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GSK2315698

Phase 1

Amyloidosis | Small molecule | Other |GSK plc|Last Updated: Jul 21, 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-BlindPLACEBO_CONTROLLEDBiomarker
Total Trials3
Total Enrollment56
FDA Designations
No designations recorded
Clinical Trials (3)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT02953808Phase 1 Study of GSK2315698 in Healthy Japanese SubjectsPHASE1 COMPLETED 18Nov 1, 2016Dec 1, 2016Jan 19, 20171 Japan
NCT01406314SAP Depleter Dose Assessment Study in PatientsPHASE1 COMPLETED 17Oct 13, 2011Nov 14, 2012Jun 9, 20171 United Kingdom
NCT01323985SAP Depleter Dose Escalation Study in Healthy VolunteersPHASE1 COMPLETED 21Jan 6, 2011Jun 30, 2011Jul 21, 20171 United Kingdom
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Study Endpoints
Primary Endpoints
Number of subjects with adverse events (AE) and serious adverse events (SAE)
Over a maximum period of approximately 29 days
Number of subjects with abnormalities in clinical laboratory parameters
Over a maximum period of approximately 59 days

Abnormalities will be assessed in laboratory parameters of hematology, clinical chemistry, and routine urinalysis.

Number of subjects with abnormalities in vital sign parameters
Over a maximum period of approximately 59 days

Abnormalities will be assessed in the vital signs of respiratory rate, pulse rate, blood pressure, and body temperature. Vital signs will be measured in a supine position after 5 minutes of rest.

Number of subjects with electrocardiogram (ECG) abnormalities
Over a maximum period of approximately 59 days

Single 12-lead ECG will be obtained using an ECG machine that automatically calculates the heart rate and measures PR, QRS, QT, and QT interval corrected for heart rate by Fridericia's formula (QTcF) intervals.

Plasma concentration of GSK2315698
Pre-dose and 0.25, 1, 2, 4, 6, 8, 12, 24 hours post-dose in Cohort 1; Day 1 (pre-dose and 0.25, 1, 4, 12, 15, 18, 24 hours post-dose), and Days 5, 8, 14 in Cohort 2

Whole blood samples of approximately 2 milliliters (mL) will be collected for measurement of plasma concentrations of GSK2315698.

Maximum observed plasma concentration (Cmax) of GSK2315698
Pre-dose and 0.25, 1, 2, 4, 6, 8, 12, 24 hours post-dose in Cohort 1; Day 1 (pre-dose and 0.25, 1, 4, 12, 15, 18, 24 hours post-dose), and Days 5, 8, 14 in Cohort 2

Cmax will be calculated if data permit.

Area under the concentration-time curve from pre-dose to 24 hours (AUC0-24) of GSK2315698
Pre-dose and 0.25, 1, 2, 4, 6, 8, 12, 24 hours post-dose in Cohort 1; Day 1 (pre-dose and 0.25, 1, 4, 12, 15, 18, 24 hours post-dose), and Days 5, 8, 14 in Cohort 2

AUC0-24 will be calculated if data permit.

Time to maximum observed plasma drug concentration (Tmax) of GSK2315698
Pre-dose and 0.25, 1, 2, 4, 6, 8, 12, 24 hours post-dose in Cohort 1; Day 1 (pre-dose and 0.25, 1, 4, 12, 15, 18, 24 hours post-dose), and Days 5, 8, 14 in Cohort 2

Tmax will be calculated if data permit.

Cohort 2: Plasma concentration of GSK2315698 at 15 hours (C15hr)
Pre-dose and 0.25, 1, 4, 12, and 15 hours post-dose in Cohort 2

C15hr will be calculated if data permit.

Change from Baseline in blood concentration of serum amyloid P component (SAP)
Day 1 (pre-dose and 0.25, 1, 2, 4, 6, 8, 12, 24 hours post-dose), Day 5, and Day 8 in Cohort 1; Day 1 (pre-dose and 0.25, 1, 4, 12, 15, 18, 24 hours post-dose), and Days 5, 8, 14 in Cohort 2

Venous blood samples of approximately 2 mL will be collected for measurement of SAP.

Minimum blood concentration (Cmin) of SAP
Day 1 (pre-dose and 0.25, 1, 2, 4, 6, 8, 12, 24 hours post-dose), Day 5, and Day 8 in Cohort 1; Day 1 (pre-dose and 0.25, 1, 4, 12, 15, 18, 24 hours post-dose), and Days 5, 8, 14 in Cohort 2

Cmin will be calculated if data permit.

Time to minimum observed concentration (Tmin) of SAP
Day 1 (pre-dose and 0.25, 1, 2, 4, 6, 8, 12, 24 hours post-dose), Day 5, and Day 8 in Cohort 1; Day 1 (pre-dose and 0.25, 1, 4, 12, 15, 18, 24 hours post-dose), and Days 5, 8, 14 in Cohort 2

Tmin will be calculated if data permit.

Cohort 2: Concentration of SAP at 15 hours (C15hr)
Pre-dose and 0.25, 1, 4, 12, and 15 hours post-dose in Cohort 2

C15hr will be calculated if data permit.

Blood concentrations of SAP
19 weeks

comparison of predicted vs observed

Plasma concentrations of GSK2315698
19 weeks

changes in plasma concentrations of GSK2315698 over time

An assessment of the safety and tolerability of single intravenous dose of GSK2315698
12 weeks
To characterize the PK/PD relationship GSK2315698 in order to define an intravenous dosing regimen that provides optimal depletion of blood SAP over a 24 hour period (in healthy volunteers)
12 weeks
Secondary Endpoints
safety and tolerability of GSK2315698
19 weeks
Change from baseline in blood SAP levels
19 weeks
Measure the pharmacokinetics of IV administration of GSK2315698
12 weeks
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Study Design & Arms
AllocationRANDOMIZED
MaskingDOUBLE
ModelPARALLEL
PurposeTREATMENT
Treatment Arms
ArmTypeDescription
Cohort 1 Group AEXPERIMENTALIn dosing sessions 1, 2, and 3, subjects will receive GSK2315698 10 mg/hr, GSK2315698 20 mg/hr, and Placebo, respectively, as intravenous infusion over 1 hour.
Cohort 1 Group BEXPERIMENTALIn dosing sessions 1, 2, and 3, subjects will receive GSK2315698 10 mg/hr, Placebo, and GSK2315698 40 mg/hr, respectively, as intravenous infusion over 1 hour.
Cohort 1 Group CEXPERIMENTALIn dosing sessions 1, 2, and 3, subjects will receive Placebo, GSK2315698 20 mg/hr, and GSK2315698 40 mg/hr, respectively, as intravenous infusion over 1 hour.
Cohort 2 Group DEXPERIMENTALIn a single dosing session, subjects will receive GSK2315698 20 mg/hr as intravenous infusion over 15 hours.
Cohort 2 Group EPLACEBO_COMPARATORIn a single dosing session, subjects will receive Placebo as an intravenous infusion over 15 hours.
InterventionEXPERIMENTALIntravenous infusion for approximately 48 hours followed by subcutaneous injection
GSK2315698EXPERIMENTALIntravenous infusion single dose
Interventions
NameTypeDescription
PlaceboDRUG0.9% weight by volume (w/v) saline solution for intravenous infusion over 1 hour (in Cohort 1) or over 15 hours (in Cohort 2).
GSK2315698DRUG200 mg/mL stock solution for intravenous infusion over 1 hour (in Cohort 1) or over 15 hours (in Cohort 2). The stock solution will be diluted to obtain dosage levels of 10 mg/hr, 20 mg/hr, or 40 mg/hr.
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Eligibility Criteria
Age Range20 Years — 64 Years
SexMALE
Healthy VolunteersYes
Study Sites1

Inclusion Criteria: * Participant must be 20 to 64 years of age inclusive, at the time of signing the informed consent * Participants who are overtly healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, and cardiac monitoring. A subject with...

Countries:JapanUnited Kingdom
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