🩺 IV Infusion Single Dose

For IV infusion administration of a single dose, the following parameters are calculated as described.

Parameters that do not depend on a terminal slope

Parameter name	Parameter code in output	Description of calculation
AUC all linear	AUC_all_lin	Sum of partial AUC values for all time points using the linear method
AUC all linear/Dose	AUC_all_lin_D	$\frac{AUC\mathrm{\_}all\mathrm{\_}lin}{Dose}$
AUC all linlog	AUC_all_log	Sum of partial AUC values for all time points using the linear up log down method
AUC all linlog/Dose	AUC_all_log_D	$\frac{AUC\mathrm{\_}all\mathrm{\_}log}{Dose}$
AUC last linear	AUC_last_lin	Sum of partial AUC values from time of dose administration through Tlast using the linear method
AUC last linear/Dose	AUC_last_lin_D	$\frac{AUC\mathrm{\_}last\mathrm{\_}lin}{Dose}$
AUC last linlog	AUC_last_log	Sum of partial AUC values from time of dose administration through Tlast using the linear up log down method
AUC last linlog/Dose	AUC_last_log_D	$\frac{AUC\mathrm{\_}last\mathrm{\_}log}{Dose}$
AUMC all linear	AUMC_all_lin	Sum of partial AUMC values for all time points using the linear methd
AUMC all linlog	AUMC_all_log	Sum of partial AUMC values for all time points using the linear up log down methd
AUMC last linear	AUMC_last_lin	Sum of partial AUMC values from time of dose administration through Tlast using the linear methd
AUMC last linlog	AUMC_last_log	Sum of partial AUMC values from time of dose administration through Tlast using the linear up log down methd
Last measurable concentration	Clast	Analyzed concentration value greater than zero with the largest associated time value.
Maximum concentration	Cmax	Maximum concentration value in the analyzed concentration column.
Cmax/Dose	Cmax_D	$\frac{Cmax}{Dose}$
Dose	Dose	Dose amount
Time of Dose	Dose_time	Time of dose administration
Duration of infusion	Inf_dur	Duration of infusion
End of infusion	Inf_end	End of infusion
Infusion rate	Inf_rate	Infusion rate
Start of infusion	Inf_start	Start of infusion
Number of BLQ samples	N_blq	Total number of observed concentrations reported as "BLQ"
Number of missing samples	N_miss	Total number of observed concentrations reported as "Missing"
Number of samples	N_samp	Total number of records in the observed concentration column. Observations that are below the limit of quantitation (BLQ) are counted, but missing observations are not counted.
Time of Clast	Tlast	Value in the time column the corresponds to Clast.
Time of Cmax	Tmax	Value in time column that corresponds to the maximum concentration. If there are two identical values at the maximum concentration, the earliest time is reported.

Parameters that depend on a terminal slope

Parameter name	Parameter code in output	Description of calculation
AUC infinity linear	AUC_inf_lin	$AUC\mathrm{\_}last\mathrm{\_}lin+\frac{Clast}{kel}$
AUC infinity linear/Dose	AUC_inf_lin_D	$\frac{AUC\mathrm{\_}inf\mathrm{\_}lin}{Dose}$
Percent extrapolated AUC infinity linear	AUC_inf_lin_extrap	$100\ast [\frac{AUC\mathrm{\_}inf\mathrm{\_}lin-AUC\mathrm{\_}last\mathrm{\_}lin}{AUC\mathrm{\_}inf\mathrm{\_}lin}]$
AUC infinity linlog	AUC_inf_log	$AUC\mathrm{\_}last\mathrm{\_}log+\frac{Clast}{kel}$
AUC infinity linlog/Dose	AUCINFLOG_D	$\frac{AUC\mathrm{\_}inf\mathrm{\_}log}{Dose}$
Percent extrapolated AUC infinity linlog	AUC_inf_log_extrap	$100\ast [\frac{AUC\mathrm{\_}inf\mathrm{\_}log-AUC\mathrm{\_}last\mathrm{\_}log}{AUC\mathrm{\_}inf\mathrm{\_}log}]$
AUMC infinity linear	AUMC_inf_lin	$AUMC\mathrm{\_}last\mathrm{\_}lin+\frac{Clast\ast Tlast}{kel}+\frac{Clast}{ke{l}^2}$
Percent extrapolated AUMC infinity linear	AUMC_inf_lin_extrap	$100\ast [\frac{AUMC\mathrm{\_}inf\mathrm{\_}lin-AUMC\mathrm{\_}last\mathrm{\_}lin}{AUMC\mathrm{\_}inf\mathrm{\_}lin}]$
AUMC infinity linlog	AUMC_inf_log	$AUMC\mathrm{\_}last\mathrm{\_}log+\frac{Clast\ast Tlast}{kel}+\frac{Clast}{ke{l}^2}$
Percent extrapolated AUMC infinity linlog	AUMC_inf_log_extrap	$100\ast [\frac{AUMC\mathrm{\_}inf\mathrm{\_}log-AUMC\mathrm{\_}last\mathrm{\_}log}{AUMC\mathrm{\_}inf\mathrm{\_}log}]$
CL linear	CL_lin	$\frac{Dose}{AUC\mathrm{\_}inf\mathrm{\_}lin}$
CL linlog	CL_log	$\frac{Dose}{AUC\mathrm{\_}inf\mathrm{\_}log}$
MRT last linear	MRT_last_lin	$\frac{AUMC\mathrm{\_}last\mathrm{\_}lin}{AUC\mathrm{\_}last\mathrm{\_}lin}$
MRT last linlog	MRT_last_log	$\frac{AUMC\mathrm{\_}last\mathrm{\_}log}{AUC\mathrm{\_}last\mathrm{\_}log}$
MRT linear	MRT_lin	$\frac{AUMC\mathrm{\_}inf\mathrm{\_}lin}{AUC\mathrm{\_}inf\mathrm{\_}lin}$
MRT linlog	MRT_log	$\frac{AUMC\mathrm{\_}inf\mathrm{\_}log}{AUC\mathrm{\_}inf\mathrm{\_}log}$
Vss linear	Vss_lin	$MRT\mathrm{\_}lin\ast CL\mathrm{\_}lin$
Vss linlog	Vss_log	$MRT\mathrm{\_}log\ast CL\mathrm{\_}log$
Vz linear	Vz_lin	$\frac{Dose}{kel\ast AUC\mathrm{\_}inf\mathrm{\_}lin}$
Vz linlog	Vz_log	$\frac{Dose}{kel\ast AUC\mathrm{\_}inf\mathrm{\_}log}$
Terminal slope group	group	Group number for each estimated terminal slope. For each profile at least one terminal slope is calculated. All parameters that are dependent on estimation of the terminal slope are also calcualted and given the same group number.
Terminal slope intercept	intercept	Intercept of linear regression.
Terminal slope	kel	Negative of estimated slope by linear regression of the natural log-transformed analyzed concentrations and the time of each observation.
Terminal slope adjusted r-squared	kel_adjr2	$1-(1-kel\mathrm{\_}r2)\ast [\frac{kel\mathrm{\_}n-1}{kel\mathrm{\_}n-2}]$
Terminal slope lower time point	kel_low	Smallest time value used to calculate the terminal slope.
Number of data points in terminal slope calculation	kel_n	Number of samples included in teh terminal slope calculation.
Terminal slope r-squared	kel_r2	r2 value from terminal slope linear regression.
Terminal slope span	kel_span	$\frac{kel\mathrm{\_}upper-kel\mathrm{\_}low}{kel\mathrm{\_}thalf}$
Terminal half life	kel_thalf	$\frac{ln(2)}{kel}$
Terminal slope upper time point	kel_upper	Largest time value used to calculate the terminal slope.