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CompletedNCT02695173Updated Dec 7, 2021

Complications of UTI in Patients on Dapagliflozin

An observational study in Severe Complications of Urinary Tract Infections, sponsored by AstraZeneca. Completed at 3 sites in 2 countries. Per ClinicalTrials.gov, last updated 2021-12-07.

Sponsored by AstraZeneca · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
683,380
Sex
All
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Study summary

The objective of this study is to compare, by insulin use at the index date, the sex-specific incidence of hospitalization or emergency department (ED) visit for severe complications of urinary tract infections (UTI), defined as pyelonephritis and urosepsis, among patients with type 2 diabetes mellitus (T2DM) who are new users of dapagliflozin with those who are new users of antidiabetic drugs (ADs) in classes other than sodium-glucose cotransporter 2 (SGLT2) inhibitors, insulin monotherapy, metformin monotherapy, or sulfonylurea monotherapy.

Read the detailed description

The overall goal of this research study is to estimate the sex-specific incidence of hospitalization or emergency department visit for severe complications of urinary tract infections, defined as pyelonephritis and urosepsis, in patients who are prescribed dapagliflozin compared to patients prescribed other specific oral antidiabetic drugs. Dapagliflozin and other antidiabetic drugs are used to treat type 2 diabetes mellitus. Because of the mechanism of action for dapagliflozin and results from small safety monitoring studies, there is interest in further evaluating the safety of dapagliflozin in large populations.

The study will be implemented in three administrative health care data sources in two countries: in the United Kingdom, the Clinical Practice Research Datalink (CPRD); and in the United States, the Centers for Medicare and Medicaid Services (CMS) Medicare databases and the HealthCore Integrated Research Database (HIRDSM). Individuals in the databases will be included in the study if they meet the following age criteria; 18 years and older (CPRD and HIRD), or 65 years or older (Medicare); and if they did not have type 1 diabetes, are new users of one of the study drugs and meet the criteria of at least 180 days of electronic data before their first prescription of the study drug. The study period starts July 1, 2013 in CPRD, January 1, 2014 in PHARMO and January 9, 2014 in the United States data sources, and will end at the latest available data at each database at the time of analysis

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Conditions studied

  • Severe Complications of Urinary Tract Infections
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In context

Infections

6,687 studies on the registry are indexed under Infections; 807 are open to participants now.

This study's enrollment of 683,380 is above the median of 240 across 2,136 observational studies indexed under Infections.

Browse Infections studies →

Lead sponsor

AstraZeneca is the lead sponsor of 3,429 studies on the registry; 270 are open to participants now.

Of its 357 completed or terminated interventional studies of FDA-regulated products, 173 (48%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Patients with type 2 diabetes mellitus who are new users of dapagliflozin with those who are new users of antidiabetic drugs in classes other than SGLT2 inhibitors, insulin monotherapy, metformin monotherapy, or sulfonylurea monotherapy. Up to four comparator subjects will be matched to each dapagliozin user.

Inclusion criteria

  1. 18 years and older (CPRD and HIRD), or 65 years or older (Medicare);
  2. no diagnosisi of type 1 diabetes,
  3. are new users of one of the study drugs and
  4. have at least 180 days of electronic data before their first prescription of the study drug

Exclusion criteria

Exclusion Criteria:

  1. The patient experienced chronic pyelonephritis at any time before the index date (i.e., during the available lookback time).
  2. The patient was prescribed an SGLT2 inhibitor other than dapagliflozin on or before the index date.
  3. The patient initiated metformin or sulfonylurea as AD monotherapy at the index date.
  4. The patient initiated insulin therapy at the index date.
  5. The patient had evidence of type 1 diabetes before cohort entry or first recorded AD is insulin monotherapy
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Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
683,380 participants (actual)
Patient registry
No
06

What researchers measure

Primary outcomes

  1. Incidence of urinary tract infections (UTI) complications

    Patients will be followed from their index date (date of first study drug prescription or dispensing) until they experience one of the following: an event under study, end of time at risk for index medication, death, addition of a non-dapagliflozin SGLT2 inhibitor, termination of health plan or transfer out of the GP practice, or end of the study period (up to six years)

    Time frame: Day after index date up to six years

Secondary outcomes

  1. Incidence of pyelonephritis

    Patients will be followed from their index date (date of first study drug prescription or dispensing) until they experience one of the following: an event under study, end of time at risk for index medication, death, addition of a non-dapagliflozin SGLT2 inhibitor, termination of health plan or transfer out of the GP practice, or end of the study period (up to six years)

    Time frame: Day after index date up to six years

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Study locations

3 sites
  • Research Site
    Wilmington, Delaware, United States
  • Research Site
    Washington, District of Columbia, United States
  • Research Site
    London, United Kingdom
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References and documents

Related links

Individual participant data

Plan to share: Yes — Qualified researchers can request access to anonymized individual patient-level data from AstraZeneca group of companies sponsored clinical trials via the request portal. All request will be evaluated as per the AZ disclosure commitment: https://astrazenecagrouptrials.pharmacm.com/ST/Submission/Disclosure. Yes, indicates that AZ are accepting requests for IPD, but this does not mean all requests will be shared.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 7, 2021, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT02695173
Lead sponsor
AstraZeneca
Responsible party
Sponsor
First posted
Mar 1, 2016
Start date
Jan 1, 2017
Primary completion
Sep 1, 2020
Completion
Nov 30, 2020
Last update
Dec 7, 2021

Study contacts

Catherine Johannes, Dr
principal investigator · RTI Health Solutions

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Nov 2021. You cannot join it, but the record below documents what was studied.

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