Publication
Title
Progression-free survival rate as primary end point for phase II cancer clinical trials : application to mesothelioma, the EORTC Lung Cancer Group
Author
Abstract
Purpose Phase II cancer clinical trials play a key role in the development of new drugs. These trials should be designed to accurately determine if the drug should be abandoned or if it is sufficiently promising for further investigation in phase III trials. With new cytostatic agents or when the response assessment is difficult, using the progression-free survival rate (PFSR) at a fixed time point, such as 3, 4, 5, or 6 months, instead of the response rate (RR) as the primary end point is reference values for PFSRs that an alternative approach. To design future phase II trials, correspond to drugs with insufficient (P0) and sufficient (P1) clinical activity (CA) are necessary. This article provides these values in mesothelioma. Materials and Methods The European Organisation for Research and Treatment of Cancer database registered ten closed mesothelioma trials (nine phase II trials and one phase III trial) with 523 total patients. Trials were grouped into three categories according to the published RR: significant (n = 259), moderate (n = 142), and insufficient (n = 122) CA. Results The PFSRs at 3, 4, 5, and 6 months, respectively, were as follows: 72%, 67%, 51 %, and 43% in the group with significant CA; 59%, 51 %, 42%, and 35% with moderate CA; and 52%, 40%, 34%, and 28% with insufficient CA. Conclusion These values may be used to define relevant P0 and P1 values in future phase II mesothelionna trials that use PFSR as the primary end point.
Language
English
Source (journal)
Journal of clinical oncology. - New York
Publication
New York : 2006
ISSN
0732-183X
DOI
10.1200/JCO.2005.05.1359
Volume/pages
24 :19 (2006) , p. 3007-3012
ISI
000238987200008
Full text (Publisher's DOI)
UAntwerpen
Faculty/Department
Publication type
Subject
External links
Web of Science
Record
Identifier
Creation 18.11.2014
Last edited 06.02.2023
To cite this reference