Study type

Study topic

Disease /health condition
Human medicinal product

Study type

Non-interventional study

Scope of the study

Assessment of risk minimisation measure implementation or effectiveness

Data collection methods

Secondary use of data
Non-interventional study

Non-interventional study design

Cohort
Other

Non-interventional study design, other

Post-marketing database surveillance
Study drug and medical condition

Anatomical Therapeutic Chemical (ATC) code

(C10AA05) atorvastatin
atorvastatin
(C10AX09) ezetimibe
ezetimibe
(C10BA05) atorvastatin and ezetimibe
atorvastatin and ezetimibe

Medical condition to be studied

Hypercholesterolaemia
Population studied

Short description of the study population

The surveillance population is hypercholesterolemic patients with no past history of diabetes mellitus who are prescribed with ATOZET or coadministration of ezetimibe and atorvastatin between 1-APR-2018 and 30-SEP-2020 (selection period).
Inclusion criteria
1) Patients who have a hypercholesterolemia diagnosis (ICD code: E78.5) during the selection period, AND
2) Patients who have received ATOZET (ATC code: C10BA05) or coadministration of ezetimibe and atorvastatin (ATC code: C10AX09 and C10AA05) during the selection period.
The exclusion criteria are as follows:
• For the ATZ-group
1) Patients given ezetimibe monotherapy (C10AX09) as a pre-treatment drug, OR
2) Patients given other lipid modifying agents (C10) as a pre-treatment drug except atorvastatin (C10AA05), OR
3) Patients who were not given any pre-treatment drug, OR
4) Patients who had ATOZET treatment before April 2018, OR
5) Patients who do not have a 6-month lookback period prior to the index date, OR
6) Patients who have any missing information on critical variables (e.g., gender, age), OR
7) Patients who have severe liver dysfunction considered as the contraindication for the use of ATOZET, OR
8) Patients who were diagnosed with diabetes mellitus (ICD-10 codes: E10-E14) or were using antidiabetic drugs (A10) during the lookback period, OR
9) Patients whose blood glucose level was >200 mg/dL during the 6-month lookback period prior to the index date, OR
10) Patients whose HbA1c level was >6.5% during the 6-month lookback period before the index date will be excluded.
• For the EZE-ATV-group
1) Patients given ezetimibe (C10AX09) as a pre-treatment drug, OR
2) Patients given other lipid modifying agents (C10) as a pre-treatment drug except atorvastatin (C10AX09), OR
3) Patients who were not given any pre-treatment drug, OR
4) Patients who had Ezetimibe/Atorvastatin coadministration treatment before April 2018, OR
5) Patients who do not have a 6-month lookback period prior to the index date, OR
6) Patient

Age groups

Adults (18 to < 46 years)
Adults (46 to < 65 years)
Adults (65 to < 75 years)
Adults (75 to < 85 years)
Adults (85 years and over)

Special population of interest

Hepatic impaired

Estimated number of subjects

2000
Study design details

Main study objective

To compare the incidence rates of HOI between those taking ATOZET and those taking the coadministration of ezetimibe and atorvastatin. The HOI for this study are hyperglycemia and diabetes mellitus.

Outcomes

The primary outcomes for diabetes and hyperglycemia are defined as: diagnostic code for hyperglycemia or diabetes mellitus AND (blood glucose > 200 mg/dL AND HbA1c >6.5%) OR (blood glucose > 200 mg/dL two times on different days). The secondary outcomes for diabetes and hyperglycemia are defined as: 1) (blood glucose > 200 mg/dL AND HbA1c >6.5%) OR (blood glucose > 200 mg/dL two times on different days) . 2) diagnostic code for hyperglycemia or diabetes mellitus AND (blood glucose > 200 mg/dL once or more than once).

Data analysis plan

- Calculation of number of diabetes or hyperglycemia HOI (based on various definitions) per 1,000 person years for the ATOZET and ezetimibe/atorvastatin coadministration groups - Calculation of incidence rate ratios (IRR) of various diabetes or hyperglycemiaHOI, adjusting for covariates, for the ATOZET and ezetimibe/atorvastatin coadministration groups
Documents
Study results
English (2.69 MB - PDF)View document