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The Bioequivalence Study of Lamotrigine Dispersible/Chewable Tablets 5mg×5 Compared With Lamotrigine Compressed Tablet 25mg in Chinese Healthy Male Subjects

Primary Purpose

Epilepsy

Status
Completed
Phase
Phase 1
Locations
China
Study Type
Interventional
Intervention
Lamotrigine Dispersible/Chewable tablets 5mg*5
Lamotrigine Compressed tablet 25mg
Sponsored by
GlaxoSmithKline
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Epilepsy

Eligibility Criteria

18 Years - 40 Years (Adult)MaleAccepts Healthy Volunteers

Inclusion Criteria:

  • Healthy male non-smoker, based on medical history and physical examination.
  • 18-40 years old, inclusive.
  • Body weight >50 kg, and result of BMI is between 18.0 and 24.0 kg/m2, inclusive.
  • Capable of returning to study site for follow-up according to the requirement of protocol and willing to comply with the policy, procedure and restriction of the study.
  • Capable of reading and understanding the information listed in the consent form. Signing the informed consent prior to any study related procedure.
  • Results of laboratory tests within the range of reference normal range, or slight abnormality which judged as not clinically significant by investigator.
  • AST, ALT, alkaline phosphatase and total bilirubin =<1.5 x ULN ((total bilirubin >1.5 x ULN alone is acceptable if direct bilirubin <35% of total bilirubin).
  • Normal blood pressure (systolic blood pressure 90-140 mmHg, diastolic blood pressure < 90mmHg) and pulse rate (60-100/min).
  • No clinically significant abnormality on 12-lead ECG.
  • Corrected QT interval < 450 ms; or corrected QT interval < 480 ms for subjects with bundle-branch block.
  • Male subjects with female partners of child-bearing potential must agree to use contraceptive method after first dose of study treatment and until two weeks after the completion of the study.

Exclusion Criteria:

  • Current or chronic history of cardiovascular, respiratory, gastrointestinal, endocrine, hepatic, hematological, psychical or nervous system diseases, use of drug that can change the absorption, metabolism or elimination of study drug, or result in danger or other drugs or diseases that interfere with the interpretation of study data.
  • Personal or familial history of hypersensitivity to lamotrigine or drug with similar chemical composition.
  • Participation in other clinical trial within 30 days prior to enrollment in the study.
  • Use of prescription or non-prescription drugs, including monoamine oxidase inhibitor or herbal drug within 14 days prior to the screening; excluding use of lubricating oil or contraceptive barrier device containing spermicidal agents, and other contraception device.
  • History of abnormality of liver function, abnormal hepatic or biliary system, or positive hepatitis B surface antigen (HBsAg), or positive hepatitis C surface antibody (HCAb) or ALT ≥ 2x upper limit of normal (ULN). Having Gilbert syndrome.
  • Positive serum HIV antibody.
  • Alcohol abuser, defined as alcohol consumption exceeding 3 units/day or 21 units/week. A unit equal to about 240 ml beer, 25 ml spirits or 125 ml wine.
  • Positive drug monitoring at screening.
  • Evidence for obviously active disease of hematological system, or obvious blood loss within 3 months.
  • Blood donation 3 months prior to study.
  • Current or past history of nervous-psychiatric disorder, as assessed by Columbia Suicide Severity Rating Scale-baseline evaluation or in the opinion of investigator that the subject is at risk of suicide or with history of suicide behavior/attempt.
  • Unsuitable for participating in the study according to the law.
  • Unsuitable for participating in the study in the opinion the investigator.

Sites / Locations

  • GSK Investigational Site

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Experimental

Arm Label

Lamotrigine (Lamictal) D/C 5mg*5, Crossover

Lamotrigine (Lamictal) Compressed 25mg, Crossover

Arm Description

Single dose of lamotrigine dispersible/chewable (D/C)5mg*5 tablets at Day1 and Single dose of Lamotrigine Compressed 25mg*1 tablet at Day15

Single dose of lamotrigine compressed 25mg*1 tablet at Day1 and Single dose of lamotrigine dispersible/chewable 5mg*5 tablets at Day15

Outcomes

Primary Outcome Measures

Area under the concentration-time curve from time zero to infinity [AUC(0-inf)], including bioequivalence evaluation
AUC(0-inf) is a measure of systemic drug exposure, which is obtained by collecting a series of blood samples and measuring the concentrations of drug in each sample. AUC(0-inf) is defined as area under the concentration vs. time curve from zero to infinity.
Area under the concentration-time curve up to the last time point at which the concentration is above the lower limit of quantification [AUC(0-t)], including bioequivalence evaluation
AUC(0-t) is a measure of systemic drug exposure, which is obtained by collecting a series of blood samples and measuring the concentrations of drug in each sample. AUC(0-t) is defined as AUC from time 0 to the last data point above the Lower Limit of Quantification.
The observed maximum serum drug concentration (Cmax), including bioequivalence evaluation
Cmax refers to the highest measured drug concentration which is obtained by collecting a series of blood samples and measuring the concentrations of drug in each sample.

Secondary Outcome Measures

Time to reach Cmax (tmax)
Elimination half-time (t½)
Elimination rate constant, linear regression according to linear serum drug concentration-time curve

Full Information

First Posted
June 13, 2013
Last Updated
May 31, 2017
Sponsor
GlaxoSmithKline
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1. Study Identification

Unique Protocol Identification Number
NCT01879423
Brief Title
The Bioequivalence Study of Lamotrigine Dispersible/Chewable Tablets 5mg×5 Compared With Lamotrigine Compressed Tablet 25mg in Chinese Healthy Male Subjects
Official Title
A Single-Dose, Open-Label, Randomized, Two-Period Crossover Study to Demonstrate the Bioequivalence of Lamotrigine Dispersible/Chewable Tablets (5mg×5) and Lamotrigine Compressed Tablet (25mg) in Healthy Chinese Male Subjects.
Study Type
Interventional

2. Study Status

Record Verification Date
May 2017
Overall Recruitment Status
Completed
Study Start Date
April 28, 2013 (Actual)
Primary Completion Date
June 6, 2013 (Actual)
Study Completion Date
June 6, 2013 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
GlaxoSmithKline

4. Oversight

Data Monitoring Committee
No

5. Study Description

Brief Summary
This is a single dose, open-label, randomized, two-period crossover study to demonstrate the bioequivalence of lamotrigine dispersible/chewable tablets (5mg×5) and lamotrigine compressed tablets (25mg) in healthy Chinese male subjects in fasting conditions. The safety, tolerability and pharmacokinetic profile of lamotrigine dispersible/chewable tablets will also be assessed.
Detailed Description
This is a single dose, open-label, randomized, two-period crossover study to demonstrate the bioequivalence of lamotrigine dispersible/chewable tablets (5mg×5) and lamotrigine compressed tablets (25mg) in healthy Chinese male subjects in fasting conditions. 24 healthy Chinese male subjects will be enrolled to provide data from at least 22 evaluable subjects . In Period 1, subjects will be randomized in equal numbers to be dosed with either lamotrigine dispersible/chewable 5mg×5 tablets or lamotrigine compressed tablet 25mg×1. Following a washout of at least 14 days, subjects will be crossed over in Period 2 to receive the treatment that they did not receive in Period 1. Pharmacokinetic blood samples will be collected over 168 hours post dose. Venous blood (2 ml each) is taken immediately before dosing (pre-dose) and 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, 120, 144 and 168 hours post dose to determine the lamotrigine concentration in serum. Drug concentration in serum at different time points will be determined for each subject with a validated bioanalytical method using LC/MS/MS method. The main pharmacokinetic parameters such as Cmax, tmax, AUC(0-inf), AUC(0-t), t1/2, λz, CL/F and Vd/F are calculated for subjects using non-compartment analysis method. Physical examination, electrocardiogram and clinical laboratory tests are conducted at screening and 168 hours after administration of each dose; vital signs are measured at scheduled time; adverse events are recorded throughout the study. Clinically relevant safety measurement values are tabulated to evaluate the safety and tolerability of lamotrigine dispersible/chewable tablet. Safety evaluation lasts up to 168 hours after the second oral administration.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Epilepsy

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 1
Interventional Study Model
Crossover Assignment
Masking
None (Open Label)
Allocation
Randomized
Enrollment
24 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Lamotrigine (Lamictal) D/C 5mg*5, Crossover
Arm Type
Experimental
Arm Description
Single dose of lamotrigine dispersible/chewable (D/C)5mg*5 tablets at Day1 and Single dose of Lamotrigine Compressed 25mg*1 tablet at Day15
Arm Title
Lamotrigine (Lamictal) Compressed 25mg, Crossover
Arm Type
Experimental
Arm Description
Single dose of lamotrigine compressed 25mg*1 tablet at Day1 and Single dose of lamotrigine dispersible/chewable 5mg*5 tablets at Day15
Intervention Type
Drug
Intervention Name(s)
Lamotrigine Dispersible/Chewable tablets 5mg*5
Other Intervention Name(s)
Lamictal
Intervention Description
Single dose of lamotrigine dispersible/chewable 5mg*5 tablets at Day1 and Single dose of Lamotrigine Compressed 25mg*1 tablet at Day15
Intervention Type
Drug
Intervention Name(s)
Lamotrigine Compressed tablet 25mg
Other Intervention Name(s)
Lamictal
Intervention Description
Single dose of lamotrigine compressed 25mg*1 tablet at Day1 and Single dose of lamotrigine dispersible/chewable 5mg*5 tablets at Day15
Primary Outcome Measure Information:
Title
Area under the concentration-time curve from time zero to infinity [AUC(0-inf)], including bioequivalence evaluation
Description
AUC(0-inf) is a measure of systemic drug exposure, which is obtained by collecting a series of blood samples and measuring the concentrations of drug in each sample. AUC(0-inf) is defined as area under the concentration vs. time curve from zero to infinity.
Time Frame
pre-dose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, 120, 144, 168 hours post-dose
Title
Area under the concentration-time curve up to the last time point at which the concentration is above the lower limit of quantification [AUC(0-t)], including bioequivalence evaluation
Description
AUC(0-t) is a measure of systemic drug exposure, which is obtained by collecting a series of blood samples and measuring the concentrations of drug in each sample. AUC(0-t) is defined as AUC from time 0 to the last data point above the Lower Limit of Quantification.
Time Frame
pre-dose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, 120, 144, 168 hours post-dose
Title
The observed maximum serum drug concentration (Cmax), including bioequivalence evaluation
Description
Cmax refers to the highest measured drug concentration which is obtained by collecting a series of blood samples and measuring the concentrations of drug in each sample.
Time Frame
pre-dose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, 120, 144, 168 hours post-dose
Secondary Outcome Measure Information:
Title
Time to reach Cmax (tmax)
Time Frame
pre-dose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, 120, 144, 168 hours post-dose
Title
Elimination half-time (t½)
Time Frame
pre-dose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, 120, 144, 168 hours post-dose
Title
Elimination rate constant, linear regression according to linear serum drug concentration-time curve
Time Frame
pre-dose, 0.5, 1, 1.5, 2, 2.5, 3, 4, 6, 8, 12, 24, 36, 48, 72, 96, 120, 144, 168 hours post-dose

10. Eligibility

Sex
Male
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
40 Years
Accepts Healthy Volunteers
Accepts Healthy Volunteers
Eligibility Criteria
Inclusion Criteria: Healthy male non-smoker, based on medical history and physical examination. 18-40 years old, inclusive. Body weight >50 kg, and result of BMI is between 18.0 and 24.0 kg/m2, inclusive. Capable of returning to study site for follow-up according to the requirement of protocol and willing to comply with the policy, procedure and restriction of the study. Capable of reading and understanding the information listed in the consent form. Signing the informed consent prior to any study related procedure. Results of laboratory tests within the range of reference normal range, or slight abnormality which judged as not clinically significant by investigator. AST, ALT, alkaline phosphatase and total bilirubin =<1.5 x ULN ((total bilirubin >1.5 x ULN alone is acceptable if direct bilirubin <35% of total bilirubin). Normal blood pressure (systolic blood pressure 90-140 mmHg, diastolic blood pressure < 90mmHg) and pulse rate (60-100/min). No clinically significant abnormality on 12-lead ECG. Corrected QT interval < 450 ms; or corrected QT interval < 480 ms for subjects with bundle-branch block. Male subjects with female partners of child-bearing potential must agree to use contraceptive method after first dose of study treatment and until two weeks after the completion of the study. Exclusion Criteria: Current or chronic history of cardiovascular, respiratory, gastrointestinal, endocrine, hepatic, hematological, psychical or nervous system diseases, use of drug that can change the absorption, metabolism or elimination of study drug, or result in danger or other drugs or diseases that interfere with the interpretation of study data. Personal or familial history of hypersensitivity to lamotrigine or drug with similar chemical composition. Participation in other clinical trial within 30 days prior to enrollment in the study. Use of prescription or non-prescription drugs, including monoamine oxidase inhibitor or herbal drug within 14 days prior to the screening; excluding use of lubricating oil or contraceptive barrier device containing spermicidal agents, and other contraception device. History of abnormality of liver function, abnormal hepatic or biliary system, or positive hepatitis B surface antigen (HBsAg), or positive hepatitis C surface antibody (HCAb) or ALT ≥ 2x upper limit of normal (ULN). Having Gilbert syndrome. Positive serum HIV antibody. Alcohol abuser, defined as alcohol consumption exceeding 3 units/day or 21 units/week. A unit equal to about 240 ml beer, 25 ml spirits or 125 ml wine. Positive drug monitoring at screening. Evidence for obviously active disease of hematological system, or obvious blood loss within 3 months. Blood donation 3 months prior to study. Current or past history of nervous-psychiatric disorder, as assessed by Columbia Suicide Severity Rating Scale-baseline evaluation or in the opinion of investigator that the subject is at risk of suicide or with history of suicide behavior/attempt. Unsuitable for participating in the study according to the law. Unsuitable for participating in the study in the opinion the investigator.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
GSK Clinical Trials
Organizational Affiliation
GlaxoSmithKline
Official's Role
Study Director
Facility Information:
Facility Name
GSK Investigational Site
City
Shanghai
ZIP/Postal Code
200030
Country
China

12. IPD Sharing Statement

Plan to Share IPD
Yes
IPD Sharing Plan Description
Patient-level data for this study will be made available through www.clinicalstudydatarequest.com following the timelines and process described on this site.
Links:
URL
https://www.clinicalstudydatarequest.com
Description
Researchers can use this site to request access to anonymised patient level data and/or supporting documents from clinical studies to conduct further research.
Available IPD and Supporting Information:
Available IPD/Information Type
Study Protocol
Available IPD/Information URL
https://www.clinicalstudydatarequest.com
Available IPD/Information Identifier
115207
Available IPD/Information Comments
For additional information about this study please refer to the GSK Clinical Study Register
Available IPD/Information Type
Clinical Study Report
Available IPD/Information URL
https://www.clinicalstudydatarequest.com
Available IPD/Information Identifier
115207
Available IPD/Information Comments
For additional information about this study please refer to the GSK Clinical Study Register
Available IPD/Information Type
Dataset Specification
Available IPD/Information URL
https://www.clinicalstudydatarequest.com
Available IPD/Information Identifier
115207
Available IPD/Information Comments
For additional information about this study please refer to the GSK Clinical Study Register
Available IPD/Information Type
Statistical Analysis Plan
Available IPD/Information URL
https://www.clinicalstudydatarequest.com
Available IPD/Information Identifier
115207
Available IPD/Information Comments
For additional information about this study please refer to the GSK Clinical Study Register
Available IPD/Information Type
Individual Participant Data Set
Available IPD/Information URL
https://www.clinicalstudydatarequest.com
Available IPD/Information Identifier
115207
Available IPD/Information Comments
For additional information about this study please refer to the GSK Clinical Study Register
Available IPD/Information Type
Informed Consent Form
Available IPD/Information URL
https://www.clinicalstudydatarequest.com
Available IPD/Information Identifier
115207
Available IPD/Information Comments
For additional information about this study please refer to the GSK Clinical Study Register
Available IPD/Information Type
Annotated Case Report Form
Available IPD/Information URL
https://www.clinicalstudydatarequest.com
Available IPD/Information Identifier
115207
Available IPD/Information Comments
For additional information about this study please refer to the GSK Clinical Study Register

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The Bioequivalence Study of Lamotrigine Dispersible/Chewable Tablets 5mg×5 Compared With Lamotrigine Compressed Tablet 25mg in Chinese Healthy Male Subjects

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