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  1. When the EC domain is implemented in conjunction with the EX domain, EXVAMT and EXVAMTU would not be used in EX; collected values instead would be represented in ECDOSE and ECDOSU (and ECVAMT and ECVAMTU as needed).

     

Use container such as a cartridge or tank.  Hence used CT of container  to be generic. 

DOSEU  - QUID is not included in CT. 

...

CONTAINERContainer Dosing UnitA dosing measurement based on the container unit.(NCI)Container Dosing Unit
CIGARCigar Dosing UnitA dosing measurement based on the cigar unit.
CIGARETTECigarette Dosing UnitA dosing measurement based on the cigarette unit.
PUFFPuff Dosing UnitA means of delivering a defined dose of a therapeutic aerolized solution into either the upper or lower respiratory tract. Metered-dose inhalers or spray pumps are devices that provide a puff dose for delivery into either the oral or the nasal cavity.(NCI)
CARTRIDGECartridge Dosing UnitA dosing measurement based on the cartridge unit.(NCI)

More unit codes as well- PACK, PACKAGE, CIGAR, Cigarettes. POUCH,  

 In In this study, subjects were randomized to one of three 24-week conditions.  1 of 3 nicotine dosage levels. At the baseline visit (week 0), they receiving either received an ENDS  ENDS device that used  used 0, 8, or 36 24 mg/ml nicotine liquid. Self-reported daily cigarette consumption  were measured at all study visits  (Weeks 1, 2, 4, 8, 12, )consumption was recorded for each day of the study for 4 weeks. The subjects were supplied replacement nicotine cartridges at each weekly visit.   The sponsor applicant used an electronic e-diary application to track when the cartridge were replacedcartridges were inserted and removed, and the daily number of cigarettes smoked.   The subject Subjects used their normal brand of cigarettes , and ; these were not supplied by the sponsorapplicant, and are not considered a study product. Each cartridge was 8 mL.   

Vapes, vaporizers, vape pens, hookah pens, electronic cigarettes (e-cigarettes or e-cigs), e-cigars, and e-pipes are some of the many tobacco product terms used to describe electronic nicotine delivery systems (ENDS). These products use an “e-liquid” that usually contains nicotine derived from tobacco, as well as flavorings, propylene glycol, vegetable glycerin, and other ingredients. The liquid is heated to create an aerosol that the user inhales.

Since, the subject regular cigarettes were not supplied by the sponsor, the sponsor elected to report this data as a Concomitant medication, in the CM domain. The ENDS device exposure use was represented in EC.        

 

No other nicotine replacement products were allowed to be used. Multiple cartridges were dispensed at a visit.   

The applicant represented the cigarettes used in the SU domain. After the first visit, the number of cigarettes smoked for each day of the study were represented. If no cigarettes were smoked,(although "0" records are typically not included), 0 was recorded as the data was collected. Only a few rows are shown.    

mL
Dataset wrap
Dataset wrap
NameEC
ECENDTC
Dataset2
RowSTUDYIDDOMAINUSUBJID
ECSEQ
SUSEQ
ECTRT
SUTRT
ECDOSE
SUCAT
ECDOSU
SUDOSE
ECROUTE
SUDOSU
ECVAMT
SUDOSFRQ
ECVAMT
SUSTDTC
ECSTDTC
SUENDTC
1TENDS01
EC
SU
10001 
TEN010011
e-nicotine liquid 1CONTAINERINHALED8
CIGARETTESTOBACCO6CIGARETTEQD2020-06-272020-
07
06-
01
27
2TENDS01
EC
SU
10001 
TEN010012
CIGARETTESTOBACCO
e-nicotine liquid 
1
CONTAINERINHALED8mL
CIGARETTEQD2020-
07
06-
01
282020-
07
06-
05
28
3TENDS01
EC
SU
10001 
TEN010013
e-nicotine liquid  1CONTAINERINHALED8mL
CIGARETTESTOBACCO0CIGARETTEQD2020-06-292020-
07
06-
052020-07-104TENDS01EC100021e-nicotine liquid 1CONTAINERINHALED8mL2020-09-012020-09-075TENDS01EC10002 2e-nicotine liquid 1CONTAINERINHALED8mL2020-09-072020-09-146TENDS01EC10002 3e-nicotine liquid 1CONTAINERINHALED8mL2020-09-142020-09-217TENDS01EC10002 4e-nicotine liquid 1CONTAINERINHALED8mL2020-09-212020-09-288TENDS01EC10002 5e-nicotine liquid 1CONTAINERINHALED8mL2020-09-282020-09-319TENDS01EC10002 6e-nicotine liquid 1CONTAINERINHALED8mL2020-10-312020-10-0810TENDS01EC10002 7e-nicotine liquid 1CONTAINERINHALED8mL2020-10-082020-10-1511TENDS01EC10002 8e-nicotine liquid 1CONTAINERINHALED8mL2020-10-152020-10-22

EX would report the unblinded exposure to e-nicotine liquid. 

1) The dose may be the actual volume of liquid used over the interval represented in the dates, or that 1 container was used, or xxx. 

2. IF amount of product used ( Numer of pouches, number of cigarettes, etc then we may be able to use VAMT, and Pharmaceutical strength to provide more details. 

29

The DA domain was used to represent dispensed and returned amounts. The ENDS product used in the study was assigned a product identifier (VAPE-Z27), and each cartridge had a uniquely assigned number. This unique number was represented in DAREFID. Multiple cartridges were dispensed at weekly visits, and each cartridge was tracked. At each weekly visit, all previously dispensed cartridges were returned and new cartridges dispensed. Cartridges were replaced at each visit. DADTC are the visit dates when the cartridge was returned or dispensed. Cartridges not used were recorded as having the full volume returned.     

Dataset wrap
Dataset2
RowSTUDYIDDOMAINUSUBJIDDASEQSPTOBIDDAREFIDDATESTCDDATESTDACATDAORRESDAORRESUDASTRESCDASTRESNDASTRESUVISITNUMDADTC
1TENDS01DATEN01001

1

VAPE-Z27CRT8754DISPAMTDispensed AmountSTUDY PRODUCT8mL88mL12020-06-26
2TENDS01DATEN01001

2

VAPE-Z27CRT8768DISPAMTDispensed AmountSTUDY PRODUCT8mL88mL12020-06-26
3TENDS01DATEN01001

3

VAPE-Z27CRT8769DISPAMTDispensed AmountSTUDY PRODUCT8mL88mL12020-06-26
4TENDS01DATEN01001

4

VAPE-Z27CRT8754RETAMTReturned AmountSTUDY PRODUCT2mL22mL22020-07-06
2TENDS01DATEN01001

5

VAPE-Z27CRT8768RETAMTReturned AmountSTUDY PRODUCT1.6mL1.61.6mL22020-07-06
3TENDS01DATEN01001

6

VAPE-Z27CRT8769RETAMTReturned AmountSTUDY PRODUCT8mL88mL22020-07-06
5TENDS01DATEN01001

7

VAPE-Z27CRT9756DISPAMTDispensed AmountSTUDY PRODUCT8mL88mL22020-07-06
6TENDS01DATEN01001

8

VAPE-Z27CRT9756RETAMTReturned AmountSTUDY PRODUCT1mL11mL32020-07-10

Because the data in EC would be practically identical to the summarized EX domain, the applicant did not submit the EC domain. The applicant unblinded the study before creating the EX domain. The unblinded product name is provided in EXTRT; here, a dummy name is used for the tobacco product.

The applicant used an e-diary to collect the start and end date of the insertion and removal date of each cartridge in the ENDS device. For simplicity, in this example the actual times of insertion/removal were not collected, although this may often be collected.    

The total amount of liquid product used from each cartridge was determined using the data in the DA domain. The associated nicotine pharmaceutical strength of each cartridge was known. The applicant used this information in the analysis. The summaries included in the analysis were the estimated number of cartridges used per week, and the estimated nicotine exposure from the cartridges per day.3. Some sponsor may leave these details  to an ADaM datset, and provide really only collected data for the exposure.      

INHALED
Dataset wrap
NameEXex
EXVAMTU
Dataset2
RowSTUDYIDDOMAINUSUBJIDEXSEQSPTOBIDEXREFIDEXTRTEXDOSEEXDOSUEXDOSFRMEXROUTE
ECXAMT
EXPSTRG
EXPSTRG
EXPSTRGUEXSTDTCEXENDTC
1TENDS01EX
10001 
TEN010011VAPE-Z27CRT8754Nicotine e-
nicotine
liquid6
1
mL
CONTAINER
CARTRIDGERESPIRATORY (INHALATION)8mg/mL2020-06-
27
262020-07-01
2TENDS01
EC
EX
10001 
TEN010012
e
VAPE-
nicotine liquid 
Z27
1CONTAINERINHALED8mg/mL2020-07-012020-07-05
CRT8768Nicotine e-liquid6.4mLCARTRIDGERESPIRATORY (INHALATION)
3TENDS01EC10001 3e-nicotine liquid  1CONTAINERINHALED
8mg/mL
2020-07-05
2020-07-
104TENDS01EC100021e-nicotine liquid  1CONTAINERINHALED36mg/mL2020-09-
012020
-09
-07
5TENDS01EC10002 2e-nicotine liquid 1CONTAINERINHALED36mg/mL2020-09-072020-09-146TENDS01EC10002 3e-nicotine liquid 1CONTAINERINHALED36mg/mL2020-09-142020-09-217TENDS01EC10002 4e-nicotine liquid 1CONTAINERINHALED36mg/mL2020-09-212020-09-288TENDS01EC10002 5e-nicotine liquid 1CONTAINERINHALED36
-06
3TENDS01EXTEN010013VAPE-Z27CRT9756Nicotine e-liquid7mLCARTRIDGERESPIRATORY (INHALATION)8
mg/mL2020-
09
07-
28
062020-
09-319TENDS01EC10002 6e-nicotine liquid 1CONTAINERINHALED36mg/mL2020-10-312020-10-08
07-10
3
10
TENDS01
EC
EX
10002 
TEN01001
7
4
e
VAPE-
nicotine liquid 
Z27
1CONTAINERINHALED36mg/mL2020-10-082020-10-1511TENDS01EC10002 8e-nicotine liquid 1CONTAINERINHALED36mg/mL2020-10-152020-10-22

In this case, i get the volume used from DA and derive this. 

RowSTUDYIDDOMAINUSUBJIDEXSEQEXTRTEXDOSEEXDOSUEXROUTEEXPSTRGEXPSTRGEXSTDTCEXENDTC1TENDS01EX10001 1e-nicotine liquid7mLINHALED8mg/mL2020-06-272020-07-012TENDS01EC10001 2e-nicotine liquid 6mL INHALED
CRT9778Nicotine e-liquid8mLCARTRIDGERESPIRATORY (INHALATION)8mg/mL2020-07-
01
102020-07-
05
14
3
4TENDS01
EC
EX
10001 
TEN10002
3
1
e
VAPE-
nicotine liquid  4TENDS01EC100021e-nicotine liquid  6mL INHALED36
Z27
7mL INHALED8mg/mL2020-07-052020-07-10
CRT8000Nicotine e-liquid5mLCARTRIDGERESPIRATORY (INHALATION)0
mg/mL2020-09-012020-09-07
5TENDS01
EC
EX
10002 
TEN100022VAPE-Z27CRT9006Nicotine e-
nicotine liquid 5mL INHALED
liquid7mLCARTRIDGERESPIRATORY (INHALATION)0
36
mg/mL2020-09-072020-09-14
6TENDS01
EC
EX
10002 
TEN100023VAPE-Z27CRT9008Nicotine e-
nicotine liquid 
liquid8mL
mL INHALED
CARTRIDGERESPIRATORY (INHALATION)0
36
mg/mL2020-09-142020-09-21
7TENDS01
EC
EX
10002 
TEN100024VAPE-Z27CRT9017Nicotine e-
nicotine liquid 8mL INHALED
liquid6mLCARTRIDGERESPIRATORY (INHALATION)0
36
mg/mL2020-09-212020-09-28
8TENDS01
EC
EX
10002 
TEN100025VAPE-Z27CRT9089Nicotine e-
nicotine liquid 8mL INHALED
liquid7mLCARTRIDGERESPIRATORY (INHALATION)0
36
mg/mL2020-09-282020-09-31
9TENDS01
EC
EX
10002 
TEN100026VAPE-Z27CRT9128Nicotine e-
nicotine liquid 
liquid8mL
mL INHALED
CARTRIDGERESPIRATORY (INHALATION)0
36
mg/mL2020-10-312020-10-08
10TENDS01
EC
EX
10002 
TEN100027VAPE-Z27CRT6868Nicotine e-
nicotine liquid 
liquid6.7mL
mL INHALED
CARTRIDGERESPIRATORY (INHALATION)0
36
mg/mL2020-10-082020-10-15
11TENDS01
EC
EX
10002 
TEN100028VAPE-Z27CRT7868Nicotine e-
nicotine liquid 7mL INHALED
liquid5.5mLCARTRIDGERESPIRATORY (INHALATION)0
36
mg/mL2020-10-152020-10-22