In this study, subjects were randomized to different doses of a nicotine inhaler. The recommended usage instruction for the nicotine inhaler were provided to the subject at each visit. At visit 1-3 subjects were to use 6-10 cartridges per day, and during visit 4-6 subjects were to use 3-6 cartridges per day. Subject were encouraged to not to use any other tobacco products, nicotine replacement therapies or alcohol during the study. Data on usage of these products were collected using an e-diary, where the subject provided information on the product used each day. Only days were a product was used were represented.
Alcohol usage and tobacco product usage were represented in the SU domain. SUCAT allows the records to be grouped into tobacco -related data and alcohol related data. In this example, the products prespecified so SUTRT does not require a standardized SUDECOD equivalent. The sponsor only include SUSTDTC and SUENDTC as timing variables.
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Drugs used in nicotine dependency are considered medically acceptable drugs and were represented in the Concomitant Medication (CM) domain. This subject used a 14 mg nicotine replacement patch . The sponsor included the CMCLA, CMDECOD, and CM MODIFY. These were included to reflect standardized coding of the medication.
A Product Accountability (DA) domain was used to record the amount of study product transferred to or from the study subjects. At each visit the subject was supplied with 90 cartridges per week for weeks 1-3, and 50 cartridges per week for weeks 4-6. The number of cartridge returned were counted. DACAT was used to indicate that the products of interest was the study product. DASPID and DAREFID can be used for code numbers that appeared on the study product label, in this case no code numbers were used on the labels. The sponsor included VISITNUM and DADTC as these variables are expected in this domain. DADTC was the date the supplies were dispensed or returned, these corresponded to the dates of the visits.
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The recommended usage instruction for the inhaled nicotine were provided to the subject at each visit. At visit 1-3 subjects were to use 6 -10 cartridges per day, and during visit 4-6 subjects were to use 3-6 cartridges per day. The sponsor used the EC domain to represent the collected exposure data. These usage recommendations were represented in DOSRGM, which is the intended Dose Regimen.
The ECMOOD permissible variable was used to reflect the intended usage recommendations and the actual usage of the inhaled nicotine. When this variable is used, it must be populated for all records. This variable can not be used in EX.
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The EX dataset shows the actual administrations. Note the scheduled records are not included. Only a few rows are shown for illustration. The pharmaceutical strength was included to identify what dose of the nicotine inhaler was used by the subject. Since EXENDTC is an expected variable, the sponsor populated this timing variable with the start date.
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