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Diabetes Mellitus, Type 2NCT01767389

Glucagon-like Peptide (GLP) Utilization and Safety

An observational study of Diabetes Mellitus, Type 2, run by GlaxoSmithKline.

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

This study will assess the utilization patterns (adherence, source of the index antidiabetic agent (ADA) and treatment modification) of the marketed glucagon-like peptide-1 (GLP-1) receptor agonists (exenatide and liraglutide), dipeptidyl-peptidase-4 (DPP-4) inhibitors (sitagliptin, saxagliptin, and linagliptin) and… Read more about this study

Who is it for?
Ages 18 to 64 years
Conditions the study is for
Diabetes Mellitus, Type 2
What is being tested?
The GLP-1 receptor agonist users, DPP-4 inhibitor users and Other ADA users
How many people
1 participants
Where
No sites listed yet
Study dates
Sep 2012to Dec 2013
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 to 64 years
  • All sexes
  • No healthy volunteers
  • Adult

Study population: The study population will include subjects aged ≥ 18 and ≤ 64 years as of index date and those who have continuous enrolment for at least 12 months in Truven (Thomson Reuters) commercial health insurance database from 2005-2011. The Truven database captures person-specific clinical utilization, expenditures, and enrolment across inpatient, outpatient, prescription drug, and carve-out services from a selection of large employers, health plans, and government and public organizations. This databases links paid claims and encounter data to detailed patient information across sites and types of providers, and over time. The annual medical databases include private sector health data from approximately 100 payers. Historically, more than 500 million claim records are available in the database. The Commercial Claims and Encounters Database represents the medical experience of insured employees and their dependents for active employees, early retirees, COBRA continues, and their dependents i

Who may be able to join

  • Subjects aged ≥ 18 and ≤ 64 years as of index date and those who have continuous enrolment for at least 12 months in Truven
  • Subjects should have complete medical and pharmacy benefits and continuous enrolment in the health plan for at least 12 months before the index date (pre-index period).
  • Subjects should also have at least 1 claim of T2D diagnosis identified using ICD-9 codes 250.x0 or 250.x2 (excluding 250.x1 and/or 250.x3 - Type 1 diabetes and 648.0x - gestational diabetes)

Who cannot join

  • For the objective of evaluating the association between GLP-1 receptor agonists, DPP-4 inhibitors and acute pancreatitis as compared to the association observed between this outcome and the use of other ADAs, subjects having evidence of pancreatic disease (ICD 9 code of 577.xx) in the pre-index period (12 months before the index date) will be excluded.

About this study

Official title: Glucagon-like Peptide-1 (GLP-1) Agonists: Treatment Utilization Patterns and Risk of Acute Pancreatitis

This study will assess the utilization patterns (adherence, source of the index antidiabetic agent (ADA) and treatment modification) of the marketed glucagon-like peptide-1 (GLP-1) receptor agonists (exenatide and liraglutide), dipeptidyl-peptidase-4 (DPP-4) inhibitors (sitagliptin, saxagliptin, and linagliptin) and other ADAs and the incidence rate of acute pancreatitis among the users of these GLP-1 receptor agonists and users of DPP-4 inhibitors, separately, in comparison to other ADAs.

The proposed study will help in understanding the treatment utilization patterns and the incidence rate of acute pancreatitis among users of the marketed GLP-1 receptor agonists. This study differs from previous observational studies by including both exenatide and liraglutide and follow-up time is expected to be longer in the current study (2005 - 2011).

This study will be a retrospective cohort study conducted in the Truven (Thomson Reuters) commercial health insurance database from 2005-2011.

Being tested
The GLP-1 receptor agonist users, DPP-4 inhibitor users, Other ADA users
Keywords
utilization, acute pancreatitis, Exenatide, DPP-4 inhibitors, liraglutide, GLP-1 receptor agonist, adherence
Medical subject headings
Diabetes Mellitus, Type 2, Patient Acceptance of Health Care, Pancreatitis

What participants receive

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

  • The GLP-1 receptor agonist usersOther

    The GLP-1 receptor agonist users are classified based on the receipt of a GLP-1 receptor agonist at the index date. GLP-1 receptor agonists included in this study are exenatide and liraglutide

  • DPP-4 inhibitor usersOther

    DPP-4 inhibitor users are classified based on the receipt of a DPP-4 inhibitor prescription at the index date. The DPP-4 inhibitors included in this study are sitagliptin, saxagliptin, linagliptin, combination of sitagliptin and metformin (Janumet), and combination of sitagliptin and simvastatin (Juvisync)

  • Other ADA usersOther

    Classes of ADA's other than GLP-1 receptor agonists and DPP-4 inhibitors will be included in the 'other ADA' exposure group

Study groups in NCT01767389
Study groupRoleWhat they receive
Type 2 diabetes patients taking antidiabetic agentsSubjects should also have at least 1 claim of T2D diagnosis identified using ICD-9 codes 250.x0 or 250.x2 (excluding 250.x1 and/or 250.x3 - Type 1 diabetes and 648.0x - gestational diabetes).
Receives: Other: The GLP-1 receptor agonist users; Other: DPP-4 inhibitor users; Other: Other ADA users

What is being measured

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

  1. For treatment utilization patterns: adherence will be assessed.

    For acute pancreatitis: the study outcome will be the first incidence of acute pancreatitis identified by the ICD-9 code of 577.0 listed as a primary discharge diagnosis on a hospitalization claim. Adherence to GLP-1 receptor agonists, DPP-4 inhibitors and other ADAs will be measured by Medication Possession Ratio (MPR). MPR will be calculated at the class-level for each of the classes of ADA until one of the censoring events.

    Measured: 6 years

  2. For treatment utilization patterns: source of the index ADA (add-on, switch or new therapy) will be assessed.

    Measured: 6 years

  3. For treatment utilization patterns: treatment modification (discontinuation of the index ADA, switching of the index and concomitant ADA, and add-on therapy) will be assessed.

    Measured: 6 years

Timeline

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

  1. First posted14 Jan 2013 (estimated)
  2. Study startSep 2012
  3. Primary completionDec 2013
  4. Study completionDec 2013

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
1 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01767389
Sponsor's protocol ID
200065
Other IDs
WEUSKOP6477
Status last verified
Jul 2014
First submitted
4 Jan 2013
Last updated
4 Aug 2014
Results posted
No
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

An observational study of Diabetes Mellitus, Type 2, run by GlaxoSmithKline.

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 3 inclusion and 1 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 4 Aug 2014. 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?

For treatment utilization patterns: adherence will be assessed. (time frame: 6 years). The study lists 3 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 4 Aug 2014; AzTrials last refreshed its copy on 30 Oct 2026.

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