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SB773812

Phase 2

Schizophrenia | Small molecule | Psychiatry |GSK plc|Last Updated: Aug 17, 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 Trials5
Total Enrollment547
FDA Designations
No designations recorded
Clinical Trials (5)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT00259870SB-773812 Administered In Adults With SchizophreniaPHASE2 COMPLETED 338Sep 1, 2005Aug 1, 2007Mar 23, 201745 United States, Belgium +5
NCT00500201A Healthy Volunteer Study to Assess the Relative Bioavailability of 2 Forms of SB773812 Tablets.PHASE1 COMPLETED 18May 24, 2007Jul 25, 2007Aug 8, 20171 United Kingdom
NCT00411866Effects Of The Drug Ketoconazole On How The Body Handles The Drug SB773812PHASE1 COMPLETED 36Oct 13, 2006Oct 10, 2007Aug 3, 20171 United Kingdom
NCT00269035SPECT Study With SB-773812 In Schizophrenic PatientsPHASE1 COMPLETED 95Jun 21, 2005May 26, 2007Aug 17, 20176 Spain
NCT00197093In-Patient Study In Schizophrenic PatientsPHASE1 COMPLETED 60Sep 1, 2004 -May 18, 2009 -
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Study Endpoints
Primary Endpoints
total score for each SB-773812 dose versus placebo at Week 6.
12 Weeks
Blood sampling over a period 336 hrs post SB773812 dosing in both dosing sessions.
336 hrs post SB773812 dosing
Blood sampling over period of 336 hours post dosing with SB-773812
over period of 336 hours post dosing
To investigate in schizophrenic patients the relationship between D2 RO, 5HT2A RO and stable plasma concentrations of SB-773812 (gr.1) and the relationship of D2 RO and PK over time at steady state to efficacy readouts after 6 w treatment (gr.2)
6 weeks
Safety and Tolerability of 773812 during 28 days of dosing. Pharmacokinetics of 773812 after repeat dosing.
Secondary Endpoints
Evaluate safety of SB-773812 versus placebo and compared to olanzapine using PANNS scores -Measure the preliminary pharmacokinetic/pharmacodynamic relationships for SB-773812 -Assessment of movement disorders and cognitive functioning
12 Weeks
Safety: ECG, vital signs, clinical labs over 336 hours post SB-773812 dosing in both dosing sessions.
336 hours post SB-773812 dosing
Continuous adverse event monitoring from dosing until study conclusion and follow up, 7-14days after last dose.
7-14days after last dose
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Subjects in treatment sequence ABEXPERIMENTALIn treatment sequence AB first subjects will be randomized to receive treatment A (two tablets of 60 milligram \[mg\] of SB-773812) and one placebo tablet. Then subjects will receive treatment B (one tablet of 120 mg of SB-773812) and two placebo tablets . There will be a wash-out period of 20 days between.
Subjects in treatment sequence BAEXPERIMENTALIn treatment sequence BA first subjects will be randomized to receive treatment B (one tablet of 120 mg of SB-773812) and two placebo tablets. Then subjects will receive treatment A (two tablets of 60 mg of SB-773812) and one placebo tablet. There will be a wash-out period of 20 days between.
Subjects receiving ketoconazole for 8 daysEXPERIMENTALIn Session 1, subjects will receive a single oral dose of SB-773812 20 milligrams (mg), followed by 21 days-washout. In Session 2, subjects will receive once daily oral dose of ketoconazole 400 mg repeated for 8 days. On day 5, single oral dose of SB-773812 20 mg will be dosed concomitantly with ketoconazole.
Subjects receiving ketoconazole for 14 daysEXPERIMENTALIn Session 1, subjects will receive a single oral dose of SB-773812 (20mg), followed by 21 days-washout. In Session 2, subjects will receive once daily oral dose of ketoconazole 400 mg repeated for 12 days. On day 5, single oral dose of SB-773812 20 mg will be dosed concomitantly with ketoconazole.
Treatment Group 1EXPERIMENTALSubjects in group 1 will receive SB-773812 tablet once daily till still steady Cp
Treatment Group 2EXPERIMENTALSubjects in group 2 will receive SB-773812 tablets once daily over 6 weeks. Risperidone tablets 6 mg once daily from Days 1-7 two tablets of 3 mg and days 8 until stable Cp 6 mg tablets
Interventions
NameTypeDescription
SB-773812DRUG -
OlanzapineDRUG -
SB- 773812 60 mgDRUGSB- 773812 will be available dose strength of 60 mg and administered orally by subjects.
SB- 773812 120 mgDRUGSB- 773812 will be available dose strength of 120 mg and administered orally by subjects.
PlaceboDRUGPlacebo tablets will be administered orally by subjects.
SB773812DRUGSB-773812 20 mg will be available as white round film coated tablets.
KetoconazoleDRUGKetoconazole will be available as 200mg tablets.
RisperidoneDRUGRisperidone tablets will be available with dose strength of 3 and 6 mg
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Eligibility Criteria
Age Range18 Years — 65 Years
SexALL
Healthy VolunteersNo
Study Sites45

Inclusion Criteria: * Meets the diagnostic criteria for schizophrenia as defined in DSM-IV. * PANSS total score of at least 70 at Screen and Baseline and a minimum score of 4 (moderate) on at least 2 of the following: conceptual disorganization (P2) hallucinatory behaviour (P3) suspiciousness (P6) ...

Countries:United StatesBelgiumCosta RicaCzechiaIndiaPeruRussiaUnited KingdomSpain
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