentiated LPS is associated with 15–20% risk of distant
metastasis and ~30% 5-year survival rate
1Between 25% to 40% of patients with well-differentiated ADI will ultimately manifest dedifferentiated
histology at recurrence
LPS subtype
Frequency
Progression
Atypical lipomatous/well-differentiated
40–45%
Locally aggressive*
Dedifferentiated
10%
Progressive, high-grade
Myxoid
15–20%
Low- to high-grade
Pleomorphic
5%
High-grade
Histopathologic specimens showing typical
appearance of subtypes of atypical
lipomatous tumor (A1–4), dedifferentiated
(B), spectrum of myxoid (C1–3), and
pleomorphic (D)
LIPOSARCOMAS
4
1. Guan et al 2015
2. WHO 2013 3.4. Banerjee et al 2013;Singer et al 2011.
*References cited indicate that this tumor“shows no potential for metastasis”; however, per team review the tumor“does rarely metastasize”
LIPOSARCOMA BIEN DIFERENCIADO O
LIPOSARCOMA ATIPICO
• 4 subtipos
– Lipoma like
– Escleroso
– Inflamatorio
– Células fusiformes
• Biología molecular
– MDM2 fish + DD con el
lipoma benigno
• Tto: Cirugía amplia
– Rt ocasional
MDM2 FISH +
TTO enfermedad localizada
Cirugía en bloque en retroperitoneo
Tto adyuvante No hay datos
LIPOSARCOMA MIXOIDE
• Aparece con más frecuencia en adultos
jóvenes
• Puede ser multifocal sincrónica y/o
metacrónicamente
• Metastatiza frecuentemente en áreas
extrapulmonares
• Tumor de bajo grado. Se considera de
alto grado si presenta > 5% de células
redondas
o Sarcoma con traslocación
específica 95% presenta t(12;16)
(p13;p11) : FUS-DDIT3
o 5% t(12;22) (q13;q12):
EWSR1-DDIT3
• Tto: cirugía amplia
• Bajo grado RT puede reducir
volumen
• Alto grado papel quimioterapia
sistémica
TRATAMIENTO EN ENFERMEDAD
CIRUGIA : TTO PRINCIPAL
Retroperitoneo:
• Liposarcoma bien
diferenciado
• Liposarcoma
desdiferenciado
• Liposarcoma pleomórfico
Extremidades y tronco
• Liposarcoma mixoide
• Liposarcoma
desdiferenciado con areas
de alto grado
• Liposarcoma pleomórfico
• Liposarcoma bien
diferenciado
QUIMIOTERAPIA
ADYUVANTE Y/O
RADIOTERAPIA EN
INVESTIGACIÓN…
GRADO III, PROFUNDOS,
> 5 CM: RT
+/-QUIMIOTERAPIA NEO /
ADYUVANTE?
Estudios GEIS
• TRASTS fase 2
– 2 cohortes
• Liposarcoma mixoide localizado > 5 cm profundo
– RT + trabectedina x 3 ciclos a dosis 1.5 mg/m2
– Cirugía posterior
MOTIVO DE CONSULTA:
Mujer de 31 años, gestante de 24 semanas, acude a consultas de OM por
tumoración en región posterior de muslo izquierdo.
ECOGRAFÍA 5.2.15: masa en compartimento muscular posterolateral externo de
muslo izqdo
de 7’8 x 7’1 x 18’7 cm. Predominio sólido, mínimas áreas quísticas y
moderada vascularización arterial y venosa. Impresiona de lesión sarcomatosa.
•
RMN 16.2.15: Gran tumoración de partes blandas, polilobulada, bordes
bien delimitados y con cápsula periférica, de 17 cm, con captación intensa y
heterogénea del contraste, más prominente en región inferoposterior,
AP 18.02.15 (TRUCUT) : LIPOSARCOMA MIXOIDE: Grado: 2 (OMS)
; Ki67: 1-2%, positividad débil y focal para S-100.
CITOGENÉTICA 18.2.15: se observa reordenamiento del gen CHOP (12q13)
Evaluación resultados en Comité: se acuerda biopsia de la zona inferior (captación más intensa de contraste, posible zona de alto grado)
AP 24.2.15 (TRUCUT): LIPOSARCOMA MIXOIDE CON ZONAS DE
TRANSICIÓN A CÉLULAS REDONDAS. Grado: 2 (OMS); P53 -, Ki67: 10% . Reordenamiento del gen CHOP.
TTO
• Esquema: Trabectedina infusión 24 horas seguida de RT 1h tras infusión durante, 45 Gy, 25 fracciones. Trabectedina c/3 semanas, 3 ciclos. Dosis máxima 2.6mg/ciclo.
– 3ª Paciente incluida dentro del Fase I a dosis de 1’3mg/m2
• Disminución significativa de tamaño: pasa de 17 a 13 cm e incremento de la difusión.
Cirugía:
26/jun/2015 resección en bloque en cara
posterior de muslo izdo
AP:liposarcoma mixoide de 9 x 3.7 x 3 cm .
Componente tumoral a 0.1mm de la superficie.
Porcentaje de tumor viable 5%
TRATAMIENTO SISTEMICO DE LOS
LIPOSARCOMAS AVANZADOS
Página 30
Siglo XXI en el tto de sarcoma:
Drogas seleccionadas para
subtipos seleccionados
2000
Todos los sarcomas
Doxorubicina
Ifosfamida
DTIC
2018
◼
Trabectedina
, Gem/Tax
◼
GIST:
Imatinib, sunitinib
,
regorafenib,
masitinib?
◼
LPS:
Dox, Trabectedina
(MRCL++ )
ERIBULINA
◼
LMS:
Dox, Trabectedina
GemTax
◼
EWS:
A,I,C,V,Ac
, Topo I inh., IGF1R
◼
A/E RMS: Topo I inhibidores
◼
ESS : Inhibidores Aromatasa
◼
Todos?: mTOR
◼
Todos menos LPS: VEGFR TKI
Pazopanib
◼
Angio: Dox, Paclitaxel, GemTax
◼
DFSP:
Imatinib
◼
PVNS: Sorafenib
◼
Tumores Desmoides: Imatinib
DIFERENCIAS POR
SUBTIPOS???
PRIMERA LINEA
ADRIAMICINA
ADRIAMICINA –OLARATUMAB
aDuring Cycles 5-8, patients receiving doxorubicin could receive dexrazoxane, at the investigator’s discretion
Primary endpoint: Progression-free survival (PFS) (predefined statistical significance: 2-sided alpha=0.2)
Secondary endpoints: Overall survival (OS), objective response rate, PFS, safety and pharmacokinetics
Biomarker: PDGFR
α (IHC) and related ligands
R A N D O M I Z E
Olaratumab
monotherapy until
progression
Olaratumab 15 mg/kg D1,8
+
Doxorubicin 75 mg/m
2D1
8 cycles (21 days)
aOptional
olaratumab
monotherapy after
progression
Doxorubicin 75 mg/m
2D1
8 cycles (21 days)
• Same entry criteria as Phase 1b
• Stratification:
• PDGFRα (IHC)
• Lines of prior treatment
• ECOG PS
• Histology (leiomyosarcoma,
synovial sarcoma, other)
Phase 2 (N=133)
An Open-label, Multicenter, Phase 1b/2 Trial –
Study Design for Phase 2 Portion
© 2016 Eli Lilly and Company
Histological Type
(1 of 2)
aThe following 8 subtypes were prespecified in the original study case report form: angiosarcoma, fibrosarcoma, leiomyosarcoma, liposarcoma,
neurofibrosarcoma, malignant fibrous histiocytoma (MFH), synovial sarcoma, and other. MFH was subsequently included into the undifferentiated pleomorphic sarcoma category to align with the most recent WHO soft tissue sarcoma classification
bOther subtypes were entered into the case report form as free text fields; therefore, some histologies were consolidated Tap WD et al. Lancet 2016;388:488-97
© 2016 Eli Lilly and Company
Histological type,
an (%)
Olara + Dox
(N=66)
Dox
(N=67)
Leiomyosarcoma
24 (36)
27 (40)
Undifferentiated pleomorphic sarcoma
10 (15)
14 (21)
Liposarcoma
8 (12)
15 (22)
Angiosarcoma
4 (6)
3 (5)
Synovial sarcoma
1 (2)
2 (3)
Neurofibrosarcoma
1 (2)
0
Fibrosarcoma
1 (2)
0
Other
b17 (26)
6 (9)
INVESTIGATOR
assessment Olara + Dox Dox
Patients/Events 66/55 67/48 Median, months (95% CI) 6.6 (4.1, 8.3) 4.1 (2.8, 5.4) HR (95% CI) 0.67 (0.44, 1.02) Stratified p-value .0615 Number at Risk Dox Olara + Dox 66 50 39 29 21 38 13 67 28 7 11 3 15 6 3 7 2 7 4 1 2 2 1 1 1 0 1 0 1 0 0 0 INDEPENDENT
assessmenta Olara + Dox Dox
Patients/Events 66/37 67/34 Median, months (95% CI) 8.2 (5.5, 9.8) 4.4 (3.1, 7.4) HR (95% CI) 0.67 (0.40, 1.12) Stratified p-value .1208
Progression-free Survival for Olaratumab + Doxorubicin vs.
Doxorubicin Alone (ITT Population)
Tap WD et al. Lancet 2016;388:488-97
© 2016 Eli Lilly and Company
Olara + Dox Dox
Number at Risk 62 57 66 60 52 61 46 67 51 43 50 43 51 47 41 34 28 37 32 23 39 41 19 21 33 19 29 13 32 15 26 13 16 10 16 7 15 6 8 6 3 5 3 3 1 2 1 1 0 0 INVESTIGATOR
assessment Olara + Dox Dox
Patients/Events 66/39 67/52 Median, months (95% CI) 26.5 (20.9, 31.7) 14.7 (9.2, 17.1) HR (95% CI) 0.46 (0.30, 0.71) Stratified p-value .0003
Overall Survival for Olaratumab + Doxorubicin
versus Doxorubicin Alone (ITT Population)
Tap WD et al. Lancet 2016;388:488-97
© 2016 Eli Lilly and Company
Dox
Olara + Dox
Olara + Dox Dox
SEGUNDA LINEA
TRABECTEDINA
PAZOPANIB
ERIBULINA
TRABECTEDINA
• TODOS L SARCOMAS
• PRINCIPALMENTE ACTIVIDAD EL
LIPOSARCOMA MIXOIDE
• ENSAYOS EN MARCHA POR HISTIOTIPO
MIXOIDE LOCALIZADO
– GEIS 25
– TRAST
PAZOPANIB
• Desechado tras el fase 3
• Geis 30 2 cohortes:
– A lipo bien dif/desdif
– B lipo mixoides
ERIBULINA
• Aprobado tras fallo a antraciclinas en
liposarcomas exclusivamente!!
Study 309: Study Design and
Objectives
Primary endpoint
•Overall survival (OS)
Selected secondary endpoints
•Progression-free survival (PFS) •Progression-free rate at 12 weeks (PFR12wks)†
•Safety & tolerability (AE
assessments based on CTCAE 4.022)
•Selected exploratory endpoints •Objective response rate (ORR; CR or PR)
•Health-related quality of life
Dacarbazine*
850, 1000, or 1200 mg/m2IV
Day 1 every 21 days
n=224
Eribulin
1.23 mg/m2 IVDays 1 and 8 every 21 days
n=228
1:1
*Dacarbazine starting dose selected by the local investigator at study initiation; †PFR12wks, proportion of patients who were
still alive without disease progression at 12 weeks from randomization.
CR, complete response; CTCAE, Common Terminology Criteria for Adverse Events; IV, intravenous; OS, overall survival; PR, partial response; RECIST, Response Evaluation Criteria in Solid Tumors.
Select eligibility criteria •LMS or ADI of high or intermediate grade •≥2 prior regimens for advanced disease •Measurable disease (RECIST v1.1)1
R
A
N
D
O
M
I
Z
E
Schöffski P, et al. Presented at ASCO 2015 Annual Meeting, Chicago IL, June 3-7, 2015:abstr LBA10502 Schöffski P, et al. Lancet. 2016 Apr 16;387(10028):1629-37
N=452
Stratification
• Geographical Region • Histology
Study 309: Key Patient Characteristics
Category
Subgroup
Eribulin (n=228)
n (%)
Dacarbazine (n=224)
n (%)
Histology
ADI
LMS
Other
75 (32.9)
152 (66.7)
1 (0.4)
78 (34.8)
145 (64.7)
1 (0.4)
ADI histological subtype
Dedifferentiated
Myxoid/round cell
Pleomorphic
32 (14.0)
30 (13.2)
13 (5.7)
37 (16.5)
26 (11.6)
15 (6.7)
LMS primary site
Uterine
Nonuterine
67 (29.4)
85 (37.3)
62 (27.7)
83 (37.1)
Tumor grade
High
Intermediate
Not done
150 (65.8)
77 (33.8)
1 (0.4)
152 (67.9)
69 (30.8)
3 (1.3)
Number of prior
regimens for advanced
disease
0
1
2
>2
1 (0.4)
15 (6.6)
116 (50.9)
96 (42.1)
1 (0.4)
14 (6.3)
98 (43.8)
111 (49.6)
1. Schöffski P, et al. Presented at ASCO 2015 Annual Meeting, Chicago IL, June 3-7, 2015:abstr LBA10502 2. Schöffski P, et al. Lancet. 2016 Apr 16;387(10028):1629-37
Eribulin Dacarbazine
Median (months) 2.9 1.7
HR (95% CI) 0.52 (0.346–0.784) P-value 0.0015
CI, confidence interval; HR, hazard ratio.
Chawla SP, et al. Presented at CTOS 2015 Annual Meeting, Salt Lake City, UT, November 4-7, 2015
1.2 month improvement in median OS with eribulin
Study 309 (LPS): Liposarcoma Overall Survival
In Liposarcoma population,
7.2 month improvement in median OS with eribulin
Chawla SP, et al. Presented at CTOS 2015 Annual Meeting, Salt Lake City, UT, November 4-7, 2015
Eribulin Dacarbazine
Median (months) 15.6 8.4
HR (95% CI) 0.511 (0.346–0.753) P-value 0.0006
CI, confidence interval; HR, hazard ratio.
Study 309 (LPS): OS by Liposarcoma
Histology
*For the Myxoid/round cell subtype, unity is included in the CI.