The first PT dataset shows 7 constituents/parameters, each as a single replicate (PTREPNUM=1), at 1 time point (PTTPT=Week 0 / PTTPTNUM=1) and from 1 set of storage conditions (STOCONID= Condition 1) in order to illustrate the variables and terminology required to construct an SDTM-conformant PT dataset for a stability study of a smokeless product. Some constituent names (Values of PTTESTCD/PTTEST) appear twice because their results are reported two separate ways: once for the result as tested and once where the result is expressed as dry weight basis (the latter is indicated by PTTSTDTL = DRY WEIGHT BASIS). Note that the constituent/parameter names shown do not represent an exhaustive list of the controlled terminology that will be developed to support representation of stability studies in SDTM.
STOCONID is used to identify the storage conditions of the e-liquid product for the testing performed. Details of these conditions are represented in the ES dataset example that follows the 2 PT dataset examples.
PTXFN (External File Path) is used to document the location or file name within the submission that contains the lab methodology protocol used to assay the associated constituent/parameter when such methodology is too complex for the single PTMETHOD variable.
Row 1:
Shows the PTTEST of Moisture Content, which reflects the percentage of moisture in the substance for the condition noted in STOCONID (i.e., Condition 1). Moisture Content is used in chemistry stability studies. For microbial stability studies, Water Activity should be used, not Moisture Content (see row 3).
Rows 4, 6:
Show the NNK and NNN tests with the results from the tobacco product as tested.
Rows 5, 7:
Show the NNK and NNN test results as dry weight basis (DWB). Note the use of PTTSTDTL = "DRY WEIGHT BASIS"
Rows 2-3, 8-9:
Show the other analytes measured in testing.
pt.xpt
pt.xpt
Row
STUDYID
DOMAIN
SPTOBID
STOCONID
PTSEQ
PTTESTCD
PTTEST
PTTSTDTL
PTCAT
PTORRES
PTORRESU
PTLLOD
PTSTRESC
PTSTRESN
PTSTRESU
PTXFN
PTNAM
PTSPEC
PTLLOQ
PTREPNUM
PTDTC
PTTPT
PTTPTNUM
1
TOB07
PT
Smokeless01
Condition 1
1
MOISTCTT
Moisture Content
STABILITY TESTING
52.0
%
0.1
52.0
52.0
%
TLT07_V1
TPT LABCO
TOBACCO
0.12
1
02-01-2023
Week 0
1
2
TOB07
PT
Smokeless01
Condition 1
2
PH
pH
STABILITY TESTING
8.06
8.06
8.06
TL009_V1
TPT LABCO
TOBACCO
1
02-01-2023
Week 0
1
3
TOB07
PT
Smokeless01
Condition 1
3
H2OACT
Water Activity
STABILITY TESTING
0.86
0.01
0.86
0.86
TLPH01_V1
TPT LABCO
TOBACCO
0.05
1
02-01-2023
Week 0
1
4
TOB07
PT
Smokeless01
Condition 1
4
NNK
Nicotine-Derived Nitrosamine Ketone
STABILITY TESTING
1.0225
ug/g
0.01
1.0225
1.0225
ug/g
TL026_V12.2
TPT LABCO
TOBACCO
0.05
1
02-01-2023
Week 0
1
5
TOB07
PT
Smokeless01
Condition 1
5
NNK
Nicotine-Derived Nitrosamine Ketone
DRY WEIGHT BASIS
STABILITY TESTING
0.4908
ug/g
0.01
0.4908
0.4908
ug/g
TL026_V12.2
TPT LABCO
TOBACCO
0.05
1
02-01-2023
Week 0
1
6
TOB07
PT
Smokeless01
Condition 1
6
NNN
N-Nitrosonornicotine
STABILITY TESTING
4.4633
ug/g
0.01
4.4633
4.4633
ug/g
TL026_V12.2
TPT LABCO
TOBACCO
0.05
1
02-01-2023
Week 0
1
7
TOB07
PT
Smokeless01
Condition 1
7
NNN
N-Nitrosonornicotine
DRY WEIGHT BASIS
STABILITY TESTING
2.1424
ug/g
0.01
2.1424
2.1424
ug/g
TL026_V12.2
TPT LABCO
TOBACCO
0.05
1
02-01-2023
Week 0
1
8
TOB07
PT
Smokeless01
Condition 1
8
AEBCT
Aerobic Colony Count
STABILITY TESTING
154000
CFU/g
1
154000
154000
CFU/g
TLMB_V1.1
TPT LABCO
TOBACCO
1
1
02-01-2023
Week 0
1
9
TOB07
PT
Smokeless01
Condition 1
9
YSTMLDCT
Yeast and/or Mold Colony Count
STABILITY TESTING
<10
CFU/g
1
<10
CFU/g
TLMB_V1.1
TPT LABCO
TOBACCO
1
1
02-01-2023
Week 0
1
$warningHtml
Dataset Wrapper Debug Message
Please add a row column to your dataset.
The second PT dataset shows testing for just 1 parameter (Moisture Content), performed in 3 replicates (note the values of PTREPNUM), at the first 3 time points of the study (as shown in PTTPT/PTTPTNUM), from 2 sets of storage conditions (STOCONID), in samples of both dried and as-is tobacco (PTSPEC, PTSPCCND) in order to illustrate how those variables are used to represent their associated concepts in a stability study.
Details of the storage conditions are represented in the ES dataset example that follows.
Rows 1-9:
Show the results of testing Moisture Content in 3 replicates (PTREPNUM) at 3 timepoints (weeks 0, 8, and 24) under the storage "Condition 1" (STOCONID).
Rows 10-18:
Show the results of testing Moisture Content in 3 replicates (PTREPNUM) at 3 timepoints (weeks 0, 8, and 24) under the storage "Condition 2" (STOCONID).
pt.xpt
pt.xpt
Row
STUDYID
DOMAIN
SPTOBID
STOCONID
PTSEQ
PTTESTCD
PTTEST
PTORRES
PTORRESU
PTLLOD
PTSTRESC
PTSTRESN
PTSTRESU
PTXFN
PTNAM
PTSPEC
PTSPCCND
PTLLOQ
PTREPNUM
PTDTC
PTTPT
PTTPTNUM
1
TOB07
PT
Smokeless01
Condition 1
111
MOISTCTT
Moisture Content
51.93
%
0.1
51.93
51.93
%
TLT07_V1
TPT LABCO
TOBACCO
AS-IS
0.12
1
02-01-2023
Week 0
1
2
TOB07
PT
Smokeless01
Condition 1
112
MOISTCTT
Moisture Content
51.96
%
0.1
51.96
51.96
%
TLT07_V1
TPT LABCO
TOBACCO
AS-IS
0.12
2
02-01-2023
Week 0
1
3
TOB07
PT
Smokeless01
Condition 1
113
MOISTCTT
Moisture Content
51.98
%
0.1
51.98
51.98
%
TLT07_V1
TPT LABCO
TOBACCO
AS-IS
0.12
3
02-01-2023
Week 0
1
4
TOB07
PT
Smokeless01
Condition 1
114
MOISTCTT
Moisture Content
51.75
%
0.1
51.75
51.75
%
TLT07_V1
TPT LABCO
TOBACCO
AS-IS
0.12
1
03-29-2023
Week 8
2
5
TOB07
PT
Smokeless01
Condition 1
115
MOISTCTT
Moisture Content
51.75
%
0.1
51.75
51.75
%
TLT07_V1
TPT LABCO
TOBACCO
AS-IS
0.12
2
03-29-2023
Week 8
2
6
TOB07
PT
Smokeless01
Condition 1
116
MOISTCTT
Moisture Content
51.67
%
0.1
51.67
51.67
%
TLT07_V1
TPT LABCO
TOBACCO
AS-IS
0.12
3
03-29-2023
Week 8
2
7
TOB07
PT
Smokeless01
Condition 1
117
MOISTCTT
Moisture Content
52.05
%
0.1
52.05
52.05
%
TLT07_V1
TPT LABCO
TOBACCO
AS-IS
0.12
1
07-19-2023
Week 24
3
8
TOB07
PT
Smokeless01
Condition 1
118
MOISTCTT
Moisture Content
52.68
%
0.1
52.68
52.68
%
TLT07_V1
TPT LABCO
TOBACCO
AS-IS
0.12
2
07-19-2023
Week 24
3
9
TOB07
PT
Smokeless01
Condition 1
119
MOISTCTT
Moisture Content
52.21
%
0.1
52.21
52.21
%
TLT07_V1
TPT LABCO
TOBACCO
AS-IS
0.12
3
07-19-2023
Week 24
3
10
TOB07
PT
Smokeless01
Condition 2
120
MOISTCTT
Moisture Content
51.93
%
0.1
51.93
51.93
%
TLT07_V1
TPT LABCO
TOBACCO
AS-IS
0.12
1
02-01-2023
Week 0
1
11
TOB07
PT
Smokeless01
Condition 2
121
MOISTCTT
Moisture Content
51.96
%
0.1
51.96
51.96
%
TLT07_V1
TPT LABCO
TOBACCO
AS-IS
0.12
2
02-01-2023
Week 0
1
12
TOB07
PT
Smokeless01
Condition 2
122
MOISTCTT
Moisture Content
51.98
%
0.1
51.98
51.98
%
TLT07_V1
TPT LABCO
TOBACCO
AS-IS
0.12
3
02-01-2023
Week 0
1
13
TOB07
PT
Smokeless01
Condition 2
123
MOISTCTT
Moisture Content
51.80
%
0.1
51.80
51.80
%
TLT07_V1
TPT LABCO
TOBACCO
AS-IS
0.12
1
03-29-2023
Week 8
2
14
TOB07
PT
Smokeless01
Condition 2
124
MOISTCTT
Moisture Content
51.77
%
0.1
51.77
51.77
%
TLT07_V1
TPT LABCO
TOBACCO
AS-IS
0.12
2
03-29-2023
Week 8
2
15
TOB07
PT
Smokeless01
Condition 2
125
MOISTCTT
Moisture Content
51.84
%
0.1
51.84
51.84
%
TLT07_V1
TPT LABCO
TOBACCO
AS-IS
0.12
3
03-29-2023
Week 8
2
16
TOB07
PT
Smokeless01
Condition 2
126
MOISTCTT
Moisture Content
52.18
%
0.1
52.18
52.18
%
TLT07_V1
TPT LABCO
TOBACCO
AS-IS
0.12
1
07-19-2023
Week 24
3
17
TOB07
PT
Smokeless01
Condition 2
127
MOISTCTT
Moisture Content
52.21
%
0.1
52.21
52.21
%
TLT07_V1
TPT LABCO
TOBACCO
AS-IS
0.12
2
07-19-2023
Week 24
3
18
TOB07
PT
Smokeless01
Condition 2
128
MOISTCTT
Moisture Content
51.87
%
0.1
51.87
51.87
%
TLT07_V1
TPT LABCO
TOBACCO
AS-IS
0.12
3
07-19-2023
Week 24
3
$warningHtml
Dataset Wrapper Debug Message
Please add a row column to your dataset.
Details of the storage conditions are represented in the Environmental Storage Conditions (ES) dataset. The variable STOCONID/Storage Condition ID represents the storage condition and links to the PT datasets by matching values of STOCONID there. Each of the parameters defining that storage condition are represented in ESPARMCD/ESPARM, with values and units shown in ESVAL/ESVALU. The ES dataset shows both sets of storage conditions used across both of the PT dataset examples.