NCT03484260

Brief Summary

We will investigate if testosterone is preferentially given to patients at higher risk of cardiovascular events. If this is the case, then observational studies may be prone to selection bias resulting in overestimation of the cardiovascular risk associated with testosterone when compared to a healthier population not taking testosterone

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
27,778

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Apr 2018

Shorter than P25 for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 22, 2018

Completed
8 days until next milestone

First Posted

Study publicly available on registry

March 30, 2018

Completed
2 days until next milestone

Study Start

First participant enrolled

April 1, 2018

Completed
1 month until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 15, 2018

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 15, 2018

Completed
Last Updated

May 14, 2019

Status Verified

May 1, 2019

Enrollment Period

1 month

First QC Date

March 22, 2018

Last Update Submit

May 13, 2019

Conditions

Keywords

Risk factors predicting the initiation of testosterone use

Outcome Measures

Primary Outcomes (1)

  • Estimation of the association between cardiovascular risk factors and initiation of testosterone therapy

    Retrospectively from 01 January 2001 to 31 March 2016

Study Arms (2)

Case group: Testosterone Product

Male subjects prescribed testosterone in UK

Drug: Testosterone Product

Control group

Matched male subjects not prescribed testosterone in the UK

Interventions

Men used testosterone product following prescription

Case group: Testosterone Product

Eligibility Criteria

Age18 Years+
Sexmale
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The source population is the subset of male patients in the Clinical Practice Research Datalink (CPRD) that has been linked to the Hospital Episodes Statistics (HES) database (CPRD-HES). Cases will be defined by first testosterone use between 1st January 2001 and 31st March 2016 (study period). The date of the GP consultation associated with the first testosterone prescription will be designated as the index day. All cases will be required to be over 18 years on the index day, to have contributed for at least 2 years to the CPRD-HES link and to have no history of testosterone before the index day.

You may qualify if:

  • \- All male individuals in the source population with a first testosterone use during the study period will be included as cases. The date of the GP consultation associated with the first testosterone prescription will be designated as the index day.

You may not qualify if:

  • \- Patients of less than 18 years on the index day, with less than 2-year contribution to the CPRD-HES link before the index day, or with use of testosterone before the study period will be excluded from the group of cases.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Many Locations

Berlin, 13342, Germany

Location

Related Links

MeSH Terms

Conditions

Hypogonadism

Condition Hierarchy (Ancestors)

Gonadal DisordersEndocrine System Diseases

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
RETROSPECTIVE
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 22, 2018

First Posted

March 30, 2018

Study Start

April 1, 2018

Primary Completion

May 15, 2018

Study Completion

May 15, 2018

Last Updated

May 14, 2019

Record last verified: 2019-05

Locations