w wanchi
on

 

Dears,

I have a question while creating and vallidating SDTM TU and TR domain.

For example, I have screening tumor data for three target lesions at liver site SEGMENT 3, SEGMENT 4 and SEGMENT 7. Also, the corresponding three Longest Diameters are recorded.

Thereafore, I should create three rows on TU and TR domains for liver site SEGMENT 3, SEGMENT 4 and SEGMENT 7.

For TR domain, the TRTEST='Longest Diameter'/TRTESTCD='LDIAM' for TRLNKID 'T1', 'T2', 'T3';  

For TU domain, the TUTEST='Tumor Identification'/TUTESTCD='TUMIDENT' for TULNKID 'T1', 'T2', 'T3'

(TULOC='Liver', and TUPORTOT='SEGMENT 3', 'SEGMENT 4' and 'SEGMENT 7');

But the validation message indicated that 'Duplicate records' since it should be one records per Finding Result per subject. No Finding Result with the same Test Short Name (--TESTCD) for the same Subject (USUBJID) and the same Collection Date (--DTC) are expected.

However, I think the presentation is correct, and the --LNKID is provided for distinguishing.

May I ask how to resolve this issue? Any feedback or any references on this topic would be appreciated.

 

Forums: SDTM

s Sergiy
on July 9, 2015

Hi Wenchi, 

Current version of SD1117 check produces many false-positive messages. In particular it was not designed to handle Oncology domains.

We are improving the algorithm. Meanwhile, you need to

1. explain false-positive messaged in Reviewer Guide

2. clearly specify Domain Key Variables and describe them in define file. Note, that --SEQ cannot be Key Variable in subject data domains

3. run your own additional validation

Kind Regards, 

Sergiy

w wanchi
on July 14, 2015

Dear Sergiy,

Thanks for your suggestion.

We will explain it in Reviewer Guide, and updated the Key Variables in define.xml file.

 

Best regards,

Wanchi

j Jozef
on July 16, 2015

In my personal opinion, software validators should read the key varaibles from the define.xml file and deciide on whether a record is duplicate or not based on the key variables from the define.xml.

Essentially, define.xml contains the metadata of submission files and thus is leading.

s Sergiy
on July 16, 2015

Yes, it's correct.

We are changing a validation algorithm for our dupliate checks. A usage of define.xml as a source of study specific metadata is a part of it.

Kind Regards,

Sergiy 

d Dmitry
on July 16, 2015

Hi Sergey, XML4Pharma, I understand that a SDTM validation check is discussed here. Just want to note that in case a similar approach will be applied to ADaM, in ADaM there is no strict requirement that key variables uniquely identify a record in a dataset:
ADaM 2.1 page 14:

KEY VARIABLES OF DATASET

A list of variable names that parallels the structure, ideally uniquely identifies and indexes each record in the dataset.

 

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