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Safety and Efficacy in Type 2 Diabetic Patients With Severe Chronic Renal Impairment, 5 mg BI 1356 (Linagliptin) vs. Placebo, Insulin Background Inclusive

Safety in Type 2 Diabetic Patients With Severe Chronic Renal Impairment, 5 mg BI 1356 vs. Placebo, DB, Parallel Group, Randomized, Insulin Background Inclusive

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00800683
Enrollment
133
Registered
2008-12-02
Start date
2008-12-31
Completion date
Unknown
Last updated
2014-05-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diabetes Mellitus, Type 2

Brief summary

to determine safety, efficacy and tolerability of BI 1356 versus placebo

Interventions

BI 1356 dosed once daily

DRUGplacebo

placebo matching BI 1356 taken once daily

Sponsors

Boehringer Ingelheim
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Male and female patients with type 2 diabetes and with glomerular filtration rate (GFR) \<30 ml/min, who are not on chronic dialysis. * Insufficient glycemic control (hemoglobin A1c (HbA1c) between 7.0% and 10.0%) * Age 18 or over and not older than 80 years

Exclusion criteria

* Treatment with any other anti diabetic drug other than insulin and/or sulphonylurea within 3 months prior to informed consent * Myocardial infarction, stroke or transient ischemic attack (TIA) within 6 months prior to informed consent * Unstable or acute congestive heart failure

Design outcomes

Primary

MeasureTime frameDescription
HbA1c Change From Baseline at Week 12Baseline and Week 12HbA1c is measured as a Percent. Thus, this change from baseline reflects the Week 12 HbA1c percent minus the baseline HbA1c percent. Means are treatment adjusted for baseline continuous HbA1c , creatinine clearance at baseline and previous anti-diabetic medication.

Secondary

MeasureTime frameDescription
HbA1c Change From Baseline at Week 18Baseline and Week 18HbA1c is measured as a Percent. Thus, this change from baseline reflects the Week 18 HbA1c percent minus the baseline HbA1c percent. Means are treatment adjusted for continuous baseline HbA1c , creatinine clearance at baseline and previous anti-diabetic medication.
HbA1c Change From Baseline at Week 24Baseline and Week 24HbA1c is measured as a Percent. Thus, this change from baseline reflects the Week 24 HbA1c percent minus the baseline HbA1c percent. Means are treatment adjusted for continuous baseline HbA1c , creatinine clearance at baseline and previous anti-diabetic medication.
HbA1c Change From Baseline at Week 30Baseline and Week 30HbA1c is measured as a Percent. Thus, this change from baseline reflects the Week 30 HbA1c percent minus the baseline HbA1c percent. Means are treatment adjusted for continuous baseline HbA1c , creatinine clearance at baseline and previous anti-diabetic medication.
HbA1c Change From Baseline at Week 36Baseline and Week 36HbA1c is measured as a Percent. Thus, this change from baseline reflects the Week 36 HbA1c percent minus the baseline HbA1c percent. Means are treatment adjusted for continuous baseline HbA1c , creatinine clearance at baseline and previous anti-diabetic medication.
HbA1c Change From Baseline at Week 42Baseline and Week 42HbA1c is measured as a Percent. Thus, this change from baseline reflects the Week 42 HbA1c percent minus the baseline HbA1c percent. Means are treatment adjusted for continuous baseline HbA1c , creatinine clearance at baseline and previous anti-diabetic medication.
HbA1c Change From Baseline at Week 48Baseline and Week 48HbA1c is measured as a Percent. Thus, this change from baseline reflects the Week 48 HbA1c percent minus the baseline HbA1c percent. Means are treatment adjusted for continuous baseline HbA1c , creatinine clearance at baseline and previous anti-diabetic medication.
The Occurrence of Treat to Target Efficacy Response, That is an HbA1c Under Treatment of <6.5% After 52 Weeks of TreatmentBaseline and Week 52The percentage of patients with an HbA1c value below 6.5% at week 52 was calculated for each treatment arm. Non-completers were imputed as failure (NCF). Analysis was only performed on patients with baseline HbA1c\>=6.5%
The Occurrence of a Treat to Target Efficacy Response, That is an HbA1c Under Treatment of <7.0% After 52 Weeks of TreatmentBaseline and Week 52The percentage of patients with an HbA1c value below 7.0% at week 52 was calculated for each treatment arm. Non-completers were imputed as failure (NCF). Analysis was only performed on patients with baseline HbA1c\>=7%.
Percentage of Patients With HbA1c Lowering by 0.5% at Week 52Baseline and Week 52The percentage of patients with an HbA1c reduction from baseline \>=0.5% at week 52 was calculated for each treatment arm. Non-completers were imputed as failure (NCF).
HbA1c Change From Baseline at Week 52Baseline and Week 52HbA1c is measured as a Percent. Thus, this change from baseline reflects the Week 52 HbA1c percent minus the baseline HbA1c percent. Means are treatment adjusted for continuous baseline HbA1c , creatinine clearance at baseline and previous anti-diabetic medication.
FPG Change From Baseline at Week 18Baseline and Week 18Model includes treatment, continuous baseline FPG , creatinine clearance , HbA1c and background of anti diabetic drugs
FPG Change From Baseline at Week 24Baseline and Week 24This change from baseline reflects the week 24 FPG minus the baseline FPG. Means are treatment adjusted for continuous baseline FPG , baseline creatinine clearance , baseline HbA1c and background of anti diabetic drugs
FPG Change From Baseline at Week 30Baseline and Week 30This change from baseline reflects the week 30 FPG minus the baseline FPG. Means are treatment adjusted for continuous baseline FPG , baseline creatinine clearance , baseline HbA1c and background of anti diabetic drugs
FPG Change From Baseline at Week 36Baseline and Week 36This change from baseline reflects the week 36 FPG minus the baseline FPG. Means are treatment adjusted for continuous baseline FPG , baseline creatinine clearance , baseline HbA1c and background of anti diabetic drugs
FPG Change From Baseline at Week 42Baseline and Week 42This change from baseline reflects the week 42 FPG minus the baseline FPG. Means are treatment adjusted for continuous baseline FPG , baseline creatinine clearance , baseline HbA1c and background of anti diabetic drugs
FPG Change From Baseline at Week 48Baseline and Week 48This change from baseline reflects the week 48 FPG minus the baseline FPG. Means are treatment adjusted for continuous baseline FPG , baseline creatinine clearance , baseline HbA1c and background of anti diabetic drugs
FPG Change From Baseline at week52Baseline and Week 52This change from baseline reflects the week 52 FPG minus the baseline FPG. Means are treatment adjusted for continuous baseline FPG , baseline creatinine clearance , baseline HbA1c and background of anti diabetic drugs
Change From Baseline in Antidiabetic Background Therapy Dose at 52 Weeks Compared to Baseline and Over TimeBaseline and Week 52Number of patients with at least one change in daily dose, determined by at least a 10% increase in insulin.
Clinically Relevant Drug-related Abnormalities for Blood Chemistry, Pulse Rate, Laboratory Parameters and ECGfirst administration of randomised treatment to ....Clinically relevant drug-related abnormalities for blood chemistry, pulse rate, laboratory parameters and ECG. New abnormal findings or worsening of baseline conditions were reported as adverse events.
FPG Change From Baseline at Week 12Baseline and Week 12This change from baseline reflects the week 12 FPG minus the baseline FPG. Means are treatment adjusted for continuous baseline FPG , creatinine clearance , HbA1c and background of anti diabetic drugs

Countries

Australia, Hong Kong, Israel, New Zealand, Ukraine, United States

Participant flow

Participants by arm

ArmCount
Placebo
Patients randomized to receive treatment with matching placebo
65
Linagliptin (BI 1356)
Patients randomized to receive treatment with Linagliptin 5mg
68
Total133

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event118
Overall StudyLack of Efficacy11
Overall StudyLost to Follow-up31
Overall StudyOther12
Overall StudyWithdrawal by Subject17

Baseline characteristics

CharacteristicPlaceboLinagliptin (BI 1356)Total
Age, Continuous64.9 years
STANDARD_DEVIATION 9.6
64.0 years
STANDARD_DEVIATION 10.9
64.4 years
STANDARD_DEVIATION 10.3
Body Mass Index (BMI) Continuous31.7 kg/m²
STANDARD_DEVIATION 5.9
32.3 kg/m²
STANDARD_DEVIATION 5.9
32.0 kg/m²
STANDARD_DEVIATION 5.8
Fasting plasma glucose (FPG) at baseline160.1 mg/dL
STANDARD_DEVIATION 65.4
149.5 mg/dL
STANDARD_DEVIATION 79.5
154.6 mg/dL
STANDARD_DEVIATION 72.9
Glycosylated haemoglobin (HbA1c) at baseline8.2 percentage
STANDARD_DEVIATION 0.9
8.2 percentage
STANDARD_DEVIATION 1.1
8.2 percentage
STANDARD_DEVIATION 1
Sex: Female, Male
Female
30 Participants23 Participants53 Participants
Sex: Female, Male
Male
35 Participants45 Participants80 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
50 / 6561 / 68
serious
Total, serious adverse events
27 / 6525 / 68

Outcome results

Primary

HbA1c Change From Baseline at Week 12

HbA1c is measured as a Percent. Thus, this change from baseline reflects the Week 12 HbA1c percent minus the baseline HbA1c percent. Means are treatment adjusted for baseline continuous HbA1c , creatinine clearance at baseline and previous anti-diabetic medication.

Time frame: Baseline and Week 12

Population: The Full Analysis Set (FAS) included all treated and randomised participants with a baseline and at least one on-treatment HbA1c measurement available. Last observation carried forward (LOCF) was used as the imputation rule.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboHbA1c Change From Baseline at Week 12-0.15 PercentStandard Error 0.15
Linagliptin (BI 1356)HbA1c Change From Baseline at Week 12-0.76 PercentStandard Error 0.14
Comparison: For patients who received rescue medication during the course of the trial, the Oracle Clinical (OC) technique was utilised for all efficacy endpoints and the values were set to missing after the rescue medication was administered.p-value: <0.000195% CI: [-0.89, -0.31]ANCOVA
Secondary

Change From Baseline in Antidiabetic Background Therapy Dose at 52 Weeks Compared to Baseline and Over Time

Number of patients with at least one change in daily dose, determined by at least a 10% increase in insulin.

Time frame: Baseline and Week 52

Population: Treated Set

ArmMeasureGroupValue (NUMBER)
PlaceboChange From Baseline in Antidiabetic Background Therapy Dose at 52 Weeks Compared to Baseline and Over TimeWeek 1- Week1211 Participants
PlaceboChange From Baseline in Antidiabetic Background Therapy Dose at 52 Weeks Compared to Baseline and Over TimeWeek 12 - Week 5229 Participants
PlaceboChange From Baseline in Antidiabetic Background Therapy Dose at 52 Weeks Compared to Baseline and Over TimeOverall (Baseline -Week 52)33 Participants
Linagliptin (BI 1356)Change From Baseline in Antidiabetic Background Therapy Dose at 52 Weeks Compared to Baseline and Over TimeWeek 1- Week1217 Participants
Linagliptin (BI 1356)Change From Baseline in Antidiabetic Background Therapy Dose at 52 Weeks Compared to Baseline and Over TimeWeek 12 - Week 5224 Participants
Linagliptin (BI 1356)Change From Baseline in Antidiabetic Background Therapy Dose at 52 Weeks Compared to Baseline and Over TimeOverall (Baseline -Week 52)32 Participants
Secondary

Clinically Relevant Drug-related Abnormalities for Blood Chemistry, Pulse Rate, Laboratory Parameters and ECG

Clinically relevant drug-related abnormalities for blood chemistry, pulse rate, laboratory parameters and ECG. New abnormal findings or worsening of baseline conditions were reported as adverse events.

Time frame: first administration of randomised treatment to ....

Population: Clinically relevant drug-related abnormalities for blood chemistry, pulse rate, laboratory parameters and ECG

ArmMeasureGroupValue (NUMBER)
PlaceboClinically Relevant Drug-related Abnormalities for Blood Chemistry, Pulse Rate, Laboratory Parameters and ECGBlood amylase increased1 participants
PlaceboClinically Relevant Drug-related Abnormalities for Blood Chemistry, Pulse Rate, Laboratory Parameters and ECGBlood creatine phosphokinase increased1 participants
PlaceboClinically Relevant Drug-related Abnormalities for Blood Chemistry, Pulse Rate, Laboratory Parameters and ECGBlood creatine phosphokinase MB increased1 participants
PlaceboClinically Relevant Drug-related Abnormalities for Blood Chemistry, Pulse Rate, Laboratory Parameters and ECGGlycosylated haemoglobin increased0 participants
PlaceboClinically Relevant Drug-related Abnormalities for Blood Chemistry, Pulse Rate, Laboratory Parameters and ECGCardiac disorders - Tachycardia1 participants
Linagliptin (BI 1356)Clinically Relevant Drug-related Abnormalities for Blood Chemistry, Pulse Rate, Laboratory Parameters and ECGGlycosylated haemoglobin increased1 participants
Linagliptin (BI 1356)Clinically Relevant Drug-related Abnormalities for Blood Chemistry, Pulse Rate, Laboratory Parameters and ECGCardiac disorders - Tachycardia0 participants
Linagliptin (BI 1356)Clinically Relevant Drug-related Abnormalities for Blood Chemistry, Pulse Rate, Laboratory Parameters and ECGBlood amylase increased0 participants
Linagliptin (BI 1356)Clinically Relevant Drug-related Abnormalities for Blood Chemistry, Pulse Rate, Laboratory Parameters and ECGBlood creatine phosphokinase MB increased1 participants
Linagliptin (BI 1356)Clinically Relevant Drug-related Abnormalities for Blood Chemistry, Pulse Rate, Laboratory Parameters and ECGBlood creatine phosphokinase increased2 participants
Secondary

FPG Change From Baseline at Week 12

This change from baseline reflects the week 12 FPG minus the baseline FPG. Means are treatment adjusted for continuous baseline FPG , creatinine clearance , HbA1c and background of anti diabetic drugs

Time frame: Baseline and Week 12

Population: This population includes the FAS using the LOCF imputation, with the further restriction of patients with a baseline and post-baseline FPG value.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboFPG Change From Baseline at Week 12-7.08 mg/dLStandard Error 11.08
Linagliptin (BI 1356)FPG Change From Baseline at Week 12-8.81 mg/dLStandard Error 10.66
p-value: 0.880295% CI: [-24.36, 20.91]ANCOVA
Secondary

FPG Change From Baseline at Week 18

Model includes treatment, continuous baseline FPG , creatinine clearance , HbA1c and background of anti diabetic drugs

Time frame: Baseline and Week 18

Population: This population includes the FAS using the LOCF imputation, with the further restriction of patients with a baseline and post-baseline FPG value.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboFPG Change From Baseline at Week 18-12.72 mg/dLStandard Error 7.94
Linagliptin (BI 1356)FPG Change From Baseline at Week 18-14.97 mg/dLStandard Error 7.64
p-value: 0.784895% CI: [-18.47, 13.98]ANCOVA
Secondary

FPG Change From Baseline at Week 24

This change from baseline reflects the week 24 FPG minus the baseline FPG. Means are treatment adjusted for continuous baseline FPG , baseline creatinine clearance , baseline HbA1c and background of anti diabetic drugs

Time frame: Baseline and Week 24

Population: This population includes the FAS using the LOCF imputation, with the further restriction of patients with a baseline and post-baseline FPG value.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboFPG Change From Baseline at Week 24-6.22 mg/dLStandard Error 7.84
Linagliptin (BI 1356)FPG Change From Baseline at Week 24-16.93 mg/dLStandard Error 7.54
p-value: 0.187895% CI: [-26.74, 5.31]ANCOVA
Secondary

FPG Change From Baseline at Week 30

This change from baseline reflects the week 30 FPG minus the baseline FPG. Means are treatment adjusted for continuous baseline FPG , baseline creatinine clearance , baseline HbA1c and background of anti diabetic drugs

Time frame: Baseline and Week 30

Population: This population includes the FAS using the LOCF imputation, with the further restriction of patients with a baseline and post-baseline FPG value.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboFPG Change From Baseline at Week 30-14.54 mg/dLStandard Error 7.68
Linagliptin (BI 1356)FPG Change From Baseline at Week 30-10.12 mg/dLStandard Error 7.39
p-value: 0.578195% CI: [-11.28, 20.12]ANCOVA
Secondary

FPG Change From Baseline at Week 36

This change from baseline reflects the week 36 FPG minus the baseline FPG. Means are treatment adjusted for continuous baseline FPG , baseline creatinine clearance , baseline HbA1c and background of anti diabetic drugs

Time frame: Baseline and Week 36

Population: This population includes the FAS using the LOCF imputation, with the further restriction of patients with a baseline and post-baseline FPG value.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboFPG Change From Baseline at Week 36-11.29 mg/dLStandard Error 8.53
Linagliptin (BI 1356)FPG Change From Baseline at Week 36-20.53 mg/dLStandard Error 8.2
p-value: 0.295495% CI: [-26.67, 8.18]ANCOVA
Secondary

FPG Change From Baseline at Week 42

This change from baseline reflects the week 42 FPG minus the baseline FPG. Means are treatment adjusted for continuous baseline FPG , baseline creatinine clearance , baseline HbA1c and background of anti diabetic drugs

Time frame: Baseline and Week 42

Population: This population includes the FAS using the LOCF imputation, with the further restriction of patients with a baseline and post-baseline FPG value.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboFPG Change From Baseline at Week 42-13.25 mg/dLStandard Error 8.02
Linagliptin (BI 1356)FPG Change From Baseline at Week 42-8.88 mg/dLStandard Error 7.71
p-value: 0.598495% CI: [-12.02, 20.75]ANCOVA
Secondary

FPG Change From Baseline at Week 48

This change from baseline reflects the week 48 FPG minus the baseline FPG. Means are treatment adjusted for continuous baseline FPG , baseline creatinine clearance , baseline HbA1c and background of anti diabetic drugs

Time frame: Baseline and Week 48

Population: This population includes the FAS using the LOCF imputation, with the further restriction of patients with a baseline and post-baseline FPG value.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboFPG Change From Baseline at Week 48-10.52 mg/dLStandard Error 8.26
Linagliptin (BI 1356)FPG Change From Baseline at Week 48-3.45 mg/dLStandard Error 7.95
p-value: 0.408595% CI: [-9.82, 23.96]ANCOVA
Secondary

FPG Change From Baseline at week52

This change from baseline reflects the week 52 FPG minus the baseline FPG. Means are treatment adjusted for continuous baseline FPG , baseline creatinine clearance , baseline HbA1c and background of anti diabetic drugs

Time frame: Baseline and Week 52

Population: This population includes the FAS using the LOCF imputation, with the further restriction of patients with a baseline and post-baseline FPG value.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboFPG Change From Baseline at week52-6.81 mg/dLStandard Error 7.92
Linagliptin (BI 1356)FPG Change From Baseline at week52-5.47 mg/dLStandard Error 7.62
p-value: 0.869895% CI: [-14.84, 17.52]ANCOVA
Secondary

HbA1c Change From Baseline at Week 18

HbA1c is measured as a Percent. Thus, this change from baseline reflects the Week 18 HbA1c percent minus the baseline HbA1c percent. Means are treatment adjusted for continuous baseline HbA1c , creatinine clearance at baseline and previous anti-diabetic medication.

Time frame: Baseline and Week 18

Population: The Full Analysis Set (FAS) included all treated and randomised participants with a baseline and at least one on-treatment HbA1c measurement available. Last observation carried forward (LOCF) was used as the imputation rule.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboHbA1c Change From Baseline at Week 180.04 PercentStandard Error 0.14
Linagliptin (BI 1356)HbA1c Change From Baseline at Week 18-0.57 PercentStandard Error 0.14
p-value: <0.000195% CI: [-0.9, -0.33]ANCOVA
Secondary

HbA1c Change From Baseline at Week 24

HbA1c is measured as a Percent. Thus, this change from baseline reflects the Week 24 HbA1c percent minus the baseline HbA1c percent. Means are treatment adjusted for continuous baseline HbA1c , creatinine clearance at baseline and previous anti-diabetic medication.

Time frame: Baseline and Week 24

Population: The Full Analysis Set (FAS) included all treated and randomised participants with a baseline and at least one on-treatment HbA1c measurement available. Last observation carried forward (LOCF) was used as the imputation rule.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboHbA1c Change From Baseline at Week 240.04 PercentStandard Error 0.14
Linagliptin (BI 1356)HbA1c Change From Baseline at Week 24-0.64 PercentStandard Error 0.13
p-value: <0.000195% CI: [-0.96, -0.41]ANCOVA
Secondary

HbA1c Change From Baseline at Week 30

HbA1c is measured as a Percent. Thus, this change from baseline reflects the Week 30 HbA1c percent minus the baseline HbA1c percent. Means are treatment adjusted for continuous baseline HbA1c , creatinine clearance at baseline and previous anti-diabetic medication.

Time frame: Baseline and Week 30

Population: The Full Analysis Set (FAS) included all treated and randomised participants with a baseline and at least one on-treatment HbA1c measurement available. Last observation carried forward (LOCF) was used as the imputation rule.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboHbA1c Change From Baseline at Week 300.04 PercentStandard Error 0.16
Linagliptin (BI 1356)HbA1c Change From Baseline at Week 30-0.67 PercentStandard Error 0.16
p-value: <0.000195% CI: [-1.05, -0.39]ANCOVA
Secondary

HbA1c Change From Baseline at Week 36

HbA1c is measured as a Percent. Thus, this change from baseline reflects the Week 36 HbA1c percent minus the baseline HbA1c percent. Means are treatment adjusted for continuous baseline HbA1c , creatinine clearance at baseline and previous anti-diabetic medication.

Time frame: Baseline and Week 36

Population: The Full Analysis Set (FAS) included all treated and randomised participants with a baseline and at least one on-treatment HbA1c measurement available. Last observation carried forward (LOCF) was used as the imputation rule.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboHbA1c Change From Baseline at Week 360.03 PercentStandard Error 0.16
Linagliptin (BI 1356)HbA1c Change From Baseline at Week 36-0.72 PercentStandard Error 0.15
p-value: <0.000195% CI: [-1.06, -0.44]ANCOVA
Secondary

HbA1c Change From Baseline at Week 42

HbA1c is measured as a Percent. Thus, this change from baseline reflects the Week 42 HbA1c percent minus the baseline HbA1c percent. Means are treatment adjusted for continuous baseline HbA1c , creatinine clearance at baseline and previous anti-diabetic medication.

Time frame: Baseline and Week 42

Population: The Full Analysis Set (FAS) included all treated and randomised participants with a baseline and at least one on-treatment HbA1c measurement available. Last observation carried forward (LOCF) was used as the imputation rule.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboHbA1c Change From Baseline at Week 42-0.08 PercentStandard Error 0.16
Linagliptin (BI 1356)HbA1c Change From Baseline at Week 42-0.73 PercentStandard Error 0.15
p-value: <0.000195% CI: [-0.96, -0.33]ANCOVA
Secondary

HbA1c Change From Baseline at Week 48

HbA1c is measured as a Percent. Thus, this change from baseline reflects the Week 48 HbA1c percent minus the baseline HbA1c percent. Means are treatment adjusted for continuous baseline HbA1c , creatinine clearance at baseline and previous anti-diabetic medication.

Time frame: Baseline and Week 48

Population: The Full Analysis Set (FAS) included all treated and randomised participants with a baseline and at least one on-treatment HbA1c measurement available. Last observation carried forward (LOCF) was used as the imputation rule.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboHbA1c Change From Baseline at Week 48-0.04 PercentStandard Error 0.15
Linagliptin (BI 1356)HbA1c Change From Baseline at Week 48-0.77 PercentStandard Error 0.14
p-value: <0.000195% CI: [-1.02, -0.44]ANCOVA
Secondary

HbA1c Change From Baseline at Week 52

HbA1c is measured as a Percent. Thus, this change from baseline reflects the Week 52 HbA1c percent minus the baseline HbA1c percent. Means are treatment adjusted for continuous baseline HbA1c , creatinine clearance at baseline and previous anti-diabetic medication.

Time frame: Baseline and Week 52

Population: The Full Analysis Set (FAS) included all treated and randomised participants with a baseline and at least one on-treatment HbA1c measurement available. Last observation carried forward (LOCF) was used as the imputation rule.

ArmMeasureValue (LEAST_SQUARES_MEAN)Dispersion
PlaceboHbA1c Change From Baseline at Week 520.01 PercentStandard Error 0.16
Linagliptin (BI 1356)HbA1c Change From Baseline at Week 52-0.71 PercentStandard Error 0.15
p-value: <0.000195% CI: [-1.03, -0.41]ANCOVA
Secondary

Percentage of Patients With HbA1c Lowering by 0.5% at Week 52

The percentage of patients with an HbA1c reduction from baseline \>=0.5% at week 52 was calculated for each treatment arm. Non-completers were imputed as failure (NCF).

Time frame: Baseline and Week 52

Population: The Full Analysis Set (FAS) included all patients with a baseline and at least one on treatment HbA1c measurement available. Non-completers were considered as failure imputation (NCF).

ArmMeasureValue (NUMBER)
PlaceboPercentage of Patients With HbA1c Lowering by 0.5% at Week 5211.3 Percentage of patients
Linagliptin (BI 1356)Percentage of Patients With HbA1c Lowering by 0.5% at Week 5227.3 Percentage of patients
Comparison: Linagliptin vs Placebo. The odds-ratio is based on a logistic regression model including baseline HbA1c, previous anti-diabetic medication and creatinine clearancep-value: 0.892795% CI: [0.042, 15.756]Regression, Logistic
Secondary

The Occurrence of a Treat to Target Efficacy Response, That is an HbA1c Under Treatment of <7.0% After 52 Weeks of Treatment

The percentage of patients with an HbA1c value below 7.0% at week 52 was calculated for each treatment arm. Non-completers were imputed as failure (NCF). Analysis was only performed on patients with baseline HbA1c\>=7%.

Time frame: Baseline and Week 52

Population: This population includes the FAS with baseline HbA1c\>=7.0%. Non-completers were considered as failure imputation (NCF).

ArmMeasureValue (NUMBER)
PlaceboThe Occurrence of a Treat to Target Efficacy Response, That is an HbA1c Under Treatment of <7.0% After 52 Weeks of Treatment9.8 Percentage of patients
Linagliptin (BI 1356)The Occurrence of a Treat to Target Efficacy Response, That is an HbA1c Under Treatment of <7.0% After 52 Weeks of Treatment18.0 Percentage of patients
Comparison: Linagliptin vs Placebo. The odds-ratio is based on a logistic regression model including baseline HbA1c, previous anti-diabetic medication and creatinine clearancep-value: 0.222595% CI: [0.003, 3.978]Regression, Logistic
Secondary

The Occurrence of Treat to Target Efficacy Response, That is an HbA1c Under Treatment of <6.5% After 52 Weeks of Treatment

The percentage of patients with an HbA1c value below 6.5% at week 52 was calculated for each treatment arm. Non-completers were imputed as failure (NCF). Analysis was only performed on patients with baseline HbA1c\>=6.5%

Time frame: Baseline and Week 52

Population: This population includes the FAS with baseline HbA1c\>=6.5%. Non-completers were considered as failure imputation (NCF).

ArmMeasureValue (NUMBER)
PlaceboThe Occurrence of Treat to Target Efficacy Response, That is an HbA1c Under Treatment of <6.5% After 52 Weeks of Treatment0 Percentage of patients
Linagliptin (BI 1356)The Occurrence of Treat to Target Efficacy Response, That is an HbA1c Under Treatment of <6.5% After 52 Weeks of Treatment6.1 Percentage of patients
p-value: 0.1199Fisher Exact

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026