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Adrenal; Insufficiency Gluccorticoid-InducedNCT03575247

The Risk of Adrenal Insufficiency and Cushing Syndrome Associated With Glucocorticoid Therapy in People With Chronic Inflammatory Diseases

An observational study of Adrenal; Insufficiency Gluccorticoid-Induced and Cushing; Syndrome or Disease, Glucocorticoid-Induced, run by University of Leeds.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

Glucocorticoids are widely used for the treatment of chronic inflammatory diseases. Although glucocorticoids are effective in controlling disease symptoms, continuous use of the drugs can lead to suppression of adrenal hormones or excessive cortisol level in the blood stream. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Glucocorticoids
How many people
111,804 participants
Where
No sites listed yet
Study dates
1 Jan 1998to 30 Sep 2015
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patients registered in CPRD who were eligible for data linkage and had been diagnosed with at least one of six chronic inflammatory diseases (inflammatory bowel diseases, systemic lupus erythematosus, polymyalgia rheumatica, giant cell arteritis, rheumatoid arthritis, and vasculitis) in the period between 1st Jan 1998 and 30th September 2015.

Who may be able to join

  • Patients aged 18 years old or over
  • Registered in a participating general practice for more than 1 year during the study period
  • Minimum of 1 year prior to study entry meeting CPRD data quality
  • Diagnosed with at least one of the 6 chronic inflammatory diseases

Who cannot join

  • Patients aged under 18 years during the study period
  • Registered in general practices that did not consent to data linkage

About this study

Glucocorticoids are widely used for the treatment of chronic inflammatory diseases. Although glucocorticoids are effective in controlling disease symptoms, continuous use of the drugs can lead to suppression of adrenal hormones or excessive cortisol level in the blood stream. That is, excess blood cortisol level due to glucocorticoid exogenous supply can either inhibit the 'hypothalamus-pituitary-adrenal axis' for adrenal hormones production or result in Cushing symptoms.

In the period between 1989 and 2008 in the UK, it was estimated that 0.6%-0.8% of the general adult population were long-term users of oral glucocorticoids. However, there is no data on the risk of adrenal suppression and Cushing syndrome due to chronic use of glucocorticoids in the UK to date.

The aim of the study is to investigate the risk of adrenal insufficiency and Cushing syndrome due to long-term use of glucocorticoids in England.

Read the detailed description

Adrenal insufficiency is a clinical condition that is associated with a deficiency of adrenal hormones, mainly: glucocorticoids and mineralocorticoids. Cushing syndrome is also a condition that stems from the existence of persistent high cortisol level in the body. The majority of Cushing syndrome cases are exogenous (iatrogenic or due to use of medication).

Glucocorticoids are widely used for the treatment of chronic inflammatory diseases. Although glucocorticoids are effective in controlling disease symptoms, continuous use of the drugs can lead to suppression of adrenal hormones or excessive cortisol level in the blood stream. That is, excess blood cortisol level due to glucocorticoid exogenous supply can either inhibit the 'hypothalamus-pituitary-adrenal axis' for adrenal hormones production or result in Cushing symptoms.

In the period between 1989 and 2008 in the UK, it was estimated that 0.6%-0.8% of the general adult population were long-term users of oral glucocorticoids. However, there is no data on the risk of adrenal suppression and Cushing syndrome due to chronic use of glucocorticoids in the UK to date

The aim of the study is to investigate the risk of adrenal insufficiency and Cushing syndrome due to long-term use of glucocorticoids in England. This is a retrospective cohort study of people diagnosed with at least one of six chronic inflammatory diseases (polymialgia rheumatica, giant cell arteritis, systemic lupus erythematosus, rheumatoid arthritis, vasculitis and inflammatory bowel disease).

This study will be based on the analysis of existing primary care health records routinely collected, linked to hospital and mortality data.

Being tested
Glucocorticoids
Medical subject headings
Syndrome, Disease

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • GlucocorticoidsDrug

    Long-term use of glucocorticoids

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Glucocorticoid-related adrenal insufficiency

    First recorded diagnosis of adrenal insufficiency

    Measured: 18 years

  2. Glucocorticoid-related Cushing syndrome

    First recorded diagnosis of Cushing syndrome

    Measured: 18 years

Secondary outcomes (1)
  1. All cause mortality

    Recorded death of any cause

    Measured: 18 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted2 Jul 2018
  2. Study start1 Jan 1998
  3. Primary completion30 Jan 2015
  4. Study completion30 Sep 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Retrospective
Enrolment
111,804 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03575247
Sponsor's protocol ID
16_146
Status last verified
Jun 2018
First submitted
20 Jun 2018
Last updated
2 Jul 2018
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Adrenal; Insufficiency Gluccorticoid-Induced and Cushing; Syndrome or Disease, Glucocorticoid-Induced, run by University of Leeds.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 2 Jul 2018. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Glucocorticoid-related adrenal insufficiency (time frame: 18 years). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 2 Jul 2018.

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