Cardiovascular Events in Parkinson's Disease Patients

May 15, 2017 updated by: GlaxoSmithKline

Background Incidence of Cardiovascular Ischaemic Events in Treated Parkinson's Disease Patients in the Impact Database

Cardiovascular (CV) disease is a common comorbidity of Parkinson's disease (PD). The background incidence rate of CV events in a levodopa-treated PD population was assessed to better understand these comorbidities in the PD population. One objective of the study is to identify a population of prevalent PD patients with incident levodopa use within the years 2004-2010 on the Integrated Health Care Information Services (IHCIS) database. The second objective is to report the incidence of CV events overall and during intervals 0-6, 6-12 and 12-18 months after first prescription of levodopa among all new levodopa users.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Study Type

Observational

Enrollment (Actual)

1

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

20 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

The study cohorts of interest will be identified from the most recent datacut of the IHCIS database. Individuals with one or more prescriptions of levodopa between 1st July 2004 and 30th June 2010 will be included. The date of the first prescription of levodopa in the study time period is defined as the INDEX DATE. All individuals must be on the database with medical and pharmacy benefit for at least 6 months prior to the INDEX DATE. All individuals must have one or more diagnosis codes for Parkinson's disease within the 6 months prior or 6 months post INDEX DATE. Individuals will be excluded if age is <20 years on the INDEX date. Individuals will also be excluded if they have a previous levodopa prescription prior to the INDEX date as only new users of levodopa are of interest.

Description

Inclusion Criteria:

  • Individuals with one or more prescriptions of levodopa between 1st July 2004 and 30th June 2010
  • Individuals on the database with medical and pharmacy benefit for at least 6 months prior to date of first prescription of levodopa
  • Individuals with one or more diagnosis codes for Parkinson's disease within the 6 months prior or 6 months post first prescription of levodopa

Exclusion Criteria:

  • Individuals less than 20 years of age on date of first prescription of levodopa
  • Individuals previously prescribed levodopa prior to study period

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
New levodopa users
Individuals with one or more prescriptions of levodopa between 1st July 2004 and 30th June 2010 but no previous levodopa prescriptions prior to study period
Drug: levodopa
levodopa use

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Occurrence of CV events during first 6 months
Time Frame: 0-6 months after first prescription of levodopa
0-6 months after first prescription of levodopa
Occurrence of CV events during second 6 months
Time Frame: 6-12 months after first prescription of levodopa
6-12 months after first prescription of levodopa
Occurrence of CV events during third 6 months
Time Frame: 12-18 months after first prescription of levodopa
12-18 months after first prescription of levodopa
Overall occurrence of CV events
Time Frame: 0-18 months overall after first prescription of levodopa
0-18 months overall after first prescription of levodopa

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

GlaxoSmithKline

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

September 1, 2011

Primary Completion (Actual)

November 1, 2011

Study Completion (Actual)

November 1, 2011

Study Registration Dates

First Submitted

February 2, 2012

First Submitted That Met QC Criteria

March 1, 2012

First Posted (Estimate)

March 7, 2012

Study Record Updates

Last Update Posted (Actual)

May 16, 2017

Last Update Submitted That Met QC Criteria

May 15, 2017

Last Verified

May 1, 2017

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 116493
  • WEUKBRE5922 (Other Identifier: GSK)

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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