Clinicaltrials.gov ID
EudraCT ID
Not applicable
EU CT Number
Not applicable
Trial status
Completed
Completed
Trial overview
Official title: Safety, Tolerability, and Pharmacokinetic Study of Concomitant Chloroquine and Tafenoquine in Healthy Volunteers
Trial description: DDI study of Tafenoquine and Chloroquine
Primary purpose:
Other
Trial design:
Parallel Assignment
Masking:
Double (Participant, Investigator)
Allocation:
Randomized
Primary outcomes:
TQ and Chloroquine (Day 2): AUC(0-tau), Cmax and Tmax
Timeframe: 56 days
CQ and TQ (Day 3): AUC(0-tau), AUC(0-inf), Cmax, Tmax and t1/2
Timeframe: 56 days
AEs, vital signs, 12-lead ECGs, telemetry, clinical laboratory and ophthalmic assessments
Timeframe: 56 days
Secondary outcomes:
QTcF, QT, QRS, RR and HR as assessed by 12-lead ECG
Timeframe: 56 Days
Changes from baseline in QTcF
Timeframe: 56 days
Interventions:
Drug: Chloroquine, Tafenoquine
Drug: Placebo
Enrollment:
68
Observational study model:
Not applicable
Primary completion date:
Not applicable
Time perspective:
Not applicable
Clinical publications:
Ann K. Miller, Khadeeja Mohamed, Li Ye, Emma Harrell, Sharon Baptiste-Brown, Jorg-Peter Kleim, Colin Ohrt, Stephan Duparc, Joerg Moehrle, Andrew Beelen, Alison Webster, Sandra Stinnett, Arlene Hughes, Sandy Griffith. Pharmacokinetics and Safety of Concomitant Tafenoquine and Chloroquine in Healthy Subjects. Br J Clin Pharmacol.
Medical condition
Malaria
Product
tafenoquine
Collaborators
Medicines for Malaria Venture
Study date(s)
March 2009 to August 2009
Type
Interventional
Phase
1
Participation criteria
Sex
Female & Male
Age
18 - 55 years
Accepts healthy volunteers
Yes
- Healthy as determined by a responsible and experienced physician, based on a medical evaluation including medical history, physical examination, laboratory tests and ECGs. A subject with a clinical abnormality or laboratory parameters outside the reference range may be included only if the Investigator and GSK medical monitor agree that the abnormality will not introduce additional risk factors and will not interfere with the study procedures.
- Male or female between 18 and 55 years of age inclusive, at the time of signing the informed consent.
- A positive urine drug/alcohol screen at screening or Day -1.
- History or regular use of tobacco- or nicotine-containing products within 3 months prior to screening.
Inclusion and exclusion criteria
Inclusion criteria:
- Healthy as determined by a responsible and experienced physician, based on a medical evaluation including medical history, physical examination, laboratory tests and ECGs. A subject with a clinical abnormality or laboratory parameters outside the reference range may be included only if the Investigator and GSK medical monitor agree that the abnormality will not introduce additional risk factors and will not interfere with the study procedures.
- Male or female between 18 and 55 years of age inclusive, at the time of signing the informed consent.
- A female subject is eligible to participate if she is of non-childbearing potential or of child-bearing potential if has a negative urine pregnancy test at screening and Day -1, and agrees to use agreed upon contraception methods until 56 days after stopping study drug.
- Body weight >=60 kg (132 pounds) and BMI within the range 19-32 kg/m2 (inclusive).
- Capable of giving written informed consent, which includes compliance with the requirements and restrictions listed in the consent form
Exclusion criteria:
- A positive urine drug/alcohol screen at screening or Day -1.
- History or regular use of tobacco- or nicotine-containing products within 3 months prior to screening.
- History of illicit drug abuse within 6 months prior to screening.
- History of regular alcohol consumption within 6 months of the study
- Subjects who are unwilling to comply with the lifestyle guidelines required.
- The subject has participated in a clinical trial and has received an investigational product within the following time period prior to the first dosing day in the current study: 30 days, 5 half-lives or twice the duration of the biological effect of the investigational product (whichever is longer).
- Use of prescription or non-prescription drugs, including vitamins, herbal and dietary supplements (including St John’s Wort) within 7 days (or 14 days if the drug is a potential enzyme inducer) or 5 half-lives (whichever is longer) prior to the first dose of study medication.
- History of sensitivity to any of the study medications or their components.
- Where participation in the study would result in donation of blood or blood products in excess of 500 mL within a 56 day period.
- Pregnant females as determined by positive urine hCG test at screening or prior to dosing.
- Lactating females.
- Subject is mentally or legally incapacitated.
- A positive HIV antibody, Hepatitis B surface antigen or positive Hepatitis C antibody result within 3 months of screening.
- The subject’s systolic blood pressure is outside the range of 90-150mmHg or diastolic blood pressure is outside the range of 45-90mmHg or heart rate is outside the range of 50-100bpm for female subjects and 45-100bpm for male subjects at screening and Day -1.
- Cardiac conduction abnormalities as specified inprotocol
- Any significant arrhythmia which, in the opinion of the principal investigator and GSK medical monitor, will interfere with the safety for the individual subject.
- History of angina, ischemic heart disease, myocardial infarction, or clinically significant arrhythmia.
- History of epilepsy, convulsions or psychological disorders.
- History of porphyria.
- AST, ALT or alkaline phosphatase >1.5 times the upper limit of normal and/or total bilirubin level outside the normal range at screening. A single repeat is allowed for eligibility determination.
- Documented Glucose-6-phosphate dehydrogenase (G6PD) deficiency, determined by a quantitative assay of enzyme activity.
- History of hemoglobinopathy; or current or past history of methemoglobinemia or methemoglobin percentage above the reference range at screening.
- History of previous eye surgery involving the retina, Lasik surgery within 90 days, or retinal/corneal abnormalities.
- Any clinically significant abnormalities on the screening Humphrey 10-2 visual field test.
- Best corrected visual acuity worse than 0.3 logMAR (20/40 Snellen equivalent) (i.e., 20/40 or better vision will be allowed on study).
Trial location(s)
Location
GSK Investigational Site
Buffalo, New York, United States, 14202
Status
Study Complete
Study documents
Clinical study report
Available language(s): English
Scientific result summary
Available language(s): English
If you wish to request for full study report, please contact - [email protected]
Results overview
Refer to study documents
Recruitment status
Completed
Actual primary completion date
Not applicable
Actual study completion date
2009-26-08
Plain language summaries
Plain language summaries of clinical trial results for Phase 2-4 clinical trials that were initiated on or after January 2022 will be posted by GSK within one year following study completion.
Additional information about the trial
Participate in clinical trial
Additional information
Results for study 106491 can be found on the GSK Clinical Study Register.
Click hereAccess to clinical trial data by researchers
Visit website