Pharmacokinetics of Fixed Dose Combination (FDC) Tablets of Linagliptin /Metformin

Study Overview
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Brief Summary
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The aim of the trial is to assess the relative bioavailability of fixed dose combination tablets of linagliptin and metformin compared to the administration of two single tablets (linagliptin and metformin ) in Chinese subjects. The availability of a fixed dose combination tablet is expected to significantly enhance patients' compliance with antidiabetic treatment., in particular with concern to the frequent polypharmacy in diabetic patients.

Official Title
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Characterisation of Fixed Dose Combination Tablets of Linagliptin 2.5 mg/Metformin 850 mg or Linagliptin 2.5 mg/Metformin 500 mg and Relative Oral Bioavailability Compared With Single Linagliptin 2.5 mg and Metformin 850 mg or 500 mg Tablets Administered Together to Healthy Chinese Male and Female Volunteers in an Open Label, Randomised, Single-dose, Two-way Crossover, Phase I Study

Conditions
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Healthy

Intervention / Treatment
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* Drug: linagliptin/metformin(high dose)
* Drug: Linagliptin/metformin(low dose)


Participation Criteria
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Eligibility Criteria
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Inclusion criteria: 1. Healthy male and female subjects Exclusion criteria: 1. Any relevant deviation from healthy conditions

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 40 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: linagliptin/metformin(high dose)<br>24 subjects (12 male and 12 female) will be assigned to 2 treatment sequences. cross-over design was adopted to ensure each patient would take fixed dose combination tablets of linagliptin /metformin (high dose) and single linagliptin and metformin (high dose) tablets single dose in randomized order | Drug: linagliptin/metformin(high dose)<br>* patient would take fixed dose combination tablets of linagliptin /metformin (high dose) and single linagliptin and metformin (High dose) tablets single dose in random order, and each dosage will be separated in 42 days interval.<br>|
| Experimental: linagliptin/metformin(low dose)<br>24 subjects (12 male and 12 female) will be assigned to 2 treatment sequences. cross-over design was adopted to ensure each patient would take fixed dose combination tablets of linagliptin /metformin (low dose) and single linagliptin and metformin (low dose) tablets single dose in randomized order | Drug: Linagliptin/metformin(low dose)<br>* patient would take fixed dose combination tablets of linagliptin /metformin (low dose) and single linagliptin and metformin (Low dose) tablets single dose in random order, and each dosage will be separated in 42 days interval.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Area Under the Concentration-time Curve of Linagliptin in Plasma Over the Time Interval 0 to 72 Hours (AUC0-72) |  | 1 hour (h) prior to drug administration, 20 minutes (min), 40 min, 1 h, 1 h 30 min, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 34 h, 48 h and 72 h thereafter. | 
| Maximum Measured Concentration (Cmax) of Linagliptin. |  | 1 hour (h) prior to drug administration, 20 minutes (min), 40 min, 1 h, 1 h 30 min, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 34 h, 48 h and 72 h thereafter. | 
| Area Under the Concentration-time Curve of Metformin in Plasma Over the Time Interval 0 to the Last Quantifiable Concentration (AUC0-tz) |  | 1 hour (h) prior to drug administration, 20 minutes (min), 40 min, 1 h, 1 h 30 min, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 34 h, 48 h and 72 h thereafter. | 
| Maximum Measured Concentration (Cmax) of Metformin |  | 1 hour (h) prior to drug administration, 20 minutes (min), 40 min, 1 h, 1 h 30 min, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 34 h, 48 h and 72 h thereafter. | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Area Under the Concentration Time Curve of the Analyte in Plasma Over the Time Interval From 0 Extrapolated to Infinity (AUC0-infinity) for Linagliptin | AUC0-infinity is based on predicted last concentration values. | 1 hour (h) prior to drug administration, 20 minutes (min), 40 min, 1 h, 1 h 30 min, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 34 h, 48 h and 72 h thereafter. | 
| AUC(0-infinity) for Metformin | AUC0-infinity is based on predicted last concentration values. | 1 hour (h) prior to drug administration, 20 minutes (min), 40 min, 1 h, 1 h 30 min, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 34 h, 48 h and 72 h thereafter. | 
| AUC0-tz for Linagliptin |  | 1 hour (h) prior to drug administration, 20 minutes (min), 40 min, 1 h, 1 h 30 min, 2 h, 3 h, 4 h, 6 h, 8 h, 12 h, 24 h, 34 h, 48 h and 72 h thereafter. |