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
Study drug and medical condition

Anatomical Therapeutic Chemical (ATC) code

(N04BD02) rasagiline
rasagiline

Medical condition to be studied

Parkinson's disease
Population studied

Short description of the study population

The study population comprised adults aged ≥65 years with diagnosis claims for PD and continuous enrollment for ≥6 months in Medicare Parts A, B, and D fee-for-service coverage who started rasagiline (Cohort A) or a non-rasagiline APD (Cohort B) in 2006- 2015.

Age groups

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

Special population of interest

Other

Special population of interest, other

Patients with Parkinson's disease

Estimated number of subjects

300000
Study design details

Main study objective

To estimate and compare the incidence rate of melanoma PD patients who start treatment with rasagiline and those who start treatment with other anti-Parkinson’s drugs. To examine the association between use of rasagiline and malignant melanoma among PD patients. To estimate and compare the incidence rate of melanoma in PD patients not treated with rasagiline and the rate in subjects without PD.

Outcomes

melanoma

Data analysis plan

Descriptive analyses will compare baseline characteristics of the study cohorts and describe the patterns of anti-Parkinson’s medication use. The incidence of melanoma will be estimated in all cohorts using both validated cases and possible cases for whom medical record information is not available. Incidence rate ratios will be calculated and stratified by relevant confounding variables for each exposure group comparison. Hazard ratios will be estimated using Cox proportional hazards models for each exposure group comparison, with adjustment for covariates. Sensitivity analyses will be performed to evaluate potential detection bias to determine whether rasagiline users may be screened more intensively for melanoma than users of other medications, including the comparison of incidence rates of non-melanoma skin cancer between rasagiline users and users of other anti-Parkinson’s medications.
Documents
Study report
English (81.46 KB - PDF)View document
Study, other information
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