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Protocol Summary for 113220

Protocol Summary
Protocol Id: 113220
Secondary Ids:
  • N/A
Title: An Open-Label, Dose-Escalation, Phase I/II Study to Investigate the Safety, Pharmacokinetics, Pharmacodynamics and ClinicalActivity of the BRAF Inhibitor GSK2118436 in Combination with the MEK Inhibitor GSK1120212 in Subjects with BRAF Mutant Metastatic Melanoma
Phase: phase 2
Acronym:
FDA Regulated Intervention?: Yes
Section 801 Clinical Trial?: Yes
Delayed Posting: No
IND/IDE Protocol?: yes
IND/IDE Grantor: CDER
IND/IDE Number: 105,032
IND/IDE Serial Number: 102,175
Has Expanded Access?: no
Study Type: Interventional
Oversight Authority:
  • United States: Food and Drug Administration
Collaborators:
  • N/A
Brief Summary: This is an open-label, dose escalation study to investigate the safety, pharmacokinetics, pharmacodynamics and clinical activity of GSK2118436 and GSK1120212 in combination. This study is designed in four parts. In Part A, the effect of repeat doses of GSK1120212 on the pharmacokinetics of single dose GSK2118436, will be investigated prior to evaluating combination regimens. In Part B, the range of tolerated dose combinations will be identified using a dose-escalation procedure. In Part C, different dose combinations of GSK2118436 and GSK1120212 will be evaluated, based on results from the dose escalation cohorts. In Part D, the pharmacokinetics and safety of GSK2118436 administered as HPMC capsules alone and in combination with GSK1120212 will be evaluated.
Detailed Description: During Part A, a cohort of subjects will receive a single dose of GSK2118436 alone (Day 1) and then repeat doses of GSK1120212 for (Day 2 through Day 15). The dose regimen of GSK1120212 will be continuous dosing. A second single dose of GSK2118436 will be administered on Day 15 concomitantly with GSK1120212. Day 16 through Day 28 will be a washout period, during which no study medication is administered. Starting on Day 29, subjects who elect to continue participation in the study will dose with GSK2118436. The dose of GSK2118436 after Day 29 may be altered based on emerging data from the first-time-in human study BRF112680. The dose may be increased to a dose level that has been completed and determined to be less than or equal to the maximum tolerated dose in that study. Part B of the study will enroll cohorts in escalating doses to identify a set of allowable doses to be expanded in Part C. Subjects will enrolled in a 3+3 cohort design, with provisional dose levels of both drugs. The decision regarding escalation to the next dose levels of GSK1120212 and GSK2118436 will be further guided by a Bayesian logistic regression model. The first cohort will start at low doses for both drugs. Doses up to 300 mg/day for GSK2118436 and up to 3 mg QD for GSK1120212 have been studied to date. The starting dose may be lowered based on emerging data from other studies and from Part A. Expansion cohorts will be enrolled in Part C at dose levels of GSK2118436 and GSK1120212 as defined in Part B. One of the selected doses may include GSK2118436 administered as monotherapy at a tolerable dose (less than or equal to the maximum tolerated dose) determined in BRF112680. Part C is a randomized open-label Phase II portion of the study, and will consist of expansion cohorts investigating 2 to 3 dose levels of GSK2118436 and GSK1120212 dosing in combination, and GSK2118436 administered as monotherapy. Subjects will be assigned to treatment arms in a randomized fashion to compare tolerability and safety. Population PK parameters, clinical activity, durability of response and safety of GSK2118436 and GSK1120212 dosed orally in combination and GSK2118436 as monotherapy will be evaluated. Part D will consist of evaluation of the pharmacokinetics of GSK2118436 HPMC capsules administered as monotherapy and in combination with GSK1120212. Pharmacokinetics of GSK2118436 will be assessed following a single dose on Day 1 and after repeat dosing (Day 21) and compared between combination and monotherapy. The pharmacokinetics of GSK1120212 will also be assessed. Safety, tolerability and clinical activity will also be evaluated in 4 dosing cohorts. These cohorts may be expanded for additional safety data. Subjects will be randomized to different cohorts.
Record Verification Date: October 2012
Status: Active not recruiting
Why Study Stopped:
Study Start Date: March 2010
Estimated Study Completion Date: May 2013
Study Completion Date Type: Anticipated
Primary Completion Date: May 2012
Primary Completion Date Type: Actual
Primary Purpose: treatment
Allocation: Non-randomized
Masking: Open Label
Masked Subject: no
Masked Caregiver: no
Masked Investigator: no
Masked Assessor: no
Study Design (Assignment): Parallel Assignment
Study Classification (Endpoint): Pharmacodynamics Study
Primary Outcomes:
  • Response rate (complete response + partial response) of GSK2118436 and GSK1120212 in BRAF mutant metastatic melanoma. Response duration. Progression-free survival. Adverse events and changes in laboratory values and vital signs. yes 1 year
  • Single dose pharmacokinetic parameters for GSK2118436 (and its metabolite(s), including GSK2285403). 1 year
  • Adverse events and changes in laboratory values and vital signs. yes 1 year
Secondary Outcomes:
  • GSK2118436 (and its metabolite(s) including GSK2285403), and GSK1120212 pharmacokinetic parameters following repeat-dose administration of GSK2118436 and GSK1120212. Tumor response. 1 year
  • Population pharmacokinetic parameters (oral clearance and oral volume of distribution of GSK2118436 and GSK1120212) will be determined. Complete response + Partial response+Stable disease. Duration of response. Progression free survival. 1 year
  • GSK1120212 concentrations during concomitant GSK2118436. 1 year
Conditions:
  • Cancer
Keywords:
  • drug-drug interaction
  • dose escalation
  • MEK inhibitor
  • melanoma
  • BRAF inhibitor
  • expansion cohorts
Eligibility Criteria: Click to view inclusion/exclusion criteria
Gender: Both
Minimum Age: 18 Year
Maximum Age:
Enrollment: 430
Enrollment Type: Actual
Healthy Volunteers?: none
Central Contact: Call Center
Central Contact Phone: 877-379-3718
Central Contact Email: GSKClinicalSupportHD@gsk.com
Backup Central Contact:
Backup Central Contact Phone:
Backup Central Contact Email:
Overall Study Official: GSK Clinical Trials
Overall Study Official Affiliation: GlaxoSmithKline
Overall Study Official Role: Study Director
Responsible Party Name/Official Title: Cheri Hudson; Clinical Disclosure Advisor
Responsible Party Organization: GSK Clinical Disclosure
Location and Contact Information: Click to view location information