Generating Cmax at end of infusion

From: Paul Hutson Date: April 06, 2010 technical Source: mail-archive.com
Title: Paul R G'day. I would like to generate a concentration at the end of an infusion of duration DUR. I am using ADVAN3 TRANS4 with log transformed data. Here is what I have tried, but I am getting an error that the parameter 'T' that I understood to be the machine time is undefined. Can anyone suggest a proper way to give set Cmax=exp(Y) at the end of the infusion of length DUR? Many thanks in advance. Paul $PK ... TT=TIME $ERROR ;I've also tried ;TT=TIME ;TT=T IPRE=F EDV=EXP(DV) W=1 IF(F.GT.0) W=F IRES=F-EDV IWRE=IRES/W LOGF=LOG(0.0001) IF (F.GT.0) LOGF=LOG(F) Y=LOGF+EPS(1) ;GENERATE CMAX AT END OF INFUSION (DUR) IF(DUR.EQ.TT) CMAX=EXP(Y) -- Paul R. Hutson, Pharm.D. Associate Professor UW School of Pharmacy 777 Highland Avenue Madison WI 53705-2222 Tel 608.263.2496 Fax 608.265.5421 Pager 608.265.7000, p7856
Apr 06, 2010 Paul Hutson Generating Cmax at end of infusion
Apr 06, 2010 Leonid Gibiansky Re: Generating Cmax at end of infusion
Apr 06, 2010 Bill Denney RE: Generating Cmax at end of infusion
Apr 06, 2010 Steve Olson RE: Generating Cmax at end of infusion
Apr 06, 2010 Nick Holford Re: Generating Cmax at end of infusion
Apr 06, 2010 Doug J. Eleveld RE: Generating Cmax at end of infusion
Apr 07, 2010 Jeroen Elassaiss-Schaap RE: Generating Cmax at end of infusion
Apr 07, 2010 Jeroen Elassaiss-Schaap RE: Generating Cmax at end of infusion
Apr 07, 2010 Leonid Gibiansky Re: Generating Cmax at end of infusion