Wong_2006

Supportive Therapie · Version 2.1

Referenz

(Autor, Jahr, Journal)

Studientyp

Mono- vs. Multizentrisch, Verblindung, Randomisierung, Arme, Fallzahl n, Land, Zeitraum

 

Patienten-merkmale

Indikation, Alter, Geschlecht (m/w)

Intervention

Fallzahl n, Beschreibung der präventiven bzw. therapeutischen Maßnahme

Kontrolle

Fallzahl n, Beschreibung der präventiven Maßnahme bzw. therapeutischen Maßnahme

Zielgrößen

Primärer Endpunkt

Sekundäre(r) Endpunkt(e)

Primärer Endpunkt

Angaben für Intervention vs. Kontrolle

Sekundäre(r) Endpunkt(e)

Angaben für Intervention vs. Kontrolle

Finanzierung

Evidenzstufe

Bei Abwertung: Angabe von Gründen

Bewertung des Autors

Wong

 

2006

 

J Clin Oncol

multicenter, placebo-controlled, double-blind, randomized trial

 

n = 211

 

Canada

 

05/2001 – 01/2004

radiotherapy field: whole abdomen and pelvis, partial abdomen and pelvis, and partial abdomen

 

Ondansetron + Dexamethasone (days 1-5)

N = 101

Median age, years: 50.7y

Male: Female: 58:43

 

 

Ondansetron + Placebo (days 1-5)

N = 103

Median age, years: 51.2

Male: Female: 59:44

ondansetron 8 mg p.o. 2x/d (fractions 1 to 5)

 

+

 

dexamethasone 4 mg 1/d (fractions 1 to 5)

 

rescue pack: prochloperazine 10 mg tid orally (fractions 1 to 5) and ondansetron 8 mg tid

(fractions 6 to 15)

 

 

 

 

ondansetron 8 mg p.o. 2x/d (fractions 1 to 5)

 

+

 

Placebo

 

 

 

 

rescue pack: prochloperazine 10 mg tid orally (fractions 1 to 5) and ondansetron 8 mg tid

(fractions 6 to 15)

 

primary endpoint:

Complete control of nausea

 

Complete control of vomiting

 

complete control of nausea and complete control of vomiting during fractions 1 to 5

 

 

secondary endpoints:

complete control of nausea and complete control of vomiting during fractions 1 to 15

average nausea

score

use of rescue medications

toxicities

QOL

Ondansetron + Dexamethasone (days 1-5) vs. Ondansetron + Placebo (days 1-5)

 

Complete control of emesis: 79/101, 78% (95% CI 71-86) vs. 73/102, 71% (95% CI 63-80); p=0.14

Partial control of emesis or better 92/101, 91% (95% CI 85-97) vs. 88/102, 86% (95% CI 80-93); p=0.13

Complete control of nausea: 50/101, 50% (95% CI 40-59) vs. 39/102, 38% (95% CI 29-48); p=0.06

no use of rescue medications (prochloperazine): 91/101, 90% vs. 88/103 85% ; p=0.2

Ondansetron + Dexamethasone (days 1-15) vs. Ondansetron + Placebo (days 1-15)

 

 

complete protection against emesis: 23% vs. 12%; P=0.02

average nausea score: 0.28 vs. 0.39; P= 0.03

less use of rescue medications: 71% vs. 82%; P=0.09

partial or better control of emesis: 70% vs. 65%; P=0.19

complete control of nausea: 15% vs. 9%; P=0.14

 

 

fractions 5 to 15

appetite (P=0.005)

global QOL (P=0.08)

nausea and vomiting (P=0.06)

effect on sleep (P=0.013)

constipation (P=0.07)

Joseph Pater

Research Funds

GlaxoSmithKline (C)

≥ $100,000

1b

funded by pharmaceutical industry
primary endpoint: no sign. benefit

 

"The addition of dexamethasone to ondansetron as prophylaxis provides a modest improvement in protection against RIE during moderately emetogenic fractionated radiotherapy. It is a potentially useful addition to 5-hydroxytryptamine-3 receptor antagonists in this setting."