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Chloroquine, Tafenoquine

Phase 1

Malaria | Small molecule | Infectious Disease |GSK plc|Last Updated: Jun 19, 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 Trials2
Total Enrollment260
FDA Designations
No designations recorded
Clinical Trials (2)
NCT IDTitlePhaseStatusEnrollmentVelocityDesignStartCompletionLast UpdatedSitesCountries
NCT01205178G6PD (Glucose-6-phosphate Dehydrogenase) Study to Evaluate Hemolysis Potential of TFQ (Tafenoquine)PHASE1 COMPLETED 192Jul 2, 2009Apr 1, 2013Jun 7, 20172 Thailand
NCT00871156Tafenoquine/Chloroquine DDI StudyPHASE1 COMPLETED 68Mar 24, 2009Aug 26, 2009Jun 19, 20171 United States
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Study Endpoints
Primary Endpoints
To evaluate the safety, tolerability, and hemolytic potential of TQ in G6PD-deficient female healthy volunteers compared with G6PD-normal female healthy volunteers. This will be done by measuring maximum absolute decline in Haemoglobin from baseline
2 years
TQ and Chloroquine (Day 2): AUC(0-tau), Cmax and Tmax
56 days
CQ and TQ (Day 3): AUC(0-tau), AUC(0-inf), Cmax, Tmax and t1/2
56 days
AEs, vital signs, 12-lead ECGs, telemetry, clinical laboratory and ophthalmic assessments
56 days
Secondary Endpoints
Maximum absolute decline in Hgb (or Hct) from baseline for TQ in G6PD-deficient healthy volunteers compared to G6PD-normal healthy volunteers.
1 year
QTcF, QT, QRS, RR and HR as assessed by 12-lead ECG
56 Days
Changes from baseline in QTcF
56 days
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Study Design & Arms
AllocationRANDOMIZED
MaskingNONE
ModelPARALLEL
PurposeBASIC_SCIENCE
Treatment Arms
ArmTypeDescription
TafenoquineACTIVE_COMPARATORTafenoquine, TQ is an 8-aminoquinoline (8-AQ) antimalarial drug being developed for the radical cure of acute P. vivax malaria. Chloroquine will be given for the first 3 days in second and third part of this study to treat Malaria.
ChloroquineACTIVE_COMPARATORDose for first 3 days for Part B \& C of the study
PrimaquineACTIVE_COMPARATORonce daily for first 14 days
Part 1ACTIVE_COMPARATORTafenoquine + Chloroquine vs. Chloroquine alone
Part 2PLACEBO_COMPARATORChloroquine alone, Tafenoquine alone or Chloroquine+Tafenoquine
Interventions
NameTypeDescription
ChloroquineDRUGThe current gold standard for radical cure of P. vivax malaria in many areas of the world is chloroquine (CQ); typically 600 mg day 1, 600 mg day 2, 300 mg day 3 for clearance of the acute parasitemia. After this Tafenoquine will be given and subject will be followed up.
PrimaquineDRUGPrimaquine (PQ) is another 8 aminoquinoline drug available for Malaria treatment
TafenoquineDRUGOnce daily on Day 1 only. For Part B and C of this study Chloroquine will be given to treat Malaria
Chloroquine, TafenoquineDRUGChloroquine and Tafenoquine
PlaceboDRUGPlacebo
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Eligibility Criteria
Age Range18 Years — 45 Years
SexALL
Healthy VolunteersYes
Study Sites2

Inclusion Criteria: * A subject will be eligible for inclusion in this study only if all of the following criteria apply: * The subject is between 18 and 45 years of age, inclusive * A female is eligible to enter and participate in this study if she is non-pregnant, non-lactating and if she is of: ...

Countries:ThailandUnited States
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