A Study on Anticholinergic Use: Attribution of Overactive Bladder (OAB) Medications to the Anticholinergic Burden

October 29, 2024 updated by: Astellas Pharma Singapore Pte. Ltd.

A Retrospective Database Analysis of Anticholinergic Burden Among the Elderly With and Without Overactive Bladder in Australia and South Korea

Outpatients with at least one dispensing record of any medication will be included in the study. An index date will be assigned to each participant and prescription records for anticholinergics will be used in the study.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
6295279

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

61 years and older (Older Adult)

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

Australian and Korean with at least one prescription of any treatment between January 22, 2016 (For Korea: January 1st, 2016) and December 31, 2016 derived from country claims data.

Description

Inclusion Criteria:

  • Have at least one dispensing of any medication between January 22, 2016 and December 31, 2016.

Inclusion Criteria for Korea:

  • Have at least one dispensing of any medication between January 1st, 2016 and December 31, 2016.
  • Participant was diagnosed with OAB (ICD-10 N32.8, N31.0, N31.1, N31.2, N31.8, N31.9, N32.9, N39.8 and N39.40) at index date.
  • Participant did not have dispensing record of an OAB medication during the washout period (6 months prior to the index date).

Exclusion Criteria:

  • Participants who do not have a complete year of data availability in the database prior to index date.
  • Have record of hospitalization on the index date.

Exclusion Criteria for Korea:

  • Participant was hospitalized on the index date.
  • Participant did not have an active insurance status during the washout period or on the index date.
  • Participant received onabotulinumtoxin A and/or surgical intervention as part of the OAB treatment during the washout period.
  • Participant was diagnosed with stress incontinence (ICD-10 N39.3 or equivalent) or had dispensing record of medication for stress incontinence (duloxetine) during the washout period.
  • Participant was diagnosed with urinary tract infection (ICD-10 N30.0 and N39.0 or equivalent) during the washout period or on the index date.

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

  • Observational Models: Cohort
  • Time Perspectives: Retrospective

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Subjects With Overactive Bladder Treatment
Subjects who have dispensing records for treatment of overactive bladder will be included
Other: Non-Interventional
Overview of anticholinergic burden, rather than to evaluate specific drugs
Subjects Without Overactive Bladder Treatment
Subjects who do not have dispensing records for treatment of overactive bladder will be included
Other: Non-Interventional
Overview of anticholinergic burden, rather than to evaluate specific drugs

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Anticholinergic Cognitive Burden (ACB) score
Time Frame: 100 days
ACB will be calculated based on methodology from Campbell et al (2016). Sum (Drug A #days prescribed X ACB scale score) + (Drug B #days prescribed X ACB scale score) + (Drug X…)/Number of days with any medication prescribed. The cumulative score has a range from 0 to infinity, with higher values indicating a higher cumulative anticholinergic burden of the patient.
100 days
Korea Specific: Percentage of Participants With any Listed Anticholinergic Use
Time Frame: 100 days
This will be calculated as number of participants with any listed anticholinergics use divided by number of participants fulfilling the general eligibility criteria of the study (in each study dataset) multiplied by 100.
100 days
Korea Specific: Percentage of Participants With Strong Anticholinergic Use
Time Frame: 100 days
This will be calculated as number of participants with strong anticholinergics use divided by number of participants fulfilling the general eligibility criteria of the study (in each study dataset) multiplied by 100.
100 days
Korea Specific: Number of Anticholinergics Dispensed per Participants
Time Frame: 100 days
This will be calculated as total number of anticholinergics dispensed divided by number of participants fulfilling the general eligibility criteria of the study (in each study dataset) multiplied by 100.
100 days
Korea Specific: Attribution Proportion of OAB medications to total ACB in OAB Cohort
Time Frame: 100 days
Attribution proportion of OAB medication to total ACB will be calculated as the ratio between the sum over all OAB patients of the ACB scores of each OAB medication multiplied by the number of days supply in the numerator and the sum over all OAB patients of the ACB scores of each antimuscarinic medication multiplied by the number of days supply in the denominator.
100 days

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Median percentage of ACB score derived from overactive bladder (OAB) treatment(s) in total ACB score
Time Frame: 100 days
The attribution of antimuscarinics for OAB treatment to entire anticholinergic exposures in OAB patients.
100 days

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Astellas Pharma Singapore Pte. Ltd.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Central Contact, Astellas Pharma Global Development, Inc.

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 (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
March 7, 2019

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
May 6, 2022

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
May 6, 2022

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 25, 2019

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 3, 2019

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
April 4, 2019

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 31, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 29, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 178-MA-3241

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Access to anonymized individual participant level data will not be provided for this trial. Further details on Astellas' data sharing policy can be found at https://www.clinicaltrials.astellas.com/transparency/.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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