Comparing the ability of various compositive outcomes to discriminate treatment effects in MS clinical trials

Autor: Frederick Munschauer, J. S. Fischer, Michele Mass, Diane Cookfair, John R. Richert, Ruth H. Whitham, Dennis Bourdette, Michael E. Coats, M. Campion, Barbara J. Scherokman, Carol M. Brownscheidle, Carl V. Granger, R. P. Kinkel, Donald E. Goodkin, Robert M. Herndon, Roger L. Priore, Lawrence Jacobs, Bianca Weinstock-Guttman, John J. Alam, RA Rudick, David S. Dougherty, Stanley Cohan, Andres M. Salazar, K. E. Wende, David M. Bartoszak, Patrick M. Pullicino, Jack H. Simon, J. Braiman
Rok vydání: 1998
Předmět:
Zdroj: Multiple Sclerosis. 4:480-486
ISSN: 1477-0970
1352-4585
Popis: We compared the ability of the Kurtzke Expanded Disability Status Scale (EDSS) and a composite outcome of non-physician-based measures of time to ambulate 25 feet (TA) and manual dexterity (the Box and Block Test [BBT], and 9-Hole Peg Test [9HPT]) to discriminate treatment effects in the Phase III study of interferon beta-1a. A log-rank comparison of Kaplan-Meier curves by treatment group showed the non-physicianbased composite of BBT, 9HPT, and TA was of comparable sensitivity (P=0.013) in discriminating sustained treatment failure as the EDSS alone (P=0.029). The composite of BBT, 9HPT, TA, and EDSS was more sensitive (P=0.009) in discriminating sustained treatment failure than the EDSS alone. Compositive outcomes of the EDSS and non-physician-based measures of manual dexterity and timed ambulation provide an appealing strategy to reduce the number of patients required to discriminate treatment effects in MS clinical trials.
Databáze: OpenAIRE