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GSK618334

Phase 1

Substance Dependence | Small molecule | Other |GSK plc|Last Updated: Sep 15, 2017

Success Probability
Approval Probability 71%
TA Base Rate26%
Adjusted LOA41%
ML RiskLOW_RISK
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Market & Valuation
rNPV $3.2B
Market Size $9.4B
Revenue Basis $1.6B
Competitors 6
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Trial Design
RandomizedDouble-BlindCONTROLLEDBiomarker
Total Trials3
Total Enrollment78
FDA Designations
No designations recorded
Clinical Trials (3)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT01036061GSK618334 Repeat Dose StudyPHASE1 COMPLETED 46Sep 28, 2009Feb 17, 2010Jun 22, 20171 United Kingdom
NCT00814957An Open Label Positron Emission Tomography (PET) Study of GSK618334 in Healthy Male Subjects Using 11C-PHNO as PET LigandPHASE1 COMPLETED 12Dec 8, 2008Jun 11, 2009Jul 7, 20171 United Kingdom
NCT00513279To Investigate If Single Doses Of GSK618334 Are Safe And To Investigate Blood Levels Of GSK618334PHASE1 COMPLETED 20Jun 28, 2007Oct 4, 2007Sep 15, 20171 United Kingdom
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Study Endpoints
Primary Endpoints
The safety and tolerability endpoints will be: adverse events, laboratory values, cardiovascular variables (blood pressure, heart rate, ECG), temperature, respiratory rate, assessment of mood and abnormal movements, and GSK618334 blood levels.
First dose to follow-up
To assess blood concentrations of GSK618334 after repeated oral doses.
First dose to 72 hours post last dose
Binding of PHNO, PET ligand, in each region of interest at each scan.
up to 48 hours
Percentage of PHNO, PET ligand, occupancy in each region of interest after a single oral dose of GSK618334 for each individual.
up to 48 hours
Time course of GSK618334 concentration in blood following a single oral dose.
up to 48 hours
Safety measures: ECG, Vital Signs, Adverse Events
for 48 hours after dosing.
PK measures: Blood sampling for GSK598809
for up to 96hr post dose
Secondary Endpoints
To assess the effect of food on GSK618334 blood concentrations after a single dose.
First dose of the single dose session to 24 hours after dosing of the repeat dose session
The dopamine type 3 receptor binding in the brain (by PET scan) of GSK618334 following the repeat dose session.
First dose to 24 hours after last dose
Adverse events and other safety assessments such as clinically relevant changes in electrocardiography (ECG); vital signs (blood pressure, heart rate); laboratory safety data and physical examination.
screening to follow-up
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelSINGLE_GROUP
PurposeOTHER
Treatment Arms
ArmTypeDescription
GSK618334 low DoseEXPERIMENTALGSK618334 Low Dose
GSK618334 Medium DoseEXPERIMENTALGSK618334 medium dose arm
GSK618334 High DoseEXPERIMENTALGSK618334 High Dose Arm
GSK618334 PlaceboEXPERIMENTALPlacebo for all 3 dose levels
Open-labelEXPERIMENTALD3 receptor antagonist
Cohort 1EXPERIMENTALSubjects in Cohort 1 will be randomized to one of the following sequences: ABDFH, BADFH, BDAFH, BDFAH and BDFHA in a 1:1:1:1:1 ratio where A = Placebo, B= GSK618334 dose 1 (2.5 mg), D = GSK618334 dose 3, F = GSK618334 dose 5, H = GSK618334 dose 7. On day 1, subjects will be administered a starting dose of 2.5 milligrams (mg) GSK618334. The planned doses of GSK618334 to be administered in Cohort 1 are 2.5, 25, 100 and 400mg. In each dosing period 2 subjects will receive placebo and 8 subjects will receive GSK618334. Subjects within a cohort will have a washout period of at least two weeks from last dose before receiving another dose.
Cohort 2EXPERIMENTALSubjects in Cohort 2 will be randomized to one of the following sequences: ACEGI, CAEGI, CEAGI, CEGAI, CEGIA in a 1:1:1:1:1 ratio where A = Placebo, C= GSK618334 dose 2, E = GSK618334dose 4, G = GSK618334 dose 6, I= GSK618334 dose 8. In each dosing period 2 subjects will receive placebo and 8 subjects will receive GSK618334. Subjects within a cohort will have a washout period of at least two weeks from last dose before receiving another dose.
Interventions
NameTypeDescription
GSK618334 Low DoseDRUGGSK618334 low dose
GSK618334 PET subjectsDRUGPET subjects
GSK618334 Medium DoseDRUGMedium Dose
GSK618334 High DoseDRUGGSK618334 High Dose
GSK618334DRUGD3 receptor antagonist
GSK618334 matching placebo tabletsDRUGGSK618334 placebo tablets visually match the active GSK618334 tablets and contain the same excipients except for the omission of the active ingredient. GSK618334 matching placebo will be swallowed with 250 mL of water.
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Eligibility Criteria
Age Range18 Years — 50 Years
SexALL
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Healthy Males and Females between the ages of 18-50 years old * Male and Female subjects must agree to use protocol specified contraceptive methods. * Male subjects only in PET parts of the study. * Capable of providing written informed consent. Exclusion Criteria: * A posit...

Countries:United Kingdom
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