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Trial details imported from ClinicalTrials.gov
For full trial details, please see the original record at
https://clinicaltrials.gov/study/NCT01738451
Registration number
NCT01738451
Ethics application status
Date submitted
15/11/2012
Date registered
30/11/2012
Date last updated
13/11/2017
Titles & IDs
Public title
A Study to Evaluate the Effect of Repeat Oral Dosing of GSK2118436 on Cardiac Repolarization in Subjects With V600 BRAF Mutation-Positive Tumors
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Scientific title
A Two-Part Study to Evaluate the Effect of Repeat Oral Dosing of GSK2118436 on Cardiac Repolarization in Subjects With V600 BRAF Mutation-Positive Tumors: An Open-label, Dose-escalating Safety Lead-in Study Followed by a Single-sequence, Placebo-controlled, Single-blind Study
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Secondary ID [1]
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113773
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Universal Trial Number (UTN)
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Trial acronym
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Cancer
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0
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Condition category
Condition code
Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Treatment: Drugs - GSK2118436 75 mg
Treatment: Drugs - Placebo
Experimental: Part 1(Cohort 1): GSK2118436 225 mg - GSK2118436 (3 capsules of 75 mg) will be administered orally at the dose of 225 mg BID from Day 1 to 7 (and single dose on Day 8) under fasted conditions, either 1 hour before or 2 hours after a meal.
Experimental: Part 1(Cohort 2): GSK2118436 300 mg - GSK2118436 (4 capsules of 75 mg) will be administered orally at the dose of 300 mg BID from Day 1 to 7 (and single dose on Day 8) under fasted conditions, either 1 hour before or 2 hours after a meal. If 225 mg BID is not tolerated in Part 1 /Cohort 1, then Part 1/Cohort 2 will not be initiated and 150 mg BID will be used in Part 2.
Experimental: Part 2: GSK2118436 300 mg (or highest tolerated dose) - Subjects will receive a single dose of GSK2118436/placebo (4 capsules of 75 mg/highest tolerated dose) orally on the first 2 days of the study followed by 2 doses daily for 6 days and a single dose on the 9th day. There will be 1 day when a placebo will be given. All doses will be administered under fasted conditions, either 1 hour before or 2 hours after a meal.
Treatment: Drugs: GSK2118436 75 mg
Each capsule contains 75 mg of GSK2118436A as the mesylate salt, micronized particles as active equivalents.
Treatment: Drugs: Placebo
Matching placebo capsules will be administered in Part 2 of the study.
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Intervention code [1]
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Treatment: Drugs
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Comparator / control treatment
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Control group
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Outcomes
Primary outcome [1]
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Part 1: Safety and tolerability of GSK2118436 as assessed by changes in physical examination findings
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Assessment method [1]
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Safety and tolerability parameter will include a complete (head, eyes, ears, nose, throat, skin, thyroid, neurological, lungs, cardiovascular, abdomen \[liver and spleen\], lymph nodes, extremities, height and weight) and brief (skin, lungs, cardiovascular system, abdomen \[liver and spleen\] and weight) physical examination at Baseline and at the end of Part 1 of the study.
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Timepoint [1]
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Screening, Day 1 and Week 6.
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Primary outcome [2]
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Part 1: Safety and tolerability of GSK2118436 as assessed by changes in vital signs measurements
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Assessment method [2]
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Safety and tolerability parameter will include measurement of vital signs (recording of systolic and diastolic blood pressure, temperature, and pulse rate) at Baseline and at the end of Part 1 of the study.
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Timepoint [2]
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Screening, pre-dose and 8 hours post-dose on Study Day 1, 8, 15, and Week 6.
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Primary outcome [3]
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Part 1: Safety and tolerability of GSK2118436 as assessed by changes in ECG readings
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Assessment method [3]
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Safety and tolerability parameter will include ECGs readings (heart rate and measurement of RR, PR, QRS, QT, and QTc intervals) at Baseline and at the end of Part 1 of the study.
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Timepoint [3]
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Screening, Day 1, 8 Day 15 and Week 6. On study days 1 and 8, ECG will be obtained at 30 minutes pre-dose and 2-hours (hrs) post-dose administration.
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Primary outcome [4]
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Part 1: Safety and tolerability of GSK2118436 as assessed by changes in clinical laboratory assessments
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Assessment method [4]
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Safety and tolerability parameter will include laboratory values (hematology, clinical chemistry, coagulation, liver function tests, cardiac enzyme and beta-hCG/serum or urine pregnancy test for female subjects of childbearing potential only) at Baseline and at end of Part 1 of the study.
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Timepoint [4]
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Day 1, 8, 15 and and Week 6.
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Primary outcome [5]
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Part 2: Change from Baseline in QTcF interval at each time point for GSK2118436
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Assessment method [5]
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Change from Baseline in QTcF interval at each time point for GSK2118436 will be calculated as average of 3 Holter ECG replicates per time point minus the value at Baseline.
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Timepoint [5]
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Baseline (Study Day -1)/pre-dose (Study Days 1 and 8) (within 30 minutes prior to administration of study treatment) and 1, 1.5, 2, 3, 4, 6, 8, 10 and 24-hrs post-dose. Day 2 and 9, 24 hr post dose Holter ECG.
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Secondary outcome [1]
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Part 1: Plasma concentration of GSK2118436 and its metabolites
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Assessment method [1]
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Plasma concentrations of GSK2118436 and its metabolites GSK2285403, GSK2298683 and GSK2167542 will be recorded.
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Timepoint [1]
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On Day 1 and Day 8 at pre-dose (30 minutes (mins) prior to the administration of study treatment) and 1, 1.5, 2, 3, 4, 6, 8, and 10-hours post-dose.
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Secondary outcome [2]
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Part 1: The AUC(0-t)) of GSK2118436 and its metabolites
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Assessment method [2]
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Pharmacokinetic data will include area under the time-concentration curve from time zero (pre-dose) to last time of quantifiable concentration (AUC(0-t)) of GSK2118436 and its metabolites GSK2285403, GSK2298683 and GSK2167542.
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Timepoint [2]
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On Day 1 and Day 8 at pre-dose (30 mins prior to the administration of study treatment) and 1, 1.5, 2, 3, 4, 6, 8, and 10-hours post-dose.
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Secondary outcome [3]
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Part 1: The Cmax of GSK2118436 and its metabolites
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Assessment method [3]
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Pharmacokinetic data will include maximum plasma concentration (Cmax) of GSK2118436 and its metabolites GSK2285403, GSK2298683 and GSK2167542.
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Timepoint [3]
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Part 1: Day 1 and Day 8 pre-dose (30 mins prior to the administration of study treatment) and 1, 1.5, 2, 3, 4, 6, 8, and 10-hours post-dose.
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Secondary outcome [4]
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The Ctrough of GSK2118436 and its metabolites
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Assessment method [4]
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Pharmacokinetic data will include predose concentration (Ctrough) of GSK2118436 and its metabolites GSK2285403, GSK2298683 and GSK2167542.
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Timepoint [4]
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Part 1: Day 8 pre-dose (30 mins prior to the administration of study treatment) and 1, 1.5, 2, 3, 4, 6, 8, and 10-hours post-dose.
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Secondary outcome [5]
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The tmax of GSK2118436 and its metabolites
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Assessment method [5]
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Pharmacokinetic data will include time of occurrence of Cmax (tmax) of GSK2118436 and its metabolites GSK2285403, GSK2298683 and GSK2167542.
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Timepoint [5]
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Part 1: Day 1 and Day 8 pre-dose (30 mins prior to the administration of study treatment) and 1, 1.5, 2, 3, 4, 6, 8, and 10-hours post-dose.
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Secondary outcome [6]
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Part 2: Change from Baseline in slope of the relationships between the baseline-adjusted, placebo-corrected change in QTc interval and the plasma concentrations of GSK2118436 or its metabolites and predicted change in QTc
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Assessment method [6]
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The relationship between plasma concentrations of GSK2118436 and its metabolites (GSK2285403, GSK2298683 and GSK2167542) and the baseline-adjusted, placebo-corrected, time-matched change from Baseline in QTc intervals will be assessed.
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Timepoint [6]
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Part 2: Baseline (pre-dose study Days 1 and 8 within 30 minutes prior to administration of study treatment) and 1, 1.5, 2, 3, 4, 6, 8, 10 and 24-hrs post-dose (Day 1 and 8). On Day 2 and 9, 24-hr post-dose PK sample and Holter ECG.
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Secondary outcome [7]
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Part 2: ECG parameters: and morphology assessments
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Assessment method [7]
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ECG parameters: QT, QTcB, QTci, HR, RR interval, PR interval, QRS interval and morphology will be assessed in subjects receiving GSK2118436.
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Timepoint [7]
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Part 2: Baseline (pre-dose study Days 1 and 8 within 30 minutes prior to administration of study treatment) and 1, 1.5, 2, 3, 4, 6, 8, 10 and 24-hrs post-dose (Day 1 and 8). On Day 2 and 9, 24-hr post dose Holter ECG.
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Secondary outcome [8]
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Part 2: Plasma concentrations of GSK2118436 and its metabolites
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Assessment method [8]
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The plasma concentration of GSK2118436 and its metabolites GSK2285403, GSK2298683 and GSK2167542 will be measured.
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Timepoint [8]
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On Days -1, 1 and 8 at pre-dose (within 30 minutes prior to administration of study treatment) and 1, 1.5, 2, 3, 4, 6, 8, 10 and 24 hrs post-dose (Day 1 and 8). On Days 2 and 9 at 24-hr post dose PK sample.
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Secondary outcome [9]
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The AUC(0-10) and AUC(0 t) of GSK2118436 and its metabolites (GSK2285403, GSK2298683 and GSK2167542)
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Assessment method [9]
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Pharmacokinetic data will include AUC from time zero (pre-dose) to 10 hours after the last dose of study treatment (AUC(0-10)) and AUC(0 t) of GSK2118436 and its metabolites GSK2285403, GSK2298683 and GSK2167542.
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Timepoint [9]
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Part 2: Days -1, 1 and 8: pre-dose (within 30 minutes prior to administration of study treatment) and 1, 1.5, 2, 3, 4, 6, 8, 10 and 24 hrs post-dose (Day 1 and 8). On Day 2 and 9, 24-hr post dose PK sample.
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Secondary outcome [10]
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The AUC(0-infinity) of GSK2118436 and its metabolites (GSK2285403, GSK2298683 and GSK2167542)
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Assessment method [10]
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Pharmacokinetic data will include AUC from time zero to infinity AUC(0-infinity) of GSK2118436 and its metabolites GSK2285403, GSK2298683 and GSK2167542 on Study Day 1, if data permit).
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Timepoint [10]
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Part 2: Day 1: pre-dose (within 30 minutes prior to administration of study treatment) and 1, 1.5, 2, 3, 4, 6, 8, 10 and 24 hrs post-dose (Day 1).
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Secondary outcome [11]
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The t½ of GSK2167542 and its metabolites
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Assessment method [11]
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Pharmacokinetic data will include elimination half life (t1/2) of GSK2118436 and its metabolites GSK2285403, GSK2298683 and GSK2167542 if data permits.
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Timepoint [11]
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Part 2: Study Day 1 pre-dose (within 30 minutes prior to administration of study treatment) and 1, 1.5, 2, 3, 4, 6, 8, 10 and 24 hrs post-dose.
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Secondary outcome [12]
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Part 2: The Ctrough of GSK2167542 and its metabolites
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Assessment method [12]
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Pharmacokinetic data will include C trough of GSK2118436 and its metabolites GSK2285403, GSK2298683 and GSK2167542.
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Timepoint [12]
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Part 2: Study Day 8 pre-dose (within 30 minutes prior to administration of study treatment) and 1, 1.5, 2, 3, 4, 6, 8, 10 and 24 hrs post-dose.
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Secondary outcome [13]
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Part 2: The Cmax, of GSK2167542 and its metabolites
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Assessment method [13]
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Pharmacokinetic data will include Cmax of GSK2118436 and its metabolites GSK2285403, GSK2298683 and GSK2167542.
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Timepoint [13]
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Days -1, 1 and 8: pre-dose (within 30 minutes prior to administration of study treatment) and 1, 1.5, 2, 3, 4, 6, 8, 10 and 24 hrs post-dose (Day 1 and 8). On Day 2 and 9, 24-hr post dose PK sample.
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Secondary outcome [14]
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Part 2: The tmax, of GSK2167542 and its metabolites
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Assessment method [14]
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Pharmacokinetic data will include tmax of GSK2118436 and its metabolites GSK2285403, GSK2298683 and GSK2167542.
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Timepoint [14]
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Days -1, 1 and 8: pre-dose (within 30 minutes prior to administration of study treatment) and 1, 1.5, 2, 3, 4, 6, 8, 10 and 24 hrs post-dose (Day 1 and 8). On Day 2 and 9, 24-hr post dose PK sample.
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Secondary outcome [15]
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Part 2: Safety of GSK2118436 as assessed by number of subjects with adverse events (AE)s
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Assessment method [15]
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Safety parameters will include recording of AEs, in Part 2 of the study.
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Timepoint [15]
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Continuous throughout the study.
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Secondary outcome [16]
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Part 2: Safety of GSK2118436 as assessed by changes in vital signs measurements
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Assessment method [16]
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Safety parameters will include measurement of vital signs (recording of systolic and diastolic blood pressure, temperature, and pulse rate) at Baseline and at the end of Part 2 of the study.
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Timepoint [16]
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Screening, Day -1, Day 1, Day 8, Day 9 and Week 5.
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Secondary outcome [17]
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Part 2: Safety of GSK2118436 as assessed by changes in ECG readings
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Assessment method [17]
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Safety parameters will include ECGs readings (heart rate and measurement of RR, PR, QRS, QT, and QTc intervals) at Baseline and at the end of Part 2 of the study.
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Timepoint [17]
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Screening, Day -1, Day 1, Day 2, Day 8, Day 9 and Week 5.
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Secondary outcome [18]
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Part 2: Safety of GSK2118436 as assessed by changes in clinical laboratory assessments
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Assessment method [18]
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Safety parameters will include laboratory values (hematology, clinical chemistry, coagulation, liver function tests, cardiac enzyme and beta-hCG/serum or urine pregnancy test for female subjects of childbearing potential only) at Baseline and at end of Part 2 of the study.
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Timepoint [18]
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Screening, Day -1, Day 1, Day 8, Day 9 and Week 5.
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Eligibility
Key inclusion criteria
* Has provided signed, written informed consent for this study.
* Male or female, age >=18 years of age at the time of signing the informed consent form
* Has confirmed diagnosis of a V600 BRAF-mutation positive tumor as determined by appropriate genetic testing.
* Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1.
* Has adequate baseline organ function as defined by: Absolute neutrophil count>=1.2 × 10^9/liter (L), hemoglobin>=9 gram (g)/deciliter (dL), platelets>= 75 × 10^9/L, prothrombin time (PT), international normalization ratio (INR) and partial thromboplastin time (PTT)<=1.3 times upper limit of normal (ULN), total bilirubin<=1.5 times ULN, alanine aminotransferase (ALT)<=2.5 times ULN; <5 times ULN if liver metastases are present, creatinine or<=1.5 times ULN, calculated creatinine clearance or 24-hour urine creatinine clearance>=60 mL/min and left ventricular ejection fraction (LVEF)>= institutional lower limit of normal (LLN) by echocardiogram (ECHO).
* For Part 2 subjects only: Have serum potassium, serum magnesium, and total serum calcium levels within normal limits.
* Able to swallow and retain orally administered medication and does not have any clinically significant GI abnormalities that may alter the absorption such as malabsorption syndrome or major resection of the stomach or bowels.
* If a female subject of childbearing potential, must have a negative serum pregnancy test within 14 days of first dose of study treatment and agree to use effective contraception, during the study and for 4 weeks following the last dose of study treatment.
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Minimum age
18
Years
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Maximum age
No limit
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
* Known immediate or delayed hypersensitivity reaction to dabrafenib or excipients;
* Any of the following ECG findings: QT duration corrected using Fridericia's formula (QTcF) interval >450 milliseconds (msec), PR interval >220 msec or <=110 msec, bradycardia defined as sinus rate <50 beats per minute (bpm)
* Cardiac conduction abnormalities denoted by any of the following: evidence of second-degree (type II) or third-degree atrioventricular block, evidence of ventricular pre-excitation, electrocardiographic evidence of complete left bundle branch block (LBBB), intraventricular conduction delay with QRS duration >120 msec, evidence of atrial fibrillation or history of atrial fibrillation within the past 6 months or presence of cardiac pacemaker
* History of any one of the following cardiovascular conditions within the past 6 months: Class II, III, IV heart failure as defined by the New York Heart Association (NYHA), cardiac angioplasty or stenting, myocardial infarction, unstable angina or symptomatic peripheral vascular disease or other clinically significant cardiac disease
* LVEF, as measured by ECHO, below the institutional LLN, or if a LLN does not exist at an institution, <50%.
* Abnormal cardiac valve morphology (>=grade 2) documented by echocardiogram (subjects with minimal abnormalities [ie, mild regurgitation/stenosis] can be entered)
* Moderate valvular thickening
* Personal or immediate family history of long-QT syndrome.
* Anti-cancer therapy (e.g., chemotherapy with delayed toxicity, extensive radiation therapy, immunotherapy, biologic therapy, or major surgery) within 21 days prior to enrolment; chemotherapy regimens without delayed toxicity within 14 days prior to enrollment; or use of an investigational anti-cancer drug within 28 days preceding the first dose of study treatment.
* Current use of a prohibited medication(s) or requires any of these medications during treatment with study treatment
* Current use of therapeutic warfarin.
* Unresolved toxicity of Grade 2 or higher from previous anticancer therapy, except alopecia or hemoglobin.
* A history of known Human Immunodeficiency Virus, Hepatitis B Virus (HBV), or Hepatitis C Virus infection. Subjects with documented laboratory evidence of HBV clearance may be enrolled.
* A history of known glucose-6-phosphate dehydrogenase (G6PD) deficiency.
* Brain metastases that are: symptomatic, or treated (surgery, radiation therapy) but not clinically and radiographically stable 1 month after local therapy, or asymptomatic and untreated but >1 centimeter (cm) in the longest dimension
* Uncontrolled medical conditions (i.e., diabetes mellitus, hypertension), psychological, familial, sociological, or geographical conditions that do not permit compliance with the protocol; or unwillingness or inability to follow the procedures required in the protocol.
* History of another malignancy; Only (a) Subjects who have been successfully treated and are disease-free for 3 years, (b) a history of completely resected non-melanoma skin cancer, (c) successfully treated in situ carcinoma, (d) CLL in stable remission, or (e) indolent prostate cancer (definition: clinical stage T1 or T2a, Gleason score <=6, and PSA < 10 nanogram (ng)/mL) requiring no or only anti-hormonal therapy with histologically confirmed tumour lesions that can be clearly differentiated from lung cancer target and non-target lesions are eligible
* Pregnant or lactating/actively breastfeeding female.
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Non-randomised trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Open (masking not used)
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Who is / are masked / blinded?
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Intervention assignment
Single group
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Other design features
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Phase
Phase 1
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Type of endpoint/s
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Data analysis
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Reason for early stopping/withdrawal
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Other reasons
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Date of first participant enrolment
Anticipated
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Actual
22/01/2013
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Date of last participant enrolment
Anticipated
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Actual
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Date of last data collection
Anticipated
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Actual
28/11/2014
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Sample size
Target
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Accrual to date
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Final
50
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Recruitment in Australia
Recruitment state(s)
VIC
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Recruitment hospital [1]
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GSK Investigational Site - Heidelberg
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Recruitment hospital [2]
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GSK Investigational Site - Melbourne
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Recruitment postcode(s) [1]
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3084 - Heidelberg
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Recruitment postcode(s) [2]
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3004 - Melbourne
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Recruitment outside Australia
Country [1]
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United States of America
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State/province [1]
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Arizona
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Country [2]
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United States of America
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State/province [2]
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Tennessee
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Country [3]
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United States of America
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State/province [3]
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Texas
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Country [4]
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0
United States of America
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State/province [4]
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Utah
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Country [5]
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United Kingdom
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State/province [5]
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London
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Funding & Sponsors
Primary sponsor type
Commercial sector/industry
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Name
GlaxoSmithKline
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Address
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Country
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Ethics approval
Ethics application status
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Summary
Brief summary
This is a Phase I, multicenter, 2-part study with Part 1 designed as a safety lead-in and Part 2 designed to evaluate the effect of GSK2118436 on cardiac repolarization (corrected QT interval \[QTc\] duration) as compared with placebo in subjects with V600 BRAF mutation-positive tumors. Each part of the study will consist of screening (14 days prior to the start of the study treatment), treatment and follow-up period (14 days). In Part 1 in Cohort 1 six subjects will receive GSK2118436 225 mg twice a day (BID) on study days 1 to 7 and a single 225 milligram (mg) dose on morning of Day 8. Based on the safety data of subjects in Cohort 1 subjects will be enrolled in Cohort 2 and the dose of GSK2118436 will be escalated to 300 mg BID. If the 225 mg dose of GSK2118436 is not well tolerated in Cohort 1 (i.e., 2 or more dose-limiting toxicities \[DLTs\]), then Cohort 2 of Part 1 will not be initiated and a dose of 150 mg BID of GSK2118436 will be administered in Part 2 of the study. In Cohort 2 six subjects will receive GSK2118436 300 mg BID on Study Days 1 to 7 and a single 300 mg dose on the morning of Day 8. Based on the safety data of subjects in Cohort 2 subjects will be enrolled in Part 2. If the 300 mg BID dose level of GSK2118436 is not well tolerated, then the highest tolerated dose will be selected for Part 2 of the study. In Part 1 of the study the decision to proceed to the next cohort or Part 2 of the study will be based on the safety data of at least 6 evaluable subjects (\<=1 DLTs during the 14 days following the first dose of GSK2118436). In Part 2 of the study eligible subjects will receive a single dose of GSK2118436/placebo (4 capsules of 75 mg/highest tolerated dose) orally on the first 2 days of the study followed by 2 doses daily for 6 days and a single dose on the 9th day. There will be 1 day when a placebo will be given. In both the parts of the study serial blood samples for pharmacokinetic (PK) analysis for GSK2118436 and its metabolites (GSK2285403, GSK2298683 and GSK2167542) will be obtained at the same time points on the first and last day of dosing (2nd day of dosing also included for Part 2). Safety electrocardiogram (ECG)s will be performed at several timepoints during the study. In Part 2 Holter ECG monitoring will be performed for 24 hours on the 1st, 2nd and 9th days of dosing.
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Trial website
https://clinicaltrials.gov/study/NCT01738451
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Trial related presentations / publications
Nebot N, Arkenau HT, Infante JR, Chandler JC, Weickhardt A, Lickliter JD, Sarantopoulos J, Gordon MS, Mak G, St-Pierre A, Tang L, Mookerjee B, Carson SW, Hayes S, Grossmann KF. Evaluation of the effect of dabrafenib and metabolites on QTc interval in patients with BRAF V600-mutant tumours. Br J Clin Pharmacol. 2018 Apr;84(4):764-775. doi: 10.1111/bcp.13488. Epub 2018 Jan 23.
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Public notes
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Contacts
Principal investigator
Name
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GSK Clinical Trials
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Address
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GlaxoSmithKline
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Country
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Phone
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Fax
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Email
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Contact person for public queries
Name
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Address
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Country
0
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Phone
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Fax
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Email
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Contact person for scientific queries
No information has been provided regarding IPD availability
What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
No documents have been uploaded by study researchers.
Results not provided in
https://clinicaltrials.gov/study/NCT01738451
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