INTRODUCTION multc97 is a menu-driven program which provides all necessary computations for implementing the design strategy for monitoring multiple outcomes in clinical trials described in the following three papers. Thall, Peter F., Simon, R. and Estey, E.H. "Bayesian sequential monitoring designs for single-arm clinical trials with multiple outcomes," Statistics in Medicine 14:357-379, 1995. Thall, Peter F., Simon, R. and Estey, E.H. "New statistical strategy for monitoring safety and efficacy in single-arm clinical trials," J. Clinical Oncology 14:296-303, 1996. Thall, Peter F. and Sung, Hsi-Guang, "Some Extensions and Applications of a Bayesian Strategy for Monitoring Multiple Outcomes in Clinical Trials," (submitted for publication). HOW IT WAS WRITTEN multc97 was written in ANSI C, compiled by GNU C compiler gcc. All the examples in the paper (*) were run on a DEC Alpha machine. LEGALITIES (BRIEF) We want to make this program as widely available as possible. Hence, executable code derived from the source provided, the source itself, and the accompanying documentation may be freely copied and distributed provided that this copyright section accompanies such copies. We encourage the distribution of this code on bulletin boards and as shareware. Modifications and improvements to the code can similarly be freely copied and distributed. Peter F. Thall and Hsi-Guang Sung would appreciate a copy of any such improvements for incorporation into later versions of multc97. Source code may be extracted and used for any non-commercial purpose. Non-commercial means that at most a modest distribution fee is charged, as shareware. We would appreciate acknowledgment of such use of our code. Commercial use of the source code requires written permission from the Department of Biomathematics at the above address. Our policy is generally to grant such permission provided appropriate credit is given to us in the documentation. INSTALLATION For step-by-step instructions, please see the file 'INSTALL'. Sample sessions and tutorials can be found in file 'Examples'. OBTAINING SOURCE AND OTHER VERSIONS The C source code is available via anonymous ftp from odin.mdacc.tmc.edu (129.106.1.6) in the subdirectory /pub/source. The current version is for UNIX. MS-DOS PC and MacIntosh executables will be available in the near future. CONTACTING THE AUTHORS To contact the authors of multc97 or report any bugs, please write to: Peter F. Thall Department of Biomathematics, Box 237 University of Texas M. D. Anderson Cancer Center 1515 Holcombe Boulevard Houston, TX 77030 or send electronic mail to: rex@odin.mdacc.tmc.edu