ClinicalTrials.gg
CompletedNCT04295005Updated Aug 30, 2024Results posted

A Study Based on Data From German Sick Funds That Looks at the Costs of Treatment of Type-2 Diabetic Patients With Empagliflozin vs. DPP-4 Inhibitors vs. GLP-1 Receptor Agonists

An observational study in Diabetes Mellitus, Type 2, sponsored by Boehringer Ingelheim. Completed at 1 site in Germany. Per ClinicalTrials.gov, last updated 2024-08-30.

Sponsored by Boehringer Ingelheim · Observational

Study type
Observational
Model
Cohort
Time perspective
Retrospective
Enrollment
24,500
Sex
All
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Study summary

Empagliflozin vs. Dipeptidyl Peptidase 4 (DPP-4) Inhibitors and Glucagon-like Peptide-1 Receptor Agonists (GLP-1-RA) Cost of Care Study: a German claims data analysis

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Conditions studied

  • Diabetes Mellitus, Type 2
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In context

Diabetes Mellitus, Type 2

9,589 studies on the registry are indexed under Diabetes Mellitus, Type 2; 1,332 are open to participants now.

This study's enrollment of 24,500 is above the median of 300 across 1,622 observational studies indexed under Diabetes Mellitus, Type 2.

Browse Diabetes Mellitus, Type 2 studies →

Lead sponsor

Boehringer Ingelheim is the lead sponsor of 2,297 studies on the registry; 56 are open to participants now.

Of its 166 completed or terminated interventional studies of FDA-regulated products, 121 (73%) 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
Probability sample

Study population

Type 2 diabetes mellitus (T2DM) patients who have been treated with either Empagliflozin, DPP-4i /Sitagliptin or GLP-1-RA (new users only, at least one prescription).

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Continuous insurance by the sickness fund for the entire period (01/01/2014 - 31/12/2018; death of a patient is the only accepted exception from this rule)
  • At least two outpatient T2DM diagnoses (ICD E11.-) in two different quarters and/or at least one inpatient T2DM diagnosis (ICD E11.-) in the period 01/01/2014 to 31/12/2016, but before or on index date (i.e. first Empagliflozin or DPP-4i /Sitagliptin prescription).
  • At least one prescription of Empagliflozin or a DPP-4i /Sitagliptin in the inclusion period (01/01/2015 - 31/12/2016)

Exclusion criteria

Exclusion Criteria:

  • At least one prescription of a sodium glucose transporter 2 inhibitor (SGLT-2i), DPP-4i or GLP-1-RA in the baseline period (01/01/2014 - 31/12/2014)

    • During follow-up, patients will be censored if they switch to any SGLT-2i, DPP-4i or GLP-1-RA or initiate a concomitant use of any SGLT-2i, DPP-4i or GLP-1-RA (free or fixed-dose combinations).
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Study design

Observational model
Cohort
Time perspective
Retrospective
Enrollment
24,500 participants (actual)
Patient registry
No

Groups and cohorts

  • All patients who started an Empagliflozin therapy

    All participants who met the inclusion criteria and none of the exclusion criteria of this study, who had at least two outpatient diagnoses and/or one inpatient diagnosis of Type 2 diabetes mellitus (T2DM) and received at least one outpatient prescription with Empagliflozin (EMPA) between 2015 - 2018 from the Gesellschaft für Qualität und Wirtschaftlichkeit bei Krankenkassen (GWQ) dataset.

    Drug: Empagliflozin

  • All patients who started a DPP-4 inhibitor (specifically Sitagliptin) therapy

    All participants who met the inclusion criteria and none of the exclusion criteria of this study, who had at least two outpatient diagnoses and/or one inpatient diagnosis of Type 2 diabetes mellitus (T2DM) and received at least one outpatient prescription with Dipeptidyl peptidase 4 (DPP-4) inhibitor (DPP-4i) (specifically Sitagliptin) between 2015 - 2018 from the Gesellschaft für Qualität und Wirtschaftlichkeit bei Krankenkassen (GWQ) dataset.

    Drug: DPP-4i

  • All patients who started a GLP-1 receptor agonist therapy

    All participants who met the inclusion criteria and none of the exclusion criteria of this study, who had at least two outpatient diagnoses and/or one inpatient diagnosis of Type 2 diabetes mellitus (T2DM) and received at least one outpatient prescription with Glucagon-like peptide-1 (GLP-1) receptor agonist (GLP-1-RA) between 2015 - 2018 from the Gesellschaft für Qualität und Wirtschaftlichkeit bei Krankenkassen (GWQ) dataset.

    Drug: GLP-1-RA

Interventions

  • film coated tablet

  • DrugDPP-4i

    film coated tablets, specifically Sitagliptin

  • DrugGLP-1-RA

    subcutaneous injection or tablet

06

What researchers measure

Primary outcomes

  1. Direct Healthcare Cost

    The direct healthcare cost is reported, including inpatient cost, outpatient cost, medication cost, and total cost. Patients starting Empagliflozin (EMPA) versus either Dipeptidyl peptidase 4 inhibitor (DPP-4i), Sitagliptin (SITA) or Glucagon-like peptide-1 receptor agonist (GLP-1-RA) were matched 1:1 based on a propensity score using a nearest-neighbor matching algorithm without replacement and a maximum caliper of 0.001. The propensity scores were derived by logistic regression models estimating the probability of a patient belonging to the different treatment groups (three estimations: EMPA versus DPP-4i, EMPA versus SITA, and EMPA versus GLP-1-RA). The cost per observed patient year is calculated as the sum of the cost/ sum of the observed time \[year\] over all patients. Final values were rounded to the nearest digit.

    Time frame: Dataset included all adult persons, who were continuously insured between 01 january 2014 until 31 december 2018 (except for death), approximately a 4 year period.

  2. Healthcare Resource Utilization

    Healthcare resource utilization includes hospitalizations, hospital stays. outpatient visits, and rehabilitation stays.

    Time frame: Dataset included all adult persons, who were continuously insured between 01 january 2014 until 31 december 2018 (except for death), approximately a 4 year period.

Secondary outcomes

  1. Indirect Healthcare Costs (Including Indirect Costs of Days Absent From Work)

    Indirect healthcare costs (including indirect costs of days absent from work) includes indirect costs for hospitalization, outpatient visits, absent from work, and rehabilitation stays.

    Time frame: Dataset included all adult persons, who were continuously insured between 01 january 2014 until 31 december 2018 (except for death), approximately a 4 year period.

07

Results

Posted Aug 30, 2024
Limitations and caveats
Relevant data for the outcome measure were not collected in the GMQ dataset. The general reason for missing data in GWQ´s dataset is insufficient data quality. First, coding-quality of out-patient diagnoses in Germany is heterogenous and generally low. Second, data from GWQ´s individual sickness funds highly differ in size, structure, and quality of specific items. Due to this, GWQ´s quality assurance decided not to integrate several sub-datasets into GWQ´s dataset.

Participant flow

This retrospective study was to compare healthcare cost associated with different antidiabetic drug treatments among the incident users of Empagliflozin (EMPA), any Dipeptidyl peptidase 4 inhibitor (DPP-4i) (specifically Sitagliptin) or any Glucagon-like peptide-1 receptor agonist (GLP-1-RA), based on data covering 2015 - 2018 from Gesellschaft für Qualität und Wirtschaftlichkeit bei Krankenkassen (GWQ) dataset.

Participant flow — Overall Study
MilestoneAll Patients Who Started an Empagliflozin TherapyAll Patients Who Started a DPP-4 Inhibitor (Specifically Sitagliptin) TherapyAll Patients Who Started a GLP-1 Receptor Agonist Therapy
Started3285194331747
Patients who started a sitagliptin therapy0183820
Completed3285194331747
Not completed000

Outcome measures

PrimaryDirect Healthcare Cost

The direct healthcare cost is reported, including inpatient cost, outpatient cost, medication cost, and total cost. Patients starting Empagliflozin (EMPA) versus either Dipeptidyl peptidase 4 inhibitor (DPP-4i), Sitagliptin (SITA) or Glucagon-like peptide-1 receptor agonist (GLP-1-RA) were matched 1:1 based on a propensity score using a nearest-neighbor matching algorithm without replacement and a maximum caliper of 0.001. The propensity scores were derived by logistic regression models estimating the probability of a patient belonging to the different treatment groups (three estimations: EMPA versus DPP-4i, EMPA versus SITA, and EMPA versus GLP-1-RA). The cost per observed patient year is calculated as the sum of the cost/ sum of the observed time \[year\] over all patients. Final values were rounded to the nearest digit.

Time frame:
Dataset included all adult persons, who were continuously insured between 01 january 2014 until 31 december 2018 (except for death), approximately a 4 year period.
Reported as:
Mean · Euro / patient-year
Direct Healthcare Cost
Euro / patient-yearEmpagliflozin (Matched to Dipeptidyl Peptidase 4 Inhibitor (DPP-4i))Dipeptidyl Peptidase 4 Inhibitor (DPP-4i) (Matched)Empagliflozin (Matched to Sitagliptin (SITA))Sitagliptin (SITA) (Matched)Empagliflozin (Matched to Glucagon-like Peptide-1 Receptor Agonist (GLP-1-RA))Glucagon-like Peptide-1 Receptor Agonist (GLP-1-RA) (Matched)
Total4247 (3982 to 4566)7009 (6573 to 7445)4319 (4024 to 4614)6535 (6150 to 6920)4895 (4345 to 5445)6851 (6183 to 7518)
Inpatient1455 (1230 to 1680)3040 (2698 to 3382)1486 (1260 to 1713)2806 (2491 to 3121)1546 (1099 to 1922)2094 (1552 to 2637)
Outpatient853 (814 to 892)1280 (1197 to 1363)863 (824 to 902)1213 (1165 to 1260)917 (854 to 980)1181 (1103 to 1258)
Medication1966 (1826 to 2107)2689 (2522 to 2855)1970 (1830 to 2110)2516 (2379 to 2653)2433 (2189 to 2677)3575 (3331 to 3819)
Statistical analysis
  • Empagliflozin (Matched to Dipeptidyl Peptidase 4 Inhibitor (DPP-4i)) vs Dipeptidyl Peptidase 4 Inhibitor (DPP-4i) (Matched) · Bang and Tsiatis · p = < 0.001
  • Empagliflozin (Matched to Sitagliptin (SITA)) vs Sitagliptin (SITA) (Matched) · Bang and Tsiatis · p = < 0.001
  • Empagliflozin (Matched to Glucagon-like Peptide-1 Receptor Agonist (GLP-1-RA)) vs Glucagon-like Peptide-1 Receptor Agonist (GLP-1-RA) (Matched) · Bang and Tsiatis · p = < 0.001
  • Empagliflozin (Matched to Dipeptidyl Peptidase 4 Inhibitor (DPP-4i)) vs Dipeptidyl Peptidase 4 Inhibitor (DPP-4i) (Matched) · Bang and Tsiatis · p = < 0.001
  • Empagliflozin (Matched to Sitagliptin (SITA)) vs Sitagliptin (SITA) (Matched) · Bang and Tsiatis · p = < 0.001
  • Empagliflozin (Matched to Glucagon-like Peptide-1 Receptor Agonist (GLP-1-RA)) vs Glucagon-like Peptide-1 Receptor Agonist (GLP-1-RA) (Matched) · Bang and Tsiatis · p = 0.126
  • Empagliflozin (Matched to Dipeptidyl Peptidase 4 Inhibitor (DPP-4i)) vs Dipeptidyl Peptidase 4 Inhibitor (DPP-4i) (Matched) · Bang and Tsiatis · p = < 0.001
  • Empagliflozin (Matched to Sitagliptin (SITA)) vs Sitagliptin (SITA) (Matched) · Bang and Tsiatis · p = < 0.001
  • Empagliflozin (Matched to Glucagon-like Peptide-1 Receptor Agonist (GLP-1-RA)) vs Glucagon-like Peptide-1 Receptor Agonist (GLP-1-RA) (Matched) · Bang and Tsiatis · p = < 0.001
  • Empagliflozin (Matched to Dipeptidyl Peptidase 4 Inhibitor (DPP-4i)) vs Dipeptidyl Peptidase 4 Inhibitor (DPP-4i) (Matched) · Bang and Tsiatis · p = < 0.001
  • Empagliflozin (Matched to Sitagliptin (SITA)) vs Sitagliptin (SITA) (Matched) · Bang and Tsiatis · p = < 0.001
  • Empagliflozin (Matched to Glucagon-like Peptide-1 Receptor Agonist (GLP-1-RA)) vs Glucagon-like Peptide-1 Receptor Agonist (GLP-1-RA) (Matched) · Bang and Tsiatis · p = < 0.001
PrimaryHealthcare Resource Utilization

Healthcare resource utilization includes hospitalizations, hospital stays. outpatient visits, and rehabilitation stays.

Time frame:
Dataset included all adult persons, who were continuously insured between 01 january 2014 until 31 december 2018 (except for death), approximately a 4 year period.

No measurements were reported for this outcome.

SecondaryIndirect Healthcare Costs (Including Indirect Costs of Days Absent From Work)

Indirect healthcare costs (including indirect costs of days absent from work) includes indirect costs for hospitalization, outpatient visits, absent from work, and rehabilitation stays.

Time frame:
Dataset included all adult persons, who were continuously insured between 01 january 2014 until 31 december 2018 (except for death), approximately a 4 year period.

No measurements were reported for this outcome.

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
All Patients Who Started an Empagliflozin Therapy———
All Patients Who Started a DPP-4 Inhibitor (Specifically Sitagliptin) Therapy———
All Patients Who Started a GLP-1 Receptor Agonist Therapy———

Baseline characteristics

All eligible participants in this study.

Age, Continuous
Age, Continuous(Years)All Patients Who Started an Empagliflozin TherapyAll Patients Who Started a DPP-4 Inhibitor (Specifically Sitagliptin) TherapyAll Patients Who Started a GLP-1 Receptor Agonist TherapyTotal
Mean60.0 ± 11.063.3 ± 12.655.0 ± 12.062.3 ± 13.4
Sex: Female, Male
Sex: Female, Male(Participants)All Patients Who Started an Empagliflozin TherapyAll Patients Who Started a DPP-4 Inhibitor (Specifically Sitagliptin) TherapyAll Patients Who Started a GLP-1 Receptor Agonist TherapyTotal
Female111077057549569
Male21751172899314896
Race and Ethnicity Not Collected
Race and Ethnicity Not Collected(Participants)All Patients Who Started an Empagliflozin TherapyAll Patients Who Started a DPP-4 Inhibitor (Specifically Sitagliptin) TherapyAll Patients Who Started a GLP-1 Receptor Agonist TherapyTotal
Count of participants———0
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Study locations

1 site
  • Boehringer Ingelheim
    Ingelheim, 55216, Germany
09

References and documents

Related links

Study documents

  • Protocol and statistical analysis plan · Jan 20, 2020

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No — Clinical studies sponsored by Boehringer Ingelheim, phases I to IV, interventional and non-interventional, are in scope for sharing of the raw clinical study data and clinical study documents. Exceptions might apply, e.g. studies in products where Boehringer Ingelheim is not the license holder; studies regarding pharmaceutical formulations and associated analytical methods, and studies pertinent to pharmacokinetics using human biomaterials; studies conducted in a single center or targeting rare diseases (in case of low number of patients and therefore limitations with anonymization). For more details refer to: https://www.mystudywindow.com/msw/datatransparency

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Aug 30, 2024, 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
NCT04295005
Responsible party
Sponsor
First posted
Mar 4, 2020
Start date
Nov 16, 2020
Primary completion
Sep 30, 2021
Completion
Sep 30, 2021
Results posted
Aug 30, 2024
Last update
Aug 30, 2024

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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