Trial Outcomes & Findings for Efficacy and Safety of Linagliptin (BI 1356) in Black/African Americans With Type 2 Diabetes With a MTT Sub-study (NCT NCT01194830)

NCT ID: NCT01194830

Last Updated: 2014-01-29

Results Overview

Glycosylated hemoglobin is reported as a percentage of the total hemoglobin

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

234 participants

Primary outcome timeframe

baseline, 24 weeks

Results posted on

2014-01-29

Participant Flow

Participant milestones

Participant milestones
Measure
Placebo Tablet
Placebo matching linagliptin 5 mg tablet
Linagliptin 5 mg Tablet
Linagliptin 5 mg (milligrams) tablet given by mouth once daily
Overall Study
STARTED
124
110
Overall Study
COMPLETED
88
83
Overall Study
NOT COMPLETED
36
27

Reasons for withdrawal

Reasons for withdrawal
Measure
Placebo Tablet
Placebo matching linagliptin 5 mg tablet
Linagliptin 5 mg Tablet
Linagliptin 5 mg (milligrams) tablet given by mouth once daily
Overall Study
Adverse Event
3
2
Overall Study
Protocol Violation
5
4
Overall Study
Lost to Follow-up
9
7
Overall Study
Withdrawal by Subject
2
1
Overall Study
Lack of Efficacy
1
1
Overall Study
Non-compliance issues
4
4
Overall Study
Other Reason
12
8

Baseline Characteristics

Efficacy and Safety of Linagliptin (BI 1356) in Black/African Americans With Type 2 Diabetes With a MTT Sub-study

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Placebo Tablet
n=120 Participants
Placebo matching linagliptin 5 mg tablet
Linagliptin 5 mg Tablet
n=106 Participants
Linagliptin 5 mg (milligrams) tablet given by mouth once daily
Total
n=226 Participants
Total of all reporting groups
Age, Continuous
54.1 years
STANDARD_DEVIATION 9.9 • n=5 Participants
53.7 years
STANDARD_DEVIATION 10.1 • n=7 Participants
53.9 years
STANDARD_DEVIATION 9.9 • n=5 Participants
Age, Customized
< 65 years
104 Number of participants
n=5 Participants
89 Number of participants
n=7 Participants
193 Number of participants
n=5 Participants
Age, Customized
65 to 74 years
12 Number of participants
n=5 Participants
14 Number of participants
n=7 Participants
26 Number of participants
n=5 Participants
Age, Customized
>= 75 years
4 Number of participants
n=5 Participants
3 Number of participants
n=7 Participants
7 Number of participants
n=5 Participants
Sex: Female, Male
Female
59 Participants
n=5 Participants
46 Participants
n=7 Participants
105 Participants
n=5 Participants
Sex: Female, Male
Male
61 Participants
n=5 Participants
60 Participants
n=7 Participants
121 Participants
n=5 Participants
Weight
99.02 kilograms
STANDARD_DEVIATION 20.16 • n=5 Participants
95.83 kilograms
STANDARD_DEVIATION 20.96 • n=7 Participants
97.52 kilograms
STANDARD_DEVIATION 20.55 • n=5 Participants
Weight categories
<= 70 kilograms
2 Number of participants
n=5 Participants
8 Number of participants
n=7 Participants
10 Number of participants
n=5 Participants
Weight categories
> 70 to 80 kilograms
21 Number of participants
n=5 Participants
18 Number of participants
n=7 Participants
39 Number of participants
n=5 Participants
Weight categories
> 80 to 90 kilograms
25 Number of participants
n=5 Participants
26 Number of participants
n=7 Participants
51 Number of participants
n=5 Participants
Weight categories
> 90 kilograms
72 Number of participants
n=5 Participants
54 Number of participants
n=7 Participants
126 Number of participants
n=5 Participants
Body Mass Index (BMI)
33.35 kilograms per square meter
STANDARD_DEVIATION 5.36 • n=5 Participants
32.04 kilograms per square meter
STANDARD_DEVIATION 6.10 • n=7 Participants
32.74 kilograms per square meter
STANDARD_DEVIATION 5.74 • n=5 Participants
Body Mass Index (BMI) categories
< 30 kilograms/square meter
33 Number of participants
n=5 Participants
45 Number of participants
n=7 Participants
78 Number of participants
n=5 Participants
Body Mass Index (BMI) categories
>= 30 kilograms/square meter
87 Number of participants
n=5 Participants
61 Number of participants
n=7 Participants
148 Number of participants
n=5 Participants
Height
172.1 centimeters
STANDARD_DEVIATION 10.9 • n=5 Participants
172.8 centimeters
STANDARD_DEVIATION 10.3 • n=7 Participants
172.4 centimeters
STANDARD_DEVIATION 10.6 • n=5 Participants
Waist circumference
111.5 centimeters
STANDARD_DEVIATION 16.7 • n=5 Participants
103.5 centimeters
STANDARD_DEVIATION 20.2 • n=7 Participants
107.7 centimeters
STANDARD_DEVIATION 18.8 • n=5 Participants
Smoking status
Never smoked
82 Number of participants
n=5 Participants
56 Number of participants
n=7 Participants
138 Number of participants
n=5 Participants
Smoking status
Ex-smoker
22 Number of participants
n=5 Participants
21 Number of participants
n=7 Participants
43 Number of participants
n=5 Participants
Smoking status
Currently smokes
16 Number of participants
n=5 Participants
29 Number of participants
n=7 Participants
45 Number of participants
n=5 Participants
Alcohol status
Non drinker
70 Number of participants
n=5 Participants
61 Number of participants
n=7 Participants
131 Number of participants
n=5 Participants
Alcohol status
Drinks - no interference with study
50 Number of participants
n=5 Participants
45 Number of participants
n=7 Participants
95 Number of participants
n=5 Participants
Alcohol status
Drinks - possible interference with study
0 Number of participants
n=5 Participants
0 Number of participants
n=7 Participants
0 Number of participants
n=5 Participants

PRIMARY outcome

Timeframe: baseline, 24 weeks

Population: Full Analysis Set (FAS) includes all randomized patients who received study medication and had both a baseline HbA1c value and an on-treatment HbA1c value. Four subjects in each arm excluded for site non-compliance.

Glycosylated hemoglobin is reported as a percentage of the total hemoglobin

Outcome measures

Outcome measures
Measure
Placebo Tablet
n=105 Participants
Placebo matching linagliptin 5 mg tablet
Linagliptin 5 mg Tablet
n=93 Participants
Linagliptin 5 mg (milligrams) tablet given by mouth once daily
Change From Baseline in HbA1c (Glycosylated Hemoglobin) After 24 Weeks
-0.25 Percentage
Standard Error 0.16
-0.84 Percentage
Standard Error 0.15

SECONDARY outcome

Timeframe: baseline, 6 weeks

Population: Full Analysis Set (FAS) includes all randomized patients who received study medication and had both a baseline HbA1c value and an on-treatment HbA1c value. Four subjects in each arm excluded for site non-compliance.

Glycosylated hemoglobin is reported as a percentage of the total hemoglobin

Outcome measures

Outcome measures
Measure
Placebo Tablet
n=105 Participants
Placebo matching linagliptin 5 mg tablet
Linagliptin 5 mg Tablet
n=93 Participants
Linagliptin 5 mg (milligrams) tablet given by mouth once daily
Change From Baseline in HbA1c (Glycosylated Hemoglobin) After 6 Weeks
-0.22 Percentage
Standard Error 0.10
-0.64 Percentage
Standard Error 0.09

SECONDARY outcome

Timeframe: baseline, 12 weeks

Population: Full Analysis Set (FAS) includes all randomized patients who received study medication and had both a baseline HbA1c value and an on-treatment HbA1c value. Four subjects in each arm excluded for site non-compliance.

Glycosylated hemoglobin is reported as a percentage of the total hemoglobin

Outcome measures

Outcome measures
Measure
Placebo Tablet
n=105 Participants
Placebo matching linagliptin 5 mg tablet
Linagliptin 5 mg Tablet
n=93 Participants
Linagliptin 5 mg (milligrams) tablet given by mouth once daily
Change From Baseline in HbA1c (Glycosylated Hemoglobin) After 12 Weeks
-0.17 Percentage
Standard Error 0.14
-0.72 Percentage
Standard Error 0.13

SECONDARY outcome

Timeframe: baseline, 18 weeks

Population: Full Analysis Set (FAS) includes all randomized patients who received study medication and had both a baseline HbA1c value and an on-treatment HbA1c value. Four subjects in each arm excluded for site non-compliance.

Glycosylated hemoglobin is reported as a percentage of the total hemoglobin

Outcome measures

Outcome measures
Measure
Placebo Tablet
n=105 Participants
Placebo matching linagliptin 5 mg tablet
Linagliptin 5 mg Tablet
n=93 Participants
Linagliptin 5 mg (milligrams) tablet given by mouth once daily
Change From Baseline in HbA1c (Glycosylated Hemoglobin) After 18 Weeks
-0.26 Percentage
Standard Error 0.14
-0.81 Percentage
Standard Error 0.14

SECONDARY outcome

Timeframe: 24 weeks

Population: Full Analysis Set (FAS) includes all randomized patients who received study medication.

Glycosylated hemoglobin is reported as a percentage of the total hemoglobin

Outcome measures

Outcome measures
Measure
Placebo Tablet
n=110 Participants
Placebo matching linagliptin 5 mg tablet
Linagliptin 5 mg Tablet
n=98 Participants
Linagliptin 5 mg (milligrams) tablet given by mouth once daily
Occurrence of Absolute Efficacy Response (HbA1c < 7%) After 24 Weeks
Responder (HbA1c < 7.0%)
10 Participants
26 Participants
Occurrence of Absolute Efficacy Response (HbA1c < 7%) After 24 Weeks
Non-responder (HbA1c >= 7.0%)
100 Participants
72 Participants

SECONDARY outcome

Timeframe: 24 weeks

Population: Full Analysis Set (FAS) includes all randomized patients who received study medication.

Glycosylated hemoglobin is reported as a percentage of the total hemoglobin

Outcome measures

Outcome measures
Measure
Placebo Tablet
n=110 Participants
Placebo matching linagliptin 5 mg tablet
Linagliptin 5 mg Tablet
n=98 Participants
Linagliptin 5 mg (milligrams) tablet given by mouth once daily
Occurrence of Absolute Efficacy Response (HbA1c < 6.5%) After 24 Weeks
Responder (HbA1c < 6.5%)
2 Participants
9 Participants
Occurrence of Absolute Efficacy Response (HbA1c < 6.5%) After 24 Weeks
Non-responder (HbA1c >= 6.5%)
108 Participants
89 Participants

SECONDARY outcome

Timeframe: 24 weeks

Population: Full Analysis Set (FAS) includes all randomized patients who received study medication.

Glycosylated hemoglobin is reported as a percentage of the total hemoglobin

Outcome measures

Outcome measures
Measure
Placebo Tablet
n=110 Participants
Placebo matching linagliptin 5 mg tablet
Linagliptin 5 mg Tablet
n=98 Participants
Linagliptin 5 mg (milligrams) tablet given by mouth once daily
Occurrence of Relative Efficacy Response (Reduction in HbA1c >= 0.5%) After 24 Weeks
Responder (reduction in HbA1c >= 0.5%)
33 Participants
53 Participants
Occurrence of Relative Efficacy Response (Reduction in HbA1c >= 0.5%) After 24 Weeks
Non-responder (reduction in HbA1c < 0.5%)
77 Participants
45 Participants

SECONDARY outcome

Timeframe: baseline, 24 weeks

Population: Full Analysis Set (FAS) includes all randomized patients who received study medication and had both a baseline FPG value and an on-treatment FPG value.

Outcome measures

Outcome measures
Measure
Placebo Tablet
n=106 Participants
Placebo matching linagliptin 5 mg tablet
Linagliptin 5 mg Tablet
n=95 Participants
Linagliptin 5 mg (milligrams) tablet given by mouth once daily
Change From Baseline in Fasting Plasma Glucose (FPG) After 24 Weeks
-11.0 mg/dL (milligrams per deciliter)
Standard Error 6.6
-22.9 mg/dL (milligrams per deciliter)
Standard Error 6.4

SECONDARY outcome

Timeframe: baseline, 24 weeks

Population: Meal Tolerance Test, observed cases data set (MTT-OC) includes all randomized patients who participated in the MTT sub-study. Patients required to have both baseline and on-treatment results.

Outcome measures

Outcome measures
Measure
Placebo Tablet
n=11 Participants
Placebo matching linagliptin 5 mg tablet
Linagliptin 5 mg Tablet
n=10 Participants
Linagliptin 5 mg (milligrams) tablet given by mouth once daily
Change From Baseline in 2-hour Post-prandial Glucose (PPG) After 24 Weeks
-36.77 mg/dL (milligrams per deciliter)
Standard Error 23.76
-38.74 mg/dL (milligrams per deciliter)
Standard Error 22.77

Adverse Events

Placebo Tablet

Serious events: 2 serious events
Other events: 15 other events
Deaths: 0 deaths

Linagliptin 5 mg Tablet

Serious events: 1 serious events
Other events: 9 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Placebo Tablet
n=120 participants at risk
Placebo matching linagliptin 5 mg tablet
Linagliptin 5 mg Tablet
n=106 participants at risk
Linagliptin 5 mg (milligrams) tablet given by mouth once daily
Cardiac disorders
Acute myocardial infarction
0.00%
0/120 • 24 weeks (from day of first dose until 7 days after last dose)
Four subjects in each treatment arm were excluded due to site non-compliance issues.
0.94%
1/106 • 24 weeks (from day of first dose until 7 days after last dose)
Four subjects in each treatment arm were excluded due to site non-compliance issues.
Immune system disorders
Food allergy
0.83%
1/120 • 24 weeks (from day of first dose until 7 days after last dose)
Four subjects in each treatment arm were excluded due to site non-compliance issues.
0.00%
0/106 • 24 weeks (from day of first dose until 7 days after last dose)
Four subjects in each treatment arm were excluded due to site non-compliance issues.
Infections and infestations
Bronchitis
0.00%
0/120 • 24 weeks (from day of first dose until 7 days after last dose)
Four subjects in each treatment arm were excluded due to site non-compliance issues.
0.94%
1/106 • 24 weeks (from day of first dose until 7 days after last dose)
Four subjects in each treatment arm were excluded due to site non-compliance issues.
Infections and infestations
Pneumonia
0.83%
1/120 • 24 weeks (from day of first dose until 7 days after last dose)
Four subjects in each treatment arm were excluded due to site non-compliance issues.
0.00%
0/106 • 24 weeks (from day of first dose until 7 days after last dose)
Four subjects in each treatment arm were excluded due to site non-compliance issues.
Musculoskeletal and connective tissue disorders
Musculoskeletal chest pain
0.83%
1/120 • 24 weeks (from day of first dose until 7 days after last dose)
Four subjects in each treatment arm were excluded due to site non-compliance issues.
0.00%
0/106 • 24 weeks (from day of first dose until 7 days after last dose)
Four subjects in each treatment arm were excluded due to site non-compliance issues.
Skin and subcutaneous tissue disorders
Angioedema
0.83%
1/120 • 24 weeks (from day of first dose until 7 days after last dose)
Four subjects in each treatment arm were excluded due to site non-compliance issues.
0.00%
0/106 • 24 weeks (from day of first dose until 7 days after last dose)
Four subjects in each treatment arm were excluded due to site non-compliance issues.

Other adverse events

Other adverse events
Measure
Placebo Tablet
n=120 participants at risk
Placebo matching linagliptin 5 mg tablet
Linagliptin 5 mg Tablet
n=106 participants at risk
Linagliptin 5 mg (milligrams) tablet given by mouth once daily
Infections and infestations
Urinary tract infection
3.3%
4/120 • 24 weeks (from day of first dose until 7 days after last dose)
Four subjects in each treatment arm were excluded due to site non-compliance issues.
6.6%
7/106 • 24 weeks (from day of first dose until 7 days after last dose)
Four subjects in each treatment arm were excluded due to site non-compliance issues.
Metabolism and nutrition disorders
Hyperglycaemia
9.2%
11/120 • 24 weeks (from day of first dose until 7 days after last dose)
Four subjects in each treatment arm were excluded due to site non-compliance issues.
2.8%
3/106 • 24 weeks (from day of first dose until 7 days after last dose)
Four subjects in each treatment arm were excluded due to site non-compliance issues.

Additional Information

Boehringer Ingelheim Call Center

Boehringer Ingelheim Pharmaceuticals

Phone: 1-800-243-0127

Results disclosure agreements

  • Principal investigator is a sponsor employee Any publication of the result of this trial must be consistent with the Boehringer Ingelheim publication policy. The rights of the investigator and of the sponsor with regard to publication of the results of this trial are described in the investigator contract.
  • Publication restrictions are in place

Restriction type: OTHER