Hi Roeland,

ERROR_TERM in Y and in DUM should differ: one should include EPS() while the other should use only SD. F_FLAG should be set to zero outside M3 block. What is DRUG.EQ.1, is it parent? there should be a separate M3 part for metabolite.

It would be easier to debug if you would provide the full code of the ERROR block

Thank you,
Leonid


On 8/16/2022 6:53 AM, Roeland Wasmann wrote:
Hi all,

I have a problem while trying to implement the m3 method in my model with a parent and metabolite. I could really use some help.

About 50% of the parent data is BLQ while the metabolite only has a couple of BLQs. When modeling them separately there is no issue but when I have them both in one model, I get the following error:

/Recompiling certain components.
starting wait
ending wait
Exiting lpreddo
Compiling FSUBS
FSUBS.f90:1322:6:/

/       B000056=PHI(DUM)/

/      1/

/Error: Unclassifiable statement at (1)
Building NONMEM Executable
gfortran: error: fsubs.o: No such file or directory
No nonmem execution.
It seems like Fortran compilation by NONMEM's nmfe script failed. Cannot
start NONMEM.
Go to the NM_run1 subdirectory and run psn.mod with NONMEM's nmfe script to diagnose the problem./

The NM_run1 folder does not provide any answers… The M3 part of the error block looks like this:

Y = IPRED + ERROR_TERM

*DUM = (LLOQ-IPRED) / ERROR_TERM
CUMD  =  PHI(DUM)
IF (ICALL.NE.4.AND.BLQ.GT.0.AND.DRUG.EQ.1) THEN
F_FLAG = 1
Y = CUMD
MDVRES = 1
ENDIF*

When I put the “DUM” part within the PHI (i.e., “*CUMD  = PHI(((LLOQ-IPRED) / ERROR_TERM))*” the error changes slightly:

/Compiling FSUBS
FSUBS.f90:1324:6:/

/       B000058=PHI(B000056)/

When I remove the “*.AND.DRUG.EQ.1*” from IF I  get:

/FSUBS.f90:1355:6:/

/       B000061=PHI(DUM)/

Please let me know what info I should provide to better diagnose this problem challenge.

Thanks in advance for helping out!

Cheers Roeland

------------------------------------------

*Roeland Wasmann, PharmD, PhD*

Division of Clinical Pharmacology

Department of Medicine

University of Cape Town

K45 Old Main Building

Groote Schuur Hospital

Observatory, Cape Town

7925 South Africa

phone: +27 21 650 4861

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