Prevention of chemotherapy-induced FN by AB +/- G-CSF in SCLC: a randomized phase III study

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J. Timmer-Bonte, B. Biesma, J. Smit, F. Wilschut, J. Akkermans, T. de Boo, G. Bootsma, V. Tjan-Heijnen. Prevention of chemotherapy-induced FN by AB +/- G-CSF in SCLC: a randomized phase III study. Invloed van micrometastasen op “adjuvante behandeling” bij het mammacarcinoom. - PowerPoint PPT Presentation

Transcript of Prevention of chemotherapy-induced FN by AB +/- G-CSF in SCLC: a randomized phase III study

Page 1: Prevention of chemotherapy-induced FN by AB +/- G-CSF in SCLC: a randomized phase III study

J. Timmer-Bonte, B. Biesma, J. Smit, F. Wilschut, J. Akkermans, T. de Boo, G. Bootsma, V. Tjan-Heijnen

• Prevention of chemotherapy-induced FN by AB +/- G-CSF in SCLC: a randomized phase III study

Page 2: Prevention of chemotherapy-induced FN by AB +/- G-CSF in SCLC: a randomized phase III study

Invloed van micrometastasen op “adjuvante behandeling” bij het mammacarcinoom

Dr. Vivianne Tjan-Heijneninternist-oncoloog

UMC St Radboud, Nijmegen

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Micrometastase

•De definitie

•PA protocol

•Prognostisch van belang ?

•Adjuvante systeemtherapie

•Aanvullende okselklierdissectie (OKD)

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Micrometastase: de oude situatie

•Zelden (IKO): 5%

•Definitie:

•was pN1a: < 2.0 mm

•maar in PA-verslag vaak alleen pN1

•dús synoniem voor N+

•dús indicatie voor adjuvante therapie

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Echter, toen …. kwam de schildwachtklierprocedure

•OKD: H&E van 1 of 2 coupes

•SWK: tenminste 3 levels

H&E en IHC

Veranderd PA protocol

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‘Positieve’ schildwachtklier

•Een enkele losse cel

•Groepje cellen in sinus

•Groepje cellen in parenchym

•Vele groepjes cellen in

parenchym

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Behoefte aan een

betere definitie +

goede afspraken

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Definitie

TNM

•H&E versus IHC

•Histologisch kenmerken:

•Proliferatie

•Invasie in parenchym

•Stroma reactie

•Grootte van metastase

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TNM classificatie

Macro-metastase pN1abc/3abc > 2.0 mm

Micro-metastase pN1mi > 0.2 - < 2.0 mm

Geisoleerde tumorcel pN0(i+) < 0.2 mm

Geen pN0(i-)

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Term micrometastase is misleidend

Grootte metastase:

> 0.2- < 2.0 mm

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Take Home Message

Gebruik de juiste TNM definitie:

1.In de PA verslaglegging

2.Voor verdere behandeling

3.Voor interpretatie literatuur

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Take Home Message

Ken het protocol op basis waarvan de patholoog

in uw ziekenhuis de SWK beoordeeld:

Aantal niveau’s +/- IHC

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Detectiekans micrometastasen

Metastasis size

0

0,2

0,4

0,6

0,8

1

2 4 6 8 10 12

Number of sections in 2-mm block

pro

ba

bil

ity

of

de

tect

ion 0.5 mm

0.2 mm

LOE

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Is een geïsoleerde tumorcel of

micrometastase in de okselklieren

een indicatie voor aanvullende

systeemtherapie?

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CBO Richtlijn Behandeling Mammacarcinoom 2002 / 2004

“Indien in de okselklieren een

micrometastase aanwezig is, wordt

dit voor de prognose beschouwd als

een N0 situatie”

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St Gallen Richtlijn Behandeling Mammacarcinoom 2003

“The new AJCC classification includes

patients with isolated tumor cells in lymph

nodes as having node-negative status. This

may lead to uncertainty about the proper

risk category for such patients.”

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Dilemma in NederlandClassificatie van micrometastase als pN1, maar behandelen als pN0

Dilemma St Gallen Classificatie van geïsoleerde tumorcel als

pN0, maar onzekerheid over het prognostisch risico

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Prognose ‘occulte’ metastasen vs ‘echt’ pN0

Author Method Number H&E N0

Occult (%)

10 jrs DFS, (%)

P *

Friedman SS 456 9 RR 0.59 0.05

Wilkinson SS 525 17 65 vs 71 NS

Hainsworth IHC 343 12 54 vs 84 NS

Trojani IHC 150 14 80 vs 90 NS

Nasser SS + IHC 159 31 51 vs 68 < 0.05

McGuckin SS + IHC 208 25 65 vs 85 NS

Bettelheim* SS 921 9 58 vs 74 0.003

Cote* IHC 736 20 55 vs 63 NS

Tjan-Heijnen et al.

Breast Cancer Res and Treat 2001

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Prognose geïsoleerde cellen micrometastasen

•Cote, 10 jrs DFS:

•IHC 0 cellen: 63%

•IHC 1-100 cellen: 57%

•IHC > 100 cellen: 40% ( > 0.2

mm )

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Prognose geïsoleerde cellen micrometastasen:

Mc Guckin,Br J Cancer 1995

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Take Home Message

Micrometastasen: prognostisch ongunstig,

geïsoleerde tumorcellen mogelijk niet

Niveau 3

pN1 versus pN0

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Take Home Message

Maar…

Onduidelijk of primaire tumorkenmerken

corrigeren voor slechtere prognose bij

aanwezigheid van micrometastasen

Eerlijk is eerlijk

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Regionale ervaring met de SWK procedure

N = 556

CBO 2004:

pN-stadium (SWK + OKD)

pN0(i-)

63%

pN0(i+)

8%

pN1mi

9%

pN1a-c *

20%

Gunstig 69% 62% 56% 38%

Ongunstig 31% * 38% 44% 62%

* Prognostisch onafhankelijke factor

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10.000 patiënten met SWK biopt

2000 pN0(i+) of pN1mi

1.000 pN0(i+) of pN1mi èn ongunstige kenmerken

1.000 pN0(i+) of pN1mi èn gunstige kenmerken

6.000 pN0(i-)

Jaarlijks in NL

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MIRROR-studie (BOOG/ZonMw)

Micro-metastases and

Isolated tumour cells:

Relevant and Robust

or Rubish?

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MIRROR studie

N= 3000 patiënten

met gunstige kenmerken

met SWK in 2002 of eerder

Cohort I

pN0(i-)

Geen systeemtherapie

Cohort II

pN0(i+) of pN1mi

Geen systeemtherapie

Cohort III

pN0(i+) of pN1mi

Wel systeemtherapie

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Regionale ervaring met de SWK procedureWel / geen aanvullende OKD ?

N=556 pt pN0(i+)(sn) pN1mi(sn) pN1a-c (sn)

Positieve

non-SN14.9% 29.2% 36.6%

LOE

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Conclusies

•De definitie: TNM classificatie

•PA protocol: tenminste 3 levels, liever méér, + IHC

•Prognostisch: micrometastasen mogelijk ongunstig

•Adjuvante systeemtherapie: ja, ook bij micrometastase

•Aanvullende OKD: ja, indien SWK tumorcel +

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